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Sample records for file transfer electronic

  1. Electron Transfer

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

    3 Pierre Kennepohl1,2 and Edward Solomon1* 1Department of Chemistry, Stanford University, Stanford, CA 94305 Electron transfer, or the act of moving an electron from one place to another, is amongst the simplest of chemical processes, yet certainly one of the most critical. The process of efficiently and controllably moving electrons around is one of the primary regulation mechanisms in biology. Without stringent control of electrons in living organisms, life could simply not exist. For example,

  2. An examination of electronic file transfer between host and microcomputers for the AMPMODNET/AIMNET (Army Material Plan Modernization Network/Acquisition Information Management Network) classified network environment

    SciTech Connect (OSTI)

    Hake, K.A.

    1990-11-01

    This report presents the results of investigation and testing conducted by Oak Ridge National Laboratory (ORNL) for the Project Manager -- Acquisition Information Management (PM-AIM), and the United States Army Materiel Command Headquarters (HQ-AMC). It concerns the establishment of file transfer capabilities on the Army Materiel Plan Modernization (AMPMOD) classified computer system. The discussion provides a general context for micro-to-mainframe connectivity and focuses specifically upon two possible solutions for file transfer capabilities. The second section of this report contains a statement of the problem to be examined, a brief description of the institutional setting of the investigation, and a concise declaration of purpose. The third section lays a conceptual foundation for micro-to-mainframe connectivity and provides a more detailed description of the AMPMOD computing environment. It gives emphasis to the generalized International Business Machines, Inc. (IBM) standard of connectivity because of the predominance of this vendor in the AMPMOD computing environment. The fourth section discusses two test cases as possible solutions for file transfer. The first solution used is the IBM 3270 Control Program telecommunications and terminal emulation software. A version of this software was available on all the IBM Tempest Personal Computer 3s. The second solution used is Distributed Office Support System host electronic mail software with Personal Services/Personal Computer microcomputer e-mail software running with IBM 3270 Workstation Program for terminal emulation. Test conditions and results are presented for both test cases. The fifth section provides a summary of findings for the two possible solutions tested for AMPMOD file transfer. The report concludes with observations on current AMPMOD understanding of file transfer and includes recommendations for future consideration by the sponsor.

  3. File and Directory Management Tool: view, organize, transfer files () |

    Office of Scientific and Technical Information (OSTI)

    SciTech Connect File and Directory Management Tool: view, organize, transfer files Citation Details Software Request Title: File and Directory Management Tool: view, organize, transfer files Not Specified Authors: Smith, N. G. ; O'Neill, N. J. ; Spencer, P. N. ; Long, J. W. Publication Date: 2008-03-14 OSTI Identifier: 1231070 Report Number(s): Hopper V2.0; 002218MLTPL00 LLNL-CODE-403380 DOE Contract Number: AC52-07NA27344 Software Revision: 00 Software Package Number: 002218 Software

  4. EPA to Require Electronic Filing of EISs

    Broader source: Energy.gov [DOE]

    Starting October 1, 2012, all Federal agencies must file their draft and final EISs electronically, pursuant to amended EIS Filing System Guidelines issued by the Environmental Protection Agency (EPA) (77 FR 51530; August 24, 2012).

  5. File Transfer Protocol (FTP) Site Instructions | Open Energy...

    Open Energy Info (EERE)

    Transfer Protocol (FTP) Site Instructions Jump to: navigation, search OpenEI Reference LibraryAdd to library PermittingRegulatory Guidance - Instructions: File Transfer Protocol...

  6. Globus Online File Transfer - NERSC Tutorial - March 8, 2011

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

    globusonline.org globus online Reliable File Transfer. No IT Required. NERSC File Transfer Tutorial Steve Tuecke Deputy Director, Computation Institute University of Chicago & Argonne National Laboratory 2 globusonline.org Globus Toolkit Build the Grid Components for building custom grid solutions globustoolkit.org Globus Online Use the Grid Reliable file transfer Software-as-a-Service globusonline.org Some context 3 globusonline.org Globus Online In Action 28.6 Terabytes 31,000 files 56h

  7. File and Directory Management Tool: view, organize, transfer...

    Office of Scientific and Technical Information (OSTI)

    Title: File and Directory Management Tool: view, organize, transfer files Not Specified Authors: Smith, N. G. ; O'Neill, N. J. ; Spencer, P. N. ; Long, J. W. Publication Date: ...

  8. Drinking Water and Groundwater Protection Division File Transfer...

    Open Energy Info (EERE)

    File Transfer Protocol (FTP) Site Instructions Jump to: navigation, search OpenEI Reference LibraryAdd to library PermittingRegulatory Guidance - Instructions: Drinking Water and...

  9. File Transfer Protocol Guard Version 1.5

    Energy Science and Technology Software Center (OSTI)

    1999-01-13

    The FTP Guard provides a means for securely transferring files from an unclassified network to a classified network. Files are moved using the FTP protocol. To a user, the FTP Guard appears to be an FTP proxy server. The FTP Guard does not move files from the classified network to the unclassified network.

  10. Electronic Coupling Dependence of Ultrafast Interfacial Electron Transfer

    Office of Scientific and Technical Information (OSTI)

    on Nanocrystalline Thin Films and Single Crystal (Technical Report) | SciTech Connect Electronic Coupling Dependence of Ultrafast Interfacial Electron Transfer on Nanocrystalline Thin Films and Single Crystal Citation Details In-Document Search Title: Electronic Coupling Dependence of Ultrafast Interfacial Electron Transfer on Nanocrystalline Thin Films and Single Crystal The long-term goal of the proposed research is to understand electron transfer dynamics in nanoparticle/liquid interface.

  11. Photo-induced electron transfer method

    DOE Patents [OSTI]

    Wohlgemuth, R.; Calvin, M.

    1984-01-24

    The efficiency of photo-induced electron transfer reactions is increased and the back transfer of electrons in such reactions is greatly reduced when a photo-sensitizer zinc porphyrin-surfactant and an electron donor manganese porphyrin-surfactant are admixed into phospholipid membranes. The phospholipids comprising said membranes are selected from phospholipids whose head portions are negatively charged. Said membranes are contacted with an aqueous medium in which an essentially neutral viologen electron acceptor is admixed. Catalysts capable of transferring electrons from reduced viologen electron acceptor to hydrogen to produce elemental hydrogen are also included in the aqueous medium. An oxidizable olefin is also admixed in the phospholipid for the purpose of combining with oxygen that coordinates with oxidized electron donor manganese porphyrin-surfactant.

  12. Photo-induced electron transfer method

    DOE Patents [OSTI]

    Wohlgemuth, Roland; Calvin, Melvin

    1984-01-01

    The efficiency of photo-induced electron transfer reactions is increased and the back transfer of electrons in such reactions is greatly reduced when a photo-sensitizer zinc porphyrin-surfactant and an electron donor manganese porphyrin-surfactant are admixed into phospho-lipid membranes. The phospholipids comprising said membranes are selected from phospholipids whose head portions are negatively charged. Said membranes are contacted with an aqueous medium in which an essentially neutral viologen electron acceptor is admixed. Catalysts capable of transfering electrons from reduced viologen electron acceptor to hydrogen to produce elemental hydrogen are also included in the aqueous medium. An oxidizable olefin is also admixed in the phospholipid for the purpose of combining with oxygen that coordinates with oxidized electron donor manganese porphyrin-surfactant.

  13. Reaction coordinates for electron transfer reactions

    SciTech Connect (OSTI)

    Rasaiah, Jayendran C.; Zhu Jianjun

    2008-12-07

    The polarization fluctuation and energy gap formulations of the reaction coordinate for outer sphere electron transfer are linearly related to the constant energy constraint Lagrangian multiplier m in Marcus' theory of electron transfer. The quadratic dependence of the free energies of the reactant and product intermediates on m and m+1, respectively, leads to similar dependence of the free energies on the reaction coordinates and to the same dependence of the activation energy on the reorganization energy and the standard reaction free energy. Within the approximations of a continuum model of the solvent and linear response of the longitudinal polarization to the electric field in Marcus' theory, both formulations of the reaction coordinate are expected to lead to the same results.

  14. Custody transfer enhanced by electronic billing system

    SciTech Connect (OSTI)

    Knox, R.M.

    1986-10-20

    Transcontinental Gas Pipe Line (TGPL) Corp. engineers have developed an electronic billing system for custody transfer that can reduce the cost of doing business and improve the accuracy of transfer measurements. The system accurately measures gas flow and quality, transmits gas data to a central facility, provides a capability to review the collected data, prepares bills based upon these data, and reduces staffing associated with the data collection and billing process. On-line flow computers are keys to this electronic billing system. These computers, referred to as remote terminal units (RTU's), are currently in service at TGPL at more than 30 locations with 30 more locations due to be on-line within 6 months and an additional 40 locations due within 15 months. These RTU's will be obtaining gas data from metering stations located in New York, New Jersey, Pennsylvania, Maryland, Virginia, North Carolina, Georgia, Louisiana, and Texas.

  15. Microsoft PowerPoint - File Transfer-Turner

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

    Transfer Best Practices David Turner User Services Group NERSC User Group Meeting October 2, 2008 2 Overview * Available tools - ftp, scp, bbcp, "GridFTP", hsihtar * Examples and ...

  16. Structural insights into electron transfer in caa[subscript 3...

    Office of Scientific and Technical Information (OSTI)

    Journal Article: Structural insights into electron transfer in caasubscript 3-type cytochrome oxidase Citation Details In-Document Search Title: Structural insights into electron ...

  17. Quantum tunneling resonant electron transfer process in Lorentzian plasmas

    SciTech Connect (OSTI)

    Hong, Woo-Pyo; Jung, Young-Dae

    2014-08-15

    The quantum tunneling resonant electron transfer process between a positive ion and a neutral atom collision is investigated in nonthermal generalized Lorentzian plasmas. The result shows that the nonthermal effect enhances the resonant electron transfer cross section in Lorentzian plasmas. It is found that the nonthermal effect on the classical resonant electron transfer cross section is more significant than that on the quantum tunneling resonant charge transfer cross section. It is shown that the nonthermal effect on the resonant electron transfer cross section decreases with an increase of the Debye length. In addition, the nonthermal effect on the quantum tunneling resonant electron transfer cross section decreases with increasing collision energy. The variation of nonthermal and plasma shielding effects on the quantum tunneling resonant electron transfer process is also discussed.

  18. Exploring Electron Transfer in Organic Semiconductors | MIT-Harvard Center

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

    for Excitonics Electron Transfer in Organic Semiconductors January 28, 2009 at 3pm/36-428 Troy Van Voorhis Department of Chemistry, Massachusetts Institute of Technology vanvoorhis2_000 abstract: Electron transfer reactions are the centerpiece of artificial photosynthetic complexes, organic LEDs and essentially all of redox chemistry. In particular, electron transfer rates govern the efficiency of exciton formation and dissociation in organic semiconductors. This talk will highlight ongoing

  19. Electronic overfill protection for crude oil transfer

    SciTech Connect (OSTI)

    Kilgore, D.R.; Miles, D.C.

    1995-12-31

    There are many considerations involved in the transfer of crude oil, but the most catastrophic consequences may come as the result of a spill during loading or unloading. The safety and well-being of personnel in the vicinity is of the utmost concern. Should one be fortunate enough that an explosion or fire is not the results of a spill, the one must contend with the dilemma of containment. Preserving environmental integrity is a subject that is high on everyone`s list. The phrase ``reportable spill`` can send chills up and down anyone`s back. The repercussions continue: Ground water contamination; Soil remediation; Regulatory fines and penalties; Litigation. And this is all topped off by the ``black eye`` that the company receives with the perception of the public. For these reasons, and more, the carriers of crude oil are choosing self imposed compliances to reduce the frequency of spills. Electronic Overfill Protection has been modified to meet the specific needs and requirements of the crude oil industry. Here, the authors will examine how this type of system evolved, how it functions, and where it may lead.

  20. FILE

    Office of Legacy Management (LM)

    c&o--L>+ co.o-09 Epq-J+jDU" 1 . o( 5--- 1, "I ' -i, . - -. j s: FILE :3r.jNER is ---.- pas',: Current: -------------- ----- Cwner...

  1. Microsoft Word - Electron transfer.doc

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

    life could simply not exist. For example, photosynthesis and nitrogen fixation (to name but two of the most well-known biochemical activities) are driven by electron...

  2. Rudolph A. Marcus and His Theory of Electron Transfer Reactions

    Office of Scientific and Technical Information (OSTI)

    Rudolph A. Marcus and His Theory of Electron Transfer Reactions Resources with Additional Information * Interviews * Marcus Theory Rudolph A. Marcus Courtesy of Brookhaven National Laboratory Rudolph A. Marcus was awarded the 1992 Nobel Prize in Chemistry "for his contributions to the theory of electron transfer reactions in chemical systems". 'According to Chemistry Chairman Norman Sutin, some of the early definitive tests of Marcus's theoretical work were done ... at [Brookhaven

  3. Electron transfer statistics and thermal fluctuations in molecular junctions

    SciTech Connect (OSTI)

    Goswami, Himangshu Prabal; Harbola, Upendra

    2015-02-28

    We derive analytical expressions for probability distribution function (PDF) for electron transport in a simple model of quantum junction in presence of thermal fluctuations. Our approach is based on the large deviation theory combined with the generating function method. For large number of electrons transferred, the PDF is found to decay exponentially in the tails with different rates due to applied bias. This asymmetry in the PDF is related to the fluctuation theorem. Statistics of fluctuations are analyzed in terms of the Fano factor. Thermal fluctuations play a quantitative role in determining the statistics of electron transfer; they tend to suppress the average current while enhancing the fluctuations in particle transfer. This gives rise to both bunching and antibunching phenomena as determined by the Fano factor. The thermal fluctuations and shot noise compete with each other and determine the net (effective) statistics of particle transfer. Exact analytical expression is obtained for delay time distribution. The optimal values of the delay time between successive electron transfers can be lowered below the corresponding shot noise values by tuning the thermal effects.

  4. Theory of ultrafast heterogeneous electron transfer: Contributions of direct charge transfer excitations to the absorbance

    SciTech Connect (OSTI)

    Wang, Luxia; Willig, Frank; May, Volkhard

    2007-04-07

    Absorption spectra related to heterogeneous electron transfer are analyzed with the focus on direct charge transfer transition from the surface attached molecule into the semiconductor band states. The computations are based on a model of reduced dimensionality with a single intramolecular vibrational coordinate but a complete account for the continuum of conduction band states. The applicability of this model to perylene on TiO{sub 2} has been demonstrated in a series of earlier papers. Here, based on a time-dependent formulation, the absorbance is calculated with the inclusion of charge transfer excitations. A broad parameter set inspired by the perylene TiO{sub 2} systems is considered. In particular, the description generalizes the Fano effect to heterogeneous electron transfer reactions. Preliminary simulations of measured spectra are presented for perylene-catechol attached to TiO{sub 2}.

  5. CORRELATING ELECTRONIC AND VIBRATIONAL MOTIONS IN CHARGE TRANSFER SYSTEMS

    SciTech Connect (OSTI)

    Khalil, Munira

    2014-06-27

    The goal of this research program was to measure coupled electronic and nuclear motions during photoinduced charge transfer processes in transition metal complexes by developing and using novel femtosecond spectroscopies. The scientific highlights and the resulting scientific publications from the DOE supported work are outlined in the technical report.

  6. SF 9424-EFT;Electronic Funds Transfer Agreement

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

    9424-EFT (03-2015) Supersedes (10-2011) Issue ELECTRONIC FUNDS TRANSFER AGREEMENT Email completed form to iSupplier@sandia.gov OR mail to Sandia National Laboratories, Supplier Data Management, MS-1385, PO BOX 5800, Albuquerque, NM 87185-1385. For questions, contact us at: isupplier@sandia.gov. The undersigned Supplier (hereinafter referred to as Supplier) hereby authorizes Sandia Corporation DBA Sandia National Laboratories (hereinafter referred to as Sandia) to make payment for goods and

  7. Electronic Funds Transfer Authorization Form 4/2014

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

    Vendor Information Company Name or DBA: Address: City/State/Zip: Internal Use Only Electronic Funds Transfer Authorization Form I, an authorized signer on the below account, hereby authorize Los Alamos National Laboratory, hereinafter called the Laboratory, to originate Automated Clearinghouse (ACH) credits for invoice payments (vendors), travel reimbursements, small purchase reimbursements and royalty payments (employees). I further authorize the Laboratory to originate ACH debits to this

  8. Hot Electron Transfer from Semiconductor Nanocrystals | MIT-Harvard Center

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

    for Excitonics Hot Electron Transfer from Semiconductor Nanocrystals March 30, 2010 at 3pm/36-428 William A. Tisdale Department of Chemical Engineering and Materials Science University of Minnesota tisdale_002 abstract: In conventional semiconductor solar cells, absorption of photons with energies greater than the semiconductor band gap generate "hot" charge carriers that quickly "cool" before all of their energy can be captured - a process that limits device efficiency.

  9. Comparing the Primary Electron Transfer Process in Organic Photovoltaic

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

    Heterojunctions with Photosynthetic Reaction Centers | MIT-Harvard Center for Excitonics Comparing the Primary Electron Transfer Process in Organic Photovoltaic Heterojunctions with Photosynthetic Reaction Centers October 4, 2011 at 3pm/36-428 Garry Rumbles National Renewable Energy Laboratory (NREL), Univeristy of Colorado, Boulder rumbles002 Abstract: This presentation will focus on some of the fundamental science associated with the rapidly emerging field of organic photovoltaics (OPV).

  10. Transferred metal electrode films for large-area electronic devices...

    Office of Scientific and Technical Information (OSTI)

    We show here that the self-release layer transfer method recently developed for high-quality graphene transfer is also capable of giving high-quality metal thin-film transfers to ...

  11. A stochastic reorganizational bath model for electronic energy transfer

    SciTech Connect (OSTI)

    Fujita, Takatoshi E-mail: aspuru@chemistry.harvard.edu; Huh, Joonsuk; Aspuru-Guzik, Aln E-mail: aspuru@chemistry.harvard.edu

    2014-06-28

    Environmentally induced fluctuations of the optical gap play a crucial role in electronic energy transfer dynamics. One of the simplest approaches to incorporate such fluctuations in energy transfer dynamics is the well known Haken-Strobl-Reineker (HSR) model, in which the energy-gap fluctuation is approximated as white noise. Recently, several groups have employed molecular dynamics simulations and excited-state calculations in conjunction to account for excitation energies thermal fluctuations. On the other hand, since the original work of HSR, many groups have employed stochastic models to simulate the same transfer dynamics. Here, we discuss a rigorous connection between the stochastic and the atomistic bath models. If the phonon bath is treated classically, time evolution of the exciton-phonon system can be described by Ehrenfest dynamics. To establish the relationship between the stochastic and atomistic bath models, we employ a projection operator technique to derive the generalized Langevin equations for the energy-gap fluctuations. The stochastic bath model can be obtained as an approximation of the atomistic Ehrenfest equations via the generalized Langevin approach. Based on this connection, we propose a novel scheme to take account of reorganization effects within the framework of stochastic models. The proposed scheme provides a better description of the population dynamics especially in the regime of strong exciton-phonon coupling. Finally, we discuss the effect of the bath reorganization in the absorption and fluorescence spectra of ideal J-aggregates in terms of the Stokes shifts. We find a simple expression that relates the reorganization contribution to the Stokes shifts the reorganization shift to the ideal or non-ideal exciton delocalization in a J-aggregate. The reorganization shift can be described by three parameters: the monomer reorganization energy, the relaxation time of the optical gap, and the exciton delocalization length. This simple relationship allows one to understand the physical origin of the Stokes shifts in molecular aggregates.

  12. Light-induced electron transfer vs. energy transfer in molecular thin-film systems

    SciTech Connect (OSTI)

    Renschler, C. L.; Faulkner, L. R.

    1980-01-01

    Quenching of fluoranthene (FA) singlets by tetrabromo-o-benzoquinone (TBBQ) and N,N,N',N'-tetramethyl-p-phenylenediamine (TMPD) was studied both in xylene solutions and in spin-cast polystyrene (PS) films. Emphasis was placed on time-resolved fluorescence transients resulting from pulsed excitation. Linear Stern-Volmer plots were obtained for quenching in solution and gave diffusion-controlled rate constants, of 1.45 x 10/sup 10/ M/sup -1/ sec/sup -1/ and 1.53 x 10/sup 10/ M/sup -1/ sec/sup -1/ for TBBQ and TMPD, respectively. TBBQ was found to quench FA singlets in PS over the studied concentration range 12 mM < (TBBQ) < 48 mM, but in its presence FA singlets decayed nonexponentially. The results were interpreted quantitatively in terms of pure Foerster's transfer from FA to TBBQ without diffusion of excitons. The critical transfer radius R/sub 0/ was experimentally determined to be 24.3 A, which is in good agreement with the theoretical value of 23 A calculated from spectral data. Quenching of FA singlets in PS films was found to be independent of FA concentration over a 300 mM to 1200 mM FA concentration range for a constant TBBQ concentration of 24.0 mM. TMPD was only slightly effective as a quencher of FA singlets in PS because it apparently behaves strictly as a contact quencher based on reversible charge transfer. The implications of these results for the design of systems intended to exploit light-induced electron transfer are discussed.

  13. Thermal transfer structures coupling electronics card(s) to coolant-cooled structure(s)

    DOE Patents [OSTI]

    David, Milnes P; Graybill, David P; Iyengar, Madhusudan K; Kamath, Vinod; Kochuparambil, Bejoy J; Parida, Pritish R; Schmidt, Roger R

    2014-12-16

    Cooling apparatuses and coolant-cooled electronic systems are provided which include thermal transfer structures configured to engage with a spring force one or more electronics cards with docking of the electronics card(s) within a respective socket(s) of the electronic system. A thermal transfer structure of the cooling apparatus includes a thermal spreader having a first thermal conduction surface, and a thermally conductive spring assembly coupled to the conduction surface of the thermal spreader and positioned and configured to reside between and physically couple a first surface of an electronics card to the first surface of the thermal spreader with docking of the electronics card within a socket of the electronic system. The thermal transfer structure is, in one embodiment, metallurgically bonded to a coolant-cooled structure and facilitates transfer of heat from the electronics card to coolant flowing through the coolant-cooled structure.

  14. Mimicking the electron transfer chain in photosystem II with a molecular

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

    triad thermodynamically capable of water oxidation Mimicking the electron transfer chain in photosystem II with a molecular triad thermodynamically capable of water oxidation Authors: Megiatto, J. D., Antoniuk-Pablant, A., Sherman, B. D., Kodis, G., Gervaldo, M., Moore, T. A., Moore, A. L., and Gust, D. Title: Mimicking the electron transfer chain in photosystem II with a molecular triad thermodynamically capable of water oxidation Source: Proceedings of the National Academy of Sciences

  15. Mimicking the electron transfer chain in photosystem II with a molecular

    Office of Scientific and Technical Information (OSTI)

    triad thermodynamically capable of water oxidation (Journal Article) | SciTech Connect Mimicking the electron transfer chain in photosystem II with a molecular triad thermodynamically capable of water oxidation Citation Details In-Document Search Title: Mimicking the electron transfer chain in photosystem II with a molecular triad thermodynamically capable of water oxidation Authors: Megiatto Jr., Jackson D. ; Antoniuk-Pablant, Antaeres' ; Sherman, Ben ; Gervaldo, Miguel ; Moore, Thomas A. ;

  16. "Covalent functionalization and electron-transfer properties of vertically

    Office of Scientific and Technical Information (OSTI)

    aligned carbon nanofibers: The importance of edge-plane sites" (Journal Article) | SciTech Connect "Covalent functionalization and electron-transfer properties of vertically aligned carbon nanofibers: The importance of edge-plane sites" Citation Details In-Document Search Title: "Covalent functionalization and electron-transfer properties of vertically aligned carbon nanofibers: The importance of edge-plane sites" The use of covalently bonded molecular layers

  17. Insights into proton-coupled electron transfer mechanisms of electrocatalytic H2 oxidation and production

    SciTech Connect (OSTI)

    Horvath, Samantha; Fernandez, Laura; Soudackov, Alexander V.; Hammes-Schiffer, Sharon

    2012-09-25

    The design of molecular electrocatalysts for H2 oxidation and production is important for the development of alternative renewable energy sources that are abundant, inexpensive, and environmentally benign. Recently nickel-based molecular electrocatalysts with pendant amines that act as proton relays for the nickel center were shown to effectively catalyze H2 oxidation and production. We developed a quantum mechanical approach for studying proton-coupled electron transfer processes in these types of molecular electrocatalysts. This theoretical approach is applied to a nickel-based catalyst in which phosphorous atoms are directly bonded to the nickel center and nitrogen atoms of the ligand rings act as proton relays. The cataly c step of interest involves electron transfer between the nickel complex and the electrode as well as intramolecular proton transfer between the nickel and nitrogen atoms. This process can occur sequentially, with either the electron or proton transferring first, or concertedly, with the electron and proton transferring simultaneously without a stable intermediate. The heterogeneous rate constants are calculated as functions of overpotential for the concerted electron-proton transfer reaction and the two electron transfer reactions in the sequential mechanisms. Our calculations illustrate that the concerted electron-proton transfer standard rate constant will increase as the equilibrium distance between the nickel and nitrogen atoms decreases and as the nitrogen atoms become more mobile to facilitate the contraction of this distance. This approach assists in the identification of the favored mechanisms under various experimental conditions and provides insight into the qualitative impact of substituents on the nitrogen and phosphorous atoms. This research was supported as part of the Center for Molecular Electrocatalysis, an Energy Frontier Research Center funded by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under FWP 56073.

  18. The transfer between electron bulk kinetic energy and thermal energy in collisionless magnetic reconnection

    SciTech Connect (OSTI)

    Lu, San; Lu, Quanming; Huang, Can; Wang, Shui

    2013-06-15

    By performing two-dimensional particle-in-cell simulations, we investigate the transfer between electron bulk kinetic and electron thermal energy in collisionless magnetic reconnection. In the vicinity of the X line, the electron bulk kinetic energy density is much larger than the electron thermal energy density. The evolution of the electron bulk kinetic energy is mainly determined by the work done by the electric field force and electron pressure gradient force. The work done by the electron gradient pressure force in the vicinity of the X line is changed to the electron enthalpy flux. In the magnetic island, the electron enthalpy flux is transferred to the electron thermal energy due to the compressibility of the plasma in the magnetic island. The compression of the plasma in the magnetic island is the consequence of the electromagnetic force acting on the plasma as the magnetic field lines release their tension after being reconnected. Therefore, we can observe that in the magnetic island the electron thermal energy density is much larger than the electron bulk kinetic energy density.

