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1

Hot and Dense QCD Matter  

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

QCD Matter QCD Matter A Community White Paper on the Future of Relativistic Heavy-Ion Physics in the US Unraveling the Mysteries of the Strongly Interacting Quark-Gluon-Plasma Executive Summary This document presents the response of the US relativistic heavy-ion community to the request for comments by the NSAC Subcommittee, chaired by Robert Tribble, that is tasked to recommend optimizations to the US Nuclear Science Program over the next five years. The study of the properties of hot and dense QCD matter is one of the four main areas of nuclear physics research described in the 2007 NSAC Long Range Plan. The US nuclear physics community plays a leading role in this research area and has been instrumental in its most important discovery made over the past decade, namely that hot and dense QCD matter acts as a strongly interacting system with unique and previously unexpected

2

Collaborative Research: Neutrinos & Nucleosynthesis in Hot Dense Matter  

SciTech Connect (OSTI)

It is now firmly established that neutrinos, which are copiously produced in the hot and dense core of the supernova, play a role in the supernova explosion mechanism and in the synthesis of heavy elements through a phenomena known as r-process nucleosynthesis. They are also detectable in terrestrial neutrino experiments, and serve as a probe of the extreme environment and complex dynamics encountered in the supernova. The major goal of the UW research activity relevant to this project was to calculate the neutrino interaction rates in hot and dense matter of relevance to core collapse supernova. These serve as key input physics in large scale computer simulations of the supernova dynamics and nucleosynthesis being pursued at national laboratories here in the United States and by other groups in Europe and Japan. Our calculations show that neutrino production and scattering rate are altered by the nuclear interactions and that these modifications have important implications for nucleosynthesis and terrestrial neutrino detection. The calculation of neutrino rates in dense matter are difficult because nucleons in the dense matter are strongly coupled. A neutrino interacts with several nucleons and the quantum interference between scattering off different nucleons depends on the nature of correlations between them in dense matter. To describe these correlations we used analytic methods based on mean field theory and hydrodynamics, and computational methods such as Quantum Monte Carlo. We found that due to nuclear effects neutrino production rates at relevant temperatures are enhanced, and that electron neutrinos are more easily absorbed than anti-electron neutrinos in dense matter. The latter, was shown to favor synthesis of heavy neutron-rich elements in the supernova.

Reddy, Sanjay

2013-09-06T23:59:59.000Z

3

Kaon Production from Hot and Dense Matter Formed in Heavy-Ion Collisions  

E-Print Network [OSTI]

are then extended to determine kaon production in hot, dense nuclear matter by taking into account the decreasing hadron masses as a result of the restoration of chiral symmetry and the condensation of kaons. We find that the cross sections for kaon production from...

Brown, G. E.; Ko, Che Ming; Wu, Z. G.; Xia, L. H.

1991-01-01T23:59:59.000Z

4

Photon Production from Charge-Asymmetric Hot and Dense Matter  

E-Print Network [OSTI]

A new channel of direct photon production from a quark gluon plasma (QGP) is explored. This process appears at Next-to-Leading-Order in the presence of a charge asymmetry in the heated matter and may be effectively described as the bremsstrahlung of a real photon from a thermal gluon. The photon production from this new mechanism is calculated in the effective theory of QCD at high temperature. The results show that the photon production rate may not as big as the annihilation and Compton scattering at low baryon density, but could become important in baryon-rich matter.

Guang-You Qin; Abhijit Majumder; Charles Gale

2007-03-29T23:59:59.000Z

5

Quantum statistical calculation of cluster abundances in hot dense matter  

E-Print Network [OSTI]

The cluster abundances are calculated from a quantum statistical approach taking into account in-medium corrections. For arbitrary cluster size the self-energy and Pauli blocking shifts are considered. Exploratory calculations are performed for symmetric matter at temperature $T=5$ MeV and baryon density $\\varrho=0.0156$ fm$^{-3}$ to be compared with the solar element distribution. It is shown that the abundances of weakly bound nuclei with mass number $4

Gerd Ropke

2014-07-01T23:59:59.000Z

6

Omega meson as a chronometer and thermometer in hot-dense hadronic matter  

E-Print Network [OSTI]

Changes in the properties of the vector mesons in hot and dense hadronic matter, as produced in heavy ion collisions, lead to the intriguing possibility of the opening of the decay channel $\\omega \\ra \\rho \\pi$, for the omega meson, which is impossible in free space. This along with the channel $\\omega \\pi \\ra \\pi \\pi$ would result in a decrease in its effective life-time enabling it to decay within the hot zone and act as a chronometer in contradiction to the commonly held opinion and would have implications vis a vis determination of the size of the region through pion interferometry. A new peak and a radically altered shape of the low invariant mass dilepton spectra appears due to different shift in the masses of $\\rho$ and $\\omega$ mesons. The Walecka model is used for the underlying calculation for the sake of illustration.

Pradip Roy; Sourav Sarkar; Jan-e Alam; Binayak Dutt-Roy; Bikash Sinha

1999-05-12T23:59:59.000Z

7

Hot and dark matter  

E-Print Network [OSTI]

In this thesis, we build new Effective Field Theory tools to describe the propagation of energetic partons in hot and dense media, and we propose two new reactions for dark matter in the early universe. In the first part, ...

D'Eramo, Francesco

2012-01-01T23:59:59.000Z

8

Dispersion relation of the $?$ meson in hot/dense nuclear matter  

E-Print Network [OSTI]

The dispersion relation of $\\rho$ meson in both timelike and spacelike regimes in hot and dense nuclear medium is analyzed and compared with $\\sigma $ meson based on the quantum hadrodynamics model. The pole and screening masses of $\\rho $ and $\\sigma$ are discussed. The behavior of screening mass of $\\rho$ is different from that of $\\sigma$ due to different Dirac- and Fermi-sea contributions at finite temperature and density.

Ji-Sheng Chen; Jia-Rong Li; Peng-Fei Zhuang

2002-09-16T23:59:59.000Z

9

Light nuclei quasiparticle energy shift in hot and dense nuclear matter  

E-Print Network [OSTI]

Nuclei in dense matter are influenced by the medium. In the cluster mean field approximation, an effective Schr\\"odinger equation for the $A$-particle cluster is obtained accounting for the effects of the correlated medium such as self-energy, Pauli blocking and Bose enhancement. Similar to the single-baryon states (free neutrons and protons), the light elements ($2 \\le A \\le 4$, internal quantum state $\

G. Röpke

2008-10-25T23:59:59.000Z

10

Proceedings of RIKEN BNL Research Center Workshop: P- and CP-odd Effects in Hot and Dense Matter  

SciTech Connect (OSTI)

This volume contains the proceedings of the RBRC/CATHIE workshop on 'P- and CP-odd Effects in Hot and Dense Matter' held at the RIKEN-BNL Research Center on April 26-30, 2010. The workshop was triggered by the experimental observation of charge correlations in heavy ion collisions at RHIC, which were predicted to occur due to local parity violation (P- and CP-odd fluctuations) in hot and dense QCD matter. This experimental result excited a significant interest in the broad physics community, inspired a few alternative interpretations, and emphasized the need for a deeper understanding of the role of topology in QCD vacuum and in hot and dense quark-gluon matter. Topological effects in QCD are also closely related to a number of intriguing problems in condensed matter physics, cosmology and astrophysics. We therefore felt that a broad cross-disciplinary discussion of topological P- and CP-odd effects in various kinds of matter was urgently needed. Such a discussion became the subject of the workshop. Specific topics discussed at the workshop include the following: (1) The current experimental results on charge asymmetries at RHIC and the physical interpretations of the data; (2) Quantitative characterization of topological effects in QCD matter including both analytical (perturbative and non-perturbative using gauge/gravity duality) and numerical (lattice-QCD) calculations; (3) Topological effects in cosmology of the Early Universe (including baryogenesis and dark energy); (4) Topological effects in condensed matter physics (including graphene and superfiuids); and (5) Directions for the future experimental studies of P- and CP-odd effects at RHIC and elsewhere. We feel that the talks and intense discussions during the workshop were extremely useful, and resulted in new ideas in both theory and experiment. We hope that the workshop has contributed to the progress in understanding the role of topology in QCD and related fields. We thank all the speakers and participants, and express our gratitude to the event coordinator Pam Esposito for her hard work.

Deshpande, A.; Fukushima, K.; Kharzeev, D.; Warringa, H.; Voloshin, S.

2010-04-26T23:59:59.000Z

11

Anti-strange meson-baryon interaction in hot and dense nuclear matter  

E-Print Network [OSTI]

We present a study of in-medium cross sections and (off-shell) transition rates for the most relevant binary reactions for strange pseudoscalar meson production close to threshold in heavy-ion collisions at FAIR energies. Our results rely on a chiral unitary approach in coupled channels which incorporates the $s$- and $p$-waves of the kaon-nucleon interaction. The formalism, which is modified in the hot and dense medium to account for Pauli blocking effects, mean-field binding on baryons, and pion and kaon self-energies, has been improved to implement full unitarization and self-consistency for both the $s$- and $p$-wave interactions at finite temperature and density. This gives access to in-medium amplitudes in several elastic and inelastic coupled channels with strangeness content $S=-1$. The obtained total cross sections mostly reflect the fate of the $\\Lambda(1405)$ resonance, which melts in the nuclear environment, whereas the off-shell transition probabilities are also sensitive to the in-medium properties of the hyperons excited in the $p$-wave amplitudes [$\\Lambda$, $\\Sigma$ and $\\Sigma^*(1385)$]. The single-particle potentials of these hyperons at finite momentum, density and temperature are also discussed in connection with the pertinent scattering amplitudes. Our results are the basis for future implementations in microscopic transport approaches accounting for off-shell dynamics of strangeness production in nucleus-nucleus collisions.

Daniel Cabrera; Laura Tolos; Jörg Aichelin; Elena Bratkovskaya

2014-11-14T23:59:59.000Z

12

Anti-strange meson-baryon interaction in hot and dense nuclear matter  

E-Print Network [OSTI]

We present a study of in-medium cross sections and (off-shell) transition rates for the most relevant binary reactions for strange pseudoscalar meson production close to threshold in heavy-ion collisions at FAIR energies. Our results rely on a chiral unitary approach in coupled channels which incorporates the $s$- and $p$-waves of the kaon-nucleon interaction. The formalism, which is modified in the hot and dense medium to account for Pauli blocking effects, mean-field binding on baryons, and pion and kaon self-energies, has been improved to implement full unitarization and self-consistency for both the $s$- and $p$-wave interactions at finite temperature and density. This gives access to in-medium amplitudes in several elastic and inelastic coupled channels with strangeness content $S=-1$. The obtained total cross sections mostly reflect the fate of the $\\Lambda(1405)$ resonance, which melts in the nuclear environment, whereas the off-shell transition probabilities are also sensitive to the in-medium propert...

Cabrera, Daniel; Aichelin, Jörg; Bratkovskaya, Elena

2014-01-01T23:59:59.000Z

13

Strong CP violation and chiral symmetry breaking in hot and dense quark matter  

E-Print Network [OSTI]

We investigate chiral symmetry breaking and strong CP violation effects in the phase diagram of strongly interacting matter. We demonstrate the effect of strong CP violating terms on the phase structure at finite temperature and densities in a 3-flavor Nambu-Jona-Lasinio (NJL) model including the Kobayashi-Maskawa-t'Hooft (KMT) determinant term. This is investigated using an explicit structure for the ground state in terms of quark-antiquark condensates for both in the scalar and the pseudoscalar channels. CP restoring transition with temperature at zero baryon density is found to be a second order transition at $\\theta = \\pi$ while the same at finite chemical potential and small temperature turns out to be a first order transition. Within the model, the tri-critical point turns out to be $(T_c,\\mu_c)\\simeq(273,94)$ MeV at $\\theta = \\pi$ for such a transition.

Bhaswar Chatterjee; Hiranmaya Mishra; Amruta Mishra

2011-11-17T23:59:59.000Z

14

Observation of the critical end point in the phase diagram for hot and dense nuclear matter  

E-Print Network [OSTI]

Excitation functions for the Gaussian emission source radii difference ($R^2_{\\text{out}} - R^2_{\\text{side}}$) obtained from two-pion interferometry measurements in Au+Au ($\\sqrt{s_{NN}}= 7.7 - 200$ GeV) and Pb+Pb ($\\sqrt{s_{NN}}= 2.76$ TeV) collisions, are studied for a broad range of collision centralities. The observed non-monotonic excitation functions validate the finite-size scaling patterns expected for the deconfinement phase transition and the critical end point (CEP), in the temperature vs. baryon chemical potential ($T,\\mu_B$) plane of the nuclear matter phase diagram. A Finite-Size Scaling (FSS) analysis of these data indicate a second order phase transition with the estimates $T^{\\text{cep}} \\sim 165$~MeV and $\\mu_B^{\\text{cep}} \\sim 100$~MeV for the location of the critical end point. The critical exponents ($\

Lacey, Roy A

2014-01-01T23:59:59.000Z

15

Suprathermal viscosity of dense matter  

SciTech Connect (OSTI)

Motivated by the existence of unstable modes of compact stars that eventually grow large, we study the bulk viscosity of dense matter, taking into account non-linear effects arising in the large amplitude regime, where the deviation {mu}{sub {Delta}} of the chemical potentials from chemical equilibrium fulfills {mu}{sub {Delta}} > or approx. T. We find that this supra-thermal bulk viscosity can provide a potential mechanism for saturating unstable modes in compact stars since the viscosity is strongly enhanced. Our study confirms previous results on strange quark matter and shows that the suprathermal enhancement is even stronger in the case of hadronic matter. We also comment on the competition of different weak channels and the presence of suprathermal effects in various color superconducting phases of dense quark matter.

Alford, Mark; Mahmoodifar, Simin; Schwenzer, Kai [Department of Physics, Washington University in St. Louis, Missouri, 63130 (United States)

2010-12-22T23:59:59.000Z

16

Phi Meson in Dense Matter  

E-Print Network [OSTI]

The effect of the kaon loop correction to the property of a phi meson in dense matter is studied in the vector dominance model. Using the density-dependent kaon effective mass determined from the linear chiral perturbation theory, we find...

Ko, Che Ming; Levai, P.; Qiu, X. J.; Li, C. T.

1992-01-01T23:59:59.000Z

17

CP violation and chiral symmetry breaking in hot and dense quark matter in presence of magnetic field  

E-Print Network [OSTI]

We investigate chiral symmetry breaking and strong CP violation effects on the phase diagram of strongly interacting matter in presence of a constant magnetic field. The effect of magnetic field and strong CP violating term on the phase structure at finite temperature and density is studied within a three flavor Nambu-Jona-Lasinio (NJL) model including the Kobayashi-Maskawa-t'Hooft (KMT) determinant term. This is investigated using an explicit variational ansatz for ground state with quark anti-quark pairs leading to condensates both in scalar and pseudoscalar channels. Magnetic field enhances the condensate in both the channels. Inverse magnetic catalysis for CP transition at finite chemical potential is seen for zero temperature and for small magnetic fields.

Bhaswar Chatterjee; Hiranmaya Mishra; Amruta Mishra

2014-09-11T23:59:59.000Z

18

Emission of Visible Light by Hot Dense Metals  

E-Print Network [OSTI]

HIFAN 1761 EMISSION OF VISIBLE LIGHT BY HOT DENSE METALS ByDE-AC52-07NA27344. HI FAN Emission of Visible Light by HotABSTRACT We consider the emission of visible light by hot

More, R.M.

2010-01-01T23:59:59.000Z

19

Ultrafast Spectroscopy of Warm Dense Matter  

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

Ultrafast Spectroscopy of Warm Dense Matter Print Ultrafast Spectroscopy of Warm Dense Matter Print Being neither solid, liquid, gas, nor plasma, warm dense matter (WDM) occupies a no man's land in the map of material phases. Its temperature can range between that of planetary cores (tens of thousands K) to that of stellar cores (hundreds of thousands K). Not only is it prevalent throughout the universe, it is relevant to inertial confinement fusion (ICF) and material performance under extreme conditions. However, because of its extreme temperatures and pressures, WDM tends to be drastically transient and thus difficult to study in the laboratory. Now, researchers have set up ultrafast x-ray absorption spectroscopy at the ALS to measure the electronic structure of WDMs, demonstrating that fast-changing electron temperatures of matter under extreme conditions can be determined with picosecond resolution.

20

Rho Meson in Dense Hadronic Matter  

E-Print Network [OSTI]

The spectral function of a rho meson that is at rest in dense hadronic matter and couples strongly to the pion is studied in the vector dominance model by including the effect of the delta-hole polarization on the pion. With the free rho-meson mass...

Asakawa, M.; Ko, Che Ming; Levai, P.; Qiu, X. J.

1992-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "hot dense matter" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


21

Fusion reactions in multicomponent dense matter  

Science Journals Connector (OSTI)

We analyze thermonuclear and pycnonuclear fusion reactions in dense matter containing atomic nuclei of different types. We extend a phenomenological expression for the reaction rate, proposed recently by Gasques et al. [Phys. Rev. C 72, 025806 (2005)] for the one-component plasma of nuclei, to the multicomponent plasma. The expression contains several fit parameters which we adjust to reproduce the best microscopic calculations available in the literature. Furthermore, we show that pycnonuclear burning is drastically affected by an (unknown) structure of the multicomponent matter (a regular lattice, a uniform mix, etc.). We apply the results to study nuclear burning in a 12C-16O mixture. In this context, we present new calculations of the astrophysical S factors for carbon-oxygen and oxygen-oxygen fusion reactions. We show that the presence of a C-O lattice can strongly suppress carbon ignition in white dwarf cores and neutron star crusts at densities ??3×109 g cm-3 and temperatures T?108 K.

D. G. Yakovlev; L. R. Gasques; A. V. Afanasjev; M. Beard; M. Wiescher

2006-09-27T23:59:59.000Z

22

Interaction of graphite with a hot, dense deuterium plasma  

SciTech Connect (OSTI)

The erosion of ATJ-S graphite caused by a hot, dense deuterium plasma has been investigated experimentally. The plasma was produced in an electromagnetic shock tube. Plasma characteristics were typically: ion temperature approx. = 800 eV (approx. 1 x 10/sup 7/ /sup 0/K), number density approx. = 10/sup 16//cm/sup 3/, and transverse magnetic field approx. = 1 tesla. The energetic ion flux, phi, to the sample surfaces was approx. 10/sup 23/ ions/cm/sup 2/-sec for a single pulse duration of approx. 0.1 usec. Sample surfaces were metallographically prepared and examined with a scanning electron microscope before and after exposure.

Desko, J.C. Jr.

1980-01-01T23:59:59.000Z

23

Thomson Scattering from Warm Dense Matter W. R. Johnson  

E-Print Network [OSTI]

Thomson Scattering from Warm Dense Matter W. R. Johnson University of Notre Dame, Notre Dame in cell method. Email addresses: johnson@nd.edu (W. R. Johnson), nilsen1@llnl.gov (J. Nilsen), ktcheng

Johnson, Walter R.

24

Emission of Visible Light by Hot Dense Metals  

SciTech Connect (OSTI)

We consider the emission of visible light by hot metal surfaces having uniform and non-uniform temperature distributions and by small droplets of liquid metal. The calculations employ a nonlocal transport theory for light emission, using the Kubo formula to relate microscopic current fluctuations to the dielectric function of the material. We describe a related algorithm for calculating radiation emission in particle simulation of hot fusion plasmas.

More, R.M.; Goto, M.; Graziani, F.; Ni, P.A.; Yoneda, H.

2009-12-01T23:59:59.000Z

25

Bypassing the malfunction junction in warm dense matter simulations  

E-Print Network [OSTI]

Simulation of warm dense matter requires computational methods that capture both quantum and classical behavior efficiently under high-temperature, high-density conditions. Currently, density functional theory molecular dynamics is used to model electrons and ions, but this method's computational cost skyrockets as temperatures and densities increase. We propose finite-temperature potential functional theory as an in-principle-exact alternative that suffers no such drawback. We derive an orbital-free free energy approximation through a coupling-constant formalism. Our density approximation and its associated free energy approximation demonstrate the method's accuracy and efficiency.

Cangi, Attila

2014-01-01T23:59:59.000Z

26

JINA Workshop Nuclear Physics in Hot Dense Dynamic Plasmas  

SciTech Connect (OSTI)

Measuring NEET and NEEC is relevant for probing stellar cross-sections and testing atomic models in hot plasmas. Using NEEC and NEET we can excite nuclear levels in laboratory plasmas: (1) NIF: Measure effect of excited nuclear levels on (n,{gamma}) cross-sections, 60% and never been measured; (2) Omega, Test cross-sections for creating these excited levels via NEEC and NEET. Will allow us to test models that estimate resonance overlap of atomic states with the nucleus: (1) Average Atom model (AA) (CEA&LLNL), single average wave-function potential; (2) Super Transition Array (STA) model (LLNL), More realistic individual configuration potentials NEET experimental data is scarce and not in a plasma environment, NEEC has not yet been observed.

Kritcher, A L; Cerjan, C; Landen, O; Libby, S; Chen, M; Wilson, B; Knauer, J; Mcnabb, D; Caggiano, J; Bleauel, D; Weideking, M; Kozhuharov, C; Brandau, C; Stoehlker, T; Meot, V; Gosselin, G; Morel, P; Schneider, D; Bernstein, L A

2011-03-07T23:59:59.000Z

27

Suppression of Dilepton Production in Hot Hadronic Matter  

E-Print Network [OSTI]

Dilepton production from pion-pion annihilation in a hot hadronic matter is studied using an effective chiral Lagrangian that includes explicitly vector mesons. We find that the production rate for dileptons with invariant masses around the rho...

Song, C.; Lee, S. H.; Ko, Che Ming.

1995-01-01T23:59:59.000Z

28

PROCEEDINGS OF RIKEN/BNL RESEARCH CENTER WORKSHOP, EQUILIBRIUM AND NON-EQUILIBRIM ASPECTS OF HOT, DENSE QCD, VOLUME 28.  

SciTech Connect (OSTI)

The Relativistic Heavy Ion Collider (RHIC) at Brookhaven, beginning operation this year, and the Large Hadron Collider (LHC) at CERN, beginning operation {approximately}2005, will provide an unprecedented range of energies and luminosities that will allow us to probe the Gluon-Quark plasma. At RHIC and LHC, at central rapidity typical estimates of energy densities and temperatures are e * 1-10 GeV/fm3 and T0 * 300 - 900 MeV. Such energies are well above current estimates for the GQ plasma. Initially, this hot, dense plasma is far from local thermal equilibrium, making the theoretical study of transport phenomena, kinetic and chemical equilibration in dense and hot plasmas, and related issues a matter of fundamental importance. During the last few years a consistent framework to study collective effects in the Gluon-Quark plasma, and a microscopic description of transport in terms of the hard thermal (and dense) loops resummation program has emerged. This approach has the potential of providing a microscopic formulation of transport, in the regime of temperatures and densities to be achieved at RHIC and LHC. A parallel development over the last few years has provided a consistent formulation of non-equilibrium quantum field theory that provides a real-time description of phenomena out of equilibrium. Novel techniques including non-perturbative approaches and the dynamical renormalization group techniques lead to new insights into transport and relaxation. A deeper understanding of collective.excitations and transport phenomena in the GQ plasma could lead to recognize novel potential experimental signatures. New insights into small-c physics reveals a striking similarity between small-c and hard thermal loops, and novel real-time numerical simulations have recently studied the parton distributions and their thermalizations in the initial stages of a heavy ion collision.

De Vega, H.J.; Boyanovsky, D. [and others

2000-07-17T23:59:59.000Z

29

PROCEEDINGS OF RIKEN/BNL RESEARCH CENTER WORKSHOP, EQUILIBRIUM AND NON-EQUILIBRIM ASPECTTS OF HOT, DENSE QCD, VOLUME 28.  

SciTech Connect (OSTI)

The Relativistic Heavy Ion Collider (RHIC) at Brookhaven, beginning operation this year, and the Large Hadron Collider (LHC) at CERN, beginning operation {approximately}2005, will provide an unprecedented range of energies and luminosities that will allow us to probe the Gluon-Quark plasma. At RHIC and LHC, at central rapidity typical estimates of energy densities and temperatures are e * 1-10 GeV/fm3 and T0 * 300 - 900 MeV. Such energies are well above current estimates for the GQ plasma. Initially, this hot, dense plasma is far from local thermal equilibrium, making the theoretical study of transport phenomena, kinetic and chemical equilibration in dense and hot plasmas, and related issues a matter of fundamental importance. During the last few years a consistent framework to study collective effects in the Gluon-Quark plasma, and a microscopic description of transport in terms of the hard thermal (and dense) loops resummation program has emerged. This approach has the potential of providing a microscopic formulation of transport, in the regime of temperatures and densities to be achieved at RHIC and LHC. A parallel development over the last few years has provided a consistent formulation of non-equilibrium quantum field theory that provides a real-time description of phenomena out of equilibrium. Novel techniques including non-perturbative approaches and the dynamical renormalization group techniques lead to new insights into transport and relaxation. A deeper understanding of collective.excitations and transport phenomena in the GQ plasma could lead to recognize novel potential experimental signatures. New insights into small-c physics reveals a striking similarity between small-c and hard thermal loops, and novel real-time numerical simulations have recently studied the parton distributions and their thermalizations in the initial stages of a heavy ion collision.

DE VEGA,H.J.; BOYANOVSKY,D. [and others

2000-07-17T23:59:59.000Z

30

Vortices and Other Topological Solitons in Dense Quark Matter  

E-Print Network [OSTI]

In this review, we discuss various properties of topological solitons in dense QCD matter, with a particular emphasis on the CFL phase exhibiting superfluidity and superconductivity, and their phenomenological implications in terms of the effective field theories such as the Ginzburg-Landau theory, the chiral Lagrangian, or the Bogoliubov--de Gennes equation. The most fundamental topological excitations are non-Abelian vortices, which are 1/3 quantized superfluid vortices and color magnetic flux tubes. They are created at a phase transition or a rotation such compact stars. The intervortex-interaction is repulsive and consequently a vortex lattice is formed. Bosonic and fermionic zero-energy modes are trapped in the vortex core and propagate along it as gapless excitations. The former consists of translational zero modes (a Kelvin mode) with a quadratic dispersion and CP(2) Nambu-Goldstone gapless modes with a linear dispersion, while the latter is the triplet Majorana fermion zero modes. The low-energy effec...

Eto, Minoru; Nitta, Muneto; Yasui, Shigehiro

2013-01-01T23:59:59.000Z

31

Vortices and Other Topological Solitons in Dense Quark Matter  

E-Print Network [OSTI]

In this review, we discuss various properties of topological solitons in dense QCD matter, with a particular emphasis on the CFL phase exhibiting superfluidity and superconductivity, and their phenomenological implications in terms of the effective field theories such as the Ginzburg-Landau theory, the chiral Lagrangian, or the Bogoliubov--de Gennes equation. The most fundamental topological excitations are non-Abelian vortices, which are 1/3 quantized superfluid vortices and color magnetic flux tubes. They are created at a phase transition or a rotation such compact stars. The intervortex-interaction is repulsive and consequently a vortex lattice is formed. Bosonic and fermionic zero-energy modes are trapped in the vortex core and propagate along it as gapless excitations. The former consists of translational zero modes (a Kelvin mode) with a quadratic dispersion and CP(2) Nambu-Goldstone gapless modes with a linear dispersion, while the latter is the triplet Majorana fermion zero modes. The low-energy effective theory of the bosonic zero modes is a non-relativistic free complex scalar field and a CP(2) model in 1+1 dimensions. The effects of strange quark mass, electromagnetic interactions and non-perturbative quantum corrections are taken into account. Colorful boojums at the CFL interface, quantum color magnetic monopole confined by vortices, which supports the notion of quark-hadron duality, and Yang-Mills instantons inside a vortex as lumps are discussed. The interactions between a vortex and quasi-particles such as phonons, gluons, mesons, and photons are studied. A vortex lattice is shown to behave as a cosmic polarizer. Non-Abelian vortices are shown to behave as a novel kind of non-Abelian anyons. For the chiral symmetry breaking, we discuss fractional and integer axial domain walls, Abelian and non-Abelian axial vortices, axial wall-vortex composites, and Skyrmions.

Minoru Eto; Yuji Hirono; Muneto Nitta; Shigehiro Yasui

2013-08-07T23:59:59.000Z

32

Color Glass Condensates in dense quark matter and quantum Hall states of gluons  

E-Print Network [OSTI]

We apply the effective theory of color glass condensate to the analysis of gluon states in dense quark matter, in which the saturation region of gluons is also present. We find that in the region two point function of gluons shows algebraic long range order. The order is completely the same as the one gluons show in the dense quark matter, which form quantum Hall states. The order leads to the vanishing of massless gluon pole. We also find that the saturation region of gluons extends from small $x$ to even large $x\\lesssim 1$ in much dense quark matter. We point out a universality that the color glass condensate is a property of hadrons at high energy and of quark matter at high baryon density.

Aiichi Iwazaki

2006-04-26T23:59:59.000Z

33

Vortices and other topological solitons in dense quark matter  

Science Journals Connector (OSTI)

......research-article Invited Papers Nuclear Physics B35 D30 D41...Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization...the structure of the vacuum. QCD matter exhibits...density region of nuclear matter, a spin triplet......

Minoru Eto; Yuji Hirono; Muneto Nitta; Shigehiro Yasui

2014-01-01T23:59:59.000Z

34

Nuclear reactions in hot stellar matter and nuclear surface deformations  

Science Journals Connector (OSTI)

Cross sections for capture reactions of charged particles in hot stellar matter turn out be increased by the quadrupole surface oscillations when the corresponding phonon energies are of the order of the star temperature. This increase is studied in a model that combines barrier distribution induced by surface oscillations and tunneling. The capture of charged particles by nuclei with well-deformed ground states is enhanced in stellar matter. It is found that the influence of quadrupole surface deformation on the nuclear reactions in stars grows when mass and proton numbers in colliding nuclei increase.

V. Yu. Denisov

2006-11-28T23:59:59.000Z

35

Description of Hot and Dense Hadron Gas Properties in a New Excluded-Volume model  

E-Print Network [OSTI]

A new equation of state for a hot and dense hadron gas (HG) is obtained where the finite hard-core size of baryons has been incorporated in a thermodynamically consistent formulation of excluded volume correction. Our model differs from other existing approaches on the following points. We assign a hard-core volume only to each baryon and mesons though possess a small volume but they can fuse and interpenetrate into one another. Use of the full quantum statistics is made in obtaining the grand canonical partition function where excluded-volume correction has been incorporated by explicitly integrating over volume. We thus find that the new model works even for the cases of extreme temperatures and/or densities where most of other approaches fail. The model does not violate causality even at extreme densities. The temperature and density dependence of various thermodynamical quantities, e.g. pressure, baryon density, entropy and energy density compare well with the results of other microscopic HG models. After suitable parametrization of the centre-of-mass energy in terms of temperature and baryon chemical potential, we explore some new freeze-out criteria which exhibit full independence of the collision energy and of the structures of the colliding nuclei. We further demonstrate the suitability of our model in explaining various experimental results of the multiplicity-ratios of various particles and their antiparticles. Finally, we use our excluded-volume model to obtain the transport behaviour of the hot and/or dense HG such as shear viscosity to entropy ratio, speed of sound etc. and compare the results with earlier calculations.

S. K. Tiwari; P. K. Srivastava; C. P. Singh

2011-11-10T23:59:59.000Z

36

Electrical Conductivity of Dense Quark Matter with Fluctuations and Magnetic Field Included  

E-Print Network [OSTI]

We investigate the electrical conductivity(EC) of dense quark matter in the vicinity of the phase transition line. We show that: (i) At high density the Drude EC does not depend on the magnetic field up to $eB \\sim 10^{19} \\ G$. (ii) In the precritical region the fluctuation EC (paraconductivity) dominates over the Drude one.

B. O. Kerbikov; M. A. Andreichikov

2014-10-13T23:59:59.000Z

37

Forward Raman compression via photonic band gap in metals or warm dense matter  

SciTech Connect (OSTI)

The group velocity of a light pulse in photonic band gap material could considerably deviate from the speed of light in vacuum. A forward stoke and a pump pulse of different speeds would enable the Raman compression in metals or the warm dense matter. A small window of the parameter regime, where the compression is feasible via the forward Raman scattering, is identified.

Son, S. [18 Caleb Lane, Princeton, New Jersey 08540 (United States); Moon, Sung Joon [Program in Applied and Computational Mathematics, Princeton University, Princeton, New Jersey 08544 (United States)

2011-08-15T23:59:59.000Z

38

Path integral Monte Carlo and density functional molecular dynamics simulations of hot, dense helium  

Science Journals Connector (OSTI)

Two first-principles simulation techniques, path integral Monte Carlo (PIMC) and density functional molecular dynamics (DFT-MD), are applied to study hot, dense helium in the density-temperature range of 0.387–5.35?g?cm?3 and 500?K–1.28×108?K. One coherent equation of state is derived by combining DFT-MD data at lower temperatures with PIMC results at higher temperatures. Good agreement between both techniques is found in an intermediate-temperature range. For the highest temperatures, the PIMC results converge to the Debye-Hückel limiting law. In order to derive the entropy, a thermodynamically consistent free-energy fit is used that reproduces the internal energies and pressure derived from the first-principles simulations. The equation of state is presented in the form of a table as well as a fit and is compared with different free-energy models. Pair-correlation functions and the electronic density of states are discussed. Shock Hugoniot curves are compared with recent laser shock-wave experiments.

B. Militzer

2009-04-08T23:59:59.000Z

39

Future cosmological sensitivity for hot dark matter axions  

E-Print Network [OSTI]

We study the potential of a future, large-volume photometric survey to constrain the axion mass $m_a$ in the hot dark matter limit. Future surveys such as Euclid will have significantly more constraining power than current observations for hot dark matter. Nonetheless, the lowest accessible axion masses are limited by the fact that axions lighter than $\\sim 0.15$ eV decouple before the QCD epoch, assumed here to occur at a temperature $T_{\\rm QCD} \\sim 170$ MeV; this leaves an axion population of such low density that its late-time cosmological impact is negligible. For larger axion masses, $m_a \\gtrsim 0.15$ eV, where axions remain in equilibrium until after the QCD phase transition, we find that a Euclid-like survey combined with Planck CMB data can detect $m_a$ at very high significance. Our conclusions are robust against assumptions about prior knowledge of the neutrino mass. Given that the proposed IAXO solar axion search is sensitive to $m_a\\lesssim 0.2$ eV, the axion mass range probed by cosmology is n...

Archidiacono, Maria; Hamann, Jan; Hannestad, Steen; Raffelt, Georg; Wong, Yvonne Y Y

2015-01-01T23:59:59.000Z

40

A pulsed power hydrodynamics approach to exploring properties of warm dense matter  

SciTech Connect (OSTI)

Pulsed Power Hydrodynamics, as an application of low-impedance, pulsed power, and high magnetic field technology developed over the last decade to study advanced hydrodynamic problems, instabilities, turbulence, and material properties, can potentially be applied to the study of the behavior and properties of warm dense matter (WDM) as well. Exploration of the properties, such as equation of state and conductivity, of warm dense matter is an emerging area of study focused on the behavior of matter at density near solid density (from 10% of solid density to a few times solid density) and modest temperatures ({approx}1-10 eV). Warm dense matter conditions can be achieved by laser or particle beam heating of very small quantities of matter on timescales short compared to the subsequent hydrodynamic expansion timescales (isochoric heating) and a vigorous community of researchers is applying these techniques using petawatt scale laser systems, but the microscopic size scale of the WDM produced in this way limits access to some physics phenomena. Pulsed power hydrodynamics techniques, either through high convergence liner compression of a large volume, modest density, low temperature plasma to densities approaching solid density or through the explosion and subsequent expansion of a conductor (wire) against a high pressure (density) gas background (isobaric expansion) techniques both offer the prospect for producing warm dense matter in macroscopic quantities. However, both techniques demand substantial energy, proper power conditioning and delivery, and an understanding of the hydrodynamic and instability processes that limit each technique. Similarly, liner compression of normal density material, perhaps using multiple reflected shocks can provide access to the challenging region above normal density -- again with the requirement of very large amounts of driving energy. In this paper we will provide an introduction to techniques that might be applied to explore this interesting new application of the energy-rich technology of pulse power and high magnetic fields.

Reinovsky, Robert Emil [Los Alamos National Laboratory

2008-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "hot dense matter" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


41

Hot nuclear matter in an extended Brueckner approach  

Science Journals Connector (OSTI)

The properties of cold and hot nuclear matter are studied in the frame of the Brueckner theory, extended to finite temperature. The basic task is the evaluation of the two-hole line diagram using the Paris potential supplemented by the introduction of three-body forces, coming from the exchange of ? and ? mesons. The latter have an important saturating effect, but not sufficient to reach correct saturation. The latter is achieved by a phenomenological treatment. The properties of hot nuclear matter, for temperatures around 10 MeV, are investigated. Particular attention is paid to one-body properties. The density and temperature dependence of many quantities, like the single-particle energy spectrum, the optical potential, the effective mass, the non-locality of the single-particle field, the mean free path, is displayed and analyzed. The relative importance of the temperature dependence of the g-matrix and of phase space is investigated, especially in relation with the imaginary part of the optical potential and the mean free path. The temperature dependence of the effective mass is particularly studied. It is shown that the peak due to the so-called core polarization effect disappears rapidly as the matter is heated. The evaluation of the entropy and of the level density parameter a, which are closely related, is discussed, and the failure of the Hartree-Fock approach to reproduce the value of a correctly is explained. Two-body properties are also investigated. The temperature and density dependence of the two-body correlations are displayed. Particular attention is paid to the temperature dependence of the effective interaction. The latter is exhibited in a simple manner. It is shown that the effective force felt by low-energy nucleons does not change by more than a few percent when the temperature goes from 0 to 10 MeV. For high-energy nucleons, the change may be as large as ten percent.

A. Lejeune; P. Grange; M. Martzolff; J. Cugnon

1986-01-01T23:59:59.000Z

42

Properties of dense, asymmetric nuclear matter in Dirac-Brueckner-Hartree-Fock approach  

E-Print Network [OSTI]

Within the Dirac-Brueckner-Hartree-Fock approach, using the Bonn potentials, we investigate the properties of dense, asymmetric nuclear matter and apply it to neutron stars. In the actual calculations of the nucleon self-energies and the energy density of matter, we study in detail the validity of an angle-averaged approximation and an averaging of the total momentum squared of interacting two-nucleons in nuclear matter. For practical use, we provide convenient parametrizations for the equation of state for symmetric nuclear matter and pure neutron matter. We also parametrize the nucleon self-energies in terms of polynomials of nucleon momenta. Those parametrizations can accurately reproduce the numerical results up to high densities.

Tetsuya Katayama; Koichi Saito

2013-07-08T23:59:59.000Z

43

Properties of dense, asymmetric nuclear matter in Dirac-Brueckner-Hartree-Fock approach  

E-Print Network [OSTI]

Within the Dirac-Brueckner-Hartree-Fock approach, using the Bonn potentials, we investigate the properties of dense, asymmetric nuclear matter and apply it to neutron stars. In the actual calculations of the nucleon self-energies and the energy density of matter, we study in detail the validity of an angle-averaged approximation and an averaging of the total momentum squared of interacting two-nucleons in nuclear matter. For practical use, we provide convenient parametrizations for the equation of state for symmetric nuclear matter and pure neutron matter. We also parametrize the nucleon self-energies in terms of polynomials of nucleon momenta. Those parametrizations can accurately reproduce the numerical results up to high densities.

Katayama, Tetsuya

2013-01-01T23:59:59.000Z

44

Parametrization of light nuclei quasiparticle energy shifts and composition of warm and dense nuclear matter  

E-Print Network [OSTI]

Correlations and the formation of bound states (nuclei) are essential for the properties of nuclear matter in equilibrium as well as in nonequilibrium. In a quantum statistical approach, quasiparticle energies are obtained for the light elements that reflect the influence of the medium. We present analytical fits for the quasiparticle energy shifts of light nuclei that can be used in various applications. This is a prerequisite for the investigation of warm and dense matter that reproduces the nuclear statistical equilibrium and virial expansions in the low-density limit as well as relativistic mean field and Brueckner Hartree-Fock approaches near saturation density.

G. Röpke

2011-01-24T23:59:59.000Z

45

Plasma cutoff and enhancement of radiative transitions in dense stellar matter P. S. Shternin* and D. G. Yakovlev  

E-Print Network [OSTI]

Plasma cutoff and enhancement of radiative transitions in dense stellar matter P. S. Shternin-Petersburg 194021, Russia (Received 7 March 2009; published 5 June 2009) We study plasma effects on radiative transitions (e.g., decay of excited states of atoms or atomic nuclei) in a dense plasma at the transition

46

The ion potential in warm dense matter: wake effects due to streaming degenerate electrons  

E-Print Network [OSTI]

The effective dynamically screened potential of a classical ion in a stationary flowing quantum plasma at finite temperature is investigated. This is a key quantity for thermodynamics and transport of dense plasmas in the warm dense matter regime. To compute this potential a linear response description of the electrons via the Mermin dielectric function is utilized with electron-electron collisions taken into account via a relaxation time approximation. The ion potential strongly deviates from the static Yukawa potential exhibiting the familiar oscillatory structure with attractive minima (wake potential). This potential is analyzed in detail for high-density plasmas with values of the Brueckner parameter in the range $0.1 \\le r_s \\le 1$, for a broad range of plasma temperature and electron streaming velocity. It is shown that wake effects become weaker with increasing temperature of the electrons. Finally, we obtain the minimal electron streaming velocity for which attraction between ions occurs. This veloci...

Moldabekov, Zhandos; Bonitz, Michael; Ramazano, Tlekkabul

2014-01-01T23:59:59.000Z

47

Electric and magnetic response of hot QCD matter  

E-Print Network [OSTI]

We study the electric conductivity as well as the magnetic response of hot QCD matter at various temperatures $T$ and chemical potentials $\\mu_q$ within the off-shell Parton-Hadron-String Dynamics (PHSD) transport approach for interacting partonic systems in a finite box with periodic boundary conditions. The response of the strongly-interacting system in equilibrium to an external electric field defines the electric conductivity $\\sigma_0$ whereas the response to a moderate external magnetic field defines the induced diamagnetic moment $\\mu_L$ ($T, \\mu_q$) as well as the spin susceptibility $\\chi_S(T, \\mu_q)$. We find a sizeable temperature dependence of the dimensionless ratio $\\sigma_0/T$ well in line with calculations in a relaxation time approach for $T_c \\! line with results from the Dynamical QuasiParticle Model (DQPM). The spin susceptibility $\\chi_S(T,\\mu_q)$ is found to increase with temperature $T$ and to rise $\\sim \\mu_q ^2/T^2$, too. The actual values for the magnetic response of the QGP in the temperature range below 250 MeV show that the QGP should respond diamagnetically in actual ultra-relativistic heavy-ion collisions since the maximal magnetic fields created in these collisions are smaller than $B_c(T)$ which defines a boundary between diamagnetism and paramagnetism.

T. Steinert; W. Cassing

2013-12-11T23:59:59.000Z

48

Diquarks in the color-flavor locked phase of dense quark matter  

Science Journals Connector (OSTI)

Diquark excitations of dense quark matter are considered in the framework of the Nambu–Jona-Lasinio model with three types of massless quarks in the presence of a quark number chemical potential ?. We investigate the effective action of meson and diquark fields at sufficiently high values of ?, where the color-flavor locked (CFL) phase is realized, and prove the existence of NG bosons in the sector of pseudoscalar diquarks. In the sector of scalar diquarks an additional NG boson is found, corresponding to the spontaneous breaking of the U(1)B baryon symmetry in the CFL phase. Finally, the existence of massive scalar and pseudoscalar diquark excitations is demonstrated.

D. Ebert and K. G. Klimenko

2007-02-07T23:59:59.000Z

49

What's the matter at RHIC?  

E-Print Network [OSTI]

I present here a concise review of the experimental results obtained at the Relativistic Heavy Ion Collider (RHIC), which shed light on the hot and dense quark gluon matter produced at these high temperature and density conditions.

Raphael Granier de Cassagnac

2007-07-03T23:59:59.000Z

50

Multifragmentation reactions and properties of hot stellar matter at subnuclear densities  

E-Print Network [OSTI]

We point out similarity of thermodynamic conditions reached in intermediate energy nuclear collisions and in supernova explosions. We show that a statistical approach, which has been previously applied for nuclear multifragmentation reactions, can be very useful for description of electro-neutral stellar matter. Then properties of hot unstable nuclei extracted from analysis of multifragmentation data can be used for construction of a realistic equation of state of supernova matter.

A. S. Botvina; I. N. Mishustin

2005-06-20T23:59:59.000Z

51

Linear accelerator design study with direct plasma injection scheme for warm dense matter  

SciTech Connect (OSTI)

Warm Dense Matter (WDM) is a challenging science field, which is related to heavy ion inertial fusion and planetary science. It is difficult to expect the behavior because the state with high density and low temperature is completely different from ideal condition. The well-defined WDM generation is required to understand it. Moderate energy ion beams ({approx} MeV/u) slightly above Bragg peak is an advantageous method for WDM because of the uniform energy deposition. Direct Plasma Injection Scheme (DPIS) with a Interdigital H-mode (IH) accelerator has a potential for the beam parameter. We show feasible parameters of the IH accelerator for WDM. WDM physics is a challenging science and is strongly related to Heavy Ion Fusion science. WDM formation by Direct Plasma Injection Scheme (DPIS) with IH accelerator, which is a compact system, is proposed. Feasible parameters for IH accelerator are shown for WDM state. These represents that DPIS with IH accelerator can access a different parameter region of WDM.

Kondo, K.; Kanesue, T; Okamura, M.

2011-03-28T23:59:59.000Z

52

Dileptons Get Nearly "Blind" to Mass-Scaling Effects In Hot and/or Dense Matter  

E-Print Network [OSTI]

Based on BHHRS and further sharpened by discussions with Gerry Brown that I had in October 2008, we arrive at the present assessment of the dilepton saga, namely, that dileptons become "blind" to changes in the vacuum structure of chiral symmetry (such as, e.g., BR scaling at high temperature and/or at high density and hence are {\\em not} an appropriate probe for a signal for partial or complete chiral restoration, contrary to what has been widely believed. There, however, are a variety of indirect indications that the scaling notion is qualitatively, if not quantitatively, valid and should work in various low-energy nuclear phenomena, and it is fair to conclude that while there is no direct evidence for the scaling notion, there is {\\em none against} it either, in a strong disagreement with what was claimed in CERN Courier November 2009. I will touch briefly on certain observables that could give a clear-cut litmus signal for the vacuum structure of chiral symmetry modified by temperature and/or density.

