National Library of Energy BETA

Sample records for of2 state ca

  1. Charge states of Ca atoms in {beta}-dicalcium silicate

    SciTech Connect (OSTI)

    Mori, Kazuhiro . E-mail: kmori@rri.kyoto-u.ac.jp; Kiyanagi, Ryoji; Yonemura, Masao; Iwase, Kenji; Sato, Takashi; Itoh, Keiji; Sugiyama, Masaaki; Kamiyama, Takashi; Fukunaga, Toshiharu

    2006-11-15

    In order to study the crystal structure of {beta}-bar Ca{sub 2}SiO{sub 4}, time-of-flight neutron powder diffraction experiments were carried out at temperatures between room temperature (RT) and 600 deg. C. Rietveld refinement at RT has shown that {beta}-bar Ca{sub 2}SiO{sub 4} is monoclinic based on P2{sub 1}/n symmetry and two different types of Ca sites, Ca(1) and Ca(2). All interatomic distances within 3A were calculated, with the valences of Ca(1) with seven Ca-O bonds and Ca(2) with eight were estimated to be 1.87+ and 2+ by the Zachariasen-Brown-Altermatt formula (bond valence sum). Applying charge neutrality the two charge states of Ca in {beta}-bar Ca{sub 2}SiO{sub 4} are [Ca(1)SiO{sub 4}]{sup 2-} and Ca(2){sup 2+}, respectively. Furthermore, the [Ca(1)SiO{sub 4}]{sup 2-} unit has the shortest Ca-O distance, and its length kept constant at 2.23A at all temperatures. In the short-range structure analysis at RT, the shortest Ca-O bond was also observed in a radial distribution function. These results imply that the [Ca(1)SiO{sub 4}]{sup 2-} unit has covalency on the shortest Ca-O in addition to Si-O.

  2. CA_OPPUSST - Cantera OPUS Steady State

    Energy Science and Technology Software Center (OSTI)

    2005-03-01

    The Cantera Opus Steady State (ca-opusst) applications solves steady reacting flow problems in opposed-flow geometries. It is a 1-0 application that represents axisymmetnc 3-0 physical systems that can be reduced via a similarity transformation to a 1-0 mathematical representation. The code contain solutions of the general dynamic equations for the particle distribution functions using a sectional model to describe the particle distribution function. Operators for particle nucleation, coagulation, condensation (i.e., growth/etching via reactions with themore » gas ambient), internal particle reactions. particle transport due to convection and due to molecular transport, are included in the particle general dynamics equation. Heat transport due to radiation exchange of the environment with particles in local thermal equilibrium to the surrounding gas will be included in the enthalpy conservation equation that is solved for the coupled gas! particle system in an upcoming version of the code due in June 2005. The codes use Cantera , a C++ Cal Tech code, for determination of gas phase species transport, reaction, and thermodynamics physical properties and source terms. The Codes use the Cantera Aerosol Dynamics Simulator (CADS) package, a general library for aerosol modeling, to calculate properties and source terms for the aerosol general dynamics equation, including particle formation from gas phase reactions, particle surface chemistry (growth and oxidation), bulk particle chemistry, particle transport by Brownian diffusion, thermophoresis, and diffusiophoresis, and thermal radiative transport involving particles. Also included are post-processing programs, cajost and cajrof, to extract ascii data from binary output files to produce plots.« less

  3. Ca

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

    P O. Box 3090 Ca rlsbad, New Mexico 88221 Mr. John Kieling , Acting Bureau Chief Hazardous Waste Bureau MAY 1 6 2012 New Mexico Environment Department 2905 E. Rodeo Park Drive, Bldg . 1 Santa Fe, New Mexico 87505-6303 Subject: Transmittal of the Waste Isolation Pilot Plant Revised Calendar Year 2005-2008 Culebra Potentiometric Surface Map Package Dear Mr. Kieling: On August 5 , 2011 , the New Mexico Environmental Department (NMED) approved the Groundwater Work Plan submitted as a condition to

  4. Presentation for Hydrogen State and Regional Workshop, March 30, 2008, Sacramento, CA

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

    and Fuel Cell Initiative Sacramento Conference Center, Sacramento, CA March 30, 2008 Policies to Advance the Development and Deployment of Fuel Cells: Case Studies in the Move to Mainstream Success Daniel Dutcher Clean Energy Group Presentation Overview Role of States Selected State Funding Programs: New York State Energy Research and Development Authority (NYSERDA)- Subsidies for Commercially Available Fuel Cells and Non-Commercialized Fuel Cell Technologies. Connecticut Clean Energy

  5. Electronic Structure and Oxidation State Changes in the Mn (4) Ca Cluster of Photosystem II

    SciTech Connect (OSTI)

    Yano, J.; Pushkar, Y.; Messinger, J.; Bergmann, U.; Glatzel, P.; Yachandra, V.K.; /SLAC

    2012-08-17

    Oxygen-evolving complex (Mn{sub 4}Ca cluster) of Photosystem II cycles through five intermediate states (S{sub i}-states, i = 0-4) before a molecule of dioxygen is released. During the S-state transitions, electrons are extracted from the OEC, either from Mn or alternatively from a Mn ligand. The oxidation state of Mn is widely accepted as Mn{sub 4}(III{sub 2},IV{sub 2}) and Mn{sub 4}(III,IV{sub 3}) for S{sub 1} and S{sub 2} states, while it is still controversial for the S{sub 0} and S{sub 3} states. We used resonant inelastic X-ray scattering (RIXS) to study the electronic structure of Mn{sub 4}Ca complex in the OEC. The RIXS data yield two-dimensional plots that provide a significant advantage by obtaining both K-edge pre-edge and L-edge-like spectra (metal spin state) simultaneously. We have collected data from PSII samples in the each of the S-states and compared them with data from various inorganic Mn complexes. The spectral changes in the Mn 1s2p{sub 3/2} RIXS spectra between the S-states were compared to those of the oxides of Mn and coordination complexes. The results indicate strong covalency for the electronic configuration in the OEC, and we conclude that the electron is transferred from a strongly delocalized orbital, compared to those in Mn oxides or coordination complexes. The magnitude for the S{sub 0} to S{sub 1}, and S{sub 1} to S{sub 2} transitions is twice as large as that during the S{sub 2} to S{sub 3} transition, indicating that the electron for this transition is extracted from a highly delocalized orbital with little change in charge density at the Mn atoms.

  6. Nature of the insulating ground state of the 5d postperovskite CaIrO3

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

    Kim, Sun -Woo; Liu, Chen; Kim, Hyun -Jung; Lee, Jun -Ho; Yao, Yongxin; Ho, Kai -Ming; Cho, Jun -Hyung

    2015-08-26

    In this study, the insulating ground state of the 5d transition metal oxide CaIrO3 has been classified as a Mott-type insulator. Based on a systematic density functional theory (DFT) study with local, semilocal, and hybrid exchange-correlation functionals, we reveal that the Ir t2g states exhibit large splittings and one-dimensional electronic states along the c axis due to a tetragonal crystal field. Our hybrid DFT calculation adequately describes the antiferromagnetic (AFM) order along the c direction via a superexchange interaction between Ir4+ spins. Furthermore, the spin-orbit coupling (SOC) hybridizes the t2g states to open an insulating gap. These results indicate thatmore » CaIrO3 can be represented as a spin-orbit Slater insulator, driven by the interplay between a long-range AFM order and the SOC. Such a Slater mechanism for the gap formation is also demonstrated by the DFT + dynamical mean field theory calculation, where the metal-insulator transition and the paramagnetic to AFM phase transition are concomitant with each other.« less

  7. Nature of the insulating ground state of the5d postperovskite CaIrO?

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

    Kim, Sun -Woo; Liu, Chen; Kim, Hyun -Jung; Lee, Jun -Ho; Yao, Yongxin; Ho, Kai -Ming; Cho, Jun -Hyung

    2015-08-26

    In this study, the insulating ground state of the 5d transition metal oxide CaIrO3 has been classified as a Mott-type insulator. Based on a systematic density functional theory (DFT) study with local, semilocal, and hybrid exchange-correlation functionals, we reveal that the Ir t2g states exhibit large splittings and one-dimensional electronic states along the c axis due to a tetragonal crystal field. Our hybrid DFT calculation adequately describes the antiferromagnetic (AFM) order along the c direction via a superexchange interaction between Ir4+ spins. Furthermore, the spin-orbit coupling (SOC) hybridizes the t2g states to open an insulating gap. These results indicate thatmoreCaIrO3 can be represented as a spin-orbit Slater insulator, driven by the interplay between a long-range AFM order and the SOC. Such a Slater mechanism for the gap formation is also demonstrated by the DFT + dynamical mean field theory calculation, where the metal-insulator transition and the paramagnetic to AFM phase transition are concomitant with each other.less

  8. Origin State>> CA CA ID ID ID IL KY MD MO NM NM NY NY OH SC

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

    MO NM NM NY NY OH SC TN TN TN, WA, CA TN TN TN TN Total Shipments by Route Lawrence Livermore National Laboratory General Atomics Batelle Energy Alliance Idaho National Laboratory Advanced Mixed Waste Treatment Project Argonne National Laboratory Paducah Gaseous Diffusion Plant Aberdeen Proving Grounds National Security Technologies Sandia National Laboratory Los Alamos National Laboratory Brookhaven National Laboratory CH2M Hill B&W West Valley, LLC Portsmouth Gaseous Diffusion Plant

  9. Origin State>> CA CA ID ID ID IL KY MD NM NM NV NY NY OH TN

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

    NM NM NV NY NY OH TN TN TN, WA, CA TN TN TN TN TX Total Shipments by Route Lawrence Livermore National Laboratory General Atomics Advanced Mixed Waste Treatment Project Batelle Energy Alliance Idaho National Laboratory Argonne National Laboratory Paducah Gaseous Diffusion Plant Aberdeen Proving Ground Los Alamos National Laboratory Sandia National Laboratory National Security Technologies Brookhaven National Laboratory West Valley Environmental Services Portsmouth Gaseous Diffusion Plant

  10. Origin State>> CA CA ID ID IL KY NJ NM NY NY NV OH OH OH SC

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

    Mix Wastew Treatment Project Argonne National Laboratory Paducah Gaseous Diffusion Plant Princeton Plasma Physics Laboratory Sandia National Laboratory Brookhaven National Laboratory West Valley Demonstration Project National Security Technologies, Inc. Mound Closure Project Portsmouth Gaseous Diffusion Plant Fernald Closure Project Savannah River Site BWXT Y-12 Plant Duratek Nuclear Fuels UT-Battelle Bechtel Jacobs Permafix M&EC EnergX (Foster Wheeler) Pantex Plant SOUTHERN I-15, CA-127,

  11. Origin State>> CA ID ID ID IL KY NV NY NY OH TN TN TN, WA, CA

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

    NV NY NY OH TN TN TN, WA, CA TN TN TN TN TX Total Shipments by Route Lawrence Livermore National Laboratory Advanced Mixed Waste Treatment Project Batelle Energy Alliance Idaho National Laboratory Argonne National Laboratory Paducah Gaseous Diffusion Plant National Security Technologies Brookhaven National Laboratory West Valley Environmental Services Portsmouth Gaseous Diffusion Plant Duratek/Energy Solutions Babcox & Wilcox Technical Services Y-12 Plant Materials & Energy Corporation

  12. Origin State>> CA ID ID ID IL MD NM NM NY OH TN TN TN, WA, CA

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

    NY OH TN TN TN, WA, CA TN TN TN TX Total Shipments by Route Lawrence Livermore National Laboratory Batelle Energy Alliance Idaho National Laboratory Advanced Mixed Waste Treatment Project Argonne National Laboratory Aberdeen Proving Ground Sandia National Laboratory Los Alamos National Laboratory Brookhaven National Laboratory Portsmouth Gaseous Diffusion Plant Duratek/Energy Solutions Babcox & Wilcox Technical Services Y-12 Plant Materials & Energy Corporation (M&EC) Perma-Fix

  13. Origin State>> CA ID ID ID IL NM NM OH TN TN TN, WA, CA TN TN

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

    NM NM OH TN TN TN, WA, CA TN TN TN TN TX Total Shipments by Route Lawrence Livermore National Laboratory Batelle Energy Alliance Idaho National Laboratory Advanced Mixed Waste Treatment Project Argonne National Laboratory Sandia National Laboratory Los Alamos National Laboratory Portsmouth Gaseous Diffusion Plant Duratek/Energy Solutions Babcox & Wilcox Technical Services Y-12 Plant Materials & Energy Corporation (M&EC) Perma-Fix Nuclear Fuels Services Wastren Advantage, Inc.

  14. Investigation of Spatial Variation of Sea States Offshore of Humboldt Bay CA Using a Hindcast Model.

    SciTech Connect (OSTI)

    Dallman, Ann Renee; Neary, Vincent Sinclair

    2014-10-01

    Spatial variability of sea states is an important consideration when performing wave resource assessments and wave resource characterization studies for wave energy converter (WEC) test sites and commercial WEC deployments. This report examines the spatial variation of sea states offshore of Humboldt Bay, CA, using the wave model SWAN . The effect of depth and shoaling on bulk wave parameters is well resolved using the model SWAN with a 200 m grid. At this site, the degree of spatial variation of these bulk wave parameters, with shoaling generally perpendicular to the depth contours, is found to depend on the season. The variation in wave height , for example, was higher in the summer due to the wind and wave sheltering from the protruding land on the coastline north of the model domain. Ho wever, the spatial variation within an area of a potential Tier 1 WEC test site at 45 m depth and 1 square nautical mile is almost negligible; at most about 0.1 m in both winter and summer. The six wave characterization parameters recommended by the IEC 6 2600 - 101 TS were compared at several points along a line perpendicular to shore from the WEC test site . As expected, these parameters varied based on depth , but showed very similar seasonal trends.

  15. Presentation for Hydrogen State and Regional Workshop, March 30, 2008, Sacramento, CA

    Broader source: Energy.gov [DOE]

    Fuel Cells for Critical Power/Prime Power with three examples: First National Bank of Omaha, Fresno CA Guaranteed Savings Buidling, Camp Pendleton Marine Corps Base

  16. Nature of the insulating ground state of the 5d postperovskite CaIrO3

    SciTech Connect (OSTI)

    Kim, Sun -Woo; Liu, Chen; Kim, Hyun -Jung; Lee, Jun -Ho; Yao, Yongxin; Ho, Kai -Ming; Cho, Jun -Hyung

    2015-08-26

    In this study, the insulating ground state of the 5d transition metal oxide CaIrO3 has been classified as a Mott-type insulator. Based on a systematic density functional theory (DFT) study with local, semilocal, and hybrid exchange-correlation functionals, we reveal that the Ir t2g states exhibit large splittings and one-dimensional electronic states along the c axis due to a tetragonal crystal field. Our hybrid DFT calculation adequately describes the antiferromagnetic (AFM) order along the c direction via a superexchange interaction between Ir4+ spins. Furthermore, the spin-orbit coupling (SOC) hybridizes the t2g states to open an insulating gap. These results indicate that CaIrO3 can be represented as a spin-orbit Slater insulator, driven by the interplay between a long-range AFM order and the SOC. Such a Slater mechanism for the gap formation is also demonstrated by the DFT + dynamical mean field theory calculation, where the metal-insulator transition and the paramagnetic to AFM phase transition are concomitant with each other.

  17. Interfacial chemical reaction and multiple gap state formation on three layer cathode in organic light-emitting diode: Ca/BaF{sub 2}/Alq{sub 3}

    SciTech Connect (OSTI)

    Kim, Tae Gun; Kim, Jeong Won; Lee, Hyunbok; Yi, Yeonjin; Lee, Seung Mi

    2015-07-14

    A three layer cathode is a promising stack structure for long lifetime and high efficiency in organic light-emitting diodes. The interfacial chemical reactions and their effects on electronic structures for alkaline-earth metal (Ca, Ba)/Alq{sub 3} [tris(8-hydroxyquinolinato)aluminum] and Ca/BaF{sub 2}/Alq{sub 3} are investigated using in-situ X-ray and ultraviolet photoelectron spectroscopy, as well as molecular model calculation. The BaF{sub 2} interlayer initially prevents direct contact between Alq{sub 3} and the reactive Ca metal, but it is dissociated into Ba and CaF{sub 2} by the addition of Ca. As the Ca thickness increases, the Ca penetrates the interlayer to directly participate in the reaction with the underlying Alq{sub 3}. This series of chemical reactions takes place irrespective of the BaF{sub 2} buffer layer thickness as long as the Ca overlayer thickness is sufficient. The interface reaction between the alkaline-earth metal and Alq{sub 3} generates two energetically separated gap states in a sequential manner. This phenomenon is explained by step-by-step charge transfer from the alkaline-earth metal to the lowest unoccupied molecular orbital states of Alq{sub 3}, forming new occupied states below the Fermi level.

  18. Control of magnetic, nonmagnetic, and superconducting states in annealed Ca(Fe1–xCox)₂As₂

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

    Ran, S.; Bud'ko, S. L.; Straszheim, W. E.; Soh, J.; Kim, M. G.; Kreyssig, A.; Goldman, A. I.; Canfield, P. C.

    2012-06-22

    We have grown single-crystal samples of Co substituted CaFe₂As₂ using an FeAs flux and systematically studied the effects of annealing/quenching temperature on the physical properties of these samples. Whereas the as-grown samples (quenched from 960°C) all enter the collapsed tetragonal phase upon cooling, annealing/quenching temperatures between 350 and 800°C can be used to tune the system to low-temperature antiferromagnetic/orthorhomic or superconducting states as well. The progression of the transition temperature versus annealing/quenching temperature (T-Tanneal) phase diagrams with increasing Co concentration shows that, by substituting Co, the antiferromagnetic/orthorhombic and the collapsed tetragonal phase lines are separated and bulk superconductivity is revealed.more » We established a 3D phase diagram with Co concentration and annealing/quenching temperature as two independent control parameters. At ambient pressure, for modest x and Tanneal values, the Ca(Fe₁₋xCox)₂As₂ system offers ready access to the salient low-temperature states associated with Fe-based superconductors: antiferromagnetic/orthorhombic, superconducting, and nonmagnetic/collapsed tetragonal.« less

  19. Presentation for Hydrogen State and Regional Workshop, March 30, 2008, Sacramento, CA

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

    Cells for Critical Power/Prime Power State and Regional H d I iti ti W k h Hydrogen Initiatives Workshop Sacramento, California Keith A Spitznagel Senior VP, Marketing March 30, 2008 * Three Real World Examples - First National Bank of Omaha - Fresno California Guaranteed Savings Building - Camp Pendleton Marine Corps Base * First National Bank of Omaha - Four 200 kilowatt PAFC - 800 kilowatts total - Fuel cells are part of high availability critical power system 1 First National Bank of Omaha *

  20. Origin State>> CA ID ID ID IL KY MD NM NM NY NY OH SC TN TN

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

    MD NM NM NY NY OH SC TN TN TN, WA, CA TN TN TN TN TX Total Shipments by Route Lawrence Livermore National Laboratory Advanced Mixed Waste Treatment Project Batelle Energy Alliance Idaho National Laboratory Argonne National Laboratory Paducah Gaseous Diffusion Plant Aberdeen Proving Ground Los Alamos National Laboratory Sandia National Laboratory Brookhaven National Laboratory West Valley Environmental Services Portsmouth Gaseous Diffusion Plant Savannah River Site Duratek/Energy Solutions Babcox

  1. Origin State>> CA ID ID ID IL MD NM NM NV NY NY OH SC TN TN

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

    NV NY NY OH SC TN TN TN, WA, CA TN TN TN Total Shipments by Route Lawrence Livermore National Laboratory Batelle Energy Alliance Idaho National Laboratory Advanced Mixed Waste Treatment Project Argonne National Laboratory Aberdeen Proving Ground Sandia National Laboratory Los Alamos National Laboratory National Security Technologies Brookhaven National Laboratory West Valley Environmental Services Portsmouth Gaseous Diffusion Plant Savannah River Site Duratek/Energy Solutions Babcox & Wilcox

  2. Origin State>> CA ID ID IL IL KY NM NM NV NY OH TN TN TN, WA,

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

    IL IL KY NM NM NV NY OH TN TN TN, WA, CA TN TN TN TN Total Shipments by Route Lawrence Livermore National Laboratory Batelle Energy Alliance Idaho National Laboratory Energx Argonne National Laboratory Argonne National Laboratory Paducah Gaseous Diffusion Plant Sandia National Laboratory Los Alamos National Laboratory National Security Technologies West Valley Environmental Services Portsmouth Gaseous Diffusion Plant Duratek/Energy Solutions Babcox & Wilcox Technical Services Y-12 Plant

  3. CA.0

    Office of Legacy Management (LM)

    offergy Washington, DC 20545 *. CA.0 MAY 2 9 1987 .r ,. Hr. Carl Schafer Director of Environmental Poli,cy Office of the Deputy Assistant Secretary of Defense for Installations ...

  4. CA.0

    Office of Legacy Management (LM)

    of_f$ergy Washington, DC 20545 *. CA.0 MAY 2 9 1987 .r ,. Hr. Carl Schafer Director of Environmental Poli,cy Office of the Deputy Assistant Secretary of Defense for Installations Pentagon . ..&&&.@.&&;-D.C. 20301 Dear Mr.~:Schafer: As you know, the Department of Ene,rgy (DOE) is implementing a program to identify sites that may be radiologically contaminated as a result of DOE predecessor operations and to correct any pioblems associated with this contamination if there is

  5. Continuous cross-over from ferroelectric to relaxor state and piezoelectric properties of BaTiO{sub 3}-BaZrO{sub 3}-CaTiO{sub 3} single crystals

    SciTech Connect (OSTI)

    Benabdallah, F.; Veber, P. Prakasam, M.; Viraphong, O.; Maglione, M.; Shimamura, K.

    2014-04-14

    Optimal properties like piezoelectricity can be found in polarizable materials for which the structure changes sharply under small composition variations in the vicinity of their morphotropic phase boundary or the triple point in their isobaric temperature-composition phase diagram. In the latter, lead-free (Ba{sub 0.850}Ca{sub 0.150})(Ti{sub 0.900}Zr{sub 0.100})O{sub 3} ceramics exhibit outstanding piezoelectric coefficients. For the first time, we report the growth of piezoelectric lead-free single crystals in the BaTiO{sub 3}-BaZrO{sub 3}-CaTiO{sub 3} pseudo-ternary system. The stoichiometry control in the CaO-BaO-TiO{sub 2}-ZrO{sub 2} solid solution led to single crystals with various compositions ranging from (Ba{sub 0.857}Ca{sub 0.143})(Ti{sub 0.928}Zr{sub 0.072})O{sub 3} to (Ba{sub 0.953}Ca{sub 0.047})(Ti{sub 0.427}Zr{sub 0.573})O{sub 3}. We evidenced a continuous cross-over from a ferroelectric state at high titanium content to a relaxor one on increasing the zirconium content. Such a property tuning is rather seldom observed in lead-free ferroelectrics and confirms what was already reported for ceramics. Single crystal with (Ba{sub 0.838}Ca{sub 0.162})(Ti{sub 0.854}Zr{sub 0.146})O{sub 3} composition, which has been grown and oriented along [001] crystallographic direction, displayed electromechanical coefficients d{sub 31} and k{sub 31} of 93 pC.N{sup −1} and 0.18, respectively, near the room temperature (T = 305 K)

  6. Quasiparticle description of (2+1)- flavor lattice QCD equation of state

    SciTech Connect (OSTI)

    Chandra, Vinod; Ravishankar, V.

