Sample records for determination gila-knob structure

  1. CX-010545: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Gila Knob Transmission Line Crossarm Replacement at Structure 18/3 CX(s) Applied: B4.6 Date: 06/03/2013 Location(s): California Offices(s): Western Area Power Administration-Desert Southwest Region

  2. CX-007151: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Gila-Knob Structure, Access Road Maintenance & Vegetation RemovalCX(s) Applied: B4.6Date: 02/07/2011Location(s): Yuma County, AZ; Imperial County, CA, Arizona, CaliforniaOffice(s): Western Area Power Administration-Desert Southwest Region

  3. CX-007150: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Gila-Knob Structure, Access Road Maintenance & Vegetation RemovalCX(s) Applied: B4.6Date: 08/02/2011Location(s): Yuma County, AZ; Imperial County, CA, Arizona, CaliforniaOffice(s): Western Area Power Administration-Desert Southwest Region

  4. CX-007149: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Gila-Knob Structure, Access Road Maintenance & Vegetation Removal Amendment 1CX(s) Applied: B4.6Date: 02/18/2011Location(s): Yuma County, AZ; Imperial County, CA, Arizona, CaliforniaOffice(s): Western Area Power Administration-Desert Southwest Region

  5. CX-011203: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Emergency Storm Damage Repairs to the Gila North Gila, Gila Knob, and Sonora San Luis Transmission Lines, near Yuma, Yuma County, Arizona CX(s) Applied: B4.6 Date: 08/26/2013 Location(s): Arizona Offices(s): Western Area Power Administration-Desert Southwest Region

  6. Structure determination of enterovirus 71

    SciTech Connect (OSTI)

    Plevka, Pavel; Perera, Rushika; Cardosa, Jane; Kuhn, Richard J.; Rossmann, Michael G. (Purdue); (Sentinext)

    2013-02-20T23:59:59.000Z

    Enterovirus 71 is a picornavirus that causes hand, foot and mouth disease but may induce fatal neurological illness in infants and young children. Enterovirus 71 crystallized in a body-centered orthorhombic space group with two particles in general orientations in the crystallographic asymmetric unit. Determination of the particle orientations required that the locked rotation function excluded the twofold symmetry axes from the set of icosahedral symmetry operators. This avoided the occurrence of misleading high rotation-function values produced by the alignment of icosahedral and crystallographic twofold axes. Once the orientations and positions of the particles had been established, the structure was solved by molecular replacement and phase extension.

  7. Structural determinants of sigma receptor affinity

    SciTech Connect (OSTI)

    Largent, B.L.; Wikstroem, H.G.; Gundlach, A.L.; Snyder, S.H.

    1987-12-01T23:59:59.000Z

    The structural determinants of sigma receptor affinity have been evaluated by examining a wide range of compounds related to opioids, neuroleptics, and phenylpiperidine dopaminergic structures for affinity at sigma receptor-binding sites labeled with (+)-(/sup 3/H)3-PPP. Among opioid compounds, requirements for sigma receptor affinity differ strikingly from the determinants of affinity for conventional opiate receptors. Sigma sites display reverse stereoselectivity to classical opiate receptors. Multi-ringed opiate-related compounds such as morphine and naloxone have negligible affinity for sigma sites, with the highest sigma receptor affinity apparent for benzomorphans which lack the C ring of opioids. Highest affinity among opioids and other compounds occurs with more lipophilic N-substituents. This feature is particularly striking among the 3-PPP derivatives as well as the opioids. The butyrophenone haloperidol is the most potent drug at sigma receptors we have detected. Among the series of butyrophenones, receptor affinity is primarily associated with the 4-phenylpiperidine moiety. Conformational calculations for various compounds indicate a fairly wide range of tolerance for distances between the aromatic ring and the amine nitrogen, which may account for the potency at sigma receptors of structures of considerable diversity. Among the wide range of structures that bind to sigma receptor-binding sites, the common pharmacophore associated with high receptor affinity is a phenylpiperidine with a lipophilic N-substituent.

  8. Determination of Structural Carbohydrates and Lignin in Biomass...

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

    Determination of Structural Carbohydrates and Lignin in Biomass Laboratory Analytical Procedure (LAP) Issue Date: April 2008 Revision Date: August 2012 (Version 08-03-2012) A....

  9. Electron Diffraction Determination of Nanoscale Structures

    SciTech Connect (OSTI)

    Parks, Joel H

    2013-03-01T23:59:59.000Z

    Dominant research results on adsorption on gold clusters are reviewed, including adsorption of H{sub 2}O and O{sub 2} on gold cluster cations and anions, kinetics of CO adsorption to middle sized gold cluster cations, adsorption of CO on Au{sub n}{sup +} with induced changes in structure, and H{sub 2}O enhancement of CO adsorption.

  10. Structural Determination of Marine Bacteriogenic Manganese Oxides

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What'sis Taking Over Our Instagram Secretary900SteepStrengthening northernDetermination of Marine

  11. Photoelectron holography applied to surface structural determination

    SciTech Connect (OSTI)

    Petersen, B.L.

    1995-05-01T23:59:59.000Z

    Photoemitted electron waves are used as coherent source waves for angstrom-scale holographic imaging of local atomic geometry at surfaces. Electron angular distribution patterns are collected above a sample surface and serve as a record of the interference between source wave and waves scattered from surrounding ion cores. Using a mathematical imaging integral transformation, the three-dimensional structural information is obtained directly from these collected patterns. Patterns measured with different electron kinetic energies are phase-summed for image improvement. Pt (111) surface is used as a model system. A pattern 9.6{angstrom}{sup {minus}1} (351 eV) is used to generate a full 3-D image of atom locations around an emitter with nearest neighbors within 0.l{angstrom} of the expected bulk positions. Atoms several layers beyond the nearest neighbors are also apparent. Twin-image reduction and artifact suppression is obtained by phase-summing eight patterns measured from 8.8 to 10.2{angstrom}{sup {minus}1} (295 to 396 eV). 32 were measured in 0.2{angstrom}{sup {minus}1} steps from 6.0 to 12.2{angstrom}{sup {minus}1} (137 to 567 eV) are presented here. Simple models of two-slit interference are compared with electron scattering to illuminate understanding of holographic recording of the structural information. This also shows why it sometimes fails due to destructive interferences. Simple theoretical models of electron scattering are compared to experiment to show the origin of the structural information and the differences that result from atomic scattering and from the source wave. Experimental parameters and their relation to imaging is discussed. Comparison is made to the Pt pattern measured at 351 eV using the simple theoretical model. The remaining data set is also modeled, and the eight appropriate theoretical patterns are used to regenerate the multiple-wavenumber experimental result. A clean Cu (001) surface is also measured and imaged.

  12. Automating the determination of 3D protein structure

    SciTech Connect (OSTI)

    Rayl, K.D.

    1993-12-31T23:59:59.000Z

    The creation of an automated method for determining 3D protein structure would be invaluable to the field of biology and presents an interesting challenge to computer science. Unfortunately, given the current level of protein knowledge, a completely automated solution method is not yet feasible, therefore, our group has decided to integrate existing databases and theories to create a software system that assists X-ray crystallographers in specifying a particular protein structure. By breaking the problem of determining overall protein structure into small subproblems, we hope to come closer to solving a novel structure by solving each component. By generating necessary information for structure determination, this method provides the first step toward designing a program to determine protein conformation automatically.

  13. Protein structure determination using a database of interatomic distance probabilities

    E-Print Network [OSTI]

    Phillips, George N. Jr.

    determination and molecular modeling. An energy function, or database potential, is derived from distributionsProtein structure determination using a database of interatomic distance probabilities MICHAEL E for Advanced Science and Technology and National Center for Supercomputing Applications, University of Illinois

  14. LEED structure determination of the 3R30-Sn surface

    E-Print Network [OSTI]

    Soares, Edmar Avellar

    diffraction (LEED); Surface structure, morphology, roughness, and topography; Surface relaxationLEED structure determination of the Ni(111)ð p 3 Â p 3ÞR30°-Sn surface E.A. Soares a , C surface phase. The results confirm that the surface layer comprises a substitutional alloy of composition

  15. Helium fine structure theory for determination of Krzysztof Pachucki

    E-Print Network [OSTI]

    Pachucki, Krzysztof

    Helium fine structure theory for determination of Krzysztof Pachucki Institute of Theoretical in the calculation of helium fine-structure splitting of the 23 PJ states, based on the quantum electrodynamic theory by comparison with all experimental results for light helium-like ions and with the known large nuclear charge

  16. Structural determination of intact proteins using mass spectrometry

    DOE Patents [OSTI]

    Kruppa, Gary (San Francisco, CA); Schoeniger, Joseph S. (Oakland, CA); Young, Malin M. (Livermore, CA)

    2008-05-06T23:59:59.000Z

    The present invention relates to novel methods of determining the sequence and structure of proteins. Specifically, the present invention allows for the analysis of intact proteins within a mass spectrometer. Therefore, preparatory separations need not be performed prior to introducing a protein sample into the mass spectrometer. Also disclosed herein are new instrumental developments for enhancing the signal from the desired modified proteins, methods for producing controlled protein fragments in the mass spectrometer, eliminating complex microseparations, and protein preparatory chemical steps necessary for cross-linking based protein structure determination.Additionally, the preferred method of the present invention involves the determination of protein structures utilizing a top-down analysis of protein structures to search for covalent modifications. In the preferred method, intact proteins are ionized and fragmented within the mass spectrometer.

  17. Determining the People Capacity of a Structure May 7, 1999

    E-Print Network [OSTI]

    Mitchener, W. Garrett

    sustaining injury? Another important issue is that of comfort: how many people can be #12;t in a room, during, in an overcrowded room, might leave many people injured in the rush to exit whether or not the threat is realTeam 243 Determining the People Capacity of a Structure Team 243 May 7, 1999 1 Introduction

  18. SHELXT – Integrated space-group and crystal-structure determination

    SciTech Connect (OSTI)

    Sheldrick, George M., E-mail: gsheldr@shelx.uni-ac.gwdg.de [Georg-August Universität Göttingen, Tammannstrasse 4, Göttingen, 37077 (Germany)

    2015-01-01T23:59:59.000Z

    SHELXT automates routine small-molecule structure determination starting from single-crystal reflection data, the Laue group and a reasonable guess as to which elements might be present. The new computer program SHELXT employs a novel dual-space algorithm to solve the phase problem for single-crystal reflection data expanded to the space group P1. Missing data are taken into account and the resolution extended if necessary. All space groups in the specified Laue group are tested to find which are consistent with the P1 phases. After applying the resulting origin shifts and space-group symmetry, the solutions are subject to further dual-space recycling followed by a peak search and summation of the electron density around each peak. Elements are assigned to give the best fit to the integrated peak densities and if necessary additional elements are considered. An isotropic refinement is followed for non-centrosymmetric space groups by the calculation of a Flack parameter and, if appropriate, inversion of the structure. The structure is assembled to maximize its connectivity and centred optimally in the unit cell. SHELXT has already solved many thousand structures with a high success rate, and is optimized for multiprocessor computers. It is, however, unsuitable for severely disordered and twinned structures because it is based on the assumption that the structure consists of atoms.

  19. Method and apparatus for determining material structural integrity

    DOE Patents [OSTI]

    Pechersky, M.J.

    1994-01-01T23:59:59.000Z

    Disclosed are a nondestructive method and apparatus for determining the structural integrity of materials by combining laser vibrometry with damping analysis to determine the damping loss factor. The method comprises the steps of vibrating the area being tested over a known frequency range and measuring vibrational force and velocity vs time over the known frequency range. Vibrational velocity is preferably measured by a laser vibrometer. Measurement of the vibrational force depends on the vibration method: if an electromagnetic coil is used to vibrate a magnet secured to the area being tested, then the vibrational force is determined by the coil current. If a reciprocating transducer is used, the vibrational force is determined by a force gauge in the transducer. Using vibrational analysis, a plot of the drive point mobility of the material over the preselected frequency range is generated from the vibrational force and velocity data. Damping loss factor is derived from a plot of the drive point mobility over the preselected frequency range using the resonance dwell method and compared with a reference damping loss factor for structural integrity evaluation.

  20. Anthraquinone Photonuclease Structure Determines Its Mode of Binding to DNA and the Cleavage

    E-Print Network [OSTI]

    Williams, Loren

    Anthraquinone Photonuclease Structure Determines Its Mode of Binding to DNA and the Cleavage recently described a set of anthraquinone derivatives that act as photonucleases.6 Three classes

  1. Determinants of Role Structure in Family Financial Management

    E-Print Network [OSTI]

    Rosen, Dennis L.; Granbois, Donald H.

    1983-01-01T23:59:59.000Z

    Variables determining the role of husband and wife in family financial management are explored based on in-home, personal interviews. Financial tasks reflecting implementation activities and two groupings of decision ...

  2. Determining Factors Influencing Nuclear Envelope and Nuclear Pore Complex Structure.

    E-Print Network [OSTI]

    Gouni, Sushanth

    2013-02-04T23:59:59.000Z

    The cell’s nuclear envelope (NE) has pores that are stabilized by nuclear pore complexes (NPC), large proteinaceous structures whose function is to mediate transport between the nucleus and cytoplasm. Although the transport process is well studied...

  3. Molecular structure determination on a computational and data grid

    E-Print Network [OSTI]

    Miller, Russ

    Õs ability to present the user with a large computational infrastructure that will allow for the processing in a routine fashion to solve difficult atomic resolution structures, containing as many as 1000 unique non-hydrogen

  4. Supporting Information Structure Determination Using the Method of Continuous Variations

    E-Print Network [OSTI]

    Collum, David B.

    Structure(s) Page TMEDA dimer S8 dimer S9 Et2O tetramer 5 equiv-S10 neat-S11 trimer S12 MeCN tetramer S13 tetramer S14 pyridine tetramer S15 tetramer S16 OLi F 1 2 OLi OLi CH3H3C OLi CH3H3C Cl3 4 OLi F 1 2 OLi OLi pyridine dimer S17 DMA tetramer S18 tetramer S19 DMF tetramer S20 DMSO tetramer 6 Li-S21 19 F-S22 trimer

  5. Liquid Holdup Profiles in Structured Packing Determined via Neutron Radiography

    E-Print Network [OSTI]

    Eldridge, R. Bruce

    scans of an operating air-water contactor were performed at the NIST Center for Neutron Research (NCNR packings are widely employed in vapor-liquid contacting devices for distillation, absorption, and stripping. The high specific surface areas (ap), regular geometries, and high void fraction () of structured packing

  6. Generalized Probability Theories: What determines the structure of quantum theory?

    E-Print Network [OSTI]

    Peter Janotta; Haye Hinrichsen

    2014-08-13T23:59:59.000Z

    The framework of generalized probabilistic theories is a powerful tool for studying the foundations of quantum physics. It provides the basis for a variety of recent findings that significantly improve our understanding of the rich physical structure of quantum theory. This review paper tries to present the framework and recent results to a broader readership in an accessible manner. To achieve this, we follow a constructive approach. Starting from few basic physically motivated assumptions we show how a given set of observations can be manifested in an operational theory. Furthermore, we characterize consistency conditions limiting the range of possible extensions. In this framework classical and quantum theory appear as special cases, and the aim is to understand what distinguishes quantum mechanics as the fundamental theory realized in nature. It turns out non-classical features of single systems can equivalently result from higher dimensional classical theories that have been restricted. Entanglement and non-locality, however, are shown to be genuine non-classical features.

  7. Gila to North Gila Transmission Line Rebuild

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

    the new APS line. Western's land action entails acquiring up to an additional 50 feet right-of-way adjacent to the existing Gila Knob ROW, transferring a portion of the Gila...

  8. Investigation of the most appropriate capital structure theory and leverage level determinants 

    E-Print Network [OSTI]

    Lew, Sung Hee

    2012-10-03T23:59:59.000Z

    This thesis examines capital structure theories and debt level determinants to develop a better understanding, and to establish the most appropriate theory to explain the behaviour of firms? debt and equity choices. It ...

  9. ON THE USE OF EXTENDED X-RAY ABSORPTION FINE STRUCTURE SPECTROSCOPY TO DETERMINE THE BONDING CONFIGURATIONS OF

    E-Print Network [OSTI]

    Sparks, Donald L.

    ON THE USE OF EXTENDED X-RAY ABSORPTION FINE STRUCTURE SPECTROSCOPY TO DETERMINE THE BONDING Rights Reserved #12;ON THE USE OF EXTENDED X-RAY ABSORPTION FINE STRUCTURE SPECTROSCOPY TO DETERMINE

  10. Determination of transient atomic structure of laser-excited materials from time-resolved diffraction data

    SciTech Connect (OSTI)

    Giret, Yvelin [The Institute of Scientific and Industrial Research (ISIR), Osaka University, Mihogaoka 8-1, Ibaraki, Osaka 567-0047 (Japan) [The Institute of Scientific and Industrial Research (ISIR), Osaka University, Mihogaoka 8-1, Ibaraki, Osaka 567-0047 (Japan); Department of Physics and Astronomy, University College London, Gower Street, WC1E 6BT London (United Kingdom); Naruse, Nobuyasu; Murooka, Yoshie; Yang, Jinfeng; Tanimura, Katsumi [The Institute of Scientific and Industrial Research (ISIR), Osaka University, Mihogaoka 8-1, Ibaraki, Osaka 567-0047 (Japan)] [The Institute of Scientific and Industrial Research (ISIR), Osaka University, Mihogaoka 8-1, Ibaraki, Osaka 567-0047 (Japan); Daraszewicz, Szymon L.; Duffy, Dorothy M.; Shluger, Alexander L. [Department of Physics and Astronomy, University College London, Gower Street, WC1E 6BT London (United Kingdom)] [Department of Physics and Astronomy, University College London, Gower Street, WC1E 6BT London (United Kingdom)

    2013-12-16T23:59:59.000Z

    The time evolution of the Bragg peaks of photo-excited gold nanofilms is measured using transmission ultrafast electron diffraction (UED) with 3.0 MeV electron pulses and the corresponding structure evolution is calculated using two-temperature molecular dynamics (2T-MD). The good agreement obtained between the measured and calculated Bragg peaks, over the full experimental timescale, enables the lattice temperature effects and the structural changes to be disentangled for the first time. The agreement demonstrates that 2T-MD is a reliable method for solving the inverse problem of structure determination of laser irradiated metals in UED measurements.

  11. Lithium Enolates of Simple Ketones: Structure Determination Using the Method of Continuous Variation

    E-Print Network [OSTI]

    Collum, David B.

    Lithium Enolates of Simple Ketones: Structure Determination Using the Method of Continuous of continuous variation in conjunction with 6Li NMR spectroscopy was used to characterize lithium enolates,N,N,N-tetramethylethylenediamine and cubic tetramers in tetrahydrofuran and 1,2-dimethoxyethane. Introduction Lithium enolates are used

  12. Lithium Phenolates Solvated by Tetrahydrofuran and 1,2-Dimethoxyethane: Structure Determination Using the

    E-Print Network [OSTI]

    Collum, David B.

    Lithium Phenolates Solvated by Tetrahydrofuran and 1,2-Dimethoxyethane: Structure Determination: The method of continuous variation in conjunction with 6 Li NMR spectroscopy was used to characterize lithium substrate- and solvent-dependent combinations of lithium phenolate monomers, dimers, trimers, tetramers

  13. Lipid Bilayer Structure Determined by the Simultaneous Analysis of Neutron and X-Ray Scattering Data

    E-Print Network [OSTI]

    Nagle, John F.

    Lipid Bilayer Structure Determined by the Simultaneous Analysis of Neutron and X-Ray Scattering) and dipalmitoylphosphatidylcholine (DPPC) bilayers by simultaneously analyzing x-ray and neutron scattering data. The neutron data electron and neutron scattering density profiles. A key result of the analysis is the molecular surface

  14. Charge states rather than propensity for -structure determine enhanced fibrillogenesis in wild-type

    E-Print Network [OSTI]

    Straub, John E.

    Charge states rather than propensity for -structure determine enhanced fibrillogenesis in wild -peptide relative to that of the wild-type peptide has been observed. The increased activity has been; Watson et al. 1999; Esler et al. 2000a). Two particular natu- rally occurring mutant forms of the wild

  15. New rest wavelength determinations for 7 mid-infrared fine structure lines by ISO-SWS

    E-Print Network [OSTI]

    H. Feuchtgruber; D. Lutz; D. A. Beintema

    2001-05-15T23:59:59.000Z

    Observations of the planetary nebulae NGC6302, NGC6543 and NGC7027 by the Short Wavelength Spectrometer (SWS) on board the Infrared Space Observatory (ISO) have been used to determine rest wavelengths of spectral lines. We report on improved accuracies for wavelengths of 7 mid-infrared ionic fine structure lines.

  16. Equilibration of experimentally determined protein structures for molecular dynamics simulation Emily B. Walton and Krystyn J. VanVliet*

    E-Print Network [OSTI]

    Van Vliet, Krystyn J.

    Equilibration of experimentally determined protein structures for molecular dynamics simulation well studied, ranging from refinements of static x-ray crystallog- raphy structures to dynamic Preceding molecular dynamics simulations of biomolecular interactions, the molecule of interest is often

  17. Computational tools for experimental determination and theoretical prediction of protein structure

    SciTech Connect (OSTI)

    O`Donoghue, S.; Rost, B.

    1995-12-31T23:59:59.000Z

    This tutorial was one of eight tutorials selected to be presented at the Third International Conference on Intelligent Systems for Molecular Biology which was held in the United Kingdom from July 16 to 19, 1995. The authors intend to review the state of the art in the experimental determination of protein 3D structure (focus on nuclear magnetic resonance), and in the theoretical prediction of protein function and of protein structure in 1D, 2D and 3D from sequence. All the atomic resolution structures determined so far have been derived from either X-ray crystallography (the majority so far) or Nuclear Magnetic Resonance (NMR) Spectroscopy (becoming increasingly more important). The authors briefly describe the physical methods behind both of these techniques; the major computational methods involved will be covered in some detail. They highlight parallels and differences between the methods, and also the current limitations. Special emphasis will be given to techniques which have application to ab initio structure prediction. Large scale sequencing techniques increase the gap between the number of known proteins sequences and that of known protein structures. They describe the scope and principles of methods that contribute successfully to closing that gap. Emphasis will be given on the specification of adequate testing procedures to validate such methods.

  18. Determination of the paradihlorobenzene and paradibromobenzene solid solutions nanoparticles structure via Raman spectra

    E-Print Network [OSTI]

    Korshunov, M A

    2012-01-01T23:59:59.000Z

    We measured the small frequencies Raman spectrum of the paradihlorobenzene and paradihlorobenzene solid solution nanoparticles with the size about 100 nanometers. Values of frequencies of lines decrease. The size of nanoparticles was determined by the electronic microscope. Calculations of nanoparticles structure were done using the method of molecular dynamics and histograms of nanoparticles spectra were calculated via the Dyne's method. The result is that the Raman spectrum is the sum of spectra from the central part of the nanoparticle and superficial structures with smaller concentration of paradihlorobenzene.

  19. Determination

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville Power AdministrationField Campaign: Potential Application to ARM MeasurementsDetermination of

  20. Structure of CPV17 polyhedrin determined by the improved analysis of serial femtosecond crystallographic data

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

    Ginn, Helen M.; Messerschmidt, Marc; Ji, Xiaoyun; Zhang, Hanwen; Axford, Danny; Gildea, Richard J.; Winter, Graeme; Brewster, Aaron S.; Hattne, Johan; Wagner, Armin; et al

    2015-03-09T23:59:59.000Z

    The X-ray free-electron laser (XFEL) allows the analysis of small weakly diffracting protein crystals, but has required very many crystals to obtain good data. Here we use an XFEL to determine the room temperature atomic structure for the smallest cytoplasmic polyhedrosis virus polyhedra yet characterized, which we failed to solve at a synchrotron. These protein microcrystals, roughly a micron across, accrue within infected cells. We use a new physical model for XFEL diffraction, which better estimates the experimental signal, delivering a high-resolution XFEL structure (1.75 Å), using fewer crystals than previously required for this resolution. The crystal lattice and proteinmore »core are conserved compared with a ?polyhedrin with less than 10% sequence identity. We explain how the conserved biological phenotype, the crystal lattice, is maintained in the face of extreme environmental challenge and massive evolutionary divergence. Our improved methods should open up more challenging biological samples to XFEL analysis.« less

  1. Experimental level-structure determination in odd-odd actinide nuclei

    SciTech Connect (OSTI)

    Hoff, R.W.

    1985-04-04T23:59:59.000Z

    The status of experimental determination of level structure in odd-odd actinide nuclei is reviewed. A technique for modeling quasiparticle excitation energies and rotational parameters in odd-odd deformed nuclei is applied to actinide species where new experimental data have been obtained by use of neutron-capture gamma-ray spectroscopy. The input parameters required for the calculation are derived from empirical data on single-particle excitations in neighboring odd-mass nuclei. Calculated configuration-specific values for the Gallagher-Moszkowski splittings are used. Calculated and experimental level structures for /sup 238/Np, /sup 244/Am, and /sup 250/Bk are compared, as well as those for several nuclei in the rare-earth region. The agreement for the actinide species is excellent, with bandhead energies deviating 22 keV and rotational parameters 5%, on the average. Applications of this modeling technique are discussed.

  2. Site specific incorporation of heavy atom-containing unnatural amino acids into proteins for structure determination

    DOE Patents [OSTI]

    Xie, Jianming (San Diego, CA); Wang, Lei (San Diego, CA); Wu, Ning (Boston, MA); Schultz, Peter G. (La Jolla, CA)

    2008-07-15T23:59:59.000Z

    Translation systems and other compositions including orthogonal aminoacyl tRNA-synthetases that preferentially charge an orthogonal tRNA with an iodinated or brominated amino acid are provided. Nucleic acids encoding such synthetases are also described, as are methods and kits for producing proteins including heavy atom-containing amino acids, e.g., brominated or iodinated amino acids. Methods of determining the structure of a protein, e.g., a protein into which a heavy atom has been site-specifically incorporated through use of an orthogonal tRNA/aminoacyl tRNA-synthetase pair, are also described.

  3. Structure determination of {alpha}-La{sub 6}W{sub 2}O{sub 15}

    SciTech Connect (OSTI)

    Chambrier, M-H., E-mail: marie-helene.chambier.etu@univ-lemans.f [Laboratoire des Oxydes et Fluorures, UMR-CNRS 6010, Universite du Maine, 72085 Le Mans Cedex 9 (France); Ibberson, R.M. [ISIS Facility, STFC-Rutherford Appleton Laboratory, Harwell Science and Innovation Campus, Didcot OX11 0QX (United Kingdom); Goutenoire, F., E-mail: francois.goutenoire@univ-lemans.f [Laboratoire des Oxydes et Fluorures, UMR-CNRS 6010, Universite du Maine, 72085 Le Mans Cedex 9 (France)

    2010-06-15T23:59:59.000Z

    The structure of the high temperature alpha form of La{sub 6}W{sub 2}O{sub 15} has been determined ab-initio from high temperature laboratory X-ray and neutron time-of-flight data. This tungstate crystallizes in the non-centrosymmetric orthorhombic space group (No. 20) C222{sub 1}, with Z=2, a=12.6250(2) A, b=9.1875(1) A, c=5.9688(1) A. The structure comprises [O{sub 2}La{sub 3}] infinite ribbons and is better described by the structural formula [O{sub 2}La{sub 3}]{sub 2}[WO{sub 5.5}]{sub 2}. Using this description we can understand the strong structural similarity of the present compound with compounds of the general composition BiM{sub 2}AO{sub 6} (M=Cu, Mg, Zn, Mn, Cd, Ca, Pb; A=P, As, V) described as [O{sub 2}M{sub 2}Bi][AO{sub 4}]. The [WO{sub 5.5}] entity implies oxygen disorder in the material. - Graphical abstract: Projection of the polyhedra around the tungsten atom. Atoms labelled in grey are occupied at 50%. Short oxygen-oxygen distances are marked. The polyhedra represents WO{sub 5.5} that is related to the structural unit W{sub 2}O{sub 11} unit. Alpha-La{sub 6}W{sub 2}O{sub 15} could be described as [O{sub 2}La{sub 3}]{sub 2}[WO{sub 5.5}]{sub 2}.

  4. Dynamical Energy Analysis - determining wave energy distributions in complex vibro-acoustical structures

    E-Print Network [OSTI]

    Gregor Tanner

    2008-03-12T23:59:59.000Z

    We propose a new approach towards determining the distribution of mechanical and acoustic wave energy in complex built-up structures. The technique interpolates between standard Statistical Energy Analysis (SEA) and full ray tracing containing both these methods as limiting case. By writing the flow of ray trajectories in terms of linear phase space operators, it is suggested here to reformulate ray-tracing algorithms in terms of boundary operators containing only short ray segments. SEA can now be identified as a low resolution ray tracing algorithm and typical SEA assumptions can be quantified in terms of the properties of the ray dynamics. The new technique presented here enhances the range of applicability of standard SEA considerably by systematically incorporating dynamical correlations wherever necessary. Some of the inefficiencies inherent in typical ray tracing methods can be avoided using only a limited amount of the geometrical ray information. The new dynamical theory - Dynamical Energy Analysis (DEA) - thus provides a universal approach towards determining wave energy distributions in complex structures.

  5. Solid state nuclear magnetic resonance methodology and applications to structure determination of peptides, proteins and amyloid fibrils

    E-Print Network [OSTI]

    Jaroniec, Christopher P

    2003-01-01T23:59:59.000Z

    Several methodological developments and applications of multidimensional solid-state nuclear magnetic resonance to biomolecular structure determination are presented. Studies are performed in uniformly 3C, 15N isotope ...

  6. Improving the chances of successful protein structure determination with a random forest classifier

    SciTech Connect (OSTI)

    Jahandideh, Samad [Sanford-Burnham Medical Research Institute, 10901 North Torrey Pines Road, La Jolla, CA 92307 (United States); Joint Center for Structural Genomics, (United States); Jaroszewski, Lukasz; Godzik, Adam, E-mail: adam@burnham.org [Sanford-Burnham Medical Research Institute, 10901 North Torrey Pines Road, La Jolla, CA 92307 (United States); Joint Center for Structural Genomics, (United States); University of California, San Diego, La Jolla, California (United States)

    2014-03-01T23:59:59.000Z

    Using an extended set of protein features calculated separately for protein surface and interior, a new version of XtalPred based on a random forest classifier achieves a significant improvement in predicting the success of structure determination from the primary amino-acid sequence. Obtaining diffraction quality crystals remains one of the major bottlenecks in structural biology. The ability to predict the chances of crystallization from the amino-acid sequence of the protein can, at least partly, address this problem by allowing a crystallographer to select homologs that are more likely to succeed and/or to modify the sequence of the target to avoid features that are detrimental to successful crystallization. In 2007, the now widely used XtalPred algorithm [Slabinski et al. (2007 ?), Protein Sci.16, 2472–2482] was developed. XtalPred classifies proteins into five ‘crystallization classes’ based on a simple statistical analysis of the physicochemical features of a protein. Here, towards the same goal, advanced machine-learning methods are applied and, in addition, the predictive potential of additional protein features such as predicted surface ruggedness, hydrophobicity, side-chain entropy of surface residues and amino-acid composition of the predicted protein surface are tested. The new XtalPred-RF (random forest) achieves significant improvement of the prediction of crystallization success over the original XtalPred. To illustrate this, XtalPred-RF was tested by revisiting target selection from 271 Pfam families targeted by the Joint Center for Structural Genomics (JCSG) in PSI-2, and it was estimated that the number of targets entered into the protein-production and crystallization pipeline could have been reduced by 30% without lowering the number of families for which the first structures were solved. The prediction improvement depends on the subset of targets used as a testing set and reaches 100% (i.e. twofold) for the top class of predicted targets.