Mannque Rho

2009-12-16T23:59:59.000Z

53

Nuclear symmetry energy effects on liquid-gas phase transition in hot asymmetric nuclear matter  

E-Print Network [OSTI]

The liquid-gas phase transition in hot asymmetric nuclear matter is investigated within relativistic mean-field model using the density dependence of nuclear symmetry energy constrained from the measured neutron skin thickness of finite nuclei. We find symmetry energy has a significant influence on several features of liquid-gas phase transition. The boundary and area of the liquid-gas coexistence region, the maximal isospin asymmetry and the critical values of pressure and isospin asymmetry all of which systematically increase with increasing softness in the density dependence of symmetry energy. The critical temperature below which the liquid-gas mixed phase exists is found higher for a softer symmetry energy.

Bharat K. Sharma; Subrata Pal

2010-01-14T23:59:59.000Z

54

Shear viscosity of hot nuclear matter by the mean free path method  

E-Print Network [OSTI]

The shear viscosity of hot nuclear matter is investigated by using the mean free path method within the framework of IQMD model. Finite size nuclear sources at different density and temperature are initialized based on the Fermi-Dirac distribution. The results show that shear viscosity to entropy density ratio decreases with the increase of temperature and tends toward a constant value for $\\rho\\sim\\rho_0$, which is consistent with the previous studies on nuclear matter formed during heavy-ion collisions. At $\\rho\\sim\\frac{1}{2}\\rho_0$, a minimum of $\\eta/s$ is seen at around $T=10$ MeV and a maximum of the multiplicity of intermediate mass fragment ($M_{\\text{IMF}}$) is also observed at the same temperature which is an indication of the liquid-gas phase transition.

D. Q. Fang; Y. G. Ma; C. L. Zhou

2014-04-17T23:59:59.000Z

55

Shear viscosity of hot nuclear matter by the mean free path method  

E-Print Network [OSTI]

The shear viscosity of hot nuclear matter is investigated by using the mean free path method within the framework of IQMD model. Finite size nuclear sources at different density and temperature are initialized based on the Fermi-Dirac distribution. The results show that shear viscosity to entropy density ratio decreases with the increase of temperature and tends toward a constant value for $\\rho\\sim\\rho_0$, which is consistent with the previous studies on nuclear matter formed during heavy-ion collisions. At $\\rho\\sim\\frac{1}{2}\\rho_0$, a minimum of $\\eta/s$ is seen at around $T=10$ MeV and a maximum of the multiplicity of intermediate mass fragment ($M_{\\text{IMF}}$) is also observed at the same temperature which is an indication of the liquid-gas phase transition.

Fang, D Q; Zhou, C L

2014-01-01T23:59:59.000Z

56

A new life for sterile neutrinos: resolving inconsistencies using hot dark matter  

SciTech Connect (OSTI)

Within the standard ?CDM model of cosmology, the recent Planck measurements have shown discrepancies with other observations, e.g., measurements of the current expansion rate H{sub 0}, the galaxy shear power spectrum and counts of galaxy clusters. We show that if ?CDM is extended by a hot dark matter component, which could be interpreted as a sterile neutrino, the data sets can be combined consistently. A combination of Planck data, WMAP-9 polarisation data, measurements of the BAO scale, the HST measurement of H{sub 0}, Planck galaxy cluster counts and galaxy shear data from the CFHTLens survey yields ?N{sub eff} = 0.61±0.30 and m{sub s}{sup eff} = (0.41±0.13)eV at 1?. The former is driven mainly by the large H{sub 0} of the HST measurement, while the latter is driven by cluster data. CFHTLens galaxy shear data prefer ?N{sub eff}> 0 and a non-zero mass. Taken together, we find hints for the presence of a hot dark matter component at 3?. A sterile neutrino motivated by the reactor and gallium anomalies appears rejected at even higher significance and an accelerator anomaly sterile neutrino is found in tension at 2?.

Hamann, Jan [Theory Division, Physics Department CERN, CH-1211 Geneva 23 (Switzerland); Hasenkamp, Jasper, E-mail: jan.hamann@cern.ch, E-mail: jasper.hasenkamp@nyu.edu [Center for Cosmology and Particle Physics, Physics Department New York University, New York, NY 10003 (United States)

2013-10-01T23:59:59.000Z

57

Demonstration of Successful X-ray Thomson Scattering Using Picosecond K-(alpha) X-ray Sources for the Characterization of Dense Heated Matter  

SciTech Connect (OSTI)

We discuss the first successful K-{alpha} x-ray Thomson scattering experiment from solid density plasmas for use as a diagnostic in determining the temperature, density, and ionization state of warm dense matter with picosecond resolution. The development of this source as a diagnostic and stringent requirements for successful K-{alpha} x-ray Thomson scattering are addressed. Data for the experimental techniques described in this paper [1] suggest the capability of single shot characterization of warm dense matter and the ability to use this scattering source at future Free Electron Lasers (FEL) where comparable scattering signal levels are predicted.

Kritcher, A; Neumayer, P; Lee, H J; Doeppner, T; Falcone, R; Glenzer, S; Morse, E C

2008-05-05T23:59:59.000Z

58

Quantum Kinetics of Deconfinement Transitions in Dense Nuclear Matter: Dissipation Effects at Low Temperatures  

Science Journals Connector (OSTI)

......nuclear matter of temperature ;S 0.1 MeV, as found in a neutron star core, if it occurs dynamically, is likely to pro- ceed via quantum nucleation, although no definite conclusion can be drawn in the absence of the exact information about ex and......

Kei Iida

1997-09-01T23:59:59.000Z

59

Laser-driven acceleration of a dense matter up to 'thermonuclear' velocities  

Science Journals Connector (OSTI)

The results of theoretical studies and numerical simulations of laser-driven acceleration of a flat foil up to ultrahigh velocity of the order of 1000?km?s?1, which corresponds to the achievement of thermonuclear temperatures due to kinetic energy transition into thermal energy at an inelastic impact, are reported. The behavior of a foil accelerated to such high velocities, in particular, the distribution of foil density, which defines thermonuclear reaction intensity, has been studied. The calculation results are compared with the results of the experiments performed on the Gekko/HIPER laser, where a laser-driven projectile achieved record-breaking velocity. The laser pulse and foil parameters responsible for acceleration of the projectile up to 'thermonuclear' velocities in a dense state have been determined.

S Yu Gus'kov; H Azechi; N N Demchenko; V V Demchenko; I Ya Doskoch; M Murakami; H Nagatomo; V B Rozanov; S Sakaiya; R V Stepanov; N V Zmitrenko

2007-01-01T23:59:59.000Z

60

Cold plus hot dark matter cosmology in the light of solar and atmospheric neutrino oscillations  

SciTech Connect (OSTI)

We explore the implications of possible neutrino oscillations, as indicated by the solar and atmospheric neutrino experiments, for the cold plus hot dark matter scenario of large-scale structure formation. We find that there are essentially three distinct schemes that can accommodate the oscillation data and which also allow for dark matter neutrinos. These include (i) three nearly degenerate (in mass) neutrinos, (ii) nondegenerate masses with {nu}{sub {tau}} in the eV range, and (iii) a nearly degenerate {nu}{sub {mu}}-{nu}{sub {tau}} pair (in the eV range), with the additional possibility that the electron neutrino is cosmologically significant. The last two schemes invoke a {open_quote}{open_quote}sterile{close_quote}{close_quote} neutrino which is light ({approx_lt}eV). We discuss the implications of these schemes for {bar {nu}}{sub {mu}}-{bar {nu}}{sub {ital e}} and {nu}{sub {mu}}-{nu}{sub {tau}} oscillation, and find that scheme (ii), in particular, predicts them to be in the observable range. As far as structure formation is concerned we compare the one neutrino flavor case with a variety of other possibilities, including two and three degenerate neutrino flavors. We show, both analytically and numerically, the effects of these neutrino mass scenarios on the amplitude of cosmological density fluctuations. With a Hubble constant of 50 km s{sup {minus}}{sup 1} Mpc{sup {minus}}{sup 1}, a spectral index of unity, and {Omega}{sub b}{sub a}{sub r}{sub y}{sub o}{sub n}=0.05, the two and three flavor scenarios fit the observational data marginally better than the single flavor scheme. However, taking account of the uncertainties in these parameters, we show that it is premature to pick a clear winner. {copyright} {ital 1996 The American Physical Society.}

Babu, K.S.; Schaefer, R.K.; Shafi, Q. [Bartol Research Institute, University of Delaware, Newark, Delaware 19716 (United States)] [Bartol Research Institute, University of Delaware, Newark, Delaware 19716 (United States)

1996-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "hot dense matter" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


61

Average atom transport properties for pure and mixed species in the hot and warm dense matter regimes  

SciTech Connect (OSTI)

The Kubo-Greenwood formulation for calculation of optical conductivities with an average atom model is extended to calculate thermal conductivities. The method is applied to species and conditions of interest for inertial confinement fusion. For the mixed species studied, the partial pressure mixing rule is used. Results including pressures, dc, and thermal conductivities are compared to ab initio calculations. Agreement for pressures is good, for both the pure and mixed species. For conductivities, it is found that the ad hoc renormalization method with line broadening, described in the text, gives best agreement with the ab initio results. However, some disagreement is found and the possible reasons for this are discussed.

Starrett, C. E.; Kress, J. D.; Collins, L. A.; Hanson, D. E. [Los Alamos National Laboratory, P.O. Box 1663, Los Alamos, New Mexico 87545 (United States); Clerouin, J. [CEA, DAM, DIF, 91297 Arpajon Cedex (France); Recoules, V. [CEA, DAM, DIF, 91297 Arpajon Cedex (France); LUTH UMR8102, Observatoire de Paris, CNRS, Universite Paris Diderot, 92195 Meudon (France)

2012-10-15T23:59:59.000Z

62

INT 10-2A, Quantifying the Properties of Hot QCD Matter Preliminary Schedule of Talks,  

E-Print Network [OSTI]

:00 am - Ramona Vogt, Lawrence Berkeley National Laboratory "Cold Nuclear Matter Effects on Heavy Flavor - Loren Linden-Levy, University of Colorado "Experimental Results on Quarkonia at RHIC (part I)" 10:30 am

Washington at Seattle, University of - Department of Physics, Electroweak Interaction Research Group

63

A multi-wavelength streak-optical-pyrometer for warm-dense matter experiments at NDCX-I and NDCX-II  

Science Journals Connector (OSTI)

Abstract We report on a multi-wavelength streak-optical-pyrometer (SOP) developed the for warm-dense-matter (WDM) experiments at the existing NDCX-I facility and the NDCX-II facility currently being commissioned at LBNL. The SOP served as the primary temperature diagnostic in the recent NDCX-I experiments, in which an intense K+ beam was used to heat different metal samples into WDM states. The SOP consists of a spectral grating (visible and near-infrared spectral range) and a fast, high-dynamic-range optical streak camera. The instrument is calibrated absolutely with a NIST-traceable tungsten ribbon lamp and can itself be considered as an absolutely calibrated, time-resolving spectrometer. The sample temperature is determined from fitting the recorded thermal spectrum into the Planck formula multiplied by a model of emissivity.

P.A. Ni; F.M. Bieniosek; E. Henestroza; S.M. Lidia

2014-01-01T23:59:59.000Z

64

Detailed analysis of hollow ions spectra from dense matter pumped by X-ray emission of relativistic laser plasma  

SciTech Connect (OSTI)

X-ray emission from hollow ions offers new diagnostic opportunities for dense, strongly coupled plasma. We present extended modeling of the x-ray emission spectrum reported by Colgan et al. [Phys. Rev. Lett. 110, 125001 (2013)] based on two collisional-radiative codes: the hybrid-structure Spectroscopic Collisional-Radiative Atomic Model (SCRAM) and the mixed-unresolved transition arrays (MUTA) ATOMIC model. We show that both accuracy and completeness in the modeled energy level structure are critical for reliable diagnostics, investigate how emission changes with different treatments of ionization potential depression, and discuss two approaches to handling the extensive structure required for hollow-ion models with many multiply excited configurations.

Hansen, S. B., E-mail: sbhanse@sandia.gov, E-mail: anatolyf@hotmail.com [Sandia National Laboratories, Albuquerque, New Mexico 87123 (United States); Colgan, J.; Abdallah, J. [Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)] [Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States); Faenov, A. Ya., E-mail: sbhanse@sandia.gov, E-mail: anatolyf@hotmail.com [Joint Institute for High Temperatures, Russian Academy of Sciences, Moscow 125412 (Russian Federation); Quantum Beam Science Directorate, Japan Atomic Energy Agency, Kyoto 619-0215 (Japan); Pikuz, S. A.; Skobelev, I. Yu. [Joint Institute for High Temperatures, Russian Academy of Sciences, Moscow 125412 (Russian Federation)] [Joint Institute for High Temperatures, Russian Academy of Sciences, Moscow 125412 (Russian Federation); Wagenaars, E.; Culfa, O.; Dance, R. J.; Tallents, G. J.; Rossall, A. K.; Woolsey, N. C. [York Plasma Institute, Department of Physics, University of York, York YO10 5DD (United Kingdom)] [York Plasma Institute, Department of Physics, University of York, York YO10 5DD (United Kingdom); Booth, N.; Lancaster, K. L. [Central Laser Facility, STFC Rutherford Appleton Laboratory, Didcot OX11 0QX (United Kingdom)] [Central Laser Facility, STFC Rutherford Appleton Laboratory, Didcot OX11 0QX (United Kingdom); Evans, R. G. [Department of Physics, Imperial College, London SW7 2AZ (United Kingdom)] [Department of Physics, Imperial College, London SW7 2AZ (United Kingdom); Gray, R. J.; McKenna, P. [SUPA, Department of Physics, University of Strathclyde, Glasgow G4 ONG (United Kingdom)] [SUPA, Department of Physics, University of Strathclyde, Glasgow G4 ONG (United Kingdom); Kaempfer, T.; Schulze, K. S. [Helmholtzinstitut Jena, Jena D-07743 (Germany)] [Helmholtzinstitut Jena, Jena D-07743 (Germany); Uschmann, I. [Helmholtzinstitut Jena, Jena D-07743 (Germany) [Helmholtzinstitut Jena, Jena D-07743 (Germany); Institut für Optik und Quantenelektronic, Friedrich-Schiller-Universität Jena, Max-Wien Platz 1, Jena, D-07743 (Germany); and others

2014-03-15T23:59:59.000Z

65

Probing the neutron star interior and the Equation of State of cold dense matter with the SKA  

E-Print Network [OSTI]

With an average density higher than the nuclear density, neutron stars (NS) provide a unique test-ground for nuclear physics, quantum chromodynamics (QCD), and nuclear superfluidity. Determination of the fundamental interactions that govern matter under such extreme conditions is one of the major unsolved problems of modern physics, and -- since it is impossible to replicate these conditions on Earth -- a major scientific motivation for SKA. The most stringent observational constraints come from measurements of NS bulk properties: each model for the microscopic behaviour of matter predicts a specific density-pressure relation (its `Equation of state', EOS). This generates a unique mass-radius relation which predicts a characteristic radius for a large range of masses and a maximum mass above which NS collapse to black holes. It also uniquely predicts other bulk quantities, like maximum spin frequency and moment of inertia. The SKA, in Phase 1 and particularly in Phase 2 will, thanks to the exquisite timing pr...

Watts, Anna; Espinoza, Cristobal; Andersson, Nils; Antoniadis, John; Antonopoulou, Danai; Buchner, Sarah; Dai, Shi; Demorest, Paul; Freire, Paulo; Hessels, Jason; Margueron, Jerome; Oertel, Micaela; Patruno, Alessandro; Possenti, Andrea; Ransom, Scott; Stairs, Ingrid; Stappers, Ben

2015-01-01T23:59:59.000Z

66

Theoretical treatments of the bound-free contribution and experimental best practice in X-ray Thomson scattering from warm dense matter  

SciTech Connect (OSTI)

By comparison with high-resolution synchrotron x-ray experimental results, we assess several theoretical treatments for the bound-free (core-electron) contribution to x-ray Thomson scattering (i.e., also known as nonresonant inelastic x-ray scattering). We identify an often overlooked source of systematic error in the plane-wave form factor approximation (PWFFA) used in the inference of temperature, ionization state, and free electron density in some laser-driven compression studies of warm dense matter. This error is due to a direct violation of energy conservation in the PWFFA. We propose an improved practice for the bound-free term that will be particularly relevant for XRTS experiments performed with somewhat improved energy resolution at the National Ignition Facility or the Linac Coherent Light Source. Our results raise important questions about the accuracy of state variable determination in XRTS studies, given that the limited information content in low-resolution XRTS spectra does not strongly constrain the models of electronic structure being used to fit the spectra.

Mattern, Brian A.; Seidler, Gerald T. [Department of Physics, University of Washington, Seattle, Washington 98195-1560 (United States)

2013-02-15T23:59:59.000Z

67

Quantum Simulations for Dense Matter  

SciTech Connect (OSTI)

High pressure systems are important, for example, to understand the interiors of giant planets (Jupiter and Saturn), for experiments at NIF (the National Ignition Facility at Livermore) related to inertially confined fusion and for other interests of DOE. In this project, we are developing innovative simulation methods (Quantum Monte Carlo methods) to allow more accurate calculation of properties of systems under extreme conditions of pressure and temperature. These methods can use the power of current day supercomputers made of very many processors, starting from the basic equations of physics to model quantum phenomena important at the microscopic scale. During the grant period, we have settled two important questions of the physics of hydrogen and helium under extreme conditions. We have found the pressures and temperatures when hydrogen and helium mix together; this is important to understand the difference of the interiors of the planets Jupiter and Saturn. Secondly, we have shown that there exists a sharp transition as a function of pressure between molecular and atomic liquid hydrogen at temperatures below 2000K. This prediction can be confirmed with high pressure experiments.

Ceperley, David M

2010-06-07T23:59:59.000Z

68

Evidence for a Soft Nuclear-Matter Equation of State  

Science Journals Connector (OSTI)

The entropy of the fireball formed in central collisions of heavy nuclei at center-of-mass kinetic energies of a few hundred MeV per nucleon is estimated from the ratio of deuterons to protons at large transverse momentum. The observed paucity of deuterons suggests that strong attractive forces are present in hot, dense nuclear matter, or that degrees of freedom beyond the nucleon and pion may already be realized at an excitation energy of 100 MeV per baryon.

Philip J. Siemens and Joseph I. Kapusta

1979-11-12T23:59:59.000Z

69

Astrophysical implications of gapless color-flavor locked quark matter: A hot water bottle for aging neutron stars  

Science Journals Connector (OSTI)

The gapless color-flavor locked (gCFL) phase is a candidate for the second-densest phase of matter in the QCD phase diagram, making it a plausible constituent of the core of neutron stars. We show that even a relatively small region of gCFL matter in a star will dominate both the heat capacity CV and the heat loss by neutrino emission L?. The gCFL phase is characterized by an unusual quasiparticle dispersion relation that makes both its specific heat cV and its neutrino emissivity ?? parametrically larger than in any other phase of nuclear or quark matter. During the epoch in which the cooling of the star is dominated by direct Urca neutrino emission, the presence of a gCFL region does not strongly alter the cooling history because the enhancements of CV and L? cancel against each other. At late times, however, the cooling is dominated by photon emission from the surface, so L? is irrelevant, and the anomalously large heat capacity of the gCFL region keeps the star warm. The temperature drops with time as T?t-1.4 rather than the canonical T?t-5. This provides a unique and potentially observable signature of gCFL quark matter.

Mark Alford; Pooja Jotwani; Chris Kouvaris; Joydip Kundu; Krishna Rajagopal

2005-06-27T23:59:59.000Z

70

Shedding Light on Dark Matter in Hot, Massive, and Awfully Complicated Cluster of Galaxies 1E0657-56  

SciTech Connect (OSTI)

The cluster of galaxies 1E0657-56 has been the subject of intense ongoing research in the last few years. This system is remarkably well-suited to addressing outstanding issues in both cosmology and fundamental physics. It is one of the hottest and most luminous X-ray clusters known and is unique in being a major supersonic cluster merger occurring nearly in the plane of the sky, earning it the nickname 'the Bullet Cluster'. In this talk I will present our measurements of the composition of this system, show the evidence for existence of dark matter, and describe limits that can be placed on the intrinsic properties of dark matter particles. In addition, I will explain how this cluster offers a serious challenge to MOdified Newtonian Dynamics (MOND) theories.

Bradac, Marusa

2006-11-20T23:59:59.000Z

71

Using Nuclear Fusion Reactions to Peer Inside the Core of a Dense...  

Office of Science (SC) Website

Using Nuclear Fusion Reactions to Peer Inside the Core of a Dense Hot Plasma Fusion Energy Sciences (FES) FES Home About Research Facilities Science Highlights Benefits of FES...

72

X-RAY SCALING RELATION IN EARLY-TYPE GALAXIES: DARK MATTER AS A PRIMARY FACTOR IN RETAINING HOT GAS  

SciTech Connect (OSTI)

We have revisited the X-ray scaling relations of early-type galaxies (ETG) by investigating, for the first time, the L{sub X,Gas}-M{sub Total} relation in a sample of 14 ETGs. In contrast to the large scatter (a factor of 10{sup 2}-10{sup 3}) in the L{sub X,Total}-L{sub B} relation, we found a tight correlation between these physically motivated quantities with an rms deviation of a factor of three in L{sub X,Gas} = 10{sup 38}-10{sup 43} erg s{sup –1} or M{sub Total} = a few × 10{sup 10} to a few × 10{sup 12} M{sub ?}. More striking, this relation becomes even tighter with an rms deviation of a factor of 1.3 among the gas-rich galaxies (with L{sub X,Gas} > 10{sup 40} erg s{sup –1}). In a simple power-law form, the new relation is (L{sub X,Gas}/10{sup 40} erg s{sup –1}) = (M{sub Total}/3.2 × 10{sup 11} M{sub ?}){sup 3}. This relation is also consistent with the steep relation between the gas luminosity and temperature, L{sub X,Gas} ? T{sub Gas} {sup 4.5}, identified by Boroson et al., if the gas is virialized. Our results indicate that the total mass of an ETG is the primary factor in regulating the amount of hot gas. Among the gas-poor galaxies (with L{sub X,Gas} < a few × 10{sup 39} erg s{sup –1}), the scatter in the L{sub X,Gas}-M{sub Total} (and L{sub X,Gas}-T{sub Gas}) relation increases, suggesting that secondary factors (e.g., rotation, flattening, star formation history, cold gas, environment, etc.) may become important.

Kim, Dong-Woo; Fabbiano, Giuseppina [Smithsonian Astrophysical Observatory, 60 Garden Street, Cambridge, MA 02138 (United States)

2013-10-20T23:59:59.000Z

73

Dark Matter Gravitational Interactions  

E-Print Network [OSTI]

We argue that the conjectured dark mater in the Universe may be endowed with a new kind of gravitational charge that couples to a short range gravitational interaction mediated by a massive vector field. A model is constructed that assimilates this concept into ideas of current inflationary cosmology. The model is also consistent with the observed behaviour of galactic rotation curves according to Newtonian dynamics. The essential idea is that stars composed of ordinary (as opposed to dark matter) experience Newtonian forces due to the presence of an all pervading background of massive gravitationally charged cold dark matter. The novel gravitational interactions are predicted to have a significant influence on pre-inflationary cosmology. The precise details depend on the nature of a gravitational Proca interaction and the description of matter. A gravitational Proca field configuration that gives rise to attractive forces between dark matter charges of like polarity exhibits homogeneous isotropic eternal cosmologies that are free of cosmological curvature singularities thus eliminating the horizon problem associated with the standard big-bang scenario. Such solutions do however admit dense hot pre-inflationary epochs each with a characteristic scale factor that may be correlated with the dark matter density in the current era of expansion. The model is based on a theory in which a modification of Einsteinian gravity at very short distances can be expressed in terms of the gradient of the Einstein metric and the torsion of a non-Riemannian connection on the bundle of linear frames over spacetime. Indeed we demonstrate that the genesis of the model resides in a remarkable simplification that occurs when one analyses the variational equations associated with a broad class of non-Riemannian actions.

R. W. Tucker; C. Wang

1996-12-09T23:59:59.000Z

74

Electrical conductivity of warm dense tungsten  

Science Journals Connector (OSTI)

Abstract The electrical conductivity of warm dense tungsten plasma has been investigated successfully by a linear mixture rule considering various interactions of electrons with electrons, atoms, and ions. The plasma composition is calculated by the nonideal Saha equation. The interesting regime for tungsten plasma spans from weakly coupled and nondegenerate regime to strongly coupled and partial degenerate state. The electrical conductivity calculated is in reasonable agreement with the exploding wire experiments and other theoretical models. The present result demonstrates that the theoretical model is valid for the electrical conductivity of tungsten plasma in the warm dense matter regime.

Zhijian Fu; Lijun Jia; Xiaowei Sun; Qifeng Chen

2013-01-01T23:59:59.000Z

75

Electrical and thermal conductivities in dense plasmas  

SciTech Connect (OSTI)

Expressions for the electrical and thermal conductivities in dense plasmas are derived combining the Chester-Thellung-Kubo-Greenwood approach and the Kramers approximation. The infrared divergence is removed assuming a Drude-like behaviour. An analytical expression is obtained for the Lorenz number that interpolates between the cold solid-state and the hot plasma phases. An expression for the electrical resistivity is proposed using the Ziman-Evans formula, from which the thermal conductivity can be deduced using the analytical expression for the Lorenz number. The present method can be used to estimate electrical and thermal conductivities of mixtures. Comparisons with experiment and quantum molecular dynamics simulations are done.

Faussurier, G., E-mail: gerald.faussurier@cea.fr; Blancard, C.; Combis, P.; Videau, L. [CEA, DAM, DIF, F-91297 Arpajon (France)

2014-09-15T23:59:59.000Z

76

Dense gas-compatible enzymes  

DOE Patents [OSTI]

An enzymatic reaction system including a modified enzyme, and a dense gas system; modified enzymes; and methods of reacting modified enzymes in a dense gas system or liquid carbon dioxide.

Kao, Fu-jung (Dracut, MA); Laintz, Kenneth E. (Los Alamos, NM); Sawan, Samuel P. (Tyngsborough, MA); Sivils, L. Dale (Jupiter, FL); Spall, W. Dale (Los Alamos, NM)

1998-07-21T23:59:59.000Z

77

Spectrally Resolved Intensities of Ultra-Dense Hot Aluminum Plasmas  

SciTech Connect (OSTI)

We present a first study of spectroscopic determination of electron temperature and density spatial profiles of aluminum K-shell line emission spectra from laser-shocked aluminum experiments performed at LULI. The radiation emitted by the aluminum plasma was dispersed with an ultra-high resolution spectrograph ({lambda}/{delta}{lambda}{approx_equal}6000). From the recorded films one can extract a set of time-integrated emission lineouts associated with the corresponding spatial region of the plasma. The observed spectra include the Ly{alpha}, He{beta}, He{gamma}, Ly{beta} and Ly{gamma} line emissions and their associated He- and Li-like satellites thus covering a photon energy range from 1700 eV to 2400 eV approximately. The data analysis rely on the ABAKO/RAPCAL computational package, which has been recently developed at the University of Las Palmas de Gran Canaria and takes into account non-equilibrium collisional-radiative atomic kinetics, Stark broadened line shapes and radiation transport calculations.

Gil, J. M.; Rodriguez, R.; Florido, R.; Rubiano, J. G.; Martel, P. [Departamento de Fisica, Universidad de Las Palmas de Gran Canaria, 35017 Las Palmas de Gran Canaria (Spain); Instituto de Fusion Nuclear, Universidad Politecnica de Madrid, 28006 Madrid (Spain); Minguez, E. [Instituto de Fusion Nuclear, Universidad Politecnica de Madrid, 28006 Madrid (Spain); Sauvan, P. [Departamento de Ingenieria Energetica, UNED, Madrid (Spain); Instituto de Fusion Nuclear, Universidad Politecnica de Madrid, 28006 Madrid (Spain); Angelo, P.; Dalimier, E. [Physique Atomique dans les Plasmas Denses, LULI, CNRS-CEA-Ecole Polytechnique-Universite Paris VI, 75252 Paris cedex 05 (France); Schott, R.; Mancini, R. [Department of Physics, University of Nevada, Reno, NV 89557 (United States)

2008-10-22T23:59:59.000Z

78

Hot Canyon  

ScienceCinema (OSTI)

This historical film footage, originally produced in the early 1950s as part of a series by WOI-TV, shows atomic research at Ames Laboratory. The work was conducted in a special area of the Laboratory known as the "Hot Canyon."

None

2013-03-01T23:59:59.000Z

79

Geometrical Optics of Dense Aerosols  

SciTech Connect (OSTI)

Assembling a free-standing, sharp-edged slab of homogeneous material that is much denser than gas, but much more rare ed than a solid, is an outstanding technological challenge. The solution may lie in focusing a dense aerosol to assume this geometry. However, whereas the geometrical optics of dilute aerosols is a well-developed fi eld, the dense aerosol limit is mostly unexplored. Yet controlling the geometrical optics of dense aerosols is necessary in preparing such a material slab. Focusing dense aerosols is shown here to be possible, but the nite particle density reduces the eff ective Stokes number of the flow, a critical result for controlled focusing. __________________________________________________

Hay, Michael J.; Valeo, Ernest J.; Fisch, Nathaniel J.

2013-04-24T23:59:59.000Z

80

Pseudo-Goldstone modes in isospin-asymmetric nuclear matter  

SciTech Connect (OSTI)

The authors analyze the chiral limit in dense isospin-asymmetric nuclear matter. It is shown that the pseudo-Goldstone modes in this system are qualitatively different from the case of isospin-symmetric matter.

Cohen, T.D. [Univ. of Washington, Seattle, WA (United States); Broniowski, W. [H. Niewodniczanski Institute of Nuclear Physics, Cracow (Poland)

1995-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "hot dense matter" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


81

Fragmentation of hot classical drops  

Science Journals Connector (OSTI)

Time evolution of hot drops of matter containing ?230 or ?130 particles is studied by classical molecular dynamics. Initially, the drops have uniform density and a sharp surface. The chosen initial conditions include three values of density and a range of temperatures wide enough to study the phenomena of evaporation, fragmentation, and total vaporization in a unified fashion. The average density and temperature of central matter is measured periodically to obtain trajectories of the evolution in the ?,T plane. These trajectories indicate that the matter expands almost adiabatically until it reaches the region of adiabatic instabilities. Density inhomogeneities develop in this region, but the matter fragments only if the expansion continues to average densities of less than one-fourth the liquid density, otherwise it recondenses into a single blob. The recondensed matter and fragments have very crooked surfaces. If the temperature is high enough, the expanding matter does not enter the region of adiabatic instabilities and totally vaporizes. For initial densities of the order of equilibrium density, matter does not fragment or develop large inhomogeneities in the region enclosed by the isothermal and adiabatic spinodals. Thus it appears unlikely that fragmentation of small drops (nuclei) can be used to study the isothermal critical region of gas-liquid phase transition. A detailed tabulation of the energies and number of monomers, dimers, light, and heavy fragments emitted in each event is presented.

A. Vicentini; G. Jacucci; V. R. Pandharipande

1985-05-01T23:59:59.000Z

82

Dispersion relations of mesons in symmetric nuclear matter  

E-Print Network [OSTI]

We calculate dispersion relations and propagators for the $\\sigma$, $\\omega$, $\\pi$, $\\rho$, $\\delta$, $\\eta$ and $a_1$ mesons in relativistic, dense, hot, symmetric nuclear matter. In addition to the usual mixing of the $\\sigma-\\omega$ system, we obtain mixing of the $\\delta$ with the longitudinal $\\rho$ mode and of the tranverse $\\rho$ with the transverse $a_1$ mode. Finally, the component of the $a_1$ polarization along the transferred momentum modifies the in-medium pion propagator in a way similar to the Migdal contact interaction, but with the opposite sign. The spurious pion condensate as well as the additional contribution from the $a_1$ meson are removed by a contact term. We compare two ways of implementing contact term subtraction.

L. Mornas

2001-07-02T23:59:59.000Z

83

Six Hot Topics in Planetary Astronomy  

E-Print Network [OSTI]

Six hot topics in modern planetary astronomy are described: 1) lightcurves and densities of small bodies 2) colors of Kuiper belt objects and the distribution of the ultrared matter 3) spectroscopy and the crystallinity of ice in the outer Solar system 4) irregular satellites of the giant planets 5) the Main Belt Comets and 6) comets and meteor stream parents.

David Jewitt

2008-11-14T23:59:59.000Z

84

Plasmas are Hot and Fusion is Cool  

SciTech Connect (OSTI)

Plasmas are Hot and Fusion is Cold. The DOE Princeton Plasma Physics Laboratory (PPPL) collaborates to develop fusion as a safe, clean and abundant energy source for the future. This video discusses PPPL's research and development on plasma, the fourth state of matter.

None

2011-01-01T23:59:59.000Z

85

Pressure Ionization of Condensed Matter under Intense Shock Waves at Megabars  

Science Journals Connector (OSTI)

Physical properties of hot dense matter at megabar pressures are considered. The new experimental results on pressure ionization of hot matter generated by multiple shock compression of hydrogen and noble gases are presented. The low?frequency electrical conductivity of shock compressed hydrogen helium and xenon plasmas was measured in the megabar range of pressures. To reduce effects of irreversible heating and to implement a quasi?isentropic regime strongly compressed matter was generated by the method of multiple shock compression in planar and cylindrical geometries. As a result plasma states at pressures of the megabar range were realized where the electron concentration could be as high ne ? 2×1023 cM ?3 which may correspond to either a degenerate or a Boltzmann plasma characterized by a strong Coulomb and a strong inter?atomic interaction. A sharp increase (by three to five orders of magnitude) in the electrical conductivity of a strongly nonideal plasma due to pressure ionization was recorded and theoretical models were invoked to describe this increase. Opposite effect was observed for lithium compressed by multiple shock up to pressures ? 200 GPa where electrical conductivity was sharply decreased as pressure increased.

V. E. Fortov; V. K. Gryaznov; R. I. Il’kaev; A. L. Mikhaylov; V. B. Mintsev; M. A. Mochalov; A. A. Pyalling; V. Ya. Ternovoi; M. V. Zhernokletov

2004-01-01T23:59:59.000Z

86

HOT TOPIC: Nanotechnology lecture  

Science Journals Connector (OSTI)

...Check-Bits HOT TOPIC: Nanotechnology lecture TOP SITE www.ukonlineforbusiness...proper handling. HOT TOPIC Nanotechnology lecture FUTURESHOCK Cyborgs...Cheltenham and Gloucester Branch. Nanotechnology Devices Defying Nature is taking......

HOT TOPIC: Nanotechnology lecture

2003-11-01T23:59:59.000Z

87

Intense Ion Beam for Warm Dense Matter Physics  

E-Print Network [OSTI]

limit the ?ow of plasma into the ?nal focus solenoid. Onceneutralizing plasma that enables us to focus to emittanceplasma is strongly coupled to the ?eld lines provided by the ? nal focus

Heimbucher, Lynn

2008-01-01T23:59:59.000Z

88

Intense Ion Beam for Warm Dense Matter Physics  

E-Print Network [OSTI]

break-even point in a fusion reactor, or ignition, where theoriginal report on fusion reactors (initially classi?ed). [Inertial Fusion Energy (IFE) reactor and power plant

Heimbucher, Lynn

2008-01-01T23:59:59.000Z

89

Dense Bottom Currents in Rotating Ocean  

Science Journals Connector (OSTI)

A dense bottom current is the flow created by a source of mass, momentum, and buoyancy flowing into an ambient fluid in such a way that the flow is bounded by the fixed wall and the interface. The dense bottom...

Flemming Bo Pedersen

1986-01-01T23:59:59.000Z

90

Dense, finely, grained composite materials  

DOE Patents [OSTI]

Dense, finely grained composite materials comprising one or more ceramic phase or phase and one or more metallic and/or intermetallic phase or phases are produced by combustion synthesis. Spherical ceramic grains are homogeneously dispersed within the matrix. Methods are provided, which include the step of applying mechanical pressure during or immediately after ignition, by which the microstructures in the resulting composites can be controllably selected.

Dunmead, Stephen D. (Davis, CA); Holt, Joseph B. (San Jose, CA); Kingman, Donald D. (Danville, CA); Munir, Zuhair A. (Davis, CA)

1990-01-01T23:59:59.000Z

91

Dense Plasma X-ray Scattering: Methods and Applications  

SciTech Connect (OSTI)

We have developed accurate x-ray scattering techniques to measure the physical properties of dense plasmas. Temperature and density are inferred from inelastic x-ray scattering data whose interpretation is model-independent for low to moderately coupled systems. Specifically, the spectral shape of the non-collective Compton scattering spectrum directly reflects the electron velocity distribution. In partially Fermi degenerate systems that have been investigated experimentally in laser shock-compressed beryllium, the Compton scattering spectrum provides the Fermi energy and hence the electron density. We show that forward scattering spectra that observe collective plasmon oscillations yield densities in agreement with Compton scattering. In addition, electron temperatures inferred from the dispersion of the plasmon feature are consistent with the ion temperature sensitive elastic scattering feature. Hence, theoretical models of the static ion-ion structure factor and consequently the equation of state of dense matter can be directly tested.

Glenzer, S H; Lee, H J; Davis, P; Doppner, T; Falcone, R W; Fortmann, C; Hammel, B A; Kritcher, A L; Landen, O L; Lee, R W; Munro, D H; Redmer, R; Weber, S

2009-08-19T23:59:59.000Z

92

Air Pollution Control Regulations: No. 13- Particulate Emissions from Fossil Fuel Fired Steam or Hot Water Generating Units (Rhode Island)  

Broader source: Energy.gov [DOE]

The purpose of this regulation is to limit emissions of particulate matter from fossil fuel fired and wood-fired steam or hot water generating units.

93

A Representation of SU(2) and Isospin Waves in a Solid Nuclear Matter  

Science Journals Connector (OSTI)

......2) and Isospin Waves in a Solid Nuclear Matter Koichi Takahashi Department...variational evaluation of the ground state energy under pion condensation on a dense...Deformation of Lattice in a Solid Nuclear Matter Koichi Takahashi References......

Koichi Takahashi

1991-09-01T23:59:59.000Z

94

Lattice Dynamics of Dense Lithium  

Science Journals Connector (OSTI)

We report low-frequency high-resolution Raman spectroscopy and ab-initio calculations on dense lithium from 40 to 200 GPa at low temperatures. Our experimental results reveal rich first-order Raman activity in the metallic and semiconducting phases of lithium. The computed Raman frequencies are in excellent agreement with the measurements. Free energy calculations provide a quantitative description and physical explanation of the experimental phase diagram only when vibrational effect are correctly treated. The study underlines the importance of zero-point energy in determining the phase stability of compressed lithium.

F. A. Gorelli; S. F. Elatresh; C. L. Guillaume; M. Marqués; G. J. Ackland; M. Santoro; S. A. Bonev; E. Gregoryanz

2012-01-30T23:59:59.000Z

95

Hot Plate Station  

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

temperature is limited to 200C in order to maintain temperature inside the cleanroom. A hood located over the hot plate station ensures evaporated fumes are not released...

96

Pilgrim Hot Springs, Alaska  

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

data processing and use of FLIR - fast, cost effective method to measure natural heat loss * Pilgrim Hot Springs Resource Development - baseload power for the Nome area....

97

Effects of anisotropy on optimal dense coding  

E-Print Network [OSTI]

We study optimal dense coding with thermal entangled states of a two-qubit anisotropic \\emph{XXZ} model and a Heisenberg model with Dzyaloshinski-Moriya (DM) interactions. The DM interaction is another kind of anisotropic antisymmetric exchange interaction. The effects of these two kinds of anisotropies on dense coding are studied in detail for both the antiferromagnetic and ferromagnetic cases. For the two models, we give the conditions that the parameters of the models have to satisfy for a valid dense coding. We also found that even though there is entanglement, it is unavailable for our optimal dense coding, which is the same as entanglement teleportation.

Guo-Feng Zhang

2008-11-13T23:59:59.000Z

98

Reactor hot spot analysis  

SciTech Connect (OSTI)

The principle methods for performing reactor hot spot analysis are reviewed and examined for potential use in the Applied Physics Division. The semistatistical horizontal method is recommended for future work and is now available as an option in the SE2-ANL core thermal hydraulic code. The semistatistical horizontal method is applied to a small LMR to illustrate the calculation of cladding midwall and fuel centerline hot spot temperatures. The example includes a listing of uncertainties, estimates for their magnitudes, computation of hot spot subfactor values and calculation of two sigma temperatures. A review of the uncertainties that affect liquid metal fast reactors is also presented. It was found that hot spot subfactor magnitudes are strongly dependent on the reactor design and therefore reactor specific details must be carefully studied. 13 refs., 1 fig., 5 tabs.

Vilim, R.B.

1985-08-01T23:59:59.000Z

99

Viscosity measurements in dense microemulsions  

Science Journals Connector (OSTI)

We report the results of a measurement of the shear viscosity as a function of the temperature and of the water volume fraction in a three-component sodium di(2-ethylhexyl)sulfosuccinate-decane-water microemulsion. The explored concentration range is 0???0.73 and the packing fraction of the water-in-oil spherical droplets has been changed in order to obtain a very dense glass-forming liquid. Well-defined maxima in the relative viscosity have been observed at different concentrations and the corresponding temperature values decrease with increasing ?. The data are discussed considering the system as a colloidal one in which aggregation phenomena are present. In such a way, on the basis of a two-fluid model, we can consider two different contributions to the viscosity. One is directly connected to the repulsive interaction potential, while the second one is directly connected to the attractive interaction that contributes indirectly, through the formation of aggregates. The results are compatible with those previously obtained by light-scattering measurements that gives clear evidence of the presence of a large structural order at the glass transition.

D. Majolino; F. Mallamace; S. Venuto; N. Micali

1990-12-15T23:59:59.000Z

100

Effective Two-Nucleon Interaction in Asymmetric Nuclear Matter  

Science Journals Connector (OSTI)

......Two-Nucleon Interaction in Asymmetric Nuclear Matter Shigeru Nishizaki Tatsuyuki...central force type in asymmetric nuclear matter is constructed. It...alpha-dependence of the potential energy is also discussed. Citing...Properties of Hot Asymmetric Nuclear Matter Shigeru Nishizaki......

Shigeru Nishizaki; Tatsuyuki Takatsuka; Naohiro Yahagi; Jun Hiura

1991-10-01T23:59:59.000Z

Note: This page contains sample records for the topic "hot dense matter" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


101

When matter matters  

SciTech Connect (OSTI)

We study a recently proposed scenario for the early universe:Subluminal Galilean Genesis. We prove that without any other matter present in the spatially flat Friedmann universe, the perturbations of the Galileon scalar field propagate with a speed at most equal to the speed of light. This proof applies to all cosmological solutions — to the whole phase space. However, in a more realistic situation, when one includes any matter which is not directly coupled to the Galileon, there always exists a region of phase space where these perturbations propagate superluminally, indeed with arbitrarily high speed. We illustrate our analytic proof with numerical computations. We discuss the implications of this result for the possible UV completion of the model.

Easson, Damien A. [Department of Physics and School of Earth and Space Exploration and Beyond Center, Arizona State University, Tempe, AZ, 85287-1504 (United States); Sawicki, Ignacy [Institut für Theoretische Physik, Ruprecht-Karls-Universität Heidelberg Philosophenweg 16, 69120 Heidelberg (Germany); Vikman, Alexander, E-mail: easson@asu.edu, E-mail: ignacy.sawicki@uni-heidelberg.de, E-mail: alexander.vikman@cern.ch [CERN, Theory Division, CH-1211 Genève 23 (Switzerland)

2013-07-01T23:59:59.000Z

102

Computer Simulations Indicate Calcium Carbonate Has a Dense Liquid...  

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

Computer Simulations Indicate Calcium Carbonate Has a Dense Liquid Phase Computer Simulations Indicate Calcium Carbonate Has a Dense Liquid Phase Berkeley Lab research could help...

103

Hydrated sulphuric acid in dense molecular clouds  

Science Journals Connector (OSTI)

......anthropogenically from combustion of fuels. Oxidized...forms readily in hydrocarbon combustion where sulphur is...dense clouds. From heat of vaporization...3 Observational Data Absorption spectra...peak absorption data in mum (cm1) for......