    2011-10-01

    A quasiparticle model has been employed to describe the (2+1)-flavor lattice QCD equation of state with physical quark masses. The interaction part of the equation of state has been mapped to the effective fugacities of otherwise noninteracting quasigluons and quasiquarks. The mapping is found to be exact for the equation of state. The model leads to nontrivial dispersion relations for quasipartons. The dispersion relations, effective quasiparticle number densities, and trace anomaly have been investigated employing the model. A virial expansion for the equation of state has further been obtained to investigate the role of interactions in quark-gluon plasma. Finally, Debye screening in quark-gluon plasma has been studied employing the model.

  7. Spin excitations used to probe the nature of exchange coupling in the magnetically ordered ground state of Pr0.5Ca0.5MnO3

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

    Ewings, R. A.; Perring, T. G.; Sikora, O.; Abernathy, D. L.; Tomioka, Y.; Tokura, Y.

    2016-07-06

    We have used time-of-flight inelastic neutron scattering to measure the spin wave spectrum of the canonical half-doped manganite Pr0.5Ca0.5MnO3 in its magnetic and orbitally ordered phase. Comparison of the data, which cover multiple Brillouin zones and the entire energy range of the excitations, with several different models shows that only the CE-type ordered state provides an adequate description of the magnetic ground state, provided interactions beyond nearest neighbor are included. We are able to rule out a ground state in which there exist pairs of dimerized spins which interact only with their nearest neighbors. The Zener polaron ground state, whichmore » comprises strongly bound magnetic dimers, can be ruled out on the basis of gross features of the observed spin wave spectrum. A model with weaker dimerization reproduces the observed dispersion but can be ruled out on the basis of subtle discrepancies between the calculated and observed structure factors at certain positions in reciprocal space. Adding further neighbor interactions results in almost no dimerization, i.e. interpolating back to the CE model. These results are consistent with theoretical analysis of the degenerate double exchange model for half-doping.« less

  8. RAPID/Roadmap/9-CA-a | Open Energy Information

    Open Energy Info (EERE)

    Permitting Information Desktop Toolkit BETA About Bulk Transmission Geothermal Hydropower Solar Tools Contribute Contact Us State Environmental Review Process (9-CA-a) The...

  9. RAPID/Roadmap/14-CA-a | Open Energy Information

    Open Energy Info (EERE)

    Contact Us Nonpoint Source Pollution (14-CA-a) The California State Water Resources Control Board (SWRCB) and the California Coastal Commission (CCC), in coordination with the...

  10. RAPID/Roadmap/4-CA-a | Open Energy Information

    Open Energy Info (EERE)

    Permitting Information Desktop Toolkit BETA About Bulk Transmission Geothermal Hydropower Solar Tools Contribute Contact Us State Exploration Process (4-CA-a) 04CAAExploration.pdf...

  11. DOE - Office of Legacy Management -- Berkeley CA Site - CA 03

    Office of Legacy Management (LM)

    FUSRAP Considered Sites Berkeley, CA Alternate Name(s): University of California Gilman Hall, University of California CA.03-1 Location: Gilman Hall, University of California, ...

  12. CA, State Offshore Proved Nonproducing Reserves

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

    46 47 62 53 52 46 1996-2014 Lease Condensate (million bbls) 0 0 2 1 0 0 1998-2014 Total Gas (billion cu ft) 25 26 33 21 13 12 1996-2014 Nonassociated Gas (billion cu ft) 3 0 2 1 0 0 1996-2014 Associated Gas (billion cu ft) 22 26 31 20 13 12

  13. Documnet for Hydrogen State and Regional Workshop, March 30,...

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

    Documnet for Hydrogen State and Regional Workshop, March 30, 2008, Sacramento, CA Documnet for Hydrogen State and Regional Workshop, March 30, 2008, Sacramento, CA Consumer Trends ...

  14. State

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

    Created on: 8/26/2016 3:22:30 PM Table 2. Natural gas consumption in the United States, 2011-2016 (billion cubic feet, or as indicated) Year and Month Lease and Plant Fuel a Pipeline and Distribution Use b Delivered to Consumers Total Consumption Heating Value c (Btu per cubic foot) Residential Commercial Industrial Electric Power Vehicle Fuel Total 2011 Total 1,323 688 4,714 3,155 6,994 7,574 30 22,467 24,477 1,022 2012 Total 1,396 731 4,150 2,895 7,226 9,111 30 23,411 25,538 1,024 2013 Total

  15. Emergence of coherence in the charge-density wave state of 2H-NbSe2

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

    Chatterjee, U.; Zhao, J.; Iavarone, M.; Di Capua, R.; Castellan, J. P.; Karapetrov, G.; Malliakas, C. D.; Kanatzidis, M. G.; Claus, H.; Ruff, J. P. C.; et al

    2015-02-17

    A charge-density wave (CDW) state has a broken symmetry described by a complex order parameter with an amplitude and a phase. The conventional view, based on clean, weak-coupling systems, is that a finite amplitude and long-range phase coherence set in simultaneously at the CDW transition temperature Tcdw. Here we investigate, using photoemission, X-ray scattering and scanning tunnelling microscopy, the canonical CDW compound 2H-NbSe2 intercalated with Mn and Co, and show that the conventional view is untenable. We find that, either at high temperature or at large intercalation, CDW order becomes short-ranged with a well-defined amplitude, which has impacts on themoreelectronic dispersion, giving rise to an energy gap. The phase transition at Tcdw marks the onset of long-range order with global phase coherence, leading to sharp electronic excitations. Our observations emphasize the importance of phase fluctuations in strongly coupled CDW systems and provide insights into the significance of phase incoherence in pseudogap states.less

  16. Emergence of coherence in the charge-density wave state of 2H-NbSe2

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

    Chatterjee, U.; Zhao, J.; Iavarone, M.; Di Capua, R.; Castellan, J. P.; Karapetrov, G.; Malliakas, C. D.; Kanatzidis, M. G.; Claus, H.; Ruff, J. P. C.; et al

    2015-02-17

    A charge-density wave (CDW) state has a broken symmetry described by a complex order parameter with an amplitude and a phase. The conventional view, based on clean, weak-coupling systems, is that a finite amplitude and long-range phase coherence set in simultaneously at the CDW transition temperature Tcdw. Here we investigate, using photoemission, X-ray scattering and scanning tunnelling microscopy, the canonical CDW compound 2H-NbSe2 intercalated with Mn and Co, and show that the conventional view is untenable. We find that, either at high temperature or at large intercalation, CDW order becomes short-ranged with a well-defined amplitude, which has impacts on themore » electronic dispersion, giving rise to an energy gap. The phase transition at Tcdw marks the onset of long-range order with global phase coherence, leading to sharp electronic excitations. As a result, our observations emphasize the importance of phase fluctuations in strongly coupled CDW systems and provide insights into the significance of phase incoherence in ‘pseudogap’ states.« less

  17. RAPID/Roadmap/17-CA-a | Open Energy Information

    Open Energy Info (EERE)

    Tools Contribute Contact Us State Aesthetic Concerns (17-CA-a) Page Does Not Exist.pdf Error creating thumbnail: Page number not in range. Error creating thumbnail: Page number...

  18. CA.O-O

    Office of Legacy Management (LM)

    3sR L C, C II Department of Energy -e\ ' Washington, DC 20545 CA.O-O - 0 MAY 2 9 1987 Mr. Carl Schafer Director of Environmental Policy Office of the Deputy Assistant Secretary of Defense for Installations Pentagon Washington, D.C. 20301 Dear Mr. Schafer: As you know, the Department of Energy (DOE) is implementing a program to identify sites that may be radiologically contaminated as a result of DOE predecessor operations and to correct any problems associated with this contamination if there is

  19. Ca rlsbad Field Office

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

    En ergy Ca rlsbad Field Office P. O . Box 3090 Carlsbad , New Mexico 88221 AUG 2 9 2013 Mr. John E. Kieling , Chief Hazardous Waste Bureau New Mexico Environment Department 2905 Rodeo Park Drive East, Building 1 Santa Fe, New Mexico 87505-6303 Subject: Notification of Class 1 Permit Modification to the Waste Isolation Pilot Plant Hazardous Waste Facility Permit Number: NM4890139088-TSDF Dear Mr. Kieling: Enclosed is a Class 1 Permit Modification Notification for the fo ll owing items: * Revise a

  20. Climate Action Champions: San Francisco, CA | Department of Energy

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

    San Francisco, CA Climate Action Champions: San Francisco, CA To meet the challenge of climate change, San Francisco is working with residents, businesses, community organizations, and state and federal agencies to create innovative programs and policies. To meet the challenge of climate change, San Francisco is working with residents, businesses, community organizations, and state and federal agencies to create innovative programs and policies. Climate Action Progress and Plans San Francisco

  1. TOUGH2/EOS7CA

    Energy Science and Technology Software Center (OSTI)

    003504MLTPL00 EOS7CA Version 1.0: TOUGH2 Module for Gas Migration in Shallow Subsurface Porous Media Systems

  2. Survey of lands held for uranium exploration, development, and production in fourteen western states for the six-month period ending June 30, 1982. [AZ, CA, CO, ID, MT, NV, NM, ND, OR, SD, TX, UT, WA, WY

    SciTech Connect (OSTI)

    Not Available

    1982-10-01

    Tables are presented showing the land held (in thousands of acres) for uranium exploration according to: (1) distribution by ownership for 14 western states (state, claim, federally acquired, Indian and fee); (2) distribution by state (1976 to 1982); (3) distribution by land category (1976 to 1982). A graph is presented showing land held by uranium industry from January 1966 to January 1982. Land controlled by counties for each of the 14 states are also tabulated according to land category. (ATT)

  3. Survey of lands held for uranium exploration, development, and production in fourteen western states for the six-month period ending December 31, 1982. [AZ, CA, CO, ID, MT, NV, NM, ND, OR, SD, TX, UT, WA, WY

    SciTech Connect (OSTI)

    Not Available

    1983-04-01

    Tables are presented showing the land held (in thousands of acres) for uranium exploration and development according to: (1) distribution by ownership for 14 western states; (2) distribution by state; distribution by land category. A graph is presented showing land held by uranium industry from January 1966 to January 1983. Land controlled by counties for each of the 14 states are also tabulated according to land category. (ATT)

  4. Results for aliovalent doping of CeBr{sub 3} with Ca{sup 2+}

    SciTech Connect (OSTI)

    Guss, Paul; Foster, Michael E.; Wong, Bryan M.; Patrick Doty, F.; Shah, Kanai; Squillante, Michael R.; Shirwadkar, Urmila; Hawrami, Rastgo; Tower, Joshua; Yuan, Ding

    2014-01-21

    Despite the outstanding scintillation performance characteristics of cerium tribromide (CeBr{sub 3}) and cerium-activated lanthanum tribromide, their commercial availability and application are limited due to the difficulties of growing large, crack-free single crystals from these fragile materials. This investigation employed aliovalent doping to increase crystal strength while maintaining the optical properties of the crystal. One divalent dopant (Ca{sup 2+}) was used as a dopant to strengthen CeBr{sub 3} without negatively impacting scintillation performance. Ingots containing nominal concentrations of 1.9% of the Ca{sup 2+} dopant were grown, i.e., 1.9% of the CeBr{sub 3} molecules were replaced by CaBr{sub 2} molecules, to match our target replacement of 1 out of 54 cerium atoms be replaced by a calcium atom. Precisely the mixture was composed of 2.26 g of CaBr{sub 2} added to 222.14 g of CeBr{sub 3}. Preliminary scintillation measurements are presented for this aliovalently doped scintillator. Ca{sup 2+}-doped CeBr{sub 3} exhibited little or no change in the peak fluorescence emission for 371?nm optical excitation for CeBr{sub 3}. The structural, electronic, and optical properties of CeBr{sub 3} crystals were studied using the density functional theory within the generalized gradient approximation. Calculated lattice parameters are in agreement with the experimental data. The energy band structures and density of states were obtained. The optical properties of CeBr{sub 3}, including the dielectric function, were calculated.

  5. Southern CA Area | Open Energy Information

    Open Energy Info (EERE)

    CA Area Jump to: navigation, search Contents 1 Clean Energy Clusters in the Southern CA Area 1.1 Products and Services in the Southern CA Area 1.2 Research and Development...

  6. California State Historic Preservation Programmatic Agreement | Department

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

    of Energy California State Historic Preservation Programmatic Agreement California State Historic Preservation Programmatic Agreement Fully executed programmatic agreement between DOE, State Energy Office and State Historic Preservation Office. state_historic_preservation_programmatic_agreement_ca.pdf (1.33 MB) More Documents & Publications Arizona State Historic Preservation Programmatic Agreement Delaware State Historic Preservation Programmatic Agreement Florida State Historic

  7. Ca

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

    ... Month selection is based on the least perturbation to the natural groundwater sytem due to well testingpumping, oil field activities, or other unnatural events causing ...

  8. Ca

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

    James Bearzi, Chief Hazardous Waste Bureau New Mexico Environment Department 2905 Rodeo Park Drive East, Building 1 Santa Fe, New Mexico 87505-6303 April 27, 2010 Subject:...

  9. Ca

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

    John Kieling , Acting Bureau Chief Hazardous Waste Bureau New Mexico Environment Department 2905 Rodeo Park Drive East, Bldg. 1 Santa Fe, NM 87505-6303 FEB 2 3 2012 Subject: Transmittal of the Final Audit Report for SRS/CCP Certification Audit A-1 2-04 Dear Mr. Kieling : This letter transmits the Final Audit Report for Carlsbad Field Office Audit A-12-04 of the Savannah River Site Central Chara cterization Project (SRS/CCP) processes performed to characterize and certify waste , as required by

  10. Ca

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

    James Bearzi, Chief Hazardous Waste Bureau New Mexico Environment Department 2905 Rodeo Park Drive East, Building 1 Santa Fe, New Mexico 87505-6303 April 27, 2010 Subject: Notification of Sampling Line Loss, Waste Isolation Pilot Plant Permit Number NM4890139088-TSDF Dear Mr. Bearzi: The purpose of this letter is to transmit notification to the New Mexico Environment Department (NMED) of the loss of a hydrogen and methane monitoring sampling line and the results of the associated evaluation as

  11. SNL/CA Supplement Analysis

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

    ... and can support the United States' deterrence policies. ... Act of 2007. This Act states "the sponsor of any ... regard to the temperature, rate, volume, and duration of ...

  12. State Historical Resources Commission | Open Energy Information

    Open Energy Info (EERE)

    Resources Commission Jump to: navigation, search Name: State Historical Resources Commission Address: 1725 23rd Street, Suite 100 Place: Sacramento, CA Zip: 95816 ParentHolding...

  13. {gamma} spectroscopy around doubly magic {sup 48}Ca by heavy-ion transfer reactions

    SciTech Connect (OSTI)

    Leoni, Silvia

    2012-10-20

    {gamma} spectroscopy of neutron-rich nuclei around {sup 48}Ca is performed by the heavy-ion transfer reaction {sup 48}Ca on {sup 64}Ni at 282 MeV, with the PRISMA-CLARA setup at Legnaro Laboratory. Angular distributions, polarizations and lifetimes analysis probe spin and parities of several excited states, shading lights on their configuration. In the one neutron transfer channels, {sup 49}Ca and {sup 47}Ca, states arising by coupling a single particle to the 3{sup -} phonon of {sup 48}Ca are observed, showing the robustness of nuclear collectivity in rather light systems. The work demonstrates the feasibility of complete in-beam {gamma}-spectroscopy with heavy-ion transfer reactions and provides a method that can be further exploited in the future with heavy targets and radioactive beams.

  14. ,"CA, State Offshore Lease Condensate Proved Reserves, Reserve...

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

    Lease Condensate Proved Reserves, Reserve Changes, and Production" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description"," Of Series","Frequency","Late...

  15. ,"CA, State Offshore Crude Oil plus Lease Condensate Proved Reserves...

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

    Crude Oil plus Lease Condensate Proved Reserves" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description"," Of Series","Frequency","Latest Data for"...

  16. CA, State Offshore Dry Natural Gas Proved Reserves

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

    Acquisitions 0 0 8 0 0 13 2000-2014 Extensions 4 4 3 4 0 0 1977-2014 New Field Discoveries 0 0 0 0 0 0 1977-2014 New Reservoir Discoveries in Old Fields 0 0 0 0 2 2 1977-2014 ...

  17. CA, State Offshore Crude Oil plus Lease Condensate Proved Reserves

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

    Extensions 7 9 12 17 0 0 2009-2014 New Field Discoveries 0 0 0 0 0 0 2009-2014 New Reservoir Discoveries in Old Fields 0 0 0 0 10 10 2009-2014 Estimated Production 14 13 12 13 14 ...

  18. CA, State Offshore Associated-Dissolved Natural Gas Proved Reserves...

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

    Acquisitions 0 0 8 0 0 13 2000-2014 Extensions 2 3 3 4 0 0 1979-2014 New Field Discoveries 0 0 0 0 0 0 1979-2014 New Reservoir Discoveries in Old Fields 0 0 0 0 2 2 1979-2014 ...

  19. CA, State Offshore Lease Condensate Proved Reserves, Reserve Changes, and

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

    Production 3 1 1 2 1979-2014 Adjustments 0 0 0 0 -1 1 2009-2014 Revision Increases 0 0 3 0 1 0 2009-2014 Revision Decreases 0 0 0 2

  20. CA, State Offshore Nonassociated Natural Gas Proved Reserves, Wet After

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

    Lease Separation 4 3 3 1 0 0 1979-2014 Adjustments 0 0 0 -1 0 0 1979-2014 Revision Increases 1 2 2 1 0 0 1979-2014 Revision Decreases 0 3 0 1 1 0 1979-2014 Sales 0 0 1 0 0 0 2000-2014 Acquisitions 0 0 0 0 0 0 2000-2014 Extensions 2 1 0 0 0 0 1979-2014 New Field Discoveries 0 0 0 0 0 0 1979-2014 New Reservoir Discoveries in Old Fields 0 0 0 0 0 0 1979-2014 Estimated Production 2 1 1 1

  1. CA, State Offshore Coalbed Methane Proved Reserves, Reserves Changes, and

    Gasoline and Diesel Fuel Update (EIA)

    2,609 2,447 2,685 1,650 1,574 1,823 1979-2014 Natural Gas Nonassociated, Wet After Lease Separation 607 498 506 269 245 265 1979-2014 Natural Gas Associated-Dissolved, Wet After Lease Separation 2,002 1,949 2,179 1,381 1,329 1,558 1979-2014 Dry Natural Gas 2,469 2,321 2,590 1,550 1,460 1,69 Wet After Lease Separation

    607 498 506 269 245 265 1979-2014 Adjustments 1 -3 -12 58 -20 19 1979-2014 Revision Increases 96 47 116 84 115 112 1979-2014 Revision Decreases 59 84 31 120 73 70 1979-2014

  2. CA, State Offshore Natural Gas Liquids Proved Reserves

    Gasoline and Diesel Fuel Update (EIA)

    164 167 200 198 211 216 2009-2014 Adjustments 2 -2 0 0 0 5 2009-2014 Revision Increases 32 10 24 15 26 11 2009-2014 Revision Decreases 0 1 1 21 9 7 2009-2014 Sales 0 0 5 0 0 44 2009-2014 Acquisitions 0 0 15 0 0 44 2009-2014 Extensions 7 9 12 17 0 0 2009-2014 New Field Discoveries 0 0 0 0 0 0 2009-2014 New Reservoir Discoveries in Old Fields 0 0 0 0 10 10 2009-2014 Estimated Production 14 13 12 13 14 14

    57 66 82 66 75 76 1977-2014 Adjustments 2 0 1 -1 3 2 1977-2014 Revision Increases 3 13 11 1

  3. Laser induced fluorescence spectroscopy of the Ca dimer deposited on helium and mixed helium/xenon clusters

    SciTech Connect (OSTI)

    Gaveau, Marc-André; Pothier, Christophe; Briant, Marc; Mestdagh, Jean-Michel

    2014-12-09

    We study how the laser induced fluorescence spectroscopy of the calcium dimer deposited on pure helium clusters is modified by the addition of xenon atoms. In the wavelength range between 365 and 385 nm, the Ca dimer is excited from its ground state up to two excited electronic states leading to its photodissociation in Ca({sup 1}P)+Ca({sup 1}S): this process is monitored by recording the Ca({sup 1}P) fluorescence at 422.7nm. One of these electronic states of Ca{sub 2} is a diexcited one correlating to the Ca(4s4p{sup 3}P(+Ca(4s3d{sup 3}D), the other one is a repulsive state correlating to the Ca(4s4p1P)+Ca(4s21S) asymptote, accounting for the dissociation of Ca{sub 2} and the observation of the subsequent Ca({sup 1}P) emission. On pure helium clusters, the fluorescence exhibits the calcium atomic resonance line Ca({sup 1}S←{sup 1}P) at 422.7 nm (23652 cm{sup −1}) assigned to ejected calcium, and a narrow red sided band corresponding to calcium that remains solvated on the helium cluster. When adding xenon atoms to the helium clusters, the intensity of these two features decreases and a new spectral band appears on the red side of calcium resonance line; the intensity and the red shift of this component increase along with the xenon quantity deposited on the helium cluster: it is assigned to the emission of Ca({sup 1}P) associated with the small xenon aggregate embedded inside the helium cluster.

  4. Anodic reactions in the Ca/CaCrO/sub 4/ thermal battery

    SciTech Connect (OSTI)

    Guidotti, R.A.; Reinhardt, F.W.