  19. Activators generated by electron transfer for atom transfer radical polymerization of styrene in the presence of mesoporous silica nanoparticles

    SciTech Connect (OSTI)

    Khezri, Khezrollah; Roghani-Mamaqani, Hossein

    2014-11-15

    Graphical abstract: Effect of mesoporous silica nanoparticles (MCM-41) on the activator generated by electron transfer for atom transfer radical polymerization (AGET ATRP) is investigated. Decrement of conversion and number average molecular weight and also increment of polydispersity index (PDI) values are three main results of addition of MCM-41 nanoparticles. Incorporation of MCM-41 nanoparticles in the polystyrene matrix can clearly increase thermal stability and decrease glass transition temperature of the nanocomposites. - Highlights: • Spherical morphology, hexagonal structure, and high surface area with regular pore diameters of the synthesized MCM-41 nanoparticles are examined. • AGET ATRP of styrene in the presence of MCM-41 nanoparticles is performed. • Effect of MCM-41 nanoparticles addition on the polymerization rate, conversion and molecular weights of the products are discussed. • Improvement in thermal stability of the nanocomposites and decreasing T{sub g} values was also observed by incorporation of MCM-41 nanoparticles. - Abstract: Activator generated by electron transfer for atom transfer radical polymerization was employed to synthesize well-defined mesoporous silica nanoparticles/polystyrene composites. Inherent features of spherical mesoporous silica nanoparticles were evaluated by nitrogen adsorption/desorption isotherm, X-ray diffraction and scanning electron microscopy analysis techniques. Conversion and molecular weight evaluations were carried out using gas and size exclusion chromatography respectively. By the addition of only 3 wt% mesoporous silica nanoparticles, conversion decreases from 81 to 58%. Similarly, number average molecular weight decreases from 17,116 to 12,798 g mol{sup −1}. However, polydispersity index (PDI) values increases from 1.24 to 1.58. A peak around 4.1–4.2 ppm at proton nuclear magnetic resonance spectroscopy results clearly confirms the living nature of the polymerization. Thermogravimetric analysis shows that thermal stability of the nanocomposites increases by adding nanoparticles content. Decrease of glass transition temperature is also demonstrated by the addition of 3 wt% of silica nanoparticles according to the differential scanning calorimetry results.

  20. Subcooled Boiling Heat Transfer for Cooling of Power Electronics in Hybrid

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

    SubcontractingGuidelines.doc&#0; SubcontractingGuidelines.doc&#0; PDF icon SubcontractingGuidelines.doc&#0; More Documents & Publications Guidance of the Department of Energy Subcontracting Program Acquisition Guide Chapter 19 Update Chapter 19 - Small Business Programs Electric Vehicles | Argonne National Laboratory

    Subcooled Boiling Heat Transfer for Cooling of Power Electronics in Hybrid Electric Vehicles Title Subcooled Boiling Heat Transfer for Cooling of Power

  1. File storage

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

    File storage File storage Disk Quota Change Request Form Euclid File Systems Euclid has 3 kinds of file systems available to users: home directories, scratch directories and...

  2. File Storage

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

    File Storage File Storage Disk Quota Change Request Form Carver File Systems Carver has 3 kinds of file systems available to users: home directories, scratch directories and...

  3. Powering microbes with electricity: direct electron transfer from electrodes to microbes

    SciTech Connect (OSTI)

    Lovley, DR

    2010-09-16

    P>The discovery of electrotrophs, microorganisms that can directly accept electrons from electrodes for the reduction of terminal electron acceptors, has spurred the investigation of a wide range of potential applications. To date, only a handful of pure cultures have been shown to be capable of electrotrophy, but this process has also been inferred in many studies with undefined consortia. Potential electron acceptors include: carbon dioxide, nitrate, metals, chlorinated compounds, organic acids, protons and oxygen. Direct electron transfer from electrodes to cells has many advantages over indirect electrical stimulation of microbial metabolism via electron shuttles or hydrogen production. Supplying electrons with electrodes for the bioremediation of chlorinated compounds, nitrate or toxic metals may be preferable to adding organic electron donors or hydrogen to the subsurface or bioreactors. The most transformative application of electrotrophy may be microbial electrosynthesis in which carbon dioxide and water are converted to multi-carbon organic compounds that are released extracellularly. Coupling photovoltaic technology with microbial electrosynthesis represents a novel photosynthesis strategy that avoids many of the drawbacks of biomass-based strategies for the production of transportation fuels and other organic chemicals. The mechanisms for direct electron transfer from electrodes to microorganisms warrant further investigation in order to optimize envisioned applications.

  4. Evidence for decoupled electron and proton transfer in the electrochemical oxidation of ammonia on Pt(100)

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

    Katsounaros, Ioannis; Chen, Ting; Gewirth, Andrew A.; Markovic, Nenad M.; Koper, Marc T. M.

    2016-01-12

    The two traditional mechanisms of the electrochemical ammonia oxidation consider only concerted proton-electron transfer elementary steps and thus they predict that the rate–potential relationship is independent of the pH on the pH-corrected RHE potential scale. In this letter we show that this is not the case: the increase of the solution pH shifts the onset of the NH3-to-N2 oxidation on Pt(100) to lower potentials and also leads to higher surface concentration of formed NOad before the latter is oxidized to nitrite. Therefore, we present a new mechanism for the ammonia oxidation which incorporates a deprotonation step occurring prior to themore » electron transfer. The deprotonation step yields a negatively charged surface-adsorbed species which is discharged in a subsequent electron transfer step before the N–N bond formation. The negatively charged species is thus a precursor for the formation of N2 and NO. The new mechanism should be a future guide for computational studies aiming at the identification of intermediates and corresponding activation barriers for the elementary steps. As a result, ammonia oxidation is a new example of a bond-forming reaction on (100) terraces which involves decoupled proton-electron transfer.« less

  5. Constraint-Based Modeling of Carbon Fixation and the Energetics of Electron Transfer in Geobacter metallireducens

    SciTech Connect (OSTI)

    Feist, AM; Nagarajan, H; Rotaru, AE; Tremblay, PL; Zhang, T; Nevin, KP; Lovley, DR; Zengler, K

    2014-04-24

    Geobacter species are of great interest for environmental and biotechnology applications as they can carry out direct electron transfer to insoluble metals or other microorganisms and have the ability to assimilate inorganic carbon. Here, we report on the capability and key enabling metabolic machinery of Geobacter metallireducens GS-15 to carry out CO2 fixation and direct electron transfer to iron. An updated metabolic reconstruction was generated, growth screens on targeted conditions of interest were performed, and constraint-based analysis was utilized to characterize and evaluate critical pathways and reactions in G. metallireducens. The novel capability of G. metallireducens to grow autotrophically with formate and Fe(III) was predicted and subsequently validated in vivo. Additionally, the energetic cost of transferring electrons to an external electron acceptor was determined through analysis of growth experiments carried out using three different electron acceptors (Fe(III), nitrate, and fumarate) by systematically isolating and examining different parts of the electron transport chain. The updated reconstruction will serve as a knowledgebase for understanding and engineering Geobacter and similar species. Author Summary The ability of microorganisms to exchange electrons directly with their environment has large implications for our knowledge of industrial and environmental processes. For decades, it has been known that microbes can use electrodes as electron acceptors in microbial fuel cell settings. Geobacter metallireducens has been one of the model organisms for characterizing microbe-electrode interactions as well as environmental processes such as bioremediation. Here, we significantly expand the knowledge of metabolism and energetics of this model organism by employing constraint-based metabolic modeling. Through this analysis, we build the metabolic pathways necessary for carbon fixation, a desirable property for industrial chemical production. We further discover a novel growth condition which enables the characterization of autotrophic (i.e., carbon-fixing) metabolism in Geobacter. Importantly, our systems-level modeling approach helped elucidate the key metabolic pathways and the energetic cost associated with extracellular electron transfer. This model can be applied to characterize and engineer the metabolism and electron transfer capabilities of Geobacter for biotechnological applications.

  6. Thermochemistry of Proton-Coupled Electron Transfer Reagents and its Implications

    SciTech Connect (OSTI)

    Warren, Jeffrey J.; Tronic, Tristan A.; Mayer, James M.

    2010-12-08

    Many, if not most, redox reactions are coupled to proton transfers. This includes most common sources of chemical potential energy, from the bioenergetic processes that power cells to the fossil fuel combustion that powers cars. These proton-coupled electron transfer or PCET processes may involve multiple electrons and multiple protons, as in the 4 e, 4 H+ reduction of dioxygen (O2) to water (eq 1), or can involve one electron and one proton such as the formation of tyrosyl radicals from tyrosine residues (TyrOH) in enzymatic catalytic cycles (eq 2). In addition, many multi-electron, multi-proton processes proceed in one-electron and one-proton steps. Organic reactions that proceed in one-electron steps involve radical intermediates, which play critical roles in a wide range of chemical, biological, and industrial processes. This broad and diverse class of PCET reactions are central to a great many chemical and biochemical processes, from biological catalysis and energy transduction, to bulk industrial chemical processes, to new approaches to solar energy conversion. PCET is therefore of broad and increasing interest, as illustrated by this issue and a number of other recent reviews.

  7. Metal complex-based electron-transfer mediators in dye-sensitized solar cells

    DOE Patents [OSTI]

    Elliott, C. Michael; Sapp, Shawn A.; Bignozzi, Carlo Alberto; Contado, Cristiano; Caramori, Stefano

    2006-03-28

    This present invention provides a metal-ligand complex and methods for using and preparing the same. In particular, the metal-ligand complex of the present invention is of the formula: L.sub.a-M-X.sub.b where L, M, X, a, and b are those define herein. The metal-ligand complexes of the present invention are useful in a variety of applications including as electron-transfer mediators in dye-sensitized solar cells and related photoelectrochromic devices.

  8. Quantum DotBridgeFullerene Heterodimers with Controlled Photoinduced Electron Transfer

    SciTech Connect (OSTI)

    Cotlet, M.; Xu, Z.

    2011-06-27

    A series of donor-bridge-acceptor systems in the form of core/shell CdSe/ZnS quantum dot-bridge-fullerene heterodimers (see picture) with varying bridge length and varying quantum dot size were self-assembled by a surface-based stepwise method to demonstrate control of the rate and of the magnitude of fluctuations of photoinduced electron transfer at the single-molecule level.

  9. An efficient implementation of the localized operator partitioning method for electronic energy transfer

    SciTech Connect (OSTI)

    Nagesh, Jayashree; Brumer, Paul; Izmaylov, Artur F.

    2015-02-28

    The localized operator partitioning method [Y. Khan and P. Brumer, J. Chem. Phys. 137, 194112 (2012)] rigorously defines the electronic energy on any subsystem within a molecule and gives a precise meaning to the subsystem ground and excited electronic energies, which is crucial for investigating electronic energy transfer from first principles. However, an efficient implementation of this approach has been hindered by complicated one- and two-electron integrals arising in its formulation. Using a resolution of the identity in the definition of partitioning, we reformulate the method in a computationally efficient manner that involves standard one- and two-electron integrals. We apply the developed algorithm to the 9 − ((1 − naphthyl) − methyl) − anthracene (A1N) molecule by partitioning A1N into anthracenyl and CH{sub 2} − naphthyl groups as subsystems and examine their electronic energies and populations for several excited states using configuration interaction singles method. The implemented approach shows a wide variety of different behaviors amongst the excited electronic states.

  10. Original Signatures on File

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

    Signatures on File

  11. Original Signatures on File

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

    Original Signatures on File

  12. File storage

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

    File storage File storage Disk Quota Change Request Form Euclid File Systems Euclid has 3 kinds of file systems available to users: home directories, scratch directories and project directories, all provided by the NERSC Global File system. Each file system serves a different purpose. File System Home Scratch Project Environment Variable Definition $HOME $SCRATCH or $GSCRATCH No environment variable /project/projectdirs/ Description Global homes file system shared by all NERSC systems except

  13. Proton-Coupled Electron Transfer in Molecular Electrocatalysis: Theoretical Methods and Design Principles

    SciTech Connect (OSTI)

    Solis, Brian H.; Hammes-Schiffer, Sharon

    2014-07-07

    Molecular electrocatalysts play an essential role in a wide range of energy conversion processes. The objective of electrocatalyst design is to maximize the turnover frequency and minimize the overpotential for the overall catalytic cycle. Typically the catalytic cycle is dominated by key proton-coupled electron transfer (PCET) processes comprised of sequential or concerted electron transfer and proton transfer steps. A variety of theoretical methods have been developed to investigate the mechanisms, thermodynamics, and kinetics of PCET processes in electrocatalytic cycles. Electronic structure methods can be used to calculate the reduction potentials and pKa’s and to generate thermodynamic schemes, free energy reaction pathways, and Pourbaix diagrams, which indicate the most stable species at each pH and potential. These types of calculations have assisted in identifying the thermodynamically favorable mechanisms under specified experimental conditions, such as acid strength and overpotential. Such calculations have also revealed linear correlations among the thermodynamic properties, which can be used to predict the impact of modifying the ligand, substituents, or metal center. The role of non-innocent ligands, namely ligand protonation or reduction, has also been examined theoretically. In addition, the rate constants for electron and proton transfer reactions, as well as concerted PCET reactions, have been calculated to investigate the kinetics of molecular electrocatalysts. The concerted PCET mechanism is thought to lower the overpotential required for catalysis by avoiding high-energy intermediates. Rate constant calculations have revealed that the concerted mechanism involving intramolecular proton transfer will be favored by designing more flexible ligands that facilitate the proton donor-acceptor motion while also maintaining a sufficiently short equilibrium proton donor-acceptor distance. Overall, theoretical methods have assisted in the interpretation of experimental data and the design of more effective molecular electrocatalysts. The research on the Ni(P2N2)2 catalysts was supported as part of the Center for Molecular Electrocatalysis, an Energy Frontier Research Center funded by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences.

  14. Transfers

    Broader source: Energy.gov [DOE]

    Transfer means a change of an employee, from one Federal government branch (executive, legislative, judicial) to another or from one agency to another without a break in service of 1 full work day. 

  15. Room temperature, hybrid sodium-based flow batteries with multi-electron transfer redox reactions

    SciTech Connect (OSTI)

    Shamie, Jack S.; Liu, Caihong; Shaw, Leon L.; Sprenkle, Vincent L.

    2015-06-11

    We introduce a new concept of hybrid Na-based flow batteries (HNFBs) with a molten Na alloy anode in conjunction with a flowing catholyte separated by a solid Na-ion exchange membrane for grid-scale energy storage. Such HNFBs can operate at ambient temperature, allow catholytes to have multiple electron transfer redox reactions per active ion, offer wide selection of catholyte chemistries with multiple active ions to couple with the highly negative Na alloy anode, and enable the use of both aqueous and non-aqueous catholytes. Further, the molten Na alloy anode permits the decoupled design of power and energy since a large volume of the molten Na alloy can be used with a limited ion-exchange membrane size. In this proof-of-concept study, the feasibility of multielectron transfer redox reactions per active ion and multiple active ions for catholytes has been demonstrated. Furthermore, the critical barriers to mature this new HNFBs have also been explored.

  16. Room Temperature, Hybrid Sodium-Based Flow Batteries with Multi-Electron Transfer Redox Reactions

    SciTech Connect (OSTI)

    Shamie, Jack S.; Liu, Caihong; Shaw, Leon L.; Sprenkle, Vincent L.

    2015-06-11

    We introduce a new concept of hybrid Na-based flow batteries (HNFBs) with a molten Na alloy anode in conjunction with a flowing catholyte separated by a solid Na-ion exchange membrane for grid-scale energy storage. Such HNFBs can operate at ambient temperature, allow catholytes to have multiple electron transfer redox reactions per active ion, offer wide selection of catholyte chemistries with multiple active ions to couple with the highly negative Na alloy anode, and enable the use of both aqueous and non-aqueous catholytes. Further, the molten Na alloy anode permits the decoupled design of power and energy since a large volume of the molten Na alloy can be used with a limited ion-exchange membrane size. In this proof-of-concept study, the feasibility of multielectron transfer redox reactions per active ion and multiple active ions for catholytes has been demonstrated. The critical barriers to mature this new HNFBs have also been explored.

  17. Electronic and vibronic properties of a discotic liquid-crystal and its charge transfer complex

    SciTech Connect (OSTI)

    Haverkate, Lucas A.; Mulder, Fokko M.; Zbiri, Mohamed Johnson, Mark R.; Carter, Elizabeth; Kotlewski, Arek; Picken, S.

    2014-01-07

    Discotic liquid crystalline (DLC) charge transfer (CT) complexes combine visible light absorption and rapid charge transfer characteristics, being favorable properties for photovoltaic (PV) applications. We present a detailed study of the electronic and vibrational properties of the prototypic 1:1 mixture of discotic 2,3,6,7,10,11-hexakishexyloxytriphenylene (HAT6) and 2,4,7-trinitro-9-fluorenone (TNF). It is shown that intermolecular charge transfer occurs in the ground state of the complex: a charge delocalization of about 10{sup ?2} electron from the HAT6 core to TNF is deduced from both Raman and our previous NMR measurements [L. A. Haverkate, M. Zbiri, M. R. Johnson, B. Deme, H. J. M. de Groot, F. Lefeber, A. Kotlewski, S. J. Picken, F. M. Mulder, and G. J. Kearley, J. Phys. Chem. B 116, 13098 (2012)], implying the presence of permanent dipoles at the donor-acceptor interface. A combined analysis of density functional theory calculations, resonant Raman and UV-VIS absorption measurements indicate that fast relaxation occurs in the UV region due to intramolecular vibronic coupling of HAT6 quinoidal modes with lower lying electronic states. Relatively slower relaxation in the visible region the excited CT-band of the complex is also indicated, which likely involves motions of the TNF nitro groups. The fast quinoidal relaxation process in the hot UV band of HAT6 relates to pseudo-Jahn-Teller interactions in a single benzene unit, suggesting that the underlying vibronic coupling mechanism can be generic for polyaromatic hydrocarbons. Both the presence of ground state CT dipoles and relatively slow relaxation processes in the excited CT band can be relevant concerning the design of DLC based organic PV systems.

  18. Ultrafast electron transfer at organic semiconductor interfaces: Importance of molecular orientation

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

    Ayzner, Alexander L.; Nordlund, Dennis; Kim, Do -Hwan; Bao, Zhenan; Toney, Michael F.

    2014-12-04

    Much is known about the rate of photoexcited charge generation in at organic donor/acceptor (D/A) heterojunctions overaged over all relative arrangements. However, there has been very little experimental work investigating how the photoexcited electron transfer (ET) rate depends on the precise relative molecular orientation between D and A in thin solid films. This is the question that we address in this work. We find that the ET rate depends strongly on the relative molecular arrangement: The interface where the model donor compound copper phthalocyanine is oriented face-on with respect to the fullerene C60 acceptor yields a rate that is approximatelymore » 4 times faster than that of the edge-on oriented interface. Our results suggest that the D/A electronic coupling is significantly enhanced in the face-on case, which agrees well with theoretical predictions, underscoring the importance of controlling the relative interfacial molecular orientation.« less

  19. Ultrafast electron transfer at organic semiconductor interfaces: Importance of molecular orientation

    SciTech Connect (OSTI)

    Ayzner, Alexander L.; Nordlund, Dennis; Kim, Do -Hwan; Bao, Zhenan; Toney, Michael F.

    2014-12-04

    Much is known about the rate of photoexcited charge generation in at organic donor/acceptor (D/A) heterojunctions overaged over all relative arrangements. However, there has been very little experimental work investigating how the photoexcited electron transfer (ET) rate depends on the precise relative molecular orientation between D and A in thin solid films. This is the question that we address in this work. We find that the ET rate depends strongly on the relative molecular arrangement: The interface where the model donor compound copper phthalocyanine is oriented face-on with respect to the fullerene C60 acceptor yields a rate that is approximately 4 times faster than that of the edge-on oriented interface. Our results suggest that the D/A electronic coupling is significantly enhanced in the face-on case, which agrees well with theoretical predictions, underscoring the importance of controlling the relative interfacial molecular orientation.

  20. Fragment transition density method to calculate electronic coupling for excitation energy transfer

    SciTech Connect (OSTI)

    Voityuk, Alexander A.

    2014-06-28

    A general approach, the Fragment Transition Density (FTD) scheme, is introduced to estimate electronic coupling for excitation energy transfer in a molecular system. Within this method, the excitation energies and transition densities of the system are used to derive the coupling matrix element. The scheme allows one to treat systems where exciton donor and acceptor are close together and their exchange interaction and orbital overlap are significant. The FTD method can be applied in combination with any quantum mechanical approach to treat excited states of general nature including single-, double-, and higher excitations. Using FTD approach, we derive excitonic couplings for several systems computed with the CIS, TD DFT and MS-CASPT2 methods. In particular, it is shown that the estimated coupling values in DNA ?-stacks are strongly affected by the short-range electronic interaction of adjacent nucleobases.

  1. Coupled electron-nuclear dynamics: Charge migration and charge transfer initiated near a conical intersection

    SciTech Connect (OSTI)

    Mendive-Tapia, David; Vacher, Morgane; Bearpark, Michael J.; Robb, Michael A.

    2013-07-28

    Coupled electron-nuclear dynamics, implemented using the Ehrenfest method, has been used to study charge migration with fixed nuclei, together with charge transfer when nuclei are allowed to move. Simulations were initiated at reference geometries of neutral benzene and 2-phenylethylamine (PEA), and at geometries close to potential energy surface crossings in the cations. Cationic eigenstates, and the so-called sudden approximation, involving removal of an electron from a correlated ground-state wavefunction for the neutral species, were used as initial conditions. Charge migration without coupled nuclear motion could be observed if the Ehrenfest simulation, using the sudden approximation, was started near a conical intersection where the states were both strongly coupled and quasi-degenerate. Further, the main features associated with charge migration were still recognizable when the nuclear motion was allowed to couple. In the benzene radical cation, starting from the reference neutral geometry with the sudden approximation, one could observe sub-femtosecond charge migration with a small amplitude, which results from weak interaction with higher electronic states. However, we were able to engineer large amplitude charge migration, with a period between 10 and 100 fs, corresponding to oscillation of the electronic structure between the quinoid and anti-quinoid cationic electronic configurations, by distorting the geometry along the derivative coupling vector from the D{sub 6h} Jahn-Teller crossing to lower symmetry where the states are not degenerate. When the nuclear motion becomes coupled, the period changes only slightly. In PEA, in an Ehrenfest trajectory starting from the D{sub 2} eigenstate and reference geometry, a partial charge transfer occurs after about 12 fs near the first crossing between D{sub 1}, D{sub 2} (N{sup +}-Phenyl, N-Phenyl{sup +}). If the Ehrenfest propagation is started near this point, using the sudden approximation without coupled nuclear motion, one observes an oscillation of the spin density charge migration between the N atom and the phenyl ring with a period of 4 fs. When the nuclear motion becomes coupled, this oscillation persists in a damped form, followed by an effective charge transfer after 30 fs.

  2. Mechanisms for Electron Transfer Through Pili to Fe(III) Oxide in Geobacter

    SciTech Connect (OSTI)

    Lovley, Derek R.

    2015-03-09

    The purpose of these studies was to aid the Department of Energy in its goal of understanding how microorganisms involved in the bioremediation of metals and radionuclides sustain their activity in the subsurface. This information is required in order to incorporate biological processes into decision making for environmental remediation and long-term stewardship of contaminated sites. The proposed research was designed to elucidate the mechanisms for electron transfer to Fe(III) oxides in Geobacter species because Geobacter species are abundant dissimilatory metal-reducing microorganisms in a diversity of sites in which uranium is undergoing natural attenuation via the reduction of soluble U(VI) to insoluble U(IV) or when this process is artificially stimulated with the addition of organic electron donors. This study investigated the novel, but highly controversial, concept that the final conduit for electron transfer to Fe(III) oxides are electrically conductive pili. The specific objectives were to: 1) further evaluate the conductivity along the pili of Geobacter sulfurreducens and related organisms; 2) determine the mechanisms for pili conductivity; and 3) investigate the role of pili in Fe(III) oxide reduction. The studies demonstrated that the pili of G. sulfurreducens are conductive along their length. Surprisingly, the pili possess a metallic-like conductivity similar to that observed in synthetic organic conducting polymers such as polyaniline. Detailed physical analysis of the pili, as well as studies in which the structure of the pili was genetically modified, demonstrated that the metallic-like conductivity of the pili could be attributed to overlapping pi-pi orbitals of aromatic amino acids. Other potential mechanisms for conductivity, such as electron hopping between cytochromes associated with the pili were definitively ruled out. Pili were also found to be essential for Fe(III) oxide reduction in G. metallireducens. Ecological studies demonstrated that electron conduction along pili is a better strategy for Fe(III) oxide reduction under conditions found in the subsurface than producing an electron shuttle. The role of pili in uranium reduction was also elucidated. Our results are the first example of metallic-like conductivity in a biological protein and represent a paradigm shift in the understanding of long-range biological electron transport. The results are of importance not only for understanding subsurface microbial processes involved in the mobility of metal contaminants and carbon cycling, but also make a basic contribution to microbiology and the emerging field of bioelectronics.

  3. Fundamental studies of energy-and hole/electron- transfer in hydroporphyrin architectures

    SciTech Connect (OSTI)

    Bocian, David F.

    2014-08-20

    The long-term objective of the Bocian/Holten/Lindsey research program is to design, synthesize, and characterize tetrapyrrole-based molecular architectures that absorb sunlight, funnel energy, and separate charge with high efficiency and in a manner compatible with current and future solar-energy conversion schemes. The synthetic tetrapyrroles include porphyrins and hydroporphyrins; the latter classes of molecules encompass analogues of the naturally occurring chlorophylls and bacteriochlorophylls (e.g., chlorins, bacteriochlorins, and their derivatives). The attainment of the goals of the research program requires the close interplay of molecular design and synthesis (Lindsey group), static and time-resolved optical spectroscopic measurements (Holten group), and electrochemical, electron paramagnetic resonance, and resonance Raman studies, as well as density functional theory calculations (Bocian Group). The proposed research encompasses four interrelated themes: (1) Determination of the rates of ground-state hole/electron transfer between (hydro)porphyrins in multipigment arrays as a function of array size, distance between components, linker type, site of linker connection, and frontier molecular orbital composition. (2) Examination of excited-state energy transfer among hydroporphyrins in multipigment arrrays, including both pairwise and non-adjacent transfer, with a chief aim to identify the relative contributions of through-space (Förster) and through-bond (Dexter) mechanisms of energy transfer, including the roles of site of linker connection and frontier molecular orbital composition. (3) Elucidation of the role of substituents in tuning the spectral and electronic properties of bacteriochlorins, with a primary aim of learning how to shift the long-wavelength absorption band deeper into the near-infrared region. (4) Continued development of the software package PhotochemCAD for spectral manipulations and calculations through the compilation of a database of spectra for naturally occurring and synthetic hydroporphyrins. The availability of such data should augment efforts in the design of light-harvesting systems where spectral coverage in the red and near-infrared regions is desired. Collectively, the proposed studies will provide fundamental insights into molecular properties, interactions, and processes relevant to the design of molecular architectures for solar-energy conversion. The accomplishment of these goals is only possible through a highly synergistic program that encompasses molecular design, synthesis, and characterization.

  4. Data Transfer

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

    Transfer Data Transfer This section contains advice for the best ways to get your data into and out of NERSC. Globus Globus is a service for fast reliable managed data transfers. Read More » GridFTP GridFTP is a high-performance, secure, reliable data transfer protocol optimized for high-bandwidth wide-area networks. The GridFTP protocol is based on FTP, the highly-popular Internet file transfer protocol. Read More » Data Transfer Nodes The data transfer nodes are optimized for moving data

  5. Filing Information | Department of Energy

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

    We therefore encourage electronic filing of time-sensitive submissions. If you have any questions, please contact Fred Brown, Deputy Director, at (202) 287-1545. Mailing Address ...

  6. Electronic-excitation energy transfer in heterogeneous dye solutions under laser excitation

    SciTech Connect (OSTI)

    Levshin, L.V.; Mukushev, B.T.; Saletskii, A.M.