Flavio Scappini; Cesare Cecchi-Pestellini; Harvey Smith; William Klemperer; Alexander Dalgarno

2003-05-11T23:59:59.000Z

104

Development and Benchmarking of a Hybrid PIC Code For Dense Plasmas and Fast Ignition  

SciTech Connect (OSTI)

Radiation processes play an important role in the study of both fast ignition and other inertial confinement schemes, such as plasma jet driven magneto-inertial fusion, both in their effect on energy balance, and in generating diagnostic signals. In the latter case, warm and hot dense matter may be produced by the convergence of a plasma shell formed by the merging of an assembly of high Mach number plasma jets. This innovative approach has the potential advantage of creating matter of high energy densities in voluminous amount compared with high power lasers or particle beams. An important application of this technology is as a plasma liner for the flux compression of magnetized plasma to create ultra-high magnetic fields and burning plasmas. HyperV Technologies Corp. has been developing plasma jet accelerator technology in both coaxial and linear railgun geometries to produce plasma jets of sufficient mass, density, and velocity to create such imploding plasma liners. An enabling tool for the development of this technology is the ability to model the plasma dynamics, not only in the accelerators themselves, but also in the resulting magnetized target plasma and within the merging/interacting plasma jets during transport to the target. Welch pioneered numerical modeling of such plasmas (including for fast ignition) using the LSP simulation code. Lsp is an electromagnetic, parallelized, plasma simulation code under development since 1995. It has a number of innovative features making it uniquely suitable for modeling high energy density plasmas including a hybrid fluid model for electrons that allows electrons in dense plasmas to be modeled with a kinetic or fluid treatment as appropriate. In addition to in-house use at Voss Scientific, several groups carrying out research in Fast Ignition (LLNL, SNL, UCSD, AWE (UK), and Imperial College (UK)) also use LSP. A collaborative team consisting of HyperV Technologies Corp., Voss Scientific LLC, FAR-TECH, Inc., Prism Computational Sciences, Inc. and Advanced Energy Systems Inc. joined efforts to develop new physics and numerical models for LSP in several key areas to enhance the ability of LSP to model high energy density plasmas (HEDP). This final report details those efforts. Areas addressed in this research effort include: adding radiation transport to LSP, first in 2D and then fully 3D, extending the EMHD model to 3D, implementing more advanced radiation and electrode plasma boundary conditions, and installing more efficient implicit numerical algorithms to speed complex 2-D and 3-D computations. The new capabilities allow modeling of the dominant processes in high energy density plasmas, and further assist the development and optimization of plasma jet accelerators, with particular attention to MHD instabilities and plasma/wall interaction (based on physical models for ion drag friction and ablation/erosion of the electrodes). In the first funding cycle we implemented a solver for the radiation diffusion equation. To solve this equation in 2-D, we used finite-differencing and applied the parallelized sparse-matrix solvers in the PETSc library (Argonne National Laboratory) to the resulting system of equations. A database of the necessary coefficients for materials of interest was assembled using the PROPACEOS and ATBASE codes from Prism. The model was benchmarked against Prism's 1-D radiation hydrodynamics code HELIOS, and against experimental data obtained from HyperV's separately funded plasma jet accelerator development program. Work in the second funding cycle focused on extending the radiation diffusion model to full 3-D, continued development of the EMHD model, optimizing the direct-implicit model to speed up calculations, add in multiply ionized atoms, and improved the way boundary conditions are handled in LSP. These new LSP capabilities were then used, along with analytic calculations and Mach2 runs, to investigate plasma jet merging, plasma detachment and transport, restrike and advanced jet accelerator design. In addition, a strong linkage to diagnostic measureme

Witherspoon, F. Douglas [HyperV Technologies Corp.; Welch, Dale R. [Voss Scientific, LLC; Thompson, John R. [FAR-TECH, Inc.; MacFarlane, Joeseph J. [Prism Computational Sciences Inc.; Phillips, Michael W. [Advanced Energy Systems, Inc.; Bruner, Nicki [Voss Scientific, LLC; Mostrom, Chris [Voss Scientific, LLC; Thoma, Carsten [Voss Scientific, LLC; Clark, R. E. [Voss Scientific, LLC; Bogatu, Nick [FAR-TECH, Inc.; Kim, Jin-Soo [FAR-TECH, Inc.; Galkin, Sergei [FAR-TECH, Inc.; Golovkin, Igor E. [Prism Computational Sciences, Inc.; Woodruff, P. R. [Prism Computational Sciences, Inc.; Wu, Linchun [HyperV Technologies Corp.; Messer, Sarah J. [HyperV Technologies Corp.

2014-05-20T23:59:59.000Z

105

Particulate hot gas stream cleanup technical issues  

SciTech Connect (OSTI)

The analyses of hot gas stream cleanup particulate samples and descriptions of filter performance studied under this contract were designed to address problems with filter operation that have been linked to characteristics of the collected particulate matter. One objective of this work was to generate an interactive, computerized data bank of the key physical and chemical characteristics of ash and char collected from operating advanced particle filters and to relate these characteristics to the operation and performance of these filters. The interactive data bank summarizes analyses of over 160 ash and char samples from fifteen pressurized fluidized-bed combustion and gasification facilities utilizing high-temperature, high pressure barrier filters.

Pontius, D.H.; Snyder, T.R.

1999-09-30T23:59:59.000Z

106

Cornell University Hot Water Report  

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

Hot Water System Hot Water System The production and delivery of hot water in the CUSD home is technologically advanced, economical, and simple. Hot water is produced primarily by the evacuated solar thermal tube collectors on the roof of the house. The solar thermal tube array was sized to take care of the majority of our heating and hot water needs throughout the course of the year in the Washington, DC climate. The solar thermal tube array also provides heating to the radiant floor. The hot water and radiant floor systems are tied independently to the solar thermal tube array, preventing the radiant floor from robbing the water heater of much needed thermal energy. In case the solar thermal tubes are not able to provide hot water to our system, the hot water tank contains an electric heating

107

Clusters in nuclear matter and Mott points  

E-Print Network [OSTI]

Light clusters (mass number $A \\leq 4$) in nuclear matter at subsaturation densities are described using a quantum statistical approach. In addition to self-energy and Pauli-blocking, effects of continuum correlations are taken into account to calculate the quasiparticle properties and abundances of light elements. Medium-modified quasiparticle properties are important ingredients to derive a nuclear matter equation of state applicable in the entire region of warm dense matter below saturation density. The influence of the nucleon-nucleon interaction on the quasiparticle shift is discussed.

Röpke, G

2015-01-01T23:59:59.000Z

108

Characteristics of the Dense Plasma Focus Discharge  

Science Journals Connector (OSTI)

The dense plasma focus discharge is produced in a hydromagnetic coaxial plasma accelerator. The final heating and compression of the plasma is accomplished by a partial conversion of the stored magnetic energy residing in the region behind the current sheath to plasma energy. The electrical behavior of the discharge is examined to determine the fraction of the initial energy involved in mechanical sheath motion inductive storage in the accelerator and Ohmic losses associated with the external and plasma discharge. Many analysis of this kind of datum show no definite correlation between the energy converted and neutron production. Presumably this arises from a lack of information as to how the collapse uses this energy and to the amount of plasma ejected from the dense plasma region during the collapse. From soft x?ray pinhole and Schlieren photographs the collapse and the development of the dense plasma is unquestionably a two?dimensional pinch compression.

Joseph W. Mather; Paul J. Bottoms

1968-01-01T23:59:59.000Z

109

What do elliptic flow measurements tell us about the matter created in the little Bang at RHIC?  

E-Print Network [OSTI]

Elliptic flow measurements are presented and discussed with emphasis on the hydrodynamic character of the hot and dense QCD matter created in heavy ion collisions at RHIC. Predictions from perfect fluid hydrodynamics for the scaling of the elliptic flow coefficient $v_2$ with eccentricity, system size and transverse energy are validated. A universal scaling for the flow of both mesons and baryons is observed for a broad transverse kinetic energy range when quark number scaling is employed. This suggests a new state of nuclear matter at extremely high density and temperature whose primary constituents have the quantum numbers of quarks and anti-quarks in chemical equilibrium. The scaled flow is used to constrain estimates for several transport coefficients including the sound speed $c_s$, shear viscosity to entropy ratio $\\eta/s$, diffusion coefficient ($D_c$) and sound attenuation length ($\\Gamma$). The estimated value $\\eta/s \\sim 0.1$, is close to the absolute lower bound ($1/4\\pi$), and may signal thermodynamic trajectories for the decaying matter which lie close to the QCD critical end point.

Roy A. Lacey; Arkadij Taranenko

2006-10-19T23:59:59.000Z

110

D matter  

Science Journals Connector (OSTI)

We study the properties and phenomenology of particlelike states originating from D branes whose spatial dimensions are all compactified. They are nonperturbative states in string theory and we refer to them as D matter. In contrast to other nonperturbative objects such as ’t Hooft–Polyakov monopoles, D-matter states could have perturbative couplings among themselves and with ordinary matter. The lightest D particle (LDP) could be stable because it is the lightest state carrying certain (integer or discrete) quantum numbers. Depending on the string scale, they could be cold dark matter candidates with properties similar to that of WIMPs or wimpzillas. The spectrum of excited states of D matter exhibits an interesting pattern which could be distinguished from that of Kaluza-Klein modes, winding states, and string resonances. We speculate about possible signatures of D matter from ultrahigh energy cosmic rays and colliders.

Gary Shiu and Lian-Tao Wang

2004-06-29T23:59:59.000Z

111

Hot Springs | Open Energy Information  

Open Energy Info (EERE)

Springs Springs Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Print PDF Hot Springs Dictionary.png Hot Springs: A naturally occurring spring of hot water, heated by geothermal processes in the subsurface, and typically having a temperature greater than 37°C. Other definitions:Wikipedia Reegle Modern Geothermal Features Typical list of modern geothermal features Hot Springs Fumaroles Warm or Steaming Ground Mudpots, Mud Pools, or Mud Volcanoes Geysers Blind Geothermal System Mammoth Hot Springs at Yellowstone National Park (reference: http://www.hsd3.org/HighSchool/Teachers/MATTIXS/Mattix%20homepage/studentwork/Laura%20Cornelisse%27s%20Web%20Page/Yellowstone%20National%20Park.htm) Hot springs occur where geothermally heated waters naturally flow out of the surface of the Earth. Hot springs may deposit minerals and spectacular

112

Dark Matters  

ScienceCinema (OSTI)

One of the greatest mysteries in the cosmos is that it is mostly dark.  Astronomers and particle physicists today are seeking to unravel the nature of this mysterious, but pervasive dark matter which has profoundly influenced the formation of structure in the universe.  I will describe the complex interplay between galaxy formation and dark matter detectability and review recent attempts to measure particle dark matter by direct and indirect means.

Joseph Silk

2010-01-08T23:59:59.000Z

113

The Application of Intense Ion Beams to the Creation of Hot Dense Plasmas [and Discussion  

Science Journals Connector (OSTI)

...small targets. Emphasis is placed throughout on the use of ion beams for heating targets of deuterium-tritium mixtures to thermonuclear ignition. It is probably true to claim that calculation of energy-range relations for energetic ions in cold materials...

1981-01-01T23:59:59.000Z

114

Evidence of a liquid–liquid phase transition in hot dense hydrogen  

Science Journals Connector (OSTI)

...reflection, as the small mirror of the Schwarzschild objective substantially blocks...Attenuater Nd:Yag Mirror Reflecting >99% Nd-vanadate...pulsed Laser 1064 nm YAG mirror Beam Dumps Video CCD...illuminates sample; 7, Schwarzschild objective. BS is a...

Vasily Dzyabura; Mohamed Zaghoo; Isaac F. Silvera

2013-01-01T23:59:59.000Z

115

Dense colloidal fluids form denser amorphous sediments  

E-Print Network [OSTI]

Dense colloidal fluids form denser amorphous sediments Shir R. Libera,b , Shai Borohovicha of their randomly packed solid sediments. We demonstrate that the most dilute fluids of colloidal hard spheres form loosely packed sediments, where the volume fraction of the particles approaches in frictional systems

Schofield, Andrew B.

116

Dense high temperature ceramic oxide superconductors  

DOE Patents [OSTI]

Dense superconducting ceramic oxide articles of manufacture and methods for producing these articles are described. Generally these articles are produced by first processing these superconducting oxides by ceramic processing techniques to optimize materials properties, followed by reestablishing the superconducting state in a desired portion of the ceramic oxide composite.

Landingham, Richard L. (Livermore, CA)

1993-01-01T23:59:59.000Z

117

Neutron emission studies in dense plasma focus  

Science Journals Connector (OSTI)

Neutron emission studies in dense plasma focus under low pressure and high pressure operation has been carried out. Parametric studies of dynamic behavior of plasma focus also has been made by means of laser holographic interferometry nuclear activation methods and neutron T. O. F detection including pinhole camera. Experimental result was compared with the z?pinch.

M. Yokoyama; Y. Kitagawa; Y. Yamada

1989-01-01T23:59:59.000Z

118

Dark matter  

Science Journals Connector (OSTI)

...just how much dark matter in baryons...have lead to the discovery that a large component of the dark mass in groups...the highest-energy photons and the...to that of the discovery of the microwave...experiments assume the dark matter in the...c) Vacuum energy and the cosmological...

1999-01-01T23:59:59.000Z

119

Hot Springs, Virginia  

SciTech Connect (OSTI)

Three major springs are located in the Warm Springs Valley of the Allegheny Mountains in western Virginia along US route 220--the Warm, Hot and Healing--all now owned by Virginia Hot Springs, Inc. The Homestead, a large and historic luxurious resort, is located at Hot Springs. The odorless mineral water used at The Homestead spa flows from several springs at temperatures ranging from 39{degrees}C to 41{degrees}C (102{degrees} to 106{degrees}F) (Loam and Gersh, 1992). It is piped to individual, one-person bathtubs in separate men`s and women`s bathhouses, where is is mixed to provide an ideal temperature of 40{degrees}C (104{degrees}F). Tubs are drained and refilled after each use so that no chemical treatment is necessary. Mineral water from the same springs is used in an indoor swimming pool maintained at 29{degrees}C (84{degrees}F), and an outdoor swimming pool maintained at 22{degrees}C (72{degrees}F). Eight kilometers (5 miles) away to the northeast, but still within the 6,000-ha (15,000-acre) Homestead property, are the Warm Springs, which flow at 36{degrees}C (96{degrees}F). The rate of discharge is so great, 63 L/s (1000 gpm) (Muffler, 1979) that the two large Warm Springs pools, in separate men`s and women`s buildings, maintain the temperature on a flow-through basis requiring no chemical treatment. The men`s pool was designed by Thomas Jefferson and opened in 1761; the ladies` pool was opened in 1836. The adjacent {open_quotes}drinking spring{close_quotes} and the two covered pools have been preserved in their original condition.

Lund, J.W.

1996-05-01T23:59:59.000Z

120

Dark energy and dark matter from cosmological observations  

E-Print Network [OSTI]

The present status of our knowledge about the dark matter and dark energy is reviewed. Bounds on the content of cold and hot dark matter from cosmological observations are discussed in some detail. I also review current bounds on the physical properties of dark energy, mainly its equation of state and effective speed of sound.

Steen Hannestad

2005-09-13T23:59:59.000Z

Note: This page contains sample records for the topic "hot dense matter" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


121

Coping with Hot Work Environments  

E-Print Network [OSTI]

E-340 04/05 Many Texans work under hot, humid conditions. Summer heat is a particular hazard to agricultural pro- ducers who work long hours under the sun. However, other people working in hot yards, gardens, kitchens or industry jobs are also... evaporation. Wiping sweat from the skin with a cloth also prevents cooling from evaporation. In hot, humid conditions, hard work becomes harder. The sweat glands release moisture and essential David W. Smith, Extension Safety Program The Texas A&M...

Smith, David

2005-04-28T23:59:59.000Z

122

WARM EXTENDED DENSE GAS AT THE HEART OF A COLD COLLAPSING DENSE CORE  

SciTech Connect (OSTI)

In order to investigate when and how the birth of a protostellar core occurs, we made survey observations of four well-studied dense cores in the Taurus molecular cloud using CO transitions in submillimeter bands. We report here the detection of unexpectedly warm (approx30-70 K), extended (radius of approx2400 AU), dense (a few times 10{sup 5} cm{sup -3}) gas at the heart of one of the dense cores, L1521F (MC27), within the cold dynamically collapsing components. We argue that the detected warm, extended, dense gas may originate from shock regions caused by collisions between the dynamically collapsing components and outflowing/rotating components within the dense core. We propose a new stage of star formation, 'warm-in-cold core stage (WICCS)', i.e., the cold collapsing envelope encases the warm extended dense gas at the center due to the formation of a protostellar core. WICCS would constitute a missing link in evolution between a cold quiescent starless core and a young protostar in class 0 stage that has a large-scale bipolar outflow.

Shinnaga, Hiroko; Phillips, Thomas G. [California Institute of Technology Submillimeter Observatory (CSO), 111 Nowelo Street, Hilo, HI 96720 (United States); Furuya, Ray S. [Subaru Telescope, National Astronomical Observatory of Japan, 650 North A'ohoku Place, Hilo, HI 96720 (United States); Kitamura, Yoshimi, E-mail: shinnaga@submm.caltech.ed, E-mail: tgp@submm.caltech.ed, E-mail: rsf@subaru.naoj.or, E-mail: kitamura@isas.jaxa.j [Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, 3-1-1 Yoshinodai, Sagamihara, Kanagawa 229-8510 (Japan)

2009-12-01T23:59:59.000Z

123

Energy savings through hot pressing  

SciTech Connect (OSTI)

Theoretical considerations indicate that the hot-pressing process can provide energy savings. Several selected results demonstrate that, under favorable conditions, practical results exceed theoretical predictions.

Cutshall, K.

1988-04-01T23:59:59.000Z

124

Nuclear matter to strange matter transition in holographic QCD  

E-Print Network [OSTI]

We construct a simple holographic QCD model to study nuclear matter to strange matter transition. The interaction of dense medium and hadrons is taken care of by imposing the force balancing condition for stable D4/D6/D6 configuration. By considering the intermediate and light flavor branes interacting with baryon vertex homogeneously distributed along R^3 space and requesting the energy minimization, we find that there is a well defined transition density as a function of current quark mass. We also find that as density goes up very high, intermediate (or heavy) and light quarks populate equally as expected from the Pauli principle. In this sense, the effect of the Pauli principle is realized as dynamics of D-branes.

Youngman Kim; Yunseok Seo; Sang-Jin Sin

2009-11-19T23:59:59.000Z

125

Ultra-Efficient and Power-Dense Electric Motors | Department...  

Energy Savers [EERE]

Ultra-Efficient and Power-Dense Electric Motors Ultra-Efficient and Power-Dense Electric Motors electricmotors.pdf More Documents & Publications Advance Patent Waiver W(A)2009-030...

126

Dilepton production from resonance scattering in hot hadronic matter  

E-Print Network [OSTI]

resonance appears in the extended phase space. For the reaction pi+rho-->l(+)+l(-) , the finite rho meson width extends the invariant mass below the omega-meson mass, so a peak at the omega-meson mass is seen in the dilepton spectrum. Similarly, a rho...

Song, C.; Ko, Che Ming.

1996-01-01T23:59:59.000Z

127

Carbon dioxide remediation via oxygen-enriched combustion using dense ceramic membranes  

DOE Patents [OSTI]

A method of combusting pulverized coal by mixing the pulverized coal and an oxidant gas to provide a pulverized coal-oxidant gas mixture and contacting the pulverized coal-oxidant gas mixture with a flame sufficiently hot to combust the mixture. An oxygen-containing gas is passed in contact with a dense ceramic membrane of metal oxide material having electron conductivity and oxygen ion conductivity that is gas-impervious until the oxygen concentration on one side of the membrane is not less than about 30% by volume. An oxidant gas with an oxygen concentration of not less than about 30% by volume and a CO.sub.2 concentration of not less than about 30% by volume and pulverized coal is contacted with a flame sufficiently hot to combust the mixture to produce heat and a flue gas. One dense ceramic membrane disclosed is selected from the group consisting of materials having formulae SrCo.sub.0.8 Fe.sub.0.2 O.sub.x, SrCo.sub.0.5 FeO.sub.x and La.sub.0.2 Sr.sub.0.8 Co.sub.0.4 Fe.sub.0.6 O.sub.x.

Balachandran, Uthamalingam (Hinsdale, IL); Bose, Arun C. (Pittsburgh, PA); McIlvried, Howard G. (Pittsburgh, PA)

2001-01-01T23:59:59.000Z

128

Deposition of nanolayers by means of dense plasma focus  

Science Journals Connector (OSTI)

In our preliminary experiments, reported in this paper, dense plasma focus (DPF) device is used for deposition...

M. Chernyshova; I. Ivanova-Stanik; L. Karpi?ski…

2006-10-01T23:59:59.000Z

129

Quark Matter  

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

Quark Quark Matter in Neutron Stars Prashanth Jaikumar Argonne National Laboratory, (PHY) September 7th, 2006 . - p.1/29 Outline * Neutron stars: observations by a theorist . - p.2/29 Outline * Neutron stars: observations by a theorist * Mass-Radius constraints on Equation of State (EoS) . - p.2/29 Outline * Neutron stars: observations by a theorist * Mass-Radius constraints on Equation of State (EoS) * Is quark matter inside neutron stars ruled out? . - p.2/29 Outline * Neutron stars: observations by a theorist * Mass-Radius constraints on Equation of State (EoS) * Is quark matter inside neutron stars ruled out? ------------------------ * Strange Quark stars: Features and "Findings" . - p.2/29 Outline * Neutron stars: observations by a theorist * Mass-Radius constraints on Equation of State (EoS) * Is quark matter inside neutron stars ruled out? ------------------------

130

Structures for dense, crack free thin films  

DOE Patents [OSTI]

The process described herein provides a simple and cost effective method for making crack free, high density thin ceramic film. The steps involve depositing a layer of a ceramic material on a porous or dense substrate. The deposited layer is compacted and then the resultant laminate is sintered to achieve a higher density than would have been possible without the pre-firing compaction step.

Jacobson, Craig P. (Lafayette, CA); Visco, Steven J. (Berkeley, CA); De Jonghe, Lutgard C. (Lafayette, CA)

2011-03-08T23:59:59.000Z

131

Shear dispersion in dense granular flows  

E-Print Network [OSTI]

We formulate and solve a model problem of dispersion of dense granular materials in rapid shear flow down an incline. The effective dispersivity of the depth-averaged concentration of the dispersing powder is shown to vary as the P\\'eclet number squared, as in classical Taylor--Aris dispersion of molecular solutes. An extensions to generic shear profiles is presented, and possible applications to industrial and geological granular flows are noted.

Christov, Ivan C

2014-01-01T23:59:59.000Z

132

Screening masses in thermal and dense medium  

E-Print Network [OSTI]

Screening masses of different hadronic states are studied in thermal and dense medium on lattice. It has been found that screening masses increase with the temperature. In deconfinement phase, chemical potential enhances the screening masses. We use the normalization with respect to lowest Matsubara frequency to characterize dissolving of hadronic bound states at high temperatures. It has been found that different hadronic states have different dissolving temperatures and their survivals are considerably improved at finite chemical potentials.

A. Tawfik

2006-05-29T23:59:59.000Z

133

Electrical Conductivity of a Dense Plasma  

Science Journals Connector (OSTI)

The ac electrical conductivity of a dense plasma is studied by use of reflectivity measurements on the rear surface of a laser-irradiated planar target. The results show general agreement with theory in which a minimum collision mean free path is assumed, yielding correspondingly a minimum conductivity. However, the results also suggest that the minimum mean free path is greater than the interatomic radius.

A. Ng, D. Parfeniuk, P. Celliers, L. DaSilva, R. M. More, and Y. T. Lee

1986-09-29T23:59:59.000Z

134

Hot hollow cathode gun assembly  

DOE Patents [OSTI]

A hot hollow cathode deposition gun assembly includes a hollow body having a cylindrical outer surface and an end plate for holding an adjustable heat sink, the hot hollow cathode gun, two magnets for steering the plasma from the gun into a crucible on the heat sink, and a shutter for selectively covering and uncovering the crucible.

Zeren, J.D.

1983-11-22T23:59:59.000Z

135

Hadronic matter and rapidly rotating compact stars  

SciTech Connect (OSTI)

In part one of this paper the authors review the present status of neutron star matter calculations, and introduce a representative collection of realistic nuclear equations of state which are derived for different assumptions about the physical behavior of dense matter (baryon populations, pion condensation, possible transition of baryon matter to quark matter). Part two deals with the theoretical determination of the minimum possible rotational periods of neutron stars, performed in the framework of general relativity, whose knowledge serves to distinguish between pulsars that can be understood as rotating neutron stars and those that cannot. Likely candidates for the latter are hypothetical strange stars. Their properties are discussed in the third part of this contribution.

Weber, F.; Kettner, C. [Univ. of Munich (Germany). Inst. for Theoretical Physics; Glendenning, N.K. [Lawrence Berkeley Lab., CA (United States). Nuclear Science Div.

1994-03-01T23:59:59.000Z

136

Electrical conductivity of dense metal plasmas  

Science Journals Connector (OSTI)

The composition of dense metal plasmas is calculated considering higher ionization stages of the atoms. A system of coupled mass action laws is solved self-consistently taking into account medium corrections which lead to pressure ionization at high densities. The electrical conductivity is calculated within linear response theory. The interactions between the various species are treated on T matrix level. The numerical results for the electrical conductivity are in reasonable agreement with new experimental data for nonideal Al and Cu plasmas. Comparison with other theories is performed.

Ronald Redmer

1999-01-01T23:59:59.000Z

137

Dense plasma properties from shock wave experiments  

Science Journals Connector (OSTI)

A review is presented of the novel experimental results of investigation of physical properties of the coupled dense plasmas generated as a result of shock compression up to megabar pressure range. High-energy plasma states were generated by single and multiple shock compression. The highly time-resolved diagnostics permit us to measure thermodynamical, electrophysical and optical properties of high pressure condensed plasmas in the broad phase diagram region—from the compressed condensed solid state up to the low density gas range, including strongly coupled plasma and metal–insulator transition regions.

V B Mintsev; V E Fortov

2006-01-01T23:59:59.000Z

138

Dynamics of Kr in dense clathrate hydrates  

Science Journals Connector (OSTI)

The dynamics of Kr atoms as guests in dense clathrate hydrate structures are investigated using site specific Kr83 nuclear resonant inelastic x-ray scattering (NRIXS) spectroscopy in combination with molecular dynamics simulations. The dense structure H hydrate and filled-ice structures are studied at high pressures in a diamond anvil high-pressure cell. The dynamics of Kr in the structure H clathrate hydrate quench recovered at 77 K is also investigated. The Kr phonon density of states obtained from the experimental NRIXS data are compared with molecular dynamics simulations. The temperature and pressure dependence of the phonon spectra provide details of the Kr dynamics in the clathrate hydrate cages. Comparison with the dynamics of Kr atoms in the low-pressure structure II obtained previously was made. The Lamb-Mossbauer factor obtained from NRIXS experiments and molecular dynamics calculations are in excellent agreement and are shown to yield unique information on the strength and temperature dependence of guest-host interactions.

D. D. Klug; J. S. Tse; J. Y. Zhao; W. Sturhahn; E. E. Alp; C. A. Tulk

2011-05-25T23:59:59.000Z

139

Solids flow rate measurement in dense slurries  

SciTech Connect (OSTI)

Accurate and rapid flow rate measurement of solids in dense slurries remains an unsolved technical problem, with important industrial applications in chemical processing plants and long-distance solids conveyance. In a hostile two-phase medium, such a measurement calls for two independent parameter determinations, both by non-intrusive means. Typically, dense slurries tend to flow in laminar, non-Newtonian mode, eliminating most conventional means that usually rely on calibration (which becomes more difficult and costly for high pressure and temperature media). These issues are reviewed, and specific solutions are recommended in this report. Detailed calculations that lead to improved measuring device designs are presented for both bulk density and average velocity measurements. Cross-correlation, chosen here for the latter task, has long been too inaccurate for practical applications. The cause and the cure of this deficiency are discussed using theory-supported modeling. Fluid Mechanics are used to develop the velocity profiles of laminar non-Newtonian flow in a rectangular duct. This geometry uniquely allows the design of highly accurate `capacitive` devices and also lends itself to gamma transmission densitometry on an absolute basis. An absolute readout, though of less accuracy, is also available from a capacitive densitometer and a pair of capacitive sensors yields signals suitable for cross-correlation velocity measurement.

Porges, K.G.; Doss, E.D.

1993-09-01T23:59:59.000Z

140

NREL: Learning - Solar Hot Water  

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

Hot Water Hot Water Photo of solar collectors on a roof for a solar hot water system. For solar hot water systems, flat-plate solar collectors are typically installed facing south on a rooftop. The shallow water of a lake is usually warmer than the deep water. That's because the sunlight can heat the lake bottom in the shallow areas, which in turn, heats the water. It's nature's way of solar water heating. The sun can be used in basically the same way to heat water used in buildings and swimming pools. Most solar water heating systems for buildings have two main parts: a solar collector and a storage tank. The most common collector is called a flat-plate collector. Mounted on the roof, it consists of a thin, flat, rectangular box with a transparent cover that faces the sun. Small tubes

Note: This page contains sample records for the topic "hot dense matter" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


141

Hot carrier diffusion in graphene  

E-Print Network [OSTI]

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

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

2010-11-01T23:59:59.000Z

142

Hot Spot | Open Energy Information  

Open Energy Info (EERE)

Spot Dictionary.png Hot Spot: Anomalous volcanic regions that can occur within a tectonic plate and are thought to be caused by mantle plumes Other definitions:Wikipedia Reegle...

143

Disassembly of hot classical charged drops  

Science Journals Connector (OSTI)

The disassembly of hot classical charged drops containing ?230 and 130 particles is studied with the molecular dynamics method. The strength of the Coulomb repulsion is chosen so that these drops have a binding energy formula similar to that of nuclei. The phase diagram of neutral matter, obtained by switching off the Coulomb force, is also similar to that of nuclear matter. In addition to the total-vaporization, fragmentation, and evaporation modes of the disassembly of neutral drops, the charged drops also break by multiple and binary fission. The liquid-gas phase transition plays an important role in the multiple fission of expanding charged liquid drops. There also appears to be a window in the initial conditions in which binary fission followed by a density oscillation is the dominant mode of breakup. The multiple and binary fission breakups are due to the Coulomb forces, and they yield more massive clusters with relatively few small clusters with ?10 particles. The higher energy fragmentation and total vaporization modes are not significantly influenced by the Coulomb forces. They are primarily due to the liquid-gas transition, and their yields decrease almost monotonically with the number of particles in the cluster.

R. J. Lenk and V. R. Pandharipande

1986-07-01T23:59:59.000Z

144

Diquark condensation effects on hot quark star configurations  

E-Print Network [OSTI]

The equation of state for quark matter is derived for a nonlocal, chiral quark model within the mean field approximation. We investigate the effects of a variation of the form factors of the interaction on the phase diagram of quark matter under the condition of beta-equilibrium and charge neutrality. Special emphasis is on the occurrence of a diquark condensate which signals a phase transition to color superconductivity and its effects on the equation of state. We calculate the quark star configurations by solving the Tolman- Oppenheimer- Volkoff equations and obtain for the transition from a hot, normal quark matter core of a protoneutron star to a cool diquark condensed one a release of binding energy of the order of Delta M c^2 ~ 10^{53} erg. We discuss the claim that this energy could serve as an engine for explosive phenomena.

Blaschke, David B; Grigorian, H

2004-01-01T23:59:59.000Z

145

Magnetic properties of dense holographic QCD  

E-Print Network [OSTI]

We investigate the Sakai-Sugimoto model at nonzero baryon chemical potential in a background magnetic field both in the confined phase and in the deconfined phase with restored chiral symmetry. In this case the 8-brane Chern-Simons term becomes important. In the confined phase it generates a gradient of the pseudo-scalar "pion", which carries a non-vanishing baryon charge. Above a critical value of the chemical potential there is a second order phase transition to a mixed phase which includes also ordinary baryonic matter. However, at fixed baryon charge density the matter is purely "pion"-gradient above a critical magnetic field. In the deconfined chiral-symmetric phase at nonzero chemical potential the magnetic field induces an axial current. We also compute the magnetization of the baryonic matter and find that it is paramagnetic in all three phases but with nonlinear behavior at large magnetic field.

Oren Bergman; Gilad Lifschytz; Matthew Lippert

2008-06-02T23:59:59.000Z

146

Hot Pot Detail - Evidence of Quaternary Faulting  

SciTech Connect (OSTI)

Compilation of published data, field observations and photo interpretation relevant to Quaternary faulting at Hot Pot.

Lane, Michael

2013-06-27T23:59:59.000Z

147

Hot Pot Detail - Evidence of Quaternary Faulting  

DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

Compilation of published data, field observations and photo interpretation relevant to Quaternary faulting at Hot Pot.

Lane, Michael

148

Ammonia Capture in Porous Organic Polymers Densely Functionalized...  

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

Ammonia Capture in Porous Organic Polymers Densely Functionalized with Brnsted Acid Groups Previous Next List Jeffrey F. Van Humbeck, Thomas M. McDonald, Xiaofei Jing, Brian M....

149

LIMITATIONS ON MEASURING A TRANSVERSE PROFILE OF ULTRA- DENSE...  

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

LIMITATIONS ON MEASURING A TRANSVERSE PROFILE OF ULTRA- DENSE ELECTRON BEAMS WITH SCINTILLATORS A. Murokh * , J. Rosenzweig, University of California, Los Angeles, CA 90095-1547,...

150

Oxygen ion-conducting dense ceramic  

DOE Patents [OSTI]

Preparation, structure, and properties of mixed metal oxide compositions containing at least strontium, cobalt, iron and oxygen are described. The crystalline mixed metal oxide compositions of this invention have, for example, structure represented by Sr.sub..alpha. (Fe.sub.1-x Co.sub.x).sub..alpha.+.beta. O.sub..delta. where x is a number in a range from 0.01 to about 1, .alpha. is a number in a range from about 1 to about 4, .beta. is a number in a range upward from 0 to about 20, and .delta. is a number which renders the compound charge neutral, and wherein the composition has a non-perovskite structure. Use of the mixed metal oxides in dense ceramic membranes which exhibit oxygen ionic conductivity and selective oxygen separation, are described as well as their use in separation of oxygen from an oxygen-containing gaseous mixture.

Balachandran, Uthamalingam (Hinsdale, IL); Kleefisch, Mark S. (Naperville, IL); Kobylinski, Thaddeus P. (Lisle, IL); Morissette, Sherry L. (Las Cruces, NM); Pei, Shiyou (Naperville, IL)

1997-01-01T23:59:59.000Z

151

Oxygen ion-conducting dense ceramic  

DOE Patents [OSTI]

Preparation, structure, and properties of mixed metal oxide compositions containing at least strontium, cobalt, iron and oxygen are described. The crystalline mixed metal oxide compositions of this invention have, for example, structure represented by Sr.sub..alpha. (Fe.sub.1-x Co.sub.x).sub..alpha.+.beta. O.sub..delta. where x is a number in a range from 0.01 to about 1, .alpha. is a number in a range from about 1 to about 4, .beta. is a number in a range upward from 0 to about 20, and .delta. is a number which renders the compound charge neutral, and wherein the composition has a non-perovskite structure. Use of the mixed metal oxides in dense ceramic membranes which exhibit oxygen ionic conductivity and selective oxygen separation, are described as well as their use in separation of oxygen from an oxygen-containing gaseous mixture.

Balachandran, Uthamalingam (Hinsdale, IL); Kleefisch, Mark S. (Naperville, IL); Kobylinski, Thaddeus P. (Lisle, IL); Morissette, Sherry L. (Las Cruces, NM); Pei, Shiyou (Naperville, IL)

1996-01-01T23:59:59.000Z

152

Hydromagnetic Instabilities in the Dense Plasma Focus  

Science Journals Connector (OSTI)

Coaxial discharges of the Mather type owe their performance to the rapid collapse of a noncylindrical current sheath into a dense plasma focus. The lifetime of the resulting fountainlike pinch column appears to be governed by the formation of sausage instabilities; however typical estimates of the buildup time for m?=?0 hydromagnetic instabilities in cylindrical columns are at least 5–10 times shorter than the observed lifetimes (?50 nsec). In order to study the effect of pinch curvature a hydromagnetic stability analysis is performed in terms of the Bernstein energy principle expressed in curvilinear coordinates. A necessary stability condition for curved pinches with no axial magnetic fields turns out to be the presence of a delta?function current singularity on the axis in accordance with hard?core pinch measurements of Colgate. For noncylindrical axisymmetric pinches of finite curvature and large aspect ratio the m?=?0 instability is found to grow about 10 times slower than the corresponding cylindrical pinch case.

G. G. Comisar

1969-01-01T23:59:59.000Z

153

Ion Heating in the Dense Plasma Focus  

Science Journals Connector (OSTI)

The collapse phase of a dense plasma focus gun operating in deuterium was studied using streak photography and time resolved x?ray and neutron measuring techniques. The streak photographs showing the radial motion of the luminous front at various axial positions indicate a collapsing luminous front at the time of the current collapse followed by an expanding front and a recompression. The luminosity then disappears for a period of several hundred nanoseconds during which time the neutrons are emitted. Estimates of shock heating and magnetic compressional heating were made from the streak pictures and a calculation of plasma heating due to viscous forces arising from axial motion of the plasma was carried out. The effects of shock heating magnetic compressional heating and viscous heating are shown to be sufficient to produce an ion temperature of several kilovolts.

A. J. Toepfer; D. R. Smith; E. H. Beckner

1971-01-01T23:59:59.000Z

154

Nonlinear extraordinary wave in dense plasma  

SciTech Connect (OSTI)

Conditions for the propagation of a slow extraordinary wave in dense magnetized plasma are found. A solution to the set of relativistic hydrodynamic equations and Maxwell’s equations under the plasma resonance conditions, when the phase velocity of the nonlinear wave is equal to the speed of light, is obtained. The deviation of the wave frequency from the resonance frequency is accompanied by nonlinear longitudinal-transverse oscillations. It is shown that, in this case, the solution to the set of self-consistent equations obtained by averaging the initial equations over the period of high-frequency oscillations has the form of an envelope soliton. The possibility of excitation of a nonlinear wave in plasma by an external electromagnetic pulse is confirmed by numerical simulations.

Krasovitskiy, V. B., E-mail: krasovit@mail.ru [Russian Academy of Sciences, Keldysh Institute of Applied Mathematics (Russian Federation); Turikov, V. A. [Russian University of Peoples’ Friendship (Russian Federation)] [Russian University of Peoples’ Friendship (Russian Federation)

2013-10-15T23:59:59.000Z

155

The potential for dense phase pneumatic conveying on FBC`s  

SciTech Connect (OSTI)

Dense phase pneumatic conveying has many potential application areas on FBC`S. These include fuel feed, bed ash and sorbent handling. Also the conveying of ash from various parts of the boiler gas clean up system, either for reinjection to the boiler or conveying to storage. The materials being handled can be abrasive, hot and a wide range of particle sizes. Each application area must be considered and may require different types of equipment in each case to achieve economic reliable conveying. The paper describes the various forms of equipment that can be applied to each of the application areas, and explains the possibilities and limitations that exist in each case. Examples of working installations will be described.

Snowdon, B. [Clyde Pneumatic Conveying Ltd., Doncaster (United Kingdom)

1995-12-31T23:59:59.000Z

156

Prometheus Hot Leg Piping Concept  

SciTech Connect (OSTI)

The Naval Reactors Prime Contractor Team (NRPCT) recommended the development of a gas cooled reactor directly coupled to a Brayton energy conversion system as the Space Nuclear Power Plant (SNPP) for NASA's Project Prometheus. The section of piping between the reactor outlet and turbine inlet, designated as the hot leg piping, required unique design features to allow the use of a nickel superalloy rather than a refractory metal as the pressure boundary. The NRPCT evaluated a variety of hot leg piping concepts for performance relative to SNPP system parameters, manufacturability, material considerations, and comparison to past high temperature gas reactor (HTGR) practice. Manufacturability challenges and the impact of pressure drop and turbine entrance temperature reduction on cycle efficiency were discriminators between the piping concepts. This paper summarizes the NRPCT hot leg piping evaluation, presents the concept recommended, and summarizes developmental issues for the recommended concept.

Gribik, Anastasia M. [Bechtel Bettis, Inc., Bettis Atomic Power Laboratory, West Mifflin, PA 15122 (United States); DiLorenzo, Peter A. [KAPL, Inc., Knolls Atomic Power Laboratory, Schenectady, NY 12301 (United States)

2007-01-30T23:59:59.000Z

157

AVOIDING FAMILIES AND TUKEY FUNCTIONS ON THE NOWHERE DENSE IDEAL  

E-Print Network [OSTI]

AVOIDING FAMILIES AND TUKEY FUNCTIONS ON THE NOWHERE DENSE IDEAL SLAWOMIR SOLECKI AND STEVO TODORCEVIC Abstract. We investigate Tukey functions from the ideal of all closed nowhere dense subsets of 2N . In particular, we answer an old question of Isbell and Fremlin by showing that this ideal is not Tukey reducible

Solecki, Slawomir

158

Hot carrier diffusion in graphene  

Science Journals Connector (OSTI)

We report an optical study of charge transport in graphene. Diffusion of hot carriers in epitaxial graphene and reduced graphene-oxide samples are studied using an ultrafast pump-probe technique with a high spatial resolution. Spatiotemporal dynamics of hot carriers after a pointlike excitation are monitored. Carrier-diffusion coefficients of 11?000 and 5500?cm2?s?1 are measured in epitaxial graphene and reduced graphene-oxide samples, respectively, with a carrier temperature on the order of 3600 K. The demonstrated optical techniques can be used for noncontact and noninvasive in situ detection of transport properties of graphene.

Brian A. Ruzicka; Shuai Wang; Lalani K. Werake; Ben Weintrub; Kian Ping Loh; Hui Zhao

2010-11-08T23:59:59.000Z

159

Packing frustration in dense confined fluids  

E-Print Network [OSTI]

Packing frustration for confined fluids, i.e., the incompatibility between the preferred packing of the fluid particles and the packing constraints imposed by the confining surfaces, is studied for a dense hard-sphere fluid confined between planar hard surfaces at short separations. The detailed mechanism for the frustration is investigated via an analysis of the anisotropic pair distributions of the confined fluid, as obtained from integral equation theory for inhomogeneous fluids at pair correlation level within the anisotropic Percus-Yevick approximation. By examining the mean forces that arise from interparticle collisions around the periphery of each particle in the slit, we calculate the principal components of the mean force for the density profile - each component being the sum of collisional forces on a particle's hemisphere facing either surface. The variations of these components with the slit width give rise to rather intricate changes in the layer structure between the surfaces, but, as shown in this paper, the basis of these variations can be easily understood qualitatively and often also semi-quantitatively. It is found that the ordering of the fluid is in essence governed locally by the packing constraints at each single solid-fluid interface. A simple superposition of forces due to the presence of each surface gives surprisingly good estimates of the density profiles, but there remain nontrivial confinement effects that cannot be explained by superposition, most notably the magnitude of the excess adsorption of particles in the slit relative to bulk.

Kim Nygård; Sten Sarman; Roland Kjellander

2014-09-04T23:59:59.000Z

160

Solar Hot Water Market Development in Knoxville, TN | Department...  

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

Information Resources Solar Hot Water Market Development in Knoxville, TN Solar Hot Water Market Development in Knoxville, TN Assessment of local solar hot water markets, market...

Note: This page contains sample records for the topic "hot dense matter" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


161

SciTech Connect: Hot electron dynamics in graphene  

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

ThesisDissertation: Hot electron dynamics in graphene Citation Details In-Document Search Title: Hot electron dynamics in graphene Hot electron dynamics in graphene Graphene, a...

162

Commercial Solar Hot Water Financing Program  

Broader source: Energy.gov [DOE]

The Massachusetts Clean Energy Center (MassCEC) and Paradigm Partners are offering a solar hot water financing program in order to meet MassCEC's objective of growing the commercial solar hot water...

163

Solar Works in Seattle: Domestic Hot Water  

Broader source: Energy.gov [DOE]

Seattle's residential solar hot water workshop. Content also covers general solar resource assessment, siting, and financial incentives.

164

Low mass dimuon production with the ALICE muon spectrometer.  

E-Print Network [OSTI]

??Low mass vector meson (?, ?,? ) production provides key information on the hot and dense state of strongly interacting matter produced in high-energy heavy… (more)

Casula, Ester Anna Rita

2014-01-01T23:59:59.000Z

165

dist_hot_water.pdf  

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

District Hot Water Usage Form District Hot Water Usage Form 1999 Commercial Buildings Energy Consumption Survey (CBECS) 1. Timely submission of this report is mandatory under Public Law 93-275, as amended. 2. This completed questionnaire is due by 3. Data reported on this questionnaire are for the entire building identified in the label to the right. 4. Data may be submitted directly on this questionnaire or in any other format, such as a computer-generated listing, which provides the same i nformation and is conve nient for y our company. a. You may submit a single report for the entire building, or if it i s easier, a separate report for each of several accounts in the building. These will then be aggregated by the survey contractor. b. If you are concerned about your individual account information, you may c

166

NDCX-II, A New Induction Linear Accelerator for Warm Dense Matter Research  

E-Print Network [OSTI]

E. Gilson, R. Davidson, PPPL, Princeton, NJ 08543, U.S.A.Plasma Physics Laboratory (PPPL), is currently constructing

Leitner, M.

2009-01-01T23:59:59.000Z

167

Ferromagnetic neutron stars: axial anomaly, dense neutron matter, and pionic wall  

E-Print Network [OSTI]

We show that a chiral nonlinear sigma model coupled to degenerate neutrons exhibits a ferromagnetic phase at high density. The magnetization is due to the axial anomaly acting on the parallel layers of neutral pion domain walls spontaneously formed at high density. The emergent magnetic field would reach the QCD scale ~ 10^19 [G], which suggests that the quantum anomaly can be a microscopic origin of the magnetars (highly magnetized neutron stars).

Minoru Eto; Koji Hashimoto; Tetsuo Hatsuda

2012-09-21T23:59:59.000Z

168

Solenoid transport of a heavy ion beam for warm dense matter studies and inertial confinement fusion  

E-Print Network [OSTI]

1987. [20] CRC Handbook of Chemistry and Physics. 1964. [21]23] CRC Handbook of Chemistry and Physics, 86th edition.

Armijo, Julien

2006-01-01T23:59:59.000Z

169

Progress in Beam Focusing and Compression for Target Heating and Warm Dense Matter Experiments  

E-Print Network [OSTI]

plasma and the plasma in the final focus solenoid, whichplasma forms a thin column of diameter ~5 mm along the solenoid axis when the Final Focus

Seidl, Peter

2009-01-01T23:59:59.000Z

170

Helium gap in the warm dense matter regime and experimental reflectivity measurements  

Science Journals Connector (OSTI)

We revisit the reflectivity measurements of Celliers et al. [P. M. Celliers, P. Loubeyre, J. H. Eggert, S. Brygoo, R. S. McWilliams, D. G. Hicks, T. R. Boehly, R. Jeanloz, and G. W. Collins, Phys. Rev. Lett. 104, 184503 (2010)] for He at high density by taking into account a temperature dependence, based on existing ab initio calculations, in the functional form of the gap energy inferred from these data. We show that, when accounting for such a temperature dependence, the predicted behavior of the gap energy at high density differs significantly from the one suggested by Celliers et al. and that He is predicted to become metallic (gap closure) at much higher densities, around 10 g/cm3. High-pressure experiments over a larger temperature and density range are mandatory to correctly determine this gap behavior, a problem of crucial importance for astrophysical applications.

F. Soubiran, S. Mazevet, C. Winisdoerffer, and G. Chabrier

2012-09-04T23:59:59.000Z

171

The physics of dense nuclear matter from supernovae to quark gluon plasma  

Science Journals Connector (OSTI)

... 3, and the maximum mass would be the well-known Chandrasekhar limit of 1.4 solar masses (M©) (refs 12, 13). But neutron stars of up to ... p0 and exploding into non-interacting hadrons at p cycle is a sequence of shock compression, fireball, expansion and freezing out.