    1985-09-01

    The reaction of Ca with a CaCrO/sub 4/-(LiCl-KCl eutectic) solution at temperatures of 400/sup 0/C to 500/sup 0/C was studied to better understand the nature of the chemical reactions and electrochemical processes that occur in the Ca/CaCrO/sub 4/ thermal battery at the anode during activation and discharge. Limited tests also were conducted with a CaCrO/sub 4/-(CaCl/sub 2/-NaCl-KCl eutectic) solution at 550/sup 0/C. Ca/CaCrO/sub 4/ and CaLi/sub 2//CaCrO/sub 4/ single cells were tested to observe the relative performance differences of Ca and CaLi/sub 2/ anodes. The discharged cells were analyzed by optical microscopy, electron microprobe, Auger electron spectroscopy, and secondary-ion mass spectroscopy. These analytical data were used in conjunction with the results of chemical-reaction experiments to propose a discharge mechanism for the Ca/CaCrO/sub 4/ thermal battery, consistent with experimental observations.

  5. Documnet for Hydrogen State and Regional Workshop, March 30, 2008,

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

    Sacramento, CA | Department of Energy Documnet for Hydrogen State and Regional Workshop, March 30, 2008, Sacramento, CA Documnet for Hydrogen State and Regional Workshop, March 30, 2008, Sacramento, CA Consumer Trends and Hydrogen Messaging cwhite_communications_and_messaging.pdf (229.67 KB) More Documents & Publications IPHE Infrastructure Workshop - Workshop Proceedings, February 25-26, 2010 Sacramento, CA Communicating Hydrogen: Matching Message with Media Vision for Rollout of Fuel

  6. Low-lying dipole response in the stable {sup 40,48}Ca nuclei with the second random-phase approximation

    SciTech Connect (OSTI)

    Gambacurta, D.; Catara, F.

    2011-09-15

    Low-energy dipole excitations are analyzed for the stable isotopes {sup 40}Ca and {sup 48}Ca in the framework of the Skyrme-second random-phase approximation. The corresponding random-phase approximation calculations provide a negligible strength distribution for both nuclei in the energy region from 5 to 10 MeV. The inclusion and the coupling of 2 particle-2 hole configurations in the second random-phase approximation lead to an appreciable dipole response at low energies for the neutron-rich nucleus {sup 48}Ca. The presence of a neutron skin in the nucleus {sup 48}Ca would suggest the interpretation of the low-lying response in terms of a pygmy excitation. The composition of the excitation modes (content of 1 particle-1 hole and 2 particle-2 hole configurations), their transition densities and their collectivity (number and coherence of the different contributions) are analyzed. This analysis indicates that, in general, these excitations cannot be clearly interpreted in terms of oscillations of the neutron skin against the core with the exception of the peak with the largest B(E1) value, which is located at 9.09 MeV. For this peak the neutron transition density dominates and the neutron and proton transition densities oscillate out of phase in the internal part of the nucleus leading to a strong mixing of isoscalar and isovector components. Therefore, this state shows some features usually associated to pygmy resonances.

  7. Microsoft Word - Household Energy Use CA

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

    0 20 40 60 80 100 US PAC CA Site Consumption million Btu $0 $500 $1,000 $1,500 $2,000 $2,500 US PAC CA Expenditures dollars ALL ENERGY average per household (excl. transportation) 0 2,000 4,000 6,000 8,000 10,000 12,000 US PAC CA Site Consumption kilowatthours $0 $250 $500 $750 $1,000 $1,250 $1,500 US PAC CA Expenditures dollars ELECTRICITY ONLY average per household  California households use 62 million Btu of energy per home, 31% less than the U.S. average. The lower than average site

  8. Microsoft Word - Household Energy Use CA

    Gasoline and Diesel Fuel Update (EIA)

    0 20 40 60 80 100 US PAC CA Site Consumption million Btu $0 $500 $1,000 $1,500 $2,000 $2,500 US PAC CA Expenditures dollars ALL ENERGY average per household (excl. transportation) 0 2,000 4,000 6,000 8,000 10,000 12,000 US PAC CA Site Consumption kilowatthours $0 $250 $500 $750 $1,000 $1,250 $1,500 US PAC CA Expenditures dollars ELECTRICITY ONLY average per household  California households use 62 million Btu of energy per home, 31% less than the U.S. average. The lower than average site

  9. DOE - Office of Legacy Management -- Electro Circuits Inc - CA 08

    Office of Legacy Management (LM)

    Electro Circuits Inc - CA 08 FUSRAP Considered Sites Site: Electro Circuits, Inc. (CA.08 ) Eliminated from consideration under FUSRAP Designated Name: Not Designated Alternate Name: None Location: 401 East Green Street , Pasadena , California CA.08-1 Evaluation Year: 1994 CA.08-2 Site Operations: Conducted ultrasonic tests on uranium ingots in the early 1950s. CA.08-3 CA.08-4 Site Disposition: Eliminated - Potential for contamination remote based on limited operations at the site CA.08-2

  10. The high pressure structure and equation of state of 2,6-diamino-3,5-dinitropyrazine-1-oxide (LLM-105) up to 20 GPa: X-ray diffraction measurements and first principles molecular dynamics simulations

    SciTech Connect (OSTI)

    Stavou, Elissaios; Manaa, M. Riad; Zaug, Joseph M.; Kuo, I-Feng W.; Pagoria, Philip F.; Crowhurst, Jonathan C.; Armstrong, Michael R.; Kalkan, Bora

    2015-10-14

    Recent theoretical studies of 2,6-diamino-3,5-dinitropyrazine-1-oxide (C4H4N6O5 Lawrence Livermore Molecule No. 105, LLM-105) report unreacted high pressure equations of state that include several structural phase transitions, between 8 and 50 GPa, while one published experimental study reports equation of state (EOS) data up to a pressure of 6 GPa with no observed transition. Here we report the results of a synchrotron-based X-ray diffraction study and also ambient temperature isobaric-isothermal atomistic molecular dynamics simulations of LLM-105 up to 20 GPa. We find that the ambient pressure phase remains stable up to 20 GPa; there is no indication of a pressure induced phase transition. We do find a prominent decrease in b-axis compressibility starting at approximately 13 GPa and attribute the stiffening to a critical length where inter-sheet distance becomes similar to the intermolecular distance within individual sheets. The ambient temperature isothermal equation of state was determined through refinements of measured X-ray diffraction patterns. The pressure-volume data were fit using various EOS models to yield bulk moduli with corresponding pressure derivatives. As a result, we find very good agreement between the experimental and theoretically derived EOS.

  11. The high pressure structure and equation of state of 2,6-diamino-3,5-dinitropyrazine-1-oxide (LLM-105) up to 20 GPa: X-ray diffraction measurements and first principles molecular dynamics simulations

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

    Stavou, Elissaios; Manaa, M. Riad; Zaug, Joseph M.; Kuo, I-Feng W.; Pagoria, Philip F.; Crowhurst, Jonathan C.; Armstrong, Michael R.; Kalkan, Bora

    2015-10-14

    Recent theoretical studies of 2,6-diamino-3,5-dinitropyrazine-1-oxide (C4H4N6O5 Lawrence Livermore Molecule No. 105, LLM-105) report unreacted high pressure equations of state that include several structural phase transitions, between 8 and 50 GPa, while one published experimental study reports equation of state (EOS) data up to a pressure of 6 GPa with no observed transition. Here we report the results of a synchrotron-based X-ray diffraction study and also ambient temperature isobaric-isothermal atomistic molecular dynamics simulations of LLM-105 up to 20 GPa. We find that the ambient pressure phase remains stable up to 20 GPa; there is no indication of a pressure induced phasemore » transition. We do find a prominent decrease in b-axis compressibility starting at approximately 13 GPa and attribute the stiffening to a critical length where inter-sheet distance becomes similar to the intermolecular distance within individual sheets. The ambient temperature isothermal equation of state was determined through refinements of measured X-ray diffraction patterns. The pressure-volume data were fit using various EOS models to yield bulk moduli with corresponding pressure derivatives. As a result, we find very good agreement between the experimental and theoretically derived EOS.« less

  12. Ca2+-Doped CeBr3 Scintillating Materials

    SciTech Connect (OSTI)

    Guss, Paul; Foster, Michael E.; Wong, Bryan M.; Doty, F. Patrick; Shah, Kanai; Squillante, Michael R.; Shirwadkar, Urmila; Hawrami, Rastgo; Tower, Josh; Yuan, Ding

    2014-01-21

    Despite the outstanding scintillation performance characteristics of cerium tribromide (CeBr3) and cerium-activated lanthanum tribromide, their commercial availability and application are limited due to the difficulties of growing large, crack-free single crystals from these fragile materials. This investigation employed aliovalent doping to increase crystal strength while maintaining the optical properties of the crystal. One divalent dopant (Ca2+) was used as a dopant to strengthen CeBr3 without negatively impacting scintillation performance. Ingots containing nominal concentrations of 1.9% of the Ca2+ dopant were grown. Preliminary scintillation measurements are presented for this aliovalently doped scintillator. Ca2+-doped CeBr3 exhibited little or no change in the peak fluorescence emission for 371 nm optical excitation for CeBr3. The structural, electronic, and optical properties of CeBr3 crystals were studied using the density functional theory within the generalized gradient approximation. The calculated lattice parameters are in good agreement with the experimental data. The energy band structures and density of states were obtained. The optical properties of CeBr3, including the dielectric function, were calculated.

  13. California Climate Exchange CaCX | Open Energy Information

    Open Energy Info (EERE)

    CaCX Jump to: navigation, search Name: California Climate Exchange (CaCX) Place: California Product: Aims to reducte CO2 emission in California. References: California Climate...

  14. EA-1798: Abengoa Solar's Mojave Solar Project near Barstow, CA...

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

    8: Abengoa Solar's Mojave Solar Project near Barstow, CA EA-1798: Abengoa Solar's Mojave Solar Project near Barstow, CA July 1, 2011 EA-1798: Final Environmental Assessment Loan ...

  15. ERSUG Meeting: January 28-29, 1997 (Berkeley, CA)

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

    ERSUG Meeting: January 28-29, 1997 (Berkeley, CA) Dates January 28-29, 1997 Location Lawerence Berkeley Nantional Laboratory Perserverence Hall 1 Cyclotron Road Berkeley, CA 94720...

  16. ERSUG Meeting: June 13 - 14, 1995 (Livermore, CA)

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

    ERSUG Meeting: June 13 - 14, 1995 (Livermore, CA) Dates ERSUG Meeting: June 13 & 14, 1995 Location Lawrence Livermore National Laboratory Livermore, CA Minutes Summary of ERSUG ...

  17. San Diego, CA Liquefied Natural Gas Exports to Mexico (Dollars...

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

    San Diego, CA Liquefied Natural Gas Exports to Mexico (Dollars per Thousand Cubic Feet) San Diego, CA Liquefied Natural Gas Exports to Mexico (Dollars per Thousand Cubic Feet) ...

  18. Growth and optical properties of partially transparent Eu doped CaF{sub 2} ceramic

    SciTech Connect (OSTI)

    Ghosh, Manoranjan Sen, Shashwati Pitale, S. S. Goutam, U. K. Shinde, Seema Patra, G. D. Gadkari, S. C.

    2014-04-24

    Partially transparent ceramic of 2 at.% Eu doped CaF{sub 2} have been grown preferentially towards [111] direction. For this purpose, Eu doped CaF{sub 2} nanoparticles (size?12 nm) obtained by a low temperature solution growth method has been pressed at 1000C under vacuum. The preferentially grown ceramic shows 15% transparency within the visible range of spectrum. As confirmed by the X-ray diffraction result, the hot pressed ceramic exhibits reduced lattice volume than the nanopowder. It indicates Eu{sup 3+} as the dominant substituting ions at the Ca{sup 2+} sites of CaF{sub 2} lattice in the hot pressed ceramic material. It is corroborated by the photoluminescence results of hot pressed ceramic which shows strong red emission corresponding to Eu{sup 3+} sites. However, photoluminescence of nanopowder exhibits intense peak in the blue region of the spectrum which is characteristics of Eu2+ sites.

  19. Characterization of cathodic corrosion products in the Ca/CaCrO/sub 4/ thermal battery

    SciTech Connect (OSTI)

    Guidotti, R.A.; Reinhardt, F.W.; Venturini, E.L.; Rogers, J.W. Jr.; Cathey, W.N.

    1985-05-01

    Using thermal analysis techniques, we investigated the corrosion process resulting from the reaction of iron, nickel, and stainless steel (used as current collectors in Ca/CaCrO/sub 4/ thermal batteries) with CaCrO/sub 4/ dissolved in LiCl-KCl eutectic. The reaction product for iron was synthesized in bulk external to the battery and was characterized by chemical analysis, X-ray diffraction, Moessbauer spectroscopy, X-ray photoelectron spectroscopy, static magnetization, and electrical conductivity. This characterization provides a better understanding of the cathodic corrosion processes that occur in the Ca/CaCrO/sub 4/ thermal battery, and how the properties of the reaction layer at the catholyte-current collector interface influence battery performance.

  20. DOE CYBER SECURITY EBK: CORE COMPETENCY TRAINING REQUIREMENTS: CA

    Broader source: Energy.gov [DOE]

    DOE CYBER SECURITY EBK: CORE COMPETENCY TRAINING REQUIREMENTS. Key Cyber Security Role: Certification Agent (CA)

  1. Materials compatibility during the chlorination of molten CaCl/sub 2/. CaO salts. [CaCl/sub 2/. CaO salt

    SciTech Connect (OSTI)

    Rense, C.E.C.; Fife, K.W.; Bowersox, D.F.; Ferran, M.D.

    1987-01-01

    As part of our effort to develop a semicontinuous PuO/sub 2/ reduction process, we are investigating promising materials for containing a 900/sup 0/C molten CaCl/sub 2/ . CaO chlorination reaction. We want the material to contain this reaction and to be reusable. We tested candidate materials in a simulated salt (no plutonium) using anhydrous HCl as the chlorinating agent. Data are presented on the performance of 36 metals and alloys, 9 ceramics, and 3 coatings.

  2. High-Resolution Structure of the Photosynthetic Mn4Ca Catalyst from X-ray Spectroscopy

    SciTech Connect (OSTI)

    Yachandra, Vittal; Yano, Junko; Kern, Jan; Pushkar, Yulia; Sauer, Kenneth; Glatzel, Pieter; Bergmann, Uwe; Messinger, Johannes; Zouni, Athina; Yachandra, Vittal K.

    2007-08-01

    The application of high-resolution X-ray spectroscopy methods to study the photosynthetic water oxidizing complex, which contains a unique hetero-nuclear catalytic Mn4Ca cluster, are described. Issues of X-ray damage especially at the metal sites in the Mn4Ca cluster are discussed. The structure of the Mn4Ca catalyst at high-resolution which has so far eluded attempts of determination by X-ray diffraction, EXAFS and other spectroscopic techniques has been addressed using polarized EXAFS techniques applied to oriented PS II membrane preparations and PS II single crystals. A review of how the resolution of traditional EXAFS techniques can be improved, using methods such as range-extended EXAFS is presented, and the changes that occur in the structure of the cluster as it advances through the catalytic cycle are described. X-ray absorption and emission techniques (XANES and K? emission) have been used earlier to determine the oxidation states of the Mn4Ca cluster, and in this report we review the use of X-ray resonant Raman spectroscopy to understand the electronic structure of the Mn4Ca cluster as it cycles through the intermediate S-states.

  3. secretary of state | National Nuclear Security Administration

    National Nuclear Security Administration (NNSA)

    state

  4. Microsoft Word - Cd-CA.doc

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

    The First Cadmium Enzyme - Carbonic Anhydrase 2 from the marine diatom Thalassiosira weissflogii Todd W. Lane 1 , Mak A. Saito 2 , Graham N. George 3 , Ingrid J. Pickering 3 , Roger C. Prince 4 and François M.M. Morel 5 1 Biosystems Research Department, Sandia National Labs, Livermore, CA 2 Marine Chemistry and Geochemistry Department, Woods Hole Oceanographic Institution, Woods Hole, MA 3 Department of Geological Sciences, University of Saskatchewan, Saskatoon, Canada 4 ExxonMobil Research

  5. File:Ca1.pdf | Open Energy Information

    Open Energy Info (EERE)

    Ca1.pdf Jump to: navigation, search File File history File usage Metadata File:Ca1.pdf Size of this preview: 463 599 pixels. Other resolution: 464 600 pixels. Go to page 1 2...

  6. Capacity Needs Diagnostics for Renewable Energies (CaDRE) | Open...

    Open Energy Info (EERE)

    here: Handbook Toolbox Four Levels of CaDRE CaDRE is based on the idea that a governing body can successfully develop in the renewable energy sector when the following...

  7. Metropolitan Water District of S CA | Open Energy Information

    Open Energy Info (EERE)

    Metropolitan Water District of S CA Jump to: navigation, search Name: Metropolitan Water District of S CA Place: California Phone Number: (213) 217-6000 Website: www.mwdh2o.com...

  8. Effects of porosity on leaching of Ca from hardened ordinary...

    Office of Scientific and Technical Information (OSTI)

    Effects of porosity on leaching of Ca from hardened ordinary Portland cement paste Citation Details In-Document Search Title: Effects of porosity on leaching of Ca from hardened ...

  9. ERSUG Meeting: January 8-9, 1996 (Berkeley, CA)

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

    ERSUG Meeting: January 8-9, 1996 (Berkeley, CA) Dates January 8-9, 1996 Location Lawrence Berkeley National Laboratory 1 Cyclotron Road Berkeley, CA 94720 Attendee List Minutes...

  10. EIS-0455: Genesis Solar Energy Project in Riverside County, CA...

    Energy Savers [EERE]

    5: Genesis Solar Energy Project in Riverside County, CA EIS-0455: Genesis Solar Energy Project in Riverside County, CA December 17, 2010 EIS-0455: Notice of Adoption of an ...

  11. Financial Statement: IG-FS-CA-06-04

    Broader source: Energy.gov [DOE]

    Review of Actions to Correct Financial Control and Reporting Weaknesses; Audit Report No: OAS-FS/CA-06-04

  12. Origin State>> CA CA ID ID IL KY NJ NM NY NY NV OH OH OH SC

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

    Mixed Waste Treatment Project Argonne National Laboratory Paducah Gaseous Diffusion Plant Princeton Plasma Physics Laboratory Sandia National Laboratory Brookhaven National Laboratory West Valley Demonstration Project National Security Technologies, Inc. Mound Closure Project Portsmouth Gaseous Diffusion Plant Fernald Closure Project Savannah River Site BWXT Y-12 Plant Duratek Nuclear Fuels UT-Battelle Bechtel Jacobs Permafix M&EC EnergX (formerly Foster Wheeler) Pantex Plant SOUTHERN I-15,

  13. Origin State>> CA CA ID ID IL KY NJ NM NY NY NV OH OH SC TN

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

    SC TN TN TN TN TN TN TN TX Total Shipments by Route Lawrence Livermore National Laboratory Boeing/Rocketdyne Idaho National Labaratoy Advanced Mixed Waste Treatment Project Argonne National Laboratory Paducah Gaseous Diffusion Plant Princeton Plasma Physics Laboratory Sandia National Laboratory Brookhaven National Laboratory West Valley Demonstration Project National Security Technologies, Inc. Portsmouth Gaseous Diffusion Plant Fernald Closure Project Savannah River Site BWXT Y-12 Plant Duratek

  14. CA Mr. Andrew Wallo, III, NE-23

    Office of Legacy Management (LM)

    ?9OQ, 95.5 L'E&nt Plaza, SW.. W.ashin@.m, D.C. 20024.2174, Tekphone: (202) 488AQOO 7117-03.B7.cdy.43 23 September 1987 CA Mr. Andrew Wallo, III, NE-23 Division of Facility & Site Decommissioning Projects U.S. Oepartment of Energy Germantown, Maryland 20545 Dear Mr. Wallo: ELIMINATION RECOMMENDATION -- COLLEGES AND UNIVERSITIES zh/ ! o-01 lM!tl5 ML)!o-05 PI 77!0> The attached elimination recoannendation was prepared in accordance . -1 rlL.0~ with your suggestion during our meeting on

  15. CA Mr. Wayne Klassing Klassing Hardbrake Company

    Office of Legacy Management (LM)

    s/L / ' CA _ _.- Mr. Wayne Klassing Klassing Hardbrake Company P.O. Box 860 Joliet, Illinois 60434 E- 3 --- ,"".Y.- 1 , -4 v / 1 /89 ., ._ I.. Dear Mr. Klassing: The Department of Energy (DOE) has completed its review of the preliminary radiological data from the May 1989 survey of your facility in Joliet, Illinois, which is the site of the former W. E. Pratt Manufacturing Company. We are pleased to inform you that the survey has verified that the radiological condition of your

  16. Fusion of {sup 48}Ca+{sup 48}Ca Far Below the Barrier

    SciTech Connect (OSTI)

    Scarlassara, F.; Montagnoli, G.; Mason, P.; Stefanini, A. M.; Silvestri, R.; Corradi, L.; Fioretto, E.; Guiot, B.; Courtin, S.; Haas, F.; Lebhertz, D.; Szilner, S.

    2009-08-26

    In recent years, a puzzling pattern has been observed in fusion cross sections well below the Coulomb barrier, characterized as a departure from the exponential-like behavior predicted by standard coupled-channels models, known as fusion hindrance. We report on recent fusion measurements performed at the Laboratori Nazionali di Legnaro, in particular the {sup 48}Ca+{sup 48}Ca reaction down to the level of 0.6 {mu}b. Unlike most recent results in this field, we do not observe the typical divergent behavior of the logarithmic derivative; but rather a sort of saturation, albeit at a larger value than predicted with a standard nucleus-nucleus potential.