    1995-10-01

    An experimental study has been made of electronic-excitation energy transfer (EEET) among dye molecules of different types for different exciting-fight wavelengths and temperatures. Upon selective laser excitation of the donor, the inhomogeneous broadening of molecular levels increases the probability of EEET from the donor to acceptor molecules. The efficiency of this process is directly proportional to the acceptor molecule concentration and is temperature dependent. The EEET is accompanied by the spectral migration of energy among donor molecules, which reduces the fluorescence quantum efficiency of the donor. Increasing the frequency of the exciting light decreases in the donor fluorescence quantum efficiency. An increase in the acceptor molecule concentration results in a decrease of the spectral migration of excitation in the donor molecule system. 5 refs., 5 figs.

  7. Charge Transfer Fluorescence and 34 nm Exciton Diffusion Length in Polymers with Electron Acceptor End Traps

    SciTech Connect (OSTI)

    Zaikowski, L.; Mauro, G.; Bird, M.; Karten, B.; Asaoka, S.; Wu, Q.; Cook, A. R.; Miller, J.

    2014-12-22

    Photoexcitation of conjugated poly-2,7-(9,9-dihexylfluorene) polyfluorenes with naphthylimide (NI) and anthraquinone (AQ) electron-acceptor end traps produces excitons that form charge transfer states at the end traps. Intramolecular singlet exciton transport to end traps was examined by steady state fluorescence for polyfluorenes of 17 to 127 repeat units in chloroform, dimethylformamide (DMF), tetrahydrofuran (THF), and p-xylene. End traps capture excitons and form charge transfer (CT) states at all polymer lengths and in all solvents. The CT nature of the end-trapped states is confirmed by their fluorescence spectra, solvent and trap group dependence and DFT descriptions. Quantum yields of CT fluorescence are as large as 46%. This strong CT emission is understood in terms of intensity borrowing. Energies of the CT states from onsets of the fluorescence spectra give the depths of the traps which vary with solvent polarity. For NI end traps the trap depths are 0.06 (p-xylene), 0.13 (THF) and 0.19 eV (CHCl3). For AQ, CT fluorescence could be observed only in p-xylene where the trap depth is 0.27 eV. Quantum yields, emission energies, charge transfer energies, solvent reorganization and vibrational energies were calculated. Fluorescence measurements on chains >100 repeat units indicate that end traps capture ~50% of the excitons, and that the exciton diffusion length LD =34 nm, which is much larger than diffusion lengths reported in polymer films or than previously known for diffusion along isolated chains. The efficiency of exciton capture depends on chain length, but not on trap depth, solvent polarity or which trap group is present.

  8. Charge transfer fluorescence and 34 nm exciton diffusion length in polymers with electron acceptor end traps

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

    Zaikowski, Lori; Mauro, Gina; Bird, Matthew; Karten, Brianne; Asaoka, Sadayuki; Wu, Qin; Cook, Andrew R.; Miller, John R.

    2014-12-22

    Photoexcitation of conjugated poly-2,7-(9,9-dihexylfluorene) polyfluorenes with naphthylimide (NI) and anthraquinone (AQ) electron-acceptor end traps produces excitons that form charge transfer states at the end traps. Intramolecular singlet exciton transport to end traps was examined by steady state fluorescence for polyfluorenes of 17 to 127 repeat units in chloroform, dimethylformamide (DMF), tetrahydrofuran (THF), and p-xylene. End traps capture excitons and form charge transfer (CT) states at all polymer lengths and in all solvents. The CT nature of the end-trapped states is confirmed by their fluorescence spectra, solvent and trap group dependence and DFT descriptions. Quantum yields of CT fluorescence are asmore » large as 46%. This strong CT emission is understood in terms of intensity borrowing. Energies of the CT states from onsets of the fluorescence spectra give the depths of the traps which vary with solvent polarity. For NI end traps the trap depths are 0.06 (p-xylene), 0.13 (THF) and 0.19 eV (CHCl3). For AQ, CT fluorescence could be observed only in p-xylene where the trap depth is 0.27 eV. Quantum yields, emission energies, charge transfer energies, solvent reorganization and vibrational energies were calculated. Fluorescence measurements on chains >100 repeat units indicate that end traps capture ~50% of the excitons, and that the exciton diffusion length LD =34 nm, which is much larger than diffusion lengths reported in polymer films or than previously known for diffusion along isolated chains. As a result, the efficiency of exciton capture depends on chain length, but not on trap depth, solvent polarity or which trap group is present.« less

  9. Signature on File

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

    Signature on File Signature on File 5/29/08

  10. Room Temperature, Hybrid Sodium-Based Flow Batteries with Multi-Electron Transfer Redox Reactions

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

    Shamie, Jack S.; Liu, Caihong; Shaw, Leon L.; Sprenkle, Vincent L.

    2015-06-11

    We introduce a new concept of hybrid Na-based flow batteries (HNFBs) with a molten Na alloy anode in conjunction with a flowing catholyte separated by a solid Na-ion exchange membrane for grid-scale energy storage. Such HNFBs can operate at ambient temperature, allow catholytes to have multiple electron transfer redox reactions per active ion, offer wide selection of catholyte chemistries with multiple active ions to couple with the highly negative Na alloy anode, and enable the use of both aqueous and non-aqueous catholytes. Further, the molten Na alloy anode permits the decoupled design of power and energy since a large volumemoreof the molten Na alloy can be used with a limited ion-exchange membrane size. In this proof-of-concept study, the feasibility of multielectron transfer redox reactions per active ion and multiple active ions for catholytes has been demonstrated. The critical barriers to mature this new HNFBs have also been explored.less

  11. Room temperature, hybrid sodium-based flow batteries with multi-electron transfer redox reactions

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

    Shamie, Jack S.; Liu, Caihong; Shaw, Leon L.; Sprenkle, Vincent L.

    2015-06-11

    We introduce a new concept of hybrid Na-based flow batteries (HNFBs) with a molten Na alloy anode in conjunction with a flowing catholyte separated by a solid Na-ion exchange membrane for grid-scale energy storage. Such HNFBs can operate at ambient temperature, allow catholytes to have multiple electron transfer redox reactions per active ion, offer wide selection of catholyte chemistries with multiple active ions to couple with the highly negative Na alloy anode, and enable the use of both aqueous and non-aqueous catholytes. Further, the molten Na alloy anode permits the decoupled design of power and energy since a large volumemore » of the molten Na alloy can be used with a limited ion-exchange membrane size. In this proof-of-concept study, the feasibility of multielectron transfer redox reactions per active ion and multiple active ions for catholytes has been demonstrated. Furthermore, the critical barriers to mature this new HNFBs have also been explored.« less

  12. Excitonic splitting and coherent electronic energy transfer in the gas-phase benzoic acid dimer

    SciTech Connect (OSTI)

    Ottiger, Philipp; Leutwyler, Samuel

    2012-11-28

    The benzoic acid dimer, (BZA){sub 2}, is a paradigmatic symmetric hydrogen bonded dimer with two strong antiparallel hydrogen bonds. The excitonic S{sub 1}/S{sub 2} state splitting and coherent electronic energy transfer within supersonically cooled (BZA){sub 2} and its {sup 13}C-, d{sub 1}-, d{sub 2}-, and {sup 13}C/d{sub 1}- isotopomers have been investigated by mass-resolved two-color resonant two-photon ionization spectroscopy. The (BZA){sub 2}-(h-h) and (BZA){sub 2}-(d-d) dimers are C{sub 2h} symmetric, hence only the S{sub 2} Leftwards-Arrow S{sub 0} transition can be observed, the S{sub 1} Leftwards-Arrow S{sub 0} transition being strictly electric-dipole forbidden. A single {sup 12}C/{sup 13}C or H/D isotopic substitution reduces the symmetry of the dimer to C{sub s}, so that the isotopic heterodimers (BZA){sub 2}-{sup 13}C, (BZA){sub 2}-(h-d), (BZA){sub 2}-(h{sup 13}C-d), and (BZA){sub 2}-(h-d{sup 13}C) show both S{sub 1} Leftwards-Arrow S{sub 0} and S{sub 2} Leftwards-Arrow S{sub 0} bands. The S{sub 1}/S{sub 2} exciton splitting inferred is {Delta}{sub exc}= 0.94 {+-} 0.1 cm{sup -1}. This is the smallest splitting observed so far for any H-bonded gas-phase dimer. Additional isotope-dependent contributions to the splittings, {Delta}{sub iso}, arise from the change of the zero-point vibrational energy upon electronic excitation and range from {Delta}{sub iso}= 3.3 cm{sup -1} upon {sup 12}C/{sup 13}C substitution to 14.8 cm{sup -1} for carboxy H/D substitution. The degree of excitonic localization/delocalization can be sensitively measured via the relative intensities of the S{sub 1} Leftwards-Arrow S{sub 0} and S{sub 2} Leftwards-Arrow S{sub 0} origin bands; near-complete localization is observed even for a single {sup 12}C/{sup 13}C substitution. The S{sub 1}/ S{sub 2} energy gap of (BZA){sub 2} is {Delta}{sub calc}{sup exc}=11 cm{sup -1} when calculated by the approximate second-order perturbation theory (CC2) method. Upon correction for vibronic quenching, this decreases to {Delta}{sub vibron}{sup exc}=2.1 cm{sup -1} [P. Ottiger et al., J. Chem. Phys. 136, 174308 (2012)], in good agreement with the observed {Delta}{sub exc}= 0.94 cm{sup -1}. The observed excitonic splittings can be converted to exciton hopping times {tau}{sub exc}. For the (BZA){sub 2}-(h-h) homodimer {tau}{sub exc}= 18 ps, which is nearly 40 times shorter than the double proton transfer time of (BZA){sub 2} in its excited state [Kalkman et al., ChemPhysChem 9, 1788 (2008)]. Thus, the electronic energy transfer is much faster than the proton-transfer in (BZA){sub 2}{sup *}.

  13. Redox linked flavin sites in extracellular decaheme proteins involved in microbe-mineral electron transfer.

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

    Edwards, Marcus J.; White, Gaye F.; Norman, Michael; Tome-Fernandez, Alice; Ainsworth, Emma; Shi, Liang; Fredrickson, Jim K.; Zachara, John M.; Butt, Julea N.; Richardson, David J.; et al

    2015-07-01

    Extracellular microbe-mineral electron transfer is a major driving force for the oxidation of organic carbon in many subsurface environments. Extracellular multi-heme cytochromes of the Shewenella genus play a major role in this process but the mechanism of electron exchange at the interface between cytochrome and acceptor is widely debated. The 1.8 Å x-ray crystal structure of the decaheme MtrC revealed a highly conserved CX₈C disulfide that, when substituted for AX₈A, severely compromised the ability of S. oneidensis to grow under aerobic conditions. Reductive cleavage of the disulfide in the presence of flavin mononucleotide (FMN) resulted in the reversible formation ofmore » a stable flavocytochrome. Similar results were also observed with other decaheme cytochromes, OmcA, MtrF and UndA. The data suggest that these decaheme cytochromes can transition between highly reactive flavocytochromes or less reactive cytochromes, and that this transition is controlled by a redox active disulfide that responds to the presence of oxygen.« less

  14. Redox linked flavin sites in extracellular decaheme proteins involved in microbe-mineral electron transfer.

    SciTech Connect (OSTI)

    Edwards, Marcus J.; White, Gaye F.; Norman, Michael; Tome-Fernandez, Alice; Ainsworth, Emma; Shi, Liang; Fredrickson, Jim K.; Zachara, John M.; Butt, Julea N.; Richardson, David J.; Clarke, Thomas A.

    2015-07-01

    Extracellular microbe-mineral electron transfer is a major driving force for the oxidation of organic carbon in many subsurface environments. Extracellular multi-heme cytochromes of the Shewenella genus play a major role in this process but the mechanism of electron exchange at the interface between cytochrome and acceptor is widely debated. The 1.8 Å x-ray crystal structure of the decaheme MtrC revealed a highly conserved CX₈C disulfide that, when substituted for AX₈A, severely compromised the ability of S. oneidensis to grow under aerobic conditions. Reductive cleavage of the disulfide in the presence of flavin mononucleotide (FMN) resulted in the reversible formation of a stable flavocytochrome. Similar results were also observed with other decaheme cytochromes, OmcA, MtrF and UndA. The data suggest that these decaheme cytochromes can transition between highly reactive flavocytochromes or less reactive cytochromes, and that this transition is controlled by a redox active disulfide that responds to the presence of oxygen.

  15. Files systems

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

    Files systems Files systems NERSC's global home and project file systems are available on Franklin. Additionally, Franklin has over 400 TB of locally attached high-performance /scratch disk space For information on the NERSC file systems, see the link at right. Scratch File Systems Size Aggregate Peak Performance # IO Servers Interconnect File System Software Disk Array Vendor $SCRATCH 209 TB 17 GB/sec 24 Lustre DDN $SCRATCH2 209 TB 17 GB/sec 24 Lustre DDN SCRATCH and SCRATCH2 There are two

  16. Transparent Conductors from Carbon Nanotubes LBL-Assembled with Polymer Dopant with ?-? Electron Transfer

    SciTech Connect (OSTI)

    Zhu, Jian; Shim, Bong Sup; Di Prima, Matthew; Kotov, Nicholas A.

    2011-01-01

    Single-walled carbon nanotube (SWNT) and other carbon-based coatings are being considered as replacements for indium tin oxide (ITO). The problems of transparent conductors (TCs) coatings from SWNT and similar materials include poor mechanical properties, high roughness, low temperature resilience, and fast loss of conductivity. The simultaneous realization of these desirable characteristics can be achieved using high structural control of layer-by-layer (LBL) deposition, which is demonstrated by the assembly of hydroethyl cellulose (HOCS) and sulfonated polyetheretherketone (SPEEK)-SWNTs. A new type of SWNT doping based on electron transfer from valence bands of nanotubes to unoccupied levels of SPEEK through ?-? interactions was identified for this system. It leads to a conductivity of 1.1 10? S/m at 66 wt % loadings of SWNT. This is better than other polymer/SWNT composites and translates into surface conductivity of 920 ?/? and transmittance of 86.7% at 550 nm. The prepared LBL films also revealed unusually high temperature resilience up to 500 C, and low roughness of 3.5 nm (ITO glass -2.4 nm). Tensile modulus, ultimate strength, and toughness of such coatings are 13 2 GPa, 366 35 MPa, and 8 3 kJ/m, respectively, and exceed corresponding parameters of all similar TCs. The cumulative figure of merit, ?TC, which included the critical failure strain relevant for flexible electronics, was ?TC = 0.022 and should be compared to ?TC = 0.006 for commercial ITO. Further optimization is possible using stratified nanoscale coatings and improved doping from the macromolecular LBL components.

  17. Portable File Format (PFF) specifications.

    SciTech Connect (OSTI)

    Dolan, Daniel H.,

    2015-02-01

    Created at Sandia National Laboratories, the Portable File Format (PFF) allows binary data transfer across computer platforms. Although this capability is supported by many other formats, PFF files are still in use at Sandia, particularly in pulsed power research. This report provides detailed PFF specifications for accessing data without relying on legacy code.

  18. File Systems

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

    on PDSF please see Eliza File Systems and Other File Systems. Below is a summary of how ATLAS uses the various systems: common In the past ATLAS used common primarily for their...

  19. Visualizing the non-equilibrium dynamics of photoinduced intramolecular electron transfer with femtosecond X-ray pulses

    SciTech Connect (OSTI)

    Canton, Sophie E.; Kjr, Kasper S.; Vank, Gyrgy; van Driel, Tim B.; Adachi, Shin -ichi; Bordage, Amlie; Bressler, Christian; Chabera, Pavel; Christensen, Morten; Dohn, Asmus O.; Galler, Andreas; Gawelda, Wojciech; Gosztola, David; Haldrup, Kristoffer; Harlang, Tobias; Liu, Yizhu; Mller, Klaus B.; Nmeth, Zoltn; Nozawa, Shunsuke; Ppai, Mtys; Sato, Tokushi; Sato, Takahiro; Suarez-Alcantara, Karina; Togashi, Tadashi; Tono, Kensuke; Uhlig, Jens; Vithanage, Dimali A.; Wrnmark, Kenneth; Yabashi, Makina; Zhang, Jianxin; Sundstrm, Villy; Nielsen, Martin M.

    2015-03-02

    Ultrafast photoinduced electron transfer preceding energy equilibration still poses many experimental and conceptual challenges to the optimization of photoconversion since an atomic-scale description has so far been beyond reach. Here we combine femtosecond transient optical absorption spectroscopy with ultrafast X-ray emission spectroscopy and diffuse X-ray scattering at the SACLA facility to track the non-equilibrated electronic and structural dynamics within a bimetallic donoracceptor complex that contains an optically dark centre. Exploiting the 100-fold increase in temporal resolution as compared with storage ring facilities, these measurements constitute the first X-ray-based visualization of a non-equilibrated intramolecular electron transfer process over large interatomic distances. Thus experimental and theoretical results establish that mediation through electronically excited molecular states is a key mechanistic feature. The present study demonstrates the extensive potential of femtosecond X-ray techniques as diagnostics of non-adiabatic electron transfer processes in synthetic and biological systems, and some directions for future studies, are outlined.

  20. Visualizing the non-equilibrium dynamics of photoinduced intramolecular electron transfer with femtosecond X-ray pulses

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

    Canton, Sophie E.; Kjær, Kasper S.; Vankó, György; van Driel, Tim B.; Adachi, Shin -ichi; Bordage, Amélie; Bressler, Christian; Chabera, Pavel; Christensen, Morten; Dohn, Asmus O.; et al

    2015-03-02

    Ultrafast photoinduced electron transfer preceding energy equilibration still poses many experimental and conceptual challenges to the optimization of photoconversion since an atomic-scale description has so far been beyond reach. Here we combine femtosecond transient optical absorption spectroscopy with ultrafast X-ray emission spectroscopy and diffuse X-ray scattering at the SACLA facility to track the non-equilibrated electronic and structural dynamics within a bimetallic donor–acceptor complex that contains an optically dark centre. Exploiting the 100-fold increase in temporal resolution as compared with storage ring facilities, these measurements constitute the first X-ray-based visualization of a non-equilibrated intramolecular electron transfer process over large interatomic distances.more » Thus experimental and theoretical results establish that mediation through electronically excited molecular states is a key mechanistic feature. The present study demonstrates the extensive potential of femtosecond X-ray techniques as diagnostics of non-adiabatic electron transfer processes in synthetic and biological systems, and some directions for future studies, are outlined.« less

  1. Dynamics of electron solvation in methanol: Excited state relaxation and generation by charge-transfer-to-solvent

    SciTech Connect (OSTI)

    Elkins, Madeline H.; Williams, Holly L.; Neumark, Daniel M.

    2015-06-21

    The charge-transfer-to-solvent dynamics (CTTS) and excited state relaxation mechanism of the solvated electron in methanol are studied by time-resolved photoelectron spectroscopy on a liquid methanol microjet by means of two-pulse and three-pulse experiments. In the two-pulse experiment, CTTS excitation is followed by a probe photoejection pulse. The resulting time-evolving photoelectron spectrum reveals multiple time scales characteristic of relaxation and geminate recombination of the initially generated electron which are consistent with prior results from transient absorption. In the three-pulse experiment, the relaxation dynamics of the solvated electron following electronic excitation are measured. The internal conversion lifetime of the excited electron is found to be 130 40 fs, in agreement with extrapolated results from clusters and the non-adiabatic relaxation mechanism.

  2. File Systems

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

    File Systems File Systems For a general description of the different file systems available on PDSF please see Eliza File Systems and Other File Systems. Below is a summary of how ALICE uses the various systems: /common ALICE uses /common to build the software that supports its grid-based automated production work. This software includes AliRoot, Geant, AliEn, and XRootD. /eliza6, /eliza8, /eliza17 ALICE has space on 3 elizas: 16TB on /eliza6, 6TB on /eliza8 and 11TB on /eliza17. The space on

  3. File Systems

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

    File Systems File Systems For a general description of the different file systems available on PDSF please see Eliza File Systems and Other File Systems. Below is a summary of how STAR uses the various systems: /common The STAR software is installed on /common. For 32sl44 it is under /common/star/star44 and for sl53 it is under /common/star/star53. In both cases the software consists primarily of a STAR-specific ROOT installation on which releases of the STAR libraries are built as shown on the

  4. Rational engineering of Geobacter sulfurreducens electron transfer components: A foundation for building improved Geobacter-based bioelectrochemical technologies

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

    Dantas, Joana M.; Morgado, Leonor; Aklujkar, Muktak; Bruix, Marta; Londer, Yuri Y.; Schiffer, Marianne; Pokkuluri, P. Raj; Salgueiro, Carlos A.

    2015-07-30

    Multiheme cytochromes have been implicated in Geobacter sulfurreducens extracellular electron transfer (EET). These proteins are potential targets to improve EET and enhance bioremediation and electrical current production by G. sulfurreducens. However, the functional characterization of multiheme cytochromes is particularly complex due to the co-existence of several microstates in solution, connecting the fully reduced and fully oxidized states. Throughout the last decade, new strategies have been developed to characterize multiheme redox proteins functionally and structurally. These strategies were used to reveal the functional mechanism of G. sulfurreducens multiheme cytochromes and also to identify key residues in these proteins for EET. Inmore » previous studies, we set the foundations for enhancement of the EET abilities of G. sulfurreducens by characterizing a family of five triheme cytochromes (PpcA-E). These periplasmic cytochromes are implicated in electron transfer between the oxidative reactions of metabolism in the cytoplasm and the reduction of extracellular terminal electron acceptors at the cell's outer surface. The results obtained suggested that PpcA can couple e-/H+ transfer, a property that might contribute to the proton electrochemical gradient across the cytoplasmic membrane for metabolic energy production. The structural and functional properties of PpcA were characterized in detail and used for rational design of a family of 23 single site PpcA mutants. In this review, we summarize the functional characterization of the native and mutant proteins. Mutants that retain the mechanistic features of PpcA and adopt preferential e-/H+ transfer pathways at lower reduction potential values compared to the wild-type protein were selected for in vivo studies as the best candidates to increase the electron transfer rate of G. sulfurreducens. For the first time G. sulfurreducens strains have been manipulated by the introduction of mutant forms of essential proteins with the aim to develop and improve bioelectrochemical technologies.« less

  5. Application of Momentum Transfer Theory for Ion and Electron Transport in Pure Gases and in Gas Mixtures

    SciTech Connect (OSTI)

    Jovanovic, J.V.; Vrhovac, S. B.

    2004-12-01

    In this paper we have presented two applications of Momentum Transfer Theory (MTT), which were both aimed at obtaining reliable data for modeling of non-equilibrium plasma. Transport properties of ion swarms in presence of Resonant Charge Transfer (RCT) collisions are studied using Momentum Transfer Theory (MTT). Using the developed MTT we tested a previously available anisotropic set of cross-sections for Ar++Ar collisions bay making the comparisons with the available data for the transverse diffusion coefficient. We also developed an anisotropic set of Ne++Ne integral cross-sections based on the available data for mobility, longitudinal and transverse diffusion. Anisotropic sets of cross-sections are needed for Monte Carlo simulations of ion transport and plasma models. Application of Blanc's Law for drift velocities of electrons and ions in gas mixtures at arbitrary reduced electric field strengths E/n0 was studied theoretically and by numerical examples. Corrections for Blanc's Law that include effects of inelastic collisions were derived. In addition we have derived the common mean energy procedure that was proposed by Chiflikian in a general case both for ions and electrons. Both corrected common E/n0 and common mean energy procedures provide excellent results even for electrons at moderate E/n0 where application of Blanc's Law was regarded as impossible. In mixtures of two gases that have negative differential conductivity (NDC) even when neither of the two pure gases show NDC the Blanc's Law procedure was able to give excellent predictions.

  6. Bandwidth and Transfer Activity

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

    Activity Bandwidth and Transfer Activity Data Rate vs. File Size The graph below shows the bandwidth for individual file transfers for one day. The graph also gives a quick overview of the traffic and maximum bandwidth and file size for a given day. Historical yearly peak days. Daily Rate vs. Size Aggregate Transfer Bandwidth This graph shows the aggregate transfer rate to the storage systems as a function of time of day. The red line is the peak bandwidth observed within each one minute

  7. Contribution of charge-transfer processes to ion-induced electron emission

    SciTech Connect (OSTI)

    Roesler, M.

    1996-12-01

    Charge changing events of ions moving inside metals are shown to contribute significantly to electron emission in the intermediate velocity regime via electrons coming from projectile ionization. Inclusion of equilibrium charge state fractions, together with two-electron Auger processes and resonant-coherent electron loss from the projectile, results in reasonable agreement with previous calculations for frozen protons, though a significant part of the emission is now interpreted in terms of charge exchange. The quantal character of the surface barrier transmission is shown to play an important role. The theory compares well with experimental observations for {ital H} projectiles. {copyright} {ital 1996 The American Physical Society.}

  8. Sulfur oxidation to sulfate coupled with electron transfer to electrodes by Desulfuromonas strain TZ1

    SciTech Connect (OSTI)

    Zhang, T; Bain, TS; Barlett, MA; Dar, SA; Snoeyenbos-West, OL; Nevin, KP; Lovley, DR

    2014-01-02

    Microbial oxidation of elemental sulfur with an electrode serving as the electron acceptor is of interest because this may play an important role in the recovery of electrons from sulfidic wastes and for current production in marine benthic microbial fuel cells. Enrichments initiated with a marine sediment inoculum, with elemental sulfur as the electron donor and a positively poised (+300 mV versus Ag/AgCl) anode as the electron acceptor, yielded an anode biofilm with a diversity of micro-organisms, including Thiobacillus, Sulfurimonas, Pseudomonas, Clostridium and Desulfuromonas species. Further enrichment of the anode biofilm inoculum in medium with elemental sulfur as the electron donor and Fe(III) oxide as the electron acceptor, followed by isolation in solidified sulfur/Fe(III) medium yielded a strain of Desulfuromonas, designated strain TZ1. Strain TZ1 effectively oxidized elemental sulfur to sulfate with an anode serving as the sole electron acceptor, at rates faster than Desulfobulbus propionicus, the only other organism in pure culture previously shown to oxidize S with current production. The abundance of Desulfuromonas species enriched on the anodes of marine benthic fuel cells has previously been interpreted as acetate oxidation driving current production, but the results presented here suggest that sulfur-driven current production is a likely alternative.