Reinhard Stock

1989-01-26T23:59:59.000Z

172

Dense Plasma in Z-pinches and the Plasma Focus  

Science Journals Connector (OSTI)

...experiments in controlled thermonuclear fusion research were Z-pinches...field pinch. But, at fusion temperatures and with...scaling law, but the thermonuclear origin of the neutrons...Z-pinch to attain dense fusion plasmas which might...

1981-01-01T23:59:59.000Z

173

Stochastic and deterministic models for dense granular flow  

E-Print Network [OSTI]

Granular materials such as sand or gravel surround us everyday and yet remain poorly understood. In this thesis, two models are developed for dense granular flow, each capable of predicting flows with accuracy in multiple ...

Kamrin, Kenneth Norman

2008-01-01T23:59:59.000Z

174

IR Spectra of Dense Xenon and Argon Plasmas  

Science Journals Connector (OSTI)

The results are presented of experimental studies of IR radiation spectra of dense Xe and Ar shock compressed plasmas. The radiation cutoff is found at the wavelength ??1?mThe experimental data are interpreted...

V. E. Fortov; M. U. Kulish; V. B. Mintsev; J. Ortner…

1992-01-01T23:59:59.000Z

175

SUPPORTED DENSE CERAMIC MEMBRANES FOR OXYGEN SEPARATION  

SciTech Connect (OSTI)

Mixed-conducting membranes have the ability to conduct oxygen with perfect selectivity at elevated temperatures, which makes them an extremely attractive alternative for oxygen separation and membrane reactor applications. The ability to reliably fabricate these membranes in thin or thick films would enable solid-state divisional limitations to be minimized, thus providing higher oxygen flux. Based on that motivation, the overall objective for this project is to develop and demonstrate a strategy for the fabrication of supported Wick film ceramic mixed conducting membranes, and improve the understanding of the fundamental issues associated with reliable fabrication of these membranes. The project has focused on the mixed-conducting ceramic composition SrCo{sub 0.5}FeO{sub x} because of its superior permeability and stability in reducing atmospheres. The fabrication strategy employed involves the deposition of SrCo{sub 0.5}FeO{sub x} thick films onto porous supports of the same composition. In the second year of this project, we completed characterization of the sintering and phase behavior of the porous SrCo{sub 0.5}FeO{sub x} supports, leading to a standard support fabrication methodology. Using a doctor blade method, pastes made from aerosol-derived SrCo{sub 0.5}FeO{sub x} powder dispersed with polyethylene glycol were applied to the supports, and the sintering behavior of the thick film membranes was examined in air and nitrogen atmospheres. It has been demonstrated that the desired crystalline phase content can be produced in the membranes, and that the material in the membrane layer can be highly densified without densifying the underlying support. However, considerable cracking and opening of the film occurred when films densified to a high extent. The addition of MgO into the SrCo{sub 0.5}FeO{sub x} supports was shown to inhibit support sintering so that temperatures up to 1300 C, where significant liquid formation occurs, could be used for film sintering. This successfully reduced cracking, however the films retained open porosity. The investigation of this concept will be continued in the final year of the project. Investigation of a metal organic chemical vapor deposition (MOCVD) method for defect mending in dense membranes was also initiated. An appropriate metal organic precursor (iron tetramethylheptanedionate) was identified whose deposition can be controlled by access to oxygen at temperatures in the 280-300 C range. Initial experiments have deposited iron oxide, but only on the membrane surface; thus refinement of this method will continue.

Timothy L. Ward

2000-06-30T23:59:59.000Z

176

Moisture Matters | EMSL  

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

Moisture Matters Moisture Matters Cryogenic microscopy methods yield insights to microbial morphology State-of-the-art cryogenic electron microscopy (EM) approaches at EMSL are...

177

Dark Matter Theory  

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

Dark Matter Theory Dark Matter Theory Understanding discoveries at the Energy, Intensity, and Cosmic Frontiers Get Expertise Rajan Gupta (505) 667-7664 Email Bruce Carlsten (505)...

178

HotSpot | Department of Energy  

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

HotSpot HotSpot HotSpot Current Central Registry Toolbox Version(s): 2.07.1 Code Owner: Department of Energy, Office of Emergency Operations and Lawrence Livermore National Laboratory (LLNL) Description: The HotSpot Health Physics Code is used for safety-analysis of DOE facilities handling nuclear material. Additionally, HotSpot provides emergency response personnel and emergency planners with a fast, field-portable set of software tools for evaluating incidents involving radioactive material. HotSpot provides a fast and usually conservative means for estimation of the radiation effects associated with atmospheric release of radioactive materials. The HotSpot atmospheric dispersion models are designed for near-surface releases, short-range (less than 10 km) dispersion, and short-term (less than 24 hours) release durations in

179

Hot Springs Metropolitan Planning Organization 2030 Long Range Transportation Plan  

E-Print Network [OSTI]

Hot Springs Area Metropolitan Planning Organization 100 Broadway Terrace Hot Springs, Arkansas 71901 Adopted November 3, 2005 HSA-MPO 2030 LRTPii Participating Agencies Garland County Hot... Spring County City of Hot Springs City of Mountain Pine Hot Springs Village The Greater Hot Springs Chamber of Commerce The Arkansas State Highway and Transportation Department In Cooperation With United States Department of Transportation...

Hot Springs Metropolitan Planning Organization

2005-11-03T23:59:59.000Z

180

Hot  

Office of Scientific and Technical Information (OSTI)

LLC. UMI Number: 1494695 ii DEDICATION I would like to dedicate this thesis to my advisor Joerg Schmailian, a great physicist and mentor. I've learned a lot from him, no...

Note: This page contains sample records for the topic "hot dense matter" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


181

Surface tension in the cold and dense chiral transition and astrophysical applications  

E-Print Network [OSTI]

The surface tension of cold and dense QCD phase transitions has appeared recently as a key ingredient in different astrophysical scenarios, ranging from core-colapse supernovae explosions to compact star structure. If the surface tension is low enough, observable consequences are possible. Its value is however not known from first-principle methods in QCD, calling for effective approaches. Working within the framework of homogeneous nucleation by Langer, we discuss the steps that are needed to obtain the nucleation parameters from a given effective potential. As a model for deriving the effective potential for the chiral transition, we adopt the linear sigma model with constituent quarks at very low temperatures, which provides an effective description for the thermodynamics of the strong interaction in cold and dense matter, and predict a surface tension of Sigma ~ 5--15 MeV/fm^2, well below previous estimates. Including temperature effects and vacuum logarithmic corrections, we find a clear competition between these features in characterizing the dynamics of the chiral phase conversion.

L. F. Palhares; E. S. Fraga

2011-07-08T23:59:59.000Z

182

Strange nuclear matter within Brueckner-Hartree-Fock Theory  

E-Print Network [OSTI]

We have developed a formalism for microscopic Brueckner-type calculations of dense nuclear matter that includes all types of baryon-baryon interactions and allows to treat any asymmetry on the fractions of the different species (n, p, $\\Lambda$, $\\Sigma^0$, $\\Sigma^+$, $\\Sigma^-$, $\\Xi^-$ and $\\Xi^0$). We present results for the different single-particle potentials focussing on situations that can be relevant in future microscopic studies of beta-stable neutron star matter with strangeness. We find the both the hyperon-nucleon and hyperon-hyperon interactions play a non-negligible role in determining the chemical potentials of the different species.

I. Vidana; A. Polls; A. Ramos; M. Hjorth-Jensen; V. G. J. Stoks

1999-09-09T23:59:59.000Z

183

Nuclear matter equation of state including few-nucleon correlations $(A\\leq 4)$  

E-Print Network [OSTI]

Light clusters (mass number $A \\leq 4$) in nuclear matter at subsaturation densities are described using a quantum statistical approach. In addition to self-energy and Pauli-blocking, effects of continuum correlations are taken into account to calculate the quasiparticle properties and abundances of light elements. Medium-modified quasiparticle properties are important ingredients to derive a nuclear matter equation of state applicable in the entire region of warm dense matter below saturation density. Moreover, the contribution of continuum states to the equation of state is considered. The effect of correlations within the nuclear medium on the quasiparticle energies is estimated. The properties of light clusters and continuum correlations in dense matter are of interest for nuclear structure calculations, heavy ion collisions, and for astrophysical applications such as the formation of neutron stars in core-collapse supernovae.

Röpke, G

2014-01-01T23:59:59.000Z

184

Dynamical Evolution, Hadronization and Angular De-correlation of Heavy Flavor in a Hot and Dense QCD Medium  

E-Print Network [OSTI]

We study heavy flavor evolution and hadronization in relativistic heavy-ion collisions. The in-medium evolution of heavy quarks is described using our modified Langevin framework that incorporates both collisional and radiative energy loss mechanisms. The subsequent hadronization process for heavy quarks is calculated with a fragmentation plus recombination model. We find significant contribution from gluon radiation to heavy quark energy loss at high $p_T$; the recombination mechanism can greatly enhance D meson production at medium $p_T$. Our calculation provides a good description of D meson nuclear modification at the LHC. In addition, we explore the angular correlation functions of heavy flavor pairs which may provide us a potential candidate for distinguishing different energy loss mechanisms of heavy quarks inside QGP.

Shanshan Cao; Guang-You Qin; Steffen A Bass

2014-04-03T23:59:59.000Z

185

Colorado's Hot Springs | Open Energy Information  

Open Energy Info (EERE)

http:crossref.org Citation D. Frazier. 2000. Colorado's Hot Springs. Boulder, Colorado: Pruett Publishing Company. 165p. Retrieved from "http:en.openei.orgw...

186

Covered Product Category: Hot Food Holding Cabinets  

Broader source: Energy.gov [DOE]

The Federal Energy Management Program (FEMP) provides acquisition guidance for hot food holding cabinets, which are covered by the ENERGY STAR program.

187

Solar Hot Water Resources and Technologies  

Broader source: Energy.gov [DOE]

This page provides a brief overview of solar hot water (SHW) technologies supplemented by specific information to apply SHW within the Federal sector.

188

Monitoring SERC Technologies — Solar Hot Water  

Broader source: Energy.gov [DOE]

A webinar by National Renewable Energy Laboratory analyst Eliza Hotchkiss on Solar Hot Water systems and how to properly monitor their installation.

189

Modern compact star observations and the quark matter EoS  

E-Print Network [OSTI]

A hybrid equation of state for dense matter is presented that satisfies phenomenological constraints from modern compact star observations which indicate high maximum masses of about 2 M_sun and large radii of R> 12 km. The corresponding isospin symmetric equation of state is consistent with flow data analyses of heavy-ion collisions. The transition from nuclear to two-flavor color superconducting quark matter at n approximately 0.55 fm^{-3} is almost a crossover.

T. Klahn

2006-11-22T23:59:59.000Z

190

Computer Simulations Indicate Calcium Carbonate Has a Dense Liquid Phase  

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

Computer Simulations Computer Simulations Indicate Calcium Carbonate Has a Dense Liquid Phase Computer Simulations Indicate Calcium Carbonate Has a Dense Liquid Phase Berkeley Lab research could help scientists predict how carbon is stored underground August 22, 2013 | Tags: Earth Sciences, Geosciences Dan Krotz 510-486-4019 dakrotz@lbl.gov red2.jpg Artistic rendition of liquid-liquid separation in a supersaturated calcium carbonate solution. New research suggests that a dense liquid phase (shown in red in the background and in full atomistic detail based on computer simulations in the foreground) forms at the onset of calcium carbonate crystallization. (Credit: Berkeley Lab) Computer simulations conducted at the U.S. Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab) could help scientists

191

Diquark condensation effects on hot quark star configurations  

E-Print Network [OSTI]

The equation of state for quark matter is derived for a nonlocal, chiral quark model within the mean field approximation.We investigate the effects of a variation of the formfactors of the interaction on the phase diagram of quark matter. Special emphasis is on the occurrence of a diquark condensate which signals a phase transition to color superconductivity and its effects on the equation of state under the condition of beta- equilibrium and charge neutrality. We calculate the quark star configurations by solving the Tolman- Oppenheimer- Volkoff equations and obtain for the transition from a hot, normal quark matter core of a protoneutron star to a cool diquark condensed one a release of binding energy of the order of Delta M c^2 ~ 10^{53} erg. We find that this energy could not serve as an engine for explosive phenomena since the phase transition is not first order. Contrary to naive expectations the mass defect increases when for a given temperature we neglect the possibility of diquark condensation.

D. Blaschke; S. Fredriksson; H. Grigorian; A. M. "Oztas

2004-02-07T23:59:59.000Z

192

Relationship between Hot Spot Residues and Ligand Binding Hot Spots in Protein-Protein Interfaces  

E-Print Network [OSTI]

, while identification of a hot spot by alanine scanning establishes the potential to generate substantial, termed "hot spots", that comprise the subset of residues that contribute the bulk of the binding free proposed as prime targets for drug binding.1,4 The established approach to the identification of such hot

Vajda, Sandor

193

Microbiology and geochemistry of Little Hot Creek, a hot spring environment in the Long Valley Caldera  

E-Print Network [OSTI]

Microbiology and geochemistry of Little Hot Creek, a hot spring environment in the Long Valley springs located within the Long Valley Caldera, Little Hot Creek (LHC) 1, 3, and 4. All three springs were that springs associated with the Long Valley Caldera contain microbial populations that show some similarities

Ahmad, Sajjad

194

Microstructure and kinetics of hot corrosion for a nickel alloy in molten salt  

SciTech Connect (OSTI)

Metallography, analytical SEM, and XRD were used to measure kinetics and characterize the microstructure of hot corrosion of the Ni-Cr-Fe alloy INCONEL 600 after 500 h immersion in molten Na{sub 2}CO{sub 3}- NaCl salt at 900-950 C in an oxidizing atmosphere. This was done to assess the alloy as a reaction vessel material for a waste treatment process known as Molten Salt Oxidation. The alloy was found to hot corrode by surface oxidation and intergranular attack. Combined rate for loss of load-bearing cross-section metal was comparable to corrosion rates for analogous salts. About 5% of the oxide scale was a continuous, dense, protective layer of Cr{sub 2}O{sub 3} at the metal/oxide interface. A middle portion comprised about 55% of the scale and was a porous, mixed oxide of NiO>Cr{sub 2}O{sub 3}>Fe{sub 2}O{sub 3}. The outer 40% was nearly all NiO with dense grains and cavitated grain boundaries. Overall, the NiO was dominant and the lesser amounts of Cr{sub 2}O{sub 3} and Fe{sub 2}O{sub 3} were roughly equivalent. No direct invasion of salt through the oxide to the metal was observed.

Stevens, D.W.; Brummond, W.A. [Lawrence Livermore National Lab., CA (United States); Grimmett, D.L.; Newcomb, J.C.; Chiang, K.T.; Gay, R.L. [Boeing North American, Inc., Canoga Park, CA (United States). Rocketdyne Div.

1996-12-01T23:59:59.000Z

195

RHIC | Why Does Quark Matter Matter?  

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

Why Does Quark Matter 'Matter'? Why Does Quark Matter 'Matter'? The history of modern technological development can be viewed as a series of investigations, with ever increasing resolution, into the microscopic structure of matter. Since the days of the early Greek philosophers, science has been on a continual quest to find the smallest piece - the most fundamental building block - forming the substance of the universe. STAR researchers During that journey, many beautiful and exotic properties of the subatomic world have been discovered: particles with wave-like properties the ultimate position of which can never be known; "particles" of light that deliver a fixed amount of energy when they strike the atoms of a material's surface; particles in some types of electrical conductors that

196

Ceramic hot-gas filter  

DOE Patents [OSTI]

A ceramic hot-gas candle filter having a porous support of filament-wound oxide ceramic yarn at least partially surrounded by a porous refractory oxide ceramic matrix, and a membrane layer on at least one surface thereof. The membrane layer may be on the outer surface, the inner surface, or both the outer and inner surface of the porous support. The membrane layer may be formed of an ordered arrangement of circularly wound, continuous filament oxide ceramic yarn, a ceramic filler material which is less permeable than the filament-wound support structure, or some combination of continuous filament and filler material. A particularly effective membrane layer features circularly wound filament with gaps intentionally placed between adjacent windings, and a filler material of ceramic particulates uniformly distributed throughout the gap region. The filter can withstand thermal cycling during backpulse cleaning and is resistant to chemical degradation at high temperatures.

Connolly, Elizabeth Sokolinski (Wilmington, DE); Forsythe, George Daniel (Landenberg, PA); Domanski, Daniel Matthew (New Castle, DE); Chambers, Jeffrey Allen (Hockessin, DE); Rajendran, Govindasamy Paramasivam (Boothwyn, PA)

1999-01-01T23:59:59.000Z

197

Ceramic hot-gas filter  

DOE Patents [OSTI]

A ceramic hot-gas candle filter is described having a porous support of filament-wound oxide ceramic yarn at least partially surrounded by a porous refractory oxide ceramic matrix, and a membrane layer on at least one surface thereof. The membrane layer may be on the outer surface, the inner surface, or both the outer and inner surface of the porous support. The membrane layer may be formed of an ordered arrangement of circularly wound, continuous filament oxide ceramic yarn, a ceramic filler material which is less permeable than the filament-wound support structure, or some combination of continuous filament and filler material. A particularly effective membrane layer features circularly wound filament with gaps intentionally placed between adjacent windings, and a filler material of ceramic particulates uniformly distributed throughout the gap region. The filter can withstand thermal cycling during back pulse cleaning and is resistant to chemical degradation at high temperatures.

Connolly, E.S.; Forsythe, G.D.; Domanski, D.M.; Chambers, J.A.; Rajendran, G.P.

1999-05-11T23:59:59.000Z

198

Gamma-rays and neutrinos from dense environment of massive binary systems in open clusters  

E-Print Network [OSTI]

TeV gamma-ray emission has been recently observed from direction of a few open clusters containing massive stars. We consider the high energy processes occurring within massive binary systems and in their dense environment by assuming that nuclei, from the stellar winds of massive stars, are accelerated at the collision region of the stellar winds. We calculate the rates of injection of protons and neutrons from fragmentation of these nuclei in collisions with stellar radiation and matter of the winds from the massive companions in binary system. Protons and neutrons can interact with the matter, within the stellar wind cavity and within the open cluster, producing pions which decay into $\\gamma$-rays and neutrinos. We discuss the detectability of such $\\gamma$-ray emission by the present and future Cherenkov telescopes for the case of two binary systems Eta Carinae, within the Carina Nebula, and WR 20a, within the Westerlund 2 open cluster. We also calculate the neutrino fluxes produced by protons around the...

Bednarek, W; Sobczak, T

2014-01-01T23:59:59.000Z

199

Disaggregating residential hot water use. Part 2  

SciTech Connect (OSTI)

A major obstacle to gathering detailed data on end-use hot water consumption within residences and commercial buildings is the cost and complexity of the field tests. An earlier study by the authors presented a methodology that could accurately disaggregate hot water consumption into individual end-uses using only information on the flow of hot water from the water heater. The earlier methodology can be extended to a much larger population of buildings, without greatly increasing the cost and complexity of the data collection and analysis, by monitoring the temperature of the hot water lines that go to different parts of the building. For the three residences studied here, thermocouples /monitored the temperatures of four hot water lines at each site. The thermocouple readings provide a positive indication of when hot water starts to flow in a line. Since the end-uses served by each hot water line are known, the uncertainty in assigning a draw to a particular end-use is greatly reduced. Benefits and limitations for the methodology are discussed in the paper. Using the revised methodology, hot water usage in three residences is disaggregated into the following end-uses: showers, baths, clothes washing, dishwashing, kitchen sink, and bathroom sink. For two residences, the earlier methodology--which does not use the thermocouple data--is also used to disaggregate the same draw data.

Lowenstein, A. [AIL Research, Inc., Princeton, NJ (United States); Hiller, C.C. [Electric Power Research Inst., Palo Alto, CA (United States)

1998-10-01T23:59:59.000Z

200

The private city through the hot images  

Science Journals Connector (OSTI)

Hot Images is an artistic mixed reality application that deals with the relation between human beings and city environments, thus proposing a novel cartography and navigation tool for the city. Within the virtual recreated environment of the Hot Images, ... Keywords: color navigation, human space, location based services, mixed reality, urban environments

Cristina Portalés

2007-06-01T23:59:59.000Z

Note: This page contains sample records for the topic "hot dense matter" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


201

Are we putting in hot water?  

E-Print Network [OSTI]

, and habitat loss will increase. And while slightly warmer water may not sound so bad to many of us, its effectAre we putting our fish in hot water? Global warming and the world's fisheries · Hot, hungry, and gasping for air · Shrinking fish and fewer babies? · Global warming puts fish on the run · Warm water

Combes, Stacey A.

202

Building Energy Software Tools Directory: HOT2000  

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

HOT2000 HOT2000 HOT2000 logo. Easy-to-use energy analysis and design software for low-rise residential buildings. Utilizing current heat loss/gain and system performance models, the program aids in the simulation and design of buildings for thermal effectiveness, passive solar heating and the operation and performance of heating and cooling systems. Keywords energy performance, design, residential buildings, energy simulation, passive solar Validation/Testing N/A Expertise Required Basic understanding of the construction and operation of residential buildings. Users Over 1400 worldwide. HOT2000 is used mainly in Canada and the United States with a few users in Japan and Europe. Audience Builders, design evaluators, engineers, architects, building and energy code writers, Policy writers. HOT2000 is also used as the compliance

203

Dense Fast Random Projections and Lean Walsh Edo Liberty ,  

E-Print Network [OSTI]

Dense Fast Random Projections and Lean Walsh Transforms Edo Liberty , , Nir Ailon , and Amit Singer , Abstract. Random projection methods give distributions over k Ã? d matrices such that if a matrix (chosen Projections, Lean Walsh Transforms, Johnson Lin- denstrauss, Dimension reduction. 1 Introduction

Singer, Amit

204

Identifying Energy Waste through Dense Power Sensing and Utilization Monitoring  

E-Print Network [OSTI]

Identifying Energy Waste through Dense Power Sensing and Utilization Monitoring Maria Kazandjieva the efficiency of such a computing system requires detailed data of both en- ergy consumption and energy waste to differentiate energy used well from energy waste. This is an important difference from pre- vious work [8, 14

Stanford University

205

Reliable and Energy-Efficient Routing Protocol in Dense  

E-Print Network [OSTI]

Reliable and Energy-Efficient Routing Protocol in Dense Wireless Sensor Networks Min Chen, Taekyoung Kwon, Shiwen Mao, + Yong Yuan, Victor C.M. Leung* Department of Electrical and Computer@snu.ac.kr Department of Electrical and Computer Engineering Auburn University, 200 Broun Hall, Auburn, AL 36849

Chen, Min

206

Atmospheric Plasma Deposited Dense Silica Coatings on Plastics  

Science Journals Connector (OSTI)

Atmospheric Plasma Deposited Dense Silica Coatings on Plastics ... (8) Finally, some plasma techniques including atmospheric plasmas work at low gas temperature, are suitable for treating plastics with low glass transition temperatures, and can even be used on biological samples. ... These results suggest that the mechanism in the atm.-pressure plasma is the same as that in low-pressure plasmas. ...

Linying Cui; Alpana N. Ranade; Marvi A. Matos; Liam S. Pingree; Theo J. Frot; Geraud Dubois; Reinhold H. Dauskardt

2012-11-26T23:59:59.000Z

207

Engineering A polymer brush is a dense monolayer of highly  

E-Print Network [OSTI]

method to produce dense polymer brushes on nanoparticles. Such particles have proven to be extremely effective emulsifying agents by virtue of their high affinity adsorption to oil droplet/water interfaces for use as emulsifiers or as environmental remediation agents, and the development of surfactant systems

208

AVOIDING FAMILIES AND TUKEY FUNCTIONS ON THE NOWHERE DENSE IDEAL  

E-Print Network [OSTI]

AVOIDING FAMILIES AND TUKEY FUNCTIONS ON THE NOWHERE DENSE IDEAL S_LAWOMIR SOLECKI AND STEVO TODORCEVIC Abstract. We investigate Tukey functions from of Isbell and Fremlin by showing that this ideal is not Tukey reducible to the ideal of density zero

Solecki, Slawomir

209

Hugoniot measurements of double-shocked precompressed dense xenon plasmas  

Science Journals Connector (OSTI)

The current partially ionized plasmas models for xenon show substantial differences since the description of pressure and thermal ionization region becomes a formidable task, prompting the need for an improved understanding of dense xenon plasmas behavior at above 100 GPa. We performed double-shock compression experiments on dense xenon to determine accurately the Hugoniot up to 172 GPa using a time-resolved optical radiation method. The planar strong shock wave was produced using a flyer plate impactor accelerated up to ?6 km/s with a two-stage light-gas gun. The time-resolved optical radiation histories were acquired by using a multiwavelength channel optical transience radiance pyrometer. Shock velocity was measured and mass velocity was determined by the impedance-matching methods. The experimental equation of state of dense xenon plasmas are compared with the self-consistent fluid variational calculations of dense xenon in the region of partial ionization over a wide range of pressures and temperatures.

J. Zheng, Q. F. Chen, Y. J. Gu, and Z. Y. Chen

2012-12-12T23:59:59.000Z

210

in Condensed Matter Physics  

E-Print Network [OSTI]

Master in Condensed Matter Physics ­ Master académique #12;2 #12;3 Students at the University. Condensed matter physics is about explaining and predicting the relationship between the atomic, and broad education in the field of condensed matter physics · introduce you to current research topics

van der Torre, Leon

211

Hafnium nitride for hot carrier solar cells  

Science Journals Connector (OSTI)

Abstract Hot carrier solar cells is an attractive technology with the potential of reaching high energy conversion efficiencies approaching the thermodynamic limit of infinitely stacked multi-junction solar cells: 65% under one sun and 86% under maximally concentrated. The hot carrier solar cell is conceptually simple consisting of two key components: absorber and energy selective contacts. High efficiencies are achieved by minimising the energy lost to thermalisaton of hot photo-generated carriers while absorbing majority of the solar spectrum. For this to be achieved, energy selective contacts are required to allow the extraction of carriers fast enough at an energy level above the electronic band edge. It is critical for the absorber to be able to maintain a hot carrier population for a sufficiently long time period for the extraction of carriers while they are ‘hot’. Bulk materials with a large gap between acoustic and optical branches in the phonon dispersion are predicted to exhibit slow hot carrier thermalisation rates. Hafnium nitride is such a material with a large gap in its phonon dispersion and is identified as a potential material to be used as a hot carrier absorber. Hafnium nitride has been deposited using reactive sputtering and characterised to investigate material properties and carrier cooling rates.

Simon Chung; Santosh Shrestha; Xiaoming Wen; Yu Feng; Neeti Gupta; Hongze Xia; Pyng Yu; Jau Tang; Gavin Conibeer

2014-01-01T23:59:59.000Z

212

Big Questions: Dark Matter  

ScienceCinema (OSTI)

Carl Sagan's oft-quoted statement that there are "billions and billions" of stars in the cosmos gives an idea of just how much "stuff" is in the universe. However scientists now think that in addition to the type of matter with which we are familiar, there is another kind of matter out there. This new kind of matter is called "dark matter" and there seems to be five times as much as ordinary matter. Dark matter interacts only with gravity, thus light simply zips right by it. Scientists are searching through their data, trying to prove that the dark matter idea is real. Fermilab's Dr. Don Lincoln tells us why we think this seemingly-crazy idea might not be so crazy after all.

Lincoln, Don

2014-08-07T23:59:59.000Z

213

Seismic baseline and induction studies- Roosevelt Hot Springs...  

Open Energy Info (EERE)

studies- Roosevelt Hot Springs, Utah and Raft River, Idaho Abstract Local seismic networks were established at the Roosevelt Hot Springs geothermal area, utah and at Raft...

214

EIS-0502: Hot Springs to Anaconda Transmission Line Rebuild Project...  

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

Hot Springs to Anaconda Transmission Line Rebuild Project, Montana EIS-0502: Hot Springs to Anaconda Transmission Line Rebuild Project, Montana SUMMARY DOE's Bonneville Power...

215

Model Simulating Real Domestic Hot Water Use - Building America...  

Energy Savers [EERE]

Model Simulating Real Domestic Hot Water Use - Building America Top Innovation Model Simulating Real Domestic Hot Water Use - Building America Top Innovation Image of a pipe...

216

Webinar: ENERGY STAR Hot Water Systems for High Performance Homes...  

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

Webinar: ENERGY STAR Hot Water Systems for High Performance Homes Webinar: ENERGY STAR Hot Water Systems for High Performance Homes This presentation is from the Building America...

217

Jackson Hot Springs Lodge Space Heating Low Temperature Geothermal...  

Open Energy Info (EERE)

Hot Springs Lodge Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Jackson Hot Springs Lodge Space Heating Low Temperature Geothermal Facility...

218

Jacumba Hot Springs Health Spa Pool & Spa Low Temperature Geothermal...  

Open Energy Info (EERE)

Jacumba Hot Springs Health Spa Pool & Spa Low Temperature Geothermal Facility Jump to: navigation, search Name Jacumba Hot Springs Health Spa Pool & Spa Low Temperature Geothermal...

219

Chena Hot Springs Resort - Electric Power Generation Using Geothermal...  

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

Hot Springs Resort - Electric Power Generation Using Geothermal Fluid Coproduced from Oil andor Gas Wells Chena Hot Springs Resort - Electric Power Generation Using Geothermal...

220

Aeromagnetic Survey At Roosevelt Hot Springs Geothermal Area...  

Open Energy Info (EERE)

literature review of the Roosevelt Hot Springs Geothermal Area. Notes Aeromagnetic intensity residual map compiled for Roosevelt Hot Springs Geothermal Area, providing...

Note: This page contains sample records for the topic "hot dense matter" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


221

Resistivity Tomography At Crump's Hot Springs Area (DOE GTP)...  

Open Energy Info (EERE)

Tomography At Crump's Hot Springs Area (DOE GTP) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Resistivity Tomography At Crump's Hot Springs...

222

Hot Leg Piping Materials Issues  

SciTech Connect (OSTI)

With Naval Reactors (NR) approval of the Naval Reactors Prime Contractor Team (NRPCT) recommendation to develop a gas cooled reactor directly coupled to a Brayton power conversion system as the space nuclear power plant (SNPP) for Project Prometheus (References a and b) the reactor outlet piping was recognized to require a design that utilizes internal insulation (Reference c). The initial pipe design suggested ceramic fiber blanket as the insulation material based on requirements associated with service temperature capability within the expected range, very low thermal conductivity, and low density. Nevertheless, it was not considered to be well suited for internal insulation use because its very high surface area and proclivity for holding adsorbed gases, especially water, would make outgassing a source of contaminant gases in the He-Xe working fluid. Additionally, ceramic fiber blanket insulating materials become very friable after relatively short service periods at working temperatures and small pieces of fiber could be dislodged and contaminate the system. Consequently, alternative insulation materials were sought that would have comparable thermal properties and density but superior structural integrity and greatly reduced outgassing. This letter provides technical information regarding insulation and materials issues for the Hot Leg Piping preconceptual design developed for the Project Prometheus space nuclear power plant (SNPP).

V. Munne

2006-07-19T23:59:59.000Z

223

Volume reduction of hot cell plastic wastes  

SciTech Connect (OSTI)

The disposal of radioactively-contaminated solid wastes has become a national crisis. In such circumstances, it is imperative that this waste be reduced to minimum volume and be packaged to prevent pollution of the environment. The majority of the solid waste generated at the hot cell under consideration is plastic lab ware. Cutting this waste into small pieces with a hot wire technique reduced the volume 66%. Melting the waste, although more time consuming, reduced the volume 90%. The hot wire technique can also be used to cut up damaged master slave manipulator boots, greatly reducing their disposal volume.

Dykes, F W; Henscheid, J P; Lewis, L C; Lundholm, C W; Nicklas, J H

1989-09-19T23:59:59.000Z

224

Soft X-Ray Spectroscopic Study of Dense Strontium-Doped Lanthanum...  

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

Soft X-Ray Spectroscopic Study of Dense Strontium-Doped Lanthanum Manganite Cathodes for Solid Oxide Fuel Cell Applications. Soft X-Ray Spectroscopic Study of Dense Strontium-Doped...

225

Partial oxidation process for producing a stream of hot purified gas  

DOE Patents [OSTI]

A partial oxidation process for the production of a stream of hot clean gas substantially free from particulate matter, ammonia, alkali metal compounds, halides and sulfur-containing gas for use as synthesis gas, reducing gas, or fuel gas. A hydrocarbonaceous fuel comprising a solid carbonaceous fuel with or without liquid hydrocarbonaceous fuel or gaseous hydrocarbon fuel, wherein said hydrocarbonaceous fuel contains halides, alkali metal compounds, sulfur, nitrogen and inorganic ash containing components, is reacted in a gasifier by partial oxidation to produce a hot raw gas stream comprising H.sub.2, CO, CO.sub.2, H.sub.2 O, CH.sub.4, NH.sub.3, HCl, HF, H.sub.2 S, COS, N.sub.2, Ar, particulate matter, vapor phase alkali metal compounds, and molten slag. The hot raw gas stream from the gasifier is split into two streams which are separately deslagged, cleaned and recombined. Ammonia in the gas mixture is catalytically disproportionated into N.sub.2 and H.sub.2. The ammonia-free gas stream is then cooled and halides in the gas stream are reacted with a supplementary alkali metal compound to remove HCl and HF. Alkali metal halides, vaporized alkali metal compounds and residual fine particulate matter are removed from the gas stream by further cooling and filtering. The sulfur-containing gases in the process gas stream are then reacted at high temperature with a regenerable sulfur-reactive mixed metal oxide sulfur sorbent material to produce a sulfided sorbent material which is then separated from the hot clean purified gas stream having a temperature of at least 1000.degree. F.

Leininger, Thomas F. (Chino Hills, CA); Robin, Allen M. (Anaheim, CA); Wolfenbarger, James K. (Torrance, CA); Suggitt, Robert M. (Wappingers Falls, NY)

1995-01-01T23:59:59.000Z

226

Energy levels of a heavy ion moving in dense plasmas  

SciTech Connect (OSTI)

In this paper, the potential of a slowly moving test particle moving in collisional dense plasmas is studied. It is composed of the Debye-shielding potential, wake potential, and collision term. The Ritz variational-perturbational method is developed for calculating relativistic binding energy levels of a heavy ion moving in dense plasmas. Binding energy levels of a heavy ion moving in plasmas are calculated. The results show that both non-relativistic energy levels and relativistic energy levels become more negative as the temperature becomes high. They also become more negative as the number density decreasing. Relativistic correction is important for calculating binding energy levels. Both relativistic energy levels and non-relativistic energy levels vary minutely as the speed of heavy ion varies.

Hu, Hongwei; Chen, Wencong [Department of Physics, Shangqiu Normal University, Shangqiu 476000 (China)] [Department of Physics, Shangqiu Normal University, Shangqiu 476000 (China); Zhao, Yongtao [Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000 (China)] [Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000 (China); Li, Fuli [Department of Applied Physics, Xian Jiao-Tong University, Xian 710049 (China)] [Department of Applied Physics, Xian Jiao-Tong University, Xian 710049 (China); Dong, Chenzhong [College of Physics and Electronic Engineering, Northwest Normal University, Lanzhou 730070 (China)] [College of Physics and Electronic Engineering, Northwest Normal University, Lanzhou 730070 (China)

2013-12-15T23:59:59.000Z

227

Collective waves in dense and confined microfluidic droplet arrays  

E-Print Network [OSTI]

Excitation mechanisms for collective waves in confined dense one-dimensional microfluidic droplet arrays are investigated by experiments and computer simulations. We demonstrate that distinct modes can be excited by creating specific `defect' patterns in flowing droplet trains. Excited longitudinal modes exhibit a short-lived cascade of pairs of laterally displacing droplets. Transversely excited modes obey the dispersion relation of microfluidic phonons and induce a coupling between longitudinal and transverse modes, whose origin is the hydrodynamic interaction of the droplets with the confining walls. Moreover, we investigate the long-time behaviour of the oscillations and discuss possible mechanisms for the onset of instabilities. Our findings demonstrate that the collective dynamics of microfluidic droplet ensembles can be studied particularly well in dense and confined systems. Experimentally, the ability to control microfluidic droplets may allow to modulate the refractive index of optofluidic crystals which is a promising approach for the production of dynamically programmable metamaterials.

Ulf D. Schiller; Jean-Baptiste Fleury; Ralf Seemann; Gerhard Gompper

2015-02-19T23:59:59.000Z

228

Graphene-Base Hot-Electron Transistor  

E-Print Network [OSTI]

B. H. ; Wang, K. L. "Vertical Graphene-Base Hot-Electronoperation in single-layer graphene ferroelectric memory",of Dirac Point Energy at the Graphene/Oxide Interface", Nano

Zeng, Caifu

2014-01-01T23:59:59.000Z

229

Extracting hot carriers from photoexcited semiconductor nanocrystals  

SciTech Connect (OSTI)

During this funding period, we made a significant breakthrough and established for the first time that hot electron transfer from photoexcited NCs to an electron acceptor was indeed possible.

Zhu, Xiaoyang [Columbia University Department of Chemistry

2013-09-12T23:59:59.000Z

230

Arnold Schwarzenegger WATER HEATERS AND HOT WATER  

E-Print Network [OSTI]

Arnold Schwarzenegger Governor WATER HEATERS AND HOT WATER DISTRIBUTION SYSTEMS;#12;Appendices Appendix A. Multifamily Water Heating Construction Practices, Pricing and Availability Survey Report Appendix B. Multifamily Water Heating Controls Performance Field Report Appendix C. Pipe

231

Wall Drying in Hot and Humid Climates  

E-Print Network [OSTI]

Moisture and subsequent mold problems in buildings are a serious and increasing concern for the building industry. Moisture intrusion in buildings is especially pertinent in hot and humid climates because the climate conditions provide only limited...

Boone, K.; Weston, T.; Pascual, X.

2004-01-01T23:59:59.000Z

232

Method for making dense crack free thin films  

DOE Patents [OSTI]

The process described herein provides a simple and cost effective method for making crack free, high density thin ceramic film. The steps involve depositing a layer of a ceramic material on a porous or dense substrate. The deposited layer is compacted and then the resultant laminate is sintered to achieve a higher density than would have been possible without the pre-firing compaction step.

Jacobson, Craig P. (Lafayette, CA); Visco, Steven J. (Berkeley, CA); De Jonghe, Lutgard C. (Lafayette, CA)

2007-01-16T23:59:59.000Z

233

Compacting Plastic-Bonded Explosive Molding Powders to Dense Solids  

SciTech Connect (OSTI)

Dense solid high explosives are made by compacting plastic-bonded explosive molding powders with high pressures and temperatures for extended periods of time. The density is influenced by manufacturing processes of the powders, compaction temperature, the magnitude of compaction pressure, pressure duration, and number of repeated applications of pressure. The internal density variation of compacted explosives depends on method of compaction and the material being compacted.

B. Olinger

2005-04-15T23:59:59.000Z

234

Equilibration processes in the Warm-Hot Intergalactic Medium  

E-Print Network [OSTI]

The Warm-Hot Intergalactic Medium (WHIM) is thought to contribute about 40-50 % to the baryonic budget at the present evolution stage of the universe. The observed large scale structure is likely to be due to gravitational growth of density fluctuations in the post-inflation era. The evolving cosmic web is governed by non-linear gravitational growth of the initially weak density fluctuations in the dark energy dominated cosmology. Non-linear structure formation, accretion and merging processes, star forming and AGN activity produce gas shocks in the WHIM. Shock waves are converting a fraction of the gravitation power to thermal and non-thermal emission of baryonic/leptonic matter. They provide the most likely way to power the luminous matter in the WHIM. The plasma shocks in the WHIM are expected to be collisionless. Collisionless shocks produce a highly non-equilibrium state with anisotropic temperatures and a large differences in ion and electron temperatures. We discuss the ion and electron heating by the collisionless shocks and then review the plasma processes responsible for the Coulomb equilibration and collisional ionisation equilibrium of oxygen ions in the WHIM. MHD-turbulence produced by the strong collisionless shocks could provide a sizeable non-thermal contribution to the observed Doppler parameter of the UV line spectra of the WHIM.

A. M. Bykov; F. B. S. Paerels; V. Petrosian

2008-01-07T23:59:59.000Z

235

Plasmonic Energy Collection through Hot Carrier Extraction  

Science Journals Connector (OSTI)

(9) This fundamental hot-carrier mechanism has been used extensively to determine Schottky barrier heights, yet has not been considered for energy conversion due to low efficiencies. ... After hot carriers reach the interface, they either tunnel through or traverse over the barrier, ?b, to be collected by the other electrode depending on their energies relative to the barrier height. ... Nanoantennas are key optical components for light harvesting; photodiodes convert light into a current of electrons for photodetection. ...

Fuming Wang; Nicholas A. Melosh

2011-10-24T23:59:59.000Z

236

Canopy hot-spot as crop identifier  

SciTech Connect (OSTI)

Illuminating any reflective rough or structured surface by a directional light source results in an angular reflectance distribution that shows a narrow peak in the direction of retro-reflection. This is called the Heiligenschein or hot-spot of vegetation canopies and is caused by mutual shading of leaves. The angular intensity distribution of the hot-spot, its brightness and slope, are therefore indicators of the plant's geometry. We propose the use of hot-spot characteristics as crop identifiers in satellite remote sensing because the canopy hot-spot carries information about plant stand architecture that is more distinctive for different plant species than, for instance, their spectral reflectance characteristics. A simple three-dimensional Monte Carlo/ray tracing model and an analytic two-dimensional model are developed to estimate the angular distribution of the hot-spot as a function of the size of the plant leaves. The results show that the brightness-distribution and slope of the hot-spot change distinctively for different leaf sizes indicating a much more peaked maximum for the smaller leaves.

Gerstl, S.A.W.; Simmer, C.; Powers, B.J.

1986-05-01T23:59:59.000Z

237

Disaggregating Hot Water Use and Predicting Hot Water Waste in Five Test Homes  

SciTech Connect (OSTI)

While it is important to make the equipment (or 'plant') in a residential hot water system more efficient, the hot water distribution system also affects overall system performance and energy use. Energy wasted in heating water that is not used is estimated to be on the order of 10 to 30 percent of total domestic hot water (DHW) energy use. This field monitoring project installed temperature sensors on the distribution piping (on trunks and near fixtures) and programmed a data logger to collect data at 5 second intervals whenever there was a hot water draw. This data was used to assign hot water draws to specific end uses in the home as well as to determine the portion of each hot water that was deemed useful (i.e., above a temperature threshold at the fixture). Five houses near Syracuse NY were monitored. Overall, the procedures to assign water draws to each end use were able to successfully assign about 50% of the water draws, but these assigned draws accounted for about 95% of the total hot water use in each home. The amount of hot water deemed as useful ranged from low of 75% at one house to a high of 91% in another. At three of the houses, new water heaters and distribution improvements were implemented during the monitoring period and the impact of these improvements on hot water use and delivery efficiency were evaluated.

Henderson, H.; Wade, J.

2014-04-01T23:59:59.000Z

238

The Matter of Detailing  

Science Journals Connector (OSTI)

Project success is truly a “matter of detailing”! So, it is imperative that the strongest of cases must be made for the process of detailing!

Ralph W. Liebing RA; CSI; CPCA; CBO

2011-01-01T23:59:59.000Z

239

EMSL - soil organic matter  

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

soil-organic-matter en Structures and Stabilities of (MgO)n Nanoclusters. http:www.emsl.pnl.govemslwebpublicationsstructures-and-stabilities-mgon-nanoclusters

240

Dark matter at colliders  

SciTech Connect (OSTI)

We show that colliders can impose strong constraints on dark matter. We take an effective field theory approach where dark matter couples to quarks and gluons through high dimensional operators. We discuss limits on interactions of dark matter and hadronic matter from the ATLAS experiment at the Large Hadron Collider (LHC). For spin-independent scattering, the LHC limits are stronger than those from direct detection experiments for light WIMPs. For spin-dependent scattering, the LHC sets better limits over much of parameter space.

Yu Haibo [Department of Physics, University of Michigan, Ann Arbor, MI, 48109 (United States)

2013-05-23T23:59:59.000Z

Note: This page contains sample records for the topic "hot dense matter" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


241

Deterministic Many-to-Many Hot Potato Routing Allan Borodin  

E-Print Network [OSTI]

Deterministic Many-to-Many Hot Potato Routing Allan Borodin Yuval Rabani Baruch Schieber Abstract We consider algorithms for many-to-many hot potato routing. In hot potato (deflection) routing in each time step. We consider a form of routing known as hot potato routing or deflection routing [1, 5

Borodin, Allan

242

ADVANCED HOT GAS FILTER DEVELOPMENT  

SciTech Connect (OSTI)

This report describes the fabrication and testing of continuous fiber ceramic composite (CFCC) based hot gas filters. The fabrication approach utilized a modified filament winding method that combined both continuous and chopped fibers into a novel microstructure. The work was divided into five primary tasks. In the first task, a preliminary set of compositions was fabricated in the form of open end tubes and characterized. The results of this task were used to identify the most promising compositions for sub-scale filter element fabrication and testing. In addition to laboratory measurements of permeability and strength, exposure testing in a coal combustion environment was performed to asses the thermo-chemical stability of the CFCC materials. Four candidate compositions were fabricated into sub-scale filter elements with integral flange and a closed end. Following the 250 hour exposure test in a circulating fluid bed combustor, the retained strength ranged from 70 t 145 percent of the as-fabricated strength. The post-test samples exhibited non-catastrophic failure behavior in contrast to the brittle failure exhibited by monolithic materials. Filter fabrication development continued in a filter improvement and cost reduction task that resulted in an improved fiber architecture, the production of a net shape flange, and an improved low cost bond. These modifications were incorporated into the process and used to fabricate 50 full-sized filter elements for testing in demonstration facilities in Karhula, Finland and at the Power Systems Development Facility (PSDF) in Wilsonville, AL. After 581 hours of testing in the Karhula facility, the elements retained approximately 87 percent of their as-fabricated strength. In addition, mechanical response testing at Virginia Tech provided a further demonstration of the high level of strain tolerance of the vacuum wound filter elements. Additional testing in the M. W. Kellogg unit at the PSDF has accumulated over 1800 hours of coal firing at temperatures of 760 °C including a severe thermal upset that resulted in the failure of several monolithic oxide elements. No failures of any kind have been reported for the MTI CFCC elements in either of these test campaigns. Additional testing is planned at the M. W. Kellogg unit and Foster Wheeler unit at the PSDF over the next year in order to qualify for consideration for the Lakeland PCFB. Process scale-up issues have been identified and manufacturing plans are being evaluated to meet the needs of future demand.