  17. The Equation of State of LLM-105 (2,6-diamino-3,5-dinitropyrazine...

    Office of Scientific and Technical Information (OSTI)

    Laboratory (LLNL), Livermore, CA Sponsoring Org: USDOE Country of Publication: United States Language: English Subject: 37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY

  18. Entity State Ownership Residential Commercial Industrial Transportation

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

    Revenue for Delivery Service Providers (Data from form EIA-861 schedule 4C) Entity State Ownership Residential Commercial Industrial Transportation Total Pacific Gas & Electric Co CA Investor Owned 58,038 366,593 243,892 4,112 672,635 San Diego Gas & Electric Co CA Investor Owned 596 91,379 113,352 0 205,326 Southern California Edison Co CA Investor Owned 4,502 517,154 90,847 0 612,503 Connecticut Light & Power Co CT Investor Owned 351,392 489,607 96,889 4,242 942,130 United

  19. STATE OF NEVADA

    Office of Legacy Management (LM)

    ' , STATE OF NEVADA / j DEPARTME T'- OF_CONSERVATION AND NATURAL I;).c-.)}"",.~ Carson City View of spring discha rge in Hot Creek Ca nyon. WATER RESOU RCES - RECON NAISSANCE SERI ES REPORT 38 ... By F. Eugene Rush Geolog ist * . , and . _ . . , J * _. * * * .~ ~ u.a lieir rFt 0 M T H I S 0 f f J C .£ ~ - _ . PL E A S E WATER-RESOURCES APPRAISAL OF LITTLE FISH LAKE, HOT CREEK, EVJu6Ho.. \ . Prepared cooperatively by the Geological Survey, U.S. Department of the Interior MAY 1966

  20. NRELs e-Ca Test

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

    NREL's e ---Ca T est Energy Innova5on Portal Webinar Arrelaine A . Dameron March 2 7, 2 012 2 Characteriza5on o f W ater P ermea5on B arriers Barrier Ambient E nvironment Sensi*ve C omponents Vapor a dsorbs a nd dissolves i nto barrier Vapor d iffuses Vapor d esorbs/ outgasses * Barrier m anufacturers need a c haracteriza5on method t hat i s: - Reproducible - Highly s ensi*ve - Easy t o u se - Scalable 3 1 F ood P ackaging 0.1 L CDs 0.01 T FTs 10 ---3 C dTe / Thin F ilm 10 ---4 C IGS 10 ---5 10

  1. DOE - Office of Legacy Management -- Stauffer-Temescal Co - CA 12

    Office of Legacy Management (LM)

    Stauffer-Temescal Co - CA 12 FUSRAP Considered Sites Site: STAUFFER-TEMESCAL CO. (CA.12) Eliminated from consideration under FUSRAP Designated Name: Not Designated Alternate Name: Stauffer Metals Company Stauffer-Temescal Co. CA.12-1 CA.12-2 CA.12-3 Location: 1201 South 47th Street , Richmond , California CA.12-1 CA.12-4 Evaluation Year: 1990 CA.12-5 CA.12-6 Site Operations: Conducted tests to determine the capabilities of electron beam melting on the purification of uranium. CA.12-1 CA.12-3

  2. Origin State Destination State

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

    State 2001 2002 2003 2004 2005 2006 2007 2008 2009 2001-2009 2008-2009 Alabama Alabama W W W W W W W W W W W Alabama Georgia W W W W W W W W W W W Alabama Illinois - - - - - W W...

  3. Oestrogen directly inhibits the cardiovascular L-type Ca{sup 2+} channel Ca{sub v}1.2

    SciTech Connect (OSTI)

    Ullrich, Nina D. . E-mail: ullrich@pyl.unibe.ch; Koschak, Alexandra; MacLeod, Kenneth T.

    2007-09-21

    Oestrogen can modify the contractile function of vascular smooth muscle and cardiomyocytes. The negative inotropic actions of oestrogen on the heart and coronary vasculature appear to be mediated by L-type Ca{sup 2+} channel (Ca{sub v}1.2) inhibition, but the underlying mechanisms remain elusive. We tested the hypothesis that oestrogen directly inhibits the cardiovascular L-type Ca{sup 2+} current, I {sub CaL}. The effect of oestrogen on I {sub CaL} was measured in Ca{sub v}1.2-transfected HEK-293 cells using the whole-cell patch-clamp technique. The current revealed typical activation and inactivation profiles of nifedipine- and cadmium-sensitive I {sub CaL}. Oestrogen (50 {mu}M) rapidly reduced I {sub CaL} by 50% and shifted voltage-dependent activation and availability to more negative potentials. Furthermore, oestrogen blocked the Ca{sup 2+} channel in a rate-dependent way, exhibiting higher efficiency of block at higher stimulation frequencies. Our data suggest that oestrogen inhibits I {sub CaL} through direct interaction of the steroid with the channel protein.

  4. Solid-state syntheses and single-crystal characterizations of three tetravalent thorium and uranium silicates

    SciTech Connect (OSTI)

    Jin, Geng Bang Soderholm, L.

    2015-01-15

    Colorless crystals of ThSiO{sub 4} (huttonite) (1) and (Ca{sub 0.5}Na{sub 0.5}){sub 2}NaThSi{sub 8}O{sub 20} (2) have been synthesized by the solid-state reactions of ThO{sub 2}, CaSiO{sub 3}, and Na{sub 2}WO{sub 4} at 1073 K. Green crystals of (Ca{sub 0.5}Na{sub 0.5}){sub 2}NaUSi{sub 8}O{sub 20} (3) have been synthesized by the solid-state reactions of UO{sub 2}, CaSiO{sub 3}, and Na{sub 2}WO{sub 4} at 1003 K. All three compounds have been characterized by single-crystal X-ray diffraction. Compound 1 adopts a monazite-type three-dimensional condensed structure, which is built from edge- and corner-shared ThO{sub 9} polyhedra and SiO{sub 4} tetrahedra. Compounds 2 and 3 are isostructural and they crystallize in a steacyite-type structure. The structure consists of discrete pseudocubic [Si{sub 8}O{sub 20}]{sup 8−} polyanions, which are connected by An{sup 4+} cations into a three-dimensional framework. Each An atom coordinates to eight monodentate [Si{sub 8}O{sub 20}]{sup 8−} moieties in a square antiprismatic geometry. Na{sup +} and Ca{sup 2+} ions reside in the void within the framework. Raman spectra of 1, 2, and 3 were collected on single crystal samples. 1 displays more complex vibrational bands than thorite. Raman spectra of 2 and 3 are analogous with most of vibrational bands located at almost the same regions. - Graphical abstract: A Raman spectrum and crystal structures of (Ca{sub 0.5}Na{sub 0.5}){sub 2}NaAnSi{sub 8}O{sub 20} (An=Th, U), which contain pseudocubic [Si{sub 8}O{sub 20}]{sup 8−} polyanions and eight-coordinate An{sup 4+} cations. - Highlights: • Single crystal growth of three tetravalent actinide silicates from melts. • Single-crystal structures and Raman spectra of (Ca{sub 0.5}Na{sub 0.5}){sub 2}NaAnSi{sub 8}O{sub 20} (An=Th, U). • First report of Raman spectrum of huttonite on single crystal samples.

  5. Metallicity of Ca2Cu6P5 with single and double copper-pnictide layers

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

    Li, Li; Parker, David; Chi, Miaofang; Tsoi, Georgiy M.; Vohra, Yogesh K.; Sefat, Athena S.

    2016-02-16

    Here, we report thermodynamic and transport properties, and also theoretical calculations, for Cu-based compound Ca2Cu6P5 and compare with CaCu2-dP2. Both materials have layers of edge-sharing copper pnictide tetrahedral CuP4, similar to Fe–As and Fe–Se layers (with FeAs4, FeSe4) in the iron-based superconductors. Despite the presence of this similar transition-metal pnictide layer, we find that both Ca2Cu6P5 and CaCu2-δP2 have temperature-independent magnetic susceptibility and show metallic behavior with no evidence of either magnetic ordering or superconductivity down to 1.8 K CaCu2-δP2 is slightly off-stoichiometric, with δ = 0.14. Theoretical calculations suggest that unlike Fe 3d-based magnetic materials with a large densitymore » of states (DOS) at the Fermi surface, Cu have comparatively low DOS, with the majority of the 3d spectral weight located well below Fermi level. The room-temperature resistivity value of Ca2Cu6P5 is only 9 μΩ-cm, due to a substantial plasma frequency and an inferred electron-phonon coupling λ of 0.073 (significantly smaller than that of metallic Cu). Also, microscopy result shows that Cu–Cu distance along the c-axis within the double layers can be very short (2.5 Å), even shorter than metallic elemental copper bond (2.56 Å). The value of dρ/dT for CaCu2-δP2 at 300 K is approximately three times larger than in Ca2Cu6P5, which suggests the likelihood of stronger electron-phonon coupling. This study shows that the details of Cu-P layers and bonding are important for their transport characteristics. In addition, it emphasizes the remarkable character of the DOS of ‘122’ iron-based materials, despite much structural similarities.« less

  6. Evaluation of HFC-245ca for commercial use in low pressure chillers. Final report, Volume I

    SciTech Connect (OSTI)

    Keuper, E.F.

    1996-03-01

    Federal regulations banned the production of CFC-11 on January 1, 1996. HCFC-123, the only commercial alternative, will be limited to service applications after January 1, 2020 and will be eliminated from production on January 1, 2030. HFC-245ca has been identified as a potential replacement for CFC-11 in retrofit applications and for HCFC-123 in new chillers, but the marginal flammability of HFC-245ca is a major obstacle to its commercial use as a refrigerant in the United States. This report assesses the commercial viability of HFC-245ca based on its experimental performance in a direct drive low pressure centrifugal chiller exclusive of its flammability characteristics. Three different impeller diameters were tested in the chiller, with all impellers having identical discharge blade angles. Experimental work included tests in a 200 ton 3 stage direct drive chiller with 3 impeller sets properly sized for each of three refrigerants, CFC-11, HCFC-123, and HFC-245ca. The commercial viability assessment focused on both retrofit and new product performance and cost.

  7. 06-14-2010 CA-B-10-0081

    National Nuclear Security Administration (NNSA)

    CA-B-10-0081 Sandia National LaboratoriesCalifornia proposes to continue development and ... Site Office Neutron Scatter Camera Measurements Sandia National Laboratories - California

  8. RAPID/Roadmap/15-CA-a | Open Energy Information

    Open Energy Info (EERE)

    BETA About Bulk Transmission Geothermal Hydropower Solar Tools Contribute Contact Us Air Quality Permit - Authority to Construct (15-CA-a) A developer seeking to construct,...

  9. RAPID/Roadmap/15-CA-b | Open Energy Information

    Open Energy Info (EERE)

    BETA About Bulk Transmission Geothermal Hydropower Solar Tools Contribute Contact Us Air Quality Permit - Operating Permit (15-CA-b) A developer operating a facility that...

  10. California Fuel Cell Partnership CaFCP | Open Energy Information

    Open Energy Info (EERE)

    fuel cell vehicles under real driving conditions and to assist in the development of a hydrogen infrastructure. References: California Fuel Cell Partnership (CaFCP)1 This...

  11. RAPID/Roadmap/7-CA-f | Open Energy Information

    Open Energy Info (EERE)

    RAPIDRoadmap7-CA-f < RAPID | Roadmap Jump to: navigation, search RAPID Regulatory and Permitting Information Desktop Toolkit BETA About Bulk Transmission Geothermal Hydropower...

  12. RAPID/Roadmap/18-CA-b | Open Energy Information

    Open Energy Info (EERE)

    RAPIDRoadmap18-CA-b < RAPID | Roadmap Jump to: navigation, search RAPID Regulatory and Permitting Information Desktop Toolkit BETA About Bulk Transmission Geothermal...

  13. RAPID/Roadmap/6-CA-b | Open Energy Information

    Open Energy Info (EERE)

    CA-b < RAPID | Roadmap Jump to: navigation, search RAPID Regulatory and Permitting Information Desktop Toolkit BETA About Bulk Transmission Geothermal Hydropower Solar Tools...

  14. RAPID/Roadmap/13-CA-c | Open Energy Information

    Open Energy Info (EERE)

    RAPIDRoadmap13-CA-c < RAPID | Roadmap Jump to: navigation, search RAPID Regulatory and Permitting Information Desktop Toolkit BETA About Bulk Transmission Geothermal...

  15. RAPID/Roadmap/14-CA-d | Open Energy Information

    Open Energy Info (EERE)

    RAPIDRoadmap14-CA-d < RAPID | Roadmap Jump to: navigation, search RAPID Regulatory and Permitting Information Desktop Toolkit BETA About Bulk Transmission Geothermal...

  16. RAPID/Roadmap/13-CA-b | Open Energy Information

    Open Energy Info (EERE)

    Help Apps Datasets Community Login | Sign Up Search Page Edit with form History RAPIDRoadmap13-CA-b < RAPID | Roadmap Jump to: navigation, search RAPID Regulatory and...

  17. RAPID/Roadmap/3-CA-b | Open Energy Information

    Open Energy Info (EERE)

    RAPIDRoadmap3-CA-b < RAPID | Roadmap Jump to: navigation, search RAPID Regulatory and Permitting Information Desktop Toolkit BETA About Bulk Transmission Geothermal Hydropower...

  18. RAPID/Roadmap/6-CA-a | Open Energy Information

    Open Energy Info (EERE)

    CA-a < RAPID | Roadmap Jump to: navigation, search RAPID Regulatory and Permitting Information Desktop Toolkit BETA About Bulk Transmission Geothermal Hydropower Solar Tools...

  19. RAPID/Roadmap/8-CA-c | Open Energy Information

    Open Energy Info (EERE)

    CA-c < RAPID | Roadmap Jump to: navigation, search RAPID Regulatory and Permitting Information Desktop Toolkit BETA About Bulk Transmission Geothermal Hydropower Solar Tools...

  20. RAPID/Roadmap/11-CA-a | Open Energy Information

    Open Energy Info (EERE)

    RAPIDRoadmap11-CA-a < RAPID | Roadmap Jump to: navigation, search RAPID Regulatory and Permitting Information Desktop Toolkit BETA About Bulk Transmission Geothermal...

  1. RAPID/Roadmap/14-CA-c | Open Energy Information

    Open Energy Info (EERE)

    Geothermal Hydropower Solar Tools Contribute Contact Us Underground Injection Control Permit (14-CA-c) The injection of spent (cooled) geothermal fluids and in some cases...

  2. RAPID/Roadmap/19-CA-a | Open Energy Information

    Open Energy Info (EERE)

    BETA About Bulk Transmission Geothermal Hydropower Solar Tools Contribute Contact Us Water Access and Water Rights (19-CA-a) California has a hybrid water law system, containing...

  3. EIS-0439: Rice Solar Energy Project in Riverside County, CA ...

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

    March 29, 2010 EIS-0439: Notice of Intent to Prepare an Environmental Impact Statement Proposed Construction and Operation of the Rice Solar Energy Project, Riverside County, CA ...

  4. RAPID/Roadmap/12-CA-a | Open Energy Information

    Open Energy Info (EERE)

    Bulk Transmission Geothermal Hydropower Solar Tools Contribute Contact Us California Fish and Game Process (12-CA-a) California protects certain species and habitat beyond the...

  5. File:INL-geothermal-ca.pdf | Open Energy Information

    Open Energy Info (EERE)

    ca.pdf Jump to: navigation, search File File history File usage California Geothermal Resources Size of this preview: 439 599 pixels. Other resolution: 439 600 pixels. Full...

  6. RAPID/Roadmap/1-CA-a | Open Energy Information

    Open Energy Info (EERE)

    RAPID Regulatory and Permitting Information Desktop Toolkit BETA About Bulk Transmission Geothermal Hydropower Solar Tools Contribute Contact Us Land Use Planning (1-CA-a) Land...

  7. National Radon Database. Volume 4. The EPA/state residential radon surveys: CA, HI, ID, LA, NE, NV, NC, OK, SC, the Navajo Nation, and the Billings, MT IHS Area 1989-1990 (5 1/4 inch, 1. 2mb) (for microcomputers). Data file

    SciTech Connect (OSTI)

    Not Available

    1990-01-01

    The National Radon Database (NRDB) was developed by the United States Environmental Protection Agency (USEPA) to distribute information in two recent radon surveys: the EPA/State Residential Radon Surveys and the National Residential Radon Survey. The National Residential Radon Surveys collected annual average radon measurements on all levels of approximately 5,700 homes nationwide. Information collected during survey includes a detailed questionnaire on house characteristics, as well as radon measurements. The radon survey data for Volume 6 is contained on two diskettes. The data diskettes are accompanied by comprehensive documentation on the design and implementation of the survey, the development and use of sampling weights, a summary of survey results, and information concerning the household questionnaire.

  8. National Radon Database. Volume 4. The EPA/state residential radon survey: CA, HI, ID, LA, NE, NV, NC, OK, SC, the Navajo Nation, and the Billings, MT IHS Area 1989-1990 (3 1/2 inch, 1. 44mb) (for microcomputers). Data file

    SciTech Connect (OSTI)

    Not Available

    1990-01-01

    The National Radon Database (NRDB) was developed by the United States Environmental Protection Agency (USEPA) to distribute information in two recent radon surveys: the EPA/State Residential Radon Surveys and the National Residential Radon Survey. The National Residential Radon Surveys collected annual average radon measurements on all levels of approximately 5,700 homes nationwide. Information collected during survey includes a detailed questionnaire on house characteristics, as well as radon measurements. The radon survey data for Volume 6 is contained on two diskettes. The data diskettes are accompanied by comprehensive documentation on the design and implementation of the survey, the development and use of sampling weights, a summary of survey results, and information concerning the household questionnaire.

  9. Conformational Changes in Guanylate Cyclase-Activating Protein 1 Induced by Ca2+ and N-Terminal Fatty Acid Acylation

    SciTech Connect (OSTI)

    Orban, T.; Bereta, G; Miyagi, M; Wang, B; Chance, M; Sousa, M; Palczewski, K

    2010-01-01

    Neuronal Ca{sup 2+} sensors (NCS) are high-affinity Ca{sup 2+}-binding proteins critical for regulating a vast range of physiological processes. Guanylate cyclase-activating proteins (GCAPs) are members of the NCS family responsible for activating retinal guanylate cyclases (GCs) at low Ca{sup 2+} concentrations, triggering synthesis of cGMP and recovery of photoreceptor cells to the dark-adapted state. Here we use amide hydrogen-deuterium exchange and radiolytic labeling, and molecular dynamics simulations to study conformational changes induced by Ca{sup 2+} and modulated by the N-terminal myristoyl group. Our data on the conformational dynamics of GCAP1 in solution suggest that Ca{sup 2+} stabilizes the protein but induces relatively small changes in the domain structure; however, loss of Ca{sup 2+} mediates a significant global relaxation and movement of N- and C-terminal domains. This model and the previously described calcium-myristoyl switch proposed for recoverin indicate significant diversity in conformational changes among these highly homologous NCS proteins with distinct functions.

  10. Progress in the material development of LiCaAlF sub 6 :Cr sup 3+ laser crystals

    SciTech Connect (OSTI)

    Michelle D. Shinn.; Chase, L.L.; Caird, J.A.; Payne, S.A.; Atherton, L.J.; Kway, W.L.

    1990-03-01

    High Cr{sup 3+} doping levels, up to 8 mole percent, and low losses have been obtained with the tunable solid-state laser material LiCaAlF{sub 6}:Cr{sup 3+} (Cr:LiCAF). Measurements and calculations show that high pumping and extraction efficiencies are possible with the improved material. 13 refs., 4 figs., 1 tab.

  11. Removal of Ca2+ from the Oxygen-Evolving Complex in Photosystem II Has Minimal Effect on the Mn4O5 Core Structure: A Polarized Mn X-ray Absorption Spectroscopy Study

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

    Lohmiller, Thomas; Shelby, Megan L.; Long, Xi; Yachandra, Vittal K.; Yano, Junko

    2015-05-19

    We studied Ca2+ -depleted and Ca2+ -reconstituted spinach photosystem II using polarized X-ray absorption spectroscopy of oriented PS II preparations to investigate the structural and functional role of the Ca2+ ion in the Mn4O5Ca cluster of the oxygen-evolving complex (OEC). Samples were prepared by low pH/citrate treatment as one-dimensionally ordered membrane layers and poised in the Ca2+ -depleted S1 (S1') and S2 (S2') states, the S2'YZ• state, at which point the catalytic cycle of water oxidation is inhibited, and the Ca2+ -reconstituted S1 state. Polarized Mn K-edge XANES and EXAFS spectra exhibit pronounced dichroism. Polarized EXAFS data of all statesmore » of Ca2+ -depleted PS II investigated show only minor changes in distances and orientations of the Mn-Mn vectors compared to the Ca2+ -containing OEC, which may be attributed to some loss of rigidity of the core structure. Thus, removal of the Ca2+ ion does not lead to fundamental distortion or rearrangement of the tetranuclear Mn cluster, which indicates that the Ca2+ ion in the OEC is not critical for structural maintenance of the cluster, at least in the S1 and S2 states, but fulfills a crucial catalytic function in the mechanism of the water oxidation reaction. On the basis of this structural information, reasons for the inhibitory effect of Ca2+ removal are discussed, attributing to the Ca2+ ion a fundamental role in organizing the surrounding (substrate) water framework and in proton-coupled electron transfer to YZ• (D1-Tyr161).« less

  12. Persistent Fe moments in the normal state of the pressure-induced...

    Office of Scientific and Technical Information (OSTI)

    the normal state of the pressure-induced superconductor Ca0.67Sr0.33Fe2As2 Citation Details In-Document Search Title: Persistent Fe moments in the normal state of the ...

  13. Low-lying dipole response in the stable {sup 40,48}Ca nuclei within the second random-phase approximation

    SciTech Connect (OSTI)

    Gambacurta, D.; Grasso, M.; Catara, F.

    2012-10-20

    The low-lying dipole strength distributions of {sup 40}CaCa and {sup 48}Ca, in the energy region between 5 and 10 MeV, are studied within the second random phase approximation (RPA) with Skyrme interaction. Standard RPA models do not usually predict any presence of strength in this energy region, while experimentally a significant amount of strength is found. The inclusion of the 2 particle -2 hole configurations allows to obtain a description in a rather good agreement with the experimental data. The properties of the most collective state are analyzed in terms of its 1 particle -1 hole nature and its transition densities.

  14. DOE - Office of Legacy Management -- General Electric Co - San Jose - CA 13

    Office of Legacy Management (LM)

    San Jose - CA 13 FUSRAP Considered Sites Site: General Electric Co. - San Jose (CA.13 ) Eliminated from consideration under FUSRAP Designated Name: Not Designated Alternate Name: None Location: San Jose , California CA.13-1 Evaluation Year: 1995 CA.13-2 Site Operations: Fabricated uranium metal. CA.13-1 Site Disposition: Eliminated - No Authority - NRC licensed CA.13-2 Radioactive Materials Handled: Yes Primary Radioactive Materials Handled: Uranium CA.13-1 Radiological Survey(s): No Site

  15. DOE - Office of Legacy Management -- Santa Susana Field Laboratory - CA 09

    Office of Legacy Management (LM)

    Santa Susana Field Laboratory - CA 09 FUSRAP Considered Sites Site: SANTA SUSANA FIELD LABORATORY (CA.09 ) Eliminated from consideration under FUSRAP - Remediation and certification complete Designated Name: Not Designated Alternate Name: Rockwell International, Energy Systems Group Atomics International CA.09-1 CA.09-2 Location: Chatsworth , California CA.09-3 Evaluation Year: 1985 CA.09-3 Site Operations: Conducted sodium reactor, irradiation and fuel burn up experimentation. CA.09-3 Site

  16. Microdomain Formation, Oxidation, and Cation Ordering in LaCa2Fe3O8+y

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

    Price, Patrick M.; Browning, Nigel D.; Butt, Darryl P.