  9. Probing the dependence of electron transfer on size and coverage in carbon nanotube-quantum dot heterostructures

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

    Wang, Lei; Wong, Stanislaus S.; Han, Jinkyu; Zhu, Yuqi; Jaye, Cherno; Liu, Haiqing; Li, Zhuo -Qun; Taylor, Gordon T.; Fischer, Daniel A.; Appenzeller, Joerg; et al

    2015-11-16

    As a model system for understanding charge transfer in novel architectural designs for solar cells, double-walled carbon nanotube (DWNT)–CdSe quantum dot (QD) (QDs with average diameters of 2.3, 3.0, and 4.1 nm) heterostructures have been fabricated. The individual nanoscale building blocks were successfully attached and combined using a hole-trapping thiol linker molecule, i.e., 4-mercaptophenol (MTH), through a facile, noncovalent π–π stacking attachment strategy. Transmission electron microscopy confirmed the attachment of QDs onto the external surfaces of the DWNTs. We herein demonstrate a meaningful and unique combination of near-edge X-ray absorption fine structure (NEXAFS) and Raman spectroscopies bolstered by complementary electricalmore » transport measurements in order to elucidate the synergistic interactions between CdSe QDs and DWNTs, which are facilitated by the bridging MTH molecules that can scavenge photoinduced holes and potentially mediate electron redistribution between the conduction bands in CdSe QDs and the C 2p-derived states of the DWNTs. Specifically, we correlated evidence of charge transfer as manifested by (i) changes in the NEXAFS intensities of π* resonance in the C K-edge and Cd M3-edge spectra, (ii) a perceptible outer tube G-band downshift in frequency in Raman spectra, as well as (iii) alterations in the threshold characteristics present in transport data as a function of CdSe QD deposition onto the DWNT surface. Furthermore, the separate effects of (i) varying QD sizes and (ii) QD coverage densities on the electron transfer were independently studied.« less

  10. Probing the dependence of electron transfer on size and coverage in carbon nanotube-quantum dot heterostructures

    SciTech Connect (OSTI)

    Wang, Lei; Wong, Stanislaus S.; Han, Jinkyu; Zhu, Yuqi; Jaye, Cherno; Liu, Haiqing; Li, Zhuo -Qun; Taylor, Gordon T.; Fischer, Daniel A.; Appenzeller, Joerg; Zhu, Ruiping

    2015-11-16

    As a model system for understanding charge transfer in novel architectural designs for solar cells, double-walled carbon nanotube (DWNT)–CdSe quantum dot (QD) (QDs with average diameters of 2.3, 3.0, and 4.1 nm) heterostructures have been fabricated. The individual nanoscale building blocks were successfully attached and combined using a hole-trapping thiol linker molecule, i.e., 4-mercaptophenol (MTH), through a facile, noncovalent π–π stacking attachment strategy. Transmission electron microscopy confirmed the attachment of QDs onto the external surfaces of the DWNTs. We herein demonstrate a meaningful and unique combination of near-edge X-ray absorption fine structure (NEXAFS) and Raman spectroscopies bolstered by complementary electrical transport measurements in order to elucidate the synergistic interactions between CdSe QDs and DWNTs, which are facilitated by the bridging MTH molecules that can scavenge photoinduced holes and potentially mediate electron redistribution between the conduction bands in CdSe QDs and the C 2p-derived states of the DWNTs. Specifically, we correlated evidence of charge transfer as manifested by (i) changes in the NEXAFS intensities of π* resonance in the C K-edge and Cd M3-edge spectra, (ii) a perceptible outer tube G-band downshift in frequency in Raman spectra, as well as (iii) alterations in the threshold characteristics present in transport data as a function of CdSe QD deposition onto the DWNT surface. Furthermore, the separate effects of (i) varying QD sizes and (ii) QD coverage densities on the electron transfer were independently studied.

  11. Probing the nature of electron transfer in metalloproteins on graphene-family materials as nanobiocatalytic scaffold using electrochemistry

    SciTech Connect (OSTI)

    Gupta, Sanju; Irihamye, Aline

    2015-03-15

    Graphene-based nanomaterials have shown great promise not only in nanoelectronics due to ultrahigh electron mobility but also as biocatalytic scaffolds owing to irreversible protein surface adsorption and facilitating direct electron transfer. In this work, we synthesized stable dispersions of graphene using liquid-phase exfoliation approach based on non-covalent interactions between graphene and 1-pyrenesulfonic acid sodium salt (Py–1SO{sub 3}), 1-pyrenemethylamine salt (Py − Me-NH{sub 2}) and Pluronic{sup ®} P-123 surfactant using only water as solvent compatible with biomolecules. The resulting graphene nanoplatelets (Gr-LPE) are characterized by a combination of analytical (microscopy and spectroscopy) techniques revealing mono- to few-layer graphene displaying that the exfoliation efficiency strongly depends upon the type of pyrene-based salts and organic surfactants. Moreover being completely water-based approach, we build robust nanoscaffolds of graphene-family nanomaterials (GFNs) namely, monolayer graphene, Gr-LPE (the one prepared with Pluronic{sup ®} P-123), graphene oxide (GO) and its reduced form (rGO) on glassy carbon electrode surface with three important metalloproteins include cytochrome c (Cyt c) [for electron transfer], myoglobin (Mb) [for oxygen storage] and horseradish peroxidase (HRP) [for catalyzing the biochemical reaction]. In order to demonstrate the nanobiocatalytical activity of these proteins, we used electrochemical interfacial direct electron transfer (DET) kinetics and attempt to determine the rate constant (k{sub ET}) using two different analytical approaches namely, linear sweep voltammetry and Laviron’s theory. We elucidated that all of the metalloproteins retain their structural integrity (secondary structure) upon forming mixtures with GFNs confirmed through optical and vibrational spectroscopy and biological activity using electrochemistry. Among the GFNs studied, Gr-LPE, GO and rGO support the efficient electrical wiring of the redox centers (with an increase in catalytic efficiency of Cyt c and Mb in the presence of GFNs attributed partially to the surface functional (carboxyl, epoxide and hydroxyl) groups on GO and rGO facilitating rapid charge transfer.

  12. Hopper File Management Tool (Conference) | SciTech Connect

    Office of Scientific and Technical Information (OSTI)

    Conference: Hopper File Management Tool Citation Details In-Document Search Title: Hopper File Management Tool Hopper is a powerful interactive tool that allows users to transfer and manipulate files and directories by means of a graphical user interface. Users can connect to and manage resources using the major file transfer protocols. Implemented in Java, Hopper can be run almost anywhere: from an individual's desktop machine to large production machines. In a high-performance computing

  13. Blinking suppression of CdTe quantum dots on epitaxial graphene and the analysis with Marcus electron transfer

    SciTech Connect (OSTI)

    Hirose, Takuya; Tamai, Naoto, E-mail: tamai@kwansei.ac.jp [Department of Chemistry, School of Science and Technology, Kwansei Gakuin University, 2-1 Gakuen, Sanda, Hyogo 669-1337 (Japan); Kutsuma, Yasunori; Kurita, Atsusi; Kaneko, Tadaaki [Department of Physics, School of Science and Technology, Kwansei Gakuin University, 2-1 Gakuen, Sanda, Hyogo 669-1337 (Japan)

    2014-08-25

    We have prepared epitaxial graphene by a Si sublimation method from 4H-SiC. Single-particle spectroscopy of CdTe quantum dots (QDs) on epitaxial graphene covered with polyvinylpyrrolidone (PVP) or polyethylene glycol (PEG) showed the suppression of luminescence blinking and ?10 times decreased luminescence intensity as compared with those on a glass. The electronic coupling constant, H{sub 01}, between CdTe QDs and graphene was calculated to be (3.3??0.4)??10{sup 2?}cm{sup ?1} in PVP and (3.7??0.8)??10{sup 2?}cm{sup ?1} in PEG based on Marcus theory of electron transfer and Tang-Marcus model of blinking with statistical distribution.

  14. Communication: Microsecond dynamics of the protein and water affect electron transfer in a bacterial bc{sub 1} complex

    SciTech Connect (OSTI)

    Martin, Daniel R.; Matyushov, Dmitry V.

    2015-04-28

    Cross-membrane electron transport between cofactors localized in proteins of mitochondrial respiration and bacterial photosynthesis is the source of all biological energy. The statistics and dynamics of nuclear fluctuations in these protein/membrane/water heterogeneous systems are critical for their energetic efficiency. The results of 13 ?s of atomistic molecular dynamics simulations of the membrane-bound bc{sub 1} bacterial complex are analyzed here. The reaction is affected by a broad spectrum of nuclear modes, with the slowest dynamics in the range of time-scales ?0.1-1.6 ?s contributing half of the reaction reorganization energy. Two reorganization energies are required to describe protein electron transfer due to dynamical arrest of protein conformations on the observation window. This mechanistic distinction allows significant lowering of activation barriers for reactions in proteins.

  15. Data Storage & File Systems | Argonne Leadership Computing Facility

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

    BG/Q File Systems Disk Quota Using HPSS Compiling & Linking Queueing & Running Jobs Data Transfer Debugging & Profiling Performance Tools & APIs Software & Libraries IBM References Cooley Policies Documentation Feedback Please provide feedback to help guide us as we continue to build documentation for our new computing resource. [Feedback Form] Data Storage & File Systems BG/Q File Systems BG/Q File Systems: An overview of the BG/Q file systems available at ALCF. Disk

  16. Electron transfer activation of a second water channel for proton transport in [FeFe]-hydrogenase

    SciTech Connect (OSTI)

    Sode, Olaseni; Voth, Gregory A.

    2014-12-14

    Hydrogenase enzymes are important because they can reversibly catalyze the production of molecular hydrogen. Proton transport mechanisms have been previously studied in residue pathways that lead to the active site of the enzyme via residues Cys299 and Ser319. The importance of this pathway and these residues has been previously exhibited through site-specific mutations, which were shown to interrupt the enzyme activity. It has been shown recently that a separate water channel (WC2) is coupled with electron transport to the active site of the [FeFe]-hydrogenase. The water-mediated proton transport mechanisms of the enzyme in different electronic states have been studied using the multistate empirical valence bond reactive molecular dynamics method, in order to understand any role WC2 may have in facilitating the residue pathway in bringing an additional proton to the enzyme active site. In a single electronic state A{sup 2?}, a water wire was formed through which protons can be transported with a low free energy barrier. The remaining electronic states were shown, however, to be highly unfavorable to proton transport in WC2. A double amino acid substitution is predicted to obstruct proton transport in electronic state A{sup 2-} by closing a cavity that could otherwise fill with water near the proximal Fe of the active site.

  17. Role of quinones in electron transfer of PQQ–glucose dehydrogenase anodes—mediation or orientation effect

    SciTech Connect (OSTI)

    Babanova, Sofia; Matanovic, Ivana; Chavez, Madelaine Seow; Atanassov, Plamen

    2015-06-16

    In this study, the influence of two quinones (1,2- and 1,4-benzoquinone) on the operation and mechanism of electron transfer in PQQ-sGDH anodes has been determined. Benzoquinones were experimentally explored as mediators present in the electrolyte. The electrochemical performance of the PQQ–sGDH anodes with and without the mediators was examined and for the first time molecular docking simulations were used to gain a fundamental understanding to explain the role of the mediator molecules in the design and operation of the enzymatic electrodes. It was proposed that the higher performance of the PQQ–sGDH anodes in the presence of 1,2- and 1,4-benzoquinones introduced in the solution is due to the shorter distance between these molecules and PQQ in the enzymatic molecule. It was also hypothesized that when 1,4-benzoquinone is adsorbed on a carbon support, it would play the dual role of a mediator and an orienting agent. At the same time, when 1,2-benzoquinone and ubiquinone are adsorbed on the electrode surface, the enzyme would transfer the electrons directly to the support, and these molecules would primarily play the role of an orienting agent.

  18. Final Report: The Impact of Carbonate on Surface Protonation, Electron Transfer and Crystallization Reactions in Iron Oxide Nanoparticles and Colloids

    SciTech Connect (OSTI)

    Dixon, David Adams

    2013-07-02

    This project addresses key issues of importance in the geochemical behavior of iron oxides and in the geochemical cycling of carbon and iron. For Fe, we are specifically studying the influence of carbonate on electron transfer reactions, solid phase transformations, and the binding of carbonate to reactive sites on the edges of particles. The emphasis on carbonate arises because it is widely present in the natural environment, is known to bind strongly to oxide surfaces, is reactive on the time scales of interest, and has a speciation driven by acid-base reactions. The geochemical behavior of carbonate strongly influences global climate change and CO{sub 2} sequestration technologies. Our goal is to answer key questions with regards to specific site binding, electron transfer reactions, and crystallization reactions of iron oxides that impact both the geochemical cycling of iron and CO{sub 2} species. Our work is focused on the molecular level description of carbonate chemistry in solution including the prediction of isotope fractionation factors. We have also done work on critical atmospheric species.

  19. Role of Quinones in Electron Transfer of PQQ–Glucose Dehydrogenase Anodes—Mediation or Orientation Effect

    SciTech Connect (OSTI)

    Babanova, Sofia; Matanovic, Ivana; Chavez, Madelaine Seow; Atanassov, Plamen

    2015-06-24

    In this study, the influence of two quinones (1,2- and 1,4-benzoquinone) on the operation and mechanism of electron transfer in PQQ-dependent glucose dehydrogenase (PQQ–sGDH) anodes has been determined. Benzoquinones were experimentally explored as mediators present in the electrolyte. The electrochemical performance of the PQQ–sGDH anodes with and without the mediators was examined and for the first time molecular docking simulations were used to gain a fundamental understanding to explain the role of the mediator molecules in the design and operation of the enzymatic electrodes. It was proposed that the higher performance of the PQQ–sGDH anodes in the presence of 1,2- and 1,4-benzoquinones introduced in the solution is due to the shorter distance between these molecules and PQQ in the enzymatic molecule. It was also hypothesized that when 1,4-benzoquinone is adsorbed on a carbon support, it would play the dual role of a mediator and an orienting agent. At the same time, when 1,2-benzoquinone and ubiquinone are adsorbed on the electrode surface, the enzyme would transfer the electrons directly to the support, and these molecules would primarily play the role of an orienting agent.

  20. Role of quinones in electron transfer of PQQ–glucose dehydrogenase anodes—mediation or orientation effect

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

    Babanova, Sofia; Matanovic, Ivana; Chavez, Madelaine Seow; Atanassov, Plamen

    2015-06-16

    In this study, the influence of two quinones (1,2- and 1,4-benzoquinone) on the operation and mechanism of electron transfer in PQQ-sGDH anodes has been determined. Benzoquinones were experimentally explored as mediators present in the electrolyte. The electrochemical performance of the PQQ–sGDH anodes with and without the mediators was examined and for the first time molecular docking simulations were used to gain a fundamental understanding to explain the role of the mediator molecules in the design and operation of the enzymatic electrodes. It was proposed that the higher performance of the PQQ–sGDH anodes in the presence of 1,2- and 1,4-benzoquinones introducedmore » in the solution is due to the shorter distance between these molecules and PQQ in the enzymatic molecule. It was also hypothesized that when 1,4-benzoquinone is adsorbed on a carbon support, it would play the dual role of a mediator and an orienting agent. At the same time, when 1,2-benzoquinone and ubiquinone are adsorbed on the electrode surface, the enzyme would transfer the electrons directly to the support, and these molecules would primarily play the role of an orienting agent.« less

  1. 1987 RECS Public Use Microdata Files

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

    cvs file File 3: Type of Energy and Equipment text file cvs file File 4: Household Demographics text file cvs file File 5: Presence of Appliances text file cvs file File 6: Energy...

  2. Data Transfer Nodes

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

    Data Transfer Nodes HPSS Data Archive I/O Resources for Scientific Applications at NERSC Optimizing I/O performance on the Lustre file system I/O Formats Science Databases Sharing Data Transferring Data Unix Groups at NERSC Unix File Permissions Data & Analytics Connecting to NERSC Queues and Scheduling Job Logs & Statistics Application Performance Training & Tutorials Software Policies User Surveys NERSC Users Group User Announcements Help Staff Blogs Request Repository Mailing

  3. Nanowires, Capacitors, and Other Novel Outer-Surface Components Involved in Electron Transfer to Fe(III) Oxides in Geobacter Species

    SciTech Connect (OSTI)

    Lovley, Derek, R.

    2008-12-22

    The overall goal of this project was to better understand the mechanisms by which Geobacter species transfer electrons outside the cell onto Fe(III) oxides. The rationale for this study was that Geobacter species are often the predominant microorganisms involved in in situ uranium bioremediation and the growth and activity of the Geobacter species during bioremediation is primarily supported by electron transfer to Fe(III) oxides. These studies greatly expanded the understanding of electron transfer to Fe(III). Novel concepts developed included the potential role of microbial nanowires for long range electron transfer in Geobacter species and the importance of extracytoplasmic cytochromes functioning as capacitors to permit continued electron transfer during the hunt for Fe(III) oxide. Furthermore, these studies provided target sequences that were then used in other studies to tract the activity of Geobacter species in the subsurface through monitoring the abundance of gene transcripts of the target genes. A brief summary of the major accomplishments of the project is provided.

  4. Ensemble density functional theory method correctly describes bond dissociation, excited state electron transfer, and double excitations

    SciTech Connect (OSTI)

    Filatov, Michael; Huix-Rotllant, Miquel; Burghardt, Irene

    2015-05-14

    State-averaged (SA) variants of the spin-restricted ensemble-referenced Kohn-Sham (REKS) method, SA-REKS and state-interaction (SI)-SA-REKS, implement ensemble density functional theory for variationally obtaining excitation energies of molecular systems. In this work, the currently existing version of the SA-REKS method, which included only one excited state into the ensemble averaging, is extended by adding more excited states to the averaged energy functional. A general strategy for extension of the REKS-type methods to larger ensembles of ground and excited states is outlined and implemented in extended versions of the SA-REKS and SI-SA-REKS methods. The newly developed methods are tested in the calculation of several excited states of ground-state multi-reference systems, such as dissociating hydrogen molecule, and excited states of donor–acceptor molecular systems. For hydrogen molecule, the new method correctly reproduces the distance dependence of the lowest excited state energies and describes an avoided crossing between the doubly excited and singly excited states. For bithiophene–perylenediimide stacked complex, the SI-SA-REKS method correctly describes crossing between the locally excited state and the charge transfer excited state and yields vertical excitation energies in good agreement with the ab initio wavefunction methods.

  5. More stable hybrid organic solar cells deposited on amorphous Si electron transfer layer

    SciTech Connect (OSTI)

    Samiee, Mehran; Modtland, Brian; Dalal, Vikram L.; Aidarkhanov, Damir

    2014-05-26

    We report on defect densities, performance, and stability of organic/inorganic hybrid solar cells produced using n-doped inorganic amorphous silicon-carbide layers as the electron transport layer (ETL). The organic material was poly-3-hexyl-thiophene (P3HT) and heterojunction was formed using phenyl-C{sub 71}-Butyric-Acid-Methyl Ester (PCBM). For comparison, inverted solar cells fabricated using Cs{sub 2}CO{sub 3} as ETL were fabricated. Defect densities and subgap quantum efficiency curves were found to be nearly identical for both types of cells. The cells were subjected to 2xsun illumination and it was found that the cells produced using doped a-Si as ETL were much more stable than the cells produced using Cs{sub 2}CO{sub 3}.

  6. FileSys.pptx

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

    Navigating NERSC File Systems May 3, 2011 David Turner NERSC User Services Group * Focus on user-writable file systems * Global file systems * Local file systems * Policies * Performance * Data movement * Data sharing * Platform summary * Hopper, Franklin, Carver/Magellan, Euclid, Datatrans (dtn01/dtn02) Overview * Some file systems are backed up for disaster recovery (of entire file system). * Some file systems are not backed up at all. * Restoration of individual files/directories is not

  7. Transition Metal Donor-Peptide-Acceptor Complexes: From Intramolecular Electron Transfer Reactions to the Study of Reactive Intermediates

    SciTech Connect (OSTI)

    Isied, Stephan S.

    2003-03-11

    The trans-polyproline (PII) oligomers (Figure 1) are unusually rigid peptide structures which have been extensively studied by our group for peptide mediated intramolecular electron transfer (ET) at long distances. We have previously studied ET across a series of metal ion donor (D) acceptor (A) oligoproline peptides with different distances, driving forces and reorganizational energies. The majority of these experiments involve generating the ET intermediate using pulse radiolysis methods, although more recently photochemical methods are also used. Results of these studies showed that ET across peptides can vary by more than twelve orders of magnitude. Using ruthenium bipyridine donors, ET reaction rate constants across several proline residues (n = 4 - 9) occurred in the millisecond (ms) to {micro}s timescale, thus limiting the proline peptide conformational motions to only minor changes (far smaller than the large changes that occur on the ms to sec timescale, such as trans to cis proline isomerization). The present report describes our large data base of experimental results for D-peptide-A complexes in terms of a model where the involvement of both superexchange and hopping (hole and electron) mechanisms account for the long range ET rate constants observed. Our data shows that the change from superexchange to hopping mechanisms occurs at different distances depending on the type of D and A and their interactions with the peptides. Our model is also consistent with generalized models for superexchange and hopping which have been put forward by a number of theoretical groups to account for long range ET phenomena.

  8. Electronic Coupling Dependence of Ultrafast Interfacial Electron...

    Office of Scientific and Technical Information (OSTI)

    Electron Transfer on Nanocrystalline Thin Films and Single Crystal Lian, Tianquan 14 SOLAR ENERGY The long-term goal of the proposed research is to understand electron transfer...

  9. BG/Q File Systems | Argonne Leadership Computing Facility

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

    BG/Q File Systems Disk Quota Using HPSS Compiling & Linking Queueing & Running Jobs Data Transfer Debugging & Profiling Performance Tools & APIs Software & Libraries IBM References Cooley Policies Documentation Feedback Please provide feedback to help guide us as we continue to build documentation for our new computing resource. [Feedback Form] BG/Q File Systems Vesta and Mira have discrete file systems, with two main user file systems for each machine: home and

  10. Data Transfer Examples

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

    » Data Transfer Examples Data Transfer Examples Moving data to Projectb Projectb is where data should be written from jobs running on the cluster or Gpints. There are intermediate files or bad results from a run that didn't work out that don't need to be saved. By running these jobs in the SCRATCH areas, these files will be deleted for you by the puge. If you run in the SANDBOX, you will have to clean up after yourselves. Batch Scheduled Transfers Use any queues to schedule jobs that move data

  11. NERSC File Systems

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

    Systems NERSC File Systems Overview NERSC file systems can be divided into two categories: local and global. Local file systems are only accessible on a single platform, providing best performance; global file systems are accessible on multiple platforms, simplifying data sharing between platforms. File systems are configured for different purposes. On each machine you have access to at least three different file system Home: Permanent, relatively small storage for data like source code, shell

  12. Accompanying coordinate expansion and recurrence relation method using a transfer relation scheme for electron repulsion integrals with high angular momenta and long contractions

    SciTech Connect (OSTI)

    Hayami, Masao; Seino, Junji; Nakai, Hiromi

    2015-05-28

    An efficient algorithm for the rapid evaluation of electron repulsion integrals is proposed. The present method, denoted by accompanying coordinate expansion and transferred recurrence relation (ACE-TRR), is constructed using a transfer relation scheme based on the accompanying coordinate expansion and recurrence relation method. Furthermore, the ACE-TRR algorithm is extended for the general-contraction basis sets. Numerical assessments clarify the efficiency of the ACE-TRR method for the systems including heavy elements, whose orbitals have long contractions and high angular momenta, such as f- and g-orbitals.

  13. CENTRAL FILES

    Office of Legacy Management (LM)

    / .- ~ _. ,- *-.* . . CENTRAL FILES +, a/ o(-t.z2-5 AlLO 1 Pab-FJr 3. 19% TYtxP REPaT To A&7bA cM.m rlmc)HA~ ON JANtJm 23, 1956 f. A. W~~~+Y, M.D. c. 1. 08huRann 8nd J. A. Hlaeririg ob3e8tilw of Trlpr in @ ttd~, (;rulw 2?), 1956, a ttip na nda to UM Crrrit &abw8tury, cword, Ohio. The purpow o? this trip u&a to aondwt the WMnd ti 8 #etia8 of indUrtF%al mgiene run~yr uhiah hre been Thwr8port ia 8 66mpondzLusofthe Amu4ll;rmtr forth&, rtsnyu@raaaderith~.~~M Alb8ugh,

  14. Catching the role of anisotropic electronic distribution and charge transfer in halogen bonded complexes of noble gases

    SciTech Connect (OSTI)

    Bartocci, Alessio; Cappelletti, David; Pirani, Fernando; Belpassi, Leonardo; Falcinelli, Stefano; Grandinetti, Felice; Tarantelli, Francesco

    2015-05-14

    The systems studied in this work are gas-phase weakly bound adducts of the noble-gas (Ng) atoms with CCl{sub 4} and CF{sub 4}. Their investigation was motivated by the widespread current interest for the intermolecular halogen bonding (XB), a structural motif recognized to play a role in fields ranging from elementary processes to biochemistry. The simulation of the static and dynamic behaviors of complex systems featuring XB requires the formulation of reliable and accurate model potentials, whose development relies on the detailed characterization of strength and nature of the interactions occurring in simple exemplary halogenated systems. We thus selected the prototypical Ng-CCl{sub 4} and Ng-CF{sub 4} and performed high-resolution molecular beam scattering experiments to measure the absolute scale of their intermolecular potentials, with high sensitivity. In general, we expected to probe typical van der Waals interactions, consisting of a combination of size (exchange) repulsion with dispersion/induction attraction. For the He/Ne-CF{sub 4}, the analysis of the glory quantum interference pattern, observable in the velocity dependence of the integral cross section, confirmed indeed this expectation. On the other hand, for the He/Ne/Ar-CCl{sub 4}, the scattering data unravelled much deeper potential wells, particularly for certain configurations of the interacting partners. The experimental data can be properly reproduced only including a shifting of the repulsive wall at shorter distances, accompanied by an increased role of the dispersion attraction, and an additional short-range stabilization component. To put these findings on a firmer ground, we performed, for selected geometries of the interacting complexes, accurate theoretical calculations aimed to evaluate the intermolecular interaction and the effects of the complex formation on the electron charge density of the constituting moieties. It was thus ascertained that the adjustments of the potential suggested by the analysis of the experiments actually reflect two chemically meaningful contributions, namely, a stabilizing interaction arising from the anisotropy of the charge distribution around the Cl atom in CCl{sub 4} and a stereospecific electron transfer that occurs at the intermolecular distances mainly probed by the experiments. Our model calculations suggest that the largest effect is for the vertex geometry of CCl{sub 4} while other geometries appear to play a minor to negligible role.

  15. On the Theory of Oxidation-Reduction Reactions Involving Electron Transfer. V. Comparison and Properties of Electrochemical and Chemical Rate Constants

    DOE R&D Accomplishments [OSTI]

    Marcus, R. A.

    1962-01-01

    Using a theory of electron transfers which takes cognizance of reorganization of the medium outside the inner coordination shell and of changes of bond lengths inside it, relations between electrochemical and related chemical rate constants are deduced and compared with the experimental data. A correlation is found, without the use of arbitrary parameters. Effects of weak complexes with added electrolytes are included under specified conditions. The deductions offer a way of coordinating a variety of data in the two fields, internally as well as with each those in another. For example, the rate of oxidation or reduction of a series of related reactants by one reagent is correlated with that of another and with that of the corresponding electrochemical oxidation-reduction reaction, under certain specified conditions. These correlations may also provide a test for distinguishing an electron from an atom transfer mechanism. (auth)

  16. NX Configuration File

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

    Configuration File NX Configuration File This is the NX configuration file that you will need to connect to NERSC NX Server: NX5Confgure.nxs.zip To use this file, please follow the Online Tutorial. Last edited: 2016-04-29 11:34:57

  17. Rational engineering of Geobacter sulfurreducens electron transfer components: A foundation for building improved Geobacter-based bioelectrochemical technologies

    SciTech Connect (OSTI)

    Dantas, Joana M.; Morgado, Leonor; Aklujkar, Muktak; Bruix, Marta; Londer, Yuri Y.; Schiffer, Marianne; Pokkuluri, P. Raj; Salgueiro, Carlos A.