RICHARD A. WAGNER

1998-09-04T23:59:59.000Z

243

Experiments with the hot list strategy  

SciTech Connect (OSTI)

Experimentation strongly suggests that, for attacking deep questions and hard problems with the assistance of an automated reasoning program, the more effective paradigms rely on the retention of deduced information. A significant obstacle ordinarily presented by such a paradigm is the deduction and retention of one or more needed conclusions whose complexity sharply delays their consideration. To mitigate the severity of the cited obstacle, the author formulates and features in this report the hot list strategy. The hot list strategy asks the researcher to choose, usually from among the input statements, one or more clauses that are conjectured to play a key role for assignment completion. The chosen clauses - conjectured to merit revisiting, again and again - are placed in an input list of clauses, called the hot list. When an automated reasoning program has decided to retain a new conclusion C - before any other clause is chosen to initiate conclusion drawing - the presence of a nonempty hot list (with an appropriate assignment of the input parameter known as heat) causes each inference rule in use to be applied to C together with the appropriate number of members of the hot list. Members of the hot list are used to complete applications of inference rules and not to initiate applications. The use of the hot list strategy thus enables an automated reasoning program to briefly consider a newly retained conclusion whose complexity would otherwise prevent its use for perhaps many CPU-hours. To give evidence of the value of the strategy, the author focuses on four contexts: (1) dramatically reducing the CPU time required to reach a desired goal; (2) finding a proof of a theorem that had previously resisted all but the more inventive automated attempts; (3) discovering a proof that is more elegant than previously known; and (4) answering a question that had steadfastly eluded researchers relying on an automated reasoning program.

Wos, L.

1997-10-01T23:59:59.000Z

244

INTERMEDIATE-MASS HOT CORES AT {approx}500 AU: DISKS OR OUTFLOWS?  

SciTech Connect (OSTI)

Observations with the Plateau de Bure Interferometer in the most extended configuration toward two intermediate-mass star-forming regions, IRAS 22198+6336 and AFGL 5142, reveal the presence of several complex organic molecules at {approx}500 AU scales, confirming the presence of hot cores in both regions. The hot cores are not rich in CN-bearing molecules, as often seen in massive hot cores, and are mainly traced by CH{sub 3}CH{sub 2}OH, (CH{sub 2}OH){sub 2}, CH{sub 3}COCH{sub 3}, and CH{sub 3}OH, with, additionally, CH{sub 3}CHO, CH{sub 3}OD, and HCOOD for IRAS 22198+6336, and C{sub 6}H and O{sup 13}CS for AFGL 5142. The emission of complex molecules is resolved down to sizes of {approx}300 and {approx}600 AU, for IRAS 22198+6336 and AFGL 5142, respectively, and most likely is tracing protostellar disks rather than flattened envelopes or toroids as is usually found. This is especially clear for the case of IRAS 22198+6336, where we detect a velocity gradient for all the mapped molecules perpendicular to the most chemically rich outflow of the region, yielding a dynamic mass {approx}> 4 M{sub Sun }. As for AFGL 5142, the hot core emission is resolved into two elongated cores separated {approx}1800 AU. A detailed comparison of the complex molecule peaks to the new CO (2-1) data and H{sub 2}O maser data from the literature suggests also that for AFGL 5142 the complex molecules are mainly associated with disks, except for a faint and extended molecular emission found to the west, which is possibly produced in the interface between one of the outflows and the dense surrounding gas.

Palau, Aina; Girart, Josep M. [Institut de Ciencies de l'Espai (CSIC-IEEC), Campus UAB-Facultat de Ciencies, Torre C5-parell 2, 08193 Bellaterra, Catalunya (Spain); Fuente, Asuncion; Alonso-Albi, Tomas [Observatorio Astronomico Nacional, P.O. Box 112, 28803 Alcala de Henares, Madrid (Spain); Fontani, Francesco; Sanchez-Monge, Alvaro [Osservatorio Astrofisico di Arcetri, INAF, Largo E. Fermi 5, 50125 Firenze (Italy); Boissier, Jeremie [Istituto di Radioastronomia, INAF, Via Gobetti 101, Bologna (Italy); Pietu, Vincent; Neri, Roberto [IRAM, 300 Rue de la piscine, 38406 Saint Martin d'Heres (France); Busquet, Gemma [Istituto di Fisica dello Spazio Interplanetario, INAF, Area di Recerca di Tor Vergata, Via Fosso Cavaliere 100, 00133 Roma (Italy); Estalella, Robert [Departament d'Astronomia i Meteorologia (IEEC-UB), Institut Ciencies Cosmos, Universitat Barcelona, Marti Franques 1, 08028 Barcelona (Spain); Zapata, Luis A. [Centro de Radioastronomia y Astrofisica, Universidad Nacional Autonoma de Mexico, P.O. Box 3-72, 58090 Morelia, Michoacan (Mexico); Zhang, Qizhou; Ho, Paul T. P. [Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138 (United States); Audard, Marc, E-mail: palau@ieec.uab.es [Geneva Observatory, University of Geneva, Ch. des Maillettes 51, 1290 Versoix (Switzerland)

2011-12-20T23:59:59.000Z

245

Money Matters Parent Presentation  

E-Print Network [OSTI]

Money Matters Parent Presentation Presented by Becky Lore June 7, 2014 #12;Money Matters · Dates.fcac-acfc.gc.ca · Gail Vaz-Oxlade My Money, My Choices www.gailvazoxlade.com · Money Mentors www.moneymentors.ca/ · Money

Seldin, Jonathan P.

246

Laser-matter interaction at intensities of 10 sup 12 W/cm sup 2 and below  

SciTech Connect (OSTI)

For single pulsed laser-matter interactions at sufficiently high intensity, the electron density in the ablated vapor is large enough to absorb the laser radiation before it can reach the dense target material. The resulting interaction can be described in terms of energy flows: laser energy is absorbed in the plasma in front of the target and reappears as thermal electron energy and secondary radiation, part of which impinges upon and heats the dense target material at the dense material-vapor interface. This heating in turn drives ablation, thereby providing a self-consistent mass source for the laser absorption, energy conversion, and transmission. Under typical conditions of laser intensity, pulse width and spot size, the flow patterns can be strongly two-dimensional. We have modified the inertial confinement fusion code LASNEX to simulate gaseous and some dense material aspects for the relatively low intensity, long-pulse-length conditions to interest in many laser-related applications. The unique aspect to our treatment consists of an ablation model which defines a dense material vapor interface and then calculates the mass flow across this interface. The model, at present, treats the dense material as a rigid, two-dimensional simulational mass and heat reservoir, suppressing all hydrodynamical motion in the dense material. The modeling is being developed and refined through simulation of experiments, as well as through the investigation of internal inconsistencies, and some simulations of model problems. 5 refs., 14 figs., 1 tab.

Goldman, S.R.; Dingus, R.S.; Kirkpatrick, R.C.; Kopp, R.A.; Stover, E.K.; Watt, R.G.

1990-01-01T23:59:59.000Z

247

Decontamination of Hot Cells and Hot Pipe Tunnel at NASA's Plum Brook Reactor Facility  

SciTech Connect (OSTI)

The large scale decontamination of the concrete Hot Cells and Hot Pipe Tunnel at NASA's Plum Brook Reactor Facility demonstrates that novel management and innovative methods are crucial to ensuring that the successful remediation of the most contaminated facilities can be achieved with minimal risk to the project stakeholders. (authors)

Anderson, M.G.; Halishak, W.F. [MOTA Corporation, West Columbia, SC (United States)

2008-07-01T23:59:59.000Z

248

Hot Water DJ: Saving Energy by Pre-mixing Hot Water Md Anindya Prodhan  

E-Print Network [OSTI]

Hot Water DJ: Saving Energy by Pre-mixing Hot Water Md Anindya Prodhan Department of Computer University of Virginia whitehouse@virginia.edu Abstract After space heating and cooling, water heating consumption. Current water heating systems waste up to 20% of their energy due to poor insulation in pipes

Whitehouse, Kamin

249

Extracting hot carriers from photoexcited semiconductor nanocrystals  

SciTech Connect (OSTI)

This research program addresses a fundamental question related to the use of nanomaterials in solar energy -- namely, whether semiconductor nanocrystals (NCs) can help surpass the efficiency limits, the so-called “Shockley-Queisser” limit, in conventional solar cells. In these cells, absorption of photons with energies above the semiconductor bandgap generates “hot” charge carriers that quickly “cool” to the band edges before they can be utilized to do work; this sets the solar cell efficiency at a limit of ~31%. If instead, all of the energy of the hot carriers could be captured, solar-to-electric power conversion efficiencies could be increased, theoretically, to as high as 66%. A potential route to capture this energy is to utilize semiconductor nanocrystals. In these materials, the quasi-continuous conduction and valence bands of the bulk semiconductor become discretized due to confinement of the charge carriers. Consequently, the energy spacing between the electronic levels can be much larger than the highest phonon frequency of the lattice, creating a “phonon bottleneck” wherein hot-carrier relaxation is possible via slower multiphonon emission. For example, hot-electron lifetimes as long as ~1 ns have been observed in NCs grown by molecular beam epitaxy. In colloidal NCs, long lifetimes have been demonstrated through careful design of the nanocrystal interfaces. Due to their ability to slow electronic relaxation, semiconductor NCs can in principle enable extraction of hot carriers before they cool to the band edges, leading to more efficient solar cells.

Zhu, Xiaoyang

2014-12-10T23:59:59.000Z

250

Anomalous thermodynamics and phase transitions of neutron-star matter  

E-Print Network [OSTI]

In this letter we show that the presence of the long-range Coulomb force in dense stellar matter implies that the total charge cannot be associated with a chemical potential, even if it is a conserved quantity. As a further consequence, the analytical properties of the partition sum are modified, changing the order of the phase transitions and affecting the possible occurrence of critical behaviours. The peculiar thermodynamic properties of the system can be understood introducing a model hamiltonian in which each charge is independently neutralized by a uniform background of opposite charge.

P. Chomaz; F. Gulminelli; C. Ducoin; P. Napolitani; K. H. O. Hasnaoui

2005-07-27T23:59:59.000Z

251

Coupling Lattice Boltzmann and Molecular Dynamics models for dense fluids  

E-Print Network [OSTI]

We propose a hybrid model, coupling Lattice Boltzmann and Molecular Dynamics models, for the simulation of dense fluids. Time and length scales are decoupled by using an iterative Schwarz domain decomposition algorithm. The MD and LB formulations communicate via the exchange of velocities and velocity gradients at the interface. We validate the present LB-MD model in simulations of flows of liquid argon past and through a carbon nanotube. Comparisons with existing hybrid algorithms and with reference MD solutions demonstrate the validity of the present approach.

A. Dupuis; E. M. Kotsalis; P. Koumoutsakos

2006-10-27T23:59:59.000Z

252

Nonlinear elasto-plastic model for dense granular flow  

E-Print Network [OSTI]

This work proposes a model for granular deformation that predicts the stress and velocity profiles in well-developed dense granular flows. Recent models for granular elasticity (Jiang and Liu 2003) and rate-sensitive plastic flow (Jop et al. 2006) are reformulated and combined into one universal granular continuum law, capable of predicting flowing regions and stagnant zones simultaneously in any arbitrary 3D flow geometry. The unification is performed by justifying and implementing a Kroner-Lee elasto-plastic decomposition, with care taken to ensure certain continuum physical principles are necessarily upheld. The model is then numerically implemented in multiple geometries and results are compared to experiments and discrete simulations.

Ken Kamrin

2009-05-07T23:59:59.000Z

253

Comparative Characteristics of Four Small Dense Plasma Focus Devices  

Science Journals Connector (OSTI)

Four small (in the energy range 2–7 kJ) dense plasma focus devices were elaborated and put into operation in the last several years: ING?103 DPF?10 PF?5M and DPF?6. Each device has its own parameters (energy current rise?time and magnitude pulse duration of ionizing radiation of different types weight etc.) and together with the specific discharge chambers they are optimized for various applications. Comparative description of functioning parameters of these devices together with the results of the most successful applications is presented in the report.

A. V. Dubrovsky; V. A. Gribkov; V. N. Pimenov; M. Scholz

2008-01-01T23:59:59.000Z

254

High contrast radiography using a small dense plasma focus  

Science Journals Connector (OSTI)

Radiographs are obtained with a small ( 4.6 kJ ) dense plasma focus machine using the x-rays which cross a 300 ? m aluminum window on the axis. Contrast is improved by inserting an iron needle on the tip of the electrode. Measurements with TLD-100 dosimeters have shown the average dose to increase from 0.077 ± 0.006 mGy /shot when a hollow cathode is used to 0.11 ± 0.01 mGy /shot with the needle. The spectrum is estimated using aluminum filters and the effective equivalent energy is found to be in the range of 20 – 25 keV .

F. Castillo; I. Gamboa-deBuen; J. J. E. Herrera; J. Rangel; S. Villalobos

2008-01-01T23:59:59.000Z

255

Open bottom mesons in hot asymmetric hadronic medium  

E-Print Network [OSTI]

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

Divakar Pathak; Amruta Mishra

2014-09-02T23:59:59.000Z

256

Hot Pot Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Hot Pot Geothermal Area Hot Pot Geothermal Area Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Hot Pot Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (0) 9 Exploration Activities (6) 10 References Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"TERRAIN","zoom":6,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"500px","height":"300px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":40.922,"lon":-117.108,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

257

Hot Pot Geothermal Project | Open Energy Information  

Open Energy Info (EERE)

Hot Pot Geothermal Project Hot Pot Geothermal Project Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Development Project: Hot Pot Geothermal Project Project Location Information Coordinates 40.996944444444°, -117.24805555556° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":40.996944444444,"lon":-117.24805555556,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

258

University of Colorado Hot Water Report  

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

Hot water system Brief Contest Report Hot water system Brief Contest Report Recognizing that the sun is an abundant source of clean energy that reaches the earth at an intensity of up to 1000 Watts/m 2 , the University of Colorado will be showcasing top-of-the-line technology in which solar radiation is converted into heat for the purposes of heating the home and providing domestic hot water. Solar Thermal System - Basics Colorado's 2005 Solar Decathlon team has chosen to harness the sun's thermal energy with 4 arrays of 20 Mazdon evacuated tube collectors manufactured by Thermomax, as shown in Figure 1 below. These collectors have incredibly high efficiencies - about 60% over the course of an entire day. In addition, the evacuated tube collectors resist internal condensation and corrosion more effectively than their counterparts

259

Just Hot Resources Consulting | Open Energy Information  

Open Energy Info (EERE)

Hot Resources Consulting Hot Resources Consulting Jump to: navigation, search Name Just Hot Resources Consulting Place Windsor, California Zip 95492 Sector Geothermal energy Product A California-based consulting firm specializing in geothermal drilling project management. Coordinates 43.21638°, -89.340849° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":43.21638,"lon":-89.340849,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

260

Hot gas filter and system assembly  

DOE Patents [OSTI]

A filter element for separating fine dirty particles from a hot gas. The filter element comprises a first porous wall and a second porous wall. Each porous wall has an outer surface and an inner surface. The first and second porous walls being coupled together thereby forming a substantially closed figure and open at one end. The open end is formed to be coupled to a hot gas clean up system support structure. The first and second porous walls define a channel beginning at the open end and terminate at the closed end through which a filtered clean gas can flow through and out into the clean gas side of a hot gas clean up system.

Lippert, Thomas Edwin (Murrysville, PA); Palmer, Kathryn Miles (Monroeville, PA); Bruck, Gerald Joseph (Murrysville, PA); Alvin, Mary Anne (Pittsburgh, PA); Smeltzer, Eugene E. (Export, PA); Bachovchin, Dennis Michael (Murrysville, PA)

1999-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "hot dense matter" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


261

Multi-Messenger Observations of Neutron Rich Matter  

SciTech Connect (OSTI)

At very high densities, electrons react with protons to form neutron rich matter. This material is central to many fundamental questions in nuclear physics and astrophysics. Moreover, neutron rich matter is being studied with an extraordinary variety of new tools such as the Facility for Rare Isotope Beams (FRIB) and the Laser Interferometer Gravitational Wave Observatory (LIGO). We describe the Lead Radius Experiment (PREX) that uses parity violating electron scattering to measure the neutron radius in 208Pb. This has important implications for neutron stars and their crusts. We discuss X-ray observations of neutron star radii. These also have important implications for neutron rich matter. Gravitational waves (GW) open a new window on neutron rich matter. They come from sources such as neutron star mergers, rotating neutron star mountains, and collective r-mode oscillations. Using large scale molecular dynamics simulations, we find neutron star crust to be very strong. It can support mountains on rotating neutron stars large enough to generate detectable gravitational waves. We believe that combing astronomical observations using photons, GW, and neutrinos, with laboratory experiments on nuclei, heavy ion collisions, and radioactive beams will fundamentally advance our knowledge of compact objects in the heavens, the dense phases of QCD, the origin of the elements, and of neutron rich matter.

Horowitz, C. J. [UTK/ORNL/Indiana University

2012-01-01T23:59:59.000Z

262

DARK MATTER AS AN ACTIVE GRAVITATIONAL AGENT IN CLOUD COMPLEXES  

SciTech Connect (OSTI)

We study the effect that the dark matter background (DMB) has on the gravitational energy content and, in general, on the star formation efficiency (SFE) of a molecular cloud (MC). We first analyze the effect that a dark matter halo, described by the Navarro-Frenk-White density profile, has on the energy budget of a spherical, homogeneous cloud located at different distances from the halo center. We found that MCs located in the innermost regions of a massive galaxy can feel a contraction force greater than their self-gravity due to the incorporation of the potential of the galaxy's dark matter halo. We also calculated analytically the gravitational perturbation that an MC produces over a uniform DMB (uniform at the scales of an MC) and how this perturbation will affect the evolution of the MC itself. The study shows that the star formation in an MC will be considerably enhanced if the cloud is located in a dense and low velocity dark matter environment. We confirm our results by measuring the SFE in numerical simulations of the formation and evolution of MCs within different DMBs. Our study indicates that there are situations where the dark matter's gravitational contribution to the evolution of the MCs should not be neglected.

Suarez-Madrigal, Andres; Ballesteros-Paredes, Javier; Colin, Pedro; D'Alessio, Paola, E-mail: a.suarez@crya.unam.mx [Centro de Radioastronomia y Astrofisica, Universidad Nacional Autonoma de Mexico, Apdo. Postal 72-3 (Xangari), Morelia, Michocan, Mexico C.P. 58089 (Mexico)

2012-04-01T23:59:59.000Z

263

Cooling of hot electrons in amorphous silicon  

SciTech Connect (OSTI)

Measurements of the cooling rate of hot carriers in amorphous silicon are made with a two-pump, one-probe technique. The experiment is simulated with a rate-equation model describing the energy transfer between a population of hot carriers and the lattice. An energy transfer rate proportional to the temperature difference is found to be consistent with the experimental data while an energy transfer independent of the temperature difference is not. This contrasts with the situation in crystalline silicon. The measured cooling rates are sufficient to explain the difficulty in observing avalanche effects in amorphous silicon.

Vanderhaghen, R.; Hulin, D.; Cuzeau, S.; White, J.O.

1997-07-01T23:59:59.000Z

264

Matter Waves and Electricity  

Science Journals Connector (OSTI)

Classical four-dimensional relativity gives a most natural and harmonious interpretation of the three basic phenomena of nature: gravity, electricity, and the wave structure of matter, provided that the basic assumptions of the Einsteinian theory are modified in two respects: (1) the fundamental invariant of the action principle is chosen as a quadratic instead of a linear function of the curvature components; (2) the static equilibrium of the world is replaced by a dynamic equilibrium. Electricity comes out as a second-order resonance effect of the matter waves. The matter waves are gravitational waves but superposed not on an empty Euclidean space but on a space of high average curvature.

Cornelius Lanczos

1942-06-01T23:59:59.000Z

265

The rheology and microstructure of dense suspensions of elastic capsules.  

SciTech Connect (OSTI)

We use a recently developed hybrid numerical technique [MacMeccan et al. (2009)] that combines a lattice-Boltzmann (LB) fluid solver with a finite element (FE) solid-phase solver to study suspensions of elastic capsules. The LB method recovers the Navier-Stokes hydrodynamics, while the linear FE method models the deformation of fluid-filled elastic capsules for moderate levels of deformation. The simulation results focus on accurately describing the suspension rheology, including the particle pressure, and relating these changes to changes in the microstructure. Simulations are performed with hundreds of particles in unbounded shear allowing an accurate description of the bulk suspension rheology and microstructure. In contrast to rigid spherical particles, elastic capsules are capable of producing normal stresses in the dilute limit. For dense suspensions, the first normal stress difference is of particular interest. The first normal stress difference, which is negative for dense rigid spherical suspensions, undergoes a sign change at moderate levels of deformation of the suspended capsules.

Reasor, Daniel (Georgia Institute of Tecnnology); Clausen, Jonathan; Aidun, Cyrus (Georgia Institute of Tecnnology)

2010-11-01T23:59:59.000Z

266

The Heart of Matter  

E-Print Network [OSTI]

In this article I trace the development of the human understanding of the "Heart of Matter" from early concepts of "elements" (or alternatively "Panchmahabhootas") to the current status of "quarks" and "leptons" as the fundamental constituents of matter, interacting together via exchange of the various force carrier particles called "gauge bosons" such as the photon, W/Z-boson etc. I would like to show how our understanding of the fundamental constituents of matter has gone hand in hand with our understanding of the fundamental forces in nature. I will also outline how the knowledge of particle physics at the "micro" scale of less than a Fermi(one millionth of a nanometer), enables us to offer explanations of Cosmological observations at the "macro" scale. Consequently these observations, may in turn, help us address some very fundamental questions of the Physics at the "Heart of the Matter".

Godbole, Rohini M

2010-01-01T23:59:59.000Z

267

The Heart of Matter  

E-Print Network [OSTI]

In this article I trace the development of the human understanding of the "Heart of Matter" from early concepts of "elements" (or alternatively "Panchmahabhootas") to the current status of "quarks" and "leptons" as the fundamental constituents of matter, interacting together via exchange of the various force carrier particles called "gauge bosons" such as the photon, W/Z-boson etc. I would like to show how our understanding of the fundamental constituents of matter has gone hand in hand with our understanding of the fundamental forces in nature. I will also outline how the knowledge of particle physics at the "micro" scale of less than a Fermi(one millionth of a nanometer), enables us to offer explanations of Cosmological observations at the "macro" scale. Consequently these observations, may in turn, help us address some very fundamental questions of the Physics at the "Heart of the Matter".

Rohini M. Godbole

2010-06-30T23:59:59.000Z

268

Atomic dark matter  

SciTech Connect (OSTI)

We propose that dark matter is dominantly comprised of atomic bound states. We build a simple model and map the parameter space that results in the early universe formation of hydrogen-like dark atoms. We find that atomic dark matter has interesting implications for cosmology as well as direct detection: Weak-scale dark atoms can accommodate hyperfine splittings of order 100 keV, consistent with the inelastic dark matter interpretation of the DAMA data while naturally evading direct detection bounds. Moreover, protohalo formation can be suppressed below M{sub proto} ? 10{sup 3}–10{sup 6}M{sub s}un for weak scale dark matter due to Ion-Radiation and Ion-Atom interactions in the dark sector.

Kaplan, David E.; Krnjaic, Gordan Z.; Rehermann, Keith R.; Wells, Christopher M., E-mail: dkaplan@pha.jhu.edu, E-mail: gordan@pha.jhu.edu, E-mail: keith@pha.jhu.edu, E-mail: cwells13@pha.jhu.edu [Department of Physics and Astronomy, Johns Hopkins University, 3400 North Charles Street, Baltimore, MD 21218-2686 (United States)

2010-05-01T23:59:59.000Z

269

Distinct optical properties of relativistically degenerate matter  

SciTech Connect (OSTI)

In this paper, we use the collisional quantum magnetohydrodynamic (CQMHD) model to derive the transverse dielectric function of a relativistically degenerate electron fluid and investigate various optical parameters, such as the complex refractive index, the reflection and absorption coefficients, the skin-depth and optical conductivity. In this model we take into accounts effects of many parameters such as the atomic-number of the constituent ions, the electron exchange, electron diffraction effect and the electron-ion collisions. Study of the optical parameters in the solid-density, the warm-dense-matter, the big-planetary core, and the compact star number-density regimes reveals that there are distinct differences between optical characteristics of the latter and the former cases due to the fundamental effects of the relativistic degeneracy and other quantum mechanisms. It is found that in the relativistic degeneracy plasma regime, such as found in white-dwarfs and neutron star crusts, matter possess a much sharper and well-defined step-like reflection edge beyond the x-ray electromagnetic spectrum, including some part of gamma-ray frequencies. It is also remarked that the magnetic field intensity only significantly affects the plasma reflectivity in the lower number-density regime, rather than the high density limit. Current investigation confirms the profound effect of relativistic degeneracy on optical characteristics of matter and can provide an important plasma diagnostic tool for studying the physical processes within the wide scope of quantum plasma regimes be it the solid-density, inertial-confined, or astrophysical compact stars.

Akbari-Moghanjoughi, M. [Department of Physics, Faculty of Sciences, Azarbaijan Shahid Madani University, Tabriz 51745-406 (Iran, Islamic Republic of); International Centre for Advanced Studies in Physical Sciences and Institute for Theoretical Physics, Ruhr University Bochum, Bochum D-44780 (Germany)

2014-06-15T23:59:59.000Z

270

Hot Pot Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Hot Pot Geothermal Area Hot Pot Geothermal Area (Redirected from Hot Pot Area) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Hot Pot Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (0) 9 Exploration Activities (6) 10 References Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"TERRAIN","zoom":6,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"500px","height":"300px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":40.922,"lon":-117.108,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

271

Storage capacity in hot dry rock reservoirs  

DOE Patents [OSTI]

A method of extracting thermal energy, in a cyclic manner, from geologic strata which may be termed hot dry rock. A reservoir comprised of hot fractured rock is established and water or other liquid is passed through the reservoir. The water is heated by the hot rock, recovered from the reservoir, cooled by extraction of heat by means of heat exchange apparatus on the surface, and then re-injected into the reservoir to be heated again. Water is added to the reservoir by means of an injection well and recovered from the reservoir by means of a production well. Water is continuously provided to the reservoir and continuously withdrawn from the reservoir at two different flow rates, a base rate and a peak rate. Increasing water flow from the base rate to the peak rate is accomplished by rapidly decreasing backpressure at the outlet of the production well in order to meet periodic needs for amounts of thermal energy greater than a baseload amount, such as to generate additional electric power to meet peak demands. The rate of flow of water provided to the hot dry rock reservoir is maintained at a value effective to prevent depletion of the liquid

Brown, Donald W. (Los Alamos, NM)

1997-01-01T23:59:59.000Z

272

How hot is radiation? Christopher Essexa)  

E-Print Network [OSTI]

. Thus radiation is a natural context in which to introduce nonequilibrium temperature. A properly as they exchange a heat flux JQ(12). Subsystem temperatures occur naturally in expres- sions for entropy productionHow hot is radiation? Christopher Essexa) Department of Applied Mathematics, University of Western

Berry, R. Stephen

273

Planetary science: Venusian hot flow anomalies  

Science Journals Connector (OSTI)

... on 22 March 2008, a space-weather event known as a hot flow anomaly (HFA). Such events occur when electric fields associated with the Sun's solar wind create ... the planet lacks a magnetic field, meaning that the bow shock, and so the HFA, would be much closer in. ...

2012-03-14T23:59:59.000Z

274

Record geothermal well drilled in hot granite  

Science Journals Connector (OSTI)

Record geothermal well drilled in hot granite ... Researchers there have completed the second of two of the deepest and hottest geothermal wells ever drilled. ... It may become the energy source for a small electrical generating power station serving nearby communities in New Mexico. ...

1981-09-07T23:59:59.000Z

275

Hot-dry-rock geothermal resource 1980  

SciTech Connect (OSTI)

The work performed on hot dry rock (HDR) geothermal resource evaluation, site characterization, and geophysical exploration techniques is summarized. The work was done by region (Far West, Pacific Northwest, Southwest, Rocky Mountain States, Midcontinent, and Eastern) and limited to the conterminous US.

Heiken, G.; Goff, F.; Cremer, G. (ed.)

1982-04-01T23:59:59.000Z

276

Redistributing hot gas around galaxies: do cool clouds signal a solution to the overcooling problem?  

E-Print Network [OSTI]

We present a pair of high-resolution smoothed particle hydrodynamics (SPH) simulations that explore the evolution and cooling behavior of hot gas around Milky-Way size galaxies. The simulations contain the same total baryonic mass and are identical other than their initial gas density distributions. The first is initialised with a low entropy hot gas halo that traces the cuspy profile of the dark matter, and the second is initialised with a high-entropy hot halo with a cored density profile as might be expected in models with pre-heating feedback. Galaxy formation proceeds in dramatically different fashion depending on the initial setup. While the low-entropy halo cools rapidly, primarily from the central region, the high-entropy halo is quasi-stable for ~4 Gyr and eventually cools via the fragmentation and infall of clouds from ~100 kpc distances. The low-entropy halo's X-ray surface brightness is ~100 times brighter than current limits and the resultant disc galaxy contains more than half of the system's baryons. The high-entropy halo has an X-ray brightness that is in line with observations, an extended distribution of pressure-confined clouds reminiscent of observed populations, and a final disc galaxy that has half the mass and ~50% more specific angular momentum than the disc formed in the low-entropy simulation. The final high-entropy system retains the majority of its baryons in a low-density hot halo. The hot halo harbours a trace population of cool, mostly ionised, pressure-confined clouds that contain ~10% of the halo's baryons after 10 Gyr of cooling. The covering fraction for HI and MgII absorption clouds in the high-entropy halo is ~0.4 and ~0.6, respectively, although most of the mass that fuels disc growth is ionised, and hence would be under counted in HI surveys.

Tobias Kaufmann; James S. Bullock; Ariyeh H. Maller; Taotao Fang; James Wadsley

2008-12-10T23:59:59.000Z

277

Nonexponential relaxations in dense microemulsion near the glasslike transition  

Science Journals Connector (OSTI)

Extensive quasielastic-light-scattering, small-angle neutron scattering, and neutron-spin-echo (NSE) spectroscopic measurements have been performed on a three-component microemulsion system containing bis(2-ethylhexylsulfosuccinate) (AOT) (surfactant), D2O, and decane (oil) at two temperatures in the one-phase region. By fixing the molar ratio of water to AOT at w=40.61, the average radius of spherical surfactant coated water droplets can be maintained at 58 A? with a polydispersity index of 22%. The volume fraction ? of the droplets can be continuously varied from 0.1 to 0.75, spanning the entire range from the dilute gas all the way to the close-packed glass by adjusting the oil content of the microemulsion. The static structure factors and the time-dependent density correlation functions of these densely packed spherical droplets were systematically measured as a function of the volume fraction.As ? increases from 0.1 to 0.75, the structure factor gradually evolves from a smooth function of the order unity into a highly oscillatory function, with the height of the first diffraction peak around 2 and higher, similar to that of a dense liquid. At the same time the time-dependent density correlation function exhibits pronounced nonexponential relaxation. The Kohlrausch-Williams-Watts (KWW) stretched exponential function, exp[-(t/T)?], has been shown to fit the density correlation function over most of the time range of the measurements, which covers nearly three decades, at Q values of about 10-3 A?-1, typical in a light scattering experiment. The exponent ?, starting from an initial value of unity at ?=0.1, gradually decreases to about 0.6 at ?c?0.65 and increases thereafter. The relaxation time T shows a trend to diverge at ???c, approximately following the Vogel-Fulcher law. These features bear striking similarity to a glasslike transition predicted by recent mode-mode coupling theories of dense liquids. The KWW function also fits very well the time-dependent density correlation function at ?=0.6, measured by NSE (Q?0.2 A?-1). Thus, the KWW function is shown to be valid for the Q range spanning from 0.001 to 0.2 A?-1. The relaxation time, to a good approximation, scales like Q-2/?.

Eric Y. Sheu; Sow-Hsin Chen; J. S. Huang; J. C. Sung

1989-06-01T23:59:59.000Z

278

Federal Energy Management Program: Solar Hot Water Resources and  

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

Solar Hot Water Solar Hot Water Resources and Technologies to someone by E-mail Share Federal Energy Management Program: Solar Hot Water Resources and Technologies on Facebook Tweet about Federal Energy Management Program: Solar Hot Water Resources and Technologies on Twitter Bookmark Federal Energy Management Program: Solar Hot Water Resources and Technologies on Google Bookmark Federal Energy Management Program: Solar Hot Water Resources and Technologies on Delicious Rank Federal Energy Management Program: Solar Hot Water Resources and Technologies on Digg Find More places to share Federal Energy Management Program: Solar Hot Water Resources and Technologies on AddThis.com... Energy-Efficient Products Technology Deployment Renewable Energy Federal Requirements Renewable Resources & Technologies

279

Federal Energy Management Program: Covered Product Category: Hot Food  

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

Hot Food Holding Cabinets to someone by E-mail Hot Food Holding Cabinets to someone by E-mail Share Federal Energy Management Program: Covered Product Category: Hot Food Holding Cabinets on Facebook Tweet about Federal Energy Management Program: Covered Product Category: Hot Food Holding Cabinets on Twitter Bookmark Federal Energy Management Program: Covered Product Category: Hot Food Holding Cabinets on Google Bookmark Federal Energy Management Program: Covered Product Category: Hot Food Holding Cabinets on Delicious Rank Federal Energy Management Program: Covered Product Category: Hot Food Holding Cabinets on Digg Find More places to share Federal Energy Management Program: Covered Product Category: Hot Food Holding Cabinets on AddThis.com... Energy-Efficient Products Federal Requirements Covered Product Categories

280

Microwave vs. Electric Kettle: Which Appliance Is in Hot Water...  

Energy Savers [EERE]

Microwave vs. Electric Kettle: Which Appliance Is in Hot Water in EnergyFaceoff Round 4? Microwave vs. Electric Kettle: Which Appliance Is in Hot Water in EnergyFaceoff Round 4?...

Note: This page contains sample records for the topic "hot dense matter" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


281

DOE ZERH Webinar: Efficient Hot Water Distribution II: How to...  

Energy Savers [EERE]

DOE ZERH Webinar: Efficient Hot Water Distribution II: How to Get it Right DOE ZERH Webinar: Efficient Hot Water Distribution II: How to Get it Right Watch the video or view the...

282

Sun-Sentinel Red hot email heats up Wasserman Schultz,  

E-Print Network [OSTI]

Sun-Sentinel Red hot email heats up Wasserman Schultz, West rift South Florida members of Congress take feud public July 20, 2011|By Anthony Man, Sun Sentinel Congressman Allen West's red hot response

Belogay, Eugene A.

283

Hot Water Heating System Operation and Energy Conservation  

E-Print Network [OSTI]

Based on an example of the reconstruction of a hot water heating system, this paper provides an analysis and comparison of the operations of hot water heating systems, including supply water temperature adjustment, flow adjustment during each...

Shao, Z.; Chen, H.; Wei, P.

2006-01-01T23:59:59.000Z

284

An Energy Policy Perspective on Solar Hot Water Equipment Mandates  

E-Print Network [OSTI]

An Energy Policy Perspective on Solar Hot Water Equipmentlast dol- ENERGY POLICY lar spent on solar equipment gaveENERGY POLICY tween a new house with solar hot water

Williams, Stephen F.

1981-01-01T23:59:59.000Z

285

Continuous Commissioning of a Central Chilled Water & Hot Water System  

E-Print Network [OSTI]

A central chilled water / hot water system provides cooling / heating energy from central utility plants to multiple customers (buildings) through campus distribution loops. To effectively transport the chilled water and hot water to the buildings...

Deng, S.; Turner, W. D.; Batten, T.; Liu, M.

2000-01-01T23:59:59.000Z

286

Solar Hot Water Resources and Technologies | Department of Energy  

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

Solar Hot Water Resources and Technologies Solar Hot Water Resources and Technologies Solar Hot Water Resources and Technologies October 7, 2013 - 11:49am Addthis Photo of a standalone solar hot water system standing in front of a clothesline with a backdrop of evergreen trees. This solar hot water system tracks sunlight using a standalone, single-axis mount to optimize hot water production for residential applications. This page provides a brief overview of solar hot water (SHW) technologies supplemented by specific information to apply SHW within the Federal sector. Overview Although a large variety of solar hot water systems exist, the basic technology is simple. A collector absorbs and transfers heat from the sun to water, which is stored in a tank until needed. Active solar heating systems use circulating pumps and controls. These are more expensive but

287

Numerical simulation on dense gas dispersion and fire characteristics after liquefied natural gas release.  

E-Print Network [OSTI]

??This PhD dissertation mainly studies the prediction, simulation and mitigation methods of the two main hazards in LNG (Liquefied Natural Gas) industry, LNG vapor dense… (more)

Sun, Biao

2012-01-01T23:59:59.000Z

288

Low-temperature catalyst activator: mechanism of dense carbon nanotube forest growth studied using synchrotron radiation  

Science Journals Connector (OSTI)

The mechanism of dense vertically aligned carbon nanotube growth achieved by a recently developed thermal chemical vapor deposition method was studied using synchrotron radiation spectroscopic techniques.

Takashima, A.

2014-05-22T23:59:59.000Z

289

Dense Granular Flows Sebastian Chialvo and Sankaran Sundaresan  

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

and Refinement and Refinement of a Comprehensive Model for Dense Granular Flows Sebastian Chialvo and Sankaran Sundaresan Princeton University This work is supported by DOE-UCR grant DE-FE0006932. Logo The NETL logotype illustrated on this page is the institutional signature for the U.S. Department of Energy, National Energy Technology Laboratory-NETL. Its function is to be the graphic identi cation for that organization. The relationship among the elements of this logo is essential to preserve this identity. The speci cations included on these pages will assist in the proper display of this logo and should be fol- lowed exactly. Questions concerning this logo and its application may be addressed to the NETL O ce of Public A airs Coordination, Contact.PublicA airs@NETL.DOE.GOV.

290

CORRELATING INFALL WITH DEUTERIUM FRACTIONATION IN DENSE CORES  

SciTech Connect (OSTI)

We present a survey of HCO{sup +} (3-2) observations pointed toward dense cores with previous measurements of N(N{sub 2}D{sup +})/N(N{sub 2}H{sup +}). Of the 26 cores in this survey, 5 show the spectroscopic signature of outward motion, 9 exhibit neither inward nor outward motion, 11 appear to be infalling, and 1 is not detected. We compare the degree of deuterium fractionation with infall velocities calculated from the HCO{sup +} spectra and find that those cores with [D]/[H] > 0.1 are more likely to have the signature of inward motions than cores with smaller [D]/[H] ratios. Infall motions are also much more common in cores with masses exceeding their thermal Jeans masses. The fastest infall velocity measured belongs to one of the two protostellar cores in our survey, L1521F, and the observed motions are typically on the order of the sound speed.

Schnee, Scott; Brunetti, Nathan; Friesen, Rachel [National Radio Astronomy Observatory, 520 Edgemont Road, Charlottesville, VA 22903 (United States); Di Francesco, James; Johnstone, Doug; Pon, Andy [National Research Council Canada, Herzberg Institute of Astrophysics, 5071 West Saanich Road Victoria, BC V9E 2E7 (Canada); Caselli, Paola, E-mail: sschnee@nrao.edu [School of Physics and Astronomy, University of Leeds, Leeds LS2 9JT (United Kingdom)

2013-11-10T23:59:59.000Z

291

Long Range Bond-Bond Correlations in Dense Polymer Solutions  

Science Journals Connector (OSTI)

The scaling of the bond-bond correlation function P1(s) along linear polymer chains is investigated with respect to the curvilinear distance s along the flexible chain and the monomer density ? via Monte Carlo and molecular dynamics simulations. Surprisingly, the correlations in dense three-dimensional solutions are found to decay with a power law P1(s)?s-? with ?=3/2 and the exponential behavior commonly assumed is clearly ruled out for long chains. In semidilute solutions, the density dependent scaling of P1(s)?g-?0(s/g)-? with ?0=2-2?=0.824 (?=0.588 being Flory's exponent) is set by the number of monomers g(?) in an excluded volume blob. Our computational findings compare well with simple scaling arguments and perturbation calculation. The power-law behavior is due to self-interactions of chains caused by the chain connectivity and the incompressibility of the melt.

J. P. Wittmer; H. Meyer; J. Baschnagel; A. Johner; S. Obukhov; L. Mattioni; M. Müller; A. N. Semenov

2004-09-29T23:59:59.000Z

292

Fully kinetic simulations of megajoule-scale dense plasma focus  

Science Journals Connector (OSTI)

Dense plasma focus (DPF) Z-pinch devices are sources of copious high energy electrons and ions x-rays and neutrons. Megajoule-scale DPFs can generate 1012 neutrons per pulse in deuterium gas through a combination of thermonuclear and beam-target fusion. However the details of the neutron production are not fully understood and past optimization efforts of these devices have been largely empirical. Previously we reported on the first fully kinetic simulations of a kilojoule-scale DPF and demonstrated that both kinetic ions and kinetic electrons are needed to reproduce experimentally observed features such as charged-particle beam formation and anomalous resistivity. Here we present the first fully kinetic simulation of a MegaJoule DPF with predicted ion and neutron spectra neutron anisotropy neutron spot size and time history of neutron production. The total yield predicted by the simulation is in agreement with measured values validating the kinetic model in a second energy regime.

M. May

2014-01-01T23:59:59.000Z

293

Equation of state and optical properties of warm dense helium  

Science Journals Connector (OSTI)

We investigate the physical properties of warm dense helium under the conditions found in the atmospheres of cool white dwarfs using both a chemical model and ab initio simulations. A chemical model is developed for the low-ionization limit that includes the species He, He+, He2+, and electrons, and interactions between them. The ab initio calculations consist in quantum molecular dynamics (QMD) simulations. We use the generalized gradient approximation (GGA) to calculate the equation of state and the electrical and optical properties within the linear response theory. We further use an exact exchange hybrid (PBE0) density functional as well as the GW approximation to estimate the uncertainties on the electrical and optical properties resulting from the GGA approximation. While both the chemical model and the QMD simulations are in excellent agreement with the measured equation of state, a qualitative discrepancy exists with the measured conductivity.

P. M. Kowalski, S. Mazevet, D. Saumon, and M. Challacombe

2007-08-10T23:59:59.000Z

294

Molecular dynamics simulations of optical conductivity of dense plasmas  

Science Journals Connector (OSTI)

The optical conductivity ?(?) for dense Coulomb systems is investigated using molecular dynamics simulations on the basis of pseudopotentials to mimic quantum effects. Starting from linear response theory, the response in the long-wavelength limit k=0 can be expressed by different types of autocorrelation functions (ACF’s) such as the current ACF, the force ACF, or the charge density ACF. Consistent simulation data for transverse as well as longitudinal ACF’s are shown which are based on calculations with high numerical accuracy. Results are compared with perturbation expansions which are restricted to small values of the plasma parameter. The relevance with respect to a quantum Coulomb plasma is discussed. Finally, results are presented showing a consistent description of these model plasmas in comparison to quantum statistical approaches and to experimental data.

I. Morozov, H. Reinholz, G. Röpke, A. Wierling, and G. Zwicknagel

2005-06-22T23:59:59.000Z

295

Detachment Faulting & Geothermal Resources- Pearl Hot Spring, NV  

Broader source: Energy.gov [DOE]

Detachment Faulting & Geothermal Resources - Pearl Hot Spring, NV presentation at the April 2013 peer review meeting held in Denver, Colorado.

296

Jaloro': A New Multiple Virus Resistant Hot Yellow Jalapeno Pepper.  

E-Print Network [OSTI]

, with four replications, separated by Duncan's Multiple Range Test, 5% level. 2 Pungency rating: 10 = super hot,S = mild, 1 = nonpungent. Table 7. Comparative performance test of 'Jaloro' compared with other jalapenos, spring 1990, TAES-Weslaco, Texas..., with four replications, separated by Duncan's Multiple Range Test, 5% level. 2 Pungency rating: 10 = super hot,S = mild, 1 = nonpungent. Table 7. Comparative performance test of 'Jaloro' compared with other jalapenos, spring 1990, TAES-Weslaco, Texas...

Villalon, Benigno

1992-01-01T23:59:59.000Z

297

Current and Perspective Applications of Dense Plasma Focus Devices  

Science Journals Connector (OSTI)

Dense Plasma Focus (DPF) devices' applications which are intended to support the main?stream large?scale nuclear fusion programs (NFP) from one side (both in fundamental problems of Dense Magnetized Plasma physics and in its engineering issues) as well as elaborated for an immediate use in a number of fields from the other one are described. In the first direction such problems as self?generated magnetic fields implosion stability of plasma shells having a high aspect ratio etc. are important for the Inertial Confinement Fusion (ICF) programs (e.g. as NIF) whereas different problems of current disruption phenomenon plasma turbulence mechanisms of generation of fast particles and neutrons in magnetized plasmas are of great interest for the large devices of the Magnetic Plasma Confinement—MPC (e.g. as ITER). In a sphere of the engineering problems of NFP it is shown that in particular the radiation material sciences have DPF as a very efficient tool for radiation tests of prospect materials and for improvement of their characteristics. In the field of broad?band current applications some results obtained in the fields of radiation material sciences radiobiology nuclear medicine express Neutron Activation Analysis (including a single?shot interrogation of hidden illegal objects) dynamic non?destructive quality control X?Ray microlithography and micromachining and micro?radiography are presented. As the examples of the potential future applications it is proposed to use DPF as a powerful high?flux neutron source to generate very powerful pulses of neutrons in the nanosecond (ns) range of its duration for innovative experiments in nuclear physics for the goals of radiation treatment of malignant tumors for neutron tests of materials of the first wall blankets and NFP device's constructions (with fluences up to 1 dpa per a year term) and ns pulses of fast electrons neutrons and hard X?Rays for brachytherapy.