    2015-03-23

    The compound LaCa2Fe3O8+y, also known as the Grenier phase, is known to undergo an order-disorder transformation (ODT) at high temperatures. Oxidation has been observed when the compound is cooled in air after the ODT. In this study, we have synthesized the Grenier compound in air using traditional solid state reactions and investigated the structure and composition before and after the ODT. Thermal analysis showed that the material undergoes an order-disorder transformation in both oxygen and argon atmospheres with dynamic, temperature dependent, oxidation upon cooling. Results from scanning transmission electron microscopy (STEM) suggest that the Grenier phase has preferential segregation ofmore »Ca and La on the two crystallographic A-sites before the ODT, but a random distribution above the ODT temperature. Furthermore, STEM images suggest the possibility that oxygen excess may exist in La-rich regions within microdomains rather than at microdomain boundaries.« less

  17. Microdomain Formation, Oxidation, and Cation Ordering in LaCa2Fe3O8+y

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

    Price, Patrick M.; Browning, Nigel D.; Butt, Darryl P.

    2015-03-23

    The compound LaCa2Fe3O8+y, also known as the Grenier phase, is known to undergo an order-disorder transformation (ODT) at high temperatures. Oxidation has been observed when the compound is cooled in air after the ODT. In this study, we have synthesized the Grenier compound in air using traditional solid state reactions and investigated the structure and composition before and after the ODT. Thermal analysis showed that the material undergoes an order-disorder transformation in both oxygen and argon atmospheres with dynamic, temperature dependent, oxidation upon cooling. Results from scanning transmission electron microscopy (STEM) suggest that the Grenier phase has preferential segregation ofmore » Ca and La on the two crystallographic A-sites before the ODT, but a random distribution above the ODT temperature. Furthermore, STEM images suggest the possibility that oxygen excess may exist in La-rich regions within microdomains rather than at microdomain boundaries.« less

  18. ANALOG I/O MODULE TEST SYSTEM BASED ON EPICS CA PROTOCOL AND ACTIVEX CA INTERFACE

    SciTech Connect (OSTI)

    YENG,YHOFF,L.

    2003-10-13

    Analog input (ADC) and output (DAC) modules play a substantial role in device level control of accelerator and large experiment physics control system. In order to get the best performance some features of analog modules including linearity, accuracy, crosstalk, thermal drift and so on have to be evaluated during the preliminary design phase. Gain and offset error calibration and thermal drift compensation (if needed) may have to be done in the implementation phase as well. A natural technique for performing these tasks is to interface the analog VO modules and GPIB interface programmable test instruments with a computer, which can complete measurements or calibration automatically. A difficulty is that drivers of analog modules and test instruments usually work on totally different platforms (vxworks VS Windows). Developing new test routines and drivers for testing instruments under VxWorks (or any other RTOS) platform is not a good solution because such systems have relatively poor user interface and developing such software requires substantial effort. EPICS CA protocol and ActiveX CA interface provide another choice, a PC and LabVIEW based test system. Analog 110 module can be interfaced from LabVIEW test routines via ActiveX CA interface. Test instruments can be controlled via LabVIEW drivers, most of which are provided by instrument vendors or by National Instruments. Labview also provides extensive data analysis and process functions. Using these functions, users can generate powerful test routines very easily. Several applications built for Spallation Neutron Source (SNS) Beam Loss Monitor (BLM) system are described in this paper.

  19. Improved thermoelectric performance of n-type Ca and Ca-Ce filled skutterudites

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

    Thompson, Daniel R.; Liu, Chang; Ellison, Nicole D.; Salvador, James R.; Meyer, Martin S.; Haddad, Daad B.; Wang, Hsin; Cai, W.

    2014-12-28

    Thermoelectric (TE) technology for use in automotive waste heat recovery is being advanced by General Motors with support from the US Department of Energy. Skutterudites are a very promising material for this application of TE technology due to their superior mechanical properties and good TE performance. Double-filled YbxBayCo4Sb12 with ZT values around 1.1 at 750K are the best performing n-type skutterudites produced on a large scale using an economically viable approach of melt spinning (MS) in conjunction with spark plasma sintering (SPS). Another economical production method on the tons scale, the melt quench annealing (MQA) technique, has been recently claimedmore » by Treibacher Industrie AG, further information is available [G. Rogl et al., Acta Mater. 76, 434-448 (2014)]. A possible hurdle to commercial implementation of these materials is the use of rare earths as the fillers to reduce thermal conductivity and improve the electrical transport properties. It will be shown herein that skutterudites double-filled with Ca and Ce, both of which are lower-cost fillers, display markedly different TE properties depending on whether they are produced by MQA or MS + SPS synthesis techniques. Finally, Ca and Ce double-filled skutterudites prepared by MS + SPS have TE properties that are superior to the same compositions prepared by MQA and that are comparable to the best performing Yb and Ba filled materials. Furthermore, the results of this study suggest that the unusually poor transport properties of MQA Ca-filled skutterudites can be ascribed to deleterious secondary phases, which is contrary to reports in the literature attempting to explain these irregularities via band structure features.« less

  20. Improved thermoelectric performance of n-type Ca and Ca-Ce filled skutterudites

    SciTech Connect (OSTI)

    Thompson, Daniel R.; Liu, Chang; Ellison, Nicole D.; Salvador, James R.; Meyer, Martin S.; Haddad, Daad B.; Wang, Hsin; Cai, W.

    2014-12-28

    Thermoelectric (TE) technology for use in automotive waste heat recovery is being advanced by General Motors with support from the US Department of Energy. Skutterudites are a very promising material for this application of TE technology due to their superior mechanical properties and good TE performance. Double-filled Yb{sub x}Ba{sub y}Co{sub 4}Sb{sub 12} with ZT values around 1.1 at 750?K are the best performing n-type skutterudites produced on a large scale using an economically viable approach of melt spinning (MS) in conjunction with spark plasma sintering (SPS). Another economical production method on the tons scale, the melt quench annealing (MQA) technique, has been recently claimed by Treibacher Industrie AG, further information is available [G. Rogl et al., Acta Mater. 76, 434448 (2014)]. A possible hurdle to commercial implementation of these materials is the use of rare earths as the fillers to reduce thermal conductivity and improve the electrical transport properties. It will be shown herein that skutterudites double-filled with Ca and Ce, both of which are lower-cost fillers, display markedly different TE properties depending on whether they are produced by MQA or MS + SPS synthesis techniques. Ca and Ce double-filled skutterudites prepared by MS + SPS have TE properties that are superior to the same compositions prepared by MQA and that are comparable to the best performing Yb and Ba filled materials. Furthermore, the results of this study suggest that the unusually poor transport properties of MQA Ca-filled skutterudites can be ascribed to deleterious secondary phases, which is contrary to reports in the literature attempting to explain these irregularities via band structure features.

  1. Improved thermoelectric performance of n-type Ca and Ca-Ce filled skutterudites

    SciTech Connect (OSTI)

    Thompson, Daniel R.; Liu, Chang; Ellison, Nicole D.; Salvador, James R.; Meyer, Martin S.; Haddad, Daad B.; Wang, Hsin; Cai, W.

    2014-12-28

    Thermoelectric (TE) technology for use in automotive waste heat recovery is being advanced by General Motors with support from the US Department of Energy. Skutterudites are a very promising material for this application of TE technology due to their superior mechanical properties and good TE performance. Double-filled YbxBayCo4Sb12 with ZT values around 1.1 at 750K are the best performing n-type skutterudites produced on a large scale using an economically viable approach of melt spinning (MS) in conjunction with spark plasma sintering (SPS). Another economical production method on the tons scale, the melt quench annealing (MQA) technique, has been recently claimed by Treibacher Industrie AG, further information is available [G. Rogl et al., Acta Mater. 76, 434-448 (2014)]. A possible hurdle to commercial implementation of these materials is the use of rare earths as the fillers to reduce thermal conductivity and improve the electrical transport properties. It will be shown herein that skutterudites double-filled with Ca and Ce, both of which are lower-cost fillers, display markedly different TE properties depending on whether they are produced by MQA or MS + SPS synthesis techniques. Finally, Ca and Ce double-filled skutterudites prepared by MS + SPS have TE properties that are superior to the same compositions prepared by MQA and that are comparable to the best performing Yb and Ba filled materials. Furthermore, the results of this study suggest that the unusually poor transport properties of MQA Ca-filled skutterudites can be ascribed to deleterious secondary phases, which is contrary to reports in the literature attempting to explain these irregularities via band structure features.

  2. Production of high intensity {sup 48}Ca for the 88-Inch Cyclotron and other updates

    SciTech Connect (OSTI)

    Benitez, J. Y.; Hodgkinson, A.; Lyneis, C. M. Strohmeier, M.; Thullier, T.; Todd, D.; Xie, D.; Franzen, K. Y.

    2014-02-15

    Recently the Versatile ECR for NUclear Science (VENUS) ion source was engaged in a 60-day long campaign to deliver high intensity {sup 48}Ca{sup 11+} beam to the 88-Inch Cyclotron. As the first long term use of VENUS for multi-week heavy-element research, new methods were developed to maximize oven to target efficiency. First, the tuning parameters of VENUS for injection into the cyclotron proved to be very different than those used to tune VENUS for maximum beam output of the desired charge state immediately following its bending magnet. Second, helium with no oxygen support gas was used to maximize the efficiency. The performance of VENUS and its low temperature oven used to produce the stable requested 75 e?A of {sup 48}Ca{sup 11+} beam current was impressive. The consumption of {sup 48}Ca in VENUS using the low temperature oven was checked roughly weekly, and was found to be on average 0.27 mg/h with an ionization efficiency into the 11+ charge state of 5.0%. No degradation in performance was noted over time. In addition, with the successful operation of VENUS the 88-Inch cyclotron was able to extract a record 2 p?A of {sup 48}Ca{sup 11+}, with a VENUS output beam current of 219 e?A. The paper describes the characteristics of the VENUS tune used for maximum transport efficiency into the cyclotron as well as ongoing efforts to improve the transport efficiency from VENUS into the cyclotron. In addition, we briefly present details regarding the recent successful repair of the cryostat vacuum system.

  3. Maps of Selected State Subdivisions

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

    Crude Oil, Natural Gas, and Natural Gas Liquids Proved Reserves Summary Maps of Selected State Subdivisions Map 1: Alaska Map 2: California Map 3: Louisiana Map 4: New Mexico Map 5: Texas Map 6: Western Planning Area, Gulf of Mexico Map 7: Central Planning Area, Gulf of Mexico Map 8: Eastern Planning Area, Gulf of Mexico Map 1: Alaska AK 50 - North Onshore and Offshore AK 10 - South Onshore AK 05 - South State Offshore AK 00 - South Federal Offshore Map 2: California CA 50 - Coastal Region

  4. Cation ordering and effect of biaxial strain in double perovskite CsRbCaZnCl6

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

    Pilania, G.; Uberuaga, B. P.

    2015-03-19

    Here, we investigate the electronic structure, energetics of cation ordering, and effect of biaxial strain on double perovskite CsRbCaZnCl6 using first-principles calculations based on density functional theory. The two constituents (i.e., CsCaCl3 and RbZnCl3) forming the double perovskite exhibit a stark contrast. While CsCaCl3 is known to exist in a cubic perovskite structure and does not show any epitaxial strain induced phase transitions within an experimentally accessible range of compressive strains, RbZnCl3 is thermodynamically unstable in the perovskite phase and exhibits ultra-sensitive response at small epitaxial strains if constrained in the perovskite phase. We show that combining the two compositionsmore » in a double perovskite structure not only improves overall stability but also the strain-polarization coupling of the material. Our calculations predict a ground state with P4/nmm space group for the double perovskite, where A-site cations (i.e., Cs and Rb) are layer-ordered and B-site cations (i.e., Ca and Zn) prefer a rocksalt type ordering. The electronic structure and bandgap in this system are shown to be quite sensitive to the B-site cation ordering and is minimally affected by the ordering of A-site cations. We find that at experimentally accessible compressive strains CsRbCaZnCl6 can be phase transformed from its paraelectric ground state to an antiferroelectric state, where Zn atoms contribute predominantly to the polarization. Furthermore, both energy difference and activation barrier for a transformation between this antiferroelectric state and the corresponding ferroelectric configuration are predicted to be small. As a result, the computational approach presented here opens a new pathway towards a rational design of novel double perovskites with improved strain response and functionalities.« less

  5. EOS7CA Version 1.0: TOUGH2 Module for Gas Migration in Shallow Subsurface Porous Media Systems

    SciTech Connect (OSTI)

    Oldenburg, Curtis M.

    2015-06-22

    EOS7CA is a TOUGH2 module for mixtures of a non-condensible gas (NCG) and air (with or without a gas tracer), an aqueous phase, and water vapor. The user can select the NCG as being CO2, N2, or CH4. EOS7CA uses a cubic equation of state with a multiphase version of Darcy’s Law to model flow and transport of gas and aqueous phase mixtures over a range of pressures and temperatures appropriate to shallow subsurface porous media systems. The limitation to shallow systems arises from the use of Henry’s Law for gas solubility which is appropriate for low pressures but begins to over-predict solubility starting at pressures greater than approximately 1 MPa (10 bar). The components modeled in EOS7CA are water, brine, NCG, gas tracer, air, and optional heat.

  6. EOS7CA Version 1.0: TOUGH2 Module for Gas Migration in Shallow Subsurface Porous Media Systems

    Energy Science and Technology Software Center (OSTI)

    2015-06-22

    EOS7CA is a TOUGH2 module for mixtures of a non-condensible gas (NCG) and air (with or without a gas tracer), an aqueous phase, and water vapor. The user can select the NCG as being CO2, N2, or CH4. EOS7CA uses a cubic equation of state with a multiphase version of Darcy’s Law to model flow and transport of gas and aqueous phase mixtures over a range of pressures and temperatures appropriate to shallow subsurface porousmore » media systems. The limitation to shallow systems arises from the use of Henry’s Law for gas solubility which is appropriate for low pressures but begins to over-predict solubility starting at pressures greater than approximately 1 MPa (10 bar). The components modeled in EOS7CA are water, brine, NCG, gas tracer, air, and optional heat.« less

  7. 229th Electrochemical Society (ECS) Meeting (San Diego, CA) - JCAP

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

    229th Electrochemical Society (ECS) Meeting (San Diego, CA) 229th Electrochemical Society (ECS) Meeting (San Diego, CA) Sun, May 29, 2016 12:00pm 12:00 Thu, Jun 2, 2016 1:00pm 13:00 San Diego, CA USA Joel A. Haber, "Development of Solar Fuels Photoanodes through Combinatorial Integration of Ni-La-Co-Ce Oxide and Ni-Fe-Co-Ce Oxide Catalysts on BiVO4" The development of an efficient photoanode remains the primary materials challenge in the establishment of a scalable technology for solar

  8. Emission Regulations Reduced Impact of Climate Change in CA

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

    Emission Regulations Reduced Impact of Climate Change in CA Emission Regulations Reduced Impact of Climate Change in CA Study shows clean diesel programs slashed black carbon, a powerful short-term contributor to global warming June 13, 2013 Jon Weiner 510-486-4014 jrweiner@lbl.gov CA-BC-graphic.jpg Sacramento - Reductions in emissions of black carbon since the late 1980s, mostly from diesel engines as a result of air quality programs, have resulted in a measurable reduction of concentrations of

  9. Microsoft Word - Ca-DTPA Insert_2 Pages.doc

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

    calcium trisodium injection contains the sodium salt of calcium diethylenetriaminepentaacetate. Pentetate calcium trisodium is also known as trisodium calcium diethylenetriaminepentaacetate and is commonly referred to as Ca-DTPA. It has a molecular formula of Na3CaC14H18N3O10 and a molecular weight of 497.4 Daltons. It is represented by the following struc tural formula: Ca-DTPA is supplied as a clear, colorless, hyperosmolar (1260 mOsmol/kg) solution in a colorless ampoule containing 5 mL. The

  10. Ab Initio Study of 40Ca with an Importance Truncated No-Core Shell Model

    SciTech Connect (OSTI)

    Roth, R; Navratil, P

    2007-05-22

    We propose an importance truncation scheme for the no-core shell model, which enables converged calculations for nuclei well beyond the p-shell. It is based on an a priori measure for the importance of individual basis states constructed by means of many-body perturbation theory. Only the physically relevant states of the no-core model space are considered, which leads to a dramatic reduction of the basis dimension. We analyze the validity and efficiency of this truncation scheme using different realistic nucleon-nucleon interactions and compare to conventional no-core shell model calculations for {sup 4}He and {sup 16}O. Then, we present the first converged calculations for the ground state of {sup 40}Ca within no-core model spaces including up to 16{h_bar}{Omega}-excitations using realistic low-momentum interactions. The scheme is universal and can be easily applied to other quantum many-body problems.

  11. 11-03-2010 CA-B-10-0135

    National Nuclear Security Administration (NNSA)

    1-03-2010 CA-B-10-0135 Sandia National LaboratoriesCalifornia proposes to establish a university partnership LDRD to support a fellowship student whose project, titled ...

  12. RAPID/Roadmap/7-CA-e | Open Energy Information

    Open Energy Info (EERE)

    see: Green arrow.PNG 9-FD-a: BLM NEPA Process 7-CA-e.8 - Conduct Environmental, Reliability, and Mitigation Assessments At the same time that the BLM is conducting the Project...

  13. RAPID/Roadmap/8-CA-b | Open Energy Information

    Open Energy Info (EERE)

    in a timely manner and not wait until the last day of the open window. GIDAP Best Management Practice, section 3.5. 8-CA-b.7 - Hold Scoping Meeting Within five (5) Business...

  14. Field Projects: Cañon City, Colorado

    Broader source: Energy.gov [DOE]

    In June 2000, Cotter Corporation installed a PRB at its uranium ore processing millsite in Cañon City, Colorado. The PRB contains zero-valent iron (ZVI) that treated molybdenum and uranium...

  15. Calexico, CA Natural Gas Pipeline Exports to Mexico (Million...

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

    Million Cubic Feet) Calexico, CA Natural Gas Pipeline Exports to Mexico (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2011 565 544 592 557 600 586 592 ...

  16. Ogilby Mesa, CA Natural Gas Pipeline Imports From Mexico (Million...

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

    Million Cubic Feet) Ogilby Mesa, CA Natural Gas Pipeline Imports From Mexico (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2011 78 376 2013 16 7 - No ...

  17. Otay Mesa, CA Natural Gas Pipeline Imports from Mexico (Million...

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

    from Mexico (Million Cubic Feet) Otay Mesa, CA Natural Gas Pipeline Imports from Mexico (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2011 236 86 93 110 ...

  18. EA-1638: Solyndra, Inc. Photovoltaic Manufacturing Facility in Fremont, CA

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

    | Department of Energy 8: Solyndra, Inc. Photovoltaic Manufacturing Facility in Fremont, CA EA-1638: Solyndra, Inc. Photovoltaic Manufacturing Facility in Fremont, CA March 2, 2009 EA-1638: Final Environmental Assessment Loan Guarantee to Solyndra, Inc. for Construction of A Photovoltaic Manufacturing Facility and Leasing of an Existing Commercial Facility in Fremont, California March 31, 2009 EA-1638: Finding of No Significant Impact Loan Guarantee to Solyndra, Inc. for Construction of a

  19. EA-1798: Abengoa Solar's Mojave Solar Project near Barstow, CA |

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

    Department of Energy 8: Abengoa Solar's Mojave Solar Project near Barstow, CA EA-1798: Abengoa Solar's Mojave Solar Project near Barstow, CA July 1, 2011 EA-1798: Final Environmental Assessment Loan Guarantee to Mojave Solar, LLC for the Abengoa Mojave Solar Project near Barstow, California July 8, 2011 EA-1798: Finding of No Significant Impact Loan Guarantee to Mojave Solar, LLC for the Abengoa Mojave Solar Project near Barstow, California March 17, 2011 Abengoa Mojave Final Biological

  20. NUG Meeting June 24-25, 2004 (Berkeley, CA)

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

    NUG Meeting June 24-25, 2004 (Berkeley, CA) Dates June 24-25, 2004 Location Lawrence Berkeley National Laboratory 1 Cyclotron Road Building 54, Conference Room 130 (Perseverance Hall) Berkeley, CA Presentations Agenda NERSC User Group (NUG) Meeting June 24-25, 2004 at Berkeley Lab The Spring 2004 NUG Meeting took place on Thursday, June 24 (training day) and Friday, June 25 (business meeting), in Building 54, Conference Room 130 (Perseverance Hall). Training Day Lecture Materials Time Title

  1. Electrochemistry Gordon Research Seminar/Conference (Ventura, CA) - JCAP

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

    Electrochemistry Gordon Research Seminar/Conference (Ventura, CA) Electrochemistry Gordon Research Seminar/Conference (Ventura, CA) Sat, Jan 9, 2016 2:30pm 14:30 Fri, Jan 15, 2016 3:30pm 15:30 Sonja Francis, "Catalyst Screening for Electrochemical Carbon Dioxide Reduction" Co-authors: Daniel Torelli, Bruce Brunschwig, Nate Lewis October 11 2015 Electrochemical Energy Summit at the 228th ECS Meeting (Phoenix, AZ) February 28 Renewable Energy: Solar Fuels - Gordon Research Conference

  2. Climate Action Champions: Blue Lake Rancheria Tribe, CA | Department of

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

    Energy Blue Lake Rancheria Tribe, CA Climate Action Champions: Blue Lake Rancheria Tribe, CA The Blue Lake Rancheria, California, a federally recognized Native American tribal Government and community, is located on over 100 acres of land spanning the scenic Mad River in northwestern California. In its operational strategy, the Tribe has implemented the ‘seven generations’ philosophy, where actions taken today will have a positive impact for seven generations to come. This results

  3. Computational insights on crystal structures of the oxygen-evolving complex of photosystem II with either Ca²⁺ or Ca²⁺ substituted by Sr²⁺

    SciTech Connect (OSTI)

    Vogt, Leslie; Ertem, Mehmed Z.; Pal, Rhitankar; Brudvig, Gary W.; Batista, Victor S.

    2015-01-15

    The oxygen-evolving complex of photosystem II can function with either Ca²⁺ or Sr²⁺ as the heterocation, but the reason for differing turnover rates remains unresolved despite reported X-ray crystal structures for both forms. Using quantum mechanics/molecular mechanics (QM/MM) calculations, we optimize structures with each cation in both the resting state (S₁) and in a series of reduced states (S₀, S₋₁, and S-₂). Through comparison with experimental data, we determine that X-ray crystal structures with either Ca²⁺ or Sr²⁺ are most consistent with the S-₂ state, Mn₄[III,III,III,II] with O4 and O5 protonated. As expected, the QM/MM models show that Ca²⁺/Sr²⁺ substitution results in elongation of the heterocation bonds and displaces terminal waters W3 and W4. The optimized structures also show that hydrogen-bonded W5 is displaced in all S states with Sr²⁺ as the heterocation, suggesting that this water may play a critical role during water oxidation.