    2015-07-30

    Multiheme cytochromes have been implicated in Geobacter sulfurreducens extracellular electron transfer (EET). These proteins are potential targets to improve EET and enhance bioremediation and electrical current production by G. sulfurreducens. However, the functional characterization of multiheme cytochromes is particularly complex due to the co-existence of several microstates in solution, connecting the fully reduced and fully oxidized states. Throughout the last decade, new strategies have been developed to characterize multiheme redox proteins functionally and structurally. These strategies were used to reveal the functional mechanism of G. sulfurreducens multiheme cytochromes and also to identify key residues in these proteins for EET. In previous studies, we set the foundations for enhancement of the EET abilities of G. sulfurreducens by characterizing a family of five triheme cytochromes (PpcA-E). These periplasmic cytochromes are implicated in electron transfer between the oxidative reactions of metabolism in the cytoplasm and the reduction of extracellular terminal electron acceptors at the cell's outer surface. The results obtained suggested that PpcA can couple e-/H+ transfer, a property that might contribute to the proton electrochemical gradient across the cytoplasmic membrane for metabolic energy production. The structural and functional properties of PpcA were characterized in detail and used for rational design of a family of 23 single site PpcA mutants. In this review, we summarize the functional characterization of the native and mutant proteins. Mutants that retain the mechanistic features of PpcA and adopt preferential e-/H+ transfer pathways at lower reduction potential values compared to the wild-type protein were selected for in vivo studies as the best candidates to increase the electron transfer rate of G. sulfurreducens. For the first time G. sulfurreducens strains have been manipulated by the introduction of mutant forms of essential proteins with the aim to develop and improve bioelectrochemical technologies.

  18. Please transfer ALL data off house

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

    Please transfer ALL data off /house before 12/1/2013 Please transfer ALL data off house September 3, 2013 by Kjiersten Fagnan We are happy to announce that all the file systems: /global/projectb, /global/dna and /webfs are available for use. We now strongly encourage users to begin the data transfer process from /house to the other file systems. House will retire on December 20, 2013! For more information on the best ways to transfer data and what each file system should be used for, check this

  19. Photo-induced water oxidation at the aqueous GaN (101¯0) interface: Deprotonation kinetics of the first proton-coupled electron-transfer step

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

    Ertem, Mehmed Z.; Kharche, Neerav; Batista, Victor S.; Hybertsen, Mark S.; Tully, John C.; Muckerman, James T.

    2015-03-12

    Photoeclectrochemical water splitting plays a key role in a promising path to the carbon-neutral generation of solar fuels. Wurzite GaN and its alloys (e.g., GaN/ZnO and InGaN) are demonstrated photocatalysts for water oxidation, and they can drive the overall water splitting reaction when coupled with co-catalysts for proton reduction. In the present work, we investigate the water oxidation mechanism on the prototypical GaN (101¯0) surface using a combined ab initio molecular dynamics and molecular cluster model approach taking into account the role of water dissociation and hydrogen bonding within the first solvation shell of the hydroxylated surface. The investigation ofmore » free-energy changes for the four proton-coupled electron-transfer (PCET) steps of the water oxidation mechanism shows that the first PCET step for the conversion of –Ga-OH to –Ga-O˙⁻ requires the highest energy input. We further examine the sequential PCETs, with the proton transfer (PT) following the electron transfer (ET), and find that photo-generated holes localize on surface –NH sites is thermodynamically more favorable than –OH sites. However, proton transfer from –OH sites with subsequent localization of holes on oxygen atoms is kinetically favored owing to hydrogen bonding interactions at the GaN (101¯0)–water interface. We find that the deprotonation of surface –OH sites is the limiting factor for the generation of reactive oxyl radical ion intermediates and consequently for water oxidation.« less

  20. Photo-induced water oxidation at the aqueous GaN (1010) interface: Deprotonation kinetics of the first proton-coupled electron-transfer step

    SciTech Connect (OSTI)

    Ertem, Mehmed Z.; Kharche, Neerav; Batista, Victor S.; Hybertsen, Mark S.; Tully, John C.; Muckerman, James T.

    2015-03-12

    Photoeclectrochemical water splitting plays a key role in a promising path to the carbon-neutral generation of solar fuels. Wurzite GaN and its alloys (e.g., GaN/ZnO and InGaN) are demonstrated photocatalysts for water oxidation, and they can drive the overall water splitting reaction when coupled with co-catalysts for proton reduction. In the present work, we investigate the water oxidation mechanism on the prototypical GaN (1010) surface using a combined ab initio molecular dynamics and molecular cluster model approach taking into account the role of water dissociation and hydrogen bonding within the first solvation shell of the hydroxylated surface. The investigation of free-energy changes for the four proton-coupled electron-transfer (PCET) steps of the water oxidation mechanism shows that the first PCET step for the conversion of Ga-OH to Ga-O?? requires the highest energy input. We further examine the sequential PCETs, with the proton transfer (PT) following the electron transfer (ET), and find that photo-generated holes localize on surface NH sites is thermodynamically more favorable than OH sites. However, proton transfer from OH sites with subsequent localization of holes on oxygen atoms is kinetically favored owing to hydrogen bonding interactions at the GaN (1010)water interface. We find that the deprotonation of surface OH sites is the limiting factor for the generation of reactive oxyl radical ion intermediates and consequently for water oxidation.

  1. Fast Global File Status

    Energy Science and Technology Software Center (OSTI)

    2013-01-01

    Fast Global File Status (FGFS) is a system software package that implimints a scalable mechanism to retrieve file information, such as its degree of distribution or replication and consistency.

  2. Standard interface file handbook

    SciTech Connect (OSTI)

    Shapiro, A.; Huria, H.C. )

    1992-10-01

    This handbook documents many of the standard interface file formats that have been adopted by the US Department of Energy to facilitate communications between and portability of, various large reactor physics and radiation transport software packages. The emphasis is on those files needed for use of the VENTURE/PC diffusion-depletion code system. File structures, contents and some practical advice on use of the various files are provided.

  3. Unix File Permissions

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

    File Permissions Unix File Permissions Brief Overview of Unix File Permissions Every file (and directory) has an owner, an associated Unix group, and a set of permission flags that specify separate read, write, and execute permissions for the "user" (owner), "group", and "other". Group permissions apply to all users who belong to the group associated with the file. "Other" is also sometimes known as "world" permissions, and applies to all users

  4. Eliza File Systems

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

    Eliza File Systems Eliza File Systems Storage at PDSF is organized by group and available to all the nodes in PDSF. Please note that files on these file systems are not backed up. It is the responsibility of users to back up their files themselves as necessary. Over the years at PDSF there have been incidents which resulted in a loss of data from disk, often related to aging hardware. You can display the UGE io units with the command "qconf -se global". Disk Vault Experiments SGE io

  5. Theoretical analysis of the sequential proton-coupled electron transfer mechanisms for H2 oxidation and production pathways catalyzed by nickel molecular electrocatalysts

    SciTech Connect (OSTI)

    Fernandez, Laura; Horvath, Samantha; Hammes-Schiffer, Sharon

    2012-02-02

    The design of electrocatalysts for the oxidation and production of H2 is important for the development of alternative energy sources. This paper focuses on the electrocatalysts, where denotes 1,5-diaza-3,7-diphosphacyclooctane ligands with substituent groups R and R' covalently bound to the phosphorus and nitrogen atoms, respectively. Theoretical methods are used to investigate the mechanism of the step in the catalytic cycle corresponding to e ? for H2 oxidation and the reverse reaction for H2 production. This step involves electron transfer (ET) between the Ni complex and the electrode as well as proton transfer (PT) between the Ni and the N. The sequential mechanisms, PTET and ETPT, are investigated for the following (R,R) substituents: (Me,Me), (Ph,Ph), and (Ph,Bz), where Me, Ph, and Bz denote methyl, phenyl, and benzyl substituents. Density functional theory is used to calculate reduction potentials, pKas, and PT pathways, and Marcus theory is used to describe the electrochemical electron transfer, including the effects of solute and solvent reorganization energies. For the (Ph,Ph) and (Ph,Bz) systems, the sequential PTET mechanism would require surmounting a large free energy barrier for the initial PT step, followed by thermodynamically favorable or thermoneutral ET. The sequential ETPT mechanism for these systems would require a relatively large initial applied overpotential, followed by a PT reaction with a relatively low free energy barrier. Consistent with experimental data, the calculated overpotential required for the initial reduction in the ETPT mechanism is lower for the (Ph,Bz) system than for the (Ph,Ph) system. The concerted mechanism, in which the electron and proton transfer simultaneously without a stable intermediate, may be thermodynamically favorable and is a direction of future research. This material is based upon work supported as part of the Center for Molecular Electrocatalysis, an Energy Frontier Research Center funded by the US Department of Energy, Office of Science, Office of Basic Energy Sciences under FWP56073.

  6. Photoreactivity of ZnO nanoparticles in visible light: Effect of surface states on electron transfer reaction

    SciTech Connect (OSTI)

    Baruah, Sunandan; Dutta, Joydeep; Sinha, Sudarson Sekhar; Ghosh, Barnali; Pal, Samir Kumar; Raychaudhuri, A. K.

    2009-04-01

    Wide band gap metal oxide semiconductors such as zinc oxide (ZnO) show visible band photolysis that has been employed, among others, to degrade harmful organic contaminants into harmless mineral acids. Metal oxides show enhanced photocatalytic activity with the increase in electronic defects in the crystallites. By introducing defects into the crystal lattice of ZnO nanoparticles, we observe a redshift in the optical absorption shifting from the ultraviolet region to the visible region (400-700 nm), which is due to the creation of intermediate defect states that inhibit the electron hole recombination process. The defects were introduced by fast nucleation and growth of the nanoparticles by rapid heating using microwave irradiation and subsequent quenching during the precipitation reaction. To elucidate the nature of the photodegradation process, picosecond resolved time correlated single photon count (TCSPC) spectroscopy was carried out to record the electronic transitions resulting from the de-excitation of the electrons to their stable states. Photodegradation and TCSPC studies showed that defect engineered ZnO nanoparticles obtained through fast crystallization during growth lead to a faster initial degradation rate of methylene blue as compared to the conventionally synthesized nanoparticles.

  7. Electron

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

    Electron thermal transport within magnetic islands in the reversed-field pinch a... H. D. Stephens, 1,b͒ D. J. Den Hartog, 1,3 C. C. Hegna, 1,2 and J. A. Reusch 1 1 Department of Physics, University of Wisconsin-Madison, 1150 University Ave., Madison, Wisconsin 53706, USA 2 Department of Engineering Physics, University of Wisconsin-Madison, 1500 Engineering Drive, Madison, Wisconsin 53706, USA 3 Center for Magnetic Self-Organization in Laboratory and Astrophysical Plasmas, University of

  8. Quenching of electron transfer reactions through coadsorption: A study of oxygen photodesorption from TiO2(110)

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

    Petrik, Nikolay G.; Kimmel, Greg A.; Shen, Mingmin; Henderson, Michael A.

    2016-01-11

    Using temperature programmed desorption (TPD) and photon-stimulated desorption (PSD), we show that coadsorbates of varying binding energies on the rutile TiO2(110) surface exert a commensurate inhibiting influence on the hole-mediated photodesorption of adsorbed O2. A variety of coadsorbates (Ar, Kr, Xe, N2, CO, CO2, CH4, N2O, acetone, methanol or water) were shown to quench O2 photoactivity, with the extent correlating with the coadsorbate's gas phase basicity, which in turn determines the strength of the coadsorbate–Ti4+ bond. Coadsorbed rare gases inhibited the photodesorption of O2 by ~ 10–25%, whereas strongly bound species (water, methanol, and acetone) nearly completely inhibited O2 PSD.more » We suggest that coadsorption of these molecules inhibit the arrival probability of holes to the surface. Band-bending effects, which vary with the extent of charge transfer between the coadsorbate and the TiO2(110) surface, are not expected to be significant in the cases of the rare gases and physisorbed species. Furthermore, these results indicate that neutral coadsorbates can exert a significant influence on charge transfer events by altering the interfacial dipole in the vicinity of the target molecule.« less

  9. Numerical modeling of heat-transfer and the influence of process parameters on tailoring the grain morphology of IN718 in electron beam additive manufacturing

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

    Raghavan, Narendran; Dehoff, Ryan; Pannala, Sreekanth; Simunovic, Srdjan; Kirka, Michael; Turner, John; Carlson, Neil; Babu, Sudarsanam S.

    2016-04-26

    The fabrication of 3-D parts from CAD models by additive manufacturing (AM) is a disruptive technology that is transforming the metal manufacturing industry. The correlation between solidification microstructure and mechanical properties has been well understood in the casting and welding processes over the years. This paper focuses on extending these principles to additive manufacturing to understand the transient phenomena of repeated melting and solidification during electron beam powder melting process to achieve site-specific microstructure control within a fabricated component. In this paper, we have developed a novel melt scan strategy for electron beam melting of nickel-base superalloy (Inconel 718) andmore » also analyzed 3-D heat transfer conditions using a parallel numerical solidification code (Truchas) developed at Los Alamos National Laboratory. The spatial and temporal variations of temperature gradient (G) and growth velocity (R) at the liquid-solid interface of the melt pool were calculated as a function of electron beam parameters. By manipulating the relative number of voxels that lie in the columnar or equiaxed region, the crystallographic texture of the components can be controlled to an extent. The analysis of the parameters provided optimum processing conditions that will result in columnar to equiaxed transition (CET) during the solidification. Furthermore, the results from the numerical simulations were validated by experimental processing and characterization thereby proving the potential of additive manufacturing process to achieve site-specific crystallographic texture control within a fabricated component.« less

  10. Data Transfer Considerations for ALS Scientists and Users

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

    and system administrators to consider: Using the right file transfer tools Instead of FTP or scp, use tools that have been designed specifically for high-speed data transfer. We...

  11. CSV File Documentation: Consumption

    Gasoline and Diesel Fuel Update (EIA)

    Consumption Estimates The State Energy Data System (SEDS) comma-separated value (CSV) files ... SG still gas SN special naphthas SO solar thermal and photovoltaic energy TE total ...

  12. File:Bureauofreclamationfactsheet.pdf | Open Energy Information

    Open Energy Info (EERE)

    Bureauofreclamationfactsheet.pdf Jump to: navigation, search File File history File usage Metadata File:Bureauofreclamationfactsheet.pdf Size of this preview: 463 599 pixels....

  13. File:20121127144703735.pdf | Open Energy Information

    Open Energy Info (EERE)

    20121127144703735.pdf Jump to: navigation, search File File history File usage File:20121127144703735.pdf Size of this preview: 463 599 pixels. Other resolution: 464 600...

  14. File:Windyclassroom.pdf | Open Energy Information

    Open Energy Info (EERE)

    Windyclassroom.pdf Jump to: navigation, search File File history File usage Metadata File:Windyclassroom.pdf Size of this preview: 463 599 pixels. Other resolution: 464 600...

  15. File:Npsfactsheet.pdf | Open Energy Information

    Open Energy Info (EERE)

    Npsfactsheet.pdf Jump to: navigation, search File File history File usage Metadata File:Npsfactsheet.pdf Size of this preview: 463 599 pixels. Other resolution: 464 600...

  16. File:Oregonshpodocumentationstandards.pdf | Open Energy Information

    Open Energy Info (EERE)

    Oregonshpodocumentationstandards.pdf Jump to: navigation, search File File history File usage File:Oregonshpodocumentationstandards.pdf Size of this preview: 463 599 pixels....

  17. File:Noaafactsheet.pdf | Open Energy Information

    Open Energy Info (EERE)

    Noaafactsheet.pdf Jump to: navigation, search File File history File usage Metadata File:Noaafactsheet.pdf Size of this preview: 463 599 pixels. Other resolution: 464 600...

  18. File:Drillinghandbook.pdf | Open Energy Information

    Open Energy Info (EERE)

    Drillinghandbook.pdf Jump to: navigation, search File File history File usage File:Drillinghandbook.pdf Size of this preview: 463 599 pixels. Other resolution: 464 600...

  19. File:Energydatabusfacthseet.pdf | Open Energy Information

    Open Energy Info (EERE)

    Energydatabusfacthseet.pdf Jump to: navigation, search File File history File usage Metadata File:Energydatabusfacthseet.pdf Size of this preview: 463 599 pixels. Other...

  20. File:Bonnevillepowerfactsheet.pdf | Open Energy Information

    Open Energy Info (EERE)

    Bonnevillepowerfactsheet.pdf Jump to: navigation, search File File history File usage Metadata File:Bonnevillepowerfactsheet.pdf Size of this preview: 463 599 pixels. Other...

  1. File storage and I/O

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

    File storage and IO File storage and IO Disk Quota Change Request Form Franklin File Systems The Franklin system has 4 different file systems mounted which provide different...

  2. Photoinduced electron transfer double fragmentation. An oxygen-mediated radical chain process in the cofragmentation of aminopinacol donors with organic halides

    SciTech Connect (OSTI)

    Chen, L.; Farahat, M.S.; Gan, H.; Whitten, D.G.; Farid, S. |

    1995-06-14

    We reprot an investigation in which excited states of amino pinacols 1-3 are reacted with the halides CCl{sub 4}, benzyl bromide, and p-cyanobenzyl bromide. Interesting results from this study include the finding that low-to-moderate quantum efficiencies for reaction are observed when the reactions are carried out under degassed conditions, indicating that the halide radical anions must survive long enough within the initial ion pair formed in the quenching step to undergo considerable return electron transfer. More strikingly we find that for certain pinacol-halide combinations reaction in aerared solutions leads to much higher efficiencies, which can be attributed to a chain reaction involving oxygen capture of a primary radical product. 25 refs., 1 fig., 1 tab.

  3. Optical characterization of free electron concentration in heteroepitaxial InN layers using Fourier transform infrared spectroscopy and a 2 Multiplication-Sign 2 transfer-matrix algebra

    SciTech Connect (OSTI)

    Katsidis, C. C.; Ajagunna, A. O.; Georgakilas, A.

    2013-02-21

    Fourier Transform Infrared (FTIR) reflectance spectroscopy has been implemented as a non-destructive, non-invasive, tool for the optical characterization of a set of c-plane InN single heteroepitaxial layers spanning a wide range of thicknesses (30-2000 nm). The c-plane (0001) InN epilayers were grown by plasma-assisted molecular beam epitaxy (PAMBE) on GaN(0001) buffer layers which had been grown on Al{sub 2}O{sub 3}(0001) substrates. It is shown that for arbitrary multilayers with homogeneous anisotropic layers having their principal axes coincident with the laboratory coordinates, a 2 Multiplication-Sign 2 matrix algebra based on a general transfer-matrix method (GTMM) is adequate to interpret their optical response. Analysis of optical reflectance in the far and mid infrared spectral range has been found capable to discriminate between the bulk, the surface and interface contributions of free carriers in the InN epilayers revealing the existence of electron accumulation layers with carrier concentrations in mid 10{sup 19} cm{sup -3} at both the InN surface and the InN/GaN interface. The spectra could be fitted with a three-layer model, determining the different electron concentration and mobility values of the bulk and of the surface and the interface electron accumulation layers in the InN films. The variation of these values with increasing InN thickness could be also sensitively detected by the optical measurements. The comparison between the optically determined drift mobility and the Hall mobility of the thickest sample reveals a value of r{sub H} = 1.49 for the Hall factor of InN at a carrier concentration of 1.11 Multiplication-Sign 10{sup 19} cm{sup -3} at 300 Degree-Sign {Kappa}.

  4. Register file soft error recovery

    DOE Patents [OSTI]

    Fleischer, Bruce M.; Fox, Thomas W.; Wait, Charles D.; Muff, Adam J.; Watson, III, Alfred T.

    2013-10-15

    Register file soft error recovery including a system that includes a first register file and a second register file that mirrors the first register file. The system also includes an arithmetic pipeline for receiving data read from the first register file, and error detection circuitry to detect whether the data read from the first register file includes corrupted data. The system further includes error recovery circuitry to insert an error recovery instruction into the arithmetic pipeline in response to detecting the corrupted data. The inserted error recovery instruction replaces the corrupted data in the first register file with a copy of the data from the second register file.

  5. File:DIAsample.pdf | Open Energy Information

    Open Energy Info (EERE)

    DIAsample.pdf Jump to: navigation, search File File history File usage File:DIAsample.pdf Size of this preview: 776 600 pixels. Full resolution (1,650 1,275 pixels, file...

  6. MEMORANDUM TO: FILE FROM:

    Office of Legacy Management (LM)

    p' : , .; ' ' < 3.518 MEMORANDUM TO: FILE FROM: -Ye L&a ---...e---e--- DATE 6j88 7 v---s -- ---... SUBJECT: ;&l a+-b IA Tcornqm Q afib4 SITE NAME: CITY: & &&at leg co ...

  7. EIA-176 Electronic Filing System (EFS)

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

    Administration (EIA), U.S. Department of Energy (DOE), to fulfill its responsibilities ... 7, 8, or 10) At least 20.0 megabytes of free disk space on the hard drive Downloading ...

  8. Construction of file database management

    SciTech Connect (OSTI)

    MERRILL,KYLE J.

    2000-03-01

    This work created a database for tracking data analysis files from multiple lab techniques and equipment stored on a central file server. Experimental details appropriate for each file type are pulled from the file header and stored in a searchable database. The database also stores specific location and self-directory structure for each data file. Queries can be run on the database according to file type, sample type or other experimental parameters. The database was constructed in Microsoft Access and Visual Basic was used for extraction of information from the file header.

  9. File:NREL-banglmetst-221.pdf | Open Energy Information

    Open Energy Info (EERE)

    File Edit with form History File:NREL-banglmetst-221.pdf Jump to: navigation, search File File history File usage Selected Meteorological Stations and Elevation Size of this...

  10. Setting up File Permissions

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

    Setting up File Permissions Setting up File Permissions Recommendations for Setting up "Shared" Directories This section shows the recommended commands for setting up shared directories. Please read the full page to get an understanding of what these commands are doing. These recommendations are based on the common use-case at the JGI for user/group read/write and global read access. Creating a New Shared Directory dmj@genepool04:~$ umask 002 # or have this set in .bashrc.ext

  11. Electronic Coupling Dependence of Ultrafast Interfacial Electron...

    Office of Scientific and Technical Information (OSTI)

    The long-term goal of the proposed research is to understand electron transfer dynamics in nanoparticleliquid interface. This knowledge is essential to many semiconductor ...

  12. Grid collector: An event catalog with automated file management

    SciTech Connect (OSTI)

    Wu, Kesheng; Zhang, Wei-Ming; Sim, Alexander; Gu, Junmin; Shoshani, Arie

    2003-10-17

    High Energy Nuclear Physics (HENP) experiments such as STAR at BNL and ATLAS at CERN produce large amounts of data that are stored as files on mass storage systems in computer centers. In these files, the basic unit of data is an event. Analysis is typically performed on a selected set of events. The files containing these events have to be located, copied from mass storage systems to disks before analysis, and removed when no longer needed. These file management tasks are tedious and time consuming. Typically, all events contained in the files are read into memory before a selection is made. Since the time to read the events dominate the overall execution time, reading the unwanted event needlessly increases the analysis time. The Grid Collector is a set of software modules that works together to address these two issues. It automates the file management tasks and provides ''direct'' access to the selected events for analyses. It is currently integrated with the STAR analysis framework. The users can select events based on tags, such as, ''production date between March 10 and 20, and the number of charged tracks > 100.'' The Grid Collector locates the files containing relevant events, transfers the files across the Grid if necessary, and delivers the events to the analysis code through the familiar iterators. There has been some research efforts to address the file management issues, the Grid Collector is unique in that it addresses the event access issue together with the file management issues. This makes it more useful to a large variety of users.

  13. File:S-38-Well-Construction-and-Modification-Permit.pdf | Open...

    Open Energy Info (EERE)

    S-38-Well-Construction-and-Modification-Permit.pdf Jump to: navigation, search File File history File usage File:S-38-Well-Construction-and-Modification-Permit.pdf Size of this...

  14. Transferring Data

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

    Transferring Data to and from NERSC Yushu Yao 1 Tuesday, March 8, 2011 Overview 2 * Structure of NERSC Systems and Disks * Data Transfer Nodes * Transfer Data from/to NERSC - scp/sftp - bbcp - GridFTP * Sharing Data Within NERSC Tuesday, March 8, 2011 Systems and Disks 3 System Hopper Franklin Carver Euclid Data Transfer Node PDSF Global Home ($HOME) Global Scratch ($GSCRATCH) Project Directory Local Non-shared Scratch Data transfer nodes can access most of the disks, suggested for transferring

  15. OHA Misc Cases Archive File

    Broader source: Energy.gov [DOE]

    This is a archive file of our Misc decisions, Please download this file to your local computer and use the build in adobe search feature. Individual cases are listed in the bookmark section of the...

  16. OHA FOIA Cases Archive File

    Broader source: Energy.gov [DOE]

    This is a archive file of our FOIA decisions, Please download this file to your local computer and use the build in adobe search feature. Individual cases are listed in the bookmark section of the...

  17. OHA Security Cases Archive File

    Broader source: Energy.gov [DOE]

    This is a archive file of our Security decisions, Please download this file to your local computer and use the build in adobe search feature. Individual cases are listed in the bookmark section of...

  18. OHA Whistleblower Cases Archive File

    Broader source: Energy.gov [DOE]

    This is a archive file of our Whistleblower decisions, Please download this file to your local computer and use the build in adobe search feature. Individual cases are listed in the bookmark...

  19. Look At (Search) Large Files

    Energy Science and Technology Software Center (OSTI)

    1992-07-13

    Scanning large files for information can be time consuming and expensive when using edit utilities on large mainframe computers. The reason is that editors must usually load the file into a buffer.

  20. MPI File Tree Walk

    Energy Science and Technology Software Center (OSTI)

    2007-04-30

    MPI-FTW is a scalable MPI based software application that navigates a directory tree by dynamically allocating processes to navigate sub-directories found. Upon completion, MPI-FTW provides statistics on the number of directories found, files found, and time to complete. Inaddition, commands can be executed at each directory level.

  1. MEMORANDUfl J: FILE DATE

    Office of Legacy Management (LM)

    J: FILE DATE r so ---w------m FROM: 9. 34oyc -w---v----- SUBJECT: D3 Bo;s CL&;C J mL-;+J; - Rcc cap 049 'A :j: &336;s L-.fh w-f L-1 ALE"nirTE ---...

  2. Hopper File Storage and I/O

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

    File Storage and IO File Storage and IO Disk Quota Change Request Form Hopper File Systems Hopper has 5 user file systems which provide different degrees of storage, performance...

  3. File:Mmpa.pdf | Open Energy Information

    Open Energy Info (EERE)

    Mmpa.pdf Jump to: navigation, search File File history File usage File:Mmpa.pdf Size of this preview: 463 599 pixels. Other resolution: 464 600 pixels. Go to page 1 2 3 4 5 6...

  4. File:Keystone.pdf | Open Energy Information

    Open Energy Info (EERE)

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

  5. File:Handbook.pdf | Open Energy Information

    Open Energy Info (EERE)

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

  6. File:Install.pdf | Open Energy Information

    Open Energy Info (EERE)

    Install.pdf Jump to: navigation, search File File history File usage File:Install.pdf Size of this preview: 463 599 pixels. Other resolution: 464 600 pixels. Full resolution...

  7. File:Hydrofracking.pdf | Open Energy Information

    Open Energy Info (EERE)

    Hydrofracking.pdf Jump to: navigation, search File File history File usage File:Hydrofracking.pdf Size of this preview: 463 599 pixels. Other resolution: 464 600 pixels. Go...

  8. File:Consultants.pdf | Open Energy Information

    Open Energy Info (EERE)

    Consultants.pdf Jump to: navigation, search File File history File usage File:Consultants.pdf Size of this preview: 463 599 pixels. Other resolution: 464 600 pixels. Go to...

  9. File:Installnot.pdf | Open Energy Information

    Open Energy Info (EERE)

    Installnot.pdf Jump to: navigation, search File File history File usage File:Installnot.pdf Size of this preview: 463 599 pixels. Other resolution: 464 600 pixels. Full...

  10. File:RSC.pdf | Open Energy Information

    Open Energy Info (EERE)

    RSC.pdf Jump to: navigation, search File File history File usage File:RSC.pdf Size of this preview: 463 599 pixels. Other resolution: 464 600 pixels. Go to page 1 2 3 4 5 6 7...