V. A. Gribkov

2008-01-01T23:59:59.000Z

298

General trend for pressurized superconducting hydrogen-dense materials  

SciTech Connect (OSTI)

The long-standing prediction that hydrogen can assume a metallic state under high pressure, combined with arguments put forward more recently that this state might even be superconducting up to high temperatures, continues to spur tremendous research activities toward the experimental realization of metallic hydrogen. These efforts have however so far been impeded by the enormous challenges associated with the exceedingly large required pressure. Hydrogen-dense materials, of the MH{sub 4} form (where M can be, e.g., Si, Ge, or Sn) or of the MH{sub 3} form (with M being, e.g., Al, Sc, Y, or La), allow for the rather exciting opportunity to carry out a proxy study of metallic hydrogen and associated high-temperature superconductivity at pressures within the reach of current techniques. At least one experimental report indicates that a superconducting state might have been observed already in SiH{sub 4}, and several theoretical studies have predicted superconductivity in pressurized hydrogen-rich materials; however, no systematic dependence on the applied pressure has yet been identified so far. In the present work, we have used first-principles methods in an attempt to predict the superconducting critical temperature (T{sub c}) as a function of pressure (P) for three metal-hydride systems of the MH{sub 3} form, namely ScH{sub 3}, YH{sub 3}, and LaH{sub 3}. By comparing the obtained results, we are able to point out a general trend in the T{sub c}-dependence on P. These gained insights presented here are likely to stimulate further theoretical studies of metallic phases of hydrogen-dense materials and should lead to new experimental investigations of their superconducting properties.

Kim, D. Y.; Scheicher, R. H.; Mao, Ho-kwang; Kang, T. W.; Ahuja, R.

2010-01-01T23:59:59.000Z

299

Cosmological Landscape From Nothing: Some Like It Hot  

E-Print Network [OSTI]

We suggest a novel picture of the quantum Universe -- its creation is described by the {\\em density matrix} defined by the Euclidean path integral. This yields an ensemble of universes -- a cosmological landscape -- in a mixed state which is shown to be dynamically more preferable than the pure quantum state of the Hartle-Hawking type. The latter is dynamically suppressed by the infinitely large positive action of its instanton, generated by the conformal anomaly of quantum fields within the cosmological bootstrap (the self-consistent back reaction of hot matter). This bootstrap suggests a solution to the problem of boundedness of the on-shell cosmological action and eliminates the infrared catastrophe of small cosmological constant in Euclidean quantum gravity. The cosmological landscape turns out to be limited to a bounded range of the cosmological constant $\\Lambda_{\\rm min}\\leq \\Lambda \\leq \\Lambda_{\\rm max}$. The domain $\\Lambdalandscape. The dependence of the cosmological constant range on particle phenomenology suggests a possible dynamical selection mechanism for the landscape of string vacua.

A. O. Barvinsky; A. Yu. Kamenshchik

2006-09-13T23:59:59.000Z

300

Control, automation and the hot rolling of steel  

Science Journals Connector (OSTI)

...Shercliff and M. J. Stowell Control, automation and the hot rolling of steel P.J...Rugby CV21 1BU, UK The current state of automation and control for hot rolling mills...mills|rolling mill models| Control, automation and the hot rolling of steel By P...

1999-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "hot dense matter" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


301

OptimizingResourceUtilizationandTestability Using Hot Potato Techniques  

E-Print Network [OSTI]

OptimizingResourceUtilizationandTestability Using Hot Potato Techniques Miodrag Potkonjak Sujit Dey C&C Research Laboratories, NEC USA, Princeton, NJ 08540 ABSTRACT This paper introduces hot potato reduced using new technique. It is also dem- onstrated how hot potato techniques can be effectively used

Potkonjak, Miodrag

302

Moduli decay in the hot early Universe  

E-Print Network [OSTI]

We consider moduli fields interacting with thermalized relativistic matter. We determine the temperature dependence of their damping rate and find it is dominated by thermal effects in the high temperature regime, i.e. for temperatures larger than their mass. For a simple scalar model the damping rate is expressed through the known matter bulk viscosity. The high temperature damping rate is always smaller than the Hubble rate, so that thermal effects are not sufficient for solving the cosmological moduli problem.

Dietrich Bodeker

2006-06-01T23:59:59.000Z

303

Materials/Condensed Matter  

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

Materials/Condensed Matter Print Materials/Condensed Matter Print Materials research provides the foundation on which the economic well being of our high-tech society rests. The impact of advanced materials ranges dramatically over every aspect of our modern world from the minutiae of daily life to the grand scale of our national economy. Invariably, however, breakthroughs to new technologies trace their origin both to fundamental research in the basic properties of condensed matter and to applied research aimed at manipulating properties (structural, physical, chemical, electrical, magnetic, optical, etc.). Increasingly, the frontiers of materials research include materials that are "strongly correlated," characterized by strong coupling between a material's electrons with other electrons, magnetism, or the material lattice itself. This coupling often results in novel behavior, such as superconductivity, that may lead to technologically important applications.

304

Thermodynamics of clusterized matter  

E-Print Network [OSTI]

Thermodynamics of clusterized matter is studied in the framework of statistical models with non-interacting cluster degrees of freedom. At variance with the analytical Fisher model, exact Metropolis simulation results indicate that the transition from homogeneous to clusterized matter lies along the $\\rho=\\rho_0$ axis at all temperatures and the limiting point of the phase diagram is not a critical point even if the surface energy vanishes at this point. Sensitivity of the inferred phase diagram to the employed statistical framework in the case of finite systems is discussed by considering the grand-canonical and constant-pressure canonical ensembles. A Wigner-Seitz formalism in which the fragment charge is neutralized by an uniform electron distribution allows to build the phase diagram of neutron star matter.

Ad. R. Raduta; F. Gulminelli

2009-02-28T23:59:59.000Z

305

Hot-water power from the earth  

SciTech Connect (OSTI)

This article examines geothermal sites on the West Coast in order to show the progress that has been made in converting geothermal energy into usable electric power. Only about 0.5% of the earth's geothermal reserve can be brought to the surface as dry steam. California's Imperial Valley is possibly the largest geothermal resource in the US. Three demonstration generating plants are each producing between 10 and 14 MW of power near the valley's Salton Sea. The high-temperature water (above 410/sup 0/F) at Brawley is drawn from wells tapping the subterranean reservoir. It is proposed that hot-water power will be economical when methods are found to extract maximum energy from a geothermal deposit and to control clogging and corrosion caused by minerals dissolved in the hot fluid.

Not Available

1984-02-01T23:59:59.000Z

306

Hot clamp design for LMFBR piping systems  

SciTech Connect (OSTI)

Thin-wall, large-diameter piping for liquid metal fast breeder reactor (LMFBR) plants can be subjected to significant thermal transients during reactor scrams. To reduce local thermal stresses, an insulated cold clamp was designed for the fast flux test facility and was also applied to some prototype reactors thereafter. However, the cost minimization of LMFBR requires much simpler designs. This paper presents a hot clamp design concept, which uses standard clamp halves directly attached to the pipe surface leaving an initial gap. Combinations of flexible pipe and rigid clamp achieved a self-control effect on clamp-induced pipe stresses due to the initial gap. A 3-D contact and inelastic history analysis were performed to verify the hot clamp concept. Considerations to reduce the initial stress at installation, to mitigate the clamp restraint on the pipe expansion during thermal shocks, and to maintain the pipe-clamp stiffness desired during a seismic event were discussed.

Kobayashi, T.; Tateishi, M. (Nippon MARC Co., Ltd., Tokyo (Japan))

1993-02-01T23:59:59.000Z

307

Enabling Technologies for Ceramic Hot Section Components  

SciTech Connect (OSTI)

Silicon-based ceramics are attractive materials for use in gas turbine engine hot sections due to their high temperature mechanical and physical properties as well as lower density than metals. The advantages of utilizing ceramic hot section components include weight reduction, and improved efficiency as well as enhanced power output and lower emissions as a result of reducing or eliminating cooling. Potential gas turbine ceramic components for industrial, commercial and/or military high temperature turbine applications include combustor liners, vanes, rotors, and shrouds. These components require materials that can withstand high temperatures and pressures for long duration under steam-rich environments. For Navy applications, ceramic hot section components have the potential to increase the operation range. The amount of weight reduced by utilizing a lighter gas turbine can be used to increase fuel storage capacity while a more efficient gas turbine consumes less fuel. Both improvements enable a longer operation range for Navy ships and aircraft. Ceramic hot section components will also be beneficial to the Navy's Growth Joint Strike Fighter (JSF) and VAATE (Versatile Affordable Advanced Turbine Engines) initiatives in terms of reduced weight, cooling air savings, and capability/cost index (CCI). For DOE applications, ceramic hot section components provide an avenue to achieve low emissions while improving efficiency. Combustors made of ceramic material can withstand higher wall temperatures and require less cooling air. Ability of the ceramics to withstand high temperatures enables novel combustor designs that have reduced NO{sub x}, smoke and CO levels. In the turbine section, ceramic vanes and blades do not require sophisticated cooling schemes currently used for metal components. The saved cooling air could be used to further improve efficiency and power output. The objectives of this contract were to develop technologies critical for ceramic hot section components for gas turbine engines. Significant technical progress has been made towards maturation of the EBC and CMC technologies for incorporation into gas turbine engine hot-section. Promising EBC candidates for longer life and/or higher temperature applications relative to current state of the art BSAS-based EBCs have been identified. These next generation coating systems have been scaled-up from coupons to components and are currently being field tested in Solar Centaur 50S engine. CMC combustor liners were designed, fabricated and tested in a FT8 sector rig to demonstrate the benefits of a high temperature material system. Pretest predictions made through the use of perfectly stirred reactor models showed a 2-3x benefit in CO emissions for CMC versus metallic liners. The sector-rig test validated the pretest predictions with >2x benefit in CO at the same NOx levels at various load conditions. The CMC liners also survived several trip shut downs thereby validating the CMC design methodology. Significant technical progress has been made towards incorporation of ceramic matrix composites (CMC) and environmental barrier coatings (EBC) technologies into gas turbine engine hot-section. The second phase of the program focused on the demonstration of a reverse flow annular CMC combustor. This has included overcoming the challenges of design and fabrication of CMCs into 'complex' shapes; developing processing to apply EBCs to 'engine hardware'; testing of an advanced combustor enabled by CMCs in a PW206 rig; and the validation of performance benefits against a metal baseline. The rig test validated many of the pretest predictions with a 40-50% reduction in pattern factor compared to the baseline and reductions in NOx levels at maximum power conditions. The next steps are to develop an understanding of the life limiting mechanisms in EBC and CMC materials, developing a design system for EBC coated CMCs and durability testing in an engine environment.

Venkat Vedula; Tania Bhatia

2009-04-30T23:59:59.000Z

308

Dealing in practice with hot-spots  

E-Print Network [OSTI]

The hot-spot phenomenon is a relatively frequent problem occurring in current photovoltaic generators. It entails both a risk for the photovoltaic module's lifetime and a decrease in its operational efficiency. Nevertheless, there is still a lack of widely accepted procedures for dealing with them in practice. This paper presents the IES-UPM observations on 200 affected modules. Visual and infrared inspection, electroluminescence, peak power and operating voltage tests have been accomplished. Hot-spot observation procedures and well defined acceptance and rejection criteria are proposed, addressing both the lifetime and the operational efficiency of the modules. The operating voltage has come out as the best parameter to control effective efficiency losses for the affected modules. This procedure is oriented to its possible application in contractual frameworks.

Moretón, Rodrigo; Leloux, Jonathan; Carrillo, José Manuel

2014-01-01T23:59:59.000Z

309

Hot Springs Wind Farm | Open Energy Information  

Open Energy Info (EERE)

Wind Farm Wind Farm Jump to: navigation, search Name Hot Springs Wind Farm Facility Hot Springs Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner Idaho Windfarms / John Deere Developer Idaho Windfarms Energy Purchaser Idaho Power Location Elmore County ID Coordinates 42.95°, -115.63° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":42.95,"lon":-115.63,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

310

Residential hot water distribution systems: Roundtablesession  

SciTech Connect (OSTI)

Residential building practice currently ignores the lossesof energy and water caused by the poor design of hot water systems. Theselosses include: combustion and standby losses from water heaters, thewaste of water (and energy) while waiting for hot water to get to thepoint of use; the wasted heat as water cools down in the distributionsystem after a draw; heat losses from recirculation systems and thediscarded warmth of waste water as it runs down the drain. Severaltechnologies are available that save energy (and water) by reducing theselosses or by passively recovering heat from wastewater streams and othersources. Energy savings from some individual technologies are reported tobe as much as 30 percent. Savings calculations of prototype systemsincluding bundles of technologies have been reported above 50 percent.This roundtable session will describe the current practices, summarizethe results of past and ongoing studies, discuss ways to think about hotwater system efficiency, and point to areas of future study. We will alsorecommend further steps to reduce unnecessary losses from hot waterdistribution systems.

Lutz, James D.; Klein, Gary; Springer, David; Howard, Bion D.

2002-08-01T23:59:59.000Z

311

Hot Lake Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Hot Lake Geothermal Area Hot Lake Geothermal Area Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Hot Lake Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (0) 9 Exploration Activities (2) 10 References Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"TERRAIN","zoom":6,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"500px","height":"300px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":42.33333333,"lon":-118.6,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

312

Final Report for DOE grant project FG02-07ER41458 [Dense Quark Matter in Magnetic Fields  

SciTech Connect (OSTI)

Final Report for DOE grant DE-FG02-07ER41458. This grant was originally a three-year project. However, this final report summarizes the results of the first two years, as at the end of the second year of the grant the PIs moved to a new university and the grant was closed. The work done under the first two years of the DOE grant led to several papers and presentations. It also served to train one undergraduate and three graduate students.

Incera, Vivian

2012-01-24T23:59:59.000Z

313

Fast six-channel pyrometer for warm-dense-matter experiments with intense heavy-ion beams  

E-Print Network [OSTI]

USA M. I. Kulish, V. Mintsev, D. N. Nikolaev, and V. Ya.USA M. I. Kulish, V. Mintsev, D. N. Nikolaev, and V. Ya.

Ni, P.A.

2008-01-01T23:59:59.000Z

314

Toward a physics design for NDCX-II, an ion accelerator for warm dense matter and HIF target physics studies  

E-Print Network [OSTI]

Berkeley CA USA Princeton Plasma Physics Laboratory,Laboratory, and Princeton Plasma Physics Laboratory, isDE-AC03-76SF00098, the Princeton Plasma Physics Laboratory

Friedman, A.

2008-01-01T23:59:59.000Z

315

At the heart of the matter: the origin of bulgeless dwarf galaxies and Dark Matter cores  

E-Print Network [OSTI]

For almost two decades the properties of "dwarf" galaxies have challenged the Cold Dark Matter (CDM) paradigm of galaxy formation. Most observed dwarf galaxies consists of a rotating stellar disc embedded in a massive DM halo with a near constant-density core. Yet, models based on the CDM scenario invariably form galaxies with dense spheroidal stellar "bulges" and steep central DM profiles, as low angular momentum baryons and DM sink to the center of galaxies through accretion and repeated mergers. Processes that decrease the central density of CDM halos have been identified, but have not yet reconciled theory with observations of present day dwarfs. This failure is potentially catastrophic for the CDM model, possibly requiring a different DM particle candidate. This Letter presents new hydrodynamical simulations in a Lambda$CDM framework where analogues of dwarf galaxies, bulgeless and with a shallow central DM profile, are formed. This is achieved by resolving the inhomogeneous interstellar medium, resulting in strong outflows from supernovae explosions which remove low angular momentum gas. This inhibits the formation of bulges and decreases the dark-matter density to less than half within the central kiloparsec. Realistic dwarf galaxies are thus shown to be a natural outcome of galaxy formation in the CDM scenario.

Fabio Governato; Chris Brook; Lucio Mayer; Alyson Brooks; George Rhee; James Wadsley; Patrik Jonsson; Beth Willman; Greg Stinson; Thomas Quinn; Piero Madau

2009-11-11T23:59:59.000Z

316

Bulk viscosity of QCD matter near the critical temperature  

E-Print Network [OSTI]

Kubo's formula relates bulk viscosity to the retarded Green's function of the trace of the energy-momentum tensor. Using low energy theorems of QCD for the latter we derive the formula which relates the bulk viscosity to the energy density and pressure of hot matter. We then employ the available lattice QCD data to extract the bulk viscosity as a function of temperature. We find that close to the deconfinement temperature bulk viscosity becomes large, with viscosity-to-entropy ratio zeta/s about 1.

D. Kharzeev; K. Tuchin

2007-05-29T23:59:59.000Z

317

Tight bonds between sterile neutrinos and dark matter  

E-Print Network [OSTI]

Despite the astonishing success of standard $\\Lambda$CDM cosmology, there is mounting evidence for a tension with observations at small and intermediate scales. We introduce a simple model where both cold dark matter (DM) and sterile neutrinos are charged under a new $U(1)_X$ gauge interaction. The resulting DM self-interactions resolve the tension with the observed abundances and internal density structures of dwarf galaxies. At the ame time, the sterile neutrinos can account for both the small hot DM component favored by cosmological observations and the neutrino anomalies found in short-baseline experiments.

Torsten Bringmann; Jasper Hasenkamp; Joern Kersten

2014-07-31T23:59:59.000Z

318

Is a Simple Collisionless Relic Dark Matter Particle Ruled Out?  

E-Print Network [OSTI]

The central densities of dark matter (DM) halos are much lower than predicted in cold DM models of structure formation. Confirmation that they have cores with a finite central density would allow us to rule out many popular types of collisionless particle as candidates for DM. Any model that leads to cusped halos (such as cold DM) is already facing serious difficulties on small scales and hot DM models have been excluded. Here I show that fermionic warm DM is inconsistent with the wide range of phase space densities in the DM halos of well-observed nearby galaxies.

J. A. Sellwood

2000-04-26T23:59:59.000Z

319

Separation of the unsaponifiable matter from cottonseed oil by adsorption  

E-Print Network [OSTI]

oxide. All the results they obtained were in accordance with the theory that the number of double bonds was responsible for the degree of adsorption. They concluded tnat with aluminium oxide their method of separation was only applicable to sterols..., in a ratio 5 crude oil to I silica gel by weight, resulted in the removal of moxe than 50 pex cent of the unsaponifiable matter. Hot 90/ isopropanol was found to be the best of a number of solvents tested for desorbing the material. The solvent...

Zeitoun, Mohamed Ali

2012-06-07T23:59:59.000Z

320

Densely Ionizing Radiation Acts via the Microenvironment to Promote Aggressive Trp53-Null Mammary Carcinomas  

Science Journals Connector (OSTI)

...Radiation Acts via the Microenvironment to Promote Aggressive Trp53-Null Mammary...changes from radiation contribute strongly to carcinogenic potential. Densely ionizing...radiation chimera in which mice were exposed to densely ionizing 350 MeV/amu Si-particles...

Irineu Illa-Bochaca; Haoxu Ouyang; Jonathan Tang; Christopher Sebastiano; Jian-Hua Mao; Sylvain V. Costes; Sandra Demaria; Mary Helen Barcellos-Hoff

2014-12-01T23:59:59.000Z

Note: This page contains sample records for the topic "hot dense matter" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


321

SPHERES WITH POSITIVE CURVATURE AND NEARLY DENSE ORBITS FOR THE GEODESIC FLOW.  

E-Print Network [OSTI]

SPHERES WITH POSITIVE CURVATURE AND NEARLY DENSE ORBITS FOR THE GEODESIC, that is within " of the round metric and has a geodesic for whi* *ch the corresponding orbit of the geodesic flow is "-dense in the unit tangent bundle. Moreover* *, for any " > 0, we construct

Burns, Keith

322

A G IDEAL OF COMPACT SETS STRICTLY ABOVE THE NOWHERE DENSE IDEAL IN THE TUKEY ORDER  

E-Print Network [OSTI]

A G IDEAL OF COMPACT SETS STRICTLY ABOVE THE NOWHERE DENSE IDEAL IN THE TUKEY ORDER JUSTIN TATCH above NWD in the Tukey order. Here NWD is the collection of all compact nowhere dense subsets directed partial orders (P, P ) and (Q, Q), we say that P is Tukey reducible to Q, in symbols P T Q

Solecki, Slawomir

323

A G # IDEAL OF COMPACT SETS STRICTLY ABOVE THE NOWHERE DENSE IDEAL IN THE TUKEY  

E-Print Network [OSTI]

A G # IDEAL OF COMPACT SETS STRICTLY ABOVE THE NOWHERE DENSE IDEAL IN THE TUKEY ORDER JUSTIN TATCH is strictly above NWD in the Tukey order. Here NWD is the collection of all compact nowhere dense subsets directed partial orders (P, # P ) and (Q, #Q ), we say that P is Tukey reducible to Q, in symbols P # T Q

Moore, Justin Tatch

324

A G IDEAL OF COMPACT SETS STRICTLY ABOVE THE NOWHERE DENSE IDEAL IN THE TUKEY  

E-Print Network [OSTI]

A G IDEAL OF COMPACT SETS STRICTLY ABOVE THE NOWHERE DENSE IDEAL IN THE TUKEY ORDER JUSTIN TATCH above NWD in the Tukey order. Here NWD is the collection of all compact nowhere dense subsets directed partial orders (P, P ) and (Q, Q), we say that P is Tukey reducible to Q, in symbols P T Q

Moore, Justin Tatch

325

ccsd00000500 Microscopic calculation of neutrino mean free path inside hot neutron matter  

E-Print Network [OSTI]

a selfconsistent scheme based on the Brueckner#21;Hartree#21;Fock approxima- tion. We employ the nucleon interaction and the neutrino mean free path including short and long range correlations given by the Brueckner path, neutron star, supernovae, Brueckner#21;Hartree#21;Fock, RPA I. INTRODUCTION Neutrinos play

326

Antihelium from Dark Matter  

E-Print Network [OSTI]

Cosmic-ray anti-nuclei provide a promising discovery channel for the indirect detection of particle dark matter. Hadron showers produced by the pair-annihilation or decay of Galactic dark matter generate anti-nucleons which can in turn form light anti-nuclei. Previous studies have only focused on the spectrum and flux of low energy antideuterons which, although very rarely, are occasionally also produced by cosmic-ray spallation. Heavier elements ($A\\geq3$) have instead entirely negligible astrophysical background and a primary yield from dark matter which could be detectable by future experiments. Using a Monte Carlo event generator and an event-by-event phase space analysis, we compute, for the first time, the production spectrum of \\antihe and \\antiT for dark matter annihilating or decaying to $b\\bar{b}$ and ${W^+}{W^-}$ final states. We then employ a semi-analytic model of interstellar and heliospheric propagation to calculate the \\antihe flux as well as to provide tools to relate the anti-helium spectrum...

Carlson, Eric; Linden, Tim; Profumo, Stefano; Ibarra, Alejandro; Wild, Sebastian

2014-01-01T23:59:59.000Z

327

Antihelium from dark matter  

Science Journals Connector (OSTI)

Cosmic-ray antinuclei provide a promising discovery channel for the indirect detection of particle dark matter. Hadron showers produced by the pair annihilation or decay of Galactic dark matter generate antinucleons which can in turn form light antinuclei. Previous studies have only focused on the spectrum and flux of low energy antideuterons which, although very rarely, are occasionally also produced by cosmic-ray spallation. Heavier elements (A?3) have instead entirely negligible astrophysical background and a primary yield from dark matter which could be detectable by future experiments. Using a Monte Carlo event generator and an event-by-event phase space analysis, we compute, for the first time, the production spectrum of He¯3 and H¯3 for dark matter annihilating or decaying to bb¯ and W+W? final states. We then employ a semianalytic model of interstellar and heliospheric propagation to calculate the He¯3 flux as well as to provide tools to relate the antihelium spectrum corresponding to an arbitrary antideuteron spectrum. Finally, we discuss prospects for current and future experiments, including GAPS and AMS-02.

Eric Carlson; Adam Coogan; Tim Linden; Stefano Profumo; Alejandro Ibarra; Sebastian Wild

2014-04-08T23:59:59.000Z

328

Tunguska Dark Matter Ball  

E-Print Network [OSTI]

It is suggested that the Tunguska event in June 1908 cm-large was due to a cm-large ball of a condensate of bound states of 6 top and 6 anti-top quarks containing highly compressed ordinary matter. Such balls are supposed to make up the dark matter as we earlier proposed. The expected rate of impact of this kind of dark matter ball with the earth seems to crudely match a time scale of 200 years between the impacts. The main explosion of the Tunguska event is explained in our picture as material coming out from deep within the earth, where it has been heated and compressed by the ball penetrating to a depth of several thousand km. Thus the effect has some similarity with volcanic activity as suggested by Kundt. We discuss the possible identification of kimberlite pipes with earlier Tunguska-like events. A discussion of how the dark matter balls may have formed in the early universe is also given.

C. D. Froggatt; H. B. Nielsen

2014-03-27T23:59:59.000Z

329

Tunguska Dark Matter Ball  

E-Print Network [OSTI]

It is suggested that the Tunguska event in June 1908 cm-large was due to a cm-large ball of a condensate of bound states of 6 top and 6 anti-top quarks containing highly compressed ordinary matter. Such balls are supposed to make up the dark matter as we earlier proposed. The expected rate of impact of this kind of dark matter ball with the earth seems to crudely match a time scale of 200 years between the impacts. The main explosion of the Tunguska event is explained in our picture as material coming out from deep within the earth, where it has been heated and compressed by the ball penetrating to a depth of several thousand km. Thus the effect has some similarity with volcanic activity as suggested by Kundt. We discuss the possible identification of kimberlite pipes with earlier Tunguska-like events. A discussion of how the dark matter balls may have formed in the early universe is also given.

Froggatt, C D

2014-01-01T23:59:59.000Z

330

Matter & Energy Nanotechnology  

E-Print Network [OSTI]

to electrical energy in order to power electronic devices, these results point to an advantage in reducingSee Also: Matter & Energy Nanotechnology Materials Science Technology Energy Technology Civil of potential functionalities, ranging from single-nanowire lasers and LEDs to more complex devices

Espinosa, Horacio D.

331

Matter & Energy Nanotechnology  

E-Print Network [OSTI]

See also: Matter & Energy Nanotechnology Civil Engineering Chemistry Computers & Math Computer www.carbodeon.com Nanotechnology afm Perform better live cell research! Non-invasive, in-liquid AFM cures Had flu? You m Science News Share Blog Cite Health & Medicine Mind & Brain Plants & Animals Earth

Espinosa, Horacio D.

332

Matter & Energy Wind Energy  

E-Print Network [OSTI]

See Also: Matter & Energy Wind Energy Energy Technology Physics Nuclear Energy Petroleum 27, 2012) -- Energy flowing from large-scale to small-scale places may be prevented from flowing, indicating that there are energy flows from large to small scale in confined space. Indeed, under a specific

Shepelyansky, Dima

333

Matter & Energy Solar Energy  

E-Print Network [OSTI]

See Also: Matter & Energy Solar Energy· Electronics· Materials Science· Earth & Climate Energy and the Environment · Renewable Energy· Environmental Science · Reference Chemical compound· Semiconductor· Gallium at the University of Illinois, the future of solar energy just got brighter. Although silicon is the industry

Rogers, John A.

334

Matter & Energy Engineering  

E-Print Network [OSTI]

. AmericanEnergyProperties.com Related Stories New Facility BoostsGasHydrates Research (June 2, 2008) --A new & Climate Global Warming Environmental Issues Climate Reference Natural gas Hydrocarbon Automobile emissionsLike 6 0 | More APA MLA See Also: Matter & Energy Petroleum Engineering Fossil Fuels Earth

Sóbester, András

335

Dark matter, not magnetism  

Science Journals Connector (OSTI)

......Astronomical Society. Provided by the NASA Astrophysics Data System 1 March 1993 research-article Letters Dark matter, not magnetism Massimo Persic 1 2 Paolo Salucci 1 1 Notice that most optical rotation curves, coming from the gas-emitted H alpha line......

Massimo Persic; Paolo Salucci

1993-03-01T23:59:59.000Z

336

Processes for making dense, spherical active materials for lithium-ion cells  

DOE Patents [OSTI]

Processes are provided for making dense, spherical mixed-metal carbonate or phosphate precursors that are particularly well suited for the production of active materials for electrochemical devices such as lithium ion secondary batteries. Exemplified methods include precipitating dense, spherical particles of metal carbonates or metal phosphates from a combined aqueous solution using a precipitating agent such as ammonium hydrogen carbonate, sodium hydrogen carbonate, or a mixture that includes sodium hydrogen carbonate. Other exemplified methods include precipitating dense, spherical particles of metal phosphates using a precipitating agent such as ammonium hydrogen phosphate, ammonium dihydrogen phosphate, sodium phosphate, sodium hydrogen phosphate, sodium dihydrogen phosphate, or a mixture of any two or more thereof. Further provided are compositions of and methods of making dense, spherical metal oxides and metal phosphates using the dense, spherical metal precursors. Still further provided are electrodes and batteries using the same.

Kang, Sun-Ho (Naperville, IL); Amine, Khalil (Downers Grove, IL)

2011-11-22T23:59:59.000Z

337

Energy Matters in Washington State Page 1 Energy Matters  

E-Print Network [OSTI]

Energy Matters in Washington State ­ Page 1 Energy Matters in Washington State June 2008 Updated November 2009 Updated and Revised October 2013 Grand Coulee Dam #12;Energy Matters in Washington State ­ Page 2 Copyright © 2013 Washington State University Energy Program. 905 Plum Street SE, P.O. Box 43169

Collins, Gary S.

338

Dynamical mechanism for non-locality in dense granular flows  

E-Print Network [OSTI]

The dynamical mechanism at the origin of the non-local rheology of dense granular flows is investigated trough discrete element simulations. We show that the influence of a shear band on the mechanical behavior of a distant zone is contained in the spatial variations observed in the network of granular contacts. Using a micro-rheology technique, we establish that the exponential responses hence obtained, do not proof the validity of a mechanical activation process as previously suggested, but stem from the spatial relaxation of the shear rate as a direct consequence of a macroscopic non-local constitutive relation. Finally, by direct visualization of the local relaxation processes, we dismiss the kinetic elasto-plastic picture, where a flow is conceived as a quasi-static sequence of localized plastic events interacting through the stress field. We therefore conclude in favor of the jamming scenario, where geometrical constrains lead to coherent non-affine displacements along floppy modes, inherently non-local.

M. Bouzid; M. Trulsson; P. Claudin; E. Clement; B. Andreotti

2014-05-09T23:59:59.000Z

339

Observations of strong ion-ion correlations in dense plasmas  

SciTech Connect (OSTI)

Using simultaneous spectrally, angularly, and temporally resolved x-ray scattering, we measure the pronounced ion-ion correlation peak in a strongly coupled plasma. Laser-driven shock-compressed aluminum at ?3× solid density is probed with high-energy photons at 17.9?keV created by molybdenum He-? emission in a laser-driven plasma source. The measured elastic scattering feature shows a well-pronounced correlation peak at a wave vector of k=4Å{sup ?1}. The magnitude of this correlation peak cannot be described by standard plasma theories employing a linear screened Coulomb potential. Advanced models, including a strong short-range repulsion due to the inner structure of the aluminum ions are however in good agreement with the scattering data. These studies have demonstrated a new highly accurate diagnostic technique to directly measure the state of compression and the ion-ion correlations. We have since applied this new method in single-shot wave-number resolved S(k) measurements to characterize the physical properties of dense plasmas.

Ma, T., E-mail: ma8@llnl.gov; Pak, A.; Landen, O. L.; Le Pape, S.; Turnbull, D.; Döppner, T. [Lawrence Livermore National Laboratory, Livermore, California 94550 (United States)] [Lawrence Livermore National Laboratory, Livermore, California 94550 (United States); Fletcher, L.; Galtier, E.; Hastings, J.; Lee, H. J.; Nagler, B.; Glenzer, S. H. [SLAC National Accelerator Laboratory, Menlo Park, California 94025 (United States)] [SLAC National Accelerator Laboratory, Menlo Park, California 94025 (United States); Chapman, D. A. [Plasma Physics Group, AWE plc, Reading RG7 4PR (United Kingdom) [Plasma Physics Group, AWE plc, Reading RG7 4PR (United Kingdom); Centre for Fusion, Space and Astrophysics, Department of Physics, University of Warwick, Coventry CV4 7AL (United Kingdom); Falcone, R. W. [Physics Department, University of California, Berkeley, California 94720 (United States)] [Physics Department, University of California, Berkeley, California 94720 (United States); Fortmann, C. [Lawrence Livermore National Laboratory, Livermore, California 94550 (United States) [Lawrence Livermore National Laboratory, Livermore, California 94550 (United States); Department of Physics and Astronomy, University of California, Los Angeles, California 90095 (United States); Gericke, D. O. [Centre for Fusion, Space and Astrophysics, Department of Physics, University of Warwick, Coventry CV4 7AL (United Kingdom)] [Centre for Fusion, Space and Astrophysics, Department of Physics, University of Warwick, Coventry CV4 7AL (United Kingdom); Gregori, G.; White, T. G. [University of Oxford, Clarendon Laboratory, Oxford OX1 3PU (United Kingdom)] [University of Oxford, Clarendon Laboratory, Oxford OX1 3PU (United Kingdom); Neumayer, P. [Extreme Matter Institute, GSI Helmholtzzentrum für Schwerionenforschung, Planckstr. 1, 64291 Darmstadt (Germany)] [Extreme Matter Institute, GSI Helmholtzzentrum für Schwerionenforschung, Planckstr. 1, 64291 Darmstadt (Germany); Vorberger, J. [Max Planck Institut für Physik komplexer Systeme, Nötthnizer Straße 38, 01187 Dresden (Germany)] [Max Planck Institut für Physik komplexer Systeme, Nötthnizer Straße 38, 01187 Dresden (Germany); and others

2014-05-15T23:59:59.000Z

340

Free energy landscape of a dense hard-sphere system  

Science Journals Connector (OSTI)

The topography of the free energy landscape in phase space of a dense hard-sphere system characterized by a discretized free energy functional of the Ramakrishnan-Yussouff form is investigated numerically using a specially devised Monte Carlo procedure. We locate a considerable number of glassy local minima of the free energy and analyze the distributions of the free energy at a minimum and an appropriately defined phase-space “distance” between different minima. We find evidence for the existence of pairs of closely related glassy minima (“two-level systems”). We also investigate the way the system makes transitions as it moves from the basin of attraction of a minimum to that of another one after a start under nonequilibrium conditions. This allows us to determine the effective height of free energy barriers that separate a glassy minimum from the others. The dependence of the height of free energy barriers on the density is investigated in detail. The general appearance of the free energy landscape resembles that of a putting green: relatively deep minima separated by a fairly flat structure. We discuss the connection of our results with the Vogel-Fulcher law and relate our observations to other work on the glass transition.

Chandan Dasgupta and Oriol T. Valls

1999-03-01T23:59:59.000Z

Note: This page contains sample records for the topic "hot dense matter" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


341

Materials and Design 24 (2003) 6978 0261-3069/03/$ -see front matter 2002 Elsevier Science Ltd. All rights reserved.  

E-Print Network [OSTI]

operate near their limits of thermal cracking and melting erosion resistances during long-burst firing. Due to their high melting temperature (controls melting- erosion resistance), high hotMaterials and Design 24 (2003) 69­78 0261-3069/03/$ - see front matter 2002 Elsevier Science Ltd

Grujicic, Mica

342

Mean field and collisions in hot nuclei  

SciTech Connect (OSTI)

Collisions between heavy nuclei produce nuclear matter of high density and excitation. Brueckner methods are used to calculate the momentum and temperature dependent mean field for nucleons propagating through nuclear matter during these collisions. The mean field is complex and the imaginary part is related to the ''two-body'' collision, while the real part relates to ''one-body'' collisions. A potential model for the N-N interactions is avoided by calculating the Reaction matrix directly from the T-matrix (i.e., N-N phase shifts) using a version of Brueckner theory previously published by the author. Results are presented for nuclear matter at normal and twice normal density and for temperatures up to 50 MeV. 23 refs., 7 figs.

K /umlt o/hler, H.S.

1989-06-01T23:59:59.000Z

343

The Search for Dark Matter  

ScienceCinema (OSTI)

More than 25 years ago, PNNL scientists began the first underground measurements searching for dark matter using specialized radiation detector technology. Dark matter is yet to be discovered says Physicist John L. Orrell.

Orrell, John

2014-07-24T23:59:59.000Z

344

The Search for Dark Matter  

SciTech Connect (OSTI)

More than 25 years ago, PNNL scientists began the first underground measurements searching for dark matter using specialized radiation detector technology. Dark matter is yet to be discovered says Physicist John L. Orrell.

Orrell, John

2013-11-20T23:59:59.000Z

345

Quantum Condensed Matter | More Science | ORNL  

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

Quantum Condensed Matter SHARE Quantum Condensed Matter Neutron scattering is a uniquely powerful probe for measuring the structure and dynamics of condensed matter. As such it is...

346

Quantum Condensed Matter | Neutron Science | ORNL  

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

Quantum Condensed Matter SHARE Quantum Condensed Matter Neutron scattering is a uniquely powerful probe for measuring the structure and dynamics of condensed matter. As such it is...

347

Instabilities of Non-Abelian Vortices in Dense QCD  

SciTech Connect (OSTI)

We construct a low-energy effective theory describing non-Abelian vortices in the color superconducting quark matter under stress. We demonstrate that all the vortices are radically unstable against decay into the only one type of vortices due to the potential term induced by the explicit flavor symmetry breaking by the strange quark mass. A simple analytical estimate for the lifetime of unstable vortices is provided under the controlled weak-coupling calculations. We briefly discuss the (non)existence of magnetic monopoles at high density.

Eto, Minoru [Theoretical Physics Laboratory, RIKEN, Saitama 351-0198 (Japan); Nitta, Muneto [Department of Physics, and Research and Education Center for Natural Sciences, Keio University, 4-1-1 Hiyoshi, Yokohama, Kanagawa 223-8521 (Japan); Yamamoto, Naoki [Department of Physics, University of Tokyo, Tokyo 113-0033 (Japan)

2010-04-23T23:59:59.000Z

348

Instabilities of Non-Abelian Vortices in Dense QCD  

E-Print Network [OSTI]

We construct a low-energy effective theory describing non-Abelian vortices in the color superconducting quark matter under stress. We demonstrate that all the vortices are radically unstable against decay into the only one type of vortices due to the potential term induced by the explicit flavor symmetry breaking by the strange quark mass. A simple analytical estimate for the lifetime of unstable vortices is provided under the controlled weak-coupling calculations. We briefly discuss the (non)existence of magnetic monopoles at high density.

Minoru Eto; Muneto Nitta; Naoki Yamamoto

2009-12-08T23:59:59.000Z

349

Direct search for dark matter  

SciTech Connect (OSTI)

Dark matter is hypothetical matter which does not interact with electromagnetic radiation. The existence of dark matter is only inferred from gravitational effects of astrophysical observations to explain the missing mass component of the Universe. Weakly Interacting Massive Particles are currently the most popular candidate to explain the missing mass component. I review the current status of experimental searches of dark matter through direct detection using terrestrial detectors.

Yoo, Jonghee; /Fermilab

2009-12-01T23:59:59.000Z

350

"Phase freezeout" in isentropically expanding matter  

E-Print Network [OSTI]

Features of isentropic expansion of warm dense matter (WDM) created by intense energy fluxes (strong shock compression or instant isochoric heating by laser or heavy ions) are under discussion in situation when ($i$) -- thermodynamic trajectory of such expansion crosses binodal of liquid-gas phase transition, and ($ii$) -- expansion within the two-phase region is going along equilibrium branch (not metastable one) of the two-phase mixture isentrope. It is known in the plane case that because of break in the expansion isentrope at binodal point (in $P-V$ plane) i.e. jump of sound velocity in this point, there appears extended zone ("boiling layer") of uniformity in expanding material with constant thermodynamic and kinematic parameters. It corresponds just to the state on this binodal of boiling liquid. The point is that because of self-similarity of such expansion (in plane case) this boiling layer contains finite and fixed part of whole expanding material. This property makes it possible (at least formally) ...

Iosilevskiy, Igor

2014-01-01T23:59:59.000Z

351

Particulate matter dynamics  

E-Print Network [OSTI]

A substantial fraction of the particulate matter released into the atmosphere by industrial or natural processes corresponds to particles whose aerodynamic diameters are greater than 50 mm. It has been shown that, for these particles, the classical description of Gaussian plume diffusion processes, is inadequate to describe the transport and deposition. In this paper we present new results concerning the dispersion of coarse particulate matter. The simulations are done with our own code that uses the Bulirsch Stoer numerical integrator to calculate threedimensional trajectories of particles released into the environment under very general conditions. Turbulent processes are simulated by the Langevin equation and weather conditions are modeled after stable (Monin-Obukhov length L> 0) and unstable conditions (L <0). We present several case studies based on Monte Carlo simulations and discusses the effect of weather on the final deposition of these particles.

Cionco, Rodolfo G; Caligaris, Marta G

2012-01-01T23:59:59.000Z

352

Control apparatus for hot gas engine  

DOE Patents [OSTI]

A mean pressure power control system for a hot gas (Stirling) engine utilizing a plurality of supply tanks for storing a working gas at different pressures. During pump down operations gas is bled from the engine by a compressor having a plurality of independent pumping volumes. In one embodiment of the invention, a bypass control valve system allows one or more of the compressor volumes to be connected to the storage tanks. By selectively sequencing the bypass valves, a capacity range can be developed over the compressor that allows for lower engine idle pressures and more rapid pump down rates.

Stotts, Robert E. (Clifton Park, NY)

1986-01-01T23:59:59.000Z

353

Automated inspection of hot steel slabs  

DOE Patents [OSTI]

The disclosure relates to a real time digital image enhancement system for performing the image enhancement segmentation processing required for a real time automated system for detecting and classifying surface imperfections in hot steel slabs. The system provides for simultaneous execution of edge detection processing and intensity threshold processing in parallel on the same image data produced by a sensor device such as a scanning camera. The results of each process are utilized to validate the results of the other process and a resulting image is generated that contains only corresponding segmentation that is produced by both processes.

Martin, Ronald J. (Burnsville, MN)

1985-01-01T23:59:59.000Z

354

Multiple volume compressor for hot gas engine  

DOE Patents [OSTI]

A multiple volume compressor for use in a hot gas (Stirling) engine having a plurality of different volume chambers arranged to pump down the engine when decreased power is called for and return the working gas to a storage tank or reservoir. A valve actuated bypass loop is placed over each chamber which can be opened to return gas discharged from the chamber back to the inlet thereto. By selectively actuating the bypass valves, a number of different compressor capacities can be attained without changing compressor speed whereby the capacity of the compressor can be matched to the power available from the engine which is used to drive the compressor.

Stotts, Robert E. (Clifton Park, NY)

1986-01-01T23:59:59.000Z

355

Hot Fuel Examination Facility/South  

SciTech Connect (OSTI)

This document describes the potential environmental impacts associated with proposed modifications to the Hot Fuel Examination Facility/South (HFEF/S). The proposed action, to modify the existing HFEF/S at the Argonne National Laboratory-West (ANL-W) on the Idaho National Engineering Laboratory (INEL) in southeastern Idaho, would allow important aspects of the Integral Fast Reactor (IFR) concept, offering potential advantages in nuclear safety and economics, to be demonstrated. It would support fuel cycle experiments and would supply fresh fuel to the Experimental Breeder Reactor-II (EBR-II) at the INEL. 35 refs., 12 figs., 13 tabs.

Not Available

1990-05-01T23:59:59.000Z

356

Impact of strange quark matter nuggets on pycnonuclear reaction rates in the crusts of neutron stars  

SciTech Connect (OSTI)

This article presents an investigation into the pycnonuclear reaction rates in dense crustal matter of neutron stars contaminated with strange quark matter nuggets. The presence of such nuggets in the crustal matter of neutron stars would be a natural consequence if Witten's strange quark matter hypothesis is correct. The methodology presented in this article is a recreation of a recent representation of nuclear force interactions embedded within pycnonuclear reaction processes. The study then extends the methodology to incorporate distinctive theoretical characteristics of strange quark matter nuggets, like their low charge-per-baryon ratio, and then assesses their effects on the pycnonuclear reaction rates. Particular emphasis is put on the impact of color superconductivity on the reaction rates. Depending on whether quark nuggets are in this novel state of matter, their electric charge properties vary drastically, which turns out to have a dramatic effect on the pycnonuclear reaction rates. Future nuclear fusion network calculations may thus have the potential to shed light on the existence of strange quark matter nuggets and on whether they are in a color superconducting state, as suggested by QCD.

Golf, B.; Hellmers, J.; Weber, F. [Department of Physics, San Diego State University, 5500 Campanile Drive, San Diego, California 92182 (United States)

2009-07-15T23:59:59.000Z

357

A new form of strange matter and new hope for finding it  

SciTech Connect (OSTI)

Deep in the dense cores of collapsed stars even atoms don't survive. The force of gravity crushes them into particle mushes weighing megatons per teaspoon. But even these alien forms of matter don't hold a candle to another possible end product of a collapsing star: something physicists justifiably call strange matter. This strangeness comes from an exotic particle not associated with ordinary matter: the strange quark. It belongs to a six-member quark family, along with up, down, charm, top, and bottom, each of which carries a different combination of charge and mass. The only ones that make up matter as we know it are up and down quarks, but in theory, matter could form out of strange quarks as well. In nature, it would turn up most probably in interiors of collapsed stars. Scientists originally imagined strange matter as a sort of disorganized mixed bag of strange quarks, but this summer a group proposed that the quarks could form a sort of mutant atomic nucleus that could conceivably grow to the size of a star. For the moment this is speculation, but it may not be theoretical musing for long. Physicists are preparing to try making strange matter here on Earth, in experiments at Brookhaven National Laboratory in New York and Switzerland's CERN, next summer.

Flam, F.

1993-10-08T23:59:59.000Z

358

Brookhaven Condensed Matter Physics  

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

Condensed Matter Physics Condensed Matter Physics Condensed matter physicists study the properties of bulk matter-solids and liquids-as well as the properties exhibited at surfaces and interfaces, with a view to obtaining a fundamental understanding of the unusual properties that materials can exhibit. These problems are some of the most challenging in physics today, but have the huge pay-off in that such an understanding may ultimately lead to improved materials for use in applications as diverse as computing, memory storage, electric motors, and energy storage and transport. At Brookhaven Lab, this work includes both experimental and theoretical studies. Much of the experimental work carried out today uses the National Synchrotron Light Source (NSLS, shown at right)-one of the premiere synchrotron light sources of the last two decades. Commissioned in the 1980s, the NSLS is host to more than 2,200 users per year and produces copious amounts of light, from the infrared to the ultraviolet to the x-ray. By using this light as a probe, scientists can learn about the arrangement of the atoms and electrons in the materials and how they behave under various conditions. Among other projects, BNL scientists have played leading roles in the development and application of resonant and inelastic x-ray scattering techniques to the study of magnetic and other materials, have pioneered the use of photoemission techniques (based on the photoelectric effect that Einstein first understood 100 years ago) for looking at electronic and magnetic materials, and have carried out some of the seminal experiments to understand the atomic and magnetic structure at surfaces.