  4. Computational insights on crystal structures of the oxygen-evolving complex of photosystem II with either Ca²⁺ or Ca²⁺ substituted by Sr²⁺

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

    Vogt, Leslie; Ertem, Mehmed Z.; Pal, Rhitankar; Brudvig, Gary W.; Batista, Victor S.

    2015-01-15

    The oxygen-evolving complex of photosystem II can function with either Ca²⁺ or Sr²⁺ as the heterocation, but the reason for differing turnover rates remains unresolved despite reported X-ray crystal structures for both forms. Using quantum mechanics/molecular mechanics (QM/MM) calculations, we optimize structures with each cation in both the resting state (S₁) and in a series of reduced states (S₀, S₋₁, and S-₂). Through comparison with experimental data, we determine that X-ray crystal structures with either Ca²⁺ or Sr²⁺ are most consistent with the S-₂ state, Mn₄[III,III,III,II] with O4 and O5 protonated. As expected, the QM/MM models show that Ca²⁺/Sr²⁺ substitutionmore » results in elongation of the heterocation bonds and displaces terminal waters W3 and W4. The optimized structures also show that hydrogen-bonded W5 is displaced in all S states with Sr²⁺ as the heterocation, suggesting that this water may play a critical role during water oxidation.« less

  5. Studies on Ca2+-Doped CeBr3 Scintillating Materials

    SciTech Connect (OSTI)

    Guss, P. [NSTec; Foster, M. E. [SNL; Wong, B. M. [SNL; Doty, F. P. [SNL; Shah, K. [RMD; Squillante, M. [RMD; Glodo, J. [RMD; Yuan, D. [NSTec

    2013-07-03

    Despite the outstanding scintillation performance characteristics of cerium tribromide (CeBr3) and cerium-activated lanthanum tribromide (LaBr3:Ce), their commercial availability and application is limited due to the difficulties of growing large, crack-free single crystals from these fragile materials. The objective of this investigation was to employ aliovalent doping to increase crystal strength while maintaining the optical properties of the crystal. One divalent dopant (Ca2+) was investigated as a dopant to strengthen CeBr3 without negatively impacting scintillation performance. Ingots containing nominal concentrations of 1.9% of the Ca2+ dopant were grown. Preliminary scintillation measurements are presented for this aliovalently doped scintillator. Ca2+-doped CeBr3 exhibited little or no change in the peak fluorescence emission for 371 nm optical excitation for CeBr3. The structural, electronic, and optical properties of CeBr3 crystals were investigated using the density functional theory within generalized gradient approximation. The calculated lattice parameters are in good agreement with the experimental data. The energy band structures and density of states were obtained. The optical properties of CeBr3, including the dielectric function, were calculated.

  6. Investigation of low-lying electric dipole strength in the semimagic nucleus {sup 44}Ca

    SciTech Connect (OSTI)

    Isaak, J.; Fritzsche, M.; Hartmann, T.; Pietralla, N.; Romig, C.; Sonnabend, K.; Savran, D.; Galaviz, D.; Kamerdzhiev, S.; Kelley, J. H.; Kwan, E.; Rusev, G.; Tonchev, A. P.; Tornow, W.; Zilges, A.

    2011-03-15

    The dipole-strength distribution in the semimagic nucleus {sup 44}Ca has been measured up to 10 MeV excitation energy in photon-scattering experiments using bremsstrahlung and monoenergetic 100% linearly polarized photon beams. The combination of both measurements allows a clear determination of spin and parity quantum numbers of the excited states as well as absolute cross sections and transition probabilities. The results show that the majority of the dipole strength in {sup 44}Ca below 10 MeV is due to E1 transitions while M1 strength plays only a minor role. The experimental results are compared to the strength in the neighboring doubly magic nuclei {sup 40,48}Ca and to microscopic calculations within the extended theory of finite Fermi systems in order to investigate the evolution of the low-lying E1 strength in this isotopic chain. Both, experiment and calculations, show a nontrivial dependence of the total E1 strength as a function of the neutron number.

  7. DOE Zero Energy Ready Home Case Study: KB Home, Lancaster, CA...

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

    KB Home, Lancaster, CA DOE Zero Energy Ready Home Case Study: KB Home, Lancaster, CA Case study of a DOE Zero Energy Ready home in Lancaster, CA, that achieved a HERS 43 without PV ...

  8. High-Tc superconductivity at the interface between the CaCuO2 and SrTiO3 insulating oxides

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

    Di Castro, D.; Cantoni, C.; Ridolfi, F.; Aruta, C.; Tebano, A.; Yang, N.; Balestrino, G.

    2015-09-28

    At interfaces between complex oxides it is possible to generate electronic systems with unusual electronic properties, which are not present in the isolated oxides. One important example is the appearance of superconductivity at the interface between insulating oxides, although, until now, with very low Tc. We report the occurrence of high Tc superconductivity in the bilayer CaCuO2/SrTiO3, where both the constituent oxides are insulating. In order to obtain a superconducting state, the CaCuO2/SrTiO3 interface must be realized between the Ca plane of CaCuO2 and the TiO2 plane of SrTiO3. Only in this case can oxygen ions be incorporated in themore » interface Ca plane, acting as apical oxygen for Cu and providing holes to the CuO2 planes. In addition, a detailed hole doping spatial profile can be obtained by scanning transmission electron microscopy and electron-energy-loss spectroscopy at the O K edge, clearly showing that the (super)conductivity is confined to about 1–2 CaCuO2 unit cells close to the interface with SrTiO3. The results obtained for the CaCuO2/SrTiO3 interface can be extended to multilayered high Tc cuprates, contributing to explaining the dependence of Tc on the number of CuO2 planes in these systems.« less

  9. DOE - Office of Legacy Management -- Naval Ordnance Test Station - CA 06

    Office of Legacy Management (LM)

    Test Station - CA 06 FUSRAP Considered Sites Site: NAVAL ORDNANCE TEST STATION (CA.06) Eliminated from consideration under FUSRAP Designated Name: Not Designated Alternate Name: China Lake Naval Weapons Center Salt Wells Pilot Plant CA.06-1 Location: Inyokern , California CA.06-1 Evaluation Year: 1987 CA.06-1 Site Operations: Naval facility; experimental development work on shape charges and quality castings on a pilot plant scale. CA.06-1 Site Disposition: Eliminated - No indication that

  10. DOE - Office of Legacy Management -- Northrup Aircraft Co Inc - CA 0-02

    Office of Legacy Management (LM)

    Northrup Aircraft Co Inc - CA 0-02 FUSRAP Considered Sites Site: NORTHRUP AIRCRAFT CO., INC (CA.0-02 ) Eliminated from consideration under FUSRAP Designated Name: Not Designated Alternate Name: None Location: Hawthorne , California CA.0-02-1 Evaluation Year: 1987 CA.0-02-1 CA.0-02-2 Site Operations: Participated in projects involving nuclear energy for the propulsion of aircraft. CA.0-02-1 Site Disposition: Eliminated - No Authority - NRC licensed CA.0-02-1 CA.0-02-2 Radioactive Materials

  11. Hydrogen Education State Partnership Program | Department of Energy

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

    Education State Partnership Program Hydrogen Education State Partnership Program 2009 DOE Hydrogen Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting, May 18-22, 2009 -- Washington D.C. ed_15_kubert.pdf (356.52 KB) More Documents & Publications CESA-fuelcell-advancing-state-policies2010.pdf Fuel Cells and RPSs: An Introduction Presentation for Hydrogen State and Regional Workshop, March 30, 2008, Sacramento, CA

  12. Strain-induced topological transition in SrRu2O6 and CaOs2O6

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

    Ochi, Masayuki; Arita, Ryotaro; Trivedi, Nandini; Okamoto, Satoshi

    2016-05-24

    The topological property of SrRu$_2$O$_6$ and isostructural CaOs$_2$O$_6$ under various strain conditions is investigated using density functional theory. Based on an analysis of parity eigenvalues, we anticipate that a three-dimensional strong topological insulating state should be realized when band inversion is induced at the A point in the hexagonal Brillouin zone. For SrRu$_2$O$_6$, such a transition requires rather unrealistic tuning, where only the $c$ axis is reduced while other structural parameters are unchanged. However, given the larger spin-orbit coupling and smaller lattice constants in CaOs$_2$O$_6$, the desired topological transition does occur under uniform compressive strain. Our study paves a waymore » to realize a topological insulating state in a complex oxide, which has not been experimentally demonstrated so far.« less

  13. CA, State Offshore Natural Gas Reserves Summary as of Dec. 31

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

    57 66 82 66 75 76 1979-2014 Natural Gas Nonassociated, Wet After Lease Separation 4 3 3 1 0 0 1979-2014 Natural Gas Associated-Dissolved, Wet After Lease Separation 53 63 79 65 75 76 1979-2014 Dry Natural Gas 57 66 82 66 75 76

  14. Presentation for Hydrogen State and Regional Workshop, March 30, 2008, Sacramento, CA

    Broader source: Energy.gov [DOE]

    Policies to Advance the Development and Deployment of Fuel Cells: Case Studies in the Move to Main Stream Success

  15. State Overview

    Energy Savers [EERE]

    of Energy Competitive Financial Assistance Program State Energy Program Competitive Financial Assistance Program The U.S. Department of Energy's (DOE's) Office of Energy Efficiency and Renewable Energy's (EERE's) State Energy Program (SEP) dedicates a portion of its funding each year (during Fiscal Years 2010-2013, DOE awarded $51.8 million) to provide competitively awarded financial assistance to U.S. states and territories to advance policies, programs, and market strategies that

  16. Site Environmental Report for 2014 SNL/CA

    SciTech Connect (OSTI)

    Larsen, Barbara L.

    2015-06-01

    Sandia National Laboratories, California (SNL/CA) is a government-owned/contractoroperated laboratory. Sandia Corporation, a wholly owned subsidiary of Lockheed Martin Corporation, manages and operates the laboratory for the Department of Energy’s National Nuclear Security Administration (NNSA). The NNSA Sandia Field Office administers the contract and oversees contractor operations at the site. This Site Environmental Report for 2014 was prepared in accordance with DOE Order 231.1B, Environment, Safety and Health Reporting (DOE 2011d). The report provides a summary of environmental monitoring information and compliance activities that occurred at SNL/CA during calendar year 2014. General site and environmental program information is also included.

  17. DOE - Office of Legacy Management -- Mare Island Navy Yard - CA 0-01

    Office of Legacy Management (LM)

    Mare Island Navy Yard - CA 0-01 FUSRAP Considered Sites Site: MARE ISLAND NAVY YARD (CA.0-01 ) Eliminated from consideration under FUSRAP - Referred to DoD Designated Name: Not Designated Alternate Name: None Location: Mare Island , California CA.0-01-2 Evaluation Year: 1989 CA.0-01-1 Site Operations: Naval yard and shipping station. CA.0-01-2 Site Disposition: Eliminated - Referred to DOD CA.0-01-1 CA.0-01-2 Radioactive Materials Handled: None Indicated Primary Radioactive Materials Handled:

  18. DOE - Office of Legacy Management -- Arthur D Little Co - CA 01

    Office of Legacy Management (LM)

    Arthur D Little Co - CA 01 FUSRAP Considered Sites Site: Arthur D Little Co (CA.01 ) Eliminated from consideration under FUSRAP Designated Name: Not Designated Alternate Name: Merrill Company CA.01-1 Location: San Francisco , California CA.01-2 Evaluation Year: 1986 CA.01-1 Site Operations: Performed research and development work on the modified char process for recovery of uranium from leach acid slurries; solvent extraction from carbonate leach solutions; and air oxidation of reduced uranium

  19. DOE - Office of Legacy Management -- Dow Chemical Co - Walnut Creek - CA 02

    Office of Legacy Management (LM)

    Walnut Creek - CA 02 FUSRAP Considered Sites Site: Dow Chemical Co. - Walnut Creek (CA.02 ) Eliminated from consideration under FUSRAP Designated Name: Not Designated Alternate Name: None Location: 2800 Mitchell Drive , Walnut Creek , California CA.02-1 Evaluation Year: 1987 CA.02-2 CA.02-3 Site Operations: From 1947 to 1957, conducted process studies and experimental investigations on different uranium and thorium-bearing ores; pilot-scale solvent extraction of uranium from phosphoric acid;

  20. Magnetisation studies of phase co-existence in Gd{sub 1-x}Ca{sub x}BaCo{sub 2}O{sub 5.5}

    SciTech Connect (OSTI)

    Thirumurugan, N. [Condensed Matter Physics Division, Indira Gandhi Centre for Atomic Research, Kalpakkam (India)] [Condensed Matter Physics Division, Indira Gandhi Centre for Atomic Research, Kalpakkam (India); Bharathi, A., E-mail: bharathi@igcar.gov.in [Condensed Matter Physics Division, Indira Gandhi Centre for Atomic Research, Kalpakkam (India); Arulraj, A.; Sundar, C.S. [Condensed Matter Physics Division, Indira Gandhi Centre for Atomic Research, Kalpakkam (India)] [Condensed Matter Physics Division, Indira Gandhi Centre for Atomic Research, Kalpakkam (India)

    2012-04-15

    Highlights: Black-Right-Pointing-Pointer The series Gd{sub 1-x}Ca{sub x}BaCo{sub 2}O{sub 5.5} was synthesised by solid state reaction. Black-Right-Pointing-Pointer Magnetisation studies were carried out in the 4-300 K temperature range in magnetic fields upto 16 Tesla. Black-Right-Pointing-Pointer Results were used to formulate the T versus Ca fraction, phase diagram. Black-Right-Pointing-Pointer Evidence for Magnet-electronic phase separation is shown for the first time in the compound. -- Abstract: Magnetic properties of hole doped, oxygen deficient double perovskite compounds, Gd{sub 1-x}Ca{sub x}BaCo{sub 2}O{sub 5.5}, have been investigated. Ferromagnetic transition temperatures increase and the anti-ferromagnetic transition temperatures decrease with Ca substitution leading to stabilisation of ferromagnetisim for x {>=} 0.05. A detailed study of the ferromagnetic phase indicates the presence of double hysterisis loops for Ca fractions, 0.05 {<=} x {<=} 0.2 in the 50-200 K temperature range, suggestive of the co-existence of two ferromagnetic phases with different co-ercivities. Based on the magnetisation and transport measurements a phase diagram is proposed for Ca doped GdBaCo{sub 2}O{sub 5.5}.

  1. Synthesis of BiPbSrCaCuO superconductor

    DOE Patents [OSTI]

    Hults, W.L.; Kubat-Martin, K.A.; Salazar, K.V.; Phillips, D.S.; Peterson, D.E.

    1994-04-05

    A process and a precursor composition for preparing a lead-doped bismuth-strontium-calcium-copper oxide superconductor of the formula Bi[sub a]Pb[sub b]Sr[sub c]Ca[sub d]Cu[sub e]O[sub f] wherein a is from about 1.7 to about 1.9, b is from about 0.3 to about 0.45, c is from about 1.6 to about 2.2, d is from about 1.6 to about 2.2, e is from about 2.97 to about 3.2 and f is 10[+-]z by reacting a mixture of Bi[sub 4]Sr[sub 3]Ca[sub 3]Cu[sub 4]O[sub 16[+-]z], an alkaline earth metal cuprate, e.g., Sr[sub 9]Ca[sub 5]Cu[sub 24]O[sub 41], and an alkaline earth metal plumbate, e.g., Ca[sub 2[minus]x]Sr[sub x]PbO[sub 4] wherein x is about 0.5, is disclosed.

  2. Synthesis of BiPbSrCaCuO superconductor

    DOE Patents [OSTI]

    Hults, William L.; Kubat-Martin, Kimberly A.; Salazar, Kenneth V.; Phillips, David S.; Peterson, Dean E.

    1994-01-01

    A process and a precursor composition for preparing a lead-doped bismuth-strontium-calcium-copper oxide superconductor of the formula Bi.sub.a Pb.sub.b Sr.sub.c Ca.sub.d Cu.sub.e O.sub.f wherein a is from about 1.7 to about 1.9, b is from about 0.3 to about 0.45, c is from about 1.6 to about 2.2, d is from about 1.6 to about 2.2, e is from about 2.97 to about 3.2 and f is 10.+-.z by reacting a mixture of Bi.sub.4 Sr.sub.3 Ca.sub.3 Cu.sub.4 O.sub.16.+-.z, an alkaline earth metal cuprate, e.g., Sr.sub.9 Ca.sub.5 Cu.sub.24 O.sub.41, and an alkaline earth metal plumbate, e.g., Ca.sub.2-x Sr.sub.x PbO.sub.4 wherein x is about 0.5, is disclosed.

  3. Development of electrically insulating CaO coatings

    SciTech Connect (OSTI)

    Natesan, K.; Reed, C.B.; Uz, M.; Rink, D.L.

    1998-09-01

    A systematic study has been initiated to develop electrically insulating CaO coatings by vapor phase transport and by in-situ formation in a liquid Li environment. Several experiments were conducted in vapor transport studies with variations in process temperature, time, specimen location, specimen surface preparation, and pretreatment. Several of the coatings obtained by the method exhibited Ca concentration in the range of 60--95 wt.% on the surface. However, coating thickness has not been very uniform among several samples exposed in the same run or even within the same sample. The coatings developed in these early tests degraded after 24 h exposure to Li at 500 C. Additional experiments are underway to develop better-adhering and more dense coatings by this method. A program to develop in-situ CaO coatings in Li has been initiated, and the first set of capsule tests at 800 C in three different Li-Ca mixtures will be completed in early July. Specimens included in the run are bare V-4Cr-4Ti alloy, specimens with a grit-blasted surface and O-precharged in 99.999% Ar, polished specimens precharged in a 99.999% Ar and 5000 ppm O{sub 2}-N{sub 2} mixture, and prealuminized V-5Cr-5Ti alloy preoxidized in a 5000 ppm O{sub 2}-N{sub 2} mixture. Additional experiments at lower temperatures are planned.

  4. Otay Mesa, CA Liquefied Natural Gas Exports to Mexico (Million...

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

    Million Cubic Feet) Otay Mesa, CA Liquefied Natural Gas Exports to Mexico (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2011 28.552 20.095 25.827 18.229 ...

  5. Ogilby, CA Natural Gas Pipeline Exports to Mexico (Million Cubic...

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

    Million Cubic Feet) Ogilby, CA Natural Gas Pipeline Exports to Mexico (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2011 2,249 5,761 5,912 5,065 6,188 ...

  6. Thermodynamic studies of CaLaFe??O??(s)

    SciTech Connect (OSTI)

    Rakshit, S.K.; Parida, S.C.; Lilova, Kristina; Navrotsky, Alexandra

    2013-05-01

    Thermodynamic studies on CaLaFe??O??(s) were carried out using Knudsen effusion mass spectrometry and calorimetry, viz. differential scanning calorimetry and high temperature oxide melt solution calorimetry. Standard molar Gibbs free energy of formation (?{sub f}G?{sub m}), enthalpy of formation and heat capacity (C?{sub ?,m}) of the compound were calculated as a function of temperature for the first time. C?{sub ?,m}(CaLaFe??O??) was determined and used for second law analysis, from which enthalpy and entropy of formation of the compound were calculated and the respective values are: ?{sub f}H?{sub m}(298.15 K)/kJ mol?=-6057(8) and S?{sub m}(298.15 K)/J K? mol?=427(5). ?{sub f}H?{sub m}(298.15 K)/kJ mol?: -6055(6) was also calculated using oxide melt solution calorimetry, which is in close agreement with the second law value. A heat capacity anomaly was also observed at T=684 K. A table of thermodynamic data from 298.15 K to 1000 K for CaLaFe??O??(s) was also constructed to represent an optimized set of data. - graphical abstract: Variation of standard molar heat capacities of CaLaF??O??(s) and MFe??O??(s) (M=Sr, Ba and Pb) as a function of temperature. Highlights: Thermodynamic studies on CaLaFe??O??(s) were performed using KEQMS and solution calorimetry. It was synthesized using gel combustion route and characterized by XRD technique. The compound is magnetic in nature and shows a heat capacity anomaly at 684 K. Thermodynamic table was constructed from 298 K to 1000 K.

  7. State Overview

    Energy Savers [EERE]

    U.S.) Crude Oil: 0 Mbarrels (0% total U.S.) Ethanol: 0 Mbarrels (0% total U.S.) NEW HAMPSHIRE STATE FACTS NATURAL HAZARDS OVERVIEW Annual Frequency of Occurrence of Natural ...

  8. United States

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

    EA- 3 14 Order Authorizing Electricity Exports to Mexico Order No. EA-3 14 February ... to transmit electric energy from the United States to Mexico as a power marketer. ...

  9. United States

    Office of Legacy Management (LM)

    Office of Research and EPA 600/R-941209 Environmental Protection Development January 1993 Agency Washington, DC 20460 Offsite Environmental 57,,7 Monitoring Report Radiation Monitoring Around United States Nuclear Test Areas, Calendar Year 1992 UNITED STATES ENVIRONMENTAL PROTECTION AGENCY OFFICE OF RESEARCH AND DEVELOPMENT ENVIRONMENTAL MONITORING SYSTEMS LABORATORY-LAS VEGAS P.O. BOX 93478 LAS VEGAS. NEVADA 891 93-3478 702/798-2100 Dear Reader: Since 1954, the U.S. Environmental Protection

  10. Noise signatures of metastable resistivity states in ferromagnetic insulating manganite

    SciTech Connect (OSTI)

    Przybytek, J.; Fink-Finowicki, J.; Puźniak, R.; Markovich, V.; Jung, G.

    2015-07-28

    Pronounced noise signatures enabling one to discriminate metastable resistivity states in La{sub 0.86}Ca{sub 0.14}MnO{sub 3} single crystals have been observed. The normalized noise spectra for metastable resisitivity differ both in shape and magnitude, indicating that the metastable state is associated with transition of the electronic system into another local minimum of the potential landscape. Such scenario is consistent with freezing of the electronic system into a Coulomb glass state.

  11. First order magnetic transition in single crystal CaFe2As2 detected by 75As NMR

    SciTech Connect (OSTI)

    Baek, Seung Ho; Curro, Nicholas J

    2008-01-01

    We report {sup 75}As Nuclear Magnetic Resonance data in a single crystal of CaFe{sub 2}As{sub 2}. The Knight shift, the electric field gradient, and the spin lattice relaxation rate are strongly temperature dependent in the paramagnetic state, and change discontinuously at the structural transition temperature, T{sub S} = T{sub N} = 167 K. Immediately below, the NMR spectra reveal an internal field at the As site associated with the presence of a commensurate magnetic order. These results indicate that the structural and magnetic transitions in CaFe{sub 2}As{sub 2} are first order and strongly coupled, and that the electron density in the FeAs plane is highly sensitive to the out-of-plane structure.

