Sample records for ox yg enates

  1. OxCORT v4 Quick Guide Student Guide To OxCORT

    E-Print Network [OSTI]

    Oxford, University of

    into the field below. Topic ­ To search for reports relating to a particular topic enter one or all the words roles: · Student role Topics · How To Access OxCORT pg 1 · Viewing Reports pg 2 - Searching for reportsCORT 1. Open your web browser (internet explorer, firefox or similar). 2. Enter the address www

  2. Hole Selective MoOx Contact for Silicon Solar Cells Corsin Battaglia,,,

    E-Print Network [OSTI]

    Javey, Ali

    Hole Selective MoOx Contact for Silicon Solar Cells Corsin Battaglia,,, Xingtian Yin,,,§, Maxwell Laboratory, Xi'an Jiaotong University, Xi'an, 710049 Shaanxi, People's Republic of China Joint Center/silicon solar cell with a power conversion efficiency of 14.3%. While MoOx is commonly considered

  3. Electric field control of domain wall propagation in Pt/Co/GdOx films

    E-Print Network [OSTI]

    Bauer, Uwe

    The influence of a gate voltage on domain wall (DW) propagation is investigated in ultrathin Pt/Co/gadolinium oxide (GdOx) films with perpendicular magnetic anisotropy. The DW propagation field can be enhanced or retarded ...

  4. Interfacial current-induced torques in Pt/Co/GdOx

    E-Print Network [OSTI]

    Emori, Satoru

    Current-driven domain wall (DW) motion is investigated in Pt/Co/GdOx nanostrips with perpendicular magnetic anisotropy. Measurements of the propagation field and the energy barrier for thermally activated DW motion reveal ...

  5. Combustion Synthesis and Characterization of Nanocrystalline Tin and Tin Oxide (SnOx, x 02) Particles

    E-Print Network [OSTI]

    Wooldridge, Margaret S.

    Combustion Synthesis and Characterization of Nanocrystalline Tin and Tin Oxide (SnOx, x 0 the concentration of oxygen in the reactant gases and the flame temperatures, metallic tin (Sn), tin monoxide (romarchite SnO), and/or tin dioxide (cassiterite SnO2) were generated. The crystalline powders consisted

  6. Correlation Between Optical Properties And Chemical Composition Of Sputter-deposited Germanium Cxide (GeOx) Films

    SciTech Connect (OSTI)

    Murphy, Neil R.; Grant, J. T.; Sun, L.; Jones, J. G.; Jakubiak, R.; Shutthanandan