359

Inverse bremsstrahlung heating rate for dense plasmas in laser fields  

SciTech Connect (OSTI)

We report a theoretical analysis of inverse bremsstrahlung heating rate in the eikonal approximation. The present analysis is performed for a dense plasma using the screened electron-ion interaction potential for the ion charge state Z{sub i} = 1 and for both the weak and strong plasma screening cases. We have also compared the eikonal results with the first Born approximation (FBA) [M. Moll et al., New J. Phys. 14, 065010 (2012)] calculation. We find that the magnitudes of inverse bremsstrahlung heating rate within the eikonal approximation (EA) are larger than the FBA values in the weak screening case (? = 0.03 a.u.) in a wide range of field strength for three different initial electron momenta (2, 3, and 4 a.u.). But for strong screening case (? = 0.3 a.u.), the heating rates predicted by the two approximations do not differ much after reaching their maximum values. Furthermore, the individual contribution of photoemission and photoabsorption processes to heating rate is analysed for both the weak and strong screening cases. We find that the single photoemission and photoabsorption rates are the same throughout the field strength while the multiphoton absorption process dominates over the multiphoton emission process beyond the field strength ? 4×10{sup 8} V/cm. The present study of the dependence of heating rate on the screening parameter ranging from 0.01 to 20 shows that whereas the heating rate predicted by the EA is greater than the FBA up to the screening parameter ? = 0.3 a.u., the two approximation methods yield results which are nearly identical beyond the above value.

Dey, R. [D-203, Samruddhi Residency, Motera, Ahmedabad-380009, Gujarat (India)] [D-203, Samruddhi Residency, Motera, Ahmedabad-380009, Gujarat (India); Roy, A. C. [School of Mathematical Sciences, Ramakrishna Mission Vivekananda University, Belur Math 711202, West Bengal (India)] [School of Mathematical Sciences, Ramakrishna Mission Vivekananda University, Belur Math 711202, West Bengal (India)

2013-07-15T23:59:59.000Z

360

Webinar: ENERGY STAR Hot Water Systems for High Performance Homes  

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

Star Hot Water Systems for High Performance Homes Star Hot Water Systems for High Performance Homes 1 | Building America Program www.buildingamerica.gov Buildings Technologies Program Date: September 30, 2011 ENERGY STAR ® Hot Water Systems for High Performance Homes Welcome to the Webinar! We will start at 11:00 AM Eastern. There is no call in number. The audio will be sent through your computer speakers. All questions will be submitted via typing. Video of presenters Energy Star Hot Water Systems for High Performance Homes 2 | Building America Program www.buildingamerica.gov Energy Star Hot Water Systems for High Performance Homes 3 | Building America Program www.buildingamerica.gov Building America Program: Introduction Building Technologies Program Energy Star Hot Water Systems for High Performance Homes

Note: This page contains sample records for the topic "hot dense matter" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


361

Beowawe Hot Springs Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Beowawe Hot Springs Geothermal Area Beowawe Hot Springs Geothermal Area (Redirected from Beowawe Hot Springs Area) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Beowawe Hot Springs Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Future Plans 5 Exploration History 6 Well Field Description 7 Research and Development Activities 8 Technical Problems and Solutions 9 Geology of the Area 10 Geofluid Geochemistry 11 NEPA-Related Analyses (0) 12 Exploration Activities (8) 13 References Map: Beowawe Hot Springs Geothermal Area Beowawe Hot Springs Geothermal Area Location Map Area Overview Geothermal Area Profile Location: Beowawe, Nevada Exploration Region: Central Nevada Seismic Zone GEA Development Phase: Operational"Operational" is not in the list of possible values (Phase I - Resource Procurement and Identification, Phase II - Resource Exploration and Confirmation, Phase III - Permitting and Initial Development, Phase IV - Resource Production and Power Plant Construction) for this property.

362

Building Energy Software Tools Directory: HOT2 XP  

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

HOT2 XP HOT2 XP HOT2 XP logo. New member of the HOT2000 family of energy analysis software. Its graphical user interface and simplified input make it a quick and easy tool for analysing energy use in houses. However, the underlying engine is that of HOT2000 and thus provides a state of the art analysis. Keywords energy performance, design, residential buildings, energy simulation, passive solar Validation/Testing N/A Expertise Required Basic understanding of the construction and operation of residential buildings. Users New program, over 300 users. Audience Renovators, builders, utilities, home inspectors, design evaluators, engineers, architects, building and energy code writers, Policy writers, curious homeowners. HOT2XP is also used as the compliance software for the

363

Roosevelt Hot Springs Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Roosevelt Hot Springs Geothermal Area Roosevelt Hot Springs Geothermal Area (Redirected from Roosevelt Hot Springs Area) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Roosevelt Hot Springs Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Future Plans 5 Exploration History 6 Well Field Description 7 Research and Development Activities 8 Technical Problems and Solutions 9 Geology of the Area 10 Heat Source 11 Geofluid Geochemistry 12 NEPA-Related Analyses (0) 13 Exploration Activities (9) 14 References Map: Roosevelt Hot Springs Geothermal Area Roosevelt Hot Springs Geothermal Area Location Map Area Overview Geothermal Area Profile Location: Milford, Utah Exploration Region: Northern Basin and Range Geothermal Region

364

Integrated Geophysical Exploration of a Known Geothermal Resource: Neal Hot  

Open Energy Info (EERE)

Geophysical Exploration of a Known Geothermal Resource: Neal Hot Geophysical Exploration of a Known Geothermal Resource: Neal Hot Springs Jump to: navigation, search OpenEI Reference LibraryAdd to library Book Section: Integrated Geophysical Exploration of a Known Geothermal Resource: Neal Hot Springs Abstract We present integrated geophysical data to characterize a geothermal system at Neal Hot Springs in eastern Oregon. This system is currently being developed for geothermal energy production. The hot springs are in a region of complex and intersecting fault trends associated with two major extensional events, the Oregon-Idaho Graben and the Western Snake River Plain. The intersection of these two fault systems, coupled with high geothermal gradients from thin continental crust produces pathways for surface water and deep geothermal water interactions at Neal Hot Springs.

365

Idaho Public Utilities Commission Approves Neal Hot Springs Power Purchase  

Open Energy Info (EERE)

Idaho Public Utilities Commission Approves Neal Hot Springs Power Purchase Idaho Public Utilities Commission Approves Neal Hot Springs Power Purchase Agreement Jump to: navigation, search OpenEI Reference LibraryAdd to library Report: Idaho Public Utilities Commission Approves Neal Hot Springs Power Purchase Agreement Abstract N/A Author U.S. Geothermal Inc. Published Publisher Not Provided, 2010 Report Number N/A DOI Not Provided Check for DOI availability: http://crossref.org Online Internet link for Idaho Public Utilities Commission Approves Neal Hot Springs Power Purchase Agreement Citation U.S. Geothermal Inc.. 2010. Idaho Public Utilities Commission Approves Neal Hot Springs Power Purchase Agreement. Boise Idaho: (!) . Report No.: N/A. Retrieved from "http://en.openei.org/w/index.php?title=Idaho_Public_Utilities_Commission_Approves_Neal_Hot_Springs_Power_Purchase_Agreement&oldid=682748"

366

Measurement of the electrical resistivity of a dense strongly coupled plasma  

Science Journals Connector (OSTI)

We present measurements of the electrical resistivity of a dense strongly coupled plasma. This plasma is created in a comprehensively diagnosed capillary discharge that produces uniform well-characterized dense plasmas. Data for polyurethane at densities ?=0.01?0, where ?0=1.265 g/cm3, and temperatures in the 25–30 eV range are compared with several dense plasma theories, and show a significant disagreement. These results are of importance for the modeling of pulsed power experiments and the understanding of transport processes in many astrophysical plasmas.

J. F. Benage, Jr., W. R. Shanahan, E. G. Sherwood, L. A. Jones, and R. J. Trainor

1994-05-01T23:59:59.000Z

367

Design package for solar domestic hot water system  

SciTech Connect (OSTI)

Information used to evaluate the initial design of the Elcam, Inc., Solar Domestic Hot Water System is presented. Included are such items as the system performance specification, detailed design drawings and other information. Elcam, Inc., has developed two solar heated prototype hot water systems and two heat exchangers. The hot water systems consist of the following subsystems: collector, storage, control, transport, auxiliary energy, and government-furnished Site Data Acquisition. The two systems are installed at Tempe, Arizona, and San Diego, California.

None

1980-09-01T23:59:59.000Z

368

Hot cell facility design for large fusion devices  

SciTech Connect (OSTI)

Large hot cell facilities will be necessary to support the operation of large fusion devices. The supporting hot cells will be needed to serve a variety of different functions and tasks, which include reactor component maintenance, tool and maintenance equipment repair, and preparation of radioactive material for shipment and disposal. This paper discusses hot cell facility functions, requirements, and design issues and techniques. Suggested solutions and examples are given.

Barrett, R.J.; Bussell, G.T.

1985-01-01T23:59:59.000Z

369

Hot cell facility design for large fusion devices  

SciTech Connect (OSTI)

Large hot cell facilities will be necessary to support the operation of large fusion devices. The supporting hot cells will be needed to serve a variety of different functions and tasks, which include reactor component maintenance, tool and maintenance equipment repair, and preparation of radioactive material for shipment and disposal. This paper discusses hot cell facility functions, requirements, and design issues and techniques. Suggested solutions and examples are given.

Barrett, R.J.; Bussell, G.T.

1985-07-01T23:59:59.000Z

370

The long hot summer of the tokamak  

E-Print Network [OSTI]

What have the probability for fine weather in summer and the possibility for a future use of nuclear fusion as a practically unlimited and clean energy source got in common? The answer is in the particular nature underlying both physical systems: both the atmosphere and hot magnetized fusion plasmas are determined by similar processes of structure formation in quasi-two-dimensional periodic nonlinear dynamical systems. Self-organization of waves and vortices on small scales in both cases leads to large-scale flows, which are, depending on conditions, either stable for a long time - or can break apart intermittently and expel large vortex structures. In the case of earth's atmosphere, a potential stabilization of the polar jet stream over northern Europe by warming in early summer leads to a high probability for stable hot midsummer weather in central Europe. The efficient utilization of nuclear fusion in a power plant also depends if a stabilization of such zonal flows ("H mode") may be sustained by heating o...

Kendl, Alexander

2012-01-01T23:59:59.000Z

371

Ethylene oxide and Acetaldehyde in hot cores  

E-Print Network [OSTI]

[Abridged] Ethylene oxide and its isomer acetaldehyde are important complex organic molecules because of their potential role in the formation of amino acids. Despite the fact that acetaldehyde is ubiquitous in the interstellar medium, ethylene oxide has not yet been detected in cold sources. We aim to understand the chemistry of the formation and loss of ethylene oxide in hot and cold interstellar objects (i) by including in a revised gas-grain network some recent experimental results on grain surfaces and (ii) by comparison with the chemical behaviour of its isomer, acetaldehyde. We test the code for the case of a hot core. The model allows us to predict the gaseous and solid ethylene oxide abundances during a cooling-down phase prior to star formation and during the subsequent warm-up phase. We can therefore predict at what temperatures ethylene oxide forms on grain surfaces and at what temperature it starts to desorb into the gas phase. The model reproduces the observed gaseous abundances of ethylene oxid...

Occhiogrosso, A; Herbst, E; Viti, S; Ward, M D; Price, S D; Brown, W A

2014-01-01T23:59:59.000Z

372

Hydrogeologic investigation of Coso Hot Springs, Inyo County, California.  

Open Energy Info (EERE)

Hydrogeologic investigation of Coso Hot Springs, Inyo County, California. Hydrogeologic investigation of Coso Hot Springs, Inyo County, California. Final report October 1977--January 1978 Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Report: Hydrogeologic investigation of Coso Hot Springs, Inyo County, California. Final report October 1977--January 1978 Details Activities (2) Areas (1) Regions (0) Abstract: This investigation included: review of existing geologic, geophysical, and hydrologic information; field examination of geologic rock units and springs and other features of hydrologic significance and sampling of waters for chemical analysis; determination of the local Coso Hot Springs and regional groundwater hydrology, including consideration of recharge, discharge, movement, and water quality; and determination of the

373

Understanding The Chena Hot Springs, Alaska, Geothermal System Using  

Open Energy Info (EERE)

source source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Page Edit History Facebook icon Twitter icon » Understanding The Chena Hot Springs, Alaska, Geothermal System Using Temperature And Pressure Data From Exploration Boreholes Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Understanding The Chena Hot Springs, Alaska, Geothermal System Using Temperature And Pressure Data From Exploration Boreholes Details Activities (7) Areas (1) Regions (0) Abstract: Chena Hot Springs is a small, moderate temperature, deep circulating geothermal system, apparently typical of those associated to hot springs of interior Alaska. Multi-stage drilling was used in some

374

Ch. III, Interpretation of water sample analyses Waunita Hot...  

Open Energy Info (EERE)

analyses Waunita Hot Springs area Gunnison County, Colorado Author R. H. Carpenter Editor T. G. Zacharakis Published Colorado Geological Survey in Cooperation with the U.S....

375

Ch. VIII, Soil mercury investigations, Waunita Hot Springs |...  

Open Energy Info (EERE)

mercury investigations, Waunita Hot Springs Authors C. D. Ringrose and R. H. Pearl Editor T. G. Zacharakis Published Colorado Geological Survey in Cooperation with the U.S....

376

Ch. II, Waunita Hot Springs, Colorado Geothermal Prospect Reconaissanc...  

Open Energy Info (EERE)

Waunita Hot Springs, Colorado Geothermal Prospect Reconaissance Author GeothermEx Editor T. G. Zacharakis Published Colorado Geological Survey in Cooperation with the U.S....

377

Ch. VI, The geophysical environment around Waunita Hot Springs...  

Open Energy Info (EERE)

Ch. VI, The geophysical environment around Waunita Hot Springs Author A. L. Lange Editor T. G. Zacharakis Published Colorado Geological Survey in Cooperation with the U.S....

378

Micro-Earthquake At Roosevelt Hot Springs Geothermal Area (Zandt...  

Open Energy Info (EERE)

Activity Details Location Roosevelt Hot Springs Geothermal Area Exploration Technique Micro-Earthquake Activity Date 1982 Usefulness not indicated DOE-funding Unknown...

379

Mercury Vapor At Vale Hot Springs Area (Varekamp & Buseck, 1983...  

Open Energy Info (EERE)

Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Mercury Vapor At Vale Hot Springs Area (Varekamp & Buseck, 1983) Exploration Activity Details...

380

Mercury Vapor At Breitenbush Hot Springs Area (Varekamp & Buseck...  

Open Energy Info (EERE)

Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Mercury Vapor At Breitenbush Hot Springs Area (Varekamp & Buseck, 1983) Exploration Activity...

Note: This page contains sample records for the topic "hot dense matter" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


381

Mercury Vapor At Mickey Hot Springs Area (Varekamp & Buseck,...  

Open Energy Info (EERE)

Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Mercury Vapor At Mickey Hot Springs Area (Varekamp & Buseck, 1983) Exploration Activity...

382

Advanced Seismic Data Analysis Program- The "Hot Pot" Project  

Broader source: Energy.gov [DOE]

Advanced Seismic Data Analysis Program- The "Hot Pot" Project presentation at the April 2013 peer review meeting held in Denver, Colorado.

383

DOE ZERH Webinar: Efficient Hot Water Distribution I: What's...  

Office of Environmental Management (EM)

I: What's at Stake Watch the video or view the presentation below Zero Energy Ready Homes include critical systems to ensure both energy efficiency and performance. Hot water...

384

Isotopic Analysis- Fluid At Roosevelt Hot Springs Geothermal...  

Open Energy Info (EERE)

and literature review of the Roosevelt Hot Springs Geothermal Area. Notes Stable isotope analysis of thermal fluids determined meteoric origin primarily from the Mineral...

385

Field Mapping At Hot Sulphur Springs Area (Goranson, 2005) |...  

Open Energy Info (EERE)

DOE-funding Unknown References Colin Goranson (2005) Recent Drilling Activities At The Earth Power Resources Tuscarora Geothermal Power Project'S Hot Sulphur Springs Lease Area...

386

Reflection Survey At Hot Sulphur Springs Area (Goranson, 2005...  

Open Energy Info (EERE)

DOE-funding Unknown References Colin Goranson (2005) Recent Drilling Activities At The Earth Power Resources Tuscarora Geothermal Power Project'S Hot Sulphur Springs Lease Area...

387

Goddard Hot Springs Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

ENERGYGeothermal Home Goddard Hot Springs Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5...

388

Flow Test At Roosevelt Hot Springs Geothermal Area (Faulder,...  

Open Energy Info (EERE)

Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Flow Test At Roosevelt Hot Springs Geothermal Area (Faulder, 1991) Exploration Activity Details...

389

Flow Test At Roosevelt Hot Springs Geothermal Area (Faulder,...  

Open Energy Info (EERE)

Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Flow Test At Roosevelt Hot Springs Geothermal Area (Faulder, 1994) Exploration Activity Details...

390

Aerial Photography At Pilgrim Hot Springs Area (Prakash, Et Al...  

Open Energy Info (EERE)

Prakash, Et Al., 2010) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Aerial Photography At Pilgrim Hot Springs Area (Prakash, Et Al., 2010)...

391

Magnetotellurics At Beowawe Hot Springs Area (Garg, Et Al., 2007...  

Open Energy Info (EERE)

Garg, Et Al., 2007) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Magnetotellurics At Beowawe Hot Springs Area (Garg, Et Al., 2007) Exploration...

392

Micro-Earthquake At Waunita Hot Springs Geothermal Area (Lange...  

Open Energy Info (EERE)

was to assess the extent of active fault failure and the potential importance of fracture permeability in the subsurface surrounding the hot springs. Notes The first...

393

Chena Hot Springs GRED III Project: Final Report Geology, Petrology...  

Open Energy Info (EERE)

hot springs area. This included pluton mapping, limited mapping of localfaults and fracture orientations, and petrology, mineralogy, geochemistry, of surface rocksamples. 2)...

394

Idaho Public Utilities Commission Approves Neal Hot Springs Power...  

Open Energy Info (EERE)

Public Utilities Commission Approves Neal Hot Springs Power Purchase Agreement Jump to: navigation, search OpenEI Reference LibraryAdd to library Report: Idaho Public Utilities...

395

Mandating Solar Hot Water by California Local Governments: Legal Issues  

E-Print Network [OSTI]

the legality of solar mandates in California cities andCITIES & CALIFORNIA ENERGY COMMISSION, SOLAR HANDBOOK FORMandating Solar Hot Water By California Local Governments:

Hoffman,, Peter C.

1981-01-01T23:59:59.000Z

396

Vertical Electrical Sounding Configurations At Mt Princeton Hot...  

Open Energy Info (EERE)

navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Vertical Electrical Sounding Configurations At Mt Princeton Hot Springs Geothermal Area (Zohdy, Et Al.,...

397

Geothermal: Sponsored by OSTI -- Economics of Developing Hot...  

Office of Scientific and Technical Information (OSTI)

Economics of Developing Hot Stratigraphic Reservoirs Geothermal Technologies Legacy Collection HelpFAQ | Site Map | Contact Us | Admin Log On HomeBasic Search About Publications...

398

Hydrothermal Exploration at Pilgrim Hot Springs, Alaska | Department...  

Energy Savers [EERE]

Springs, Alaska Hydrothermal Exploration at Pilgrim Hot Springs, Alaska Lower Temperature Geothermal Resources are Yielding Power Thanks to Energy Department Investments Lower...

399

NREL: State and Local Governments - Solar Hot Topics STAT Webinars  

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

Education & Outreach Solar Technical Assistance Team Webinars Solar 101 Hot Topics DIY Solar Market Analysis Policy Basics Publications Request Assistance Technical Assistance...

400

Coupled Thermal-Hydrological-Mechanical Processes in Salt, Hot...  

Office of Environmental Management (EM)

Coupled Thermal-Hydrological-Mechanical Processes in Salt, Hot Granular Salt Consolidation, Constitutive Model and Micromechanics Coupled Thermal-Hydrological-Mechanical Processes...

Note: This page contains sample records for the topic "hot dense matter" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


401

Audio-Magnetotellurics At Baltazor Hot Springs Area (Isherwood...  

Open Energy Info (EERE)

Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Audio-Magnetotellurics At Baltazor Hot Springs Area (Isherwood & Mabey, 1978) Exploration...

402

Chena Hot Springs Resort - Electric Power Generation Using Geothermal...  

Office of Environmental Management (EM)

Office 2013 Peer Review Electric Power Generation Using Geothermal Fluid Coproduced from Oil andor Gas Wells PI - Bernie Karl Chena Hot Springs Resort Track 1 Project Officer:...

403

Magnetic moment of hyperons in nuclear matter by using quark-meson coupling models  

E-Print Network [OSTI]

We calculate the magnetic moments of hyperons in dense nuclear matter by using relativistic quark models. Hyperons are treated as MIT bags, and the interactions are considered to be mediated by the exchange of scalar and vector mesons which are approximated as mean fields. Model dependence is investigated by using the quark-meson coupling model and the modified quark-meson coupling model; in the former the bag constant is independent of density and in the latter it depends on density. Both models give us the magnitudes of the magnetic moments increasing with density for most octet baryons. But there is a considerable model dependence in the values of the magnetic moments in dense medium. The magnetic moments at the nuclear saturation density calculated by the quark meson coupling model are only a few percents larger than those in free space, but the magnetic moments from the modified quark meson coupling model increase more than 10% for most hyperons. The correlations between the bag radius of hyperons and the magnetic moments of hyperons in dense matter are discussed.

C. Y. Ryu; C. H. Hyun; T. -S. Park; S. W. Hong

2008-06-06T23:59:59.000Z

404

Ultra-High Intensity Magnetic Field Generation in Dense Plasma  

SciTech Connect (OSTI)

I. Grant Objective The main objective of this grant proposal was to explore the efficient generation of intense currents. Whereasthefficient generation of electric current in low-­?energy-­? density plasma has occupied the attention of the magnetic fusion community for several decades, scant attention has been paid to carrying over to high-­?energy-­? density plasma the ideas for steady-­?state current drive developed for low-­?energy-­? density plasma, or, for that matter, to inventing new methodologies for generating electric current in high-­?energy-­?density plasma. What we proposed to do was to identify new mechanisms to accomplish current generation, and to assess the operation, physics, and engineering basis of new forms of current drive in regimes appropriate for new fusion concepts.

Fisch, Nathaniel J

2014-01-08T23:59:59.000Z

405

Integrated dense array and transect MT surveying at dixie valley geothermal  

Open Energy Info (EERE)

dense array and transect MT surveying at dixie valley geothermal dense array and transect MT surveying at dixie valley geothermal area, Nevada- structural controls, hydrothermal alteration and deep fluid sources Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Paper: Integrated dense array and transect MT surveying at dixie valley geothermal area, Nevada- structural controls, hydrothermal alteration and deep fluid sources Authors Philip E. Wannamaker, William M. Doerner and Derrick P. Hasterok Conference proceedings, 32th workshop on geothermal reservoir Engineering, Stanford University; Stanford University; 2007 Published Publisher Not Provided, 2007 DOI Not Provided Check for DOI availability: http://crossref.org Online Internet link for Integrated dense array and transect MT surveying at dixie valley geothermal area, Nevada- structural controls, hydrothermal

406

Do children acquire dense neighborhoods? An investigation of similarity neighborhoods in lexical acquisition  

E-Print Network [OSTI]

This study tests the claim that children acquire collections of phonologically similar word forms. namely, dense neighborhoods. Age of acquisition (AoA) norms were obtained front two databases: parent report of infant and ...

Storkel, Holly Lynn

2004-04-01T23:59:59.000Z

407

Microwave heating of electrons of a dense plasma column at frequencies higher than electron cyclotron frequency  

Science Journals Connector (OSTI)

In this experimental study the absorption of plasma waves, excited in a dense plasma column, was investigated and the localization of the regions of efficient heating of electrons were determined in a broad...ce/...

J. ?atlov; L. Kryška; V. N. Budnikov

1973-01-01T23:59:59.000Z

408

Unsteady effects in dense, high speed, particle laden flows J.D. Regele a,  

E-Print Network [OSTI]

t Dense high speed non-compacted multiphase flows exist in variable phase turbines, explosions, and ejec multiphase flows can be found in a variety of practical applications such as variable phase turbines

Dabiri, John O.

409

Dense Plasma Focus Fusion Neutron Sources Progress at NSTec, September 2011  

SciTech Connect (OSTI)

A number of dense plasma focus (DPF) sources are introduced, including their operating characteristics and current activities. Neutron resonance spectroscopy is discussed and the feasibility of using DPF for neutron sources is considered.

Hagen, E. C.

2011-07-02T23:59:59.000Z

410

Multi-resolution surfel maps for efficient dense 3D modeling and tracking  

Science Journals Connector (OSTI)

Building consistent models of objects and scenes from moving sensors is an important prerequisite for many recognition, manipulation, and navigation tasks. Our approach integrates color and depth measurements seamlessly in a multi-resolution map representation. ... Keywords: 3D multi-resolution RGB-D image representation, Dense indoor scene mapping, Dense object modeling, On-line loop-closure detection, Real-time RGB-D image registration, Real-time pose tracking, Real-time simultaneous localization and mapping, Visual odometry

Jörg Stückler; Sven Behnke

2014-01-01T23:59:59.000Z

411

The effects of an ambient salinity gradient on the dilution of dense brine jets  

E-Print Network [OSTI]

THE EFFECTS OF AN AMBIENT SALINITY GRADIENT ON THE DILUTION OF DENSE BRINE JETS A Thesis by GARY WAYNE MCCULLOUGH Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER... OF SCIENCE December 1986 Major Subject: Ocean Engineering THE EFFECTS OF AN AMBIENT SALINITY GRADIENT ON THE DILUTION OF DENSE BRINE JETS A Thesis by GARY NAYNE MCCULLOUGH Approved as to style and content by: Robert E. Randall (Chair of Committee...

McCullough, Gary Wayne

2012-06-07T23:59:59.000Z

412

Thermophysical properties of warm dense hydrogen using quantum molecular dynamics simulations  

Science Journals Connector (OSTI)

We study the thermophysical properties of warm dense hydrogen by using quantum molecular dynamics simulations. Results are presented for the pair distribution functions, the equation of state, and the Hugoniot curve. From the dynamic conductivity, we derive the dc electrical conductivity and the reflectivity. We compare with available experimental data and predictions of the chemical picture. In particular, we discuss the nonmetal-to-metal transition, which occurs at about 40 GPa in the dense fluid.

Bastian Holst, Ronald Redmer, and Michael P. Desjarlais

2008-05-09T23:59:59.000Z

413

Hot Organic Molecules Toward a Young Low-Mass Star: A Look at Inner Disk Chemistry  

E-Print Network [OSTI]

Spitzer Space Telescope spectra of the low mass young stellar object (YSO) IRS 46 (L_bol ~ 0.6 L_sun) in Ophiuchus reveal strong vibration-rotation absorption bands of gaseous C2H2, HCN, and CO2. This is the only source out of a sample of ~100 YSO's that shows these features and the first time they are seen in the spectrum of a solar-mass YSO. Analysis of the Spitzer data combined with Keck L- and M-band spectra gives excitation temperatures of > 350 K and abundances of 10(-6)-10(-5) with respect to H2, orders of magnitude higher than those found in cold clouds. In spite of this high abundance, the HCN J=4-3 line is barely detected with the James Clerk Maxwell Telescope, indicating a source diameter less than 13 AU. The (sub)millimeter continuum emission and the absence of scattered light in near-infrared images limits the mass and temperature of any remnant collapse envelope to less than 0.01 M_sun and 100 K, respectively. This excludes a hot-core type region as found in high-mass YSO's. The most plausible origin of this hot gas rich in organic molecules is in the inner (<6 AU radius) region of the disk around IRS 46, either the disk itself or a disk wind. A nearly edge-on 2-D disk model fits the spectral energy distribution (SED) and gives a column of dense warm gas along the line of sight that is consistent with the absorption data. These data illustrate the unique potential of high-resolution infrared spectroscopy to probe organic chemistry, gas temperatures and kinematics in the planet-forming zones close to a young star.

F. Lahuis; E. F. van Dishoeck; A. C. A. Boogert; K. M. Pontoppidan; G. A. Blake; C. P. Dullemond; N. J. Evans II; M. R. Hogerheijde; J. K. Joergensen; J. E. Kessler-Silacci; C. Knez

2005-11-29T23:59:59.000Z

414

HOT ELECTROMAGNETIC OUTFLOWS. II. JET BREAKOUT  

SciTech Connect (OSTI)

We consider the interaction between radiation, matter, and a magnetic field in a compact, relativistic jet. The entrained matter accelerates outward as the jet breaks out of a star or other confining medium. In some circumstances, such as gamma-ray bursts (GRBs), the magnetization of the jet is greatly reduced by an advected radiation field while the jet is optically thick to scattering. Where magnetic flux surfaces diverge rapidly, a strong outward Lorentz force develops and radiation and matter begin to decouple. The increase in magnetization is coupled to a rapid growth in Lorentz factor. We take two approaches to this problem. The first examines the flow outside the fast magnetosonic critical surface, and calculates the flow speed and the angular distribution of the radiation field over a range of scattering depths. The second considers the flow structure on both sides of the critical surface in the optically thin regime, using a relaxation method. In both approaches, we find how the terminal Lorentz factor and radial profile of the outflow depend on the radiation intensity and optical depth at breakout. The effect of bulk Compton scattering on the radiation spectrum is calculated by a Monte Carlo method, while neglecting the effects of internal dissipation. The peak of the scattered spectrum sits near the seed peak if radiation pressure dominates the acceleration, but is pushed to a higher frequency if the Lorentz force dominates. The unscattered seed radiation can form a distinct, low-frequency component of the spectrum, especially if the magnetic Poynting flux dominates.

Russo, Matthew [Department of Physics, University of Toronto, 60 St. George Street, Toronto, ON M5S 1A7 (Canada); Thompson, Christopher [Canadian Institute for Theoretical Astrophysics, 60 St. George Street, Toronto, ON M5S 3H8 (Canada)

2013-08-20T23:59:59.000Z

415

Coatings for hot section gas turbine components  

Science Journals Connector (OSTI)

Components in the hot section of gas turbines are protected from the environment by oxidation-resistant coatings while thermal barrier coatings are applied to reduce the metal operating temperature of blades and vanes. The integrity of these protective coatings is an issue of major concern in current gas turbine designs. Premature cracking of the protective layer in oxidation-resistant coatings and of the interface in thermal barrier coating systems has become one of the life limiting factors of coated components in gas turbines. Following a brief overview of the state-of-the-art of coated material systems with respect to coating types and their status of application, the fracture mechanisms and mechanics of coated systems are presented and discussed.

J. Bressers; S. Peteves; M. Steen

2000-01-01T23:59:59.000Z

416

Alternatives for reducing hot-water bills  

SciTech Connect (OSTI)

A two stage approach to reducing residential water heating bills is described. In Stage I, simple conservation measures were included to reduce the daily hot water energy consumption and the energy losses from the water tank. Once these savings are achieved, Stage II considers more costly options for further reducing the water heating bill. Four alternatives are considered in Stage II: gas water heaters; solar water heaters (two types); heat pump water heaters; and heat recovery from a heat pump or air conditioner. To account for variations within the MASEC region, information on water heating in Rapid City, Minneapolis, Chicago, Detroit, and Kansas City is presented in detail. Information on geography, major population centers, fuel prices, climate, and state solar incentives is covered. (MCW)

Bennington, G.E.; Spewak, P.C.

1981-06-01T23:59:59.000Z

417

Magnetic island evolution in hot ion plasmas  

SciTech Connect (OSTI)

Effects of finite ion temperature on magnetic island evolution are studied by means of numerical simulations of a reduced set of two-fluid equations which include ion as well as electron diamagnetism in slab geometry. The polarization current is found to be almost an order of magnitude larger in hot than in cold ion plasmas, due to the strong shear of ion velocity around the separatrix of the magnetic islands. As a function of the island width, the propagation speed decreases from the electron drift velocity (for islands thinner than the Larmor radius) to values close to the guiding-center velocity (for islands of order 10 times the Larmor radius). In the latter regime, the polarization current is destabilizing (i.e., it drives magnetic island growth). This is in contrast to cold ion plasmas, where the polarization current is generally found to have a healing effect on freely propagating magnetic island.

Ishizawa, A.; Nakajima, N. [National Institute for Fusion Science, Toki 509-5292 (Japan); Waelbroeck, F. L.; Fitzpatrick, R.; Horton, W. [Institute for Fusion Studies, University of Texas at Austin, Austin, Texas 78712 (United States)

2012-07-15T23:59:59.000Z

418

Telescopic nanotube device for hot nanolithography  

DOE Patents [OSTI]

A device for maintaining a constant tip-surface distance for producing nanolithography patterns on a surface using a telescopic nanotube for hot nanolithography. An outer nanotube is attached to an AFM cantilever opposite a support end. An inner nanotube is telescopically disposed within the outer nanotube. The tip of the inner nanotube is heated to a sufficiently high temperature and brought in the vicinity of the surface. Heat is transmitted to the surface for thermal imprinting. Because the inner tube moves telescopically along the outer nanotube axis, a tip-surface distance is maintained constant due to the vdW force interaction, which in turn eliminates the need of an active feedback loop.

Popescu, Adrian; Woods, Lilia M

2014-12-30T23:59:59.000Z

419

Hot gas path component cooling system  

DOE Patents [OSTI]

A cooling system for a hot gas path component is disclosed. The cooling system may include a component layer and a cover layer. The component layer may include a first inner surface and a second outer surface. The second outer surface may define a plurality of channels. The component layer may further define a plurality of passages extending generally between the first inner surface and the second outer surface. Each of the plurality of channels may be fluidly connected to at least one of the plurality of passages. The cover layer may be situated adjacent the second outer surface of the component layer. The plurality of passages may be configured to flow a cooling medium to the plurality of channels and provide impingement cooling to the cover layer. The plurality of channels may be configured to flow cooling medium therethrough, cooling the cover layer.

Lacy, Benjamin Paul; Bunker, Ronald Scott; Itzel, Gary Michael

2014-02-18T23:59:59.000Z

420

Hot Springs-Garrison Fiber Optic Project  

SciTech Connect (OSTI)

Bonneville Power Administration (BPA) is proposing to upgrade its operational telecommunications system between the Hot Springs Substation and the Garrison Substation using a fiber optic system. The project would primarily involve installing 190 kilometers (120 miles) of fiber optic cable on existing transmission structures and installing new fiber optic equipment in BPA`s substation yards and control houses. BPA prepared an environmental assessment (EA) evaluating the proposed action. This EA was published in October 1994. The EA identifies a number of minor impacts that might occur as a result of the proposed action, as well as some recommended mitigation measures. This Mitigation Action Plan (MAP) identifies specific measures to avoid, minimize, or compensate for impacts identified in the EA.

Not Available

1994-10-01T23:59:59.000Z

Note: This page contains sample records for the topic "hot dense matter" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


421

Superconducting cuprate heterostructures for hot electron bolometers  

SciTech Connect (OSTI)

Transport properties of the resistive state of quasi-two dimensional superconducting heterostructures containing ultrathin La{sub 2?x}Sr{sub x}CuO{sub 4} layers synthesized using molecular beam epitaxy are studied. The electron transport exhibits strong deviation from Ohm's law, ?V??I{sup 3}, with a coefficient ?(T) that correlates with the temperature variation of the resistivity d?/dT. Close to the normal state, analysis of the nonlinear behavior in terms of electron heating yields an electron-phonon thermal conductance per unit area g{sub e?ph}?1 W/K cm{sup 2} at T = 20 K, one-two orders of magnitude smaller than in typical superconductors. This makes superconducting LaSrCuO heterostructures to be attractive candidate for the next generation of hot electron bolometers with greatly improved sensitivity.

Wen, B.; Yakobov, R.; Vitkalov, S. A. [Department of Physics, City College of New York, New York 10031 (United States)] [Department of Physics, City College of New York, New York 10031 (United States); Sergeev, A. [SUNY Research Foundation, SUNY at Buffalo, Buffalo, New York 14226 (United States)] [SUNY Research Foundation, SUNY at Buffalo, Buffalo, New York 14226 (United States)

2013-11-25T23:59:59.000Z

422

Final Environmental Assessment BPA's Hot Springs - Garrison  

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

BPA's Hot Springs - Garrison Fiber Optic Project DOE-EA-1 002 POWER ADMINISTRATION Bonneville Power Administration DISCLAIMER This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsi- bility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Refer- ence herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recom-

423

Use of low temperature blowers for recirculation of hot gases  

DOE Patents [OSTI]

An apparatus is described for maintaining motors at low operating temperatures during recirculation of hot gases in fuel cell operations and chemical processes such as fluidized bed coal gasification. The apparatus includes a means for separating the hot process gas from the motor using a secondary lower temperature gas, thereby minimizing the temperature increase of the motor and associated accessories.

Maru, H.C.; Forooque, M.

1982-08-19T23:59:59.000Z

424

Self-contained hot-hollow cathode gun source assembly  

DOE Patents [OSTI]

A self-contained hot-hollow cathode gun source assembly for use in a vacuum chamber includes a crucible block having a hot-hollow cathode gun mounted underneath and providing a hole for the magnetic deflection of the ion/electron beam into a crucible on top the block.

Zeren, Joseph D. (Boulder, CO)

1986-01-01T23:59:59.000Z

425

Self-contained hot-hollow cathode gun source assembly  

DOE Patents [OSTI]

A self-contained hot-hollow cathode gun source assembly for use in a vacuum chamber includes a crucible block having a hot-hollow cathode gun mounted underneath and providing a hole for the magnetic deflection of the ion/electron beam into a crucible on top the block.

Zeren, J.D.

1984-08-01T23:59:59.000Z

426

Hot neutron star in generalized thermo-statistics  

E-Print Network [OSTI]

Hot neutron star in generalized thermo-statistics K. Miyazaki E-mail: miyazakiro@rio.odn.ne.jp Abstract The hot neutron star (NS) is investigated for the ...rst time in the generalized thermo-statistics. The study of neutron star (NS) is an important subject in nuclear physics and astro- physics. The equation

427

RESONANT FARADAY ROTATION IN A HOT LITHIUM VAPOR  

E-Print Network [OSTI]

RESONANT FARADAY ROTATION IN A HOT LITHIUM VAPOR By SCOTT RUSSELL WAITUKAITIS A Thesis Submitted: #12;Abstract I describe a study of Faraday rotation in a hot lithium vapor. I begin by dis- cussing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2.3 The Lithium Oven and Solenoid . . . . . . . . . . . . . . . . . 7 3 Theoretical Framework

Cronin, Alex D.

428

ASC eNews Quarterly Newsletter March 2013 | National Nuclear...  

National Nuclear Security Administration (NNSA)

Properties of Hot Dense Matter, Santa Barbara, CA, Oct. Gahvari, H., Gropp, W., Jordan, K.E., Schulz, M., Yang, U.M. (2012). "Modeling the Performance of an Algebraic...

429

Kelley Hot Spring Geothermal Project: Kelly Hot Spring Agricultural Center conceptual design  

SciTech Connect (OSTI)

The proposed core activity in the Kelly Hot Spring Agricultural Center is a nominal 1200 sow swine raising complex. The swine raising is to be a totally confined operation for producing premium pork in controlled environment facilities that utilize geothermal energy. The complex will include a feedmill for producing the various feed formulae required for the animals from breeding through gestation, farrowing, nursery, growing and finishing. The market animals are shipped live by truck to slaughter in Modesto, California. A complete waste management facility will include manure collection from all raising areas, transport via a water flush sysem to methane (biogas) generators, manure separation, settling ponds and disposition of the surplus agricultural quality water. The design is based upon the best commercial practices in confined swine raising in the US today. The most unique feature of the facility is the utilization of geothermal hot water for space heating and process energy throughout the complex.

Longyear, A.B. (ed.)

1980-06-01T23:59:59.000Z

430

Geophysical Characterization of a Geothermal System Neal Hot Springs,  

Open Energy Info (EERE)

Characterization of a Geothermal System Neal Hot Springs, Characterization of a Geothermal System Neal Hot Springs, Oregon, USA Jump to: navigation, search OpenEI Reference LibraryAdd to library Report: Geophysical Characterization of a Geothermal System Neal Hot Springs, Oregon, USA Abstract Neal Hot Springs is an active geothermal area that is also the proposed location of a binary power plant, which is being developed by US Geothermal Inc. To date, two production wells have been drilled and an injection well is in the process of being completed. The primary goal of this field camp was to provide a learning experience for students studying geophysics, but a secondary goal was to characterize the Neal Hot Springs area to provide valuable information on the flow of geothermal fluids through the subsurface. This characterization was completed using a variety of

431

Beowawe Hot Springs Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Beowawe Hot Springs Geothermal Area Beowawe Hot Springs Geothermal Area Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Beowawe Hot Springs Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Future Plans 5 Exploration History 6 Well Field Description 7 Research and Development Activities 8 Technical Problems and Solutions 9 Geology of the Area 10 Geofluid Geochemistry 11 NEPA-Related Analyses (0) 12 Exploration Activities (8) 13 References Map: Beowawe Hot Springs Geothermal Area Beowawe Hot Springs Geothermal Area Location Map Area Overview Geothermal Area Profile Location: Beowawe, Nevada Exploration Region: Central Nevada Seismic Zone GEA Development Phase: Operational"Operational" is not in the list of possible values (Phase I - Resource Procurement and Identification, Phase II - Resource Exploration and Confirmation, Phase III - Permitting and Initial Development, Phase IV - Resource Production and Power Plant Construction) for this property.

432

Geothermometry At Hot Springs Ranch Area (Szybinski, 2006) | Open Energy  

Open Energy Info (EERE)

Hot Springs Ranch Area (Szybinski, 2006) Hot Springs Ranch Area (Szybinski, 2006) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geothermometry At Hot Springs Ranch Area (Szybinski, 2006) Exploration Activity Details Location Hot Springs Ranch Area Exploration Technique Geothermometry Activity Date Usefulness useful DOE-funding Unknown Notes The brine from the drill holes, hot springs, seepages, and irrigation wells was sampled, as well as water from two nearby creeks, (total of 13 samples) and sent for analysis to Thermochem Inc. For sample locations refer to Figure 35; the geochemical data are presented in Appendix C. Geochemical results indicate the presence of two distinct waters in this group of samples (Tom Powell of Thermochem Inc., personal communication, 2005).

433

Manley Hot Springs Greenhouse Low Temperature Geothermal Facility | Open  

Open Energy Info (EERE)

Manley Hot Springs Greenhouse Low Temperature Geothermal Facility Manley Hot Springs Greenhouse Low Temperature Geothermal Facility Jump to: navigation, search Name Manley Hot Springs Greenhouse Low Temperature Geothermal Facility Facility Manley Hot Springs Sector Geothermal energy Type Greenhouse Location Manley Hot Springs, Alaska Coordinates 65.0011111°, -150.6338889° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[]}

434

Roosevelt Hot Springs Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Roosevelt Hot Springs Geothermal Area Roosevelt Hot Springs Geothermal Area Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Roosevelt Hot Springs Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Future Plans 5 Exploration History 6 Well Field Description 7 Research and Development Activities 8 Technical Problems and Solutions 9 Geology of the Area 10 Heat Source 11 Geofluid Geochemistry 12 NEPA-Related Analyses (0) 13 Exploration Activities (9) 14 References Map: Roosevelt Hot Springs Geothermal Area Roosevelt Hot Springs Geothermal Area Location Map Area Overview Geothermal Area Profile Location: Milford, Utah Exploration Region: Northern Basin and Range Geothermal Region GEA Development Phase: Operational"Operational" is not in the list of possible values (Phase I - Resource Procurement and Identification, Phase II - Resource Exploration and Confirmation, Phase III - Permitting and Initial Development, Phase IV - Resource Production and Power Plant Construction) for this property.

435

Chena Hot Springs Geothermal Facility | Open Energy Information  

Open Energy Info (EERE)

Chena Hot Springs Geothermal Facility Chena Hot Springs Geothermal Facility Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Chena Hot Springs Geothermal Facility General Information Name Chena Hot Springs Geothermal Facility Facility Chena Hot Springs Sector Geothermal energy Location Information Location Fairbanks, Alaska Coordinates 65.0518255°, -146.0474319° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":65.0518255,"lon":-146.0474319,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

436

Brady Hot Springs I Geothermal Facility | Open Energy Information  

Open Energy Info (EERE)

Hot Springs I Geothermal Facility Hot Springs I Geothermal Facility Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Brady Hot Springs I Geothermal Facility General Information Name Brady Hot Springs I Geothermal Facility Facility Brady Hot Springs I Sector Geothermal energy Location Information Location Churchill, Nevada Coordinates 39.796370120458°, -119.00998950005° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":39.796370120458,"lon":-119.00998950005,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

437

Savings Project: Insulate Hot Water Pipes for Energy Savings | Department  

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

Insulate Hot Water Pipes for Energy Savings Insulate Hot Water Pipes for Energy Savings Savings Project: Insulate Hot Water Pipes for Energy Savings Addthis Project Level Medium Energy Savings $8-$12 annually Time to Complete 3 hours for a small house Overall Cost $10-$15 Insulating water pipes can save you water, energy, and money. | Photo courtesy of iStockphoto.com/nsj-images Insulating water pipes can save you water, energy, and money. | Photo courtesy of iStockphoto.com/nsj-images Insulating your hot water pipes reduces heat loss and can raise water temperature 2°F-4°F hotter than uninsulated pipes can deliver, allowing for a lower water temperature setting. You also won't have to wait as long for hot water when you turn on a faucet or showerhead, which helps conserve water. Paying for someone to insulate your pipes-as a project on its own-may

438

Why sequence thermophiles in Great Basin hot springs?  