  12. DOE - Office of Legacy Management -- Shannon Luminous Metals Co - CA 0-03

    Office of Legacy Management (LM)

    Shannon Luminous Metals Co - CA 0-03 FUSRAP Considered Sites Site: SHANNON LUMINOUS METALS CO. (CA.0-03 ) Eliminated from consideration under FUSRAP Designated Name: Not Designated Alternate Name: Shannon Luminous Metals CA.0-03-3 Location: 7356 Santa Monica Blvd. , Hollywood , California CA.0-03-1 Evaluation Year: 1987 CA.0-03-2 Site Operations: Research and development of uranium use in luminous paint pigments in the 1950s. CA.0-03-1 Site Disposition: Eliminated - No Authority - NRC licensed

  13. Concentration of Ca in blood of amateur runners using NAA

    SciTech Connect (OSTI)

    Kovacs, L.; Zamboni, C. B.; Metairon, S.; Nunes, L. A. S.; Lourenco, T. F.; Macedo, D. V.

    2013-05-06

    In this study the Ca levels were determined in amateur runners blood at LABEX (Laboratorio de Bioquimica do Exercicio - UNICAMP, Brazil), using Neutron Activation Analyses (NAA) technique. The range established at rest (162 - 410 mgL{sup -1}) when compared with control group (51 - 439 mgL{sup -1}) suggests that there is a dependency of these limits in the function of the adopted physical training.

  14. Role of CA Utility Programs in Addressing MELS

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

    Role of CA Utility Programs in addressing MELS Mangesh Basarkar, Emerging Technologies, PG&E DOE MELS Workshop Pacific Energy Center, San Francisco, June 3, 2016 OVERVIEW  Growing realization for utilities on the impact of miscellaneous electric loads (MELS) in buildings  Lot of ongoing data collection activities in support of products, programs and services for addressing MELS  Data collection activities primarily happens in the:  Emerging Technologies Programs  Codes and

  15. Ca(OH).sub.2 -treated ceramic microsphere

    DOE Patents [OSTI]

    Sugama, Toshifumi

    1990-01-01

    Geothermal wells with lost circulation problems are treated with a lightweight, high temperature (i.e. 350.degree. C.) cement slurry which incorporates pressure resistant hollow microspheres into the slurry wherein the spheres have been pretreated with an alkali compound such as Ca(OH).sub.2 for up to 20 hours and at 100.degree.-300.degree. C. Preferably, the alkali solution is a saturated aqueous solution and the treatment is for 10 hours.

  16. Ca(OH).sub.2 -treated ceramic microsphere

    DOE Patents [OSTI]

    Sugama, Toshifumi

    1989-01-01

    Geothermal wells with lost circulation problems are treated with a lightweight, high temperature (i.e. 350.degree. C.) cement slurry which incorporates pressure resistant hollow microspheres into the slurry wherein the spheres have been pretreated with an alkali compound such as Ca(OH).sub.2 for up to 20 hours and at 100.degree.-300.degree. C. Preferably, the alkali solution is a saturated aqueous solution and the treatment is for 10 hours.

  17. Ca(OH)[sub 2]-treated ceramic microsphere

    DOE Patents [OSTI]

    Sugama, Toshifumi.

    1989-04-18

    Geothermal wells with lost circulation problems are treated with a lightweight, high temperature (i.e. 350 C) cement slurry which incorporates pressure resistant hollow microspheres into the slurry wherein the spheres have been pretreated with an alkali compound such as Ca(OH)[sub 2] for up to 20 hours and at 100--300 C. Preferably, the alkali solution is a saturated aqueous solution and the treatment is for 10 hours. 2 figs.

  18. Ca(OH)[sub 2]-treated ceramic microsphere

    DOE Patents [OSTI]

    Sugama, Toshifumi.

    1990-06-26

    Geothermal wells with lost circulation problems are treated with a lightweight, high temperature (i.e. 350 C) cement slurry which incorporates pressure resistant hollow microspheres into the slurry wherein the spheres have been pretreated with an alkali compound such as Ca(OH)[sub 2] for up to 20 hours and at 100--300 C. Preferably, the alkali solution is a saturated aqueous solution and the treatment is for 10 hours. 2 figs.

  19. An evaluation of baseline conditions at lease tract C-a, Rio Blanco County, Colorado

    SciTech Connect (OSTI)

    Barteaux, W.L.; Biezugbe, G.

    1987-09-01

    An analysis was made of baseline groundwater quality data from oil shale lease tract C-a, managed by Rio Blanco Oil Shale Company. The data are limited in several respects. All conclusions drawn from the data must be qualified with these limitations. Baseline conditions were determined by analyzing data from wells in the upper bedrock and lower bedrock aquifers and from the alluvial wells. Baseline data were considered all data collected before mining operations began. The water quality was then evaluated using the 1987 Colorado State Basic Standards for Ground Water as a basis. The maximum baseline values for several parameters in each aquifer exceed the standard values. The quality of the upper lower bedrock aquifers varies from region to region within the site. Data on the lower bedrock aquifer are insufficient for speculation on the cause of the variations. Variations in the upper bedrock aquifer are possibly caused by leakage of the lower bedrock aquifer. 16 refs., 9 figs., 9 tabs.

  20. Shell model analysis of the neutrinoless double-{beta} decay of {sup 48}Ca

    SciTech Connect (OSTI)

    Horoi, Mihai [Department of Physics, Central Michigan University, Mount Pleasant, Michigan 48859 (United States); Stoica, Sabin [Horia Hulubei National Institute for Physics and Nuclear Engineering (IFIN-HH), 407 Atomistilor, Magurele-Bucharest, R-077125 (Romania)

    2010-02-15

    The neutrinoless double-{beta} (0{nu}{beta}{beta}) decay process could provide crucial information to determine the absolute scale of neutrino masses, and it is the only one that can establish whether a neutrino is a Dirac or a Majorana particle. A key ingredient for extracting the absolute neutrino masses from 0{nu}{beta}{beta} decay experiments is a precise knowledge of the nuclear matrix elements (NMEs) describing the half-life of this process. We developed a shell model approach for computing the 0{nu}{beta}{beta} decay NME, and we used it to analyze the 0{nu}{beta}{beta} mode of {sup 48}Ca. The dependence of the NME on the short-range correlation parameters, on the average energy of the intermediate states, on the finite-size cutoff parameters, and on the effective interaction used for many-body calculations is discussed.

  1. Time dependent effects and transport evidence for phase separation in La{sub 0.5}Ca{sub 0.5}MnO{sub 3}

    SciTech Connect (OSTI)

    Roy, M.; Mitchell, J. F.; Schiffer, P.

    2000-02-17

    The ground state of La{sub 1{minus}x}Ca{sub x}MnO{sub 3} changes from a ferromagnetic metallic to an antiferromagnetic charge-ordered state as a function of Ca concentration at x {approximately} 0.50. The authors present evidence from transport measurements on a sample with x = 0.50 that the two phases can coexist, in agreement with other observations of phase separation in these materials. They also observe that, by applying and then removing a magnetic field to the mainly charge-ordered state at some temperatures, they can ``magnetically anneal'' the charge order, resulting in a higher zero-field resistivity. They also observe logarithmic time dependence in both resistivity and magnetization after a field sweep at low temperatures.

  2. DOE Zero Energy Ready Home Case Study: KB Home, Lancaster, CA...

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

    Dorado Hill, CA DOE Zero Energy Ready Home Case Study: KB Home, San Marcos, CA, Production Home DOE Zero Energy Ready Home Case Study: Palo Duro Homes, Via del Cielo, Santa Fe, NM

  3. File:08-CA-b - CAISO Interconnection Request Process.pdf | Open...

    Open Energy Info (EERE)

    8-CA-b - CAISO Interconnection Request Process.pdf Jump to: navigation, search File File history File usage Metadata File:08-CA-b - CAISO Interconnection Request Process.pdf Size...

  4. X-Ray Spectroscopy of the Mn(4) Ca Cluster in the Water-Oxidation...

    Office of Scientific and Technical Information (OSTI)

    Ca Cluster in the Water-Oxidation Complex of Photosystem II Citation Details In-Document Search Title: X-Ray Spectroscopy of the Mn(4) Ca Cluster in the Water-Oxidation Complex ...

  5. File:08-CA-f - Permit to Construct.pdf | Open Energy Information

    Open Energy Info (EERE)

    8-CA-f - Permit to Construct.pdf Jump to: navigation, search File File history File usage Metadata File:08-CA-f - Permit to Construct.pdf Size of this preview: 463 599 pixels....

  6. File:07-CA-e - BLM-CEC Joint Siting Process.pdf | Open Energy...

    Open Energy Info (EERE)

    07-CA-e - BLM-CEC Joint Siting Process.pdf Jump to: navigation, search File File history File usage Metadata File:07-CA-e - BLM-CEC Joint Siting Process.pdf Size of this preview:...

  7. File:08-CA-d - CPCN for Transmission Projects (2).pdf | Open...

    Open Energy Info (EERE)

    8-CA-d - CPCN for Transmission Projects (2).pdf Jump to: navigation, search File File history File usage Metadata File:08-CA-d - CPCN for Transmission Projects (2).pdf Size of this...

  8. Photoluminescence and cathodoluminescence properties of Eu{sup 3+} ions activated AMoO{sub 4} (A = Mg, Ca, Sr, Ba) phosphors

    SciTech Connect (OSTI)

    Du, Peng; Yu, Jae Su

    2015-10-15

    Highlights: • Under 393 nm excitation, strong red emission located at 615 nm was observed in all the samples. • The Eu{sup 3+}-activated CaMoO{sub 4} phosphor exhibited the strongest PL properties. • The CIE chromaticity coordinate of Eu{sup 3+}-activated CaMoO{sub 4} phosphor was (0.647,0.352). • The color purity of Eu{sup 3+}-activated CaMoO{sub 4} phosphor was 92.8%. • Strong CL properties were observed in the Eu{sup 3+}-activated CaMoO{sub 4} phosphor. - Abstract: Eu{sup 3+}-activated AMoO{sub 4} (A = Mg, Ca, Sr, Ba) phosphors were synthesized by a solid-state reaction method. Photoluminescence and cathodoluminescence (CL) spectra as well as X-ray diffraction patterns were measured to characterize the fabricated samples. Under 393 nm excitation, strong red emissions located at ∼615 nm corresponding to the {sup 5}D{sub 0} → {sup 7}F{sub 2} transition of Eu{sup 3+} ions were observed in all the samples. Compared with other Eu{sup 3+} ions activated AMoO{sub 4} (A = Mg, Sr, Ba) phosphors, Eu{sup 3+}-activated CaMoO{sub 4} phosphor exhibited the strongest red emission intensity with better Commission Internationale de L’Eclairage chromaticity coordinate and higher color purity. Furthermore, the CL results indicated that the Eu{sup 3+}-activated CaMoO{sub 4} phosphor had excellent luminescence properties.

  9. Superconductivity and Physical Properties of CaPd2Ge2 Single Crystals

    SciTech Connect (OSTI)

    Anand, V K; Kim, Hyunsoo; Tanatar, Makariy A; Prozorov, Ruslan; Johnston, David C

    2014-10-08

    We present the superconducting and normal state properties of CaPd2Ge2 single crystals investigated by magnetic susceptibility ?, isothermal magnetization M, heat capacity Cp, in-plane electrical resistivity ? and London penetration depth ? versus temperature T and magnetic field H measurements. Bulk superconductivity is inferred from the ?(T) and Cp(T) data. The ?(T) data exhibit metallic behavior and a superconducting transition with Tc onset = 1.98 K and zero resistivity at Tc 0 = 1.67 K. The ?(T) reveals the onset of superconductivity at 2.0 K. For T > 2.0 K, the ?(T) and M(H) are weakly anisotropic paramagnetic with ?ab > ?c. The Cp(T) data confirm the bulk superconductivity below Tc = 1.69(3) K. The superconducting state electronic heat capacity is analyzed within the framework of a single-band ?-model of BCS superconductivity and various normal and superconducting state parameters are estimated. Within the ?-model, the Cp(T) data and the ab plane ?(T) data consistently indicate a moderately anisotropic s-wave gap with ?(0)/kBTc ? 1.6, somewhat smaller than the BCS value of 1.764. The relationship of the heat capacity jump at Tc and the penetration depth measurement to the anisotropy in the s-wave gap is discussed.

  10. EIS-0455: Genesis Solar Energy Project in Riverside County, CA | Department

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

    of Energy 5: Genesis Solar Energy Project in Riverside County, CA EIS-0455: Genesis Solar Energy Project in Riverside County, CA December 17, 2010 EIS-0455: Notice of Adoption of an Environmental Impact Statement Genesis Solar Energy Project, Riverside County, CA August 27, 2010 EIS-0455: Final Environmental Impact Statement Genesis Solar Energy Project, Riverside County, CA September 1, 2011 EIS-0455: Record of Decision Genesis Solar Energy Project, Riverside County, California

  11. Assessment of LED Technology in Ornamental Post-Top Luminaires. Sacramento, CA

    SciTech Connect (OSTI)

    Tuenge, J. R.; Bryan, M. M.; Bisbee, D. A.

    2011-12-01

    GATEWAY program report on a demonstration of LED ornamental post-top luminaires in a residential part of Sacramento, CA.

  12. RAPID/Roadmap/5-CA-a | Open Energy Information

    Open Energy Info (EERE)

    facility to utilize the energy, and has been designated capable ofproduction by the State Oil and Gas Supervisor. 5. A well that has been production tested and found by the State...

  13. Pressure induced superconductivity in CaC2 (Journal Article)...

    Office of Scientific and Technical Information (OSTI)

    of Publication: United States Language: English Subject: catalysis (heterogeneous), solar (photovoltaic), phonons, thermoelectric, energy storage (including batteries and...

  14. United States

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

    E-T Global Energy, LLC OE Docket No. EA-381 Order Authorizing Electricity Exports to Mexico Order No. EA-381 June 10, 2011 I. BACKGROUND E-T Global Energy, LLC Order No. EA-381 Exports of electricity from the United States to a foreign country are regulated by the Department of Energy (DOE) pursuant to sections 301(b) and 402(f) of the Department ofEnergy Organization Act (42 U.S.C. 7151(b), 7172(f)) and require authorization under section 202(e) ofthe Federal Power Act (FPA) (16 U.S.C.824a(e))

  15. United States

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

    Tenaslta Power Services Co. OE Docket No. EA-243-A Order Authorizing Electricity Exports to Canada Order No. EA-243-A March 1,2007 Tenaska Power Services Co. Order No. EA-243-A I. BACKGROUND Exports of elcctricity from the United States to a foreign country are regulated by the Department of Energy (DOE) pursuant to sections 30 I(b) and 402(f) of the Departrncnt of' Energy Organizatio~l Act (42 U, S.C. 7 15 1 (b), 7 1 72Cf)) and rcquirc authorization under section 202(e) of the Federal Power Act

  16. United States

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

    TexMex Energy, LLC OE Docket No. EA-294-A Order Authorizing Electricity Exports to Mexico Order No. EA-294-A February 22, 2007 TexMex Energy, LLC Order No. EA-294-A I. BACKGROUND Exports of electricity from the United States to a foreign count~y are regulated by the Department of Energy (DOE) pursuant to sections 301(b) and 402(f) of the Department of Energy Organization Act (42 U.S.C. 7 15 1 (b), 71 72(f)) and require authorization under section 202(e) of the Federal Power Act (FPA) (16

  17. United States

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

    CSW Power Marketing OE Docket No. EA-3 1 8 Order Authorizing Electricity Exports to Mexico Order No. EA-3 18 February 22,2007 CSW Power Marketing Order No. EA-318 I. BACKGROUND Exports of electricity from the United States to a foreign country are regulated by the Department of Energy (DOE) pursuant to sections 30l(b) and 402(f) of the Department of Energy Organization Act (42 U.S.C. 7 1 5 1 (b), 7 1 72(f)) and require authorization under section 202(e) of the Federal Power Act (FPA) (16

  18. State Overview

    Energy Savers [EERE]

    PAGE | 1 Produced by Department of Energy (DOE), Office of Electricity Delivery & Energy Reliability (OE) State Overview Population: 0.63 million (<1% total U.S.) Housing Units: 0.32 million (<1% total U.S.) Business Establishments: 0.02 million (<1% total U.S.) Annual Energy Consumption Electric Power: 5.5 TWh (<1% total U.S.) Coal: 0 MSTN (0% total U.S.) Natural Gas: 392 Bcf (2% total U.S.) Motor Gasoline: 7,800 Mbarrels (<1% total U.S.) Distillate Fuel: 3,900 Mbarrels

  19. States Government

    Office of Legacy Management (LM)

    ,.' &I ,J?5.8 = , sr; i&L:E%, 7-e;, iB 1 L Unitbd ' States Government ma.morandum DATE: $I$! 24 ml1 Department of Energy y;;;z EM-421 .- Elimination of the Landis Machine Company site SVWECT: The File TO: I have reviewed the attached site summary and elimination recommendation for the Landis Machine Company site in Waynesboro, Pennsylvania. I have determined that there is little likelihood of radioactive contamination at this site. Based' on the above, the Landis Machine Company site is

  20. United States

    Office of Environmental Management (EM)

    E-T Global Energy, LLC OE Docket No. EA-381 Order Authorizing Electricity Exports to Mexico Order No. EA-381 June 10, 2011 I. BACKGROUND E-T Global Energy, LLC Order No. EA-381 Exports of electricity from the United States to a foreign country are regulated by the Department of Energy (DOE) pursuant to sections 301(b) and 402(f) of the Department ofEnergy Organization Act (42 U.S.C. 7151(b), 7172(f)) and require authorization under section 202(e) ofthe Federal Power Act (FPA) (16 U.S.C.824a(e))

  1. Fuel Cell Power Plants Biofuel Case Study - Tulare, CA

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

    clean Fuel Cell Power Plants Biofuel Case Study - Tulare, CA DOE-NREL Workshop Golden, CO June 11-13, 2012 FuelCell Energy, the FuelCell Energy logo, Direct FuelCell and "DFC" are all registered trademarks (®) of FuelCell Energy, Inc. Integrated Fuel Cell Company 2 Manufacture Sell (direct & via partners) Install Services 1.4 MW plant at a municipal building 2.4 MW plant owned by an Independent power producer 600 kW plant at a food processor 11.2 MW plant - largest fuel cell park

  2. Otay Mesa, CA Liquefied Natural Gas Exports (Million Cubic Feet)

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

    (Million Cubic Feet) Otay Mesa, CA Liquefied Natural Gas Exports (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2013 3 5 2014 6 7 7 8 7 7 9 8 9 8 9 6 2015 8 7 8 8 8 9 9 7 7 7 5 5 2016 6 8 7 6 7 6 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 08/31/2016 Next Release Date: 09/30/2016 Referring Pages: U.S.

  3. CA CAIOlf Mr. Andrew Wallo. III, NE-23

    Office of Legacy Management (LM)

    kire 7900. 955 L*E,,fa,u PLUG S. W.. Washin@ on. D.C. 20024-2174, Tekphme: (202) 488-6000 7117-03.87.cdy.43 23 September 1987 CA CAIOlf Mr. Andrew Wallo. III, NE-23 Division of Facility & Site Decommissioning Projects U.S. Department of Energy Germantown, Maryland 20545 CT.05 FL .0-o/ lti.Ob id.Or Dear Mr. Wallo: In/. O-01 flA.05 ELIMINATION RECOMMENDATION -- COLLEGES AND UNIVERSITIES Mbj.o-03 I4 v.o+ The attached elimination recommendation was prepared in accordance ML.o= with your

  4. CA M r. Andrew Wallo, III, NE-23

    Office of Legacy Management (LM)

    i900,9SS L%nfam Phm, S. W.. Washington. D.C. 20024.2174, Tlkphme: (20.7) 4S.S-M)o 7117-03.87.cdy.43 23 September 1987 CA M r. Andrew Wallo, III, NE-23 Division of Facility & Site Decommissioning Projects U.S. Department of Energy Germantown, Maryland 20545 Dear M r. Wallo: ELIMINATION RECOMMENDATION -- COLLEGES AND UNIVERSITIES I - The attached elimination recommendation was prepared in accordance M1.oS with your suggestion during our meeting on 22 September. The recommendation nO.O-02

  5. CA M r. Andrew Wallo, III. NE-23

    Office of Legacy Management (LM)

    i5W 95.5 L' E&nt plom. S. W.:. Washingr on. D.C. ZOOX2i74, Tekphm: (202) 488-6OGb 7II7-03.87.cdy.43 23 September 1987. Ii CA M r. Andrew Wallo, III. NE-23 Division of Facility & Site Decommissioning Projects U.S. Department of Energy Germantown, Maryland 20545 Dear M r. Wallo: ELIMINATION RECOMMENDATION -- COLLEGES AND UNIVERSITIES pqq.0' 05 PI ;p.03- The attached elimination recommendation was prepared in accordance ,I ML.05 with your suggestion during our meeting on 22 September. The

  6. A limited role for carbonic anhydrase in C4 photosynthesis as revealed by a ca1ca2 double mutant in maize.

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

    Studer, Anthony J.; Gandin, Anthony; Kolbe, Allison R.; Wang, Lin; Cousins, Asaph B.; Brutnell, Thomas P.