  11. Category:Map Files | Open Energy Information

    Open Energy Info (EERE)

    has the following 4 subcategories, out of 4 total. M Map Image Files Map PDF Files N NREL Map Files 1 pages S SWERA Map Files Media in category...

  12. File:Primer.pdf | Open Energy Information

    Open Energy Info (EERE)

    Primer.pdf Jump to: navigation, search File File history File usage File:Primer.pdf Size of this preview: 463 599 pixels. Other resolution: 464 600 pixels. Go to page 1 2 3 4...

  13. File:600.pdf | Open Energy Information

    Open Energy Info (EERE)

    600.pdf Jump to: navigation, search File File history File usage File:600.pdf Size of this preview: 463 599 pixels. Other resolution: 464 600 pixels. Go to page 1 2 3 4 5 6 7...

  14. File:SGI.pdf | Open Energy Information

    Open Energy Info (EERE)

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

  15. File:038392007).pdf | Open Energy Information

    Open Energy Info (EERE)

    8392007).pdf Jump to: navigation, search File File history File usage File:038392007).pdf Size of this preview: 463 599 pixels. Other resolution: 463 600 pixels. Go to page 1...

  16. File Storage and I/O

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

    File Storage and IO File Storage and IO Disk Quota Change Request Form Cori File Systems The Cori system has 3 different user-accessible file systems; they provide different...

  17. File Storage and I/O

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

    File Storage and IO File Storage and IO Disk Quota Change Request Form Hopper File Systems Hopper has 5 user file systems which provide different degrees of storage, performance...

  18. File:Methane.pdf | Open Energy Information

    Open Energy Info (EERE)

    Methane.pdf Jump to: navigation, search File File history File usage File:Methane.pdf Size of this preview: 448 600 pixels. Go to page 1 2 3 4 5 Go next page next page ...

  19. Original Signature On File

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

    Signature On File Department of Energy Carl sbad Field Office P. O. Box 3090 Carlsbad , New Mexico 8822 1 June 10, 2009 Mr. Steve Zappe, Project Leader Hazardous Waste Bureau New Mexico Environment Department 2905 Rodeo Park Drive East, Building 1 Santa Fe, New Mexico 87505-6303 Subject: Transmittal of CBFO Final Audit Report A-09-12 , Los Alamos National Laboratory Central Characterization Project TRU Waste Characterization and Certification Dear Mr. Zappe: Enclosed is the Carlsbad Field Office

  20. MEMORANDUM TO: FILE

    Office of Legacy Management (LM)

    3 MEMORANDUM TO: FILE FROM: D, h&Z *_ --------------__ SITE NA,,E: -------- CITY: -%+&6!? -------------------------- STATE: CT cr: 13 ------ WNERL_S, Past: -------_____-----_-_____ current: -----------------------~-- Owner contacted q yes q no; if yes, date contacted / TYPE OF OPERATION ----------------- J& Research & Development i \ 0 Production scale testing 0 Pilot Scale 0 Bench Scale Process i Theoretical Studies Sample & Analysis m Production e9 Facility Type p

  1. Original Signature on File

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

    Original Signature on File Page8 of 8 M. EMERGENCY PROCEDURES 1. The owner/operator must maintain an adequately trained onsite RCRA emergency coordinator to direct emergency procedures which could resultfrom fires, explosions or releases of PCB containing waste at the Facility. The owner/operator must submitthe name and qualifications of the emergency coordinator within sixty (60) daysof the effective dateof this approval. 2. The owner/operator must maintain in good working orderany equipment

  2. Inverse Energy Transfer

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

    Inverse Energy Transfer by Near-Resonant Interactions with a Damped-Wave Spectrum P.W. Terry Center for Magnetic Self Organization in Laboratory and Astrophysical Plasmas and Department of Physics, University of Wisconsin-Madison, Madison, Wisconsin 53706 USA (Received 12 January 2004; published 1 December 2004) The interaction of long-wavelength anisotropic drift waves with the plasma turbulence of electron density advection is shown to produce the inverse energy transfer that condenses onto

  3. Direct probe of Mott-Hubbard to charge-transfer insulator transition and electronic structure evolution in transition-metal systems

    SciTech Connect (OSTI)

    Olalde-Velasco, P; Jimenez-Mier, J; Denlinger, JD; Hussain, Z; Yang, WL

    2011-07-11

    We report the most direct experimental verification of Mott-Hubbard and charge-transfer insulators through x-ray emission spectroscopy in transition-metal (TM) fluorides. The p-d hybridization features in the spectra allow a straightforward energy alignment of the anion-2p and metal-3d valence states, which visually shows the difference between the two types of insulators. Furthermore, in parallel with the theoretical Zaanen-Sawatzky-Allen diagram, a complete experimental systematics of the 3d Coulomb interaction and the 2p-3d charge-transfer energy is reported and could serve as a universal experimental trend for other TM systems including oxides.

  4. File:01UTALandUsePlanning.pdf | Open Energy Information

    Open Energy Info (EERE)

    Datasets Community Login | Sign Up Search File Edit History File:01UTALandUsePlanning.pdf Jump to: navigation, search File File history File usage Metadata File:01UTALandUsePlan...

  5. File:01CAALandUsePlanning.pdf | Open Energy Information

    Open Energy Info (EERE)

    File Edit History File:01CAALandUsePlanning.pdf Jump to: navigation, search File File history File usage Metadata File:01CAALandUsePlanning.pdf Size of this preview: 463 599...

  6. File:01IDALandUseConsiderations.pdf | Open Energy Information

    Open Energy Info (EERE)

    File Edit History File:01IDALandUseConsiderations.pdf Jump to: navigation, search File File history File usage Metadata File:01IDALandUseConsiderations.pdf Size of this preview:...

  7. File:08COCStateTransmissionProcess.pdf | Open Energy Information

    Open Energy Info (EERE)

    Community Login | Sign Up Search File Edit History File:08COCStateTransmissionProcess.pdf Jump to: navigation, search File File history File usage Metadata File:08COCStateTransm...

  8. File:01MTALandUseConsiderations.pdf | Open Energy Information

    Open Energy Info (EERE)

    File Edit History File:01MTALandUseConsiderations.pdf Jump to: navigation, search File File history File usage Metadata File:01MTALandUseConsiderations.pdf Size of this preview:...

  9. File:03COCEncroachmentOverview.pdf | Open Energy Information

    Open Energy Info (EERE)

    File Edit History File:03COCEncroachmentOverview.pdf Jump to: navigation, search File File history File usage Metadata File:03COCEncroachmentOverview.pdf Size of this preview: 463...

  10. File:0 - Overall Flow (Solar).pdf | Open Energy Information

    Open Energy Info (EERE)

    File Edit History File:0 - Overall Flow (Solar).pdf Jump to: navigation, search File File history File usage Metadata File:0 - Overall Flow (Solar).pdf Size of this preview: 463 ...

  11. DOE - Fossil Energy: Introduction Page to E-Filing System

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

    E-Filing Natural Gas Import & Export Regulation - E-Filing DOE's Natural Gas E-Filing System More Info E-Filing Instructions Go directly to e-Filing Form View Sample e-File...

  12. File:WSR flowchart-introduction.pdf | Open Energy Information

    Open Energy Info (EERE)

    Apps Datasets Community Login | Sign Up Search File Edit History File:WSR flowchart-introduction.pdf Jump to: navigation, search File File history File usage File:WSR...

  13. Transferring Data from Batch Jobs

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

    Transferring Data from Batch Jobs Transferring Data from Batch Jobs Examples Once you are set up for automatic authentication (see HPSS Passwords) you can access HPSS within batch scripts. You can add the following lines at the end of your batch script. HSI will accept one-line commands on the HSI command line, e.g., hsi put filename HSI, ftp and pftp read from the standard input (stdin) and a list of commands can be placed in a text file (script) and redirected into the given utility, e.g., htp

  14. Interoffice Memorandum TO File Subject Granite City PRAR Data

    Office of Legacy Management (LM)

    : .' . .Y-" ._ ; / Bechfel / / Interoffice Memorandum TO File Subject Granite City PRAR Data Copies to M. Kaye B. Stanley J. Wood The fo$lowing data packages contain the post-remedial action sampling data, waste management data, and health and safety data that were reported in the Granite City PRAR. File No. Date Frolll Of At I UOLJU 7330 September 9, 1993 S. B. Hill FUSRAP E&T .' Oak Ridge Ext. 6-5211 D-15056 6-23-93 Direct and transferable contamination survey of betatron room with

  15. MEMORANDUM TO: FILE

    Office of Legacy Management (LM)

    ' a 7 > 3gI, q OH.I-r7.-I (jt' , ""7 MEMORANDUM TO: FILE FROM: ' 'Y OIL&i cz ,,,',, -------we- SUBJECT: SITE NAME: _____ CITY:-AQY&- --------------e----e-- OWNER(S) Owner contacted n yes =urr="t: ----- -Llz2-:---,-- -----___ &,&/4$- '1 :) ' if yes, data contacted ------------- TYPE OF OPERATION ----------------- a Research t Development lti- Facility Type 0 Production scale testing a Manufacturing 5 University 0 Research Organization 0 Government Sponsored

  16. MEMORANDUM TO: FILE FROM:

    Office of Legacy Management (LM)

    p' : , .; ' _ ' < 3.518 MEMORANDUM TO: FILE FROM: -Ye L&a --------e---e--- DATE 6j8/8 7 v---s -- ---------- SUBJECT: ;&l a+-b IA T~cornqm Q afib4 SITE NAME: CITY: & &&at leg co Current: ------------------------ Owner contacted 0 yes p no; if yem, date contacted --w---w------ TYPE OF OPERATION The T$SYI L-- Tj flmf ----------------- FResearch & Development a Facility 0 Production scale testing 0 Pilot Scale p Manufacturing 0 Bench Scale Process [3 University 0

  17. DOE FILE NO.

    Office of Legacy Management (LM)

    DOE FILE NO. _ ffi~15970 ADMIN RCD _ COMM REF _ pRwm BttO" SVR.l!s.j tJF PLE7l:JJER Rf) TECHNICAL SERVICES DIVISION (TSD) BACKFIT (Documents dated prior to 1 November 1988) FUSRAP COMMUNICATIONS DISTRIBUTION DOEiORO TECHNICAL SERVICES DIVISION (CE*53) BECHTEL NATIONAL INC. - JOB 14501 RESPONSE TRACKING INFORMATION PRIMARY, I lOWED BY: (ORG) I (ORG) TARGET DATE I I CLOSING CCN COMPL DATE ( ( CLOSING REF I I lOWED BY: (ORG) I I I I ( (ORG) TARGET DATE I CLOSING CCN COMPL DATE CLOSING REF

  18. 1999 CBECS Public Use Files

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

    only. Geographic identifiers and National Oceanic and Atmospheric Administration Weather Division identifiers are not included on any data files delivered to EIA. Geographic...

  19. File:08MTATransmission (3).pdf | Open Energy Information

    Open Energy Info (EERE)

    08MTATransmission (3).pdf Jump to: navigation, search File File history File usage Metadata File:08MTATransmission (3).pdf Size of this preview: 463 599 pixels. Other...

  20. File:03NVCEncroachment (1).pdf | Open Energy Information

    Open Energy Info (EERE)

    NVCEncroachment (1).pdf Jump to: navigation, search File File history File usage Metadata File:03NVCEncroachment (1).pdf Size of this preview: 463 599 pixels. Other resolution:...

  1. File:07FDCPURPAQualifyingFacilityCertificationProcess.pdf | Open...

    Open Energy Info (EERE)

    FDCPURPAQualifyingFacilityCertificationProcess.pdf Jump to: navigation, search File File history File usage Metadata File:07FDCPURPAQualifyingFacilityCertificationProcess.pdf Size...

  2. File:07TXBRECGeneratorCertification.pdf | Open Energy Information

    Open Energy Info (EERE)

    7TXBRECGeneratorCertification.pdf Jump to: navigation, search File File history File usage Metadata File:07TXBRECGeneratorCertification.pdf Size of this preview: 463 599 pixels....

  3. File:04AKBGeophysicalExplorationPermit.pdf | Open Energy Information

    Open Energy Info (EERE)

    AKBGeophysicalExplorationPermit.pdf Jump to: navigation, search File File history File usage Metadata File:04AKBGeophysicalExplorationPermit.pdf Size of this preview: 463 599...

  4. File:07FDBPlantCommissioning.pdf | Open Energy Information

    Open Energy Info (EERE)

    FDBPlantCommissioning.pdf Jump to: navigation, search File File history File usage Metadata File:07FDBPlantCommissioning.pdf Size of this preview: 463 599 pixels. Other...

  5. File:07HIAGeothermalAndCableSystemDevelopmentPermitting.pdf ...

    Open Energy Info (EERE)

    HIAGeothermalAndCableSystemDevelopmentPermitting.pdf Jump to: navigation, search File File history File usage Metadata File:07HIAGeothermalAndCableSystemDevelopmentPermitting.pdf...

  6. File:ApplicationtoAppropriate.pdf | Open Energy Information

    Open Energy Info (EERE)

    ApplicationtoAppropriate.pdf Jump to: navigation, search File File history File usage File:ApplicationtoAppropriate.pdf Size of this preview: 463 599 pixels. Other resolution:...

  7. File:08CABCaliforniaTransmissionCPUCProcess.pdf | Open Energy...

    Open Energy Info (EERE)

    8CABCaliforniaTransmissionCPUCProcess.pdf Jump to: navigation, search File File history File usage File:08CABCaliforniaTransmissionCPUCProcess.pdf Size of this preview: 463 599...

  8. File:AlaskaTitleVApplicationSubmittalInstructions.pdf | Open...

    Open Energy Info (EERE)

    AlaskaTitleVApplicationSubmittalInstructions.pdf Jump to: navigation, search File File history File usage File:AlaskaTitleVApplicationSubmittalInstructions.pdf Size of this...

  9. File:03ORENoncompetitiveGeothermalLease.pdf | Open Energy Information

    Open Energy Info (EERE)

    ORENoncompetitiveGeothermalLease.pdf Jump to: navigation, search File File history File usage Metadata File:03ORENoncompetitiveGeothermalLease.pdf Size of this preview: 463 599...

  10. File:07CAAPlantCommissioningProcessApplicationForCertification...

    Open Energy Info (EERE)

    7CAAPlantCommissioningProcessApplicationForCertification.pdf Jump to: navigation, search File File history File usage Metadata File:07CAAPlantCommissioningProcessApplicationForCert...

  11. File:08IDAStateTransmission.pdf | Open Energy Information

    Open Energy Info (EERE)

    IDAStateTransmission.pdf Jump to: navigation, search File File history File usage Metadata File:08IDAStateTransmission.pdf Size of this preview: 463 599 pixels. Other...

  12. File:03AKCEncroachmentOverview.pdf | Open Energy Information

    Open Energy Info (EERE)

    AKCEncroachmentOverview.pdf Jump to: navigation, search File File history File usage Metadata File:03AKCEncroachmentOverview.pdf Size of this preview: 463 599 pixels. Other...

  13. File:06ORATransportationPermit.pdf | Open Energy Information

    Open Energy Info (EERE)

    ORATransportationPermit.pdf Jump to: navigation, search File File history File usage Metadata File:06ORATransportationPermit.pdf Size of this preview: 463 599 pixels. Other...

  14. File:06NVATransportationPermit.pdf | Open Energy Information

    Open Energy Info (EERE)

    NVATransportationPermit.pdf Jump to: navigation, search File File history File usage Metadata File:06NVATransportationPermit.pdf Size of this preview: 463 599 pixels. Other...

  15. File:08CAACaliforniaTransmission.pdf | Open Energy Information

    Open Energy Info (EERE)

    CAACaliforniaTransmission.pdf Jump to: navigation, search File File history File usage Metadata File:08CAACaliforniaTransmission.pdf Size of this preview: 463 599 pixels. Other...

  16. File:06AKATransportationOversizeOverweight.pdf | Open Energy...

    Open Energy Info (EERE)

    6AKATransportationOversizeOverweight.pdf Jump to: navigation, search File File history File usage Metadata File:06AKATransportationOversizeOverweight.pdf Size of this preview: 463...

  17. File:07CACCaliforniaEnergyFacilityCPUCProcess.pdf | Open Energy...

    Open Energy Info (EERE)

    CACCaliforniaEnergyFacilityCPUCProcess.pdf Jump to: navigation, search File File history File usage Metadata File:07CACCaliforniaEnergyFacilityCPUCProcess.pdf Size of this preview:...

  18. File:03CACEncroachmentPermit.pdf | Open Energy Information

    Open Energy Info (EERE)

    CACEncroachmentPermit.pdf Jump to: navigation, search File File history File usage Metadata File:03CACEncroachmentPermit.pdf Size of this preview: 463 599 pixels. Other...

  19. File:06FDAEPAConstructionGeneralPermitConstructionStormwater...

    Open Energy Info (EERE)

    06FDAEPAConstructionGeneralPermitConstructionStormwater.pdf Jump to: navigation, search File File history File usage Metadata File:06FDAEPAConstructionGeneralPermitConstructionStor...

  20. File:07ORDExpeditedPlantCommissioningProcess.pdf | Open Energy...

    Open Energy Info (EERE)

    ORDExpeditedPlantCommissioningProcess.pdf Jump to: navigation, search File File history File usage Metadata File:07ORDExpeditedPlantCommissioningProcess.pdf Size of this preview:...

  1. File:03IDCEncroachmentPermit.pdf | Open Energy Information

    Open Energy Info (EERE)

    IDCEncroachmentPermit.pdf Jump to: navigation, search File File history File usage Metadata File:03IDCEncroachmentPermit.pdf Size of this preview: 463 599 pixels. Other...

  2. File:(PECC) Special Program on Climate Change SUMMARY (english...

    Open Energy Info (EERE)

    (PECC) Special Program on Climate Change SUMMARY (english).pdf Jump to: navigation, search File File history File usage File:(PECC) Special Program on Climate Change SUMMARY...

  3. File:0 - Overall Flow - Transmission.pdf | Open Energy Information

    Open Energy Info (EERE)

    - Overall Flow - Transmission.pdf Jump to: navigation, search File File history File usage Metadata File:0 - Overall Flow - Transmission.pdf Size of this preview: 463 599...

  4. File:CDPHE Industrial Individual Wastewater Discharge Permit...

    Open Energy Info (EERE)

    CDPHE Industrial Individual Wastewater Discharge Permit Application.pdf Jump to: navigation, search File File history File usage Metadata File:CDPHE Industrial Individual...

  5. File:Federal Hydropower - Southwestern Power Administration.pdf...

    Open Energy Info (EERE)

    Federal Hydropower - Southwestern Power Administration.pdf Jump to: navigation, search File File history File usage Metadata File:Federal Hydropower - Southwestern Power...

  6. File:Federal Hydropower - Western Area Power Administration.pdf...

    Open Energy Info (EERE)

    Hydropower - Western Area Power Administration.pdf Jump to: navigation, search File File history File usage Metadata File:Federal Hydropower - Western Area Power Administration.pdf...

  7. File:Texas Construction General Permit (TXR150000).pdf | Open...

    Open Energy Info (EERE)

    Texas Construction General Permit (TXR150000).pdf Jump to: navigation, search File File history File usage Metadata File:Texas Construction General Permit (TXR150000).pdf Size of...

  8. File:06COBConstructionStormWaterPermit.pdf | Open Energy Information

    Open Energy Info (EERE)

    Login | Sign Up Search File Edit History File:06COBConstructionStormWaterPermit.pdf Jump to: navigation, search File File history File usage Metadata File:06COBConstructio...

  9. Resolved: Hopper /scratch file system slow

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

    Hopper /scratch file system slow Resolved: Hopper /scratch file system slow August 6, 2014 Symptom: Users have reported scripts hung when involving file copies from/to the /scratch file system, or jobs running in /scratch are slower than before since late last week. Workaround: If it is convenient, move your workflow to /scratch2 temporarily, avoid any reference to /scratch. It includes setting your input files directory, your batch job submission directory, your executable file location, and

  10. Transferring Data

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

    Data Transferring Data Advice and Overview NERSC provides many facilities for storing data and performing analysis. However, transferring data - whether over the wide area network or with NERSC - can be expensive and time consuming. This page explains the mechanisms NERSC provides to move your data from one place to another. A good strategy, once your data is resident at NERSC, is to perform your analysis in situ, rather than transferring the data elsewhere for analysis. The NERSC consultant can

  11. FileSystems.pdf

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

    Joint Facilities User Forum on Data- Intensive Computing! June 18, 2014 NERSC File Systems and How to Use Them The compute and storage systems 2014 Produc'on C lusters Carver, P DSF, J GI,KBASE,HEP 1 4x Q DR /global/ scratch 3.6 PB 5 x S FA12KE /project 5 PB DDN9900 & NexSAN /home 250 TB NetApp 5 460 65 PB stored, 240 PB capacity, 4 0 y ears o f community d ata HPSS 16 x Q DR I B 2.2 PB Local Scratch 70 GB/s 6.4 PB Local Scratch 140 GB/s 16 x F DR I B Ethernet & I B F abric Science F

  12. Instructions to CBECS 1995 Microdata Files

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

    5 Files WHAT IS CBECS? Please Note: These microdata files, which contain building characteristics, energy consumption and expenditures, and energy end-use estimates replace the...

  13. PDF File Information (pbl/help)

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

    Site Help > Help Power Services Site Map Searching for Text Other Navigation Aids PDF File Info Firstgov PDF File Information Many of the documents available on the Power...

  14. Resolved: Hopper /scratch file system slow

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

    your input files directory, your batch job submission directory, your executable file location, and the TMPDIR setting (which is set to SCRATCH by default). Status: This...

  15. Help:Managing files | Open Energy Information

    Open Energy Info (EERE)

    file." Click "Browse" next to the "Source filename:" to locate the file on your computer (the name of the "browse" button depends on your web browser). Change the...

  16. Amended Environmental Impact Statement Filing System Guidance...

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

    Amended Environmental Impact Statement Filing System Guidance (EPA, 2012) Amended Environmental Impact Statement Filing System Guidance (EPA, 2012) Amended Environmental Impact ...

  17. Storing files in a parallel computing system using list-based index to identify replica files

    DOE Patents [OSTI]

    Faibish, Sorin; Bent, John M.; Tzelnic, Percy; Zhang, Zhenhua; Grider, Gary

    2015-07-21

    Improved techniques are provided for storing files in a parallel computing system using a list-based index to identify file replicas. A file and at least one replica of the file are stored in one or more storage nodes of the parallel computing system. An index for the file comprises at least one list comprising a pointer to a storage location of the file and a storage location of the at least one replica of the file. The file comprises one or more of a complete file and one or more sub-files. The index may also comprise a checksum value for one or more of the file and the replica(s) of the file. The checksum value can be evaluated to validate the file and/or the file replica(s). A query can be processed using the list.

  18. Unix File Groups at NERSC

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

    Groups at NERSC Unix File Groups at NERSC Unix file groups are an important component of effective data management, providing a means to control access to shared data on disk and tape. At NERSC, groups are also used to control access to certain computational resources (e.g., batch queues, testbed systems, licensed software). Overview of Unix Groups Every user on a Unix system is a member of one or more Unix groups, including their primary or default group. Every file (or directory) on the system

  19. EnergyPlus File Generator

    Broader source: Energy.gov [DOE]

    EERE EnergyPlus Factsheet - This fact sheet discusses the EnergyPlus Example File Generator, a free, Web-based service which makes it easier to use EnergyPlus, DOE's building energy analysis and thermal load simulation program. The web-based form allows a user to enter general information about a building and the application then automatically creates a complete EnergyPlus input file, runs an annual simulation, and emails the EnergyPlus input, output, DXF and other files along with an annual summary of the energy results.

  20. File:NREL-bhutan-wind.pdf | Open Energy Information

    Open Energy Info (EERE)

    File Edit with form History File:NREL-bhutan-wind.pdf Jump to: navigation, search File File history File usage Bhutan - 50m Wind Power Size of this preview: 776 600 pixels. Full...

  1. File:NREL-BioMap.pdf | Open Energy Information

    Open Energy Info (EERE)

    File Edit with form History File:NREL-BioMap.pdf Jump to: navigation, search File File history File usage Biomass Power Potential (GW) on Federal Lands by County Size of this...

  2. File:NREL-brazil-glo.pdf | Open Energy Information

    Open Energy Info (EERE)

    File Edit with form History File:NREL-brazil-glo.pdf Jump to: navigation, search File File history File usage Brazil - Annual Global Horizontal Solar Radiation Size of this...

  3. A File System Utilization Metric

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

    in order to ensure resources are adequately provisioned. Although it is relatively straightforward to- day to measure the total amount of IO to and from a file system, and the...

  4. Guidelines for Filing Monthly Reports

    Office of Energy Efficiency and Renewable Energy (EERE)

    Importers and exporters of natural gas must file monthly reports on their activities, as required in DOE/FE Order No. 2464, dated February 1, 2008.  Reports are required to contain certain...

  5. Reading File Bonneville Power Administration

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

    Reading File Bonneville Power Administration P.O. Box 3621 Portland, Oregon 97208-3621 POWER SERVICES In reply refer to: PG-5 Ms. Renata Kurschner Director, Generation Resource...

  6. MGI Electronics LLC | Open Energy Information

    Open Energy Info (EERE)

    MGI Electronics LLC Jump to: navigation, search Name: MGI Electronics LLC Place: Temple, Arizona Zip: 85282 Product: US-based manufacturer of wafer transfer and PV cell handling...

  7. Data Transfer Study HPSS Archiving

    SciTech Connect (OSTI)

    Wynne, James; Parete-Koon, Suzanne T; Mitchell, Quinn; White, Stanley R

    2015-01-01

    The movement of the large amounts of data produced by codes run in a High Performance Computing (HPC) environment can be a bottleneck for project workflows. To balance filesystem capacity and performance requirements, HPC centers enforce data management policies to purge old files to make room for new computation and analysis results. Users at Oak Ridge Leadership Computing Facility (OLCF) and many other HPC user facilities must archive data to avoid data loss during purges, therefore the time associated with data movement for archiving is something that all users must consider. This study observed the difference in transfer speed from the originating location on the Lustre filesystem to the more permanent High Performance Storage System (HPSS). The tests were done with a number of different transfer methods for files that spanned a variety of sizes and compositions that reflect OLCF user data. This data will be used to help users of Titan and other Cray supercomputers plan their workflow and data transfers so that they are most efficient for their project. We will also discuss best practice for maintaining data at shared user facilities.

  8. Pressure dependence on the kinetics of photoinduced intramolecular charge separation in 9,9 prime -bianthryl monitored by picosecond transient absorption: Comparison with electron transfer in photosynthesis

    SciTech Connect (OSTI)

    Lueck, H.; Windsor, M.W. ); Rettig, W. )

    1990-05-31

    Transient absorption spectra of 9,9{prime}-bianthryl (BA) in the picosecond time range have been recorded in nonpolar cyclohexane (CH), in polar acetonitrile (ACN), and in the highly viscous solvent glycerol triacetate (GTA). High pressure (0.1-300 MPa) is employed to vary the solvent properties of GTA over an unusually wide range. To our knowledge, this is the first time that picosecond absorption spectra at high pressures have been reported. Transient spectra (25-ps resolution) in GTA can be resolved into an anthracene-like band corresponding to the locally excited state (LE) and a longer wavelength band corresponding to the twisted intramolecular charge transfer state (TICT). Comparisons are made between ET in BA/GTA and ET in the photosynthetic bacterial reaction center. They suggest that the microscopic structure of the protein in which the chromophores are embedded not only induces the asymmetric charge separation but also provides a polar solvent environment optimized for fast activationless ET and preformed to stabilize the charge-separated chromophores.