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

thermophiles in Great Basin hot springs? thermophiles in Great Basin hot springs? A thermophile is an organism that thrives in extremely hot temperature conditions. These conditions are found in the Great Basin hot springs, where the organisms have been exposed to unique conditions which guide their lifecycle. High temperature environments often support large and diverse populations of microorganisms, which appear to be hot spots of biological innovation of carbon fixation. Sequencing these microbes that make their home in deadly heat could provide various insights into understanding energy production and carbon cycling. Converting cellulosic biomass to ethanol is one of the most promising strategies to reduce petroleum consumption in the near future. This can only be achieved by enhancing recovery of fermentable sugars from complex

439

Neal Hot Springs Geothermal Power Plant | Open Energy Information  

Open Energy Info (EERE)

Neal Hot Springs Geothermal Power Plant Neal Hot Springs Geothermal Power Plant Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Neal Hot Springs Geothermal Power Plant General Information Name Neal Hot Springs Geothermal Power Plant Facility Neal Hot Springs Sector Geothermal energy Location Information Location Malheur County, Oregon Coordinates 44.02239°, -117.4631° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":44.02239,"lon":-117.4631,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

440

Desert Hot Springs Space Heating Low Temperature Geothermal Facility | Open  

Open Energy Info (EERE)

Hot Springs Space Heating Low Temperature Geothermal Facility Hot Springs Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Desert Hot Springs Space Heating Low Temperature Geothermal Facility Facility Desert Hot Springs Sector Geothermal energy Type Space Heating Location Desert Hot Springs, California Coordinates 33.961124°, -116.5016784° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[]}

Note: This page contains sample records for the topic "hot dense matter" from the National Library of EnergyBeta (NLEBeta).
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they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


441

Solar Hot Water Creates Savings for Homeless Shelters | Department of  

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

Solar Hot Water Creates Savings for Homeless Shelters Solar Hot Water Creates Savings for Homeless Shelters Solar Hot Water Creates Savings for Homeless Shelters July 15, 2010 - 12:10pm Addthis Kevin Craft What are the key facts? Recovery Act funds are being used to install solar hot water systems at 5 Phoenix shelters. The systems will save Phoenox 33,452 kWh of energy -- about $4,000 -- annually. The systems will reduce about 40,000 pounds of carbon emissions annually. "This project will save us a huge amount of money," says Paul Williams, House of Refuge Sunnyslope's Executive Director. Williams is referring to a recent partnership between the state of Arizona and House of Refuge Sunnyslope to install solar hot water systems at five Phoenix-area housing sites for homeless men, which will make an immediate difference at the

442

A Preliminary Resistivity Investigation (Ves) Of The Langada Hot Springs  

Open Energy Info (EERE)

Preliminary Resistivity Investigation (Ves) Of The Langada Hot Springs Preliminary Resistivity Investigation (Ves) Of The Langada Hot Springs Area In Northern Greece Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: A Preliminary Resistivity Investigation (Ves) Of The Langada Hot Springs Area In Northern Greece Details Activities (0) Areas (0) Regions (0) Abstract: In total 24 direct current resistivity soundings were carried out during the preliminary stages of a geothermal exploration survey of the Langada hot springs area (northern Greece). The analysis of the data revealed a horst-type morphology striking NW-SE. Correlation between the location of hot springs, successful drill holes and the basement (horst) indicates that the sector of geothermal interest is concentrated along the major axis of the horst mapped. The horst type geothermal structure fits in

443

Gila Hot Springs District Heating Low Temperature Geothermal Facility |  

Open Energy Info (EERE)

Gila Hot Springs District Heating Low Temperature Geothermal Facility Gila Hot Springs District Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Gila Hot Springs District Heating Low Temperature Geothermal Facility Facility Gila Hot Springs Sector Geothermal energy Type District Heating Location Gila Hot Springs, New Mexico Coordinates Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[]}

444

Nuclear Matter and Nuclear Dynamics  

E-Print Network [OSTI]

Highlights on the recent research activity, carried out by the Italian Community involved in the "Nuclear Matter and Nuclear Dynamics" field, will be presented.

M Colonna

2009-02-26T23:59:59.000Z

445

Evaluation of the Performance of Air Dense Medium Fluidized Bed (ADMFB) for Low-Ash Coal Beneficiation. Part 2: Characteristics of the Beneficiated Coal  

Science Journals Connector (OSTI)

Evaluation of the Performance of Air Dense Medium Fluidized Bed (ADMFB) for Low-Ash Coal Beneficiation. ... The slagging and fouling decrease the efficiency of heat-exchange surfaces in conventional coal-firing furnaces, while in slagging gasifiers, where ash is intentionally converted into liquid slag (better operation, control particulate matter emission, and trap trace elements and heavy metals in a unleachable glass phase), to achieve free flux toward the bottom of the gasifier (tapping system), the higher slagging propensity and lower viscosity at the operating temperature are required. ... These samples include two clean coal products, which exhibited minimum ash content (B and C), two tests that offered maximum organic material recovery (D and E) from the middle particle size fraction, and two tests with fine and coarse particle sizes (A and F, respectively). ...

Ebrahim Azimi; Shayan Karimipour; Moshfiqur Rahman; Jozef Szymanski; Rajender Gupta

2013-08-13T23:59:59.000Z

446

Aluminium depletion in NiCrAlY bond coatings by hot corrosion as a function of projection system  

Science Journals Connector (OSTI)

Three different projection system are used to prepare NiCrAlY bond coats over metallic substrates: atmospheric plasma spray (APS), high velocity oxyfuel (HVOF) and high frequency pulse detonation (HFPD). These coatings were tested in hot corrosion experiments with sprayed Na2SO4 at 1000 °C for 20 and 100 h experiments in air. Coatings surface composition after thermal treatment was characterised by XRD and SEM. Cross section of coatings were analysed by SEM-EDX. A relationship between microstructural characteristics of initial coatings and final performance in hot corrosion was found in terms of porosity percentage: plasma sprayed coatings present higher percentage of porosity compared to HVOF and HFPD projection systems for the same composition and Al is heavily consumed in interparticle oxidation. This Al depletion in turn involves intrinsic chemical failure and surface layer is comprised by a porous spinel of mixed oxides. On the other hand, high energy projection systems produce dense coatings allowing the Al migration to external alumina layer, particularly in the case of HVOF coating.

M.C. Mayoral; J.M. Andrés; M.T. Bona; V. Higuera; F.J. Belzunce

2008-01-01T23:59:59.000Z

447

Identification of the building parameters that influence heating and cooling energy loads for apartment buildings in hot-humid climates  

Science Journals Connector (OSTI)

Identifying the building parameters that significantly impact energy performance is an important step for enabling the reduction of the heating and cooling energy loads of apartment buildings in the design stage. Implementing passive design techniques for these buildings is not a simple task in most dense cities; their energy performance usually depends on uncertainties in the local climate and many building parameters, such as window size, zone height, and features of materials. For this paper, a sensitivity analysis was performed to determine the most significant parameters for buildings in hot-humid climates by considering the design of an existing apartment building in Izmir, Turkey. The Monte Carlo method is selected for sensitivity and uncertainty analyses with the Latin hypercube sampling (LHC) technique. The results show that the sensitivity of parameters in apartment buildings varies based on the purpose of the energy loads and locations in the building, such as the ground, intermediate, and top floors. In addition, the total window area, the heat transfer coefficient (U) and the solar heat gain coefficient (SHGC) of the glazing based on the orientation have the most considerable influence on the energy performance of apartment buildings in hot-humid climates.

Yusuf Y?ld?z; Zeynep Durmu? Arsan

2011-01-01T23:59:59.000Z

448

Secluded WIMP Dark Matter  

E-Print Network [OSTI]

We consider a generic mechanism via which thermal relic WIMP dark matter may be decoupled from the Standard Model, namely through a combination of WIMP annihilation to metastable mediators with subsequent delayed decay to Standard Model states. We illustrate this with explicit examples of WIMPs connected to the Standard Model by metastable bosons or fermions. In all models, provided the WIMP mass is greater than that of the mediator, it can be secluded from the Standard Model with an extremely small elastic scattering cross-section on nuclei and rate for direct collider production. In contrast, indirect signatures from WIMP annihilation are consistent with a weak scale cross-section and provide potentially observable \\gamma-ray signals. We also point out that \\gamma-ray constraints and flavor physics impose severe restrictions on MeV-scale variants of secluded models, and identify limited classes that pass all the observational constraints.

Maxim Pospelov; Adam Ritz; Mikhail B. Voloshin

2007-11-30T23:59:59.000Z

449

Field Theory of Matter  

Science Journals Connector (OSTI)

A speculative field theory of matter is developed. Simple computational methods are used in a preliminary survey of its consequences. The theory exploits the known properties of leptons by means of a principle of symmetry between electrical and nucleonic charge. There are fundamental fields with spins 0, ½, 1. The spinless field is neutral. Spin ½ and 1 fields can carry both electrical and nucleonic charge. The multiplicity of any nonzero charge is 3. Explicit dynamical mechanisms for the breakdown of unitary symmetry and for the muon-electron mass difference are given. A more general view of lepton properties is proposed. Mass relations for baryon and meson multiplets are derived, together with approximate couplings among the multiplets. The weakness of ? production in ?-N collisions and the suppression of the ???+? decay is explained.

Julian Schwinger

1964-08-10T23:59:59.000Z

450

THERMODYNAMICS OF LOW-TEMPERATURE (700-850oC) HOT CORROSION  

E-Print Network [OSTI]

funded low power hot corrosion studies. NRL MemorandumLOW-TEMPERATURE {700-850°C) HOT CORROSION A.K. Misra, D.P.TEMPERATURE (700-850" C) HOT CORROSION A.K. Misra and D.P.

Misra, A.K.

2013-01-01T23:59:59.000Z

451

IRAS 22198+6336: DISCOVERY OF AN INTERMEDIATE-MASS HOT CORE  

SciTech Connect (OSTI)

We present new Submillimeter Array and Plateau de Bure Interferometer observations of the intermediate-mass object IRAS 22198+6336 in the millimeter continuum and in several molecular line transitions. The millimeter continuum emission reveals a strong and compact source with a mass of {approx}5 M {sub sun} and with properties of Class 0 objects. CO emission shows an outflow with a quadrupolar morphology centered on the position of the dust condensation. The CO outflow emission seems to come from two distinct outflows, one of them associated with SiO outflow emission. A large set of molecular lines has been detected toward a compact dense core clearly coincident with the compact millimeter source, and showing a velocity gradient perpendicular to the outflow traced by CO and SiO. The chemically rich spectrum and the rotational temperatures derived from CH{sub 3}CN and CH{sub 3}OH (100-150 K) indicate that IRAS 22198+6336 is harboring one of the few intermediate-mass hot cores known at present.

Sanchez-Monge, Alvaro; Estalella, Robert [Departament d'Astronomia i Meteorologia (IEEC-UB), Institut de Ciencies del Cosmos, Universitat de Barcelona, Marti i Franques, 1, E-08028 Barcelona (Spain); Palau, Aina [Institut de Ciencies de l'Espai (CSIC-IEEC), Campus UAB-Facultat de Ciencies, Torre C5-parell 2, E-08193 Bellaterra, Catalunya (Spain); Kurtz, Stan [Centro de RadioastronomIa y Astrofisica, Universidad Nacional Autonoma de Mexico, Apdo. Postal 3-72, 58090, Morelia, Michoacan (Mexico); Zhang Qizhou [Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138 (United States); Di Francesco, James [Conseil national de recherches Canada, Institut Herzberg d'astrophysique, 5071 West Saanich Road, Victoria, BC (Canada); Shepherd, Debra, E-mail: asanchez@am.ub.e [NRAO, P.O. Box O, Socorro, NM 87801-0387 (United States)

2010-10-01T23:59:59.000Z

452

Dark Matter Searches with GLAST  

E-Print Network [OSTI]

Indirect detection of particle dark matter relies upon pair annihilation of Weakly Interaction Massive Particles (WIMPs), which is complementary to the well known techniques of direct detection (WIMP-nucleus scattering) and collider production (WIMP pair production). Pair annihilation of WIMPs results in the production of gamma-rays, neutrinos, and anti-matter. Of the various experiments sensitive to indirect detection of dark matter, the Gamma-ray Large Area Space Telescope (GLAST) may play the most crucial role in the next few years. After launch in late 2007, The GLAST Large Area Telescope (LAT) will survey the gamma-ray sky in the energy range of 20MeV-300GeV. By eliminating charged particle background above 100 MeV, GLAST may be sensitive to as yet to be observed Milky Way dark matter subhalos, as well as WIMP pair annihilation spectral lines from the Milky Way halo. Discovery of gamma-ray signals from dark matter in the Milky Way would not only demonstrate the particle nature of dark matter; it would also open a new observational window on galactic dark matter substructure. Location of new dark matter sources by GLAST would dramatically alter the experimental landscape; ground based gamma ray telescopes could follow up on the new GLAST sources with precision measurements of the WIMP pair annihilation spectrum.

Lawrence Wai; GLAST LAT Collaboration

2007-01-31T23:59:59.000Z

453

dark matter dark energy inflation  

E-Print Network [OSTI]

theory dark matter dark energy inflation The National Science Foundation The Kavli Foundation NSF Site Review November 28-29, 2005 #12;dark matter dark energy inflation NSF Site Visit ­ November 28 - 29, 2005The National Science Foundation The Kavli Foundation The Theoretical Web UHE cosmic rays B

Hu, Wayne

454

Organic matter in ancient meteorites  

Science Journals Connector (OSTI)

......asteroids. 3: Organic matter in...lead to the production of hydroxy...useful in cell membranes...a part in cell membranes...meteorite organic matter because...form the solar system bequeathed...the early solar system and organic-inorganic......

Mark A Sephton

2004-04-01T23:59:59.000Z

455

Energy Matters in Washington State  

E-Print Network [OSTI]

Energy Matters in Washington State Energy Matters in Washington State www.energy.wsu.edu/library/ November 2009 #12;905 Plum Street SE, Building 3 P.O. Box 43169 Olympia, Washington 98504-3169 Energy University Extension Energy Program. 905 Plum Street SE, Building 3, P.O. Box 43169, Olympia, Washington

Collins, Gary S.

456

A Reconsideration of Matter Waves  

E-Print Network [OSTI]

Matter waves were discovered in the early 20th century from their wavelength, predicted by DeBroglie, Planck's constant divided by the particle's momentum, that is, lmw = h/mv. But, the failure to obtain a reasonable theory for the matter wave frequency resulted somewhat in loss of further interest. It was expected that the frequency of the matter wave should correspond to the particle kinetic energy, that is, fmw = 1/2mv^2/h but the resulting velocity of the matter of the particle, v = fmw x lmw, is that the matter wave moves at one half the speed of the particle, obviously absurd as the particle and its wave must move together. If relativistic mass is used (as it should in any case) the problem remains, the same mass appearing in numerator and denominator and canceling. It is no help to hypothesize that the total energy, not just the kinetic energy, yields the matter wave. That attributes a matter wave to a particle at rest. It also gives the resulting velocity as c^2/v, the wave racing ahead of its particle. A reinterpretation of Einstein's derivation of relativistic kinetic energy (which produced his famous E = mc^2) leads to a valid matter wave frequency and a new understanding of particle kinetics and of the atom's stable orbits.

Roger Ellman

2005-05-16T23:59:59.000Z

457

Energy Gap in Nuclear Matter  

Science Journals Connector (OSTI)

......research-article Articles Energy Gap in Nuclear Matter Takeshi Ishihara a...Research, Kokubunji, Tokyo An energy gap in nuclear matter is studied. The nucleon-nucleon...1966) pp. 1026-1042 Nuclear Force and Energy Gap in Finite Nuclei Hiroharu......

Takeshi Ishihara; Ryozo Tamagaki; Hajime Tanaka; Masaru Yasuno

1963-11-01T23:59:59.000Z

458

Reduce Hot Water Use for Energy Savings | Department of Energy  

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

Reduce Hot Water Use for Energy Savings Reduce Hot Water Use for Energy Savings Reduce Hot Water Use for Energy Savings June 15, 2012 - 5:51pm Addthis Low-flow fixtures and showerheads can achieve water savings of 25%–60%. | Photo courtesy of ©iStockphoto/DaveBolton. Low-flow fixtures and showerheads can achieve water savings of 25%-60%. | Photo courtesy of ©iStockphoto/DaveBolton. What does this mean for me? Fix leaks, install low-flow fixtures, and purchase an energy-efficient dishwasher and clothes washer to use less hot water and save money. You can lower your water heating costs by using and wasting less hot water in your home. To conserve hot water, you can fix leaks, install low-flow fixtures, and purchase an energy-efficient dishwasher and clothes washer. Fix Leaks You can significantly reduce hot water use by simply repairing leaks in

459

NOVEL DENSE MEMBRANE FOR HYDROGEN SEPARATION FOR ENERGY APPLICATIONS  

SciTech Connect (OSTI)

The main objectives of this project are: (1) Characterization of the thermo mechanical properties of the novel dense HTM bulk sample; (2) Development of a correlation among the intrinsic factors (such as grain size and phase distribution), and the extrinsic factors (such as temperature and atmosphere) and the thermo-mechanical properties (such as strengths and stress) to predict the performance of a HTM system (HTM membrane and porous substrate) ; and (3) Evaluation of the stability of the novel HTM membrane and its property correlations after thermal cycling. Based on all results and analysis of the thermo mechanical properties for the HTM cermet bulk samples, several important conclusions were made. The mean ?fs at room temperature is approximately 356 MPa for the HTM cermet. The mean ?fs value decreases to 284 MPa as the temperature increases to 850?C. The Difference difference in atmosphere, such as air or N2, had an insignificant effect on the flexural strength values at 850?C for the HTM cermet. The HTM cermet samples at room temperature and at 500?C fractured without any significant plastic deformation. Whereas, at 850?C, the HTM cermet samples fractured, preceded by an extensive plastic deformation. It seems that the HTM cermet behaves more like an elastic material such as a nonmetal ceramic at the room temperature, and more like a ductile material at increased temperature (850?C). The exothermic peak during the TG/DTA tests centered at 600?C is most likely associated with both the enthalpy change of transformation from the amorphous phase into crystalline zirconia and the oxidation of Pd phase in HTM cermet in air. The endothermic peak centered at 800?C is associated with the dissociation of PdO to Pd for the HTM cermet sample in both inert N2 environment and air. There is a corresponding weight gain as oxidation occurs for palladium (Pd) phase to form palladium oxide (PdO) and there is a weight loss as the unstable PdO is dissociated back to Pd and oxygen. The normal stress and shear stresses from the Mohr?s circle indicate that the residual stress in the HTM cermet sample is mainly as compressive residual stress in the magnitude of -135 to -155 MP, and with very little shear stress (in the magnitude of 10 MPa). The magnitude of change in the normal stress and the shear stress is insignificant in the HTM after 120 thermal cycles. However, the principle normal stress changes from compressive to tensile residual stress and there is a significant increase in the shear stress after 500 thermal cycles. The calculated value based on the equation and the Mohr?s circle is found to be consistent with the experimental value for the as-received HTM cermet samples. At some rotation (?) angle, the residual stress was found to be as tensile stress. Most ceramic material is weak in tension, and develops microscopic cracks. With treatment of 120 thermal cycles between 50?850?C, the HTM- sample exhibited thermally-induced cracks on the surface. Visually observable cracks appeared on the surface of HTM cermet with continuous thermal cycling, after 500 thermal cycles. The XRD powder diffraction analysis indicated an increased amount of crystalline PdO crystalline in HTM cermet after 120 and 500 thermal cycles as compare to the as-received samples. The Pd crystalline peaks were found to significantly decrease in peak intensity with thermal cycling. Higher peak intensity for PdO phase was observed with increased number of thermal cycles. A Monoclinic monoclinic zirconia phase was first identified in the as-received HTM as-received sample. However, with thermal cycling treatment of both 120 and 500 thermal cycles, the M-ZrO2 phase is transformed to the tetragonal YSZ, which is consistent with the thermal analysis results by TG/DTA. Correlations of the microstructural and thermo-mechanical properties of both selected reference material and ANL-3e HTM cermet bulk sample are affected mainly by porosity and microstructural features, such as grain size and pore size/distribution. The Young?s Modulus (E-value), especially, is positivel

Bandopadhyay, Sukumar [University of Alaska Fairbanks; Balachandran, Uthamalingam (Balu) [ANL; Nag, Nagendra [SURMET CORP.

2013-10-24T23:59:59.000Z

460

Iterative Dense Correspondence Correction Through Bundle Adjustment Feedback-Based Error Detection  

SciTech Connect (OSTI)

A novel method to detect and correct inaccuracies in a set of unconstrained dense correspondences between two images is presented. Starting with a robust, general-purpose dense correspondence algorithm, an initial pose estimate and dense 3D scene reconstruction are obtained and bundle-adjusted. Reprojection errors are then computed for each correspondence pair, which is used as a metric to distinguish high and low-error correspondences. An affine neighborhood-based coarse-to-fine iterative search algorithm is then applied only on the high-error correspondences to correct their positions. Such an error detection and correction mechanism is novel for unconstrained dense correspondences, for example not obtained through epipolar geometry-based guided matching. Results indicate that correspondences in regions with issues such as occlusions, repetitive patterns and moving objects can be identified and corrected, such that a more accurate set of dense correspondences results from the feedback-based process, as proven by more accurate pose and structure estimates.

Hess-Flores, M A; Duchaineau, M A; Goldman, M J; Joy, K I

2009-11-23T23:59:59.000Z

Note: This page contains sample records for the topic "hot dense matter" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


461

E-Print Network 3.0 - alara-conscious hot particle Sample Search...  

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

all particles must leave at low energy. Fig. 1. Diffusion path from hot core to cold... , the diffusion path must connect hot ... Source: Fisch, Nathaniel J.- Princeton...

462

Flow Test At Neal Hot Springs Geothermal Area (U.S. Geothermal...  

Open Energy Info (EERE)

Flow Test At Neal Hot Springs Geothermal Area (U.S. Geothermal Inc., 2008) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Flow Test At Neal Hot...

463

Flow Test At Hot Pot Area (DOE GTP) | Open Energy Information  

Open Energy Info (EERE)

Flow Test At Hot Pot Area (DOE GTP) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Flow Test At Hot Pot Area (DOE GTP) Exploration Activity...

464

Field Mapping At Brady Hot Springs Area (Wesnousky, Et Al., 2003...  

Open Energy Info (EERE)

Brady Hot Springs Area (Wesnousky, Et Al., 2003) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Field Mapping At Brady Hot Springs Area...

465

Hot isostatic press waste option study report  

SciTech Connect (OSTI)

A Settlement Agreement between the Department of Energy and the State of Idaho mandates that all high-level radioactive waste now stored at the Idaho Chemical Processing Plant be treated so that it is ready to move out of Idaho for disposal by the target date of 2035. This study investigates the immobilization of all Idaho Chemical Processing Plant calcine, including calcined sodium bearing waste, via the process known as hot isostatic press, which produces compact solid waste forms by means of high temperature and pressure (1,050 C and 20,000 psi), as the treatment method for complying with the settlement agreement. The final waste product would be contained in stainless-steel canisters, the same type used at the Savannah River Site for vitrified waste, and stored at the Idaho National Engineering and Environmental Laboratory until a national geological repository becomes available for its disposal. The waste processing period is from 2013 through 2032, and disposal at the High Level Waste repository will probably begin sometime after 2065.

Russell, N.E.; Taylor, D.D.

1998-02-01T23:59:59.000Z

466

Superheated water drops in hot oil  

E-Print Network [OSTI]

Drops of water at room temperature were released in hot oil, which had a temperature higher than that of the boiling point of water. Initially, the drop temperature increases slowly mainly due to heat transfer diffusion; convective heat transfer is small because the motion takes place at a small Reynolds number. Once the drop reaches the bottom of the container, it sticks to the surface with a certain contact angle. Then, a part of the drop vaporizes: the nucleation point may appear at the wall, the interface or the bulk of the drop. The vapor expands inside the drop and deforms its interface. The way in which the vapor expands, either smooth or violent, depends on the location of the nucleation point and oil temperature. Furthermore, for temperatures close to the boiling point of water, the drops are stable (overheated); the vaporization does not occur spontaneously but it may be triggered with an external perturbation. In this case the growth of the vapor bubble is rather violent. Many visualization for dif...

Soto, Enrique; Belmonte, Andrew

2009-01-01T23:59:59.000Z

467

Statistical Hot Channel Analysis for the NBSR  

SciTech Connect (OSTI)

A statistical analysis of thermal limits has been carried out for the research reactor (NBSR) at the National Institute of Standards and Technology (NIST). The objective of this analysis was to update the uncertainties of the hot channel factors with respect to previous analysis for both high-enriched uranium (HEU) and low-enriched uranium (LEU) fuels. Although uncertainties in key parameters which enter into the analysis are not yet known for the LEU core, the current analysis uses reasonable approximations instead of conservative estimates based on HEU values. Cumulative distribution functions (CDFs) were obtained for critical heat flux ratio (CHFR), and onset of flow instability ratio (OFIR). As was done previously, the Sudo-Kaminaga correlation was used for CHF and the Saha-Zuber correlation was used for OFI. Results were obtained for probability levels of 90%, 95%, and 99.9%. As an example of the analysis, the results for both the existing reactor with HEU fuel and the LEU core show that CHFR would have to be above 1.39 to assure with 95% probability that there is no CHF. For the OFIR, the results show that the ratio should be above 1.40 to assure with a 95% probability that OFI is not reached.

Cuadra A.; Baek J.

2014-05-27T23:59:59.000Z

468

PARTICULATE HOT GAS STREAM CLEANUP TECHNICAL ISSUES  

SciTech Connect (OSTI)

This is the fourth annual report describing the activities performed under Task 1 of Contract No. DE-AC21-94MC31160. The analyses of hot gas stream cleanup (HGCU) ashes and descriptions of filter performance studied under this contract are designed to address problems with filter operation that are apparently linked to characteristics of the collected ash. This work is designed to generate a data base of the key characteristics of ashes collected from operating advanced particle filters and to relate these ash properties to the operation and performance of these filters and their components. This report summarizes characterizations of ash and char samples from pressurized fluidized-bed combustion and gasification facilities. Efforts are under way to develop a method for preserving fragile filter cakes formed on ceramic filter elements. The HGCU data base was formatted for Microsoft Access 97 ® . Plans for the remainder of the project include characterization of additional samples collected during site visits to the Department of Energy / Southern Company Services Power Systems Development Facility and completion and delivery of the HGCU data base.

None

1999-05-05T23:59:59.000Z

469

PARTICULATE HOT GAS STREAM CLEANUP TECHNICAL ISSUES  

SciTech Connect (OSTI)

This is the fourth annual report describing the activities performed under Task 1 of Contract No. DE-AC21-94MC31160. The analyses of hot gas stream cleanup (HGCU) ashes and descriptions of filter performance studied under this contract are designed to address problems with filter operation that are apparently linked to characteristics of the collected ash. This work is designed to generate a data base of the key characteristics of ashes collected from operating advanced particle filters and to relate these ash properties to the operation and performance of these filters and their components. This report summarizes characterizations of ash and char samples from pressurized fluidized-bed combustion and gasification facilities. Efforts are under way to develop a method for preserving fragile filter cakes formed on ceramic filter elements. The HGCU data base was formatted for Microsoft Access 97{reg_sign}. Plans for the remainder of the project include characterization of additional samples collected during site visits to the Department of Energy/Southern Company Services Power Systems Development Facility and completion and delivery of the HGCU data base.

NONE

1999-05-05T23:59:59.000Z

470

PARTICULATE HOT GAS STREAM CLEANUP TECHNICAL ISSUES  

SciTech Connect (OSTI)

This is the fourth annual report describing the activities performed under Task 1 of Contract No. DE-AC21-94MC31160. The analyses of hot gas stream cleanup (HGCU) ashes and descriptions of filter performance studied under this contract are designed to address problems with filter operation that are apparently linked to characteristics of the collected ash. This work is designed to generate a data base of the key characteristics of ashes collected from operating advanced particle filters and to relate these ash properties to the operation and performance of these filters and their components. This report summarizes characterizations of ash and char samples from pressurized fluidized-bed combustion and gasification facilities. Efforts are under way to develop a method for preserving fragile filter cakes formed on ceramic filter elements. The HGCU data base was formatted for Microsoft Access 97 ® . Plans for the remainder of the project include characterization of additional samples collected during site visits to the Department of Energy / Southern Company Services Power Systems Development Facility and completion and delivery of the HGCU data base.

NONE

1998-11-30T23:59:59.000Z

471

GA Hot Cell D&D Closeout Report  

Office of Legacy Management (LM)

GENERAL ATOMICS GENERAL ATOMICS HOT CELL FACILITY DECONTAMINATION & DECOMMISSIONING PROJECT FINAL PROJECT CLOSEOUT REPORT prepared for GA HOT CELL D&D PROJECT CONTRACT NUMBERS DE-AC03-84SF11962 and DE-AC03-95SF20798 PBS VL-GA-0012 Approvals Prepared by: James Davis, III Date Project Manager, Oakland Environmental Programs Office Reviewed by: John Lee Date Deputy, Oakland Environmental Programs Office Approved by: Laurence McEwen Date Acting Director, Oakland Environmental Programs Office General Atomics Hot Cell Facility D&D Project Closeout Report Contents Page i CONTENTS CONTENTS.....................................................................................................................................

472

Cuttings Analysis At Roosevelt Hot Springs Geothermal Area (1976) | Open  

Open Energy Info (EERE)

Page Page Edit History Facebook icon Twitter icon » Cuttings Analysis At Roosevelt Hot Springs Geothermal Area (1976) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Cuttings Analysis At Roosevelt Hot Springs Geothermal Area (1976) Exploration Activity Details Location Roosevelt Hot Springs Geothermal Area Exploration Technique Cuttings Analysis Activity Date 1976 Usefulness not indicated DOE-funding Unknown Exploration Basis Determine the geologic environment of the geothermal area Notes The geologic environment of the particular areas of interest are described, including rock types, geologic structure, and other important parameters that help describe the reservoir and overlying cap rock. References Pratt, H. R.; Simonson, E. R. (1 January 1976) Geotechnical

473

Photon Upconversion with Hot Carriers in Plasmonic Systems  

E-Print Network [OSTI]

We propose a novel scheme of photon upconversion based on harnessing the energy of plasmonic hot carriers. Low-energy photons excite hot electrons and hot holes in a plasmonic nanoparticle, which are then injected into an adjacent semiconductor quantum well where they radiatively recombine to emit a photon of higher energy. We theoretically study the proposed upconversion scheme using Fermi-liquid theory and determine the upconversion quantum efficiency to be as high as 25% in 5 nm silver nanocubes. This upconversion scheme is linear in its operation, does not require coherent illumination, offers spectral tunability, and is more efficient than conventional upconverters.

Naik, Gururaj V

2015-01-01T23:59:59.000Z

474

Hot water geothermal development: opportunities and pilot plant results  

SciTech Connect (OSTI)

It has been projected that up to 11,000 MW of geothermal electric capacity may be on line in the United States by the year 2000. The majority of this capacity will come from hot water geothermal plants, as dry steam resources are limited. Currently, no commercial hot water geothermal capacity exists in the U.S., although, substantial capacity does exist in other countries. Large hot, high temperature resources exist in Southern California's Imperial Valley. Early research work has led to the technical success of a 10 MW unit at Brawley, and to the construction of second generation pilot unit at the Salton Sea resource.

Crane, G.K.

1982-08-01T23:59:59.000Z

475

Sur les groupes de transformations rigides : Th'eor`eme de l'orbite dense-ouverte  

E-Print Network [OSTI]

Sur les groupes de transformations rigides : Th'eor`eme de l'orbite dense.2.2 Premi`ere r'eduction du th'eor`eme de l'orbite dense-ouverte. 14 2.2.3 Passage au domaine d'int'egrabilit'e infinit'esimale. . . . . . 15 2.2.4 Deuxi`eme r'eduction du th'eor`eme de l'orbite dense

Zeghib, Abdelghani

476

Bozeman Hot Springs Space Heating Low Temperature Geothermal Facility |  

Open Energy Info (EERE)

Bozeman Hot Springs Space Heating Low Temperature Geothermal Facility Bozeman Hot Springs Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Bozeman Hot Springs Space Heating Low Temperature Geothermal Facility Facility Bozeman Hot Springs Sector Geothermal energy Type Space Heating Location Bozeman, Montana Coordinates 45.68346°, -111.050499° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[]}

477

Radium Hot Springs Space Heating Low Temperature Geothermal Facility | Open  

Open Energy Info (EERE)

Radium Hot Springs Space Heating Low Temperature Geothermal Facility Radium Hot Springs Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Radium Hot Springs Space Heating Low Temperature Geothermal Facility Facility Radium Hot Springs Sector Geothermal energy Type Space Heating Location Union County, Oregon Coordinates 45.2334122°, -118.0410627° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[]}

478

Miracle Hot Spring Space Heating Low Temperature Geothermal Facility | Open  

Open Energy Info (EERE)

Miracle Hot Spring Space Heating Low Temperature Geothermal Facility Miracle Hot Spring Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Miracle Hot Spring Space Heating Low Temperature Geothermal Facility Facility Miracle Hot Spring Sector Geothermal energy Type Space Heating Location Bakersfield, California Coordinates 35.3732921°, -119.0187125° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[]}

479

Covered Product Category: Hot Food Holding Cabinets | Department of Energy  

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

Hot Food Holding Cabinets Hot Food Holding Cabinets Covered Product Category: Hot Food Holding Cabinets October 7, 2013 - 11:08am Addthis ENERGY STAR Qualified Products FEMP provides acquisition guidance and Federal efficiency requirements across a variety of product categories, including hot food holding cabinets, which are covered by the ENERGY STAR® program. Federal laws and executive orders mandate that agencies meet these efficiency requirements in all procurement and acquisition actions that are not specifically exempted by law. Manufacturers display the ENERGY STAR label on complying models. For a model not displaying the label, check the qualified products lists maintained on the ENERGY STAR website. This product category overview covers the following: Meeting Energy Efficiency Requirements

480

Lolo Hot Springs Resort Space Heating Low Temperature Geothermal Facility |  

Open Energy Info (EERE)

Lolo Hot Springs Resort Space Heating Low Temperature Geothermal Facility Lolo Hot Springs Resort Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Lolo Hot Springs Resort Space Heating Low Temperature Geothermal Facility Facility Lolo Hot Springs Resort Sector Geothermal energy Type Space Heating Location Missoula County, Montana Coordinates 47.0240503°, -113.6869923° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[]}

Note: This page contains sample records for the topic "hot dense matter" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


481

Hobo Hot Springs Aquaculture Low Temperature Geothermal Facility | Open  

Open Energy Info (EERE)

Hobo Hot Springs Aquaculture Low Temperature Geothermal Facility Hobo Hot Springs Aquaculture Low Temperature Geothermal Facility Jump to: navigation, search Name Hobo Hot Springs Aquaculture Low Temperature Geothermal Facility Facility Hobo Hot Springs Sector Geothermal energy Type Aquaculture Location Carson City, Nevada Coordinates 39.192232°, -119.7344478° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[]}

482

Hunter Hot Spring Greenhouse Greenhouse Low Temperature Geothermal Facility  

Open Energy Info (EERE)

Hunter Hot Spring Greenhouse Greenhouse Low Temperature Geothermal Facility Hunter Hot Spring Greenhouse Greenhouse Low Temperature Geothermal Facility Jump to: navigation, search Name Hunter Hot Spring Greenhouse Greenhouse Low Temperature Geothermal Facility Facility Hunter Hot Spring Greenhouse Sector Geothermal energy Type Greenhouse Location Springdale, Montana Coordinates 45.738268°, -110.2271387° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[]}

483

Schutz's Hot Spring Space Heating Low Temperature Geothermal Facility |  

Open Energy Info (EERE)

Schutz's Hot Spring Space Heating Low Temperature Geothermal Facility Schutz's Hot Spring Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Schutz's Hot Spring Space Heating Low Temperature Geothermal Facility Facility Schutz's Hot Spring Sector Geothermal energy Type Space Heating Location Crouch, Idaho Coordinates 44.1151717°, -115.970954° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[]}

484

Isotopic Analysis- Fluid At Indian Valley Hot Springs Geothermal Area  

Open Energy Info (EERE)

Isotopic Analysis- Fluid At Indian Valley Hot Springs Geothermal Area Isotopic Analysis- Fluid At Indian Valley Hot Springs Geothermal Area (1990) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Isotopic Analysis- Fluid At Indian Valley Hot Springs Geothermal Area (1990) Exploration Activity Details Location Indian Valley Hot Springs Geothermal Area Exploration Technique Isotopic Analysis- Fluid Activity Date 1990 Usefulness not indicated DOE-funding Unknown Exploration Basis Determine the recharge of the area Notes Hydrogen and oxygen isotope data on waters of Coso thermal and nonthermal waters were studied. Hydrogen and oxygen isotopes do not uniquely define the recharge area for the Coso geothermal system but strongly suggest Sierran recharge with perhaps some local recharge. References

485

Weiser Hot Springs Greenhouse Low Temperature Geothermal Facility | Open  

Open Energy Info (EERE)

Weiser Hot Springs Greenhouse Low Temperature Geothermal Facility Weiser Hot Springs Greenhouse Low Temperature Geothermal Facility Jump to: navigation, search Name Weiser Hot Springs Greenhouse Low Temperature Geothermal Facility Facility Weiser Hot Springs Sector Geothermal energy Type Greenhouse Location Weiser, Idaho Coordinates 44.2509976°, -116.9693327° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[]}

486

Preliminary Assessment of the Structural Controls of Neal Hot Springs  

Open Energy Info (EERE)

Preliminary Assessment of the Structural Controls of Neal Hot Springs Preliminary Assessment of the Structural Controls of Neal Hot Springs Geothermal Field, Malhuer County, Oregon Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article: Preliminary Assessment of the Structural Controls of Neal Hot Springs Geothermal Field, Malhuer County, Oregon Abstract The Neal Hot Springs geothermal field is marked by hotsprings that effuse from opaline sinter mounds just north of BullyCreek, in Malheur County, Oregon. Production wells have highflow rates and temperatures above 138C at depths of 850-915 m.On a regional scale, the geothermal field occupies a broad zonewithin the intersection between a regional, N-striking, normalfault system within the Oregon-Idaho graben and a regionalNW-striking, normal fault system within the western Snake

487

Analysis Of Hot Springs And Associated Deposits In Yellowstone National  

Open Energy Info (EERE)

Hot Springs And Associated Deposits In Yellowstone National Hot Springs And Associated Deposits In Yellowstone National Park Using Aster And Aviris Remote Sensing Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Analysis Of Hot Springs And Associated Deposits In Yellowstone National Park Using Aster And Aviris Remote Sensing Details Activities (6) Areas (1) Regions (0) Abstract: The Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) and the Airborne Visible/IR Image Spectrometer (AVIRIS) data were used to characterize hot spring deposits in the Lower, Midway, and Upper Geyser Basins of Yellowstone National Park from the visible/near infrared (VNIR) to thermal infrared (TIR) wavelengths. Field observations of these basins provided the critical ground-truth for comparison with the

488

Broadwater Athletic Club & Hot Springs Space Heating Low Temperature  

Open Energy Info (EERE)

Athletic Club & Hot Springs Space Heating Low Temperature Athletic Club & Hot Springs Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Broadwater Athletic Club & Hot Springs Space Heating Low Temperature Geothermal Facility Facility Broadwater Athletic Club & Hot Springs Sector Geothermal energy Type Space Heating Location Helena, Montana Coordinates 46.6002123°, -112.0147188° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[]}

489

Multispectral Imaging At Buffalo Valley Hot Springs Area (Laney, 2005) |  

Open Energy Info (EERE)

Multispectral Imaging At Buffalo Valley Hot Springs Multispectral Imaging At Buffalo Valley Hot Springs Area (Laney, 2005) Exploration Activity Details Location Buffalo Valley Hot Springs Area Exploration Technique Multispectral Imaging Activity Date Usefulness useful DOE-funding Unknown Notes Remote Sensing for Exploration and Mapping of Geothermal Resources, Wendy Calvin, 2005. Task 1: Detailed analysis of hyperspectral imagery obtained in summer of 2003 over Brady's Hot Springs region was completed and validated (Figure 1). This analysis provided a local map of both sinter and tufa deposits surrounding the Ormat plant, identified fault extensions not previously recognized from field mapping and has helped constrain where to put additional wells that were drilled at the site. Task 2: Initial analysis of Landsat and ASTER data for Buffalo Valley and Pyramid Lake was

490

Sand Dunes Hot Spring Aquaculture Low Temperature Geothermal Facility |  

Open Energy Info (EERE)

Sand Dunes Hot Spring Aquaculture Low Temperature Geothermal Facility Sand Dunes Hot Spring Aquaculture Low Temperature Geothermal Facility Jump to: navigation, search Name Sand Dunes Hot Spring Aquaculture Low Temperature Geothermal Facility Facility Sand Dunes Hot Spring Sector Geothermal energy Type Aquaculture Location Hooper, Colorado Coordinates 37.7427775°, -105.8752987° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[]}

491

Upper Hot Creek Ranch Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Upper Hot Creek Ranch Geothermal Area Upper Hot Creek Ranch Geothermal Area (Redirected from Upper Hot Creek Ranch Area) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Upper Hot Creek Ranch Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (0) 9 Exploration Activities (2) 10 References Area Overview Geothermal Area Profile Location: Nevada Exploration Region: Northern Basin and Range Geothermal Region GEA Development Phase: 2008 USGS Resource Estimate Mean Reservoir Temp: Estimated Reservoir Volume: Mean Capacity: Click "Edit With Form" above to add content History and Infrastructure

492

Baumgartner Hot Springs Pool & Spa Low Temperature Geothermal Facility |  

Open Energy Info (EERE)

Baumgartner Hot Springs Pool & Spa Low Temperature Geothermal Facility Baumgartner Hot Springs Pool & Spa Low Temperature Geothermal Facility Jump to: navigation, search Name Baumgartner Hot Springs Pool & Spa Low Temperature Geothermal Facility Facility Baumgartner Hot Springs Sector Geothermal energy Type Pool and Spa Location Featherville, Idaho Coordinates 43.6098966°, -115.2581378° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[]}

493

Hot Showers, Fresh Laundry, Clean Dishes | Department of Energy  

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

Hot Showers, Fresh Laundry, Clean Dishes Hot Showers, Fresh Laundry, Clean Dishes Hot Showers, Fresh Laundry, Clean Dishes March 5, 2013 - 11:17am Addthis The GE GeoSpring™ Electric Heat Pump Water Heater is readily integrated into new and existing home designs. Taking up the same footprint as a traditional 50-gallon tank water heater, the Electric Heat Pump Water Heater uses the existing water heater's plumbing and electrical connections. Credit: GE The GE GeoSpring(tm) Electric Heat Pump Water Heater is readily integrated into new and existing home designs. Taking up the same footprint as a traditional 50-gallon tank water heater, the Electric Heat Pump Water Heater uses the existing water heater's plumbing and electrical connections. Credit: GE To introduce this new electric heat pump water heater, GE ran a memorable ad during the 2010 Winter Olympics featuring snow monkeys enjoying a hot soak. Credit: GE

494

NREL: Learning - Student Resources on Solar Hot Water  

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

Solar Hot Water Solar Hot Water Photo of a school building next to a pond. Roy Lee Walker Elementary School in Texas incorporates many renewable energy design features, including solar hot water heating. The following resources will help you learn more about solar water heating systems. If you are unfamiliar with this technology, see the introduction to solar hot water. Grades 7-12 NREL Educational Resources Educational resources available to students from the National Renewable Energy Laboratory. High School and College Level U.S. Department of Energy's Energy Savers: Solar Water Heaters Features comprehensive basic information and resources. U.S. Department of Energy's Energy Savers: Solar Swimming Pool Heaters Features comprehensive basic information and resources. U.S. Department of Energy Solar Decathlon

495

Jackson Hot Springs Lodge Space Heating Low Temperature Geothermal Facility  

Open Energy Info (EERE)

Hot Springs Lodge Space Heating Low Temperature Geothermal Facility Hot Springs Lodge Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Jackson Hot Springs Lodge Space Heating Low Temperature Geothermal Facility Facility Jackson Hot Springs Lodge Sector Geothermal energy Type Space Heating Location Jackson, Montana Coordinates 45.3679793°, -113.4089438° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[]}

496

Donlay Ranch Hot Spring Greenhouse Low Temperature Geothermal Facility |  

Open Energy Info (EERE)

Donlay Ranch Hot Spring Greenhouse Low Temperature Geothermal Facility Donlay Ranch Hot Spring Greenhouse Low Temperature Geothermal Facility Jump to: navigation, search Name Donlay Ranch Hot Spring Greenhouse Low Temperature Geothermal Facility Facility Donlay Ranch Hot Spring Sector Geothermal energy Type Greenhouse Location Boise County, Idaho Coordinates 43.9604787°, -115.8563106° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[]}

497

DOE Solar Decathlon: News Blog » Hot Water  

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

Hot Water Hot Water Below you will find Solar Decathlon news from the Hot Water archive, sorted by date. New Contest Data Displays Provide Insight into Competition Scoring Saturday, October 5, 2013 By Solar Decathlon New contest data displays are now available on the U.S. Department of Energy Solar Decathlon website. If you are interested in the real-time performance of each house and want to keep a close eye on the competition, check out the Contests section pages. In the Contests section, the pages for the measured contests (Comfort Zone, Hot Water, Appliances, Home Entertainment, and Energy Balance) explain the contest requirements and provide real-time graphical displays of the accumulated measurements/scores for each team. Roll your cursor over the graphics to see more detailed information about each contest. For example,

498

Medical Hot Springs Space Heating Low Temperature Geothermal Facility |  

Open Energy Info (EERE)

Hot Springs Space Heating Low Temperature Geothermal Facility Hot Springs Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Medical Hot Springs Space Heating Low Temperature Geothermal Facility Facility Medical Hot Springs Sector Geothermal energy Type Space Heating Location Union County, Oregon Coordinates 45.2334122°, -118.0410627° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[]}

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Vichy Hot Springs Space Heating Low Temperature Geothermal Facility | Open  

Open Energy Info (EERE)

Vichy Hot Springs Space Heating Low Temperature Geothermal Facility Vichy Hot Springs Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Vichy Hot Springs Space Heating Low Temperature Geothermal Facility Facility Vichy Hot Springs Sector Geothermal energy Type Space Heating Location Ukiah, California Coordinates 39.1501709°, -123.2077831° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[]}

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Kelly Hot Springs Aquaculture Low Temperature Geothermal Facility | Open  

Open Energy Info (EERE)

Kelly Hot Springs Aquaculture Low Temperature Geothermal Facility Kelly Hot Springs Aquaculture Low Temperature Geothermal Facility Jump to: navigation, search Name Kelly Hot Springs Aquaculture Low Temperature Geothermal Facility Facility Kelly Hot Springs Sector Geothermal energy Type Aquaculture Location Alturas, California Coordinates 41.4871146°, -120.5424555° Loading map... {"minzoom":false,"mappingservic