    2014-04-04

    Carbonic anhydrase (CA) catalyzes the first biochemical step of the carbon concentrating mechanism of C4 plants, and in C4 monocots, it has been suggested that CA activity is near limiting for photosynthesis. Here, we test this hypothesis through the characterization of transposon induced mutant alleles of Ca1 and Ca2 in Zea mays. In addition, these two isoforms account for more than 85% of the CA transcript pool. A significant change in isotopic discrimination is observed in mutant plants, which have as little as 3% of wild-type CA activity, but surprisingly, photosynthesis is not reduced under current or elevated pCO2. However,more » growth and rates of photosynthesis under sub-ambient pCO2 are significantly impaired in the mutants. These findings suggest, that while CA is not limiting for C4 photosynthesis in Z. mays at current pCO2, it likely maintains high rates of photosynthesis when CO2 availability is reduced. Current atmospheric CO2 levels now exceed 400 ppm (~40.53 Pa) and contrast the low CO2 partial pressure (pCO2) conditions under which C4 plants expanded their range ~10 million years ago when the global atmospheric CO2 was below 300 ppm (~30.40 Pa). Thus, as CO2 levels continue to rise, selective pressures for high levels of CA may be limited to arid climates where stomatal closure reduces CO2 availability to the leaf.« less

  7. State Total

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

    State Total Percent of U.S. total Alabama 482 0.0% Alaska 81 0.0% Arizona 194,476 3.3% Arkansas 336 0.0% California 3,163,120 53.0% Colorado 47,240 0.8% Connecticut 50,745 0.9% Delaware 6,600 0.1% District of Columbia 751 0.0% Florida 18,593 0.3% Georgia 47,660 0.8% Hawaii 78,329 1.3% Illinois 5,795 0.1% Indiana 37,016 0.6% Iowa 14,281 0.2% Kansas 1,809 0.0% Kentucky 520 0.0% Louisiana 12,147 0.2% Maine 1,296 0.0% Maryland 63,077 1.1% Massachusetts 157,415 2.6% Michigan 4,210 0.1% Minnesota

  8. Results from the First {sup 249}Cf + {sup 48}Ca Experiment

    DOE R&D Accomplishments [OSTI]

    Oganessian, Y. T.; Utyonkov, V. K.; Lobanov, Y. V.; Abdullin, F. S.; Polyakov, A. N.; Shirokovsky, I. V.; Tsyganov, Y. S.; Mezentsev, A. N.; Iliev, S.; Subbotin, V. G.; Sukhov, A. M.; Ivanov, O. V.; Voinov, A. A.; Subotic, K.; Zagrebaev, V. I.; Itkis, M. G.; Moody, K. J.; Wild, J. F.; Stoyer, M. A.; Stoyer, N. J.; Laue, C. A.; Shaughnessy, D. A.; Patin, J. B.; Lougheed, R. W.

    2003-02-03

    The present paper reports the results of an attempt aimed at the synthesis of element 118 in the reaction {sup 249}Cf({sup 48}Ca,3n){sup 294}118. The experiment was performed employing the Dubna Gas-filled Recoil Separator and the U400 heavy-ion cyclotron at FLNR, JINR, Dubna. In the course of a 2300-hour irradiation of an enriched {sup 249}Cf target (0.23 mg/cm{sup 2}) with a beam of 245-MeV {sup 48}Ca ions, we accumulated a total beam dose of 2.5 x 10{sup 19} ions. We detected two events that may be attributed to the formation and decay of nuclei with Z=118. For one event, we observed a decay chain of two correlated {alpha}-decays with corresponding energies and correlation times of E{sub {alpha}1} = 11.65 {+-} 0.06 MeV, t{sub {alpha}1} = 2.55 ms and E{sub {alpha}2} = 10.71 {+-} 0.17 MeV, t{sub {alpha}2} = 42.1 ms and, finally, a spontaneous fission with the sum of the kinetic energies of the fission fragments E{sub tot} = 207 MeV (TKE {approx} 230 MeV) and t{sub SF} = 0.52 s. In the second event chain, the recoil nucleus decayed into two fission fragments with E{sub tot} = 223 MeV (TKE {approx} 245 MeV) 3.16 ms later, without intervening {alpha} decays. The probabilities that these events were caused by the chance correlations of unrelated signals are negligible. Both events were observed at an excitation energy of the compound nucleus {sup 297}118 of E* = 30.0 {+-} 2.4 MeV, close to the expected maximum of the 3n-evaporation channel. The relationship between the decay energy Q{sub {alpha}} and decay period T{sub {alpha}} shows that sequential {alpha}-transitions in the first event correspond to the decay chain with Z = 118{_}116{_}114. Decay characteristics of the newly observed nuclides are compared with radioactive decay properties of the even-even isotopes with Z = 116, 114 and 112 previously produced in the reactions {sup 244}Pu, {sup 248}Cm + {sup 48}Ca and calculations made in various nuclear models.

  9. Cationic disorder and Mn{sup 3+}/Mn{sup 4+} charge ordering in the B? and B? sites of Ca{sub 3}Mn{sub 2}NbO{sub 9} perovskite: a comparison with Ca{sub 3}Mn{sub 2}WO{sub 9}

    SciTech Connect (OSTI)

    Lpez, C.A.; Saleta, M.E.; Pedregosa, J.C.; Snchez, R.D.; Alonso, J.A.; and others

    2014-02-15

    We describe the preparation, crystal structure determination, magnetic and transport properties of two novel Mn-containing perovskites, with a different electronic configuration for Mn atoms located in B site. Ca{sub 3}Mn{sup 3+}{sub 2}WO{sub 9} and Ca{sub 3}Mn{sup 3+/4+}{sub 2}NbO{sub 9} were synthesized by standard ceramic procedures; the crystallographic structure was studied from X-ray powder diffraction (XRPD) and neutron powder diffraction (NPD). Both phases exhibit a monoclinic symmetry (S.G.: P2{sub 1}/n); Ca{sub 3}Mn{sub 2}WO{sub 9} presents a long-range ordering over the B sites, whereas Ca{sub 3}Mn{sub 2}NbO{sub 9} is strongly disordered. By in-situ NPD, the temperature evolution of the structure study presents an interesting evolution in the octahedral size (?MnO?) for Ca{sub 3}Mn{sub 2}NbO{sub 9}, driven by a charge ordering effect between Mn{sup 3+} and Mn{sup 4+} atoms, related to the anomaly observed in the transport measurements at T?160 K. Both materials present a magnetic order below T{sub C}=30 K and 40 K for W and Nb materials, respectively. The magneto-transport measurements display non-negligible magnetoresistance properties in the paramagnetic regime. - Graphical abstract: Comparison between the octahedron size and the magnetic behaviour for Ca{sub 3}Mn{sub 2}NbO{sub 9} in the temperature region where the charge and magnetic order occur. Display Omitted - Highlights: Two novel Mn-containing double perovskites were obtained by solid-state reactions. Both double perovskites are monoclinic (P2{sub 1}/n) determined by XRPD and NPD. Ca{sub 3}Mn{sub 2}WO{sub 9} contains Mn{sup 3+} while Ca{sub 3}Mn{sub 2}NbO{sub 9} includes mixed-valence cations Mn{sup 3+}/Mn{sup 4+}. Ca{sub 3}Mn{sub 2}NbO{sub 9} presents a charge-ordering effect between Mn{sup 3+} and Mn{sup 4+} evidenced by NPD. The magnetic and transport studies evidenced the charge ordering in Ca{sub 3}Mn{sub 2}NbO{sub 9}.

  10. RAPID/Roadmap/7-CA-d | Open Energy Information

    Open Energy Info (EERE)

    Resources Control Board,the appropriate Air Pollution Control District, Regional Water Quality Control Board, State Department of Transportation Regional Office, other California...

  11. RAPID/Roadmap/8-CA-d | Open Energy Information

    Open Energy Info (EERE)

    Control Board, the appropriate Air Pollution Control District, Regional Water Quality Control Board, State Department of Transportation Regional Office, other California...

  12. RAPID/Roadmap/19-CA-b | Open Energy Information

    Open Energy Info (EERE)

    for appropriating surface water in California. The California State Water Resources Control Board (SWRCB) has complete authority in administering the permit process. Developers...

  13. Nanoscale coherent intergrowths in a crystal ofLa?.?Ca?...

    Office of Scientific and Technical Information (OSTI)

    1 ; Tranquada, John M. 1 ; Billinge, Simon J. L. 2 + Show Author Affiliations Brookhaven National Lab. (BNL), Upton, NY (United States) Brookhaven National Lab. (BNL),...

  14. Otay Mesa, CA Natural Gas Exports to Mexico

    Gasoline and Diesel Fuel Update (EIA)

    (Million Cubic Feet) Otay Mesa, CA Liquefied Natural Gas Exports (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2013 3 5 2014 6 7 7 8 7 7 9 8 9 8 9 6 2015 8 7 8 8 8 9 9 7 7 7 5 5 2016 6 8 7 6 7 6 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 08/31/2016 Next Release Date: 09/30/2016 Referring Pages: U.S. Cubic Feet)

    Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6

  15. Nucleation of metastable aragonite CaCO3 in seawater

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

    Sun, Wenhao; Jayaraman, Saivenkataraman; Chen, Wei; Persson, Kristin A.; Ceder, Gerbrand

    2015-03-04

    Predicting the conditions in which a compound adopts a metastable structure when it crystallizes out of solution is an unsolved and fundamental problem in materials synthesis, and one which, if understood and harnessed, could enable the rational design of synthesis pathways toward or away from metastable structures. Crystallization of metastable phases is particularly accessible via low-temperature solution-based routes, such as chimie douce and hydrothermal synthesis, but although the chemistry of the solution plays a crucial role in governing which polymorph forms, how it does so is poorly understood. Here, we demonstrate an ab initio technique to quantify thermodynamic parameters ofmoresurfaces and bulks in equilibrium with an aqueous environment, enabling the calculation of nucleation barriers of competing polymorphs as a function of solution chemistry, thereby predicting the solution conditions governing polymorph selection. We apply this approach to resolve the long-standing calcitearagonite problemthe observation that calcium carbonate precipitates as the metastable aragonite polymorph in marine environments, rather than the stable phase calcitewhich is of tremendous relevance to biomineralization, carbon sequestration, paleogeochemistry, and the vulnerability of marine life to ocean acidification. We identify a direct relationship between the calcite surface energy and solution MgCa ion concentrations, showing that the calcite nucleation barrier surpasses that of metastable aragonite in solutions with Mg:Ca ratios consistent with modern seawater, allowing aragonite to dominate the kinetics of nucleation. The ability to quantify how solution parameters distinguish between polymorphs marks an important step toward the ab initio prediction of materials synthesis pathways in solution.less

  16. Nucleation of metastable aragonite CaCO3 in seawater

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

    Sun, Wenhao; Jayaraman, Saivenkataraman; Chen, Wei; Persson, Kristin A.; Ceder, Gerbrand

    2015-03-04

    Predicting the conditions in which a compound adopts a metastable structure when it crystallizes out of solution is an unsolved and fundamental problem in materials synthesis, and one which, if understood and harnessed, could enable the rational design of synthesis pathways toward or away from metastable structures. Crystallization of metastable phases is particularly accessible via low-temperature solution-based routes, such as chimie douce and hydrothermal synthesis, but although the chemistry of the solution plays a crucial role in governing which polymorph forms, how it does so is poorly understood. Here, we demonstrate an ab initio technique to quantify thermodynamic parameters ofmore » surfaces and bulks in equilibrium with an aqueous environment, enabling the calculation of nucleation barriers of competing polymorphs as a function of solution chemistry, thereby predicting the solution conditions governing polymorph selection. We apply this approach to resolve the long-standing “calcite–aragonite problem”––the observation that calcium carbonate precipitates as the metastable aragonite polymorph in marine environments, rather than the stable phase calcite––which is of tremendous relevance to biomineralization, carbon sequestration, paleogeochemistry, and the vulnerability of marine life to ocean acidification. We identify a direct relationship between the calcite surface energy and solution Mg–Ca ion concentrations, showing that the calcite nucleation barrier surpasses that of metastable aragonite in solutions with Mg:Ca ratios consistent with modern seawater, allowing aragonite to dominate the kinetics of nucleation. Our ability to quantify how solution parameters distinguish between polymorphs marks an important step toward the ab initio prediction of materials synthesis pathways in solution.« less

  17. Influence of rare-earth elements doping on thermoelectric properties of Ca{sub 0.98}Dy{sub 0.02}MnO{sub 3} at high temperature

    SciTech Connect (OSTI)

    Zhu, Yuanhu Wang, Chunlei; Su, Wenbin; Liu, Jian; Li, Jichao; Zhang, Xinhua; Mei, Liangmo

    2015-05-15

    Ca{sub 0.98}Dy{sub 0.02}MnO{sub 3} and Ca{sub 0.96}Dy{sub 0.02}Re{sub 0.02}MnO{sub 3} (Re=La, Pr, Sm, Eu, Ho, and Yb) have been synthesized by the solid state reaction method. Samples with relative densities all over 96% have been obtained. Thermoelectric properties are evaluated between 300 and 1000 K. The electrical resistivity shows a typical metal-like conductivity behavior, and at high temperature, 973 K, decreases from 36.1 mΩ cm for Ca{sub 0.98}Dy{sub 0.02}MnO{sub 3} to 8.6 mΩ cm for Ca{sub 0.96}Dy{sub 0.02}Yb{sub 0.02}MnO{sub 3}. Both the absolute values of Seebeck coefficient and thermal conductivity are reduced by the introduction of second rare-earth element. The highest power factor of 415 μW/(K{sup 2}m) is obtained for Ca{sub 0.96}Dy{sub 0.02}Yb{sub 0.02}MnO{sub 3} sample, resulting in the highest dimensionless figure of merit (ZT) 0.25 at 973 K. This value shows an improvement of 144% compared with that of Ca{sub 0.98}Dy{sub 0.02}MnO{sub 3} ceramics at the same temperature. - Graphical abstract: The Ca{sub 0.96}Dy{sub 0.02}Re{sub 0.02}MnO{sub 3} (Re=La, Pr, …, Yb) were prepared by solid state reaction. Highest ZT value obtained is 0.25 at 973 K for Re=Yb, which shows 144% improvement compared with Ca{sub 0.98}Dy{sub 0.02}MnO{sub 3}. - Highlights: • Ca{sub 0.96}Dy{sub 0.02}Re{sub 0.02}MnO{sub 3} (Re=La, Pr, …, Yb) are produced by solid state reaction. • Lowest resistivity is obtained due to the highest carrier mobility for Re=Yb. • Highest power factor obtained is 415 μW/(K{sup 2}m) at 973 K for Re=Yb. • Highest ZT value obtained is 0.25 at 973 K for Ca{sub 0.96}Dy{sub 0.02}Yb{sub 0.02}MnO{sub 3} sample.

  18. EIS-0439: Rice Solar Energy Project in Riverside County, CA | Department of

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

    Energy 9: Rice Solar Energy Project in Riverside County, CA EIS-0439: Rice Solar Energy Project in Riverside County, CA March 29, 2010 EIS-0439: Notice of Intent to Prepare an Environmental Impact Statement Proposed Construction and Operation of the Rice Solar Energy Project, Riverside County, CA October 22, 2010 EIS-0439: EPA Notice of Availability of the Draft Environmental Impact Statement Rice Solar Energy Project, Riverside County, California October 22, 2010 EIS-0439: Draft

  19. Density functional study of CaN mono and bilayer on Cu(001)

    SciTech Connect (OSTI)

    Zahedifar, Maedeh; Hashemifar, S. Javad Akbarzadeh, Hadi

    2014-01-15

    Density functional - pseudopotential calculations are performed to provide first-principles insights into magnetic behaviour of bulk CaN and CaN monolayers on Cu(001) in the rock-salt (RS) and zinc-blende (ZB) structures. Our results indicate that both RS- and ZB-CaN exhibit half-metallic ferromagnetism originated from the incomplete 2p shell of the nitrogen ion. In contrast to the bulk CaN, the CaN monolayers on Cu(001) generally favor ZB structure. We argue that the more stable ZB-CaN thin films on Cu(001) are nonmagnetic, because of strong Cu-N bonding at the interface, while the less stable Ca terminated ZB-CaN thin films exhibit half-metallic ferromagnetism. The transition path between the high energy ferromagnetic and the stable nonmagnetic configurations of the ZB-CaN monolayer on Cu(001) are studied by using the nudged elastic band method. We observe a two stages transition and an activation barrier of about 1.18 eV in the minimum energy path of this transition.

  20. MHK Projects/Wavemill Energy Cape Breton Island NS CA | Open...

    Open Energy Info (EERE)

    Wavemill Energy Cape Breton Island NS CA < MHK Projects Jump to: navigation, search << Return to the MHK database homepage Loading map... "minzoom":false,"mappingservice":"googlem...

  1. Method of forming superconducting Tl-Ba-Ca-Cu-O films

    DOE Patents [OSTI]

    Wessels, Bruce W.; Marks, Tobin J.; Richeson, Darrin S.; Tonge, Lauren M.; Zhang, Jiming

    1993-01-01

    A method of forming a superconducting Tl-Ba-Ca-Cu-O film is disclosed, which comprises depositing a Ba-Ca-Cu-O film on a substrate by MOCVD, annealing the deposited film and heat-treating the annealed film in a closed circular vessel with TlBa.sub.2 Ca.sub.2 Cu.sub.3 O.sub.x and cooling to form said superconducting film of TlO.sub.m Ba.sub.2 Ca.sub.n-1 Cu.sub.n O.sub.2n+2, wherein m=1,2 and n=1,2,3.

  2. Enhancement of Ca(OH){sub 2}/fly ash sorbent for the dry-desulfurization process

    SciTech Connect (OSTI)

    Mitsuo Yamamoto; Satoshi Komaki; Daichi Nakajima; Norihiko Matsushima; Dan Liu; Masateru Nishioka; Masayoshi Sadakata

    2006-10-15

    Ca(OH){sub 2}/fly ash sorbent has been studied as an effective method for SO{sub 2} removal. The effect of iron and other species for enhancing the ability of Ca(OH){sub 2}/fly ash sorbent was investigated in this study. At first, Fe(NO{sub 3}){sub 3} was added in the preparation of the sorbent, and TG analysis was carried out. The Ca utilization rate over a period of 90 min was about 10% greater than that for Ca(OH){sub 2}/fly ash sorbent. However, it was found that iron is not effective for enhancing the ability of Ca(OH){sub 2}/fly ash sorbent but that NO{sub 3}{sup -} was the most effective factor to enhance it. The mechanism of enhancing the Ca utilization rate was also investigated, and it was found that Ca(NO{sub 3})2 was produced in the sorbent and reacted with SO{sub 2}, so that the reaction Ca(NO{sub 3}){sub 2} + SO{sub 2} {yields} CaSO{sub 4} + 2NO + O{sub 2} proceeded. 12 refs., 6 figs., 3 tabs.

  3. The First Ca-ion Rechargeable Battery - Joint Center for Energy...

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

    November 24, 2015, Research Highlights The First Ca-ion Rechargeable Battery Schematic ... We have demonstrated the first ever rechargeable battery utilizing calcium as the working ...

  4. V-006: CA ARCserve Backup Flaws Let Remote Users Execute Arbitrary Code and Deny Service

    Broader source: Energy.gov [DOE]

    Two vulnerabilities were reported in CA ARCserve Backup. A remote user can execute arbitrary code on the target system. A remote user can cause denial of service conditions.

  5. Impact of symmetry on the ferroelectric properties of CaTiO3...

    Office of Scientific and Technical Information (OSTI)

    properties of CaTiO3 thin films Citation Details ... Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA Department of Materials Science ...

  6. File:USDA-CE-Production-GIFmaps-CA.pdf | Open Energy Information

    Open Energy Info (EERE)

    CA.pdf Jump to: navigation, search File File history File usage California Ethanol Plant Locations Size of this preview: 463 599 pixels. Other resolution: 464 600 pixels....

  7. PCR Bartsch, Michael S. [Sandia National Lab. (SNL-CA), Livermore...

    Office of Scientific and Technical Information (OSTI)

    short tandem repeat (STR) amplification, and second strand cDNA synthesis. Public Library of Science Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA...

  8. Sedimentology and diagenesis of the Zechstein Ca2 carbonate, Late Permian, northwest Germany

    SciTech Connect (OSTI)

    Strohmenger, C.; Rockenbauch, K. ); Love, K.M.; Mitchell, J.C. )

    1993-09-01

    Carbonates of the second Zechstein cycle, the Stassfurt Carbonate (Ca2), constitute north Germany's most prolific carbonate gas play. The underlying Werra Anhydrite (A1) of the first Zechstein cycle and the overlying Basal Anhydrite (A2) of the second Zechstein cycle enclosed the reservoir. An erosional sequence boundary present at the top of the A1 sulfate platform separates the A1 from the overlying Ca2 carbonate platform. Ca2 thickness ranges from 30 to 80 m on the platform, 40 to 250 m on the slope, and 10 to 40 m in the basin. Following flooding of the underlying A1 sulfate platform (Ca2 maximum flooding), Ca2 shallow-water carbonates prograded basinward. Platform, upper slope, middle slope, and lower slope facies are recognized and are subdivided into 27 subfacies. Systematic trends in facies distribution are apparent on depositional dip-oriented well log cross sections. Trends in vertical succession of subfacies types, along with the good correlation between Ca2 facies and A1 thickness, enable mapping of the updip and downdip limits of the facies. Diagenesis is important in determining Ca2 reservoir quality. Reservoir rock is typically fair to good where it is dolomite. Early calcitization (dedolomitization) of the Ca2 yields poor to non-reservoir rocks. Although calcitization in general increases basinward, lateral prediction of mineralogy within individual Ca2 facies is difficult. A multivariate statistical investigation has been initiated to determine parameters, which are important in predicting trends in calcite distribution.

  9. Municipal Consortium LED Street Lighting Workshop: April 19–20, Los Angeles, CA

    Broader source: Energy.gov [DOE]

    Workshop Location: The Sheraton Los Angeles Downtown Hotel, 711 Hope Street, Los Angeles, CA 90017City Partner: City of Los Angeles Bureau of Street LightingCost: $175

  10. Engineering Evaluation/Cost Analysis (EE/CA) for Decommissioning of TAN-607 Hot Shop Area

    SciTech Connect (OSTI)

    J. P. Floerke

    2007-02-05

    will be protective of human health and the environment. Decommissioning the TAN-607 Hot Shop Area is consistent with the joint DOE and U.S. Environmental Protection Agency (EPA) Policy on Decommissioning of Department of Energy Facilities Under the Comprehensive Environmental Response, Compensation and Liability Act, which establishes the CERCLA NTCRA process as the preferred approach for decommissioning surplus DOE facilities. Under this policy, a NTCRA may be taken when DOE determines that the action will prevent, minimize, stabilize, or eliminate a risk to human health and/or the environment. When DOE determines that a CERCLA NTCRA is necessary, DOE is authorized to evaluate, select, and implement the removal action that DOE determines is most appropriate to address the potential risk posed by the release or threat of release. This action is taken in accordance with applicable authorities and in conjunction with EPA and the State of Idaho pursuant to Section 5.3 of the Federal Facility Agreement and Consent Order. In keeping with the joint policy, this engineering evaluation/cost analysis (EE/CA) was developed in accordance with CERCLA as amended by the ''Superfund Amendments and Reauthorization Act of 1986'' and in accordance with the ''National Oil and Hazardous Substances Pollution Contingency Plan.'' This EE/CA is consistent with the remedial action objectives (RAOs) of the Final Record of Decision, Test Area North, Operable Unit 1-10 and supports the overall remediation goals established through the Federal Facility Agreement and Consent Order for Waste Area Group 1. Waste Area Group 1 is located at TAN.