  9. Technology Transfer

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

    Technology Transfer Since 1974, the Federal Laboratory Consortium (FLC) Award for Excellence in Technology Transfer has recognized scientists and engineers at federal government and research centers for their "uncommon creativity and initiative in conveying innovations from their facilities to industry and local government." Scientists and engineers from more than 650 federal government laboratories and research centers compete for the 30 awards presented each year. Because the number

  10. File:SWERA-247.pdf | Open Energy Information

    Open Energy Info (EERE)

    navigation, search File File history File usage Solar: monthly global horizontal (GHI) GIS data at 40km resolution for Bangladesh from NREL Size of this preview: 776 600...

  11. File:Cubametst 59.pdf | Open Energy Information

    Open Energy Info (EERE)

    59.pdf Jump to: navigation, search File File history File usage Meteorology: map of Cuba selected meteorological stations and elevation from NREL Size of this preview: 776 ...

  12. PIA - Savannah River Operations Office File and Print Services...

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

    File and Print Services PIA - Savannah River Operations Office File and Print Services PIA - Savannah River Operations Office File and Print Services PDF icon PIA - Savannah River ...

  13. File:PoliticsofFracking.pdf | Open Energy Information

    Open Energy Info (EERE)

    instructions for more information) File usage The following page links to this file: Hydraulic Fracturing Retrieved from "http:en.openei.orgwindex.php?titleFile:Politicso...

  14. File:PerspectiveHealthNatGas.pdf | Open Energy Information

    Open Energy Info (EERE)

    instructions for more information) File usage The following page links to this file: Hydraulic Fracturing Retrieved from "http:en.openei.orgwindex.php?titleFile:Perspecti...

  15. File:FrackingFacts.pdf | Open Energy Information

    Open Energy Info (EERE)

    instructions for more information) File usage The following page links to this file: Hydraulic Fracturing Retrieved from "http:en.openei.orgwindex.php?titleFile:FrackingF...

  16. 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...

  17. File:Fut oilp 03.pdf | Open Energy Information

    Open Energy Info (EERE)

    Jump to: navigation, search File File history File usage Future Oil Resources and Country Oil Consumption (September 2005) Size of this preview: 800 585 pixels. Full resolution...

  18. File:INL-geothermal-west-usa.pdf | Open Energy Information

    Open Energy Info (EERE)

    INL-geothermal-west-usa.pdf Jump to: navigation, search File File history File usage Western United States Geothermal Resources Size of this preview: 653 599 pixels. Other...

  19. File:Breakout Session Groups.pdf | Open Energy Information

    Open Energy Info (EERE)

    information) File usage The following page links to this file: Energy Data InitiativeResources Retrieved from "http:en.openei.orgwindex.php?titleFile:BreakoutSessionGro...

  20. File:EIA-conventional-gas.pdf | Open Energy Information

    Open Energy Info (EERE)

    conventional-gas.pdf Jump to: navigation, search File File history File usage Natural Gas Production in Conventional Fields, Lower 48 States Size of this preview: 776 600...

  1. File:BrazilTMYst 238.pdf | Open Energy Information

    Open Energy Info (EERE)

    238.pdf Jump to: navigation, search File File history File usage Meteorology: map of Brazil selected meteorological stations and elevation from NREL Size of this preview: 776 ...

  2. File:NREL-brazil-dir.pdf | Open Energy Information

    Open Energy Info (EERE)

    brazil-dir.pdf Jump to: navigation, search File File history File usage Brazil - Annual Direct Normal Solar Radiation Size of this preview: 776 600 pixels. Full resolution...

  3. Bagless Transfer System Welder Analysis Software

    Energy Science and Technology Software Center (OSTI)

    2003-10-01

    The Bagless Transfer System Welder Analysis Software (BTS WAS) was developed by SRTC for use with the Bagless Transfer System. During the welding process, critical weld parameters such as weld current and voltage, can give valuable informaitoin about the weld. In the past, weld data from the TIG welding process, such as the bagless transfer system in FB-Line, has been monitored using strip chart recorders. The data from the weld process, recorded on the stripmore » chart recorder traces, were reviewed by the supervisor using a procedure and criteria to analyze the weld. This hand checking can be tedious and time consuming. To improve this process, another software package developed by SRTC, the BTS DAS, digitizes the weld data and stores the weld data in a file. The BTS WAS automates the weld analysis process by analyzing the data obtained during the weld process against the same weld criteria that the supervisor currently users. Of course with the automated analysis system the supervisor is still provided the same information in the same chart display format so he can also manually review the data as desired. The BTS WAS reads in a data file that was prevously collected using the BTS DAS software. The software will read the file and parse the data. The user is first prompted to enter the file name. The file is then opened and the operator name and Date/Time of Acquisition are read from the file and displayed on the screen. The binary weld data is then read from the file into an array until the end of the file is reached. The shunt and weld current, voltage, RPM, and position data are displayed on the screen in graphical formats on the front panel. The weld power and resistance are calculated and are also displayed in graphical format on the front panel. Individual tack analysis data is provided for each of the three tacks. The main weld and downslope data is also displayed.« less

  4. File System Licenses in SLURM

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

    File System Licenses in SLURM Introduction Users can now specify the filesystems required for their jobs by requesting "licenses" for them in their batch scripts. With this new SLURM license feature, a batch job will not start if the specified file system is unavailable due to maintenance or an outage, or if we've detected that it's having performance issues. This will protect your jobs from failures or decreased performance from known issues. We encourage everyone to use the SLURM

  5. Property:File/Author | Open Energy Information

    Open Energy Info (EERE)

    Author Jump to: navigation, search Property Name FileAuthor Property Type String Description Individual that created the original file. Note that this will often not be the same...

  6. Core File Settings | Argonne Leadership Computing Facility

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

    Settings About Core Files By default, a rank that aborts will dump core, and the control system will signal the other ranks to quit (without dumping core). Multiple core files...

  7. OHA Worker Appeal Cases Archive File

    Broader source: Energy.gov [DOE]

    This is a archive file of our Worker Appeal decisions, Please download this file to your local computer and use the build in adobe search feature. Individual cases are listed in the bookmark...

  8. Help:Uploading Files | Open Energy Information

    Open Energy Info (EERE)

    Uploading Files Jump to: navigation, search Click on the upload file link at the bottom of the page (NOTE: you must be logged in to have this option). Uploading tutorial.JPG Click...

  9. Index of /radsafe/files

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

    radsafe/files [ICO] Name Last modified Size Description [DIR] Parent Directory - [ ] directions for the radiation detector.doc 23-Jul-1999 00:13 38K [DIR] groundloop/ 13-May-2016 00:26 - [DIR] logs/ 13-May-2016 20:33 - [ ] test.eps 16-Nov-2010 08:28 25K

  10. Access Your Files | Argonne National Laboratory

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

    Your Files Access your files stored on Box, without the need for VPN. Box is Argonne's secure cloud-based file storage system that provides an easy way to organize, edit, share, and collaborate on files anywhere, on any device, without the need for VPN. Box provides document workflow tools, including task assignments and tracking. Box basic functionality can be enhanced with optional apps. It can be used on many operating systems and devices, including desktop and laptop computers, tablets, and

  11. File:Invitation-English (2).pdf | Open Energy Information

    Open Energy Info (EERE)

    Invitation-English (2).pdf Jump to: navigation, search File File history File usage File:Invitation-English (2).pdf Size of this preview: 321 598 pixels. Other resolution: 322...

  12. File:4003-3 (1).pdf | Open Energy Information

    Open Energy Info (EERE)

    4003-3 (1).pdf Jump to: navigation, search File File history File usage File:4003-3 (1).pdf Size of this preview: 463 599 pixels. Other resolution: 464 600 pixels. Full...

  13. File:3-200-71.pdf | Open Energy Information

    Open Energy Info (EERE)

    3-200-71.pdf Jump to: navigation, search File File history File usage File:3-200-71.pdf Size of this preview: 463 599 pixels. Other resolution: 464 600 pixels. Go to page 1 2...

  14. File:3-200-43.pdf | Open Energy Information

    Open Energy Info (EERE)

    3-200-43.pdf Jump to: navigation, search File File history File usage File:3-200-43.pdf Size of this preview: 463 599 pixels. Other resolution: 464 600 pixels. Go to page 1 2...

  15. File:09HICHawaiiEISProcess (1).pdf | Open Energy Information

    Open Energy Info (EERE)

    09HICHawaiiEISProcess (1).pdf Jump to: navigation, search File File history File usage File:09HICHawaiiEISProcess (1).pdf Size of this preview: 463 599 pixels. Other resolution:...

  16. File:04HIAExplorationPermit (1).pdf | Open Energy Information

    Open Energy Info (EERE)

    4HIAExplorationPermit (1).pdf Jump to: navigation, search File File history File usage Metadata File:04HIAExplorationPermit (1).pdf Size of this preview: 463 599 pixels. Other...

  17. File:03CODAccessPermit (1).pdf | Open Energy Information

    Open Energy Info (EERE)

    3CODAccessPermit (1).pdf Jump to: navigation, search File File history File usage Metadata File:03CODAccessPermit (1).pdf Size of this preview: 463 599 pixels. Other resolution:...

  18. File:05NVBSundryNotice (2).pdf | Open Energy Information

    Open Energy Info (EERE)

    5NVBSundryNotice (2).pdf Jump to: navigation, search File File history File usage Metadata File:05NVBSundryNotice (2).pdf Size of this preview: 463 599 pixels. Other resolution:...

  19. File:DEQ Circular 2.pdf | Open Energy Information

    Open Energy Info (EERE)

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

  20. File:(131112) Presentacion LAC LEDs.pdf | Open Energy Information

    Open Energy Info (EERE)

    (131112) Presentacion LAC LEDs.pdf Jump to: navigation, search File File history File usage File:(131112) Presentacion LAC LEDs.pdf Size of this preview: 800 600 pixels. Go to...

  1. File:DOD DOI MOU.pdf | Open Energy Information

    Open Energy Info (EERE)

    DOD DOI MOU.pdf Jump to: navigation, search File File history File usage File:DOD DOI MOU.pdf Size of this preview: 463 599 pixels. Other resolution: 464 600 pixels. Go to...

  2. File:0 - OverallFlow-1.pdf | Open Energy Information

    Open Energy Info (EERE)

    OverallFlow-1.pdf Jump to: navigation, search File File history File usage Metadata File:0 - OverallFlow-1.pdf Size of this preview: 463 599 pixels. Other resolution: 464 ...

  3. File:07HICCertificationOfPublicConvenienceAndNecessity.pdf |...

    Open Energy Info (EERE)

    7HICCertificationOfPublicConvenienceAndNecessity.pdf Jump to: navigation, search File File history File usage Metadata File:07HICCertificationOfPublicConvenienceAndNecessity.pdf...

  4. File:03IDDIndustrialLease.pdf | Open Energy Information

    Open Energy Info (EERE)

    03IDDIndustrialLease.pdf Jump to: navigation, search File File history File usage File:03IDDIndustrialLease.pdf Size of this preview: 463 599 pixels. Other resolution: 464 ...

  5. File:07NVCStatePUCProcess.pdf | Open Energy Information

    Open Energy Info (EERE)

    07NVCStatePUCProcess.pdf Jump to: navigation, search File File history File usage Metadata File:07NVCStatePUCProcess.pdf Size of this preview: 463 599 pixels. Other resolution:...

  6. File:OperatingPermitCheckList.pdf | Open Energy Information

    Open Energy Info (EERE)

    OperatingPermitCheckList.pdf Jump to: navigation, search File File history File usage File:OperatingPermitCheckList.pdf Size of this preview: 463 599 pixels. Other resolution:...

  7. File:04IDAStateExplorationProcess.pdf | Open Energy Information

    Open Energy Info (EERE)

    IDAStateExplorationProcess.pdf Jump to: navigation, search File File history File usage Metadata File:04IDAStateExplorationProcess.pdf Size of this preview: 463 599 pixels....

  8. File:01AKALandUseConsiderations.pdf | Open Energy Information

    Open Energy Info (EERE)

    1AKALandUseConsiderations.pdf Jump to: navigation, search File File history File usage Metadata File:01AKALandUseConsiderations.pdf Size of this preview: 463 599 pixels. Other...

  9. File:04UTAStateExplorationProcess.pdf | Open Energy Information

    Open Energy Info (EERE)

    04UTAStateExplorationProcess.pdf Jump to: navigation, search File File history File usage Metadata File:04UTAStateExplorationProcess.pdf Size of this preview: 463 599 pixels....

  10. File:09FDDBLMAppealsProcess.pdf | Open Energy Information

    Open Energy Info (EERE)

    9FDDBLMAppealsProcess.pdf Jump to: navigation, search File File history File usage Metadata File:09FDDBLMAppealsProcess.pdf Size of this preview: 463 599 pixels. Other...

  11. File:04TXAStateExplorationProcess.pdf | Open Energy Information

    Open Energy Info (EERE)

    4TXAStateExplorationProcess.pdf Jump to: navigation, search File File history File usage Metadata File:04TXAStateExplorationProcess.pdf Size of this preview: 463 599 pixels....

  12. File:CaveProtectionLaw.pdf | Open Energy Information

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  6. WEATHERIZATION ANNUAL FILE WORKSHEET | Department of Energy

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

    WEATHERIZATION ANNUAL FILE WORKSHEET WEATHERIZATION ANNUAL FILE WORKSHEET Form is designed to gather specific detail related to the expenditures of the Weatherization grant. PDF icon WEATHERIZATION ANNUAL FILE WORKSHEET More Documents & Publications DOE F 540.3 WPN 06-3: Revised Weatherization Assistance Program Application Instructions and Forms WPN 04-4: Revised Weatherization Assistance Program Application Package and Reporting Format

  7. Energy transfer dynamics in trimers and aggregates of light-harvesting...

    Office of Scientific and Technical Information (OSTI)

    Energy transfer dynamics in trimers and aggregates of light-harvesting complex II probed by 2D electronic spectroscopy Citation Details In-Document Search Title: Energy transfer ...

  8. TECHNOLOGY TRANSFER

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

    404-NOV. 1, 2000 TECHNOLOGY TRANSFER COMMERCIALIZATION ACT OF 2000 VerDate 11-MAY-2000 04:52 Nov 16, 2000 Jkt 089139 PO 00000 Frm 00001 Fmt 6579 Sfmt 6579 E:\PUBLAW\PUBL404.106 APPS27 PsN: PUBL404 114 STAT. 1742 PUBLIC LAW 106-404-NOV. 1, 2000 Public Law 106-404 106th Congress An Act To improve the ability of Federal agencies to license federally owned inventions. Be it enacted by the Senate and House of Representatives of the United States of America in Congress assembled, SECTION 1. SHORT

  9. "Covalent functionalization and electron-transfer properties...

    Office of Scientific and Technical Information (OSTI)

    impact both the amount of exposed edge-plane sites and the resulting electrochemical activity toward Ru(NHsub 3)sub 6sup 3+2+ and Fe(CN)sub 6sup 3-4- redox couples. ...

  10. ENERGY-TRANSFER SYSTEMS

    DOE Patents [OSTI]

    Thonemann, P.C.; Cowhig, W.T.; Davenport, P.A.

    1963-04-01

    This patent relates to the transfer of energy in a traveling electromagnetic wave to direct-current electrical energy in a gaseous medium. The traveling wave is generated by means of a radio-frequency oscillator connected across a capacitance-loaded helix wound around a sealed tube enclosing the gaseous medium. The traveling wave causes the electrons within the medium to drift towards one end of the tube. The direct current appearing across electrodes placed at each end of the tube is then used by some electrical means. (AEC)

  11. A Metadata-Rich File System

    SciTech Connect (OSTI)

    Ames, S; Gokhale, M B; Maltzahn, C

    2009-01-07

    Despite continual improvements in the performance and reliability of large scale file systems, the management of file system metadata has changed little in the past decade. The mismatch between the size and complexity of large scale data stores and their ability to organize and query their metadata has led to a de facto standard in which raw data is stored in traditional file systems, while related, application-specific metadata is stored in relational databases. This separation of data and metadata requires considerable effort to maintain consistency and can result in complex, slow, and inflexible system operation. To address these problems, we have developed the Quasar File System (QFS), a metadata-rich file system in which files, metadata, and file relationships are all first class objects. In contrast to hierarchical file systems and relational databases, QFS defines a graph data model composed of files and their relationships. QFS includes Quasar, an XPATH-extended query language for searching the file system. Results from our QFS prototype show the effectiveness of this approach. Compared to the defacto standard, the QFS prototype shows superior ingest performance and comparable query performance on user metadata-intensive operations and superior performance on normal file metadata operations.

  12. MEMORANDU TO: FILE FHOM: SUBJECT:

    Office of Legacy Management (LM)

    ' .- _. I _ ' 1.3 7 -3 , MEMORANDU TO: FILE FHOM: SUBJECT: Curre"t: Ll&k&&d ________ l- ; if yes, date contacted ___ 0 Production scale testing Cl Pilot Scale 0 Bench Scale Process 0 Theoretical Studies 0 Sample & Analysis 0 Production 0 Disposal /Storage TYPE OF CONTRACT --------------_- 0 Prime 13 Subcontract& 0 Purchase Order 0 Cl Facility Type 0 Manufacturing 0 University 0 Research Organization *i Government Sponsored Facility 0 Other --------------_-----_ Other

  13. Bulk Data Movement for Climate Dataset: Efficient Data Transfer Management with Dynamic Transfer Adjustment

    SciTech Connect (OSTI)

    Sim, Alexander; Balman, Mehmet; Williams, Dean N.; Shoshani, Arie; Natarajan, Vijaya

    2010-07-16

    Many scientific applications and experiments, such as high energy and nuclear physics, astrophysics, climate observation and modeling, combustion, nano-scale material sciences, and computational biology, generate extreme volumes of data with a large number of files. These data sources are distributed among national and international data repositories, and are shared by large numbers of geographically distributed scientists. A large portion of data is frequently accessed, and a large volume of data is moved from one place to another for analysis and storage. One challenging issue in such efforts is the limited network capacity for moving large datasets to explore and manage. The Bulk Data Mover (BDM), a data transfer management tool in the Earth System Grid (ESG) community, has been managing the massive dataset transfers efficiently with the pre-configured transfer properties in the environment where the network bandwidth is limited. Dynamic transfer adjustment was studied to enhance the BDM to handle significant end-to-end performance changes in the dynamic network environment as well as to control the data transfers for the desired transfer performance. We describe the results from the BDM transfer management for the climate datasets. We also describe the transfer estimation model and results from the dynamic transfer adjustment.

  14. File:07COCCertificateOfPublicConvenienceAndNecessity.pdf | Open...

    Open Energy Info (EERE)

    | Sign Up Search File Edit History File:07COCCertificateOfPublicConvenienceAndNecessity.pdf Jump to: navigation, search File File history File usage Metadata File:07COCCertificate...

  15. File:03COEUtilitySpecialUsePermit.pdf | Open Energy Information

    Open Energy Info (EERE)

    Community Login | Sign Up Search File Edit History File:03COEUtilitySpecialUsePermit.pdf Jump to: navigation, search File File history File usage Metadata File:03COEUtilitySpec...

  16. EERE-SBIR Technology Transfer Opportunity: H2 Safety Sensors...

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

    Sensors for H2 EERE-SBIR Technology Transfer Opportunity Develop low cost electronics packaging manufacturable at high volume, and integrate LANL sensor into a commercial package...

  17. Electrostatic transfer of epitaxial graphene to glass. (Conference) |

    Office of Scientific and Technical Information (OSTI)

    SciTech Connect Electrostatic transfer of epitaxial graphene to glass. Citation Details In-Document Search Title: Electrostatic transfer of epitaxial graphene to glass. We report on a scalable electrostatic process to transfer epitaxial graphene to arbitrary glass substrates, including Pyrex and Zerodur. This transfer process could enable wafer-level integration of graphene with structured and electronically-active substrates such as MEMS and CMOS. We will describe the electrostatic transfer

  18. 1987 RECS Public Use Microdata Files

    Gasoline and Diesel Fuel Update (EIA)

    87 Microdata 1987 RECS Public Use Microdata Files Data for: 1987 Released: September 2008 The 1987 Residential Energy Consumption Survey (RECS) was designed by the Energy Information Administration (EIA) to provide information on how households in the United States and District of Columbia use energy within the home. The RECS Public Use Files are comma separated value (.txt) files. Each record corresponds to a single responding household. The smallest level of geographic detail available is the

  19. 1990 RECS Public Use Microdata Files

    Gasoline and Diesel Fuel Update (EIA)

    90 Microdata 1990 RECS Public Use Microdata Files Data for: 1990 Released: September 2008 The 1990 Residential Energy Consumption Survey (RECS) was designed by the Energy Information Administration (EIA) to provide information on how households in the United States and District of Columbia use energy within the home. The RECS Public Use Files are comma separated value (.txt) files. Each record corresponds to a single responding household. The smallest level of geographic detail available is the

  20. File

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

    1,"Alabama","Alabama","Coke Plant","Railroad",88670 2014,1,"Alabama","Alabama","Coke Plant","Truck",134555 2014,1,"Alabama","Alabama","Electric Power Sector","Railroad",212909 2014,1,"Alabama","Alabama","Electric Power Sector","River",679939 2014,1,"Alabama","Alabama","Electric Power

  1. File

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

    1,"Alabama","Alabama","Electric Power Sector","Railroad",212909 2014,1,"Alabama","Alabama","Coke Plant","Railroad",88670 2014,1,"Alabama","Alabama","Industrial Plants Excluding Coke","Railroad",1675 2014,1,"Alabama","Alabama","Electric Power Sector","River",679939 2014,1,"Alabama","Alabama","Industrial Plants

  2. File

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

    2,4,"Alabama","Alabama","Coke Plant","Railroad",17349 2012,4,"Alabama","Alabama","Coke Plant","Truck",144411 2012,4,"Alabama","Alabama","Electric Power Sector","Railroad",802677 2012,4,"Alabama","Alabama","Electric Power Sector","River",384071 2012,4,"Alabama","Alabama","Electric Power

  3. File

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

    2,4,"Alabama","Alabama","Electric Power Sector","Railroad",802677 2012,4,"Alabama","Alabama","Coke Plant","Railroad",17349 2012,4,"Alabama","Alabama","Industrial Plants Excluding Coke","Railroad",22271 2012,4,"Alabama","Alabama","Electric Power Sector","River",384071 2012,4,"Alabama","Alabama","Electric Power

  4. File

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

    Electric Power Sector","Truck",12356 2013,1,"Alabama","Alabama","Coke Plant","Truck",87126 ... 2013,1,"Arizona","Arizona","Electric Power Sector","Railroad",1749204 ...

  5. File

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

    Electric Power Sector","Truck",12356 2013,1,"Alabama","Alabama","Industrial Plants ... 2013,1,"Alabama","Colorado","Electric Power Sector","Railroad",203781 ...

  6. File

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

    2014,2,"Alabama","Alabama","Industrial Plants Excluding Coke","River",6233 2014,2,"Alabama","Alabama","Industrial Plants Excluding Coke","Truck",328873 ...

  7. File

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

    2013,3,"Alabama","Alabama","Industrial Plants Excluding Coke","Railroad",19784 2013,3,"Alabama","Alabama","Industrial Plants Excluding Coke","River",3083 ...

  8. File

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

    Plants Excluding Coke","Railroad",26409 2013,2,"Alabama","Alabama","Electric Power Sector","River",511695 2013,2,"Alabama","Alabama","Industrial Plants Excluding ...

  9. File

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

    2014,4,"Alabama","Alabama","Industrial Plants Excluding Coke","River",8955 2014,4,"Alabama","Alabama","Industrial Plants Excluding Coke","Truck",283651 ...

  10. File

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

    Plants Excluding Coke","Railroad",19784 2013,3,"Alabama","Alabama","Electric Power Sector","River",306584 2013,3,"Alabama","Alabama","Industrial Plants Excluding ...

  11. File

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

    2013,2,"Alabama","Alabama","Industrial Plants Excluding Coke","Railroad",26409 2013,2,"Alabama","Alabama","Industrial Plants Excluding Coke","River",1588 ...

  12. File

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

    2013,1,"Alabama","Alabama","Industrial Plants Excluding Coke","Railroad",14493 ... 2013,1,"Alabama","Alabama","Industrial Plants Excluding Coke","Truck",267108 ...

  13. File

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

    2014,2,"Alabama","Alabama","Industrial Plants Excluding Coke","River",6233 ... 2014,2,"Alabama","Alabama","Industrial Plants Excluding Coke","Truck",328873 ...

  14. File

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

    Plants Excluding Coke","Railroad",26143 2014,3,"Alabama","Alabama","Electric Power Sector","River",765708 2014,3,"Alabama","Alabama","Industrial Plants Excluding ...

  15. File

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

    2014,3,"Alabama","Alabama","Industrial Plants Excluding Coke","Railroad",26143 2014,3,"Alabama","Alabama","Industrial Plants Excluding Coke","River",3118 ...

  16. File

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

    2013,1,"Alabama","Alabama","Industrial Plants Excluding Coke","Railroad",14493 2013,1,"Alabama","Alabama","Industrial Plants Excluding Coke","Truck",267108 ...

  17. File

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

    2014,4,"Alabama","Alabama","Industrial Plants Excluding Coke","River",8955 ... 2014,4,"Alabama","Alabama","Industrial Plants Excluding Coke","Truck",283651 ...

  18. The NERSC Global File System

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

    NERSC Global File System (NGF) Jason Hick jhick@lbl.gov Storage Systems Group Lead http://www.nersc.gov/nusers/systems/NGF/ CAS2K11 September 11-14, 2011 * Operated by University of California for the US Department of Energy * NERSC serves a large population - Approximately 4000 users, 400 projects, 500 codes - Focus on "unique" resources * High-end computing systems * High-end storage systems - Large shared GPFS (a.k.a. NGF) - Large archive (a.k.a. HPSS) * Interface to high speed

  19. MEPleRANDUM TO: FILE

    Office of Legacy Management (LM)

    MEPleRANDUM ( TO: FILE , , ------ --------iS"I;=~:ta,,,-;onFa;tedl/~~-r*z .-+a~* & 0 no; TYV= OF CP==ATION ---=-------aY----- 0 8:esearch & Develoyent B Facility Type Q Other information <i.e.,.ccst + fixed fee, unit price, Manufacturing University Research Organizatian I Government Sponsored iaci:i<y Other %&~!$-a---- : 0 F'rcduction scale testing 0 Filet Scale 0 Hench Scale Process 0 Thecrktical Studies 0 Sample 2 Anaiysis .B '.Ct-oduction 0 Disposai/Storage TYPE CIF

  20. File storage and I/O

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

    on NERSC systems. Thus these filesystems are designed to allow wide-scale file reading and writing from many compute nodes. The scratch filesystems are not intended for...

  1. Colorado - Access Permit Application File Review Checklist |...

    Open Energy Info (EERE)

    Jump to: navigation, search OpenEI Reference LibraryAdd to library General: Colorado - Access Permit Application File Review Checklist Author Colorado Department of Transportation...

  2. File:USFWSList.pdf | Open Energy Information

    Open Energy Info (EERE)

    1,650 pixels, file size: 79 KB, MIME type: applicationpdf, 5 pages) Summary US Fish and Wildlife Service Species List - Salt Wells Geothermal Drilling Project EA Licensing...