  7. Method of determining the extent to which a nickel structure has been attached by a fluorine-containing gas

    DOE Patents [OSTI]

    Brusie, James P. (Oak Ridge, TN)

    2004-07-13T23:59:59.000Z

    The method of determining the extent to which a nickel structure has been attacked by a halogen containing gas to which it has been exposed which comprises preparing a quantity of water substantially free from dissolved oxygen, passing ammonia gas through a cuprammonium solution to produce ammonia substantially free from oxygen, dissolving said oxygen-free ammonia in said water to produce a saturated aqueous ammonia solution free from uncombined oxygen, treating at least a portion of said nickel structure of predetermined weight with said solution to dissolve nickel compounds from the surface of said structure without dissolving an appreciable amount of said nickel and analyzing the resulting solution to determine the quantity of said nickel compounds that was associated with said said portion of said structure to determine the proportion of combined nickel in said nickel structure.

  8. Method of Determining the Extent to which a Nickel Structure has been Attached by a Fluorine-Containing Gas

    DOE Patents [OSTI]

    Brusie, James P.

    2004-07-13T23:59:59.000Z

    The method of determining the extent to which a nickel structure has been attacked by a halogen containing gas to which it has been exposed which comprises preparing a quantity of water substantially free from dissolved oxygen, passing ammonia gas through a cuprammonium solution to produce ammonia substantially free from oxygen, dissolving said oxygen-free ammonia in said water to produce a saturated aqueous ammonia solution free from uncombined oxygen, treating at least a portion of said nickel structure of predetermined weight with said solution to dissolve nickel compounds from the surface of said structure without dissolving an appreciable amount of said nickel and analyzing the resulting solution to determine the quantity of said nickel compounds that was associated with said said portion of said structure to determine the proportion of combined nickel in said nickel structure.

  9. Synthesis, growth, structure determination and optical properties of chalcone derivative single crystal

    SciTech Connect (OSTI)

    Karthi, S., E-mail: girijaeaswaradas@gmail.com; Girija, E. K., E-mail: girijaeaswaradas@gmail.com [Department of Physics, Periyar University, Salem - 636011 (India)

    2014-04-24T23:59:59.000Z

    Acquiring large nonlinear optical (NLO) efficient organic material is essential for the development of optoelectronics and photonic devices. Chalcone is the donor - ? - acceptor - ? - donor (D-?-A-?-D) type conjugated molecule with appreciable hyperpolarizability of potential interest in NLO applications. The addition of vinyl and electron donor groups in the chalcone molecule may enhance the second harmonic generation (SHG) efficiency. Here we report the synthesis, crystal growth and characterization of a chalcone derivative 1-(4-methylphenyl)-5-(4-methoxyphenyl)-penta-2,4-dien-1-one (MPMPP). The MPMPP crystal was grown by slow evaporation solution growth technique from acetone. The grown crystal structure was studied by single crystal X-ray diffraction. The SHG efficiency of the grown crystal was determined by Kurtz and Perry method.

  10. Phase 1. Screening guidelines to determine the structures exempt from Executive Order 12941

    SciTech Connect (OSTI)

    NONE

    1995-09-01T23:59:59.000Z

    This report presents data regarding the guidelines for determining structures that are exempt from executive order 12941. Executive order 12941 was enacted to assure seismic safety of existing federally owned or leased buildings. This reports considered only the minimum amount of information. This information varied from building to building and from site to site. The scope of the guidelines is to cover all five DOE sites that fall under the DOE Oak Ridge Operations and are operated by LMES. These facilities are the ORNL, Y-12 Plant, K-25 Site all at Oak Ridge, Tennessee; the Paducah Gaseous Diffusion Plant, Paducah, Kentucky; and the Portsmouth Gaseous Diffusion Plant, Portsmouth, Ohio. Off site facilities, owned or leased, that are occupied by LMES are also included.

  11. Structure Determination and Functional Analysis of a Chromate Reductase from Gluconacetobacter hansenii

    SciTech Connect (OSTI)

    Jin, Hongjun; Zhang, Yanfeng; Buchko, Garry W.; Varnum, Susan M.; Robinson, Howard; Squier, Thomas C.; Long, Philip E.

    2012-08-06T23:59:59.000Z

    Environmental protection through biological mechanisms that aid in the reductive immobilization of toxic metals (e.g.,chromate and uranyl) has been identified to involve specific NADH-dependent flavoproteins that promote cell viability. To understand the enzyme mechanisms responsible for metal reduction, the enzyme kinetics of a putative chromate reductasefrom Gluconacetobacter hansenii (Gh-ChrR) was measured and the crystal structure of the protein determined at 2.25 A°resolution. Gh-ChrR catalyzes the NADH-dependent reduction of chromate, ferricyanide, and uranyl anions under aerobic conditions. Kinetic measurements indicate that NADH acts as a substrate inhibitor; catalysis requires chromate binding prior to NADH association. The crystal structure of Gh-ChrR shows the protein is a homotetramer with one bound flavin mononucleotide (FMN) per subunit. A bound anion is visualized proximal to the FMN at the interface between adjacentsubunits within a cationic pocket, which is positioned at an optimal distance for hydride transfer. Site-directed substitutions of residues proposed to involve in both NADH and metal anion binding (N85A or R101A) result in 90–95% reductions in enzyme efficiencies for NADH-dependent chromate reduction. In comparison site-directed substitution of a residue (S118A) participating in the coordination of FMN in the active site results in only modest (50%) reductions in catalytic efficiencies, consistent with the presence of a multitude of side chains that position the FMN in the active site. The proposed proximity relationships between metal anion binding site and enzyme cofactors is discussed in terms of rational design principles for the use of enzymes in chromate and uranyl bioremediation.

  12. Synthesis and Structure Determination of Ferromagnetic Semiconductors LaAMnSnO6 (A = Sr Ba)

    SciTech Connect (OSTI)

    T Yang; T Perkisas; J Hadermann; M Croft; A Ignatov; M Greenblatt

    2011-12-31T23:59:59.000Z

    LaAMnSnO{sub 6} (A = Sr, Ba) have been synthesized by high temperature solid-state reactions under dynamic 1% H{sub 2}/Ar flow. Rietveld refinements on room temperature powder X-ray diffraction data indicate that LaSrMnSnO{sub 6} crystallizes in the GdFeO{sub 3}-structure, with space group Pnma and, combined with transmission electron microscopy, LaBaMnSnO{sub 6} in Imma. Both space groups are common in disordered double-perovskites. The Mn{sup 3+} and Sn{sup 4+} ions whose valence states were confirmed by X-ray absorption spectroscopy, are completely disordered over the B-sites and the BO{sub 6} octahedra are slightly distorted. LaAMnSnO{sub 6} are ferromagnetic semiconductors with a T{sub C} = 83 K for the Sr- and 66 K for the Ba-compound. The title compounds, together with the previously reported LaCaMnSnO{sub 6} provide an interesting example of progression from Pnma to Imma as the tolerance factor increases. An analysis of the relationship between space group and tolerance factor for the series LaAMnMO{sub 6} (A = Ca, Sr, Ba; M = Sn, Ru) provides a better understanding of the symmetry determination for double perovskites.

  13. Nanoscale structure in AgSbTe2 determined by diffuse elastic neutron scattering

    SciTech Connect (OSTI)

    Specht, Eliot D [ORNL; Ma, Jie [ORNL; Delaire, Olivier A [ORNL; Budai, John D [ORNL; May, Andrew F [ORNL; Karapetrova, Evguenia A. [Argonne National Laboratory (ANL)

    2015-01-01T23:59:59.000Z

    Diffuse elastic neutron scattering measurements confirm that AgSbTe2 has a hierarchical structure, with defects on length scales from nanometers to microns. While scattering from mesoscale structure is consistent with previously-proposed structures in which Ag and Sb order on a NaCl lattice, more diffuse scattering from nanoscale structure suggests a structural rearrangement in which hexagonal layers form a combination of (ABC), (ABA), and (AAB) stacking sequences. The AgCrSe2 structure is the best-fitting model for the local atomic arrangements.

  14. Stiffness-Mass Ratios Method for a baseline determination and damage assessment of a benchmark structure

    E-Print Network [OSTI]

    Rocha, Ramses Rodriguez

    2002-01-01T23:59:59.000Z

    A new method based on ratios between stiffness and mass values from the eigenvalue problem is introduced and applied to the benchmark structure to obtain baseline modal parameters utilizing damaged state information of the structure. The benchmark...

  15. Using a structural and logics systems approach to infer bHLH–DNA binding specificity determinants

    E-Print Network [OSTI]

    Masi, Federico De

    Numerous efforts are underway to determine gene regulatory networks that describe physical relationships between transcription factors (TFs) and their target DNA sequences. Members of paralogous TF families typically ...

  16. Facilitation of protein 3-D structure determination using enhanced peptide amide deuterium exchange mass spectrometry (DXMS)

    E-Print Network [OSTI]

    Pantazatos, Dennis Peter

    2006-01-01T23:59:59.000Z

    hydrophobic interaction in protein folding. Proc Natl Acad1999;28:1-27. 15. Protein Folding, Dynamics, and StructuralHydrogen exchange and protein folding. Curr. Opin. Struct.

  17. UV Resonance Raman-Selective Amide Vibrational Enhancement: Quantitative Methodology for Determining Protein Secondary Structure

    E-Print Network [OSTI]

    Asher, Sanford A.

    UV Resonance Raman-Selective Amide Vibrational Enhancement: Quantitative Methodology secondary structures, using UV resonance Raman spectroscopy (UVRRS) excited with a 206.5-nm CW laser changes in secondary structure in the protein, such as R-helix melting, while changes in the aromatic

  18. Ab-Initio Determination of Novel Crystal Structures of the Thermoelectric Material MgAgSb

    SciTech Connect (OSTI)

    Kirkham, Melanie J [ORNL; Moreira Dos Santos, Antonio F [ORNL; Rawn, Claudia J [ORNL; Lara-Curzio, Edgar [ORNL; Sharp, Jeff W. [Marlow Industries, Inc; Thompson, Alan [Marlow Industries, Inc

    2012-01-01T23:59:59.000Z

    Materials with the half-Heusler structure possess interesting electrical and magnetic properties, including potential for thermoelectric applications. MgAgSb is compositionally and structurally related to many half-Heusler materials, but has not been extensively studied. This work presents the high-temperature X-ray diffraction analysis of MgAgSb between 27 and 420 C, complemented with thermoelectric property measurements. MgAgSb is found to exist in three different structures in this temperature region, taking the half-Heusler structure at high temperatures, a Cu2Sb-related structure at intermediate temperatures, and a previously unreported tetragonal structure at room temperature. All three structures are related by a distorted Mg-Sb rocksalt-type sublattice, differing primarily in the Ag location among the available tetrahedral sites. Transition temperatures between the three phases correlate well with discontinuities in the Seebeck coefficient and electrical conductivity; the best performance occurs with the novel room temperature phase. For application of MgAgSb as a thermoelectric material, it may be desirable to develop methods to stabilize the room temperature phase at higher temperatures.

  19. Thermal neutron diffraction determination of the magnetic structure of EuCu{sub 2}Ge{sub 2}

    SciTech Connect (OSTI)

    Rowan-Weetaluktuk, W. N.; Ryan, D. H., E-mail: dhryan@physics.mcgill.ca [Department of Physics, and Centre for the Physics of Materials, McGill University, 3600 University Street, Montreal, Quebec H3A 2T8 (Canada); Lemoine, P. [Laboratoire CRISMAT, ENSICAEN, UMR 6508 CNRS, 6 Boulevard du Maréchal Juin, 14050 Caen Cedex 4 (France); Cadogan, J. M. [School of Physical, Environmental and Mathematical Sciences, UNSW Canberra at the Australian Defence Force Academy, Canberra BC 2610 (Australia)

    2014-05-07T23:59:59.000Z

    The magnetic structure of EuCu{sub 2}Ge{sub 2} has been determined by flat-plate neutron powder diffraction. Two magnetic phases are present in the neutron diffraction pattern at 3.5?K. They have the same moment, within error, and a common transition temperature. Both {sup 151}Eu and {sup 153}Eu Mössbauer spectroscopy show that the two magnetic phases belong to the same crystallographic phase. Both phases can be modelled by planar helimagnetic structures: one with a propagation vector of [0.654(1), 0, 0], the other with a propagation vector of [0.410(1), 0.225(1), 0].

  20. Biochemical Characterization and Structure Determination of a Prolyl 4-Hydroxylase-like Protein from Bacillus anthracis

    E-Print Network [OSTI]

    Culpepper, Megen

    2009-06-05T23:59:59.000Z

    provides insight into the dimeric structure of the alpha-subunits of human-P4H-1, as well as to help understand the mode of substrate recognition that may aide in the development of selective inhibitors....

  1. Development of new parameters for structure determination and dynamic investigations on biomacromolecules by NMR

    E-Print Network [OSTI]

    Duchardt, Elke, 1975-

    2005-01-01T23:59:59.000Z

    Nuclear magnetic resonance (NMR) spectroscopy is unique in the content of structural as well as dynamic information that it can provide at atomic resolution. The aim of this PhD-thesis was to contribute to the understanding ...

  2. Determining soft segment structure-property effects in the enhancement of segmented polyurethane performance

    E-Print Network [OSTI]

    Waletzko, Ryan Scott

    2009-01-01T23:59:59.000Z

    Liquid Crystalline Elastomer (LCE)-inspired segmented polyurethane elastomers possessing widely different extents of ordering were created to mimic the hierarchical structure of the continuous matrix and superior mechanical ...

  3. Structural determinants for the inhibitory ligands of orotidine-5?-monophosphate decarboxylase

    SciTech Connect (OSTI)

    Meza-Avina, Maria Elena; Wei, Lianhu; Liu, Yan; Poduch, Ewa; Bello, Angelica M.; Mishra, Ram K.; Pai, Emil F.; Kotra, Lakshmi P. (TGRI); (Toronto)

    2010-06-14T23:59:59.000Z

    In recent years, orotidine-5{prime}-monophosphate decarboxylase (ODCase) has gained renewed attention as a drug target. As a part of continuing efforts to design novel inhibitors of ODCase, we undertook a comprehensive study of potent, structurally diverse ligands of ODCase and analyzed their structural interactions in the active site of ODCase. These ligands comprise of pyrazole or pyrimidine nucleotides including the mononucleotide derivatives of pyrazofurin, barbiturate ribonucleoside, and 5-cyanouridine, as well as, in a computational approach, 1,4-dihydropyridine-based non-nucleoside inhibitors such as nifedipine and nimodipine. All these ligands bind in the active site of ODCase exhibiting distinct interactions paving the way to design novel inhibitors against this interesting enzyme. We propose an empirical model for the ligand structure for rational modifications in new drug design and potentially new lead structures.

  4. Selectively dispersed isotope labeling for protein structure determination by magic angle spinning NMR

    E-Print Network [OSTI]

    Eddy, Matthew T.

    The power of nuclear magnetic resonance spectroscopy derives from its site-specific access to chemical, structural and dynamic information. However, the corresponding multiplicity of interactions can be difficult to tease ...

  5. Structure determination of the high-pressure phase of CdSe

    SciTech Connect (OSTI)

    Li, Yanchun, E-mail: liyc@ihep.ac.cn, E-mail: liuj@ihep.ac.cn; Lin, Chuanlong; Li, Xiaodong; Liu, Jing, E-mail: liyc@ihep.ac.cn, E-mail: liuj@ihep.ac.cn [Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Science, 100049 Beijing (China); Li, Gong [State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004 (China); Xu, Jian [Institute of Fluid Physics, China Academy of Engineering Physics, P. O. Box 919-102, Mianyang, Sichuan 621900 (China)

    2014-06-14T23:59:59.000Z

    Structural phase transition sequence of CdSe has been investigated at pressures up to 60?GPa under quasi-hydrostatic conditions using synchrotron X-ray diffraction. A phase transition from the wurtzite type (B4) to the NaCl-type (B1) structure has been observed, followed by another phase transition to an orthorhombic structure at 27?GPa, in agreement with previous reports. We show that this high-pressure orthorhombic phase has a Pnma symmetry rather than being a Cmcm-symmetric structure as previously suggested. From our observations, the appearance of the new reflections and reflection splitting with increasing pressure is due to the change of atomic relative positions in crystal lattice and the difference in the compression ratio of lattice parameters for the Pnma structure, and we find no evidence for the third phase transition reported previously. The pressure-induced phase transition of CdSe has been further confirmed by the density-functional theory calculations.

  6. Structural changes in block copolymer solution under shear flow as determined by nonequilibrium molecular dynamics

    E-Print Network [OSTI]

    Igor Rychkov; Kenichi Yoshikawa

    2003-10-06T23:59:59.000Z

    A nonequilibrium molecular dynamics computer simulation on microsegregated solutions of symmetrical diblock copolymers is reported. As the polymer concentration increases, the system undergoes phase transitions in the following order: body centered cubic (BCC) micelles, hexagonal (HEX) cylinders, gyroid (GYR) bicontinuous networks, and lamellae (L), which are the same morphologies that have been reported for block copolymer melts. Structural classification is based on the patterns of the anisotropic static structure factor and characteristic 3-dimensional images. The systems in the BCC micellar ($\\rho\\sigma^{3}=0.3$) and HEX cylindrical ($\\rho\\sigma^{3}=0.4$) phases were then subjected to a steady planar shear flow. In weak shear flow, the segregated domains in both systems tend to rearrange into sliding parallel close-packed layers with their normal in the direction of the shear gradient. At higher shear rates both systems adopt a perpendicular lamellar structure with the normal along the neutral direction. A further increase in the shear rate results in a decrease in lamellar spacing without any further structural transitions. Two critical shear rate values that correspond to the demarcation of different structural behaviors were found.

  7. Nonlinear optics determination of the symmetry group of a crystal using structured light

    E-Print Network [OSTI]

    Jauregui, Rocio

    2015-01-01T23:59:59.000Z

    We put forward a technique to unveil to which symmetry group a nonlinear crystal belongs, making use of nonlinear optics with structured light. We consider as example the process of spontaneous parametric down-conversion. The crystal, which is illuminated with a special type of Bessel beam, is characterized by a nonlinear susceptibility tensor whose structure is dictated by the symmetry group of the crystal. The observation of the spatial angular dependence of the lower-frequency generated light provides direct information about the symmetry group of the crystal.

  8. Using computerized tomography to determine ionospheric structures. Part 1, Notivation and basic approaches

    SciTech Connect (OSTI)

    Vittitoe, C.N.

    1993-08-01T23:59:59.000Z

    Properties of the ionosphere are reviewed along with its correlations with other geophysical phenomena and with applications of ionospheric studies to communication, navigation, and surveillance systems. Computer tomography is identified as a method to determine the detailed, three-dimensional distribution of electron density within the ionosphere. Several tomography methods are described, with a basic approach illustrated by an example. Limitations are identified.

  9. SUPPLEMENTARY MATERIAL Lipid bilayer structure determined by the simultaneous analysis of neutron

    E-Print Network [OSTI]

    Nagle, John F.

    scattering intensities I(q) for both neutrons and x-rays using )()()()( qPqPqIqF TSLC= , (1.) where PLC in structure between oriented and spherical bilayers experimentally using both neutron and x-ray scattering in (2). Our study concluded no difference between the two for x-ray and neutron scattering data

  10. A Microfluidic Device for Kinetic Optimization of Protein Crystallization and In Situ Structure Determination

    E-Print Network [OSTI]

    Quake, Stephen R.

    A Microfluidic Device for Kinetic Optimization of Protein Crystallization and In Situ Structure Received November 10, 2005; E-mail: quake@stanford.edu Recently microfluidic technologies have emerged microfluidic crystallization devices do not allow the post- crystallization addition of cryoprotectant

  11. Device and nondestructive method to determine subsurface micro-structure in dense materials

    DOE Patents [OSTI]

    Sun, Jiangang (Westmont, IL)

    2006-05-09T23:59:59.000Z

    A method and a device to detect subsurface three-dimensional micro-structure in a sample by illuminating the sample with light of a given polarization and detecting light emanating from the sample that has a different direction of polarization by means of a confocal optical system.

  12. DETERMINING THE EFFECTS OF RADIATION ON AGING CONCRETE STRUCTURES OF NUCLEAR REACTORS

    SciTech Connect (OSTI)

    Serrato, M.

    2010-01-29T23:59:59.000Z

    The U.S. Department of Energy Office of Environmental Management (DOE-EM) is responsible for the Decontamination and Decommissioning (D&D) of nuclear facilities throughout the DOE Complex. Some of these facilities will be completely dismantled, while others will be partially dismantled and the remaining structure will be stabilized with cementitious fill materials. The latter is a process known as In-Situ Decommissioning (ISD). The ISD decision process requires a detailed understanding of the existing facility conditions, and operational history. System information and material properties are need for aged nuclear facilities. This literature review investigated the properties of aged concrete structures affected by radiation. In particular, this review addresses the Savannah River Site (SRS) isotope production nuclear reactors. The concrete in the reactors at SRS was not seriously damaged by the levels of radiation exposure. Loss of composite compressive strength was the most common effect of radiation induced damage documented at nuclear power plants.

  13. Pore-structure determinations of silica aerogels by {sup 129}Xe NMR spectroscopy and imaging.

    SciTech Connect (OSTI)

    Gregory, D. M.; Gerald, R. E., II; Botto, R. E.; Chemistry

    1998-04-01T23:59:59.000Z

    Silica aerogels represent a new class of open-pore materials with pore dimensions on a scale of tens of nanometers, and are thus classified as mesoporous materials. In this work, we show that the combination of NMR spectroscopy and chemical-shift selective magnetic resonance imaging (MRI) can resolve some of the important aspects of the structure of silica aerogels. The use of xenon as a gaseous probe in combination with spatially resolved NMR techniques is demonstrated to be a powerful, new approach for characterizing the average pore structure and steady-state spatial distributions of xenon atoms in different physicochemical environments. Furthermore, dynamic NMR magnetization transfer experiments and pulsed-field gradient (PFG) measurements have been used to characterize exchange processes and diffusive motion of xenon in samples at equilibrium. In particular, this new NMR approach offers unique information and insights into the nanoscopic pore structure and microscopic morphology of aerogels and the dynamical behavior of occluded adsorbates. MRI provides spatially resolved information on the nature of the flaw regions found in these materials. Pseudo-first-order rate constants for magnetization transfer among the bulk and occluded xenon phases indicate xenon-exchange rate constants on the order of 1 s-1 for specimens having volumes of 0.03 cm3. PFG diffusion measurements show evidence of anisotropic diffusion for xenon occluded within aerogels, with nominal self-diffusivity coefficients on the order of D= 10-3cm2/s.

  14. Atmospheric structure and variability in areas of convective storms determined from 3-h rawinsonde data

    E-Print Network [OSTI]

    Wilson, Gregory Sims

    1975-01-01T23:59:59.000Z

    (1974) indicates RMS vector errors in wind speed for the AVE II data as follows: Level Elevation An le 700 mb 500 mb 300 Htb 40' 0. 5 m s 0. 8 m s " 1. 0ms 10' -1 2. 5ms -1 4. 5 ms 7. 8 m s 'ihese RNS errors agree closely with those.... , Texas A&M University Chairman of Advisory Committee: Dr. James R. Scoggins The structure and variability of the atmosphere in areas of radar- observed convection is established by using the unique 3-h rawinsonde and surface data from NASA's second...

  15. Standard Practice for Determining NeutronExposures for Nuclear Reactor Vessel Support Structures

    E-Print Network [OSTI]

    American Society for Testing and Materials. Philadelphia

    2008-01-01T23:59:59.000Z

    1.1 This practice covers procedures for monitoring the neutron radiation exposures experienced by ferritic materials in nuclear reactor vessel support structures located in the vicinity of the active core. This practice includes guidelines for: 1.1.1 Selecting appropriate dosimetric sensor sets and their proper installation in reactor cavities. 1.1.2 Making appropriate neutronics calculations to predict neutron radiation exposures. 1.2 This practice is applicable to all pressurized water reactors whose vessel supports will experience a lifetime neutron fluence (E > 1 MeV) that exceeds 1 × 1017 neutrons/cm2 or 3.0 × 10?4 dpa. (See Terminology E 170.) 1.3 Exposure of vessel support structures by gamma radiation is not included in the scope of this practice, but see the brief discussion of this issue in 3.2. 1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and h...

  16. Low Resolution Structure and Dynamics of a Colicin-Receptor Complex Determined by Neutron Scattering

    SciTech Connect (OSTI)

    Clifton, Luke A [ORNL; Johnson, Christopher L [ORNL; Solovyova, Alexandra [University of Newcastle upon Tyne; Callow, Phil [Institut Laue-Langevin (ILL); Weiss, Kevin L [ORNL; Ridley, Helen [University of Newcastle upon Tyne; Le Brun, Anton P [ORNL; Kinane, Christian [ISIS Facility, Rutherford Appleton Laboratory; Webster, John [ISIS Facility, Rutherford Appleton Laboratory; Holt, Stephen A [ORNL; Lakey, Jeremy H [ORNL

    2012-01-01T23:59:59.000Z

    Proteins that translocate across cell membranes need to overcome a significant hydrophobic barrier. This is usually accomplished via specialized protein complexes, which provide a polar transmembrane pore. Exceptions to this include bacterial toxins, which insert into and cross the lipid bilayer itself. We are studying the mechanism by which large antibacterial proteins enter Escherichia coli via specific outer membrane proteins. Here we describe the use of neutron scattering to investigate the interaction of colicin N with its outer membrane receptor protein OmpF. The positions of lipids, colicin N, and OmpF were separately resolved within complex structures by the use of selective deuteration. Neutron reflectivity showed, in real time, that OmpF mediates the insertion of colicin N into lipid monolayers. This data were complemented by Brewster Angle Microscopy images, which showed a lateral association of OmpF in the presence of colicin N. Small angle neutron scattering experiments then defined the three-dimensional structure of the colicin N-OmpF complex. This revealed that colicin N unfolds and binds to the OmpF-lipid interface. The implications of this unfolding step for colicin translocation across membranes are discussed.

  17. Activation and micropore structure determination of activated carbon-fiber composites

    SciTech Connect (OSTI)

    Jagtoyen, M.; Derbyshire, F.; Kimber, G. [Univ. of Kentucky, Lexington, KY (United States). Center for Applied Energy Research

    1997-09-05T23:59:59.000Z

    Rigid, high surface area activated carbon fiber composites have been produced with high permeabilities for environmental applications in gas and water purification. These novel monolithic adsorbents can be produced in single pieces to a given size and shape. The project involves a collaboration between the Oak Ridge National Laboratory (ORNL) and the Center for Applied Energy Research (CAER), University of Kentucky. The carbon fiber composites are produced at the ORNL and activated at the CAER using different methods, with the aims of producing a uniform degree of activation, and of closely controlling pore structure and adsorptive properties. The main focus of the present work has been to find a satisfactory means to uniformly activate large samples of carbon fiber composites and produce controlled pore structures. Several environmental applications have been explored for the activated carbon fiber composites. One of these was to evaluate the activated composites for the separation of CH{sub 4}-CO{sub 2} mixtures, and an apparatus was constructed specifically for this purpose. The composites were further evaluated in the cyclic recovery of volatile organics. The activated carbon fiber composites have also been tested for possible water treatment applications by studying the adsorption of sodium pentachlorophenolate, PCP.

  18. Structural and Biochemical Determinants of Ligand Binding by the c-di-GMP Riboswitch

    SciTech Connect (OSTI)

    Smith, K.; Lipchock, S; Livingston,; Shanahan, C; Strobel, S

    2010-01-01T23:59:59.000Z

    The bacterial second messenger c-di-GMP is used in many species to control essential processes that allow the organism to adapt to its environment. The c-di-GMP riboswitch (GEMM) is an important downstream target in this signaling pathway and alters gene expression in response to changing concentrations of c-di-GMP. The riboswitch selectively recognizes its second messenger ligand primarily through contacts with two critical nucleotides. However, these two nucleotides are not the most highly conserved residues within the riboswitch sequence. Instead, nucleotides that stack with c-di-GMP and that form tertiary RNA contacts are the most invariant. Biochemical and structural evidence reveals that the most common natural variants are able to make alternative pairing interactions with both guanine bases of the ligand. Additionally, a high-resolution (2.3 {angstrom}) crystal structure of the native complex reveals that a single metal coordinates the c-di-GMP backbone. Evidence is also provided that after transcription of the first nucleotide on the 3{prime}-side of the P1 helix, which is predicted to be the molecular switch, the aptamer is functional for ligand binding. Although large energetic effects occur when several residues in the RNA are altered, mutations at the most conserved positions, rather than at positions that base pair with c-di-GMP, have the most detrimental effects on binding. Many mutants retain sufficient c-di-GMP affinity for the RNA to remain biologically relevant, which suggests that this motif is quite resilient to mutation.

  19. Nine Crystal Structures Determine the Substrate Envelope of the MDR HIV-1 Protease

    SciTech Connect (OSTI)

    Liu, Zhigang; Wang, Yong; Brunzelle, Joseph; Kovari, Iulia A.; Kovari, Ladislau C. (WSU-MED); (NWU)

    2012-03-27T23:59:59.000Z

    Under drug selection pressure, emerging mutations render HIV-1 protease drug resistant, leading to the therapy failure in anti-HIV treatment. It is known that nine substrate cleavage site peptides bind to wild type (WT) HIV-1 protease in a conserved pattern. However, how the multidrug-resistant (MDR) HIV-1 protease binds to the substrate cleavage site peptides is yet to be determined. MDR769 HIV-1 protease (resistant mutations at residues 10, 36, 46, 54, 62, 63, 71, 82, 84, and 90) was selected for present study to understand the binding to its natural substrates. MDR769 HIV-1 protease was co-crystallized with nine substrate cleavage site hepta-peptides. Crystallographic studies show that MDR769 HIV-1 protease has an expanded substrate envelope with wide open flaps. Furthermore, ligand binding energy calculations indicate weaker binding in MDR769 HIV-1 protease-substrate complexes. These results help in designing the next generation of HIV-1 protease inhibitors by targeting the MDR HIV-1 protease.

  20. An Integrated Assessment of Geochemical and Community Structure Determinants of Metal Reduction Rates in Subsurface Sediments

    SciTech Connect (OSTI)

    Joel E. Kostka

    2008-03-24T23:59:59.000Z

    This project represented a joint effort between Oak Ridge National Laboratory (ORNL), the University of Tennessee (UT), and Florida State University (FSU). ORNL served as the lead in-stitution with Dr. A.V. Palumbo responsible for project coordination, integration, and deliver-ables. In situ uranium bioremediation is focused on biostimulating indigenous microorganisms through a combination of pH neutralization and the addition of large amounts of electron donor. Successful biostimulation of U(VI) reduction has been demonstrated in the field and in the laboratory. However, little data is available on the dynamics of microbial populations capable of U(VI) reduction, and the differences in the microbial community dynamics between proposed electron donors have not been explored. In order to elucidate the potential mechanisms of U(VI) reduction for optimization of bioremediation strategies, structure-function relationships of microbial populations were investigated in microcosms of subsurface materials cocontaminated with radionuclides and nitrate from the Oak Ridge Field Research Center (ORFRC), Oak Ridge, Tennessee.

  1. The Molecular Structure of a Phosphatidylserine Bilayer Determined by Scattering and Molecular Dynamics Simulations

    SciTech Connect (OSTI)

    Pan, Jianjun [University of South Florida, Tampa (USF)] [University of South Florida, Tampa (USF); Cheng, Xiaolin [ORNL] [ORNL; Monticelli, Luca [Institut National de la Santé et de la Recherche Médicale (INSERM) and INTS, France] [Institut National de la Santé et de la Recherche Médicale (INSERM) and INTS, France; Heberle, Frederick A [ORNL] [ORNL; Kucerka, Norbert [Atomic Energy of Canada Limited (AECL), Canadian Neutron Beam Centre (CNBC) and Comenius University,] [Atomic Energy of Canada Limited (AECL), Canadian Neutron Beam Centre (CNBC) and Comenius University,; Tieleman, D. Peter [University of Calgary, ALberta, Canada] [University of Calgary, ALberta, Canada; Katsaras, John [ORNL] [ORNL

    2014-01-01T23:59:59.000Z

    Phosphatidylserine (PS) lipids play essential roles in biological processes, including enzyme activation and apoptosis. We report on the molecular structure and atomic scale interactions of a fluid bilayer composed of 1-palmitoyl-2-oleoyl-sn-glycero-3-phosphatidylserine (POPS). A scattering density profile model, aided by molecular dynamics (MD) simulations, was developed to jointly refine different contrast small-angle neutron and X-ray scattering data, which yielded a lipid area of 62.7 A2 at 25 C. MD simulations with POPS lipid area constrained at different values were also performed using all-atom and aliphatic united-atom models. The optimal simulated bilayer was obtained using a model-free comparison approach. Examination of the simulated bilayer, which agrees best with the experimental scattering data, reveals a preferential interaction between Na+ ions and the terminal serine and phosphate moieties. Long-range inter-lipid interactions were identified, primarily between the positively charged ammonium, and the negatively charged carboxylic and phosphate oxygens. The area compressibility modulus KA of the POPS bilayer was derived by quantifying lipid area as a function of surface tension from area-constrained MD simulations. It was found that POPS bilayers possess a much larger KA than that of neutral phosphatidylcholine lipid bilayers. We propose that the unique molecular features of POPS bilayers may play an important role in certain physiological functions.

  2. WHAT DETERMINES THE DENSITY STRUCTURE OF MOLECULAR CLOUDS? A CASE STUDY OF ORION B WITH HERSCHEL

    SciTech Connect (OSTI)

    Schneider, N.; Andre, Ph.; Koenyves, V.; Motte, F.; Arzoumanian, D.; Didelon, P.; Hennemann, M.; Hill, T.; Palmeirim, P.; Peretto, N.; Roy, A. [IRFU/SAp CEA/DSM, Laboratoire AIM CNRS, Universite Paris Diderot, F-91191 Gif-sur-Yvette (France); Bontemps, S. [OASU/LAB-UMR5804, CNRS, Universite Bordeaux 1, F-33270 Floirac (France); Federrath, C. [MoCA, School of Mathematical Sciences, Monash University, VIC 3800 (Australia); Ward-Thompson, D. [Jeremiah Horrocks Institute, UCLAN, Preston, Lancashire PR1 2HE (United Kingdom); Benedettini, M.; Pezzuto, S.; Rygl, K. L. J. [IAPS-INAF, Fosso del Cavaliere 100, I-00133 Roma (Italy); Bressert, E. [CSIRO Astronomy and Space Science, Epping (Australia); Di Francesco, J. [NRCC, Herzberg Institute of Astrophysics, University of Victoria (Canada); Griffin, M. [University School of Physics and Astronomy, Cardiff (United Kingdom); and others

    2013-04-01T23:59:59.000Z

    A key parameter to the description of all star formation processes is the density structure of the gas. In this Letter, we make use of probability distribution functions (PDFs) of Herschel column density maps of Orion B, Aquila, and Polaris, obtained with the Herschel Gould Belt survey (HGBS). We aim to understand which physical processes influence the PDF shape, and with which signatures. The PDFs of Orion B (Aquila) show a lognormal distribution for low column densities until A{sub V} {approx} 3 (6), and a power-law tail for high column densities, consistent with a {rho}{proportional_to}r {sup -2} profile for the equivalent spherical density distribution. The PDF of Orion B is broadened by external compression due to the nearby OB stellar aggregates. The PDF of a quiescent subregion of the non-star-forming Polaris cloud is nearly lognormal, indicating that supersonic turbulence governs the density distribution. But we also observe a deviation from the lognormal shape at A{sub V} > 1 for a subregion in Polaris that includes a prominent filament. We conclude that (1) the point where the PDF deviates from the lognormal form does not trace a universal A{sub V} -threshold for star formation, (2) statistical density fluctuations, intermittency, and magnetic fields can cause excess from the lognormal PDF at an early cloud formation stage, (3) core formation and/or global collapse of filaments and a non-isothermal gas distribution lead to a power-law tail, and (4) external compression broadens the column density PDF, consistent with numerical simulations.

  3. Structure of a zeolite ZSM-5-Bithiophene complex as determined by high-resolution synchrotron X-ray powder diffraction

    SciTech Connect (OSTI)

    Eylem, C.; Hriljac, J.A. [Brookhaven National Laboratory, Upton, NY (United States)] [Brookhaven National Laboratory, Upton, NY (United States); Ramamurthy, V.; Corbin, D.R. [Du Pont Co., Wilmington, DE (United States)] [Du Pont Co., Wilmington, DE (United States); Parise, J.B. [State Univ. of New York, Stony Brook, NY (United States)] [State Univ. of New York, Stony Brook, NY (United States)

    1996-04-01T23:59:59.000Z

    The structure of a zeolite ZSM-5 complex with ca. 4 molecules/unit cell of bithiophene was determined by high-resolution synchrotron X-ray powder diffraction. In adopts monoclinic symmetry in space group P2{sub 1}/n ({alpha} unique) between room temperature and 25 K, with refined lattice parameters at 25 K of a = 20.0614(4), b = 19.8251(4), c = 13.3623(4) {Angstrom}, and a = 90.848(2){degrees}. Structural modeling and Rietveld refinements showed that there are two crystallographically unique bithiophene molecules, each with an occupancy factor of ca. 0.5. One bithiophene is localized at the center of the straight channels with one of the rings residing at the intersection with the sinusoidal channels. The other molecule lies in the sinusoidal channels and projects partially into the straight channels. The relationship between polythiophene chain length and the formation of conducting polythiophene molecular wires in the ZSM-5 framework is discussed. 32 refs., 4 figs., 3 tabs.

  4. Experimental phasing for structure determination using membrane-protein crystals grown by the lipid cubic phase method

    SciTech Connect (OSTI)

    Li, Dianfan; Pye, Valerie E.; Caffrey, Martin, E-mail: martin.caffrey@tcd.ie [Trinity College Dublin, Dublin (Ireland)

    2015-01-01T23:59:59.000Z

    Very little information is available in the literature concerning the experimental heavy-atom phasing of membrane-protein structures where the crystals have been grown using the lipid cubic phase (in meso) method. In this paper, pre-labelling, co-crystallization, soaking, site-specific mercury binding to genetically engineered single-cysteine mutants and selenomethionine labelling as applied to an integral membrane kinase crystallized in meso are described. An assay to assess cysteine accessibility for mercury labelling of membrane proteins is introduced. Despite the marked increase in the number of membrane-protein structures solved using crystals grown by the lipid cubic phase or in meso method, only ten have been determined by SAD/MAD. This is likely to be a consequence of the technical difficulties associated with handling proteins and crystals in the sticky and viscous hosting mesophase that is usually incubated in glass sandwich plates for the purposes of crystallization. Here, a four-year campaign aimed at phasing the in meso structure of the integral membrane diacylglycerol kinase (DgkA) from Escherichia coli is reported. Heavy-atom labelling of this small hydrophobic enzyme was attempted by pre-labelling, co-crystallization, soaking, site-specific mercury binding to genetically engineered single-cysteine mutants and selenomethionine incorporation. Strategies and techniques for special handling are reported, as well as the typical results and the lessons learned for each of these approaches. In addition, an assay to assess the accessibility of cysteine residues in membrane proteins for mercury labelling is introduced. The various techniques and strategies described will provide a valuable reference for future experimental phasing of membrane proteins where crystals are grown by the lipid cubic phase method.

  5. The structures of full-length p53 monomer and tetramer when unbound to DNA and structural domain determination in p53

    E-Print Network [OSTI]

    Pham, Nam Hoang

    2011-01-01T23:59:59.000Z

    DNA recognition by p53 tetramers. Mol Cell 22, 741-753. 20.binding modes for p53 tetramers in complex with DNA. Procsite as a self-assembled tetramer. Structure 18, 246-256. 7.

  6. One simple step in the identification of the cofactors signals, one giant leap for the solution structure determination of multiheme proteins

    SciTech Connect (OSTI)

    Morgado, Leonor; Fernandes, Ana P. [Requimte-CQFB, Departamento de Quimica, Faculdade de Ciencias e Tecnologia, Universidade Nova de Lisboa, Campus Caparica, 2829-516 Caparica (Portugal)] [Requimte-CQFB, Departamento de Quimica, Faculdade de Ciencias e Tecnologia, Universidade Nova de Lisboa, Campus Caparica, 2829-516 Caparica (Portugal); Londer, Yuri Y. [Biosciences Division, Argonne National Laboratory, Argonne, IL 60439 (United States)] [Biosciences Division, Argonne National Laboratory, Argonne, IL 60439 (United States); Bruix, Marta [Departamento de Espectroscopia y Estructura Molecular, Instituto de Quimica-Fisica 'Rocasolano', CSIC, Serrano 119, 28006 Madrid (Spain)] [Departamento de Espectroscopia y Estructura Molecular, Instituto de Quimica-Fisica 'Rocasolano', CSIC, Serrano 119, 28006 Madrid (Spain); Salgueiro, Carlos A., E-mail: csalgueiro@dq.fct.unl.pt [Requimte-CQFB, Departamento de Quimica, Faculdade de Ciencias e Tecnologia, Universidade Nova de Lisboa, Campus Caparica, 2829-516 Caparica (Portugal)

    2010-03-12T23:59:59.000Z

    Multiheme proteins play major roles in various biological systems. Structural information on these systems in solution is crucial to understand their functional mechanisms. However, the presence of numerous proton-containing groups in the heme cofactors and the magnetic properties of the heme iron, in particular in the oxidised state, complicates significantly the assignment of the NMR signals. Consequently, the multiheme proteins superfamily is extremely under-represented in structural databases, which constitutes a severe bottleneck in the elucidation of their structural-functional relationships. In this work, we present a strategy that simplifies the assignment of the NMR signals in multiheme proteins and, concomitantly, their solution structure determination, using the triheme cytochrome PpcA from the bacterium Geobacter sulfurreducens as a model. Cost-effective isotopic labeling was used to double label ({sup 13}C/{sup 15}N) the protein in its polypeptide chain, with the correct folding and heme post-translational modifications. The combined analysis of {sup 1}H-{sup 13}C HSQC NMR spectra obtained for labeled and unlabeled samples of PpcA allowed a straight discrimination between the heme cofactors and the polypeptide chain signals and their confident assignment. The results presented here will be the foundations to assist solution structure determination of multiheme proteins, which are still very scarce in the literature.

  7. The role of structure and entropy in determining differences in dynamics for glass formers with different interaction potentials

    E-Print Network [OSTI]

    Atreyee Banerjee; Shiladitya Sengupta; Srikanth Sastry; Sarika Maitra Bhattacharyya

    2014-04-03T23:59:59.000Z

    We present a study of two model liquids with different interaction potentials, exhibiting similar structure but significantly different dynamics at low temperatures. By evaluating the configurational entropy, we show that the differences in the dynamics of these systems can be understood in terms of their thermodynamic differences. Analyzing their structure, we demonstrate that differences in pair correlation functions between the two systems, through their contribution to the entropy, dominate the differences in their dynamics, and indeed overestimate the differences. Including the contribution of higher order structural correlations to the entropy leads to smaller estimates for the relaxation times, as well as smaller differences between the two studied systems.

  8. Single-particle structure determination by correlations of snapshot X-ray diffraction patterns (CXIDB ID 20)

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

    Starodub, D.

    This deposition includes the diffraction images generated by the paired polystyrene spheres in random orientations. These images were used to determine and phase the single particle diffraction volume from their autocorrelation functions.

  9. Determination of the linkage relationships and the gene-centromere genetic distances for endopeptidase structural genes in hexaploid wheat

    E-Print Network [OSTI]

    McMillin, David Edwin

    1977-01-01T23:59:59.000Z

    . The linkage relationships for the (EP) structural gene are shown below. centromere 42. 17 ~E -Blv 13. 04 7AL ~E-Ale 6. 67 ~E-Al 3. 90 10. 67 ACKNOMLF. DGT'KNT S Sincere gratitude is extended to all members of my graduate committee for. their guidance..., or KP-BlZ and their chromosome constitut on Linkage relationships for three (EP) structural genes on 7AL Chi square test for independence of EP-Aj. y and ~E-Alx Chi square testing the hypothesis that two independently segregating genes in FI...

  10. Using computerized tomography to determine ionospheric structures. Part 2, A method using curved paths to increase vertical resolution

    SciTech Connect (OSTI)

    Vittitoe, C.N.

    1993-08-01T23:59:59.000Z

    A method is presented to unfold the two-dimensional vertical structure in electron density by using data on the total electron content for a series of paths through the ionosphere. The method uses a set of orthonormal basis functions to represent the vertical structure and takes advantage of curved paths and the eikonical equation to reduce the number of iterations required for a solution. Curved paths allow a more thorough probing of the ionosphere with a given set of transmitter and receiver positions. The approach can be directly extended to more complex geometries.

  11. Summary Drought stress plays an important role in deter-mining both the structure and function of forest ecosystems,

    E-Print Network [OSTI]

    was parameterized from local mea- surements of vegetation structure, soil properties and meteo- rology, and tested against independent measurements of eco- system latent energy (LE) and carbon fluxes and soil water with the model suggest a highly conservative allocation strategy in the vegeta- tion, focused belowground

  12. Structure andhydrogeochemicalfunctioningof a sparkling natural mineral1 water system determined usinga multidisciplinary approach: a case study2

    E-Print Network [OSTI]

    Boyer, Edmond

    rootedhydraulically independent permeable structures that arefed by deep CO2-rich crustal20 fluids.The non sites.27 28 Keywords:thermal conditions, CO2, fractured rock, natural mineral water, France29 30 NOTE(Clemente and Villadolid-Abrigo 1993; Lachassagne et al. 2009).42 Sparklingnaturalmineral water systems comprise water, CO2

  13. Structures and Free-Energy Landscapes of the Wild Type and Mutants of the A2130 Peptide Are Determined

    E-Print Network [OSTI]

    Thirumalai, Devarajan

    Structures and Free-Energy Landscapes of the Wild Type and Mutants of the A21­30 Peptide-resistant wild-type A21­30 peptide and mutants E22Q (Dutch), D23N (Iowa), and K28N, are analyzed using molecular. Free-energy profiles and disconnectivity repre- sentation of the energy landscapes show

  14. Acta Cryst. (1997). B53, 916-922 Multi-Solution Genetic Algorithm Approach to Surface Structure Determination Using

    E-Print Network [OSTI]

    Marks, Laurence D.

    916 Acta Cryst. (1997). B53, 916-922 Multi-Solution Genetic Algorithm Approach to Surface Structure@merle.acns.nwu, edu (Received 5 May 1997; accepted 22 July 1997) Abstract We show that it is possible to use a multi (Collazo-Davila, Marks, Nishii & Tanishiro, 1997; Gilmore, Marks, Grozea, Collazo, Landree & Twesten, 1997

  15. Synthesis, Structure Determination, and Hydrogen Sorption Studies of New Metal-Organic Frameworks Using Triazole and Naphthalenedicarboxylic Acid

    SciTech Connect (OSTI)

    Park,H.; Britten, J.; Mueller, U.; Lee, J.; Li, J.; Parise, J.

    2007-01-01T23:59:59.000Z

    Two new metal-organic framework compounds were synthesized under solvothermal conditions using Zn{sup 2+} ion, 1,2,4-triazole (TRZ), and 1,4- and 2,6-naphthalenedicarboxylic acids (NDC): Zn{sub 4}(TRZ){sub 4}(1,4-NDC){sub 2}-2DMF-2H{sub 2}O (1) and Zn{sub 4}(TRZ){sub 4}(2,6-NDC){sub 2}-2DMF-4H{sub 2}O (2). Their crystal structures were characterized by single-crystal X-ray diffraction. Structure 1 crystallizes in the P2{sub 1}/n space group with a = 13.609(2) {angstrom}, b = 27.181(5){angstrom}, c = 13.617(3) {angstrom}, {beta} = 92.46(1){sup o}, V = 5032.4(16) {angstrom}{sup 3}, and Z = 4. Structure 2 crystallizes in orthorhombic Pna2{sub 2} space group with a = 30.978(6) {angstrom}, b = 12.620(3) {angstrom}, c = 13.339(3) {angstrom}, V = 5215(2) {angstrom}{sup 3}, and Z = 4. Both structures are analogues of the previously reported Zn{sub 4}(TRZ){sub 4}(1,4-BDC){sub 2}-16H{sub 2}O where the layers of Zn-triazole moieties are pillared by aromatic dicarboxylates to create 3-D open frameworks. Nitrogen sorption studies revealed that these structures have Brunaer-Emmett-Teller (BET) surface areas of 362.1-584.1 m{sup 2}/g. Hydrogen sorption experiments showed they can store 0.84-1.09 wt % H{sub 2} at 77 K and 1 atm. Although they do not contain large pores or surface areas, they possess the hydrogen sorption capacities comparable to those of highly porous metal-organic frameworks.

  16. A Procedure for Determination of Degradation Acceptance Criteria for Structures and Passive Components in Nuclear Power Plants

    SciTech Connect (OSTI)

    Nie, J.; Braverman, J.; Hofmayer, C.; Choun, Y-S.; Hahm, D.; Choi, I-K.

    2012-01-30T23:59:59.000Z

    The Korea Atomic Energy Research Institute (KAERI) has been collaborating with Brookhaven National Laboratory since 2007 to develop a realistic seismic risk evaluation system which includes the consideration of aging of structures and components in nuclear power plants (NPPs). This collaboration program aims at providing technical support to a five-year KAERI research project, which includes three specific areas that are essential to seismic probabilistic risk assessment: (1) probabilistic seismic hazard analysis, (2) seismic fragility analysis including the effects of aging, and (3) a plant seismic risk analysis. The understanding and assessment of age-related degradations of structures, systems, and components and their impact on plant safety is the major goal of this KAERI-BNL collaboration. Four annual reports have been published before this report as a result of the collaboration research.

  17. Underpotential deposition of Ag adlayers on Pt(111): Structures and determination of O{sub 2} adsorption on Pt(111)

    SciTech Connect (OSTI)

    Marinkovic, N.S.; Wang, J.X.; Adzic, R.R.

    1997-09-01T23:59:59.000Z

    The structure of Ag adlayers deposited at underpotentials in sulfuric acid on Pt(111), and the inhibition of O{sub 2} reduction they cause, have been studied using grazing incident angle x-ray diffraction measurements, as well as linear sweep voltammetry and in situ FTIR spectroscopy. Ag forms a hexagonal incommensurate bilayer, with two mutually commensurate monolayers. It is aligned with the Pt(111) substrate, although slightly expanded. The first monolayer has a commensurate (1 x 1) structure. A second layer causes a restructuring of the first monolayer. Deposition of each monolayer is associated with one voltammetry Peak. A complete inhibition of O{sub 2} reduction on Pt(111) has been observed upon deposition of both, Ag monolayer and bilayer. Analysis of the inhibition of O{sub 2} reduction as a function of the Ag coverage shows that during reduction O{sub 2} adsorbs in a bridge configuration on Pt(111).

  18. Determination of structural characteristics of saturates from diesel and kerosene fuels by carbon-13 nuclear magnetic resonance spectrometry

    SciTech Connect (OSTI)

    Cookson, D.J.; Smith, B.E.

    1985-04-01T23:59:59.000Z

    Two saturated hydrocarbon fractions, one mainly consisting of n-alkanes and the other containing only branched plus cyclic saturates, have been separated from each of a variety of diesel fuels (approximate boiling range 230-320/sup 0/C) and kerosene fuels (approximately 190-230/sup 0/C) using silica chromatography and urea clathration. The n-alkane fractions have been simply characterized by using conventional /sup 13/C NMR spectrometry, yielding average carbon chain lengths. The branched plus cyclic saturates fractions have been characterized by using the gated spin echo (GASPE) /sup 13/C NMR subspectra for each CH/sub n/ group type (n = 0 to 3) and allows the fractional abundances of CH/sub n/ groups to be measured. These data have been employed in devising and calculating a number of novel average structure parameters which report on the extent of branching and occurrence of ring structures in the fractions investigated. Spectral data are also used to identify some specific submolecular structures. 29 references, 7 figures, 4 tables.

  19. COOH-Terminal Clustering of Autoantibody and T-Cell Determinants on the Structure of GAD65 Provide Insights Into the Molecular Basis of Autoreactivity

    SciTech Connect (OSTI)

    Fenalti, Gustavo; Hampe, Christiane S.; Arafat, Yasir; Law, Ruby H.P.; Banga, J. Paul; Mackay, Ian R.; Whisstock, James C.; Buckle, Ashley M.; Rowley, Merrill J. (UWASH); (King’ s College); (Monash)

    2008-11-19T23:59:59.000Z

    To gain structural insights into the autoantigenic properties of GAD65 in type 1 diabetes, we analyzed experimental epitope mapping data in the context of the recently determined crystal structures of GAD65 and GAD67, to allow 'molecular positioning' of epitope sites for B- and T-cell reactivity. Data were assembled from analysis of reported effects of mutagenesis of GAD65 on its reactivity with a panel of 11 human monoclonal antibodies (mAbs), supplemented by use of recombinant Fab to cross-inhibit reactivity with GAD65 by radioimmunoprecipitation of the same mAbs. COOH-terminal region on GAD65 was the major autoantigenic site. B-cell epitopes were distributed within two separate clusters around different faces of the COOH-terminal domain. Inclusion of epitope sites in the pyridoxal phosphate- and NH{sub 2}-terminal domains was attributed to the juxtaposition of all three domains in the crystal structure. Epitope preferences of different mAbs to GAD65 aligned with different clinical expressions of type 1 diabetes. Epitopes for four of five known reactive T-cell sequences restricted by HLA DRB1*0401 were aligned to solvent-exposed regions of the GAD65 structure and colocalized within the two B-cell epitope clusters. The continuous COOH-terminal epitope region of GAD65 was structurally highly flexible and therefore differed markedly from the equivalent region of GAD67. Structural features could explain the differing antigenicity, and perhaps immunogenicity, of GAD65 versus GAD67. The proximity of B- and T-cell epitopes within the GAD65 structure suggests that antigen-antibody complexes may influence antigen processing by accessory cells and thereby T-cell reactivity.

  20. The determination of interfacial structure and phase transitions in Al/Cu and Al/Ni interfaces by means of surface extended x-ray absorption fine structure

    SciTech Connect (OSTI)

    Barrera, E.V. (Rice Univ., Houston, TX (United States). Dept. of Mechanical Engineering and Materials Science); Heald, S.M. (Brookhaven National Lab., Upton, NY (United States))

    1991-01-01T23:59:59.000Z

    Surface extended x-ray absorption fine structure (SEXAFS) was used to investigate the interfacial conditions of Al/Cu and Al/Ni shallow buried interfaces. Previous studies using glancing angle extended x-ray absorption fine structure, x-ray reflectivity, photoemission, and SEXAFS produced conflicting results as to whether or not the interfaces between Al and Cu and Al and Ni were reacted upon room temperature deposition. In this study polycrystalline bilayers of Al/Cu and Al/Ni and trilayers of Al/Cu/Al and Al/Ni/Al were deposited on tantalum foil at room temperature in ultra high vacuum and analyzed to evaluate the reactivity of these systems on a nanometer scale. It become overwhelming apparent that the interfacial phase reactions were a function of the vacuum conditions. Samples deposited with the optimum vacuum conditions showed reaction products upon deposition at room temperature which were characterized by comparisons to standards and by least squares fitting the be CuAl{sub 2} and NiAl{sub 3} respectively. The results of this study that the reacted zone thicknesses were readily dependent on the deposition parameters. For both Al on Cu and Al on Ni as well as the metal on Al conditions 10{Angstrom} reaction zones were observed. These reaction zones were smaller than that observed for bilayers of Al on Cu (30{Angstrom}) and Al on Ni (60{Angstrom}) where deposition rates were much higher and samples were much thicker. The reaction species are evident by SEXAFS, where the previous photoemission studies only indicated that changes had occurred. Improved vacuum conditions as compared to the earlier experiments is primarily the reason reactions on deposition were seen in this study as compared to the earlier SEXAFS studies.

  1. The determination of interfacial structure and phase transitions in Al/Cu and Al/Ni interfaces by means of surface extended x-ray absorption fine structure

    SciTech Connect (OSTI)

    Barrera, E.V. [Rice Univ., Houston, TX (United States). Dept. of Mechanical Engineering and Materials Science; Heald, S.M. [Brookhaven National Lab., Upton, NY (United States)

    1991-12-31T23:59:59.000Z

    Surface extended x-ray absorption fine structure (SEXAFS) was used to investigate the interfacial conditions of Al/Cu and Al/Ni shallow buried interfaces. Previous studies using glancing angle extended x-ray absorption fine structure, x-ray reflectivity, photoemission, and SEXAFS produced conflicting results as to whether or not the interfaces between Al and Cu and Al and Ni were reacted upon room temperature deposition. In this study polycrystalline bilayers of Al/Cu and Al/Ni and trilayers of Al/Cu/Al and Al/Ni/Al were deposited on tantalum foil at room temperature in ultra high vacuum and analyzed to evaluate the reactivity of these systems on a nanometer scale. It become overwhelming apparent that the interfacial phase reactions were a function of the vacuum conditions. Samples deposited with the optimum vacuum conditions showed reaction products upon deposition at room temperature which were characterized by comparisons to standards and by least squares fitting the be CuAl{sub 2} and NiAl{sub 3} respectively. The results of this study that the reacted zone thicknesses were readily dependent on the deposition parameters. For both Al on Cu and Al on Ni as well as the metal on Al conditions 10{Angstrom} reaction zones were observed. These reaction zones were smaller than that observed for bilayers of Al on Cu (30{Angstrom}) and Al on Ni (60{Angstrom}) where deposition rates were much higher and samples were much thicker. The reaction species are evident by SEXAFS, where the previous photoemission studies only indicated that changes had occurred. Improved vacuum conditions as compared to the earlier experiments is primarily the reason reactions on deposition were seen in this study as compared to the earlier SEXAFS studies.

  2. Precise determination of the spin structure function $\\mathbf{g_1}$ of the proton, deuteron and neutron

    E-Print Network [OSTI]

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

    2006-01-01T23:59:59.000Z

    Precise measurements of the spin structure functions of the proton $g_1^p(x,Q^2)$ and deuteron $g_1^d(x,Q^2)$ are presented over the kinematic range $0.0041 \\leq x \\leq 0.9$ and $0.18 $ GeV$^2$ $\\leq Q^2 \\leq 20$ GeV$^2$. The data were collected at the HERMES experiment at DESY, in deep-inelastic scattering of 27.6 GeV longitudinally polarized positrons off longitudinally polarized hydrogen and deuterium gas targets internal to the HERA storage ring. The neutron spin structure function $g_1^n$ is extracted by combining proton and deuteron data. The integrals of $g_1^{p,d}$ at $Q^2=5$ GeV$^2$ are evaluated over the measured $x$ range. Neglecting any possible contribution to the $g_1^d$ integral from the region $x \\leq 0.021$, a value of $0.330 \\pm 0.011\\mathrm{(theo.)}\\pm0.025\\mathrm{(exp.)}\\pm 0.028$(evol.) is obtained for the flavor-singlet axial charge $a_0$ in a leading-twist NNLO analysis.

  3. High-Pressure Synthesis and Structure Determination of K6(SeO4)(SeO5), The First Potassium Orthoselenate(VI)

    SciTech Connect (OSTI)

    Orosel,D.; Dinnebeier, R.; Jansen, M.

    2006-01-01T23:59:59.000Z

    The authors report on the first synthesis of a potassium orthoselenate(VI), K{sub 6}(SeO{sub 4})(SeO{sub 5}), and the structure determination from synchrotron powder diffraction data. The title compound crystallizes in the tetragonal space group P4{sub 1}2{sub 1}2 with a = 8.1259(1) {angstrom}, c = 17.4953(2) {angstrom}, V = 1155.21(2) {angstrom}{sup 3}, and Z = 4. Selenium displays two different complex anions, tetrahedral SeO{sub 4}{sup 2-} and trigonal-bipyramidal SeO{sub 5}{sup 4-}. When the formula is reduced to A{sub 3}B, the spatial arrangement of the constituting building units can be derived from the Li{sub 3}Bi type of structure.

  4. U2504 Determines the Species Specificity of the A-Site Cleft Antibiotics: The Structures of Tiamulin, Homoharringtonine, and Bruceantin Bound to the Ribosome

    SciTech Connect (OSTI)

    Gürel, Güliz; Blaha, Gregor; Moore, Peter B.; Steitz, Thomas A.; Yale

    2009-06-30T23:59:59.000Z

    Structures have been obtained for the complexes that tiamulin, homoharringtonine, and bruceantin form with the large ribosomal subunit of Haloarcula marismortui at resolutions ranging from 2.65 to 3.2 {angstrom}. They show that all these inhibitors block protein synthesis by competing with the amino acid side chains of incoming aminoacyl-tRNAs for binding in the Asite cleft in the peptidyl-transferase center, which is universally conserved. In addition, these structures support the hypothesis that the species specificity exhibited by the A-site cleft inhibitors is determined by the interactions they make, or fail to make, with a single nucleotide, U2504 (Escherichia coli). In the ribosome, the position of U2504 is controlled by its interactions with neighboring nucleotides, whose identities vary among kingdoms.

  5. U2504 Determines the Species Specificity of the A-site Cleft Antibiotics: The sStructures of Tiamulin, Homoharringtonine and Bruceantin Bound to the Ribosome

    SciTech Connect (OSTI)

    Gurel, G.; Blaha, G; Moore, P; Steitz,

    2009-01-01T23:59:59.000Z

    Structures have been obtained for the complexes that tiamulin, homoharringtonine, and bruceantin form with the large ribosomal subunit of Haloarcula marismortui at resolutions ranging from 2.65 to 3.2 {angstrom}. They show that all these inhibitors block protein synthesis by competing with the amino acid side chains of incoming aminoacyl-tRNAs for binding in the A-site cleft in the peptidyl-transferase center, which is universally conserved. In addition, these structures support the hypothesis that the species specificity exhibited by the A-site cleft inhibitors is determined by the interactions they make, or fail to make, with a single nucleotide, U2504 (Escherichia coli). In the ribosome, the position of U2504 is controlled by its interactions with neighboring nucleotides, whose identities vary among kingdoms.

  6. Synthesis and determination of the structural and optical characteristics of cBN micropowder with Eu{sup 3+} ions

    SciTech Connect (OSTI)

    Leonchik, S. V., E-mail: Leonchik@physics.by; Karotki, A. V. [National Academy of Sciences of Belarus, Scientific-Practical Materials Research Center (Belarus)] [National Academy of Sciences of Belarus, Scientific-Practical Materials Research Center (Belarus)

    2013-10-15T23:59:59.000Z

    Cubic boron-nitride micropowder with Eu{sup 3+} ions (cBN:Eu) is synthesized under conditions of high pressures and temperatures. The structural, morphological, chemical, and optical characteristics of the cBN:Eu micropowder are studied using X-ray diffraction, energy-dispersive X-ray spectral microanalysis, photoluminescence, and optical transmission methods. It is found that the cBN:Eu lattice parameter is {approx}3.615 A. The intense red luminescence of the cBN:Eu micropowder (red glow), measured in the visible region of the spectrum in the range from 550 to 750 nm, is attributed to intracenter 4f-electron transitions of the Eu{sup 3+} ions. The possible nature of the cBN:Eu micropowder luminescence is discussed.

  7. X-ray absorption fine structure spectroscopic determination of plutonium speciation at the Rocky Flats environmental technology

    SciTech Connect (OSTI)

    Lezama-pacheco, Juan S [Los Alamos National Laboratory; Conradson, Steven D [Los Alamos National Laboratory; Clark, David L [Los Alamos National Laboratory

    2008-01-01T23:59:59.000Z

    X-ray Absorption Fine Structure spectroscopy was used to probe the speciation of the ppm level Pu in thirteen soil and concrete samples from the Rocky Flats Environmental Technology Site in support of the site remediation effort that has been successfully completed since these measurements. In addition to X-ray Absorption Near Edge Spectra, two of the samples yielded Extended X-ray Absorption Fine Structure spectra that could be analyzed by curve-fits. Most of these spectra exhibited features consistent with PU(IV), and more specificaJly, PuO{sub 2+x}-type speciation. Two were ambiguous, possibly indicating that Pu that was originally present in a different form was transforming into PuO{sub 2+x}, and one was interpreted as demonstrating the presence of an unusual Pu(VI) compound, consistent with its source being spills from a PUREX purification line onto a concrete floor and the resultant extreme conditions. These experimental results therefore validated models that predicted that insoluble PuO{sub 2+x} would be the most stable form of Pu in equilibrium with air and water even when the source terms were most likely Pu metal with organic compounds or a Pu fire. A corollary of these models' predictions and other in situ observations is therefore that the minimal transport of Pu that occurred on the site was via the resuspension and mobilization of colloidal particles. Under these conditions, the small amounts of diffusely distributed Pu that were left on the site after its remediation pose only a negligible hazard.

  8. Iron silicide formation at different layers of (Fe/Si){sub 3} multilayered structures determined by conversion electron Mössbauer spectroscopy

    SciTech Connect (OSTI)

    Badía-Romano, L., E-mail: lbadia@unizar.es; Bartolomé, J. [Departamento de Física de la Materia Condensada, Instituto de Ciencia de Materiales de Aragón, CSIC-Universidad de Zaragoza, E-50009 Zaragoza (Spain); Rubín, J. [Departamento de Ciencia y Tecnología de Materiales y Fluidos, Instituto de Ciencia de Materiales de Aragón, CSIC-Universidad de Zaragoza, E-50018 Zaragoza (Spain); Magén, C. [Laboratorio de Microscopías Avanzadas (LMA), Instituto de Nanociencia de Aragón (INA), Universidad de Zaragoza, E-50018 Zaragoza (Spain); Bürgler, D. E. [Peter Grünberg Institut (PGI-6), Forschungszentrum Jülich GmbH, D-52425 Jülich (Germany)

    2014-07-14T23:59:59.000Z

    The morphology and the quantitative composition of the Fe-Si interface layer forming at each Fe layer of a (Fe/Si){sub 3} multilayer have been determined by means of conversion electron Mössbauer spectroscopy (CEMS) and high-resolution transmission electron microscopy (HRTEM). For the CEMS measurements, each layer was selected by depositing the Mössbauer active {sup 57}Fe isotope with 95% enrichment. Samples with Fe layers of nominal thickness d{sub Fe}?=?2.6?nm and Si spacers of d{sub Si}?=?1.5?nm were prepared by thermal evaporation onto a GaAs(001) substrate with an intermediate Ag(001) buffer layer. HRTEM images showed that Si layers grow amorphous and the epitaxial growth of the Fe is good only for the first deposited layer. The CEMS spectra show that at all Fe/Si and Si/Fe interfaces a paramagnetic c-Fe{sub 1?x}Si phase is formed, which contains 16% of the nominal Fe deposited in the Fe layer. The bottom Fe layer, which is in contact with the Ag buffer, also contains ?-Fe and an Fe{sub 1?x}Si{sub x} alloy that cannot be attributed to a single phase. In contrast, the other two layers only comprise an Fe{sub 1?x}Si{sub x} alloy with a Si concentration of ?0.15, but no ?-Fe.

  9. IMPROVED V II log(gf) VALUES, HYPERFINE STRUCTURE CONSTANTS, AND ABUNDANCE DETERMINATIONS IN THE PHOTOSPHERES OF THE SUN AND METAL-POOR STAR HD 84937

    SciTech Connect (OSTI)

    Wood, M. P.; Lawler, J. E.; Den Hartog, E. A. [Department of Physics, University of Wisconsin, Madison, WI 53706 (United States); Sneden, C. [Department of Astronomy and McDonald Observatory, University of Texas, Austin, TX 78712 (United States); Cowan, J. J., E-mail: mpwood@wisc.edu, E-mail: jelawler@wisc.edu, E-mail: eadenhar@wisc.edu, E-mail: chris@verdi.as.utexas.edu, E-mail: cowan@nhn.ou.edu [Homer L. Dodge Department of Physics and Astronomy, University of Oklahoma, Norman, OK 73019 (United States)

    2014-10-01T23:59:59.000Z

    New experimental absolute atomic transition probabilities are reported for 203 lines of V II. Branching fractions are measured from spectra recorded using a Fourier transform spectrometer and an echelle spectrometer. The branching fractions are normalized with radiative lifetime measurements to determine the new transition probabilities. Generally good agreement is found between this work and previously reported V II transition probabilities. Two spectrometers, independent radiometric calibration methods, and independent data analysis routines enable a reduction in systematic uncertainties, in particular those due to optical depth errors. In addition, new hyperfine structure constants are measured for selected levels by least squares fitting line profiles in the FTS spectra. The new V II data are applied to high resolution visible and UV spectra of the Sun and metal-poor star HD 84937 to determine new, more accurate V abundances. Lines covering a range of wavelength and excitation potential are used to search for non-LTE effects. Very good agreement is found between our new solar photospheric V abundance, log ?(V) = 3.95 from 15 V II lines, and the solar-system meteoritic value. In HD 84937, we derive [V/H] = –2.08 from 68 lines, leading to a value of [V/Fe] = 0.24.

  10. Investigation of protein structure determination

    E-Print Network [OSTI]

    in the manuscript are based on my individual analysis of data acquired by the collaboration at LCLS and on my individual work before experiments at LCLS in preparation laborator

  11. Determining the effective viscosity of a Shear Induced State Structure (SIS) surfactant, C16TMASal, during injection into a porous medium

    E-Print Network [OSTI]

    Platt, Frank Martin

    1994-01-01T23:59:59.000Z

    The purpose of this experimental study was to determine both the effective viscosity and the suitability of C16TASal for use in enhanced oil recovery. The work eventually involved the injection of a single phase fluid with various concentrations...

  12. The impact of market structure on price determination : a simulation approach using multi-agent reinforcement learning in continuous state and action space

    E-Print Network [OSTI]

    Shu, Buliao

    2014-01-01T23:59:59.000Z

    This thesis proposes a simulation tool to study the question of how market structure and market players' behavior affect price movements. The adaptive market simulation system consists of multiple agents and a centralized ...

  13. Novel Application of X-ray Computed Tomography: Determination of Gas/Liquid Contact Area and Liquid Holdup in Structured Packing

    E-Print Network [OSTI]

    Eldridge, R. Bruce

    Novel Application of X-ray Computed Tomography: Determination of Gas/Liquid Contact Area and Liquid Company, 1 Neumann Way-M/D Q8, Cincinnati, Ohio 45215 X-ray computed tomography (CT) was utilized Principles of X-ray Computed Tomography. X-ray computed tomography (CT) is used to noninvasively

  14. Precise Determination of the Deuteron Spin Structure at Low to Moderate $Q^2$ with CLAS and Extraction of the Neutron Contribution

    E-Print Network [OSTI]

    N. Guler; R. G. Fersch; S. E. Kuhn; P. Bosted; K. A. Griffioen; C. Keith; R. Minehart; Y. Prok; K. P. Adhikari; D. Adikaram; M. J. Amaryan; M. D. Anderson; S. Anefalos Pereira; J. Ball; M. Battaglieri; V. Batourine; I. Bedlinskiy; W. J. Briscoe; W. K. Brooks; S. Bultmann; V. D. Burkert; D. S. Carman; A. Celentano; S. Chandavar; G. Charles; L. Colaneri; P. L. Cole; M. Contalbrigo; D. Crabb; V. Crede; A. D Angelo; N. Dashyan; A. Deur; C. Djalali; G. E. Dodge; R. Dupre; A. El Alaoui; L. El Fassi; L. Elouadrhiri; P. Eugenio; G. Fedotov; S. Fegan; A. Filippi; J. A. Fleming; T. A. Forest; B. Garillon; M. Garcon; N. Gevorgyan; G. P. Gilfoyle; K. L. Giovanetti; F. X. Girod; J. T. Goetz; E. Golovatch; R. W. Gothe; M. Guidal; L. Guo; K. Hafidi; H. Hakobyan; N. Harrison; M. Hattawy; K. Hicks; D. Ho; M. Holtrop; S. M. Hughes; C. E. Hyde; D. G. Ireland; B. S. Ishkhanov; E. L. Isupov; H. S. Jo; K. Joo; S. Joosten; D. Keller; M. Khandaker; A. Kim; W. Kim; A. Klein; F. J. Klein; V. Kubarovsky; S. V. Kuleshov; K. Livingston; H. Y. Lu; I. J. D. MacGregor; B. McKinnon; M. Mirazita; V. Mokeev; R. A. Montgomery; A Movsisyan; C. Munoz Camacho; P. Nadel-Turonski; L. A. Net; I. Niculescu; M. Osipenko; A. I. Ostrovidov; K. Park; E. Pasyuk; S. Pisano; O. Pogorelko; J. W. Price; S. Procureur; M. Ripani; A. Rizzo; G. Rosner; P. Rossi; P. Roy; F. Sabatie; C. Salgado; D. Schott; R. A. Schumacher; E. Seder; A. Simonyan; Iu. Skorodumina; D. Sokhan; N. Sparveris; I. I. Strakovsky; S. Strauch; V. Sytnik; Ye Tian; S. Tkachenko; M. Ungaro; E. Voutier; N. K. Walford; X. Wei; L. B. Weinstein; M. H. Wood; N. Zachariou; L. Zana; J. Zhang; Z. W. Zhao; I. Zonta

    2015-06-01T23:59:59.000Z

    We present the final results for the deuteron spin structure functions obtained from the full data set collected with Jefferson Lab's CLAS in 2000-2001. Polarized electrons with energies of 1.6, 2.5, 4.2 and 5.8 GeV were scattered from deuteron ($^{15}$ND$_3$) targets, dynamically polarized along the beam direction, and detected with CLAS. From the measured double spin asymmetry, the virtual photon absorption asymmetry $A_1^d$ and the polarized structure function $g_1^d$ were extracted over a wide kinematic range (0.05 GeV$^2 < Q^2 <$ 5 GeV$^2$ and 0.9 GeV $< W <$ 3 GeV). We use an unfolding procedure and a parametrization of the corresponding proton results to extract from these data the polarized structure functions $A_1^n$ and $g_1^n$ of the (bound) neutron, which are so far unknown in the resonance region, $W < 2$ GeV. We compare our final results, including several moments of the deuteron and neutron spin structure functions, with various theoretical models and expectations as well as parametrizations of the world data. The unprecedented precision and dense kinematic coverage of these data can aid in future extractions of polarized parton distributions, tests of perturbative QCD predictions for the quark polarization at large $x$, a better understanding of quark-hadron duality, and more precise values for higher-twist matrix elements in the framework of the Operator Product Expansion.

  15. Determination of structure and phase transition of light element nanocomposites in mesoporous silica: case study of NH3BH3 in MCM-41

    SciTech Connect (OSTI)

    Kim, Hyun Jeong; Karkamkar, Abhijeet J.; Autrey, Thomas; Chupas, Peter; Proffen, Thomas E.

    2009-09-30T23:59:59.000Z

    The structure of ammonia borane (AB), NH3BH3, infused in mesoporous silica MCM-41 and its evolution over the temperature range of 80 to 300 K was investigated using the atomic pair distribution function (PDF) analysis of synchrotron X-ray powder diffraction data in order to understand the origin of improved dehydrogenation properties of the system. Our study shows how X-ray PDF analysis can be used to elucidate the structure of light guest species loaded in mesoporous silica materials despite of its low scattering power of composed elements (N, B, and H) compared to its host (SiO2). PDF analyses of two AB-loaded compositions with weight ratio AB:MCM-41=1:1 and 3:1 provide a strong evidence that AB aggregate, previously found in AB:MCM-41?1:1 samples, is same species as neat AB. For both of them an orthorhombic to tetragonal structural phase transition occurs at 225 K on warming. On the other hand, AB residing inside meso-pores, which is found in AB:MCM-41=1:2 sample, does not undergo such phase transition. It rather stays in tetragonal phase over a wide temperature range of 110 to 240 K and starts to lose structural correlation above 240 K. This strongly suggests that nano-confinement of AB inside meso-pores stabilizes high temperature tetragonal phase at much lower temperature. These results provide important clues to two critical questions: why nan-compositions of AB leads dehydrogenation to lower temperature and why the neat AB like propoerties are recovered at high AB loading samples. This work was supported by the US Department of Energy Office of Basic Energy Sciences, Chemical Sciences program. Pacific Northwest National Laboratory is operated by Battelle for the US Department of Energy.

  16. Synthesis and X-ray crystal structure determination of N-p-methylphenyl-4-benzoyl-3,4-diphenyl-2-azetidinone

    SciTech Connect (OSTI)

    Kabak, Mehmet, E-mail: kabak@eng.ankara.edu.tr [University of Ankara, Department of Engineering Physics, Faculty of Engineering (Turkey); Senoez, Huelya [Hacettepe University, Faculty of Sciences, Department of Chemistry (Turkey); Elmali, Ayhan [University of Ankara, Department of Engineering Physics, Faculty of Engineering (Turkey); Adar, Vildan [Hacettepe University, Faculty of Sciences, Department of Chemistry (Turkey); Svoboda, Ingrid [Darmstadt University of Technology, Institute of Material Science (Germany); Dusek, Michal; Fejfarova, Karla [Institute of Physics (Czech Republic)

    2010-12-15T23:59:59.000Z

    The title compound, C{sub 29}H{sub 23}NO{sub 2}, has been characterized by single-crystal X-ray diffraction at two different temperatures (303 K and 120 K) and wavelengths (MoK{sub {alpha}} and CuK{sub {alpha}}). The non-centrosymmetric hexagonal crystal structure contains four-membered planar {beta}-lactam ring with an unusually long C-C bond. The {beta}-lactam ring is almost planar.

  17. Global Structure of a Three-Way Junction in a Phi29 Packaging RNA Dimer Determined Using Site-Directed Spin Labeling

    SciTech Connect (OSTI)

    Zhang, Xiaojun; Tung, Chang-Shung; Sowa, Glenna; Hatmal, Ma'mon M.; Haworth, Ian S.; Qin, Peter Z.

    2012-02-08T23:59:59.000Z

    The condensation of bacteriophage phi29 genomic DNA into its preformed procapsid requires the DNA packaging motor, which is the strongest known biological motor. The packaging motor is an intricate ring-shaped protein/RNA complex, and its function requires an RNA component called packaging RNA (pRNA). Current structural information on pRNA is limited, which hinders studies of motor function. Here, we used site-directed spin labeling to map the conformation of a pRNA three-way junction that bridges binding sites for the motor ATPase and the procapsid. The studies were carried out on a pRNA dimer, which is the simplest ring-shaped pRNA complex and serves as a functional intermediate during motor assembly. Using a nucleotide-independent labeling scheme, stable nitroxide radicals were attached to eight specific pRNA sites without perturbing RNA folding and dimer formation, and a total of 17 internitroxide distances spanning the three-way junction were measured using Double Electron-Electron Resonance spectroscopy. The measured distances, together with steric chemical constraints, were used to select 3662 viable three-way junction models from a pool of 65 billion. The results reveal a similar conformation among the viable models, with two of the helices (HT and HL) adopting an acute bend. This is in contrast to a recently reported pRNA tetramer crystal structure, in which HT and HL stack onto each other linearly. The studies establish a new method for mapping global structures of complex RNA molecules, and provide information on pRNA conformation that aids investigations of phi29 packaging motor and developments of pRNA-based nanomedicine and nanomaterial.

  18. Sco X-1 and Cyg X-1: Determination of Strength and Structure of Magnetic Field in the Nearest Environment of Accreting Compact Stars

    E-Print Network [OSTI]

    Yu. N. Gnedin; N. A. Silant'ev; L. G. Titarchuk

    2002-07-30T23:59:59.000Z

    We estimated the magnetic field strength of compact stars in X-ray binaries Sco X-1 and Cyg X-1, via various methods of determination of magnetic fields. For Sco X-1 we used three independent methods. One of them is based on the correct account of the Faraday rotation of polarization plane in the process of electron scattering of X-rays from accreting neutron stars. Numerical calculations are made with use of first X-rays polarimetric data presented by Long et al. (1979). Other original method of determing the magnetic field developed by Titarchuk at al. (2001) is based on observed quasi-periodic oscillations (QPO) frequencies in X-ray binaries that can be considered as magnetoacoustic oscillations of boundary layer near a neutron star. The optical polarimetric data obtained in 70-th have been also used for estimation of magnetic field of the neutron star in Sco X-1 and of nearest environment around the black hole in Cyg X-1.

  19. Evolution of Substrate Specificity within a Diverse Family of [beta/alpha]-Barrel-fold Basic Amino Acid Decarboxylases X-ray Structure Determination of Enzymes with Specificity for L-Arginine and Carboxynorspermidine

    SciTech Connect (OSTI)

    Deng, Xiaoyi; Lee, Jeongmi; Michael, Anthony J.; Tomchick, Diana R.; Goldsmith, Elizabeth J.; Phillips, Margaret A. (Sungkyunkwan); (UTSMC)

    2010-08-26T23:59:59.000Z

    Pyridoxal 5{prime}-phosphate (PLP)-dependent basic amino acid decarboxylases from the {beta}/{alpha}-barrel-fold class (group IV) exist in most organisms and catalyze the decarboxylation of diverse substrates, essential for polyamine and lysine biosynthesis. Herein we describe the first x-ray structure determination of bacterial biosynthetic arginine decarboxylase (ADC) and carboxynorspermidine decarboxylase (CANSDC) to 2.3- and 2.0-{angstrom} resolution, solved as product complexes with agmatine and norspermidine. Despite low overall sequence identity, the monomeric and dimeric structures are similar to other enzymes in the family, with the active sites formed between the {beta}/{alpha}-barrel domain of one subunit and the {beta}-barrel of the other. ADC contains both a unique interdomain insertion (4-helical bundle) and a C-terminal extension (3-helical bundle) and it packs as a tetramer in the asymmetric unit with the insertions forming part of the dimer and tetramer interfaces. Analytical ultracentrifugation studies confirmed that the ADC solution structure is a tetramer. Specificity for different basic amino acids appears to arise primarily from changes in the position of, and amino acid replacements in, a helix in the {beta}-barrel domain we refer to as the 'specificity helix.' Additionally, in CANSDC a key acidic residue that interacts with the distal amino group of other substrates is replaced by Leu{sup 314}, which interacts with the aliphatic portion of norspermidine. Neither product, agmatine in ADC nor norspermidine in CANSDC, form a Schiff base to pyridoxal 5{prime}-phosphate, suggesting that the product complexes may promote product release by slowing the back reaction. These studies provide insight into the structural basis for the evolution of novel function within a common structural-fold.

  20. Atmospheric structure determined from satellite data

    E-Print Network [OSTI]

    Knight, Keith Shelburne

    1978-01-01T23:59:59.000Z

    , and the cross section over the Canada region 12 Synoptic conditions and locations of grid points, soundings, and the cross section over the western United States region. 13 Profiles of the average difference and standard deviation of the differences... and 500 mb over the Canada region. 47 Charts of dew-point temperatvre and dew point difference ( C) at 850 and 700 mb over the Cariobean region. . . . . . . . . . . . . . ~ 49 Charts of dew-point temperature and dew point difference (vC) at 500 mb...

  1. Structural determinants of Mexican American intermarriage

    E-Print Network [OSTI]

    Anderson, Robert Niel

    1992-01-01T23:59:59.000Z

    (the distribution of population members among various sustenance activities), it is easily adapted to measure the distribution of 17 persons among status categories in a population. The M6 is superior to other measures of diversity such as the M1... (7500) Stockton (8120) Vallejo-Fairfield-Napa (8720) Visalia-Tulare-Porterville (8780) Yuba City (9340) Colorado Springs (1720) Denver-Boulder (2080) Fort Collins (2670) Greeley (3060) Pueblo (6560) Mean Standard Deviation State AZ AZ CA...

  2. Structural determinants of Mexican American intermarriage 

    E-Print Network [OSTI]

    Anderson, Robert Niel

    1992-01-01T23:59:59.000Z

    . 1986. "Patterns of ethnic marriage in the United States. " Social Forces 65:202-223. Arce, Carlos H. , and Armando Abney-Guardado. 1982. "Demographic and cultural correlates of Chicano intermarriage. " California Sociologist 5:41-57. Bean, Frank D...

  3. The structural determinants of media contagion

    E-Print Network [OSTI]

    Marlow, Cameron Alexander, 1977-

    2005-01-01T23:59:59.000Z

    Informal exchanges between friends, family and acquaintances play a crucial role in the dissemination of news and opinion. These casual interactions are embedded in a network of communication that spans our society, allowing ...

  4. Team Assembly Mechanisms Determine Collaboration Network

    E-Print Network [OSTI]

    Kuzmanovic, Aleksandar

    Team Assembly Mechanisms Determine Collaboration Network Structure and Team Performance Roger the mechanisms by which creative teams self-assemble determine the structure of these collaboration networks. We propose a model for the self-assembly of creative teams that has its basis in three parameters: team size

  5. CX-008738: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Determination of Microstructure and Chemical State Changes in Ion-Irradiated Fuels and Structural Components with a High Kinetic Energy Electron Detector – Illinois Institute of Technology CX(s) Applied: B3.6 Date: 05/22/2012 Location(s): Idaho Offices(s): Idaho Operations Office

  6. TOPSAN: a collaborative annotation environment for structural genomics.

    E-Print Network [OSTI]

    Weekes, Dana; Krishna, S; Bakolitsa, Constantina; Wilson, Ian A; Godzik, Adam; Wooley, John

    2010-01-01T23:59:59.000Z

    environment for structural genomics Dana Weekes 1† , S Srihigh-throughput structural genomics centers, despite theirbeing determined by structural genomics centers and high-

  7. CX-005428: Categorical Exclusion Determination | Department of...

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

    Determination Improved Structure and Fabrication of Large High-Power Kinetic Hydropower System Rotors -Year 2 CX(s) Applied: A9, B3.1, B5.1 Date: 03172011 Location(s):...

  8. CX-003728: Categorical Exclusion Determination | Department of...

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

    Determination Improved Structure and Fabrication of Large, High-Power Kinetic Hydropower System Rotors - Year 2 CX(s) Applied: A9, B3.1, B5.1 Date: 09162010 Location(s):...

  9. CX-003713: Categorical Exclusion Determination | Department of...

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

    CX-003713: Categorical Exclusion Determination Validation of Coupled Models and Optimization of Materials for Offshore Wind Structures CX(s) Applied: A9, B3.1, B3.3, B3.6 Date:...

  10. CX-002373: Categorical Exclusion Determination | Department of...

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

    CX-002373: Categorical Exclusion Determination Validation of Coupled Models and Optimization of Materials for Offshore Wind Structures CX(s) Applied: B3.1, A9 Date: 05132010...

  11. CX-009425: Categorical Exclusion Determination | Department of...

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

    Categorical Exclusion Determination Partial Validation of Coupled Models and Optimization of Materials for Offshore Wind Structures CX(s) Applied: B3.3, B3.16, B5.18 Date:...

  12. CX-004369: Categorical Exclusion Determination | Department of...

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

    CX-004369: Categorical Exclusion Determination Validation of Coupled Models and Optimization of Materials for Offshore Wind Structures CX(s) Applied: A9, B3.1, B3.6 Date: 11...

  13. Determining solar abundances using helioseismology

    E-Print Network [OSTI]

    H. M. Antia; Sarbani Basu

    2006-02-28T23:59:59.000Z

    The recent downward revision of solar photospheric abundances of Oxygen and other heavy elements has resulted in serious discrepancies between solar models and solar structure as determined through helioseismology. In this work we investigate the possibility of determining the solar heavy-element abundance without reference to spectroscopy by using helioseismic data. Using the dimensionless sound-speed derivative in the solar convection zone, we find that the heavy element abundance, Z, of 0.0172 +/- 0.002, which is closer to the older, higher value of the abundances.

  14. Structuring Structural Operational

    E-Print Network [OSTI]

    Mousavi, Mohammad

    aan de Technische Universiteit Eindhoven, op gezag van de Rector Magnificus, prof.dr.ir. C.J. van.A. Reniers CIP­DATA LIBRARY TECHNISCHE UNIVERSITEIT EINDHOVEN Mousavi, MohammadReza Structuring Structural Operational Semantics / MohammadReza Mousavi. ­ Eindhoven : Technische Universiteit Eindhoven, 2005

  15. Structuring Structural Operational

    E-Print Network [OSTI]

    Reniers, Michel

    aan de Technische Universiteit Eindhoven, op gezag van de Rector Magnificus, prof.dr.ir. C.J. van.A. Reniers CIP-DATA LIBRARY TECHNISCHE UNIVERSITEIT EINDHOVEN Mousavi, MohammadReza Structuring Structural Operational Semantics / MohammadReza Mousavi. - Eindhoven : Technische Universiteit Eindhoven, 2005

  16. Magnesium substitutions in rare-earth metal germanides with the Gd5Si4 type. Synthesis, structure determination and magnetic properties of RE5-xMgxGe4 (RE=Gd-Tm, Lu and Y)

    SciTech Connect (OSTI)

    Sarrao, J L [Los Alamos National Laboratory; Thompson, Joe D [Los Alamos National Laboratory; Tobash, P H [UNIV. OF DE; Bobev, S [UNIV. OF DE

    2009-01-01T23:59:59.000Z

    A series of magnesium-substituted rare-earth metal germanides with a general formula RE{sub 5-x}Mg{sub x}Ge{sub 4} (x {approx} 1.0-2.3; RE =Gd-Tm, Lu, Y) have been synthesized by high-temperature reactions and structurally characterized by single-crystal X-ray diffraction. These compounds crystallize with the common Gd{sub 5}Si{sub 4} type in the orthorhombic space group Pnma (No. 62; Z =4; Pearson's code oP36) and do not appear to undergo temperature-induced crystallographic phase transitions down to 120 K. Replacing rare-earth metal atoms with Mg, up to nearly 45 % at., reduces the valence electron count and is clearly expressed in the subtle changes of the Ge-Ge and metal-metal bonding. Magnetization measurements as a function of the temperature and the applied field reveal complex magnetic structures at cryogenic temperatures, and Curie-Weiss paramagnetic behavior at higher temperatures. The observed local moment magnetism is consistent with RE+ ground states in all cases. In the magnetically ordered phases, the magnetization cannot reach saturation in fields up to 50 kOe. The structural trends across the series and the variations of hte magnetic properties as a function of the Mg content are also discussed. KEYWORDS: Rare-earth intermetallics, germanides, crystal structure,Gd{sub 5}Si{sub 4} type.

  17. EMPOWERING DIGITAL SELF DETERMINATION

    E-Print Network [OSTI]

    Das, Rhiju

    : Communication and Digital Media 2. Data Context and Digital Personas 3. Personal Data: Use, ReuseEMPOWERING DIGITAL SELF DETERMINATION Symposium Summary Stanford University, Summer 2012 #12;#12;EMPOWERING DIGITAL SELF DETERMINATION Symposium, Stanford University, CA Summer, 2012 210 Panama Street

  18. Temperature determination using pyrometry

    DOE Patents [OSTI]

    Breiland, William G. (Albuquerque, NM); Gurary, Alexander I. (Bridgewater, NJ); Boguslavskiy, Vadim (Princeton, NJ)

    2002-01-01T23:59:59.000Z

    A method for determining the temperature of a surface upon which a coating is grown using optical pyrometry by correcting Kirchhoff's law for errors in the emissivity or reflectance measurements associated with the growth of the coating and subsequent changes in the surface thermal emission and heat transfer characteristics. By a calibration process that can be carried out in situ in the chamber where the coating process occurs, an error calibration parameter can be determined that allows more precise determination of the temperature of the surface using optical pyrometry systems. The calibration process needs only to be carried out when the physical characteristics of the coating chamber change.

  19. Data mining for structure type prediction

    E-Print Network [OSTI]

    Tibbetts, Kevin (Kevin Joseph)

    2004-01-01T23:59:59.000Z

    Determining the stable structure types of an alloy is critical to determining many properties of that material. This can be done through experiment or computation. Both methods can be expensive and time consuming. Computational ...

  20. Robust Growth Determinants

    E-Print Network [OSTI]

    Doppelhofer, Gernot; Weeks, Melvyn

    2011-01-31T23:59:59.000Z

    This paper investigates the robustness of determinants of economic growth in the presence of model uncertainty, parameter heterogeneity and outliers. The robust model averaging approach introduced in the paper uses a flexible and parsimonious...

  1. Spin dependent parton distributions and structure functions

    SciTech Connect (OSTI)

    W. Bentz; I. C. Cloet; T. Ito; A. W. Thomas; K. Yazaki

    2007-09-10T23:59:59.000Z

    Nuclear parton distributions and structure functions are determined in an effective chiral quark theory. We also discuss an extension of our model to fragmentation functions.

  2. Structural Genomics and Structural Proteomics: A Global Perspective

    E-Print Network [OSTI]

    Sussman, Joel L.

    -genome information and the success of high-throughput (HTP) methods in DNA sequencing. It was envisaged that similar HTP methods could be applied to deter- mining the 3-D structures of "all" the proteins (the "proteome, automated technologies for implementing a HTP pipeline approach to structure determination; a focus on novel

  3. Determining Reactor Neutrino Flux

    E-Print Network [OSTI]

    Jun Cao

    2012-03-08T23:59:59.000Z

    Flux is an important source of uncertainties for a reactor neutrino experiment. It is determined from thermal power measurements, reactor core simulation, and knowledge of neutrino spectra of fuel isotopes. Past reactor neutrino experiments have determined the flux to (2-3)% precision. Precision measurements of mixing angle $\\theta_{13}$ by reactor neutrino experiments in the coming years will use near-far detector configurations. Most uncertainties from reactor will be canceled out. Understanding of the correlation of uncertainties is required for $\\theta_{13}$ experiments. Precise determination of reactor neutrino flux will also improve the sensitivity of the non-proliferation monitoring and future reactor experiments. We will discuss the flux calculation and recent progresses.

  4. Distributed Approaches for Determination of Reconfiguration Algorithm Termination

    E-Print Network [OSTI]

    Lai, Hong-jian

    Distributed Approaches for Determination of Reconfiguration Algorithm Termination Pinak Tulpule architecture was used as globally shared memory structure for detection of algorithm termination. This paper of algorithm termination. Keywords--autonomous agent-based reconfiguration, dis- tributed algorithms, shipboard

  5. Individual and structural explanations of wage determination among employed women

    E-Print Network [OSTI]

    Colberg, Edli Erwin

    1983-01-01T23:59:59.000Z

    APPENDIX I. THE TREATMENT% OF INDEPENDENT VARIABLES IN THE MULTIPLE DUMMY ~SION ANALYSIS. . . . . . . . . . . . . . . . 102 APPENDIX II. THE MEASUREMENT OF LABOR FORCE ATTACHMENT. . 107 110 LIST OF TABLES TABLE 1. Hourly Wages by Formal Education.... ? tically over the past four decades. The rate of female parti- cipation in the labor force has more than doubled, increasing from approximately twenty-five percent in 1940 to over fifty per- cent in 1980 (U. S. Department of Labor, 1980). A corresponding...

  6. Protein structure and evolutionary history determine sequence space topology

    E-Print Network [OSTI]

    Shakhnovich, Boris E.; Deeds, Eric J.; Delisi, Charles; Shakhnovich, Eugene

    2005-01-01T23:59:59.000Z

    ; Grzybowski et al. 2002) for the study of protein fold- ing and prediction of ligand-binding energies. For this study, we use the trace of the second order of the contact matrix normalized by chain length as a simplest approxi- mation for designability... underlying both neofunc- tionalization and the potential development of resistance to emerging diseases. These results provide an example of how fun- damental physical principles can be statistically predictive in the biological Universe of protein folds...

  7. Protein Structure Determination from Pseudocontact Shifts Using ROSETTA

    E-Print Network [OSTI]

    Baker, David

    , Australian National University, Canberra, ACT 0200, Australia Received 21 October 2011; received in revised and Molecular Biosciences, University of Queensland, Brisbane, QLD 4072, Australia 2 Department of Biochemistry

  8. A VSP transformation technique for the determination of subsurface structure

    E-Print Network [OSTI]

    Malloy, Jeffrey Edward

    1985-01-01T23:59:59.000Z

    offset is 305 m, and reflector depth is 3000 m. . . . . . . . . . . . . . . . . , . . . . . . . 13 5 Plot showing normalized coverage as a function of dip of the reflector. Source offset is 305 m. Reflector depth is 2000 m, 6 Plot showing normalized... Geometry showing significance of as. 10 Physical significance of angle uo. 20 22 11 Stacking fold vs. bin offset for a reflector at 2000 m with a dip of 15'. Source offset is 305 m. 23 12 Stack'ing fold vs. bin offset for a reflector at 2000 m with a...

  9. Computing Approximate Solutions of the Protein Structure Determination Problem

    E-Print Network [OSTI]

    Dal Palù, Alessandro

    dovier@dimi.uniud.it 3 Dept. of Computer Science, New Mexico State University epontell of Computer Science at New Mexico State University, where he also serves as the Di- rector of the Knowledge in the context of energy landscape studies (24; 17; 2; 22; 1). Commonly, Monte Carlo simulations, based

  10. Integral membrane protein structure determination using pseudocontact shifts

    E-Print Network [OSTI]

    Crick, Duncan J.; Wang, Jue X.; Graham, Bim; Swarbrick, James D.; Mott, Helen R.; Nietlispach, Daniel

    2015-01-22T23:59:59.000Z

    step in Carte- sian space using only empirically-derived restraints, fol- lowed by simulated annealing steps in torsion angle space using all empirical and experimental restraints. Simulated annealing steps consisted of 200 ps dynamics at 10,000 K... ) Engineering of a bis-chelator motif into a protein a-helix for rigid lanthanide binding and paramag- netic NMR spectroscopy. Chem Commun 47:7368–7370 Tolman JR, Flanagan JM, Kennedy MA, Prestegard JH (1995) Nuclear magnetic dipole interactions in field...

  11. Computing Approximate Solutions of the Protein Structure Determination Problem using

    E-Print Network [OSTI]

    Dal Palù, Alessandro

    dovier@dimi.uniud.it 3 Dept. of Computer Science, New Mexico State University epontell dramatically. In these cases, constraint programming can be exploited to generate suboptimal candi- dates by mining the protein data bank, e.g., a collection of rotamers, can be introduced to provide additional

  12. COMPUTATIONAL METHODS FOR MOLEUCLAR STRUCTURE DETERMINATION: THEORY AND TECHNIQUE

    E-Print Network [OSTI]

    Lester, W.A.

    2010-01-01T23:59:59.000Z

    bases + RHF + UHF G 78 (DEC-VAX) G 76 + direct minimizationby MP2, MP3 G 80 (DEC-VAX) G 78 + CID + CISD + archivestored! HARTREE FOCK TIMES (VAX) N=40 15 min ST0-3G 4-31G 6-

  13. Evolutionary Molecular Structure Determination Using Grid-Enabled Data Mining

    E-Print Network [OSTI]

    Miller, Russ

    exploit the grid's ability to present the user with a computational infrastructure that will allow as 1000 unique non- Hydrogen atoms, which could not be solved by traditional reciprocal-space routines

  14. Structure Determination and Functional Analysis of a Chromate...

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

    terms of rational design principles for the use of enzymes in chromate and uranyl bioremediation. Citation: Jin H, Y Zhang, GW Buchko, SM Varnum, H Robinson, TC Squier, and PE...

  15. Sequence and Structural Determinants of Cu, Zn Superoxide Dismutase Aggregation

    E-Print Network [OSTI]

    Dokholyan, Nikolay V.

    , 2 microglobu- lin, and tau protein, have been shown to form amyloid fibrils in vitro (Thirumalai et dynamics simula- tion; protein misfolding; domain- swapping INTRODUCTION The formation of protein of native proteins to amyloids.4,5 Peptides corresponding to sequence fragments of amyloid-forming

  16. Structure determination of bromotricarbonyl([eta]-cyclopentadienyl)molybdenum(II)

    E-Print Network [OSTI]

    Boyle, T. J.; Takusagawa, Fusao; Heppert, J. A.

    1990-01-01T23:59:59.000Z

    -2701/90/050892-02S03.00 © 1990 International Union of Crystallography TIMOTHY J. BOYLE, FUSAO TAKUSAGAWA AND JOSEPH A. HEPPERT 893 crIo. The index range was - 8 < h < 8, 0 < k < 11, - 12 < / < 0. Two reflections were monitored after...

  17. STITCHER: Dynamic assembly of likely amyloid and prion beta-structures from secondary structure predictions

    E-Print Network [OSTI]

    Bryan, Allen W.

    The supersecondary structure of amyloids and prions, proteins of intense clinical and biological interest, are difficult to determine by standard experimental or computational means. In addition, significant conformational ...

  18. Y{sub 2}MoSe{sub 3}O{sub 12} and Y{sub 2}MoTe{sub 3}O{sub 12}: Solid-state synthesis, structure determination, and characterization of two new quaternary mixed metal oxides containing asymmetric coordination environment

    SciTech Connect (OSTI)

    Bang, Seong-eun; Pan, Zhi; Kim, Yeong Hun; Lee, Dong Woo; Ok, Kang Min, E-mail: kmok@cau.ac.kr

    2013-12-15T23:59:59.000Z

    Two new quaternary yttrium molybdenum selenium/tellurium oxides, Y{sub 2}MoSe{sub 3}O{sub 12} and Y{sub 2}MoTe{sub 3}O{sub 12} have been prepared by standard solid-state reactions using Y{sub 2}O{sub 3}, MoO{sub 3}, and SeO{sub 2} (or TeO{sub 2}) as reagents. Single-crystal X-ray diffraction was used to determine the crystal structures of the reported materials. Although both of the materials contain second-order Jahn–Teller (SOJT) distortive cations and are stoichiometrically similar, they reveal different structural features: while Y{sub 2}MoSe{sub 3}O{sub 12} shows a three-dimensional framework consisting of YO{sub 8}, MoO{sub 6}, and SeO{sub 3} groups, Y{sub 2}MoTe{sub 3}O{sub 12} exhibits a layered structure composed of YO{sub 8}, MoO{sub 4}, TeO{sub 3}, and TeO{sub 4} polyhedra. With the Mo{sup 6+} cations in Y{sub 2}MoSe{sub 3}O{sub 12}, a C{sub 3}-type intraoctahedral distortion toward a face is observed, in which the direction of the out-of-center distortion for Mo{sup 6+} is away from the oxide ligand linked to a Se{sup 4+} cation. The Se{sup 4+} and Te{sup 4+} cations in both materials are in asymmetric coordination environment attributed to the lone pairs. Elemental analyses, infrared spectroscopy, thermal analyses, intraoctahedral distortions, and dipole moment calculations for the compounds are also presented. - Graphical abstract: Y{sub 2}MoSe{sub 3}O{sub 12} reveals a three-dimensional framework consisting of YO{sub 8}, MoO{sub 6}, and SeO{sub 3} polyhedra, whereas Y{sub 2}MoTe{sub 3}O{sub 12} exhibits a layered structure composed of YO{sub 8}, MoO{sub 4}, TeO{sub 3}, and TeO{sub 4} groups. - Highlights: • Two new selenite and tellurite (Y{sub 2}MoQ{sub 3}O{sub 12}; Q=Se and Te) are synthesized. • Y{sub 2}MoQ{sub 3}O{sub 12} contain second-order Jahn–Teller distortive cations in asymmetric environments. • The intra-octahedral distortion of the Mo{sup 6+} is influenced by the Se{sup 4+}.

  19. Ninebrane structures

    E-Print Network [OSTI]

    Hisham Sati

    2015-01-16T23:59:59.000Z

    String structures in degree four are associated with cancellation of anomalies of string theory in ten dimensions. Fivebrane structures in degree eight have recently been shown to be associated with cancellation of anomalies associated to the NS5-brane in string theory as well as the M5-brane in M-theory. We introduce and describe "Ninebrane structures" in degree twelve and demonstrate how they capture some anomaly cancellation phenomena in M-theory. Along the way we also define certain variants, considered as intermediate cases in degree nine and ten, which we call "2-Orientation" and "2-Spin structures", respectively. As in the lower degree cases, we also discuss the natural twists of these structures and characterize the corresponding topological groups associated to each of the structures, which likewise admit refinements to differential cohomology.

  20. Determining Pregnancy in Cattle.

    E-Print Network [OSTI]

    Sorensen, A. M. Jr.; Beverly, J. R.

    1968-01-01T23:59:59.000Z

    . This should not upset the pal- pator. An indication of rectum damage is a sand- paper or gritty feeling. In this case, the mucosa lining the rectum has been rubbed off in the palpation pro- cess. It is best to stop further palpation when this occurs. A... good land- mark, figure 2. After locating the cervix, the pal- pator can move forward to the uterus to determine pregnancy. The paunch, located directly forward and to the left, may feel like the end of a football and be rather soft and mushy...

  1. Determinants of Meme Popularity

    E-Print Network [OSTI]

    Gleeson, James P; Baños, Raquel A; Moreno, Yamir

    2015-01-01T23:59:59.000Z

    Online social media have greatly affected the way in which we communicate with each other. However, little is known about what are the fundamental mechanisms driving dynamical information flow in online social systems. Here, we introduce a generative model for online sharing behavior and analytically show, using techniques from mathematical population genetics, that competition between memes for the limited resource of user attention leads to a type of self-organized criticality, with heavy-tailed distributions of meme popularity: a few memes "go viral" but the majority become only moderately popular. The time-dependent solutions of the model are shown to fit empirical micro-blogging data on hashtag usage, and to predict novel scaling features of the data. The presented framework, in contrast to purely empirical studies or simulation-based models, clearly distinguishes the roles of two distinct factors affecting meme popularity: the memory time of users and the connectivity structure of the social network.

  2. Significant Radionuclides Determination

    SciTech Connect (OSTI)

    Jo A. Ziegler

    2001-07-31T23:59:59.000Z

    The purpose of this calculation is to identify radionuclides that are significant to offsite doses from potential preclosure events for spent nuclear fuel (SNF) and high-level radioactive waste expected to be received at the potential Monitored Geologic Repository (MGR). In this calculation, high-level radioactive waste is included in references to DOE SNF. A previous document, ''DOE SNF DBE Offsite Dose Calculations'' (CRWMS M&O 1999b), calculated the source terms and offsite doses for Department of Energy (DOE) and Naval SNF for use in design basis event analyses. This calculation reproduces only DOE SNF work (i.e., no naval SNF work is included in this calculation) created in ''DOE SNF DBE Offsite Dose Calculations'' and expands the calculation to include DOE SNF expected to produce a high dose consequence (even though the quantity of the SNF is expected to be small) and SNF owned by commercial nuclear power producers. The calculation does not address any specific off-normal/DBE event scenarios for receiving, handling, or packaging of SNF. The results of this calculation are developed for comparative analysis to establish the important radionuclides and do not represent the final source terms to be used for license application. This calculation will be used as input to preclosure safety analyses and is performed in accordance with procedure AP-3.12Q, ''Calculations'', and is subject to the requirements of DOE/RW-0333P, ''Quality Assurance Requirements and Description'' (DOE 2000) as determined by the activity evaluation contained in ''Technical Work Plan for: Preclosure Safety Analysis, TWP-MGR-SE-000010'' (CRWMS M&O 2000b) in accordance with procedure AP-2.21Q, ''Quality Determinations and Planning for Scientific, Engineering, and Regulatory Compliance Activities''.

  3. Crystal structure refinement with SHELXL

    SciTech Connect (OSTI)

    Sheldrick, George M., E-mail: gsheldr@shelx.uni-ac.gwdg.de [Department of Structural Chemistry, Georg-August Universität Göttingen, Tammannstraße 4, Göttingen 37077 (Germany)

    2015-01-01T23:59:59.000Z

    New features added to the refinement program SHELXL since 2008 are described and explained. The improvements in the crystal structure refinement program SHELXL have been closely coupled with the development and increasing importance of the CIF (Crystallographic Information Framework) format for validating and archiving crystal structures. An important simplification is that now only one file in CIF format (for convenience, referred to simply as ‘a CIF’) containing embedded reflection data and SHELXL instructions is needed for a complete structure archive; the program SHREDCIF can be used to extract the .hkl and .ins files required for further refinement with SHELXL. Recent developments in SHELXL facilitate refinement against neutron diffraction data, the treatment of H atoms, the determination of absolute structure, the input of partial structure factors and the refinement of twinned and disordered structures. SHELXL is available free to academics for the Windows, Linux and Mac OS X operating systems, and is particularly suitable for multiple-core processors.

  4. Deployable structures

    E-Print Network [OSTI]

    Hernández Merchan, Carlos Henrique

    1987-01-01T23:59:59.000Z

    This thesis has the purpose of describing the meaning and applications of deployable structures (making emphasis in the scissor-hinged and sliding mechanisms.) and the development of new geometries, details, and mechanisms ...

  5. Determining the neutrino mass hierarchy

    SciTech Connect (OSTI)

    Parke, Stephen J.; /Fermilab

    2006-07-01T23:59:59.000Z

    In this proceedings I review the physics that future experiments will use to determine the neutrino mass hierarchy.

  6. Protein NMR Structures Refined with Rosetta Have Higher Accuracy Relative to Corresponding Xray Crystal Structures

    E-Print Network [OSTI]

    Baker, David

    refinement of protein NMR structures was also compared with restrained CS-Rosetta calculations. For proteins spectroscopy (NMR). While X-ray crystal structures are derived from electron density data and are often dynamics and has the advantage of not requiring crystallization. Solution NMR structure determination

  7. Structured Finance

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of ScienceandMesa del SolStrengthening a solid ... Strengthening aStructure ofof the CompleteStructure

  8. 5.841 Crystal Structure Refinement, Fall 2006

    E-Print Network [OSTI]

    Mueller, Peter

    This course in crystal structure refinement examines the practical aspects of crystal structure determination from data collection strategies to data reduction and basic and advanced refinement problems of organic and ...

  9. 5.067 Crystal Structure Refinement, Fall 2007

    E-Print Network [OSTI]

    Mueller, Peter

    This course in crystal structure refinement examines the practical aspects of crystal structure determination from data collection strategies to data reduction and basic and advanced refinement problems of organic and ...

  10. LMS-based method for damage detection applied to Phase II of Structural Health Monitoring benchmark problem 

    E-Print Network [OSTI]

    Preston, Robin Huckaby

    2006-08-16T23:59:59.000Z

    Structural Health Monitoring (SHM) is the process of monitoring the state of a structure to determine the existence, location, and degree of damage that may exist within the entire structure. A structureÂ?s health or level ...

  11. The Development of Structure Activity Relationships for Advance...

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

    * Unravel structure-property relationship from the sub-atomic to macro- composite system levels. * Determine key material parameters and their implications for...

  12. aptamer sequence structure: Topics by E-print Network

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

    sufficient information to determine 3D protein structure. Using a data-constrained maximum entropy model of the multiple sequence alignment, we identify pairs of...

  13. OPERATING TEMPERATURE WINDOWS FOR FUSION REACTOR STRUCTURAL MATERIALS

    E-Print Network [OSTI]

    California at Los Angeles, University of

    OPERATING TEMPERATURE WINDOWS FOR FUSION REACTOR STRUCTURAL MATERIALS S.J. Zinkle1 and N.M. Ghoniem reactor structural materials: four reduced-activation structural materials (oxide-dispersion- strengthened operating temperature limit of structural materials is determined by one of four factors, all of which

  14. Application of expert networks for predicting proteins secondary structure

    E-Print Network [OSTI]

    Siegelmann , Hava T

    of proteins secondary structure. We use three independent networks, one for each structure (alpha, beta to be an alternative to the determination of secondary structure by means of free energy minimization, integration of secondary structures (alpha-helix, beta- sheet, and coil) (Nishikawa, 1983; Kabsch and Sander, 1983a

  15. Structural Health Monitoring

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What'sis Taking Over Our Instagram Secretary900SteepStrengthening northernDetermination ofTest Structures

  16. Nanocrystal structures

    DOE Patents [OSTI]

    Eisler, Hans J. (Stoneham, MA); Sundar, Vikram C. (Stoneham, MA); Walsh, Michael E. (Everett, MA); Klimov, Victor I. (Los Alamos, NM); Bawendi, Moungi G. (Cambridge, MA); Smith, Henry I. (Sudbury, MA)

    2008-12-30T23:59:59.000Z

    A structure including a grating and a semiconductor nanocrystal layer on the grating, can be a laser. The semiconductor nanocrystal layer can include a plurality of semiconductor nanocrystals including a Group II-VI compound, the nanocrystals being distributed in a metal oxide matrix. The grating can have a periodicity from 200 nm to 500 nm.

  17. Nanocrystal structures

    DOE Patents [OSTI]

    Eisler, Hans J.; Sundar, Vikram C.; Walsh, Michael E.; Klimov, Victor I.; Bawendi, Moungi G.; Smith, Henry I.

    2006-12-19T23:59:59.000Z

    A structure including a grating and a semiconductor nanocrystal layer on the grating, can be a laser. The semiconductor nanocrystal layer can include a plurality of semiconductor nanocrystals including a Group II–VI compound, the nanocrystals being distributed in a metal oxide matrix. The grating can have a periodicity from 200 nm to 500 nm.

  18. CX-010689: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Generic CX Determination for Financial Assistance Awards CX(s) Applied: Unknown Date: 07/17/2013 Location(s): Illinois Offices(s): Chicago Office

  19. CX-012200: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Determination of Excess Real Property CX(s) Applied: B1.36 Date: 05/01/2014 Location(s): Colorado Offices(s): Legacy Management

  20. Superconducting structure

    DOE Patents [OSTI]

    Kwon, Chuhee (Los Alamos, NM); Jia, Quanxi (Los Alamos, NM); Foltyn, Stephen R. (Los Alamos, NM)

    2003-04-01T23:59:59.000Z

    A superconductive structure including a dielectric oxide substrate, a thin buffer layer of a superconducting material thereon; and, a layer of a rare earth-barium-copper oxide superconducting film thereon the thin layer of yttrium-barium-copper oxide, the rare earth selected from the group consisting of samarium, gadolinium, ytterbium, erbium, neodymium, dysprosium, holmium, lutetium, a combination of more than one element from the rare earth group and a combination of one or more elements from the rare earth group with yttrium, the buffer layer of superconducting material characterized as having chemical and structural compatibility with the dielectric oxide substrate and the rare earth-barium-copper oxide superconducting film is provided.

  1. Terminal structure

    DOE Patents [OSTI]

    Schmidt, Frank (Langenhagen, DE); Allais, Arnaud (Hannover, DE); Mirebeau, Pierre (Villebon sur Yvette, FR); Ganhungu, Francois (Vieux-Reng, FR); Lallouet, Nicolas (Saint Martin Boulogne, FR)

    2009-10-20T23:59:59.000Z

    A terminal structure (2) for a superconducting cable (1) is described. It consists of a conductor (2a) and an insulator (2b) that surrounds the conductor (2a), wherein the superconducting cable (1) has a core with a superconducting conductor (5) and a layer of insulation that surrounds the conductor (5), and wherein the core is arranged in such a way that it can move longitudinally in a cryostat. The conductor (2a) of the terminal structure (2) is electrically connected with the superconducting conductor (5) or with a normal conductor (6) that is connected with the superconducting conductor (5) by means of a tubular part (7) made of an electrically conductive material, wherein the superconducting conductor (5) or the normal conductor (6) can slide in the part (7) in the direction of the superconductor.

  2. Superconducting Structure

    DOE Patents [OSTI]

    Kwon, Chuhee (Los Alamos, NM); Jia, Quanxi (Los Alamos, NM); Foltyn, Stephen R. (Los Alamos, NM)

    2005-09-13T23:59:59.000Z

    A superconductive structure including a dielectric oxide substrate, a thin buffer layer of a superconducting material thereon; and, a layer of a rare earth-barium-copper oxide superconducting film thereon the thin layer of yttrium-barium-copper oxide, the rare earth selected from the group consisting of samarium, gadolinium, ytterbium, erbium, neodymium, dysprosium, holmium, lutetium, a combination of more than one element from the rare earth group and a combination of one or more elements from the rare earth group with yttrium, the buffer layer of superconducting material characterized as having chemical and structural compatibility with the dielectric oxide substrate and the rare earth-barium-copper oxide superconducting film is provided.

  3. Experimental Study of Nucleon Structure and QCD

    SciTech Connect (OSTI)

    Jian-Ping Chen

    2012-03-01T23:59:59.000Z

    Overview of Experimental Study of Nucleon Structure and QCD, with focus on the spin structure. Nucleon (spin) Structure provides valuable information on QCD dynamics. A decade of experiments from JLab yields these exciting results: (1) valence spin structure, duality; (2) spin sum rules and polarizabilities; (3) precision measurements of g{sub 2} - high-twist; and (4) first neutron transverse spin results - Collins/Sivers/A{sub LT}. There is a bright future as the 12 GeV Upgrade will greatly enhance our capability: (1) Precision determination of the valence quark spin structure flavor separation; and (2) Precision extraction of transversity/tensor charge/TMDs.

  4. GEET DUGGAL Algorithms for Determining

    E-Print Network [OSTI]

    Relationship to Gene Regulation Final Public Oral Examination Doctor of Philosophy Recent genome sequencing. Analyses from them have shown that the 3D structure of DNA may be closely linked to genome functions structure of DNA and genome function on the scale of the whole genome. Specifically, we designed algorithms

  5. First JAM results on the determination of polarized parton distributions

    SciTech Connect (OSTI)

    Accardi, Alberto [Hampton Univ., VA and JLAB, Newport News, VA (United States); Jimenez-Delgado, Pedro [JLAB, Newport News, VA (United States); Melnitchouk, Wally [JLAB, Newport News, VA (United States)

    2014-01-01T23:59:59.000Z

    The Jefferson Lab Angular Momentum (JAM) Collaboration is a new initiative to study the angular momentum dependent structure of the nucleon. First results on the determination of spin-dependent parton distribution functions at intermediate and large x from world data on polarized deep-inelastic scattering are presented. Different aspects of global QCD analysis are discussed, including the effects of nuclear structure of deuterium and {sup 3}He targets, target mass corrections and higher twist contributions to the g{sub 1} and g{sub 2} structure functions.

  6. Determination

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

    consisting of AZ road dust and soot in acetonitrile carrier solvent was sprayed onto glass coupons at very brief intervals with a high volume, low pressure pneumatic sprayer....

  7. Airfoil structure

    DOE Patents [OSTI]

    Frey, G.A.; Twardochleb, C.Z.

    1998-01-13T23:59:59.000Z

    Past airfoil configurations have been used to improve aerodynamic performance and engine efficiencies. The present airfoil configuration further increases component life and reduces maintenance by reducing internal stress within the airfoil itself. The airfoil includes a chord and a span. Each of the chord and the span has a bow being summed to form a generally ``C`` configuration of the airfoil. The generally ``C`` configuration includes a compound bow in which internal stresses resulting from a thermal temperature gradient are reduced. The structural configuration reduces internal stresses resulting from thermal expansion. 6 figs.

  8. Airfoil structure

    DOE Patents [OSTI]

    Frey, Gary A. (Poway, CA); Twardochleb, Christopher Z. (Alpine, CA)

    1998-01-01T23:59:59.000Z

    Past airfoil configurations have been used to improve aerodynamic performance and engine efficiencies. The present airfoil configuration further increases component life and reduces maintenance by reducing internal stress within the airfoil itself. The airfoil includes a chord and a span. Each of the chord and the span has a bow being summed to form a generally "C" configuration of the airfoil. The generally "C" configuration includes a compound bow in which internal stresses resulting from a thermal temperature gradient are reduced. The structural configuration reduces internal stresses resulting from thermal expansion.

  9. Method of determining glass durability

    DOE Patents [OSTI]

    Jantzen, C.M.; Pickett, J.B.; Brown, K.G.; Edwards, T.B.

    1998-12-08T23:59:59.000Z

    A process is described for determining one or more leachate concentrations of one or more components of a glass composition in an aqueous solution of the glass composition by identifying the components of the glass composition, including associated oxides, determining a preliminary glass dissolution estimator, {Delta}G{sub p}, based upon the free energies of hydration for the component reactant species, determining an accelerated glass dissolution function, {Delta}G{sub a}, based upon the free energy associated with weak acid dissociation, {Delta}G{sub a}{sup WA}, and accelerated matrix dissolution at high pH, {Delta}G{sub a}{sup SB} associated with solution strong base formation, and determining a final hydration free energy, {Delta}G{sub f}. This final hydration free energy is then used to determine leachate concentrations for elements of interest using a regression analysis and the formula log{sub 10}(N C{sub i}(g/L))=a{sub i} + b{sub i}{Delta}G{sub f}. The present invention also includes a method to determine whether a particular glass to be produced will be homogeneous or phase separated. The present invention is also directed to methods of monitoring and controlling processes for making glass using these determinations to modify the feedstock materials until a desired glass durability and homogeneity is obtained. 4 figs.

  10. Method of determining glass durability

    DOE Patents [OSTI]

    Jantzen, Carol Maryanne (Aiken, SC); Pickett, John Butler (Aiken, SC); Brown, Kevin George (Augusta, GA); Edwards, Thomas Barry (Aiken, SC)

    1998-01-01T23:59:59.000Z

    A process for determining one or more leachate concentrations of one or more components of a glass composition in an aqueous solution of the glass composition by identifying the components of the glass composition, including associated oxides, determining a preliminary glass dissolution estimator, .DELTA.G.sub.p, based upon the free energies of hydration for the component reactant species, determining an accelerated glass dissolution function, .DELTA.G.sub.a, based upon the free energy associated with weak acid dissociation, .DELTA.G.sub.a.sup.WA, and accelerated matrix dissolution at high pH, .DELTA.G.sub.a.sup.SB associated with solution strong base formation, and determining a final hydration free energy, .DELTA.G.sub.f. This final hydration free energy is then used to determine leachate concentrations for elements of interest using a regression analysis and the formula log.sub.10 (N C.sub.i (g/L))=a.sub.i +b.sub.i .DELTA.G.sub.f. The present invention also includes a method to determine whether a particular glass to be produced will be homogeneous or phase separated. The present invention is also directed to methods of monitoring and controlling processes for making glass using these determinations to modify the feedstock materials until a desired glass durability and homogeneity is obtained.

  11. Determination of Atomic Data Pertinent to the Fusion Energy Program

    SciTech Connect (OSTI)

    Reader, J.

    2013-06-11T23:59:59.000Z

    We summarize progress that has been made on the determination of atomic data pertinent to the fusion energy program. Work is reported on the identification of spectral lines of impurity ions, spectroscopic data assessment and compilations, expansion and upgrade of the NIST atomic databases, collision and spectroscopy experiments with highly charged ions on EBIT, and atomic structure calculations and modeling of plasma spectra.

  12. Categorical Exclusion (CX) Determinations By Date | Department...

    Office of Environmental Management (EM)

    (CX) Determinations By Date Categorical Exclusion (CX) Determinations By Date August 25, 2015 CX-012469: Categorical Exclusion Determination Gas Analysis Services CX(s) Applied:...

  13. Determining Cropland Share Rental Arrangements

    E-Print Network [OSTI]

    Dhuyvetter, Kevin C.; Kastens, Terry L.; Outlaw, Joe

    1999-06-23T23:59:59.000Z

    Determining Cropland Share Rental Arrangements Kevin C. Dhuyvetter, Terry L. Kastens and Joe L. Outlaw * Many crop producers rely heavily on rented land in their farming operations. The rental arrangements between landowners and producers can...

  14. CX-010776: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Advanced Test Reactor (ATR) Primary Coolant Leak Rate Determination System Equipment Replacement CX(s) Applied: B2.2 Date: 07/24/2013 Location(s): Idaho Offices(s): Nuclear Energy

  15. CX-008905: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Optimizing Accuracy of Determinations of Carbon Dioxide Storage Capacity and Permanence CX(s) Applied: A1, A9, B3.6 Date: 08/29/2012 Location(s): Wyoming Offices(s): National Energy Technology Laboratory

  16. CX-008863: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Dredging of the West Hackberry Raw Water Intake Structure CX(s) Applied: B1.3 Date: 08/14/2012 Location(s): Louisiana Offices(s): Strategic Petroleum Reserve Field Office

  17. CX-012744: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Prescott Peacock Transmission Line- Insulator Repair at 3 Structures CX(s) Applied: B1.3Date: 41851 Location(s): ArizonaOffices(s): Western Area Power Administration-Desert Southwest Region

  18. CX-006521: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Solid Oxide Fuel Cells Cathodes: Unraveling the Relationship Between Structure and Surface ChemistryCX(s) Applied: B3.6Date: 08/23/2011Location(s): Boston, MassachusettsOffice(s): Fossil Energy, National Energy Technology Laboratory

  19. CX-007141: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Electrical District 4 - Electrical District 5 - Structure ReplacementCX(s) Applied: B4.6Date: 09/01/2011Location(s): Pinal County, ArizonaOffice(s): Western Area Power Administration-Desert Southwest Region

  20. CX-011589: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Risk Assessment of Structural Integrity of Transportation Casks CX(s) Applied: B3.6 Date: 11/04/2013 Location(s): Utah Offices(s): Idaho Operations Office

  1. CX-012092: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Tucson-Apache 115-Kilovolt Transmission Line Structure Stabilization Project CX(s) Applied: B1.3 Date: 09/06/2013 Location(s): Arizona, Arizona Offices(s): Western Area Power Administration-Desert Southwest Region

  2. CX-012196: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Structure and Debris Removal from Howes and Bird's Eye View Properties CX(s) Applied: B1.23 Date: 04/30/2014 Location(s): Montana Offices(s): Bonneville Power Administration

  3. CX-008381: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Big Thompson to Flatiron 13.8 Kilovolt Transmission Line Structure Replacement CX(s) Applied: B1.3 Date: 05/09/2012 Location(s): Colorado Offices(s): Western Area Power Administration-Rocky Mountain Region

  4. CX-002644: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Photoactive, Organic-Inorganic Hybrid Porous Structures for Photocatalytic Carbon Dioxide ReductionCX(s) Applied: B3.6Date: 06/04/2010Location(s): Morgantown, West VirginiaOffice(s): Fossil Energy, National Energy Technology Laboratory

  5. CX-006605: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    West Hackenberry Raw Water Intake Structure Clear ZoneCX(s) Applied: B1.3Date: 06/29/2011Location(s): Lake Charles, LouisianaOffice(s): Strategic Petroleum Reserve Field Office

  6. CX-012674: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Selective ligands for uranyl via combinatorial peptoid libraries: A synthetic, structural, thermodynamic and computational study – University of California Berkeley CX(s) Applied: B3.6Date: 41870 Location(s): CaliforniaOffices(s): Nuclear Energy

  7. CX-003595: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Recovery Act: Detailed Structural Exploration - Crump Geyser, OregonCX(s) Applied: A9, B3.1Date: 08/27/2010Location(s): Crump Geyser, NevadaOffice(s): Energy Efficiency and Renewable Energy, Golden Field Office

  8. CX-011588: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Doubling The Life of Concrete Structures CX(s) Applied: B3.6 Date: 11/04/2013 Location(s): Idaho Offices(s): Idaho Operations Office

  9. CX-012229: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Longview-Chehalis #3 Transmission Structure Footing Repair CX(s) Applied: B1.3 Date: 06/12/2014 Location(s): Washington Offices(s): Bonneville Power Administration

  10. CX-008541: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    High Efficiency Structural Flowthrough Rotor With Active Flap Control CX(s) Applied: A9 Date: 06/12/2012 Location(s): California Offices(s): Golden Field Office

  11. CX-011561: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Structural Health Monitoring of Nuclear Spent Fuel Storage Facilities CX(s) Applied: B3.6 Date: 11/19/2013 Location(s): South Carolina Offices(s): Idaho Operations Office

  12. CX-012112: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Chehalis-Mayfield Number 1 Line Impairment Structure Replacements CX(s) Applied: B1.3 Date: 04/03/2014 Location(s): Washington Offices(s): Bonneville Power Administration

  13. CX-012072: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Archer-Cheyenne North/South 115-kilovolt Transmission Line Structure Replacement CX(s) Applied: B4.13 Date: 03/18/2014 Location(s): Wyoming Offices(s): Western Area Power Administration-Rocky Mountain Region

  14. CX-012084: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Snowy Range-Happy Jack 115-Kilovolt Transmission Line Structure Replacements CX(s) Applied: B1.3 Date: 03/10/2014 Location(s): Wyoming Offices(s): Western Area Power Administration-Rocky Mountain Region

  15. CX-011557: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Validation Corrosion of Structural Materials for Advanced Supercritical Carbon-Dioxide Brayton Cycle CX(s) Applied: B3.6 Date: 11/21/2013 Location(s): Wisconsin Offices(s): Idaho Operations Office

  16. CX-011558: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Structural Health Monitoring of Nuclear Spent Fuel Storage Facilities CX(s) Applied: B3.6 Date: 11/21/2013 Location(s): California Offices(s): Idaho Operations Office

  17. CX-006780: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Snohomish-Murray Relocation of Wood Pole at Structure 9/4CX(s) Applied: B4.6Date: 08/26/2011Location(s): Snohomish County, WashingtonOffice(s): Bonneville Power Administration

  18. CX-011578: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Off-gas Treatment: Evaluation of Nano-structured Sorbents for Selective Removal of Contaminants CX(s) Applied: B3.6 Date: 11/13/2013 Location(s): Idaho Offices(s): Idaho Operations Office

  19. CX-007896: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Bottom Fixed Platform Dynamics Models Assessing Surface Ice Interactions for Transitional Depth Structures in the Great Lakes CX(s) Applied: A9 Date: 02/10/2012 Location(s): Michigan Offices(s): Golden Field Office

  20. CX-005581: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Quark Gluon Structure of Hadrons in Quantum ChromodynamicsCX(s) Applied: A9Date: 04/07/2011Location(s): IllinoisOffice(s): Science, Chicago Office

  1. CX-012734: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Bouse Hills Pumping Plant to Harcuvar 115 Kilovolt Transmission Line, Inset Structure Installation CX(s) Applied: B4.6Date: 41878 Location(s): ArizonaOffices(s): Western Area Power Administration-Desert Southwest Region

  2. CX-008640: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Construction of a Metal Carport Structure CX(s) Applied: B1.15 Date: 05/29/2012 Location(s): South Carolina Offices(s): Savannah River Operations Office

  3. CX-008862: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Variable Frequency Drivers for Raw Water Intake Structure Pumps Government Furnished Equipment CX(s) Applied: B1.3 Date: 08/16/2012 Location(s): Texas, Texas, Louisiana Offices(s): Strategic Petroleum Reserve Field Office

  4. CX-010462: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Novel Low Cost Environmentally Friendly Synthetic Approaches toward Core-Shell Structured Micro CX(s) Applied: B3.6 Date: 06/10/2013 Location(s): Ohio Offices(s): National Energy Technology Laboratory

  5. CX-010460: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Novel Low Cost Environmentally Friendly Synthetic Approaches toward Core-Shell Structured Micro CX(s) Applied: B3.6 Date: 06/11/2013 Location(s): District of Columbia Offices(s): National Energy Technology Laboratory

  6. CX-005580: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Sidney to Sterling Transmission Line Structure Replacement, Logan County, ColoradoCX(s) Applied: B4.6Date: 12/22/2010Location(s): Logan County, ColoradoOffice(s): Western Area Power Administration-Rocky Mountain Region

  7. Cotton Gin Dust Explosibility Determinations 

    E-Print Network [OSTI]

    Vanderlick, Francis Jerome

    2014-01-06T23:59:59.000Z

    COTTON GIN DUST EXPLOSIBILITY DETERMINATIONS A Thesis by FRANCIS JEROME VANDERLICK Submitted to the Office of Graduate and Professional Studies of Texas A&M University in partial fulfillment of the requirements for the degree... Francis Jerome Vanderlick ii ABSTRACT Following the recent Imperial sugar dust explosion in 2008, a comprehensive survey of past dust explosions was conducted by the Occupational Safety and Health Administration (OSHA) to determine potential...

  8. Gender determination of avian embryo

    DOE Patents [OSTI]

    Daum, Keith A. (Idaho Falls, ID); Atkinson, David A. (Idaho Falls, ID)

    2002-01-01T23:59:59.000Z

    Disclosed is a method for gender determination of avian embryos. During the embryo incubation process, the outer hard shells of eggs are drilled and samples of allantoic fluid are removed. The allantoic fluids are directly introduced into an ion mobility spectrometer (IMS) for analysis. The resulting spectra contain the relevant marker peaks in the positive or negative mode which correlate with unique mobilities which are sex-specific. This way, the gender of the embryo can be determined.

  9. Automated MAD and MIR structure solution

    SciTech Connect (OSTI)

    Terwilliger, Thomas C., E-mail: terwilliger@lanl.gov [Structural Biology Group, Mail Stop M888, Los Alamos National Laboratory, Los Alamos, NM 87545 (United States); Berendzen, Joel [Biophysics Group, Mail Stop D454, Los Alamos National Laboratory, Los Alamos, NM 87545 (United States); Structural Biology Group, Mail Stop M888, Los Alamos National Laboratory, Los Alamos, NM 87545 (United States)

    1999-04-01T23:59:59.000Z

    A fully automated procedure for solving MIR and MAD structures has been developed using a scoring scheme to convert the structure-solution process into an optimization problem. Obtaining an electron-density map from X-ray diffraction data can be difficult and time-consuming even after the data have been collected, largely because MIR and MAD structure determinations currently require many subjective evaluations of the qualities of trial heavy-atom partial structures before a correct heavy-atom solution is obtained. A set of criteria for evaluating the quality of heavy-atom partial solutions in macromolecular crystallography have been developed. These have allowed the conversion of the crystal structure-solution process into an optimization problem and have allowed its automation. The SOLVE software has been used to solve MAD data sets with as many as 52 selenium sites in the asymmetric unit. The automated structure-solution process developed is a major step towards the fully automated structure-determination, model-building and refinement procedure which is needed for genomic scale structure determinations.

  10. Structural Code Considerations for Solar Rooftop Installations.

    SciTech Connect (OSTI)

    Dwyer, Stephen F.; Dwyer, Brian P.; Sanchez, Alfred

    2014-12-01T23:59:59.000Z

    Residential rooftop solar panel installations are limited in part by the high cost of structural related code requirements for field installation. Permitting solar installations is difficult because there is a belief among residential permitting authorities that typical residential rooftops may be structurally inadequate to support the additional load associated with a photovoltaic (PV) solar installation. Typical engineering methods utilized to calculate stresses on a roof structure involve simplifying assumptions that render a complex non-linear structure to a basic determinate beam. This method of analysis neglects the composite action of the entire roof structure, yielding a conservative analysis based on a rafter or top chord of a truss. Consequently, the analysis can result in an overly conservative structural analysis. A literature review was conducted to gain a better understanding of the conservative nature of the regulations and codes governing residential construction and the associated structural system calculations.

  11. CX-000616: Categorical Exclusion Determination | Department of...

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

    Exclusion Determination CX-000616: Categorical Exclusion Determination Enhanced Wind Resource Assessment at Naval Station Newport; National Renewable Energy Laboratory...

  12. CX-008582: Categorical Exclusion Determination | Department of...

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

    Exclusion Determination CX-008582: Categorical Exclusion Determination Bay Area Photovoltaics Consortium, Photovoltaic (PV) Manufacturing Initiative - Core Subawards CX(s)...

  13. CX-011845: Categorical Exclusion Determination | Department of...

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

    45: Categorical Exclusion Determination CX-011845: Categorical Exclusion Determination Materials Characterization Laboratory & RadiologicalEnvironment, Safety and Health Training...

  14. CX-005367: Categorical Exclusion Determination | Department of...

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

    67: Categorical Exclusion Determination CX-005367: Categorical Exclusion Determination Project T-222 Hazardous Materials Management Emergency Response (HAMMER) Training Facility...

  15. CX-002612: Categorical Exclusion Determination | Department of...

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

    Exclusion Determination CX-002612: Categorical Exclusion Determination Modeling Carbon Dioxide Sequestration in Saline Aquifer and Depleted Oil Reservoir to Evaluate...

  16. CX-002609: Categorical Exclusion Determination | Department of...

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

    Exclusion Determination CX-002609: Categorical Exclusion Determination Modeling Carbon Dioxide Sequestration in Saline Aquifer and Depleted Oil Reservoir to Evaluate...

  17. CX-000462: Categorical Exclusion Determination | Department of...

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

    Exclusion Determination CX-000462: Categorical Exclusion Determination Modeling Carbon Dioxide Sequestration in Saline Aquifer and Depleted Oil Reservoir to Evaluate...

  18. CX-002611: Categorical Exclusion Determination | Department of...

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

    Exclusion Determination CX-002611: Categorical Exclusion Determination Modeling Carbon Dioxide Sequestration in Saline Aquifer and Depleted Oil Reservoir to Evaluate...

  19. DOE Publishes Supplemental Proposed Determination for Miscellaneous...

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

    Proposed Determination for Miscellaneous Residential Refrigeration Products DOE Publishes Supplemental Proposed Determination for Miscellaneous Residential Refrigeration Products...

  20. CX-006275: Categorical Exclusion Determination | Department of...

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

    Categorical Exclusion Determination CX-006275: Categorical Exclusion Determination Energy Audit; Efficiency Improvements; and Renewable Energy Installations; Township of...

  1. Unreviewed Safety Question Determination - Processing Waste in...

    Office of Environmental Management (EM)

    Unreviewed Safety Question Determination - Processing Waste in the Waste Characterization Glovebox Unreviewed Safety Question Determination - Processing Waste in the Waste...

  2. Categorical Exclusion Determinations: Science | Department of...

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

    Science Categorical Exclusion Determinations: Science Categorical Exclusion Determinations issued by Science. DOCUMENTS AVAILABLE FOR DOWNLOAD February 9, 2012 CX-008000:...

  3. CX-001459: Categorical Exclusion Determination | Department of...

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

    Categorical Exclusion Determination CX-001459: Categorical Exclusion Determination Air Quality VIII: An International Conference on Carbon Management, Mercury, Trace Elements,...

  4. CX-000771: Categorical Exclusion Determination | Department of...

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

    Categorical Exclusion Determination CX-000771: Categorical Exclusion Determination New York Revised Narrative Information Worksheet for Energy Efficiency Program for...

  5. CX-001276: Categorical Exclusion Determination | Department of...

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

    Exclusion Determination CX-001276: Categorical Exclusion Determination Install Photovoltaic Roof System, Energy Efficiency Retrofits, Building Audits, and Hire a Committee...

  6. CX-000477: Categorical Exclusion Determination | Department of...

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

    Exclusion Determination CX-000477: Categorical Exclusion Determination Install a Photovoltaic Power Generation Array and Electric Car Charging Stations, Environmental Molecular...

  7. CX-003975: Categorical Exclusion Determination | Department of...

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

    Categorical Exclusion Determination CX-003975: Categorical Exclusion Determination State Energy Program - American Recovery and Reinvestment Act Green Jobs Training Program -...

  8. CX-001915: Categorical Exclusion Determination | Department of...

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

    15: Categorical Exclusion Determination CX-001915: Categorical Exclusion Determination Green Vision Community Energy Program and Evergreen Municipal Energy Efficiency Program-...

  9. CX-005022: Categorical Exclusion Determination | Department of...

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

    Exclusion Determination CX-005022: Categorical Exclusion Determination Small Wind Turbine Regional Test Center, Canyon Texas; National Renewable Energy Laboratory Tracking...

  10. CX-009310: Categorical Exclusion Determination | Department of...

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

    Categorical Exclusion Determination CX-009310: Categorical Exclusion Determination Optimization of Reservoir Storage Capacity in Different Depositional Environments (Rock...

  11. CX-009311: Categorical Exclusion Determination | Department of...

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

    Categorical Exclusion Determination CX-009311: Categorical Exclusion Determination Optimization of Reservoir Storage Capacity in Different Depositional Environments (Champaign)...

  12. CX-005490: Categorical Exclusion Determination | Department of...

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

    Exclusion Determination CX-005490: Categorical Exclusion Determination Thermal Analysis of Radioactive Materials by Thermagravimetric Analysis, Differential Scanning...

  13. CX-005708: Categorical Exclusion Determination | Department of...

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

    Exclusion Determination CX-005708: Categorical Exclusion Determination Phase 3 - Seismic Fracture Characterization Methodologies for Enhanced Geothermal Systems CX(s)...

  14. CX-002132: Categorical Exclusion Determination | Department of...

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

    Categorical Exclusion Determination CX-002132: Categorical Exclusion Determination Seismic Technology Adapted to Analyzing and Developing Geothermal Systems Below...

  15. Incommensurate Structure of Phosphorus Phase IV

    SciTech Connect (OSTI)

    Fujihisa, Hiroshi; Gotoh, Yoshito; Yamawaki, Hiroshi; Sakashita, Mami; Takeya, Satoshi; Honda, Kazumasa [National Institute of Advanced Industrial Science and Technology (AIST), AIST Tsukuba Central 5, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565 (Japan); Akahama, Yuichi; Kawamura, Haruki [Graduate School of Material Science, University of Hyogo, 3-2-1 Kouto, Kamigori, Ako-gun, Hyogo 678-1297 (Japan); Ohishi, Yasuo [Japan Synchrotron Radiation Research Institute (JASRI), 1-1-1 Kouto, Mikazuki, Sayo-gun, Hyogo 679-5198 (Japan)

    2007-04-27T23:59:59.000Z

    There are six known phases for phosphorus at room temperature under high pressure. Only the structure of phase IV, which exists from 107 GPa to 137 GPa, remains unsolved. We performed a powder x-ray diffraction experiment and a Rietveld analysis and successfully determined its structure to be an incommensurately modulated structure by only 1 site of atomic position. High-pressure phases of halogens and chalcogens have previously been shown to have a similar modulated structure; however, phosphorus phase IV is different from them and was shown to be the third case.

  16. Vacuum Structure and Potential

    E-Print Network [OSTI]

    J. X. Zheng-Johansson

    2007-04-02T23:59:59.000Z

    Based on overall experimental observations, especially the pair processes, I developed a model structure of the vacuum along with a basic-particle formation scheme begun in 2000 (with collaborator P-I Johansson). The model consists in that the vacuum is, briefly, filled of neutral but polarizable vacuuons, consisting each of a p-vaculeon and n- vaculeon of charges $+e$ and $-e$ of zero rest masses but with spin motions, assumed interacting each other with a Coulomb force. The model has been introduced in full in a book (Nova Sci, 2005) and referred to in a number of journal/E-print papers. I outline in this easier accessible paper the detailed derivation of the model and a corresponding quantitative determination of the vacuuon size.

  17. Determination of leakage areas in nuclear piping

    SciTech Connect (OSTI)

    Keim, E. [Siemens/KWU, Erlangen (Germany)

    1997-04-01T23:59:59.000Z

    For the design and operation of nuclear power plants the Leak-Before-Break (LBB) behavior of a piping component has to be shown. This means that the length of a crack resulting in a leak is smaller than the critical crack length and that the leak is safely detectable by a suitable monitoring system. The LBB-concept of Siemens/KWU is based on computer codes for the evaluation of critical crack lengths, crack openings, leakage areas and leakage rates, developed by Siemens/KWU. In the experience with the leak rate program is described while this paper deals with the computation of crack openings and leakage areas of longitudinal and circumferential cracks by means of fracture mechanics. The leakage areas are determined by the integration of the crack openings along the crack front, considering plasticity and geometrical effects. They are evaluated with respect to minimum values for the design of leak detection systems, and maximum values for controlling jet and reaction forces. By means of fracture mechanics LBB for subcritical cracks has to be shown and the calculation of leakage areas is the basis for quantitatively determining the discharge rate of leaking subcritical through-wall cracks. The analytical approach and its validation will be presented for two examples of complex structures. The first one is a pipe branch containing a circumferential crack and the second one is a pipe bend with a longitudinal crack.

  18. Emissivity corrected infrared method for imaging anomalous structural heat flows

    DOE Patents [OSTI]

    Del Grande, Nancy K. (San Leandro, CA); Durbin, Philip F. (Livermore, CA); Dolan, Kenneth W. (Livermore, CA); Perkins, Dwight E. (Livermore, CA)

    1995-01-01T23:59:59.000Z

    A method for detecting flaws in structures using dual band infrared radiation. Heat is applied to the structure being evaluated. The structure is scanned for two different wavelengths and data obtained in the form of images. Images are used to remove clutter to form a corrected image. The existence and nature of a flaw is determined by investigating a variety of features.

  19. Determining Cropland Cash Rental Arrangements

    E-Print Network [OSTI]

    Dhuyvetter, Kevin C.; Kastens, Terry L.; Outlaw, Joe

    1999-06-23T23:59:59.000Z

    Determining Cropland Cash Rental Arrangements Kevin C. Dhuyvetter, Terry L. Kastens and Joe L. Outlaw* Many crop producers rely heavily on rented land in their farming operations. Crop land is typically rented in one of three ways: (1) cash rent; (2...

  20. CX-011104: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Coupled Thermo-Mechanical and Photo-Chemical Degradation Mechanisms that Determine the Reliability and Operational Lifetimes for Concentrated Photovoltaic Technologies CX(s) Applied: A9, B3.6 Date: 08/29/2013 Location(s): California Offices(s): Golden Field Office

  1. CX-100019: Categorical Exclusion Determination

    Office of Energy Efficiency and Renewable Energy (EERE)

    Determination of Rare Earths in Geothermal Brines and Evaluation of Potential Extraction Techniques CX(s) Applied: A9, B3.1, B3.6 Date: 08/18/2014 Location(s): California Offices(s): Golden Field Office Technology Office: Geothermal Technologies Award Number: DE-EE0006750

  2. CX-011193: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Categorical Exclusion Determination for Indoor, Small- and Pilot-Scale Research and Development CX(s) Applied: A9, B1.7, B3.6, B3.10, B3.12, B3.15, B5.1, B5.15 Date: 08/05/2013 Location(s): California Offices(s): Berkeley Site Office

  3. CX-012090: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Henderson-Mead Number 2 230-Kilovolt Transmission Line, Erosion Repair at Structure 2/4 CX(s) Applied: B1.3 Date: 09/11/2013 Location(s): Nevada, Nevada Offices(s): Western Area Power Administration-Desert Southwest Region

  4. CX-011718: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Electrical District 2 to Saguaro #2 115 Kilovolt Transmission Line, Marker Ball Installation at Structure 26-10. CX(s) Applied: B1.3 Date: 01/09/2014 Location(s): Arizona Offices(s): Western Area Power Administration-Desert Southwest Region

  5. CX-007390: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Hot Carrier Collection in Thin Film Silicon with Tailored Nanocrystalline/Amorphous Structure CX(s) Applied: B3.15, A9, B3.6 Date: 12/05/2011 Location(s): Colorado Offices(s): Golden Field Office

  6. CX-008399: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Erosion Control Measures Structure No. 110-3 Dave Johnston to Stegall 230 Kilovolt Transmission Line CX(s) Applied: B1.3 Date: 03/29/2012 Location(s): Wyoming Offices(s): Western Area Power Administration-Rocky Mountain Region

  7. CX-006239: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Structure Replacement, Guernsey Rural Substation to Limestone Substation, Platte County, WyomingCX(s) Applied: B4.6Date: 10/02/2009Location(s): Platte County, WyomingOffice(s): Western Area Power Administration-Rocky Mountain Region

  8. CX-005009: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Modify Two Structures Along the Vera Tap to Trentwood-Valley Way #1, 115 Kilovolt Transmission LineCX(s) Applied: B1.3, B4.6Date: 01/10/2011Location(s): Spokane County, WashingtonOffice(s): Bonneville Power Administration

  9. CX-012747: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Alcova-Miracle Mile East 115 Kilovolt Transmission Line Fiber Optic Ground Wire and Structure Replacement Project Natrona and Carbon Counties, Wyoming CX(s) Applied: B1.3, B4.7Date: 41855 Location(s): WyomingOffices(s): Western Area Power Administration-Rocky Mountain Region

  10. CX-010675: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Parker Dam to Gila 161-kilovolt Transmission Line, Cross Arm Replacement at Structure 0/7 CX(s) Applied: B1.3 Date: 07/22/2013 Location(s): California Offices(s): Western Area Power Administration-Desert Southwest Region

  11. CX-003021: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Structure Replacements and Reconductor Black Hollow to Ault Transmission Line, Weld County, ColoradoCX(s) Applied: B4.6Date: 06/01/2010Location(s): Weld County, ColoradoOffice(s): Western Area Power Administration-Rocky Mountain Region

  12. CX-011858: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Beaver Creek-Sterling 115 Kilovolt Transmission Line Structure Relocation, Morgan County, Colorado CX(s) Applied: B4.13 Date: 01/21/2014 Location(s): Colorado Offices(s): Western Area Power Administration-Rocky Mountain Region

  13. CX-009227: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Beaver Creek- Big Sandy 115 Kilovolt Transmission Line Structure Replacements - Last Chance Fire CX(s) Applied: B4.13 Date: 08/31/2012 Location(s): Colorado Offices(s): Western Area Power Administration-Rocky Mountain Region

  14. CX-012083: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Rosedale-Willowby-Kiowa Creek 115-Kilovolt Transmission Line Wood H-Structure Replacement CX(s) Applied: B1.3 Date: 04/10/2014 Location(s): Colorado Offices(s): Western Area Power Administration-Rocky Mountain Region

  15. CX-010846: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Install Stud, Shims, and Nut in the L-Basin 70-Ton Cask Lid Support Structure CX(s) Applied: B2.5 Date: 07/30/2013 Location(s): South Carolina Offices(s): Savannah River Operations Office

  16. CX-007359: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    McNary-Horse Heaven 230-kilovolt Transmission Line Raise (Structures 15/2 to 16/3) CX(s) Applied: B1.3 Date: 12/01/2011 Location(s): Washington Offices(s): Bonneville Power Administration

  17. CX-011399: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Integrating Magnetotellurics, Soil Gas Geochemistry and Structural Analysis to Identify Hidden, High-Enthalpy, Extensional Geothermal Systems CX(s) Applied: A9, B3.1 Date: 12/19/2013 Location(s): Nevada Offices(s): Golden Field Office

  18. CX-005936: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Erie to Terry Street and Lyons to Longmont Northwest 115 Kilovolt Transmission Line Structure Replacements, Boulder and Broomfield Counties, ColoradoCX(s) Applied: B4.6Date: 05/16/2011Location(s): Boulder County, ColoradoOffice(s): Western Area Power Administration-Rocky Mountain Region

  19. CX-011548: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Lower Length Scale Characterization and Validation of Formation and Stability of Helium Bubbles in Nano-structured Ferritic Alloys under Irradiation CX(s) Applied: B3.6 Date: 11/26/2013 Location(s): South Carolina Offices(s): Idaho Operations Office

  20. CX-001110: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Fracture Network and Fluid Flow Imaging for Engineered Geothermal Systems Applications from Multi-Dimensional Electrical Resistivity StructureCX(s) Applied: A9Date: 03/10/2010Location(s): UtahOffice(s): Energy Efficiency and Renewable Energy, Golden Field Office

  1. CX-011857: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Archer-Cheyenne North/South 115 Kilovolt Transmission Line Structure Replacement, Laramie County, Wyoming CX(s) Applied: B4.13 Date: 01/28/2014 Location(s): Wyoming Offices(s): Western Area Power Administration-Rocky Mountain Region

  2. CX-009235: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Willow Creek - Granby Tap 2.4 Kilovolt Distribution Line Structure 0/3A Pole Replacement Project CX(s) Applied: B4.6 Date: 09/20/2012 Location(s): Colorado Offices(s): Western Area Power Administration-Rocky Mountain Region

  3. CX-008777: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Boysen-Thermopolis 115 Kilowolt Transmission Line Structure 15/6 Pole Replacement Project Fremont County, Wyoming CX(s) Applied: B4.6 Date: 07/02/2012 Location(s): Wyoming Offices(s): Western Area Power Administration-Rocky Mountain Region

  4. CX-012214: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Copper Mountain-Pilot Butte 34.5 Kilovolt Transmission Line Structure Pole Replacement Project, Fremont County, Wyoming CX(s) Applied: B1.3 Date: 05/05/2014 Location(s): Wyoming Offices(s): Western Area Power Administration-Rocky Mountain Region

  5. CX-011700: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Optimal Power Buoy Structure Design for Maximized Power to Weight Ratio and Reduced Installed Capital Cost CX(s) Applied: A9, B3.6 Date: 01/15/2014 Location(s): New Jersey, New Jersey Offices(s): Golden Field Office

  6. CX-004461: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Taft-Hot Springs #1 Landing Construction, Access Road and Structure MaintenanceCX(s) Applied: B1.3, B1.13Date: 10/26/2010Location(s): Thompson Falls, MontanaOffice(s): Bonneville Power Administration

  7. CX-010287: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Understanding Nitrous Oxide Selective Catalytic Reduction Mechanism and Activity on Copper/Chabazite Structures throughout the Catalyst Life CX(s) Applied: A9, B3.6 Date: 05/08/2013 Location(s): CX: none Offices(s): National Energy Technology Laboratory

  8. CX-012340: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Flagstaff Pinnacle Peak #1 & 2 Transmission Lines - Slid Static Damper Repair at Structures 134/3 & 139/2 CX(s) Applied: B1.3 Date: 06/11/2014 Location(s): Arizona, Arizona Offices(s): Western Area Power Administration-Desert Southwest Region

  9. CX-010881: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Glen Canyon to Flagstaff #2 345-Kilovolt Transmission Line, Access Road Maintenance from Structure 45/5 to 46/1 CX(s) Applied: B1.3 Date: 08/08/2013 Location(s): Arizona Offices(s): Western Area Power Administration-Desert Southwest Region

  10. CX-010883: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    PHX-LOB and LIB-LOB 230-Kilovolt Double-Circuit- Replace Insulators at Structure No. 28-2 With NCI Type Polymers CX(s) Applied: B1.3 Date: 08/12/2013 Location(s): Arizona Offices(s): Western Area Power Administration-Desert Southwest Region

  11. CX-008403: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Multiple Structure Replacement Flaming Gorge to Vernal No. 1 138 Kilovolt Transmission Line CX(s) Applied: B1.3 Date: 03/29/2012 Location(s): Utah Offices(s): Western Area Power Administration-Rocky Mountain Region

  12. CX-011202: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    COLORA - Cross-Arm Replacement, Structure Numbers 12-3, 12-6 CX(s) Applied: B1.3 Date: 09/23/2013 Location(s): Arizona Offices(s): Western Area Power Administration-Desert Southwest Region

  13. CX-011228: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Structure 112-4 LIBPAD1 230-kilovolt Transmission Line "Live Line" Maintenance Training CX(s) Applied: B1.2 Date: 10/25/2013 Location(s): Arizona Offices(s): Western Area Power Administration-Desert Southwest Region

  14. Structural Genomics and Drug Discovery for Infectious Diseases

    SciTech Connect (OSTI)

    Anderson, W.F.

    2010-09-03T23:59:59.000Z

    The application of structural genomics methods and approaches to proteins from organisms causing infectious diseases is making available the three dimensional structures of many proteins that are potential drug targets and laying the groundwork for structure aided drug discovery efforts. There are a number of structural genomics projects with a focus on pathogens that have been initiated worldwide. The Center for Structural Genomics of Infectious Diseases (CSGID) was recently established to apply state-of-the-art high throughput structural biology technologies to the characterization of proteins from the National Institute for Allergy and Infectious Diseases (NIAID) category A-C pathogens and organisms causing emerging, or re-emerging infectious diseases. The target selection process emphasizes potential biomedical benefits. Selected proteins include known drug targets and their homologs, essential enzymes, virulence factors and vaccine candidates. The Center also provides a structure determination service for the infectious disease scientific community. The ultimate goal is to generate a library of structures that are available to the scientific community and can serve as a starting point for further research and structure aided drug discovery for infectious diseases. To achieve this goal, the CSGID will determine protein crystal structures of 400 proteins and protein-ligand complexes using proven, rapid, highly integrated, and cost-effective methods for such determination, primarily by X-ray crystallography. High throughput crystallographic structure determination is greatly aided by frequent, convenient access to high-performance beamlines at third-generation synchrotron X-ray sources.

  15. Determining the Appropriate Asset Allocation

    E-Print Network [OSTI]

    Johnson, Jason; Polk, Wade

    2002-08-12T23:59:59.000Z

    more aggres- sive investments, assuming you aren?t averse to risk. As time goes by, your portfolio has less time to recover from market dips, so you might choose to shift gradually to a more conservative asset alloca- tion. E-160 8-02 DETERMINING... assets. Different asset classes have different levels of liquidity. Liquidity is less of a consideration for money invested to meet longer term goals. Diversification Diversification is a key compo- nent of asset allocation. A diversi- fied portfolio...

  16. Method for determining gene knockouts

    DOE Patents [OSTI]

    Maranas, Costas D. (Port Matilda, PA); Burgard, Anthony R. (State College, PA); Pharkya, Priti (State College, PA)

    2011-09-27T23:59:59.000Z

    A method for determining candidates for gene deletions and additions using a model of a metabolic network associated with an organism, the model includes a plurality of metabolic reactions defining metabolite relationships, the method includes selecting a bioengineering objective for the organism, selecting at least one cellular objective, forming an optimization problem that couples the at least one cellular objective with the bioengineering objective, and solving the optimization problem to yield at least one candidate.

  17. Method for determining gene knockouts

    DOE Patents [OSTI]

    Maranas, Costa D; Burgard, Anthony R; Pharkya, Priti

    2013-06-04T23:59:59.000Z

    A method for determining candidates for gene deletions and additions using a model of a metabolic network associated with an organism, the model includes a plurality of metabolic reactions defining metabolite relationships, the method includes selecting a bioengineering objective for the organism, selecting at least one cellular objective, forming an optimization problem that couples the at least one cellular objective with the bioengineering objective, and solving the optimization problem to yield at least one candidate.

  18. Determining boiler-water makeup

    SciTech Connect (OSTI)

    Beecher, J.; Herman, K. [Ashland Chemical Co., Boonton, NJ (United States). Drew Industrial Div.

    1995-10-01T23:59:59.000Z

    In boiler operations, it is desirable to determine blowdown--and, thus, the feedwater`s concentration cycles--because it enables operators to calculate the theoretical concentrations of iron, copper or dispersant in the system. These calculations are important for maintaining boiler cleanliness. In practice, however, it isn`t always feasible to determine blowdown. For example, if the steam, feedwater and blowdown flows are not measured in a system, or if the measurements are not accurate, the blowdown and feedwater concentration cycles cannot be accurately determined. Also, if demineralized makeup water with very-low silica concentrations is mixed with essentially silica-free condensate, the ratio of silica in the boiler water to the silica in the feedwater may not yield accurate values for the concentration cycle. This method for calculating concentration cycles is accurate to within 5%, when the accuracy of the parameters measured are within the following limits: steam flow (2%); phosphate, residual (5%); micro calcium (50%); micro iron (25%); and phosphate, feed (10%).

  19. Prediction of parallel in-register amyloidogenic beta-structures In highly beta-rich protein sequences by pairwise propensity analysis

    E-Print Network [OSTI]

    Bryan, Allen Wayne

    2009-01-01T23:59:59.000Z

    Amyloids and prion proteins are clinically and biologically important beta-structures, whose supersecondary structures are difficult to determine by standard experimental or computational means. In addition, significant ...

  20. CX-004196: Categorical Exclusion Determination | Department of...

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

    6: Categorical Exclusion Determination CX-004196: Categorical Exclusion Determination Infrared and Raman Spectroscopy of Biological Safety Level-1 Biological Samples CX(s) Applied:...

  1. CX-000331: Categorical Exclusion Determination | Department of...

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

    Exclusion Determination CX-000331: Categorical Exclusion Determination Kentucky Revision 2 - Commercial Office Building Retrofit Showcase CX(s) Applied: B1.4, B1.5,...

  2. CX-000301: Categorical Exclusion Determination | Department of...

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

    Exclusion Determination CX-000301: Categorical Exclusion Determination Maryland Revision 1 - Grants to Promote Mid-size Renewables at Private & Government Buildings CX(s)...

  3. CX-003518: Categorical Exclusion Determination | Department of...

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

    Exclusion Determination CX-003518: Categorical Exclusion Determination Energy from Biomass Research and Technology Transfer Program CX(s) Applied: B3.6 Date: 08232010...

  4. CX-000815: Categorical Exclusion Determination | Department of...

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

    0815: Categorical Exclusion Determination CX-000815: Categorical Exclusion Determination Hydrogen Technology Laboratory 140 - Chromatography, Wet Laboratory CX(s) Applied: B3.6...

  5. CX-005151: Categorical Exclusion Determination | Department of...

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

    Exclusion Determination CX-005151: Categorical Exclusion Determination United States-China Advanced Coal Technologies Consortium - University of Wyoming CX(s) Applied: A9, A11...

  6. CX-005156: Categorical Exclusion Determination | Department of...

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

    Exclusion Determination CX-005156: Categorical Exclusion Determination United States-China Advanced Coal Technologies Consortium - Lawrence Livermore National Laboratory CX(s)...

  7. CX-005154: Categorical Exclusion Determination | Department of...

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

    Exclusion Determination CX-005154: Categorical Exclusion Determination United States-China Advanced Coal Technologies Consortium - University of Kentucky CX(s) Applied: A9, A11,...

  8. CX-005159: Categorical Exclusion Determination | Department of...

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

    Exclusion Determination CX-005159: Categorical Exclusion Determination United States-China Advanced Coal Technologies Consortium - Indiana Geological Survey CX(s) Applied: A9,...

  9. CX-000903: Categorical Exclusion Determination | Department of...

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

    903: Categorical Exclusion Determination CX-000903: Categorical Exclusion Determination Smart Grid Photovoltaic Pilot CX(s) Applied: B5.1 Date: 02242010 Location(s): Illinois...

  10. CX-012015: Categorical Exclusion Determination | Department of...

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

    Exclusion Determination CX-012015: Categorical Exclusion Determination Enhanced Wind Resource Assessment with Sonic Ranging and Detection at Tooele Army Depot CX(s) Applied:...

  11. CX-000658: Categorical Exclusion Determination | Department of...

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

    Determination CX-000658: Categorical Exclusion Determination Gilt Edge Mine Wind Resource Assessment; National Renewable Energy Laboratory Tracking Number 10-009 CX(s)...

  12. CX-002753: Categorical Exclusion Determination | Department of...

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

    Determination CX-002753: Categorical Exclusion Determination Gilt Edge Mine Wind Resource Assessment CX(s) Applied: B3.1 Date: 06212010 Location(s): Deadwood, South...

  13. CX-003226: Categorical Exclusion Determination | Department of...

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

    Exclusion Determination CX-003226: Categorical Exclusion Determination Parris Island Wind Resource Assessment; National Renewable Energy Laboratory Tracking Number 10-032 CX(s)...

  14. CX-000940: Categorical Exclusion Determination | Department of...

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

    Exclusion Determination CX-000940: Categorical Exclusion Determination Distributed Generation Wind Power at Navy Sites - Second Meteorological tower at Naval Station Newport,...

  15. CX-006074: Categorical Exclusion Determination | Department of...

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

    Exclusion Determination CX-006074: Categorical Exclusion Determination Bay Area Photovoltaics Consortium, Photovoltaic Manufacturing Initiative CX(s) Applied: A9 Date: 0628...

  16. CX-002964: Categorical Exclusion Determination | Department of...

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

    Categorical Exclusion Determination CX-002964: Categorical Exclusion Determination Wind Energy and Sustainable Energy Solutions CX(s) Applied: B3.11, A9 Date: 07092010...

  17. CX-005201: Categorical Exclusion Determination | Department of...

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

    Exclusion Determination CX-005201: Categorical Exclusion Determination Tall Tower Wind Energy Monitoring and Numerical Model Validation in Southern Nevada CX(s) Applied: A9,...

  18. CX-011085: Categorical Exclusion Determination | Department of...

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

    Exclusion Determination CX-011085: Categorical Exclusion Determination Alaska Wind Energy Research Project (formally "St. Paul Wind Technology Development Project, Phase 2")...

  19. CX-011295: Categorical Exclusion Determination | Department of...

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

    Exclusion Determination CX-011295: Categorical Exclusion Determination Material Dynamics and Kinetics Lab CX(s) Applied: B3.6 Date: 10172013 Location(s): Pennsylvania...

  20. CX-009330: Categorical Exclusion Determination | Department of...

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

    Exclusion Determination CX-009330: Categorical Exclusion Determination Gas Hydrate Dynamics on the Alaskan Beaufort Continental Slope: Modeling and Field Characterization CX(s)...

  1. CX-009328: Categorical Exclusion Determination | Department of...

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

    Exclusion Determination CX-009328: Categorical Exclusion Determination Gas Hydrate Dynamics on the Alaskan Beaufort Continental Slope: Modeling and Field Characterization CX(s)...

  2. CX-011252: Categorical Exclusion Determination | Department of...

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

    Exclusion Determination CX-011252: Categorical Exclusion Determination Concentrating Solar Power Heat Integration for Baseload Renewable Energy Deployment CX(s) Applied: A9...

  3. CX-004374: Categorical Exclusion Determination | Department of...

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

    74: Categorical Exclusion Determination CX-004374: Categorical Exclusion Determination Solar Electric Power for Nonsectarian Educational and Social CX(s) Applied: A9, B5.1 Date:...

  4. CX-011391: Categorical Exclusion Determination | Department of...

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

    Exclusion Determination CX-011391: Categorical Exclusion Determination Municipal Complex Solar Power Project CX(s) Applied: B3.14 Date: 12102013 Location(s): New Jersey...

  5. CX-012261: Categorical Exclusion Determination | Department of...

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

    Determination CX-012261: Categorical Exclusion Determination An Evaluation of the Carbon Sequestration Potential of the Cambro-Ordovician Strata of the Illinois CX(s)...

  6. CX-001159: Categorical Exclusion Determination | Department of...

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

    Determination CX-001159: Categorical Exclusion Determination An Evaluation of the Carbon Sequestration Potential of the Cambro-Ordovician Strata of the Illinois and...

  7. CX-001161: Categorical Exclusion Determination | Department of...

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

    Determination CX-001161: Categorical Exclusion Determination An Evaluation of the Carbon Sequestration Potential of the Cambro-Ordovician Strata of the Illinois and...

  8. CX-008507: Categorical Exclusion Determination | Department of...

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

    Exclusion Determination CX-008507: Categorical Exclusion Determination Midwest Regional Carbon Sequestration Partnership - Phase Three CX(s) Applied: B3.1, B5.3 Date: 07162012...

  9. CX-007111: Categorical Exclusion Determination | Department of...

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

    Exclusion Determination CX-007111: Categorical Exclusion Determination Shallow Carbon Sequestration Demonstration Project (Iatan Generating Station) CX(s) Applied: B3.1...

  10. CX-001163: Categorical Exclusion Determination | Department of...

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

    Determination CX-001163: Categorical Exclusion Determination An Evaluation of the Carbon Sequestration Potential of the Cambro-Ordovician Strata of the Illinois and...

  11. CX-007118: Categorical Exclusion Determination | Department of...

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

    Exclusion Determination CX-007118: Categorical Exclusion Determination Shallow Carbon Sequestration Demonstration Project CX(s) Applied: B3.1 Date: 10042011...

  12. CX-009326: Categorical Exclusion Determination | Department of...

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

    Exclusion Determination CX-009326: Categorical Exclusion Determination Midwest Regional Carbon Sequestration Partnership - Subtask 1.7 CX(s) Applied: B3.1 Date: 09282012...

  13. CX-011434: Categorical Exclusion Determination | Department of...

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

    Exclusion Determination CX-011434: Categorical Exclusion Determination Midwest Regional Carbon Sequestration Partnership - Phase III (Categorical Exclusion (CX)-A Tasks) CX(s)...

  14. CX-003037: Categorical Exclusion Determination | Department of...

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

    Determination CX-003037: Categorical Exclusion Determination Mercury Removal from Clean Coal Processing Air Stream CX(s) Applied: B3.6 Date: 07132010 Location(s): Butte,...

  15. CX-011393: Categorical Exclusion Determination | Department of...

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

    Exclusion Determination CX-011393: Categorical Exclusion Determination Build and Test of a Novel, Commercial-Scale Wave Energy Direct Drive Rotary Power Take-Off Under...

  16. CX-007388: Categorical Exclusion Determination | Department of...

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

    Exclusion Determination CX-007388: Categorical Exclusion Determination Regional Test Center Project: Solar Technology Acceleration Center (SolarTAC) CX(s) Applied: B1.15,...

  17. CX-012114: Categorical Exclusion Determination | Department of...

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

    4: Categorical Exclusion Determination CX-012114: Categorical Exclusion Determination Test Procedures for Measuring Energy Efficiency of Consumer Products and Industrial Equipment...

  18. CX-008235: Categorical Exclusion Determination | Department of...

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

    Exclusion Determination CX-008235: Categorical Exclusion Determination Harnessing the Hydro-Electric Potential of Engineered Drops in the Columbia Basin Project: Phase 1 CX(s)...

  19. CX-012245: Categorical Exclusion Determination | Department of...

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

    5: Categorical Exclusion Determination CX-012245: Categorical Exclusion Determination Hydro Research Foundation University Research Awards - Carnegie Mellon CX(s) Applied: A9 Date:...

  20. CX-012253: Categorical Exclusion Determination | Department of...

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

    3: Categorical Exclusion Determination CX-012253: Categorical Exclusion Determination Hydro Research Foundation University Research Awards - OSU CX(s) Applied: A9 Date: 05272014...

  1. CX-012252: Categorical Exclusion Determination | Department of...

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

    2: Categorical Exclusion Determination CX-012252: Categorical Exclusion Determination Hydro Research Foundation University Research Awards- Cornell CX(s) Applied: A9, B3.16 Date:...

  2. CX-012254: Categorical Exclusion Determination | Department of...

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

    4: Categorical Exclusion Determination CX-012254: Categorical Exclusion Determination Hydro Research Foundation University Research Awards - Vanderbilt CX(s) Applied: A9 Date: 05...

  3. CX-003904: Categorical Exclusion Determination | Department of...

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

    904: Categorical Exclusion Determination CX-003904: Categorical Exclusion Determination Hydro Electric Project - Snohomish Public Utility District CX(s) Applied: A9, A11, B5.1...

  4. CX-012246: Categorical Exclusion Determination | Department of...

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

    6: Categorical Exclusion Determination CX-012246: Categorical Exclusion Determination Hydro Research Foundation University Research Awards - University of Tennessee CX(s) Applied:...

  5. CX-012241: Categorical Exclusion Determination | Department of...

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

    1: Categorical Exclusion Determination CX-012241: Categorical Exclusion Determination Hydro Research Foundation University Research Awards - MIT CX(s) Applied: A9, B3.6 Date: 06...

  6. CX-006681: Categorical Exclusion Determination | Department of...

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

    Exclusion Determination CX-006681: Categorical Exclusion Determination New Drilling Location in Section 29 CX(s) Applied: B3.1 Date: 12232009 Location(s): Casper,...

  7. CX-006682: Categorical Exclusion Determination | Department of...

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

    Exclusion Determination CX-006682: Categorical Exclusion Determination New Drilling Location in Section 29 (Revision 1) CX(s) Applied: B3.7 Date: 06022010 Location(s):...

  8. CX-003888: Categorical Exclusion Determination | Department of...

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

    Exclusion Determination CX-003888: Categorical Exclusion Determination Improved Drilling and Fracturing Fluids for Shale Gas Reservoirs CX(s) Applied: B3.6 Date: 09102010...

  9. CX-000855: Categorical Exclusion Determination | Department of...

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

    Determination CX-000855: Categorical Exclusion Determination 25A5208 - Low-contact Drilling Technology to Enable Economical Engineered Geothermal System Wells CX(s) Applied:...

  10. CX-004015: Categorical Exclusion Determination | Department of...

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

    Exclusion Determination CX-004015: Categorical Exclusion Determination Arizona Balance of State- Energy Efficiency and Conservation Block Grant Wickenburg CX(s) Applied:...

  11. CX-009555: Categorical Exclusion Determination | Department of...

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

    Exclusion Determination CX-009555: Categorical Exclusion Determination Assisting the Tooling and Machining Industry to Become Energy Efficient CX(s) Applied: A9 Date: 12102012...

  12. CX-000835: Categorical Exclusion Determination | Department of...

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

    Exclusion Determination CX-000835: Categorical Exclusion Determination Wachs Cutter Tooling Station (4495) CX(s) Applied: B1.31 Date: 02112010 Location(s): Oak Ridge,...

  13. CX-003208: Categorical Exclusion Determination | Department of...

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

    Exclusion Determination CX-003208: Categorical Exclusion Determination Michigan 85% Ethanol Fuel (E85) Infrastructure Project CX(s) Applied: B5.1 Date: 08032010 Location(s):...

  14. CX-003471: Categorical Exclusion Determination | Department of...

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

    Exclusion Determination CX-003471: Categorical Exclusion Determination Pennsylvania Ethanol Fuel (E85) Corridor Project - Lew's Service Center CX(s) Applied: B5.1 Date: 0823...

  15. CX-007925: Categorical Exclusion Determination | Department of...

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

    Determination CX-007925: Categorical Exclusion Determination Severe Environment Corrosion and Erosion Research Facility CX(s) Applied: B3.6 Date: 02222012 Location(s):...

  16. CX-006048: Categorical Exclusion Determination | Department of...

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

    Determination CX-006048: Categorical Exclusion Determination Severe Environmental Corrosion & Erosion Research Facility (SECERF) CX(s) Applied: B3.6 Date: 06082011...

  17. CX-006395: Categorical Exclusion Determination | Department of...

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

    Categorical Exclusion Determination CX-006395: Categorical Exclusion Determination Corrosion Tests on Carbon Steel Exposed to Oxalic Acid and a Sludge Simulant CX(s) Applied:...

  18. CX-005801: Categorical Exclusion Determination | Department of...

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

    Determination CX-005801: Categorical Exclusion Determination Polymer Synthesis, Corrosion, and Electrochemical Tests in Lab D-0115 CX(s) Applied: B3.6 Date: 03312011...

  19. CX-006043: Categorical Exclusion Determination | Department of...

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

    Categorical Exclusion Determination CX-006043: Categorical Exclusion Determination CorrosionElectrochemistry Laboratory CX(s) Applied: B3.6 Date: 06082011 Location(s):...

  20. CX-005861: Categorical Exclusion Determination | Department of...

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

    Exclusion Determination CX-005861: Categorical Exclusion Determination Pretreatment Engineering Platform (PEP) Sludge Simulant Preparation CX(s) Applied: B3.6 Date: 03172011...

  1. CX-002138: Categorical Exclusion Determination | Department of...

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

    Exclusion Determination CX-002138: Categorical Exclusion Determination Waste Digester Biogas Recovery System CX(s) Applied: B5.1 Date: 04292010 Location(s): Plover, Wisconsin...

  2. CX-001416: Categorical Exclusion Determination | Department of...

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

    Exclusion Determination CX-001416: Categorical Exclusion Determination Integration of Solar Energy in the City of Boston's Emergency Preparedness Infrastructure CX(s) Applied:...

  3. CX-009634: Categorical Exclusion Determination | Department of...

    Office of Environmental Management (EM)

    Exclusion Determination CX-009634: Categorical Exclusion Determination Advanced Test Reactor (ATR) Transition to Commercial Power CX(s) Applied: B2.5 Date: 12052012...

  4. Categorical Exclusion Determinations: Office of Energy Efficiency...

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

    Energy Efficiency and Renewable Energy Categorical Exclusion Determinations: Office of Energy Efficiency and Renewable Energy Categorical Exclusion Determinations issued by Energy...

  5. CX-001260: Categorical Exclusion Determination | Department of...

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

    Categorical Exclusion Determination CX-001260: Categorical Exclusion Determination Energy Audit, Revolving Loan Program, Mortgage Buy-Down Program, Energy Efficiency Retrofits,...

  6. CX-004629: Categorical Exclusion Determination | Department of...

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

    Determination CX-004629: Categorical Exclusion Determination Seneca Nation of New York Energy Efficiency and Conservation Strategies CX(s) Applied: A1, A9, A11 Date: 1026...

  7. CX-001088: Categorical Exclusion Determination | Department of...

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

    Exclusion Determination CX-001088: Categorical Exclusion Determination City of New York American Recovery and Reinvestment Act - Energy Efficiency and Conservation Block Grant...

  8. CX-002168: Categorical Exclusion Determination | Department of...

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

    Categorical Exclusion Determination CX-002168: Categorical Exclusion Determination New York State Alternative Fuel Vehicle and Infrastructure Deployment CX(s) Applied: B5.1 Date:...

  9. CX-001403: Categorical Exclusion Determination | Department of...

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

    Exclusion Determination CX-001403: Categorical Exclusion Determination West New York Energy Efficiency Projects CX(s) Applied: B5.1 Date: 04092010 Location(s): West New...

  10. CX-009133: Categorical Exclusion Determination | Department of...

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

    Categorical Exclusion Determination CX-009133: Categorical Exclusion Determination New York Program Year 2012 Formula Grants - State Energy Program CX(s) Applied: A9, A11 Date:...

  11. CX-001636: Categorical Exclusion Determination | Department of...

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

    Determination CX-001636: Categorical Exclusion Determination Alexandria Bay, New York, Met Tower: General Services Administration Border Station CX(s) Applied: B3.1, A9...

  12. CX-002167: Categorical Exclusion Determination | Department of...

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

    Categorical Exclusion Determination CX-002167: Categorical Exclusion Determination New York State Alternative Fuel Vehicle and Infrastructure Deployment CX(s) Applied: B5.1 Date:...

  13. CX-000935: Categorical Exclusion Determination | Department of...

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

    Determination CX-000935: Categorical Exclusion Determination Onondaga County, New York Energy Efficiency and Conservation Block Grant - American Recovery and Reinvestment Act...

  14. CX-006748: Categorical Exclusion Determination | Department of...

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

    Categorical Exclusion Determination CX-006748: Categorical Exclusion Determination New York State Alternative Fuel Vehicle and Infrastructure Deployment CX(s) Applied: B5.1 Date:...

  15. CX-007020: Categorical Exclusion Determination | Department of...

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

    Categorical Exclusion Determination CX-007020: Categorical Exclusion Determination New York State Alternative Fuel Vehicle and Infrastructure Deployment CX(s) Applied: B5.1 Date:...

  16. CX-005747: Categorical Exclusion Determination | Department of...

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

    Determination CX-005747: Categorical Exclusion Determination Biobased Materials Automotive Value Chain Market Development Analysis CX(s) Applied: A9 Date: 05042011...

  17. CX-012117: Categorical Exclusion Determination | Department of...

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

    Exclusion Determination CX-012117: Categorical Exclusion Determination Fuel Cell Hybrid Walk-In Van Deployment Project CX(s) Applied: A9 Date: 05212014 Location(s):...

  18. CX-005892: Categorical Exclusion Determination | Department of...

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

    Determination CX-005892: Categorical Exclusion Determination Columbia River Inter-Tidal Fish Commission Use of White Bluffs Boat Launch and Hanford Town Boat Ramp for Salmon...

  19. CX-002773: Categorical Exclusion Determination | Department of...

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

    Determination CX-002773: Categorical Exclusion Determination Idaho Department of Fish and Game Purchase of Crystal Springs Trout Farm - Snake River Sockeye Captive...

  20. CX-000586: Categorical Exclusion Determination | Department of...

    Energy Savers [EERE]

    Exclusion Determination CX-000586: Categorical Exclusion Determination 25A1455 - Carbon Dioxide Capture with Enzyme Synthetic Analogue Date: 12152009 Location(s):...

  1. CX-012247: Categorical Exclusion Determination | Department of...

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

    Determination CX-012247: Categorical Exclusion Determination Installation of Solar Photovoltaic Systems CX(s) Applied: A9, B5.16 Date: 06182014 Location(s): Wisconsin, Wisconsin...

  2. CX-006539: Categorical Exclusion Determination | Department of...

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

    Exclusion Determination CX-006539: Categorical Exclusion Determination Boulder Wind Power Advanced Gearless Drivetrain CX(s) Applied: A9, B3.6 Date: 08252011 Location(s):...

  3. CX-009898: Categorical Exclusion Determination | Department of...

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

    Exclusion Determination CX-009898: Categorical Exclusion Determination 25A1455 - CO2 Capture with Enzyme Synthetic Analogue CX(s) Applied: B3.6 Date: 12152009...

  4. CX-009710: Categorical Exclusion Determination | Department of...

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

    Exclusion Determination CX-009710: Categorical Exclusion Determination Spring Creek - Wine County No. 1 Transmission Tower Relocation CX(s) Applied: B4.6 Date: 11292012...

  5. CX-000571: Categorical Exclusion Determination | Department of...

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

    Categorical Exclusion Determination CX-000571: Categorical Exclusion Determination Photovoltaic Panel Installation (Building 833, TA-I) CX(s) Applied: B5.1 Date: 12102009...

  6. CX-008563: Categorical Exclusion Determination | Department of...

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

    Exclusion Determination CX-008563: Categorical Exclusion Determination Northeast Photovoltaic Regional Training Provider CX(s) Applied: A9, A11, B3.14 Date: 06132012...

  7. CX-007872: Categorical Exclusion Determination | Department of...

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

    Exclusion Determination CX-007872: Categorical Exclusion Determination Northeast Photovoltaic Regional Training Provider CX(s) Applied: A9, A11, B3.14 Date: 01272012...

  8. CX-007873: Categorical Exclusion Determination | Department of...

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

    Exclusion Determination CX-007873: Categorical Exclusion Determination Northeast Photovoltaic Regional Training Provider CX(s) Applied: A9, A11, B3.14 Date: 01272012...

  9. CX-009914: Categorical Exclusion Determination | Department of...

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

    Determination CX-009914: Categorical Exclusion Determination Plug & Play Solar Photovoltaic for American Homes CX(s) Applied: A9, B3.6 Date: 01282013 Location(s):...

  10. CX-000653: Categorical Exclusion Determination | Department of...

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

    Determination CX-000653: Categorical Exclusion Determination Helios - Project: Photovoltaic Crystalline Module Assembly Plant CX(s) Applied: B5.1 Date: 01272010 Location(s):...

  11. CX-007867: Categorical Exclusion Determination | Department of...

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

    Exclusion Determination CX-007867: Categorical Exclusion Determination Northeast Photovoltaic Regional Training Provider CX(s) Applied: A9, A11, B5.16 Date: 01272012...

  12. CX-005993: Categorical Exclusion Determination | Department of...

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

    Exclusion Determination CX-005993: Categorical Exclusion Determination Northeast Photovoltaic Regional Training Provider CX(s) Applied: A9, A11, B5.1 Date: 05262011...

  13. CX-001393: Categorical Exclusion Determination | Department of...

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

    Determination CX-001393: Categorical Exclusion Determination High Penetration of Photovoltaic Generation - Award Number DE-EE0002060 Date: 03212010 Location(s): Arizona...

  14. CX-001654: Categorical Exclusion Determination | Department of...

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

    Determination CX-001654: Categorical Exclusion Determination Burlington County Photovoltaic (PV) System CX(s) Applied: B5.1 Date: 04092010 Location(s): County of Burlington,...

  15. CX-003378: Categorical Exclusion Determination | Department of...

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

    Categorical Exclusion Determination CX-003378: Categorical Exclusion Determination Photovoltaic Solar Cell Fabrication Alkaline Texturing Process Improvement CX(s) Applied: B3.6...

  16. CX-011621: Categorical Exclusion Determination | Department of...

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

    Determination CX-011621: Categorical Exclusion Determination Windy Gap-Granby Pumping Plant and Granby Pumping Plant-Mary's Lake (West Portal) 69-kilovolt Transmission...

  17. CX-002511: Categorical Exclusion Determination | Department of...

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

    Exclusion Determination CX-002511: Categorical Exclusion Determination Rhode Island Green Public Buildings Initiative CX(s) Applied: A9, B5.1 Date: 05282010 Location(s):...

  18. CX-000988: Categorical Exclusion Determination | Department of...

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

    988: Categorical Exclusion Determination CX-000988: Categorical Exclusion Determination Green Energy Works - Combined Heat and Power - Geisinger Medical Center CX(s) Applied: A9,...

  19. CX-002945: Categorical Exclusion Determination | Department of...

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

    Exclusion Determination CX-002945: Categorical Exclusion Determination Pennsylvania Green Energy Works Targeted Grant - Native Energy Biogas Project CX(s) Applied: B1.15,...

  20. CX-007365: Categorical Exclusion Determination | Department of...

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

    Exclusion Determination CX-007365: Categorical Exclusion Determination Integration of the Green Lane Energy Biogas Generator CX(s) Applied: B1.7 Date: 11172011 Location(s):...

  1. CX-008228: Categorical Exclusion Determination | Department of...

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

    Categorical Exclusion Determination CX-008228: Categorical Exclusion Determination Hydropower Energy Resource (HyPER) Harvester CX(s) Applied: A9 Date: 04112012 Location(s):...

  2. CX-003856: Categorical Exclusion Determination | Department of...

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

    Determination CX-003856: Categorical Exclusion Determination Road Prison Geothermal Earth Coupled Heating, Ventilation and Air Conditioning (HVAC) Upgrade CX(s) Applied: B5.1...

  3. CX-007003: Categorical Exclusion Determination | Department of...

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

    Determination CX-007003: Categorical Exclusion Determination Missile System Low-Earth Orbit Nanosatellite Integrated Defense Autonomous System Component Development CX(s)...

  4. CX-002034: Categorical Exclusion Determination | Department of...

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

    Determination CX-002034: Categorical Exclusion Determination Road Prison Geothermal Earth Coupled Heating, Ventilation, and Air Conditioning Upgrade CX(s) Applied: B3.1, A9...

  5. CX-006083: Categorical Exclusion Determination | Department of...

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

    Exclusion Determination CX-006083: Categorical Exclusion Determination Ground Source Heat Pump Installation - Lac Qui Parle County Courthouse, Minnesota CX(s) Applied: B5.1 Date:...

  6. CX-001197: Categorical Exclusion Determination | Department of...

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

    Determination CX-001197: Categorical Exclusion Determination Geothermal Heat Pump System for New Student Housing at University at Albany
    CX(s) Applied:...

  7. CX-009579: Categorical Exclusion Determination | Department of...

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

    Exclusion Determination CX-009579: Categorical Exclusion Determination Wind Turbine Installation for Town of Drummond CX(s) Applied: B5.18 Date: 12192012 Location(s):...

  8. CX-002856: Categorical Exclusion Determination | Department of...

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

    Exclusion Determination CX-002856: Categorical Exclusion Determination Wind Turbine Development CX(s) Applied: B3.6, A9 Date: 07022010 Location(s): Bozeman, Montana...

  9. CX-001642: Categorical Exclusion Determination | Department of...

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

    Exclusion Determination CX-001642: Categorical Exclusion Determination Wind Turbine Castings Manufacturer CX(s) Applied: B5.1 Date: 04072010 Location(s): Wisconsin...

  10. CX-003230: Categorical Exclusion Determination | Department of...

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

    Exclusion Determination CX-003230: Categorical Exclusion Determination Wind Turbine Gearbox Remanufacturing CX(s) Applied: B2.2, B5.1 Date: 08042010 Location(s):...

  11. CX-003198: Categorical Exclusion Determination | Department of...

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

    Determination CX-003198: Categorical Exclusion Determination High Efficiency Low Cost Solar Cells (HELSOLAR) CX(s) Applied: B3.6 Date: 08042010 Location(s): California...

  12. CX-009299: Categorical Exclusion Determination | Department of...

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

    Categorical Exclusion Determination CX-009299: Categorical Exclusion Determination Optimization of Pressurized Oxy-Combustion with Flameless Reactor - Phase I CX(s) Applied: B3.6...

  13. CX-009298: Categorical Exclusion Determination | Department of...

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

    Categorical Exclusion Determination CX-009298: Categorical Exclusion Determination Optimization of Pressurized Oxy-Combustion with Flameless Reactor - Phase I CX(s) Applied: B3.6...

  14. CX-012201: Categorical Exclusion Determination | Department of...

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

    Categorical Exclusion Determination CX-012201: Categorical Exclusion Determination Optimization of Microwave Telecommunication System ON Line Nevada Transmission Project, f.k.a....

  15. CX-003164: Categorical Exclusion Determination | Department of...

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

    Categorical Exclusion Determination CX-003164: Categorical Exclusion Determination Optimization of Biomass Production Across a Landscape CX(s) Applied: A9 Date: 07262010...

  16. CX-003632: Categorical Exclusion Determination | Department of...

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

    Categorical Exclusion Determination CX-003632: Categorical Exclusion Determination Analysis of Evaporator Scale Sample CX(s) Applied: B3.6 Date: 08102010 Location(s): Aiken,...

  17. CX-003163: Categorical Exclusion Determination | Department of...

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

    Exclusion Determination CX-003163: Categorical Exclusion Determination Technical Analysis for Geothermal System CX(s) Applied: A9, B3.1 Date: 07082010 Location(s): South...

  18. CX-001616: Categorical Exclusion Determination | Department of...

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

    6: Categorical Exclusion Determination CX-001616: Categorical Exclusion Determination Analysis of Multiple Pathways for Converting Coal to Liquid Transportation Fuels CX(s)...

  19. CX-002549: Categorical Exclusion Determination | Department of...

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

    Exclusion Determination CX-002549: Categorical Exclusion Determination Technical Analysis for Geothermal System CX(s) Applied: B3.1, A9 Date: 05192010 Location(s): South...

  20. CX-008011: Categorical Exclusion Determination | Department of...

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

    Determination CX-008011: Categorical Exclusion Determination Install EMSL Super-Computer Power Infrastructure CX(s) Applied: B1.7 Date: 06302011 Location(s): Washington...

  1. CX-001247: Categorical Exclusion Determination | Department of...

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

    Categorical Exclusion Determination CX-001247: Categorical Exclusion Determination Biodiesel Tank Installation, Solar Installations, and Home Upgrades CX(s) Applied: A1, A9,...

  2. CX-006825: Categorical Exclusion Determination | Department of...

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

    Exclusion Determination CX-006825: Categorical Exclusion Determination Wisconsin Biodiesel Blending Program CX(s) Applied: A9, B5.1 Date: 09292011 Location(s): Milwaukee,...

  3. CX-006474: Categorical Exclusion Determination | Department of...

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

    Categorical Exclusion Determination CX-006474: Categorical Exclusion Determination Biodiesel Crusher and Dryer Facility Upgrades CX(s) Applied: B5.1 Date: 08092011...

  4. CX-000998: Categorical Exclusion Determination | Department of...

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

    Categorical Exclusion Determination CX-000998: Categorical Exclusion Determination Biodiesel Infrastructure Project (Coulee) CX(s) Applied: A1, A9, B5.1 Date: 01272010...

  5. CX-000712: Categorical Exclusion Determination | Department of...

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

    Categorical Exclusion Determination CX-000712: Categorical Exclusion Determination Biodiesel Infrastructure Project (Coulee) CX(s) Applied: A1, A9, B5.1 Date: 01272010...

  6. CX-006500: Categorical Exclusion Determination | Department of...

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

    Determination CX-006500: Categorical Exclusion Determination Magellan Des Moines Biodiesel Terminal Project CX(s) Applied: B5.1 Date: 09062011 Location(s): Des Moines, Iowa...

  7. CX-009028: Categorical Exclusion Determination | Department of...

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

    Exclusion Determination CX-009028: Categorical Exclusion Determination "Wisconsin Biodiesel Blending Program CX(s) Applied: B5.22 Date: 08222012 Location(s): Wisconsin...

  8. CX-008615: Categorical Exclusion Determination | Department of...

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

    Exclusion Determination CX-008615: Categorical Exclusion Determination Cleaning of Depleted Uranium Metal CX(s) Applied: B3.6 Date: 06262012 Location(s): South Carolina...

  9. CX-002698: Categorical Exclusion Determination | Department of...

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

    98: Categorical Exclusion Determination CX-002698: Categorical Exclusion Determination Seismic Testing (Under Task 5 of Statement of Project Objectives) CX(s) Applied: B3.1 Date:...

  10. CX-003495: Categorical Exclusion Determination | Department of...

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

    5: Categorical Exclusion Determination CX-003495: Categorical Exclusion Determination Seismic Fracture Characterization Methodologies for Enhanced Geothermal Systems CX(s) Applied:...

  11. CX-005052: Categorical Exclusion Determination | Department of...

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

    Determination CX-005052: Categorical Exclusion Determination Shoot 2-Dimensional Seismic at Characterization Site CX(s) Applied: B3.1 Date: 01192011 Location(s): Craig,...

  12. CX-001422: Categorical Exclusion Determination | Department of...

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

    Determination CX-001422: Categorical Exclusion Determination A 3D-3C Reflection Seismic Survey and Data Integration to Identify the Seismic Response of Fractures and...

  13. CX-011510: Categorical Exclusion Determination | Department of...

    Office of Environmental Management (EM)

    Categorical Exclusion Determination CX-011510: Categorical Exclusion Determination Thermal-Chemical Decomposition of Graphite CX(s) Applied: B3.6 Date: 10172013 Location(s):...

  14. CX-004173: Categorical Exclusion Determination | Department of...

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

    Categorical Exclusion Determination CX-004173: Categorical Exclusion Determination Steam Reforming Treatability Study with Savannah River Site Low Activity Waste (LAW) (Module...

  15. CX-003040: Categorical Exclusion Determination | Department of...

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

    40: Categorical Exclusion Determination CX-003040: Categorical Exclusion Determination Propane Corridor Development Program CX(s) Applied: A1, A7, B5.1 Date: 07132010...

  16. CX-003757: Categorical Exclusion Determination | Department of...

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

    Categorical Exclusion Determination CX-003757: Categorical Exclusion Determination Propane Vehicle Conversion CX(s) Applied: A1, A9, B5.1 Date: 09082010 Location(s):...

  17. CX-002974: Categorical Exclusion Determination | Department of...

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

    74: Categorical Exclusion Determination CX-002974: Categorical Exclusion Determination Propane Corridor Development Program - Greenville, South Carolina CX(s) Applied: A1, A7, B5.1...

  18. CX-001297: Categorical Exclusion Determination | Department of...

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

    Exclusion Determination CX-001297: Categorical Exclusion Determination Clean Start Propane Refueling, Vehicle Incentive and Outreach CX(s) Applied: A7 Date: 03222010...

  19. CX-003024: Categorical Exclusion Determination | Department of...

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

    Exclusion Determination CX-003024: Categorical Exclusion Determination Clean Start Propane Refueling, Vehicle Incentive and Outreach CX(s) Applied: B5.1 Date: 07132010...

  20. CX-002972: Categorical Exclusion Determination | Department of...

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

    2: Categorical Exclusion Determination CX-002972: Categorical Exclusion Determination Propane Corridor Development Program - Traveler's Rest, South Carolina CX(s) Applied: A1, A7,...

  1. CX-010839: Categorical Exclusion Determination | Department of...

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

    Exclusion Determination CX-010839: Categorical Exclusion Determination Raman and Absorption Spectroscopy CX(s) Applied: B3.6 Date: 07312013 Location(s): South Carolina...

  2. CX-003877: Categorical Exclusion Determination | Department of...

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

    Determination CX-003877: Categorical Exclusion Determination Hybrid MembraneAbsorption Process for Post-Combustion Carbon Dioxide Capture CX(s) Applied: B3.6 Date: 0910...

  3. CX-010838: Categorical Exclusion Determination | Department of...

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

    Exclusion Determination CX-010838: Categorical Exclusion Determination Raman and Absorption Spectroscopy CX(s) Applied: B3.6 Date: 07312013 Location(s): South Carolina...

  4. CX-010910: Categorical Exclusion Determination | Department of...

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

    Determination CX-010910: Categorical Exclusion Determination Hybrid Membrane-Absorption Carbon Dioxide (CO2) Capture Process CX(s) Applied: B3.6 Date: 09252013...

  5. CX-003876: Categorical Exclusion Determination | Department of...

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

    Determination CX-003876: Categorical Exclusion Determination Hybrid MembraneAbsorption Process for Post-Combustion Carbon Dioxide Capture CX(s) Applied: B3.6 Date: 0910...

  6. CX-004394: Categorical Exclusion Determination | Department of...

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

    Determination CX-004394: Categorical Exclusion Determination Hybrid MembraneAbsorption Process for Post-Combustion Carbon Dioxide Capture CX(s) Applied: B3.6 Date: 1105...

  7. CX-010911: Categorical Exclusion Determination | Department of...

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

    Determination CX-010911: Categorical Exclusion Determination Hybrid Membrane-Absorption Carbon Dioxide (CO2) Capture Process CX(s) Applied: B3.6 Date: 09252013...

  8. CX-007663: Categorical Exclusion Determination | Department of...

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

    Categorical Exclusion Determination CX-007663: Categorical Exclusion Determination Construction of a Connector Road Between the Construction Administration Complex (CAC) and the...

  9. CX-005684: Categorical Exclusion Determination | Department of...

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

    Categorical Exclusion Determination CX-005684: Categorical Exclusion Determination Construction and Operation of a Cask Processing Enclosure (CPE) at the Transuranic (TRU) Waste...

  10. CX-001992: Categorical Exclusion Determination | Department of...

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

    Exclusion Determination CX-001992: Categorical Exclusion Determination Northern New Mexico (NM) College CX(s) Applied: B5.1 Date: 02222010 Location(s): Espanola, New Mexico...

  11. CX-010132: Categorical Exclusion Determination | Department of...

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

    Exclusion Determination CX-010132: Categorical Exclusion Determination 235-F Risk Reduction and Deactivation CX(s) Applied: B1.28 Date: 03122013 Location(s): South...

  12. Aging of concrete structures in nuclear power plants

    SciTech Connect (OSTI)

    Naus, D.J.; Pland, C.B. (Oak Ridge National Lab., TN (USA)); Arndt, E.G. (Nuclear Regulatory Commission, Washington, DC (USA))

    1991-01-01T23:59:59.000Z

    The Structural Aging (SAG) Program, sponsored by the US Nuclear Regulatory Commission (USNRC) and conducted by the Oak Ridge National Laboratory (ORNL), had the overall objective of providing the USNRC with an improved basis for evaluating nuclear power plant structures for continued service. The program consists of three technical tasks: materials property data base, structural component assessment/repair technology, and quantitative methodology for continued service determinations. Major accomplishments under the SAG Program during the first two years of its planned five-year duration have included: development of a Structural Materials Information Center and formulation of a Structural Aging Assessment Methodology for Concrete Structures in Nuclear Power Plants. 9 refs.

  13. Price determination for breeding bulls

    E-Print Network [OSTI]

    Namken, Jerry Carl

    1987-01-01T23:59:59.000Z

    of Oammittee) Ra A. ietrzch C. J ~) Daru. I (Heai of August l987 Price Detezlainatian for Breeding Bulls. (August 1987) Jerry Carl Namkan, B. S. , Texas A&M University; Chair of Advisory Committee: Dr. Donald E. Ferris A study using two different data... sets was conducted to determine the factors affecting the price of zmg~ Hereford hulls. In the first data set, both ~ and lagged national ~ feeder steer, utility cow, and crude oil prices, and net farm income were analyzed in a regzmsion procedure...

  14. Crystal face temperature determination means

    DOE Patents [OSTI]

    Nason, D.O.; Burger, A.

    1994-11-22T23:59:59.000Z

    An optically transparent furnace having a detection apparatus with a pedestal enclosed in an evacuated ampule for growing a crystal thereon is disclosed. Temperature differential is provided by a source heater, a base heater and a cold finger such that material migrates from a polycrystalline source material to grow the crystal. A quartz halogen lamp projects a collimated beam onto the crystal and a reflected beam is analyzed by a double monochromator and photomultiplier detection spectrometer and the detected peak position in the reflected energy spectrum of the reflected beam is interpreted to determine surface temperature of the crystal. 3 figs.

  15. Liquid chromatographic determination of water

    DOE Patents [OSTI]

    Fortier, N.E.; Fritz, J.S.

    1990-11-13T23:59:59.000Z

    A sensitive method for the determination of water in the presence of common interferences is presented. The detection system is based on the effect of water on the equilibrium which results from the reaction aryl aldehydes, such as cinnamaldehyde and methanol in the eluent to form cinnamaldehyde dimethylacetal, plus water. This equilibrium is shifted in a catalytic atmosphere of a hydrogen ion form past column reactor. The extent of the shift and the resulting change in absorbance are proportional to the amount of water present. 1 fig.

  16. Photonic Crystal Laser-Driven Accelerator Structures

    SciTech Connect (OSTI)

    Cowan, Benjamin M.

    2007-08-22T23:59:59.000Z

    Laser-driven acceleration holds great promise for significantly improving accelerating gradient. However, scaling the conventional process of structure-based acceleration in vacuum down to optical wavelengths requires a substantially different kind of structure. We require an optical waveguide that (1) is constructed out of dielectric materials, (2) has transverse size on the order of a wavelength, and (3) supports a mode with speed-of-light phase velocity in vacuum. Photonic crystals---structures whose electromagnetic properties are spatially periodic---can meet these requirements. We discuss simulated photonic crystal accelerator structures and describe their properties. We begin with a class of two-dimensional structures which serves to illustrate the design considerations and trade-offs involved. We then present a three-dimensional structure, and describe its performance in terms of accelerating gradient and efficiency. We discuss particle beam dynamics in this structure, demonstrating a method for keeping a beam confined to the waveguide. We also discuss material and fabrication considerations. Since accelerating gradient is limited by optical damage to the structure, the damage threshold of the dielectric is a critical parameter. We experimentally measure the damage threshold of silicon for picosecond pulses in the infrared, and determine that our structure is capable of sustaining an accelerating gradient of 300 MV/m at 1550 nm. Finally, we discuss possibilities for manufacturing these structures using common microfabrication techniques.

  17. Variably porous structures

    DOE Patents [OSTI]

    Braun, Paul V. (Savoy, IL); Yu, Xindi (Urbana, IL)

    2011-01-18T23:59:59.000Z

    A method of making a monolithic porous structure, comprises electrodepositing a material on a template; removing the template from the material to form a monolithic porous structure comprising the material; and electropolishing the monolithic porous structure.

  18. NUCLEAR STRUCTURE DATABASE

    E-Print Network [OSTI]

    Firestone, R.B.

    2010-01-01T23:59:59.000Z

    CALIFORNIA NUCLEAR STRUCTURE DATABASE R. B. Firestone and E.11089 NUCLEAR STRUCTURE DATABASE by R.B. Firestone and E.iii- NUCLEAR STRUCTURE DATABASE R.B Firestone and E. Browne

  19. Nanostructure Determination by Co-Refining Models to Multiple Datasets

    SciTech Connect (OSTI)

    Billinge, Simon

    2011-05-31T23:59:59.000Z

    The results of the work are contained in the publications resulting from the grant (which are listed below). Here I summarize the main findings from the last period of the award, 2006-2007: • Published a paper in Science with Igor Levin outlining the “Nanostructure Problem”, our inability to solve structure at the nanoscale. • Published a paper in Nature demonstrating the first ever ab-initio structure determination of a nanoparticle from atomic pair distribution function (PDF) data. • Published one book and 3 overview articles on PDF methods and the nanostructure problem. • Completed a project that sought to find a structural response to the presence of the so-called “intermediate phase” in network glasses which appears close to the rigidity percolation threshold in these systems. The main result was that we did not see convincing evidence for this, which drew into doubt the idea that GexSe1-x glasses were a model system exhibiting rigidity percolation.

  20. Determination of a mutational spectrum

    DOE Patents [OSTI]

    Thilly, William G. (Winchester, MA); Keohavong, Phouthone (Cambridge, MA)

    1991-01-01T23:59:59.000Z

    A method of resolving (physically separating) mutant DNA from nonmutant DNA and a method of defining or establishing a mutational spectrum or profile of alterations present in nucleic acid sequences from a sample to be analyzed, such as a tissue or body fluid. The present method is based on the fact that it is possible, through the use of DGGE, to separate nucleic acid sequences which differ by only a single base change and on the ability to detect the separate mutant molecules. The present invention, in another aspect, relates to a method for determining a mutational spectrum in a DNA sequence of interest present in a population of cells. The method of the present invention is useful as a diagnostic or analytical tool in forensic science in assessing environmental and/or occupational exposures to potentially genetically toxic materials (also referred to as potential mutagens); in biotechnology, particularly in the study of the relationship between the amino acid sequence of enzymes and other biologically-active proteins or protein-containing substances and their respective functions; and in determining the effects of drugs, cosmetics and other chemicals for which toxicity data must be obtained.

  1. Theoretical determination of the spectral and luminescence properties of complex molecules to assess their lasing capacity

    SciTech Connect (OSTI)

    Gruzinskii, V.V.; Danilova, V.I.; Kopylova, T.N.; Maier, V.G.; Shalaev, V.K.

    1981-08-01T23:59:59.000Z

    A method of determining the lasing capacity of complex molecules is proposed. This is based on general theory of intramolecular excitation energy redistribution processes and quantum-chemical calculations of the electronic structure, oscillator strengths, and loss spectra in systems of triplet and singlet excited states. The nature of the forbidden and allowed excited states is determined and laws governing changes in the spectral and luminescence characteristics, essential for laser action are determined for a large class of benzoxazoles as a function of the molecular structure. Lasing compounds are identified and laser action is reported for new compounds in the ultraviolet.

  2. Sandia Energy - Structural Health Monitoring

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

    Structural Health Monitoring Home Stationary Power Energy Conversion Efficiency Wind Energy Materials, Reliability, & Standards Structural Health Monitoring Structural Health...

  3. Structure of plant bile pigments

    SciTech Connect (OSTI)

    Schoenleber, R.W.

    1983-12-01T23:59:59.000Z

    Selective peptide cleavage has provided a general procedure for the study of the structure, including stereochemistry, of plant bile pigments. The information derived from the synthesis and spectral analysis of a series of 2,3-dihydrodioxobilins allows the determination of the trans relative stereochemistry for ring A of the ..beta../sub 1/-phycocyanobilin from C-phycocyanin as well as for ring A of phytochrome. A complete structure proof of the five phycoerythrobilins attached to the ..cap alpha.. and ..beta.. subunits of B-phycoerythrin is described. One of these tetrapyrroles is doubly-peptide linked to a single peptide chain through two thioethers at the C-3' and C-18' positions. The four remaining phycoerythrobilins are singly-linked to the protein through thioethers at the C-3' position and all possess the probable stereochemistry C-2(R), C-3(R), C-3'(R), and C-16(R).

  4. Syntheses, Structure, Magnetism, and Optical Properties of the Interlanthanide Sulfides delta-Ln2-xLuxS3 (Ln = Ce, Pr, Nd)

    E-Print Network [OSTI]

    Jin, Geng Bang

    2008-01-01T23:59:59.000Z

    Syntheses, Structure, Magnetism, and Optical Properties ofstructure determination, magnetism, and optical propertiesSusceptibility Measurements. Magnetism data were measured on

  5. Life extension of structural components via an improved nondestructive testing methodology

    E-Print Network [OSTI]

    Hohmann, Brian P. (Brian Patrick)

    2010-01-01T23:59:59.000Z

    An experimental study was performed to determine the flaw detection sensitivity of advanced nondestructive testing (NDT) techniques with respect to structural applications. The techniques analyzed exemplify the incorporation ...

  6. Maintenance-based design of concrete parking structures

    E-Print Network [OSTI]

    Stoakes, Christopher D. (Christopher David)

    2007-01-01T23:59:59.000Z

    The purpose of this study is to determine what type of preventative maintenance for a concrete parking structure will produce the maximum economic benefit. Existing models for concrete deterioration are analyzed for their ...

  7. Evaluation of the Effects of Porous Media Structure on Mixing...

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

    of the Effects of Porous Media Structure on Mixing-Controlled Reactions Using Pore-Scale Modeling and Micromodel Abstract: The objectives of this work were to determine if a...

  8. anchors structural connectors: Topics by E-print Network

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

    influence and the alignment is determined by the structure of the interface between the brush and the pure solvent instead. Harald Lange; Friederike Schmid 2002-05-15 37 Cell...

  9. Young of XSD Named Associate Editor of New Journal "Structural...

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

    implementation and use of new tools for the determination of static and time-evolving structures." It will begin accepting submissions in the fall of 2013. Co-published by the...

  10. Nonlinear structural crack growth monitoring

    DOE Patents [OSTI]

    Welch, Donald E. (Oak Ridge, TN); Hively, Lee M. (Philadelphia, TN); Holdaway, Ray F. (Clinton, TN)

    2002-01-01T23:59:59.000Z

    A method and apparatus are provided for the detection, through nonlinear manipulation of data, of an indicator of imminent failure due to crack growth in structural elements. The method is a process of determining energy consumption due to crack growth and correlating the energy consumption with physical phenomena indicative of a failure event. The apparatus includes sensors for sensing physical data factors, processors or the like for computing a relationship between the physical data factors and phenomena indicative of the failure event, and apparatus for providing notification of the characteristics and extent of such phenomena.

  11. Structural Characteristics of Synthetic Amorphous Calcium Carbonate

    SciTech Connect (OSTI)

    Michel, F. Marc; MacDonald, Jason; Feng, Jian; Phillips, Brian L.; Ehm, Lars; Tarabrella, Cathy; Parise, John B.; Reeder, Richard J. (SBU)

    2008-08-06T23:59:59.000Z

    Amorphous calcium carbonate (ACC) is an important phase involved in calcification by a wide variety of invertebrate organisms and is of technological interest in the development of functional materials. Despite widespread scientific interest in this phase a full characterization of structure is lacking. This is mainly due to its metastability and difficulties in evaluating structure using conventional structure determination methods. Here we present new findings from the application of two techniques, pair distribution function analysis and nuclear magnetic resonance spectroscopy, which provide new insight to structural aspects of synthetic ACC. Several important results have emerged from this study of ACC formed in vitro using two common preparation methods: (1) ACC exhibits no structural coherence over distances > 15 {angstrom} and is truly amorphous; (2) most of the hydrogen in ACC is present as structural H{sub 2}O, about half of which undergoes restricted motion on the millisecond time scale near room temperature; (3) the short- and intermediate-range structure of ACC shows no distinct match to any known structure in the calcium carbonate system; and (4) most of the carbonate in ACC is monodentate making it distinctly different from monohydrocalcite. Although the structure of synthetic ACC is still not fully understood, the results presented provide an important baseline for future experiments evaluating biogenic ACC and samples containing certain additives that may play a role in stabilization of ACC, crystallization kinetics, and final polymorph selection.

  12. Structural model of uramarsite

    SciTech Connect (OSTI)

    Rastsvetaeva, R. K., E-mail: rast@ns.crys.ras.ru [Russian Academy of Sciences, Shubnikov Institute of Crystallography (Russian Federation); Sidorenko, G. A. [All-Russia Research Institute of Mineral Resources (VIMS) (Russian Federation); Ivanova, A. G. [Russian Academy of Sciences, Shubnikov Institute of Crystallography (Russian Federation); Chukanov, N. V. [Russian Academy of Sciences, Institute of Problems of Chemical Physics (Russian Federation)

    2008-09-15T23:59:59.000Z

    The structural model of uramarsite, a new mineral of the uran-mica family from the Bota-Burum deposit (South Kazakhstan), is determined using a single-crystal X-ray diffraction analysis. The parameters of the triclinic unit cell are as follows: a = 7.173(2) A, b = 7.167(5) A, c = 9.30(1) A, {alpha} = 90.13(7){sup o}, {beta} = 90.09(4){sup o}, {gamma} = 89.96(4){sup o}, and space group P1. The crystal chemical formula of uramarsite is: (UO{sub 2}){sub 2}[AsO{sub 4}][PO{sub 4},AsO{sub 4}][NH{sub 4}][H{sub 3}O] . 6H{sub 2}O (Z = 1). Uramarsite is the second ammonium-containing mineral of uranium and an arsenate analogue of uramphite. In the case of uramarsite, the lowering of the symmetry from tetragonal to triclinic, which is accompanied by a triclinic distortion of the tetragonal unit cell, is apparently caused by the ordering of the As and P atoms and the NH{sub 4}, H{sub 3}O, and H{sub 2}O groups.

  13. Earth Structure Introduction

    E-Print Network [OSTI]

    Earth Structure Introduction Earth Structure (2nd Edition), 2004 W.W. Norton & Co, New York Slide show by Ben van der Pluijm © WW Norton, unless noted otherwise #12;© EarthStructure (2nd ed) 210/4/2010 Aerial views #12;© EarthStructure (2nd ed) 310/4/2010 http://www.globalchange.umich.edu/Ben/ES/ #12

  14. Modeling Fission Product Sorption in Graphite Structures

    SciTech Connect (OSTI)

    Szlufarska, Izabela [University of Wisconsin, Madison, WI (United States); Morgan, Dane [University of Wisconsin, Madison, WI (United States); Allen, Todd [University of Wisconsin, Madison, WI (United States)

    2013-04-08T23:59:59.000Z

    The goal of this project is to determine changes in adsorption and desorption of fission products to/from nuclear-grade graphite in response to a changing chemical environment. First, the project team will employ principle calculations and thermodynamic analysis to predict stability of fission products on graphite in the presence of structural defects commonly observed in very high- temperature reactor (VHTR) graphites. Desorption rates will be determined as a function of partial pressure of oxygen and iodine, relative humidity, and temperature. They will then carry out experimental characterization to determine the statistical distribution of structural features. This structural information will yield distributions of binding sites to be used as an input for a sorption model. Sorption isotherms calculated under this project will contribute to understanding of the physical bases of the source terms that are used in higher-level codes that model fission product transport and retention in graphite. The project will include the following tasks: Perform structural characterization of the VHTR graphite to determine crystallographic phases, defect structures and their distribution, volume fraction of coke, and amount of sp2 versus sp3 bonding. This information will be used as guidance for ab initio modeling and as input for sorptivity models; Perform ab initio calculations of binding energies to determine stability of fission products on the different sorption sites present in nuclear graphite microstructures. The project will use density functional theory (DFT) methods to calculate binding energies in vacuum and in oxidizing environments. The team will also calculate stability of iodine complexes with fission products on graphite sorption sites; Model graphite sorption isotherms to quantify concentration of fission products in graphite. The binding energies will be combined with a Langmuir isotherm statistical model to predict the sorbed concentration of fission products on each type of graphite site. The model will include multiple simultaneous adsorbing species, which will allow for competitive adsorption effects between different fission product species and O and OH (for modeling accident conditions).

  15. Heterogeneity and dynamics in villin headpiece crystal structures

    SciTech Connect (OSTI)

    Meng, Jianmin; McKnight, Christopher James, E-mail: cjmck@bu.edu [Boston University School of Medicine (United States)

    2009-05-01T23:59:59.000Z

    New crystal structures of the well studied protein-folding model system villin headpiece in a new space group provide insights into the conformations available in the folded state. The villin headpiece domain (HP67) is the C-terminal F-actin-binding motif that confers F-actin-bundling activity to villin, a component of the actin bundles that support the brush-border microvilli. It has been investigated extensively by both experimental and theoretical measurements. Our laboratory, for example, has determined both its NMR and its crystal structures. This study presents the structures of HP67 and its pH-stabilized mutant (H41Y) in a different crystal form and space group. For both constructs, two molecules are found in each asymmetric unit in the new space group P6{sub 1}. While one of the two structures (Mol A) is structurally similar to our previously determined structure (Mol X), the other (Mol B) has significant deviations, especially in the N-terminal subdomain, where lattice contacts do not appear to contribute to the difference. In addition, the structurally most different crystal structure, Mol B, is actually closer to the averaged NMR structure. Harmonic motions, as suggested by the B-factor profiles, differ between these crystal structures; crystal structures from the same space group share a similar pattern. Thus, heterogeneity and dynamics are observed in different crystal structures of the same protein even for a protein as small as villin headpiece.

  16. MCSNA: Experimental Benchmarking of Pu Electronic Structure

    SciTech Connect (OSTI)

    Tobin, J G

    2007-01-29T23:59:59.000Z

    The objective of this work is to develop and/or apply advanced diagnostics to the understanding of aging of Pu. Advanced characterization techniques such as photoelectron and x-ray absorption spectroscopy will provide fundamental data on the electronic structure of Pu phases. These data are crucial for the validation of the electronic structure methods. The fundamental goal of this project is to narrow the parameter space for the theoretical modeling of Pu aging. The short-term goal is to perform experiments to validate electronic structure calculations of Pu. The long-term goal is to determine the effects of aging upon the electronic structure of Pu. Many of the input parameters for aging models are not directly measurable. These parameters will need to be calculated or estimated. Thus a First Principles-Approach Theory is needed, but it is unclear what terms are important in the Hamiltonian. (H{Psi} = E{Psi}) Therefore, experimental data concerning the 5f electronic structure are needed, to determine which terms in the Hamiltonian are important. The data obtained in this task are crucial for reducing the uncertainty of Task LL-01-developed models and predictions. The data impact the validation of electronic structure methods, the calculation of defect properties, the evaluation of helium diffusion, and the validation of void nucleation models. The importance of these activities increases if difficulties develop with the accelerating aging alloy approach.

  17. Structural Genomics of Minimal Organisms: Pipeline and Results

    SciTech Connect (OSTI)

    Kim, Sung-Hou; Shin, Dong-Hae; Kim, Rosalind; Adams, Paul; Chandonia, John-Marc

    2007-09-14T23:59:59.000Z

    The initial objective of the Berkeley Structural Genomics Center was to obtain a near complete three-dimensional (3D) structural information of all soluble proteins of two minimal organisms, closely related pathogens Mycoplasma genitalium and M. pneumoniae. The former has fewer than 500 genes and the latter has fewer than 700 genes. A semiautomated structural genomics pipeline was set up from target selection, cloning, expression, purification, and ultimately structural determination. At the time of this writing, structural information of more than 93percent of all soluble proteins of M. genitalium is avail able. This chapter summarizes the approaches taken by the authors' center.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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