  3. Small file aggregation in a parallel computing system

    DOE Patents [OSTI]

    Faibish, Sorin; Bent, John M.; Tzelnic, Percy; Grider, Gary; Zhang, Jingwang

    2014-09-02

    Techniques are provided for small file aggregation in a parallel computing system. An exemplary method for storing a plurality of files generated by a plurality of processes in a parallel computing system comprises aggregating the plurality of files into a single aggregated file; and generating metadata for the single aggregated file. The metadata comprises an offset and a length of each of the plurality of files in the single aggregated file. The metadata can be used to unpack one or more of the files from the single aggregated file.

  4. File:06MTAMontanaOverdimensionalOrOverweightLoadPermit (1).pdf...

    Open Energy Info (EERE)

    MTAMontanaOverdimensionalOrOverweightLoadPermit (1).pdf Jump to: navigation, search File File history File usage Metadata File:06MTAMontanaOverdimensionalOrOverweightLoadPermit...

  5. Distributed File System Test Using Small FilesV1.1

    Energy Science and Technology Software Center (OSTI)

    2004-04-09

    This program tests distributed filesystems using small files for lock and metadata contention. It is useful for debugging.

  6. EIA Directory of Electronic Products, Second quarter 1994

    SciTech Connect (OSTI)

    Not Available

    1994-07-26

    EIA makes available for public use a series of machine-readable data files and computer models, on magnetic tapes; selected data files/models are also available on PC diskettes. The data files include: petroleum, natural gas, electricity, coal, integrated statistics, and consumption. Models include: petroleum, natural gas, electricity, coal, nuclear, and multifuel. On-line files and compact discs include: electronic publishing system, federal bulletin board, economic bulletin board, national trade data bank, national economic/social/environmental data bank, and FedWorld Gateway. For each product listed in this directory, an abstract describes the data published. Contact persons are provided, as are indexes.

  7. Accelerating the transfer in Technology Transfer

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

    Accelerating the transfer in Technology Transfer Community Connections: Your link to news and opportunities from Los Alamos National Laboratory Latest Issue:May 2016 all issues All Issues » submit Accelerating the transfer in Technology Transfer Express Licensing fast tracks commercialization. May 1, 2013 Division Leader Dave Pesiri Division Leader Dave Pesiri. Contact Editor Linda Anderman Email Community Programs Office Kurt Steinhaus Email Express Licensing program To better serve its

  8. Detailed Drawings of NERSC File Systems

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

    File System Drawing Detailed Drawings of NERSC File Systems Legend Note that "Fiber Channel" are multiple 1-1 direct connections between multiple devices, we use a cloud here to simplify the representations. Cori Scratch cori filesystem Project Last edited: 2016-04-29 11:34:36

  9. Logjam: A scalable unified log file archiver

    Energy Science and Technology Software Center (OSTI)

    2001-08-01

    Log files are a necessary record of events on any system. However, as systems scale, so does the volume of data captured. To complicate matters, this data can be distributed across all nodes within the system. This creates challenges in ways to obtain these files as well as archiving them in a consistent manner. It has become commonplace to develop a custom written utility for each system that is tailored specifically to that system. Formore » computer centers that contain multiple systems, each system would have their own respective utility for gathering and archiving log files. Each time a new log file is produced, a modification to the utility is necessary. With each modification, risks of errors could be introduced as well as spending time to introduce that change. This is precisely the purpose of logjam. Once installed, the code only requires modification when new features are required. A configuration file is used to identify each log file as well as where to harvest it and how to archive it. Adding a new log file is as simple as defining it in a configuration file and testing can be performed in the production environment.« less

  10. File:EIA-topfields.pdf | Open Energy Information

    Open Energy Info (EERE)

    to: navigation, search File File history File usage The 100 Volumetrically Largest U.S. Oil and Gas Fields Size of this preview: 776 600 pixels. Full resolution (6,600 ...

  11. File:Secondary wind factsheet.pdf | Open Energy Information

    Open Energy Info (EERE)

    this file. Metadata This file contains additional information, probably added from the digital camera or scanner used to create or digitize it. If the file has been modified from...

  12. File:Beaufort wind scale.pdf | Open Energy Information

    Open Energy Info (EERE)

    this file. Metadata This file contains additional information, probably added from the digital camera or scanner used to create or digitize it. If the file has been modified from...

  13. File:Intermediate wind factsheet.pdf | Open Energy Information

    Open Energy Info (EERE)

    this file. Metadata This file contains additional information, probably added from the digital camera or scanner used to create or digitize it. If the file has been modified from...

  14. File:Skystream specs powercurve.pdf | Open Energy Information

    Open Energy Info (EERE)

    this file. Metadata This file contains additional information, probably added from the digital camera or scanner used to create or digitize it. If the file has been modified from...

  15. File:TCEQ-CoreDataForm.pdf | Open Energy Information

    Open Energy Info (EERE)

    this file. Metadata This file contains additional information, probably added from the digital camera or scanner used to create or digitize it. If the file has been modified from...

  16. File:UST Construction Notification Form 0495.pdf | Open Energy...

    Open Energy Info (EERE)

    this file. Metadata This file contains additional information, probably added from the digital camera or scanner used to create or digitize it. If the file has been modified from...

  17. File:Hrow-application-checklist.pdf | Open Energy Information

    Open Energy Info (EERE)

    this file. Metadata This file contains additional information, probably added from the digital camera or scanner used to create or digitize it. If the file has been modified from...

  18. File:GWS-32.pdf | Open Energy Information

    Open Energy Info (EERE)

    this file. Metadata This file contains additional information, probably added from the digital camera or scanner used to create or digitize it. If the file has been modified from...

  19. File:Wind rough example.pdf | Open Energy Information

    Open Energy Info (EERE)

    this file. Metadata This file contains additional information, probably added from the digital camera or scanner used to create or digitize it. If the file has been modified from...

  20. File:GWS-31.pdf | Open Energy Information

    Open Energy Info (EERE)

    this file. Metadata This file contains additional information, probably added from the digital camera or scanner used to create or digitize it. If the file has been modified from...

  1. File:TCEQ-10204.pdf | Open Energy Information

    Open Energy Info (EERE)

    this file. Metadata This file contains additional information, probably added from the digital camera or scanner used to create or digitize it. If the file has been modified from...

  2. File:Ger geothermal form 1.pdf | Open Energy Information

    Open Energy Info (EERE)

    this file. Metadata This file contains additional information, probably added from the digital camera or scanner used to create or digitize it. If the file has been modified from...

  3. File:Elementray wind factsheet.pdf | Open Energy Information

    Open Energy Info (EERE)

    this file. Metadata This file contains additional information, probably added from the digital camera or scanner used to create or digitize it. If the file has been modified from...

  4. File:0 Overview - Hydro.pdf | Open Energy Information

    Open Energy Info (EERE)

    this file. Metadata This file contains additional information, probably added from the digital camera or scanner used to create or digitize it. If the file has been modified from...

  5. File:MacGyver windmills.pdf | Open Energy Information

    Open Energy Info (EERE)

    this file. Metadata This file contains additional information, probably added from the digital camera or scanner used to create or digitize it. If the file has been modified from...

  6. File:SWERA-202.pdf | Open Energy Information

    Open Energy Info (EERE)

    File File history File usage Solar: monthly and annual average global horizontal (GHI) GIS data at 40km resolution for Sri Lanka from NREL Size of this preview: 776 600...

  7. File:SWERA-253.pdf | Open Energy Information

    Open Energy Info (EERE)

    File File history File usage Solar: monthly and annual average global horizontal (GHI) GIS data at 40km resolution for Nepal from NREL Size of this preview: 776 600 pixels....

  8. File:NREL-africa-dir.pdf | Open Energy Information

    Open Energy Info (EERE)

    navigation, search File File history File usage Africa - Annual Direct Normal Solar Radiation (PDF) Size of this preview: 776 600 pixels. Full resolution (1,650 1,275...

  9. File:INL-geothermal-nm.pdf | Open Energy Information

    Open Energy Info (EERE)

    nm.pdf Jump to: navigation, search File File history File usage New Mexico Geothermal Resources Size of this preview: 466 599 pixels. Other resolution: 467 600 pixels. Full...

  10. File:SWERA-203.pdf | Open Energy Information

    Open Energy Info (EERE)

    search File File history File usage Solar: monthly and annual average latitude tilt GIS data at 40km for Sri Lanka from NREL Size of this preview: 776 600 pixels. Full...

  11. File:SWERA-254.pdf | Open Energy Information

    Open Energy Info (EERE)

    to: navigation, search File File history File usage Solar: monthly and annual latitude tilt horizontal GIS data at 40km resolution for Nepal from NREL Size of this preview: 776 ...

  12. File:SWERA-248.pdf | Open Energy Information

    Open Energy Info (EERE)

    8.pdf Jump to: navigation, search File File history File usage Solar: monthly latitude tilt GIS data at 40km resolution for Bangladesh from NREL Size of this preview: 776 600...

  13. Policy Flash Archive Search File | Department of Energy

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

    Policy Flash Archive Search File Policy Flash Archive Search File PDF icon Policy Flash Archive Search File.pdf More Documents & Publications Acquisition Letters Remaining In Effect Acquisition Letters Remaining In Effect Acquisition Letter Archive listing

  14. File:EIA-coalbed-gas.pdf | Open Energy Information

    Open Energy Info (EERE)

    coalbed-gas.pdf Jump to: navigation, search File File history File usage Coalbed Methane Fields, Lower 48 States Size of this preview: 776 600 pixels. Full resolution (1,650...

  15. File:EIA-cbmusa1.pdf | Open Energy Information

    Open Energy Info (EERE)

    cbmusa1.pdf Jump to: navigation, search File File history File usage Coalbed Methane Status Map Size of this preview: 800 480 pixels. Full resolution (9,000 5,400 pixels,...

  16. File:BLM MOU Geothermal.pdf | Open Energy Information

    Open Energy Info (EERE)

    file size: 187 KB, MIME type: applicationpdf, 15 pages) File history Click on a datetime to view the file as it appeared at that time. DateTime Thumbnail Dimensions User...

  17. File:06 - ConstructionPermitsOverview.pdf | Open Energy Information

    Open Energy Info (EERE)

    file size: 111 KB, MIME type: applicationpdf, 2 pages) File history Click on a datetime to view the file as it appeared at that time. DateTime Thumbnail Dimensions User...

  18. File:NREL-afg-wind.pdf | Open Energy Information

    Open Energy Info (EERE)

    afg-wind.pdf Jump to: navigation, search File File history File usage Afghanistan 50 m Wind Power (PDF) Size of this preview: 776 600 pixels. Full resolution (1,650 1,275...

  19. File:CV TidePotential.pdf | Open Energy Information

    Open Energy Info (EERE)

    CV TidePotential.pdf Jump to: navigation, search File File history File usage Cape Verde-Map Summarizing Tide Potential Size of this preview: 776 600 pixels. Full resolution...

  20. File:CV WindSpeed.pdf | Open Energy Information

    Open Energy Info (EERE)

    CV WindSpeed.pdf Jump to: navigation, search File File history File usage Cape Verde-Map Summarizing Average Wind Speed (ms) Size of this preview: 776 600 pixels. Full...

  1. File:NREL-africa-tilt.pdf | Open Energy Information

    Open Energy Info (EERE)

    tilt.pdf Jump to: navigation, search File File history File usage Africa - Annual Flat Plate Tilted at Latitude (PDF) Size of this preview: 776 600 pixels. Full resolution...

  2. File:EIA-offshore-gas.pdf | Open Energy Information

    Open Energy Info (EERE)

    offshore-gas.pdf Jump to: navigation, search File File history File usage Natural Gas Production in Offshore Fields, Lower 48 States Size of this preview: 776 600 pixels. Full...

  3. Sample of E-file Application | Department of Energy

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

    Sample of E-file Application Sample of E-file Application PDF icon Sample of E-file Application More Documents & Publications pocforms06a0399.doc&0; SEMI-ANNUAL REPORTS FOR GOLDEN ...

  4. Data Transfer Nodes

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

    Transfer » Data Transfer Nodes Data Transfer Nodes A redirector page has been set up without anywhere to redirect to. Last edited: 2016-04-29 11:35:12

  5. File:EO 13186.pdf | Open Energy Information

    Open Energy Info (EERE)

    Birds Metadata This file contains additional information, probably added from the digital camera or scanner used to create or digitize it. If the file has been modified from...

  6. File:POD Solar 121911.pdf | Open Energy Information

    Open Energy Info (EERE)

    Outline Metadata This file contains additional information, probably added from the digital camera or scanner used to create or digitize it. If the file has been modified from...

  7. File:Mou-34.pdf | Open Energy Information

    Open Energy Info (EERE)

    (2006) Metadata This file contains additional information, probably added from the digital camera or scanner used to create or digitize it. If the file has been modified from...

  8. Energy.gov File Naming Conventions for Downloads | Department...

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

    When uploading files to download pages in Energy.gov's content management system (CMS), follow these guidelines for naming files on Office of Energy Efficiency and Renewable Energy ...

  9. V-117: Symantec Enterprise Vault for File System Archiving Unquoted...

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

    for File System Archiving Unquoted Search Path Lets Local Users Gain Elevated Privileges V-117: Symantec Enterprise Vault for File System Archiving Unquoted Search Path Lets Local...

  10. DOE Releases Filing Instructions for Federal Risk Insurance for...

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

    Filing Instructions for Federal Risk Insurance for New Nuclear Power Plants DOE Releases Filing Instructions for Federal Risk Insurance for New Nuclear Power Plants December 21, ...

  11. Frequently Asked Questions on Filing EISs with EPA's Office of...

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

    Frequently Asked Questions on Filing EISs with EPA's Office of Federal Activities (EPA, 1994) Frequently Asked Questions on Filing EISs with EPA's Office of Federal Activities (EPA, ...

  12. NERSC Online Training May 3: Navigating NERSC File Systems

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

    Online Training May 3: Navigating NERSC File Systems NERSC Online Training May 3: Navigating NERSC File Systems April 26, 2011 by Richard Gerber A NERSC training event, "Navigating...

  13. Hopper File Management Tool (Conference) | SciTech Connect

    Office of Scientific and Technical Information (OSTI)

    Conference: Hopper File Management Tool Citation Details In-Document Search Title: Hopper File Management Tool You are accessing a document from the Department of Energy's (DOE) ...

  14. Bandwidth and Transfer Activity

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

    average. Graphs for the last 8 days. Historical yearly peak days. Daily Storage Concurrency Transfer Activity This graph shows the number of transfers to the storage systems...

  15. NREL: Technology Transfer - Ombuds

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

    Technology Transfer Ombuds NREL's Technology Transfer Ombuds offers an informal process to help resolve issues and concerns regarding the laboratory's technology partnership,...

  16. Localized radio frequency communication using asynchronous transfer mode protocol

    DOE Patents [OSTI]

    Witzke, Edward L.; Robertson, Perry J.; Pierson, Lyndon G.

    2007-08-14

    A localized wireless communication system for communication between a plurality of circuit boards, and between electronic components on the circuit boards. Transceivers are located on each circuit board and electronic component. The transceivers communicate with one another over spread spectrum radio frequencies. An asynchronous transfer mode protocol controls communication flow with asynchronous transfer mode switches located on the circuit boards.

  17. Power Electronics | Department of Energy

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

    ... Device Letters, IEEE. Sept 2010 Lu, B.; Palacios ,T. "High Breakdown ( > 1500 V ) AlGaNGaN HEMTs by Substrate-Transfer Technology" Electron Device Letters, IEEE. Sept 2010. Lu, ...

  18. File:Energy Data Jam - Attachment C.pdf | Open Energy Information

    Open Energy Info (EERE)

    Involved Help Apps Datasets Community Login | Sign Up Search File Edit History File:Energy Data Jam - Attachment C.pdf Jump to: navigation, search File File history File usage...

  19. File:NREL-ca-80m.pdf | Open Energy Information

    Open Energy Info (EERE)

    File Edit with form History File:NREL-ca-80m.pdf Jump to: navigation, search File File history File usage California Annual Average Wind Speed at 80 Meters Size of this preview:...

  20. File:NREL-al-80m.pdf | Open Energy Information

    Open Energy Info (EERE)

    File Edit with form History File:NREL-al-80m.pdf Jump to: navigation, search File File history File usage Alabama Annual Average Wind Speed at 80 Meters (PDF) Size of this preview:...

  1. File:NREL-ak-50m.pdf | Open Energy Information

    Open Energy Info (EERE)

    Help Apps Datasets Community Login | Sign Up Search File Edit with form History File:NREL-ak-50m.pdf Jump to: navigation, search File File history File usage Alaska Mainland...

  2. File:NREL-50m-Alaska-Wind-Map.pdf | Open Energy Information

    Open Energy Info (EERE)

    File Edit with form History File:NREL-50m-Alaska-Wind-Map.pdf Jump to: navigation, search File File history File usage Alaska 50m Wind Resource (PDF) Size of this preview: 776 ...

  3. File:NREL-ar-80m.pdf | Open Energy Information

    Open Energy Info (EERE)

    File Edit with form History File:NREL-ar-80m.pdf Jump to: navigation, search File File history File usage Arkansas Annual Average Wind Speed at 80 Meters Size of this preview: 463...

  4. File:NREL-ak2-50m.pdf | Open Energy Information

    Open Energy Info (EERE)

    File Edit with form History File:NREL-ak2-50m.pdf Jump to: navigation, search File File history File usage Alaska Panhandle Annual Average Wind Speed at 50 Meters (PDF) Size of...

  5. Wireless Power Transfer

    SciTech Connect (OSTI)

    2013-07-22

    Wireless Power Transfer is an innovative approach using magnetic resonance coupling of air core transformers designed for today's growing plug-in electric vehicle market. This technology can provide a convenient, safe and flexible means to charge electric vehicles under stationary and dynamic conditions. Plug-in Electric Vehicles (PEV) are burdened by the need for cable and plug charger, galvanic isolation of the on-board electronics, bulk and cost of this charger and the large energy storage system (ESS) packs needed. With a system where you have to physically plug in there are a number of occasions where the owner could very well forget to charge the vehicle. For stationary applications (like charging of a PHEV at home), ORNL's innovative wireless power transfer technology adds a convenience factor compared to actually plugging in which will mean that the vehicle will have a full charge every morning. Electric vehicle charging must be safe, compact and efficient in order to be convenient for customers. By reconfiguring the transformer and altering the resonance frequency, energy is transferred to the battery with lower energy losses and with fewer demands on the primary circuit by the rest of the transformer system. The ORNL discovery shows that sufficient power for the battery can be transferred from the primary to secondary circuits without significant energy losses if the operating frequency is set at 50% to 95% of the resonance frequency of the circuit. The electrical power is then transmitted to the chargeable battery, which is electrically coupled to the secondary circuit through the air core transformer. Some advantages include: Reduced energy losses during transfer of energy to the battery; A charge potential that is relatively unaffected by up to 25% misalignment of vehicle; and Other receiving components draw less power from the primary circuit. These advantages allow wireless power technology applications to expand at the workplace and beyond as the demand for EV rises. For vehicles that operate over a fixed route such as busses and shuttle vehicles, Wireless Power Transfer (WPT) means that a smaller battery pack can be used. In the traditional system, the battery pack is designed to accommodate the needs of the entire route or shift. With WPT the battery can be downsized because it can be charged when the vehicle stops on its route (a rental car shuttle bus, for example, can charge when it waits in the terminal and again when it waits at the rental car place. Thus the battery only needs enough charge to get to the next stop. This decrease in battery size means significant cost savings to electrify the vehicle. This technology enables efficient "opportunity charging stations" for predefined routes and planned stops reducing down time. Charging can occur in minutes. This improvement also eliminates the harmful emissions that occur in garages while buses are at idle during charging. In larger cities, dynamic charging offers an even greater impact utilizing existing infrastructure. As vehicles travel along busy freeways and interstate systems, wireless charging can occur while the vehicle is in motion. With this technology a vehicle essentially has unlimited electric range while using a relatively small battery pack. In-motion charging stations use vehicle sensors to alert the driver. Traveling at normal speeds, sensors establish in-motion charging. WPT transmit pads sequentially energize to the negotiated power level based on vehicle speed and its requested charging energy. Lower power when vehicle speed is slow and much higher power for faster moving vehicles. Vehicle to Infrastructure communications (V2I) coordinates WPT charging level according to on-board battery pack state-of-charge. V2I activates the roadway transmit pads placing them in standby mode and negotiates charging fee based on prevailing grid rate and vehicle energy demand. Dynamic charging would allow electricity to supply a very large fraction of the energy for the transportation sector and reduce greatly petroleum consump

  6. Data Transfer Nodes

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

    Data Transfer Nodes Data Transfer Nodes PDSF has dedicated nodes for grid services and data transfers named pdsfdtn1.nersc.gov and pdsfdtn2.nersc.gov. Both nodes have 10 Gb/s network connections to the NERSC network. Please avoid using the interactive nodes for bulk data transfer. Not only can it be disruptive to other users but the network connection is only 1 Gb/s so it will take longer. For transfers using /project and/or HPSS use the NERSC data transfer nodes - see the NERSC data transfer

  7. Interoperability format translation and transformation between IFC architectural design file and simulation file formats

    DOE Patents [OSTI]

    Chao, Tian-Jy; Kim, Younghun

    2015-01-06

    Automatically translating a building architecture file format (Industry Foundation Class) to a simulation file, in one aspect, may extract data and metadata used by a target simulation tool from a building architecture file. Interoperability data objects may be created and the extracted data is stored in the interoperability data objects. A model translation procedure may be prepared to identify a mapping from a Model View Definition to a translation and transformation function. The extracted data may be transformed using the data stored in the interoperability data objects, an input Model View Definition template, and the translation and transformation function to convert the extracted data to correct geometric values needed for a target simulation file format used by the target simulation tool. The simulation file in the target simulation file format may be generated.

  8. Interoperability format translation and transformation between IFC architectural design file and simulation file formats

    DOE Patents [OSTI]

    Chao, Tian-Jy; Kim, Younghun

    2015-02-03

    Automatically translating a building architecture file format (Industry Foundation Class) to a simulation file, in one aspect, may extract data and metadata used by a target simulation tool from a building architecture file. Interoperability data objects may be created and the extracted data is stored in the interoperability data objects. A model translation procedure may be prepared to identify a mapping from a Model View Definition to a translation and transformation function. The extracted data may be transformed using the data stored in the interoperability data objects, an input Model View Definition template, and the translation and transformation function to convert the extracted data to correct geometric values needed for a target simulation file format used by the target simulation tool. The simulation file in the target simulation file format may be generated.

  9. TECHNOLOGY TRANSFER COORDINATORS

    Broader source: Energy.gov [DOE]

    Mark Hartney, Director of the Office of Strategic Planning, SLAC, discussed technology transfer at SLAC. Bob Hwang, Director, Transportation Energy Center, Combustion Research Facility, SNL presented on technology transfer at SNL. Elsie Quaite-Randall, Chief Technology Transfer Officer, Innovation and Partnerships Office, LBNL, presented on technology transfer at LBNL. Richard A. Rankin, Director, Industrial Partnerships Office and Economic Development Office (Interim), LLNL, presented on technology transfer at LLNL.

  10. Optimizing Native Files in Energy.gov

    Broader source: Energy.gov [DOE]

    For native files in Energy.gov, following these best practices will result in better search results in commercial search engines. To learn how to optimize PDFs, see the PDF requirements.

  11. Transportation and Energy Use Data Files

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

    and not the individual files. You can however find pkunzip.exe on several other Internet sites. If you download PKZ204g.exe to a separate directory, type PKZ204g and press...

  12. Instructions to CBECS 1992 Microdata Files

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

    and dBASE (CE92F01D.DBF) formats. These files contain the 1992 CBECS basic data including building characteristics, energy consumption and expenditures, and temperature data. The...

  13. File:AEOearlyrelease.pdf | Open Energy Information

    Open Energy Info (EERE)

    599 pixels. Other resolution: 464 600 pixels. Go to page 1 2 3 4 5 6 7 8 9 10 11 12 Go next page next page Full resolution (1,275 1,650 pixels, file size:...

  14. File:Susquehannariver.pdf | Open Energy Information

    Open Energy Info (EERE)

    file as it appeared at that time. DateTime Thumbnail Dimensions User Comment current 15:56, 9 February 2012 Thumbnail for version as of 15:56, 9 February 2012 1,650 1,275, 24...

  15. Index of /datasets/files/39/pub

    Open Energy Info (EERE)

    a file-level view of datasets. Go back to Datasets Listing About us Disclaimers Energy blogs Linked Data Developer services OpenEI partners with a broad range of international...

  16. Reads and Plots PCM Data Files

    Energy Science and Technology Software Center (OSTI)

    1999-08-23

    WINPLOT21 reads and plots PCM (Pulse code modulated) data files. The data files must contain the PCM data formatted per IRIG 106 Telemetry standards. The contents of the data files are interpreted using information found in ancillary calibration file that can be created using a Calibration Wizard feature of this program. PCM data is read in and scaled to engineering units. First and second order equations are applied to the engineering units. The user hasmore » the option of plotting the raw PCM counts, engineering units, integrated engineering units, or second order integration of the engineering units. A Butterworth filter can be applied to the engineering units if the source of the data is not a PCM subcommed channel. Scroll bars allow for zooming in along both the x and y axis.« less

  17. Discussion of EIA-411 Data Files

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

    Discussion of Data Files Release Date: December 22, 2011 Next Release Date: November 2012 Historical data are shown with the inclusion of the 'old' regional entity names and that ...

  18. following an electron bunch for free electron laser

    SciTech Connect (OSTI)

    2012-01-01

    A video artist's ultra-slow-motion impression of an APEX-style electron gun firing a continuous train of electron bunches into a superconducting linear accelerator (in reality this would happen a million times a second). As they approach the speed of light the bunches contract, maintaining beam quality. After acceleration, the electron bunches are diverted into one or more undulators, the key components of free electron lasers. Oscillating back and forth in the changing magnetic field, they create beams of structured x-ray pulses. Before entering the experimental areas the electron bunches are diverted to a beam dump. (Animation created by Illumina Visual, http://www.illuminavisual.com/, for Lawrence Berkeley National Laboratory. Music for this excerpt, "Feeling Dark (Behind The Mask)" is by 7OOP3D http://ccmixter.org/files/7OOP3D/29126 and is licensed under a Creative Commons license: http://creativecommons.org/licenses/by-nc/3.0/)

  19. OHA Product Efficiency Cases Archive File | Department of Energy

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

    Product Efficiency Cases Archive File OHA Product Efficiency Cases Archive File This is a archive file of our Product Efficiency decisions, Please download this file to your local computer and use the build in adobe search feature. Individual cases are listed in the bookmark section of the PDF file. PDF icon Product_Efficiency_Cases_Archive.pdf More Documents & Publications EXC-12-0005 - In the Matter of Halco Lighting Technologies EXC-12-0008 - In the Matter of Litetronics International,

  20. Wireless adiabatic power transfer

    SciTech Connect (OSTI)

    Rangelov, A.A.; Suchowski, H.; Silberberg, Y.; Vitanov, N.V.

    2011-03-15

    Research Highlights: > Efficient and robust mid-range wireless energy transfer between two coils. > The adiabatic energy transfer is analogous to adiabatic passage in quantum optics. > Wireless energy transfer is insensitive to any resonant constraints. > Wireless energy transfer is insensitive to noise in the neighborhood of the coils. - Abstract: We propose a technique for efficient mid-range wireless power transfer between two coils, by adapting the process of adiabatic passage for a coherently driven two-state quantum system to the realm of wireless energy transfer. The proposed technique is shown to be robust to noise, resonant constraints, and other interferences that exist in the neighborhood of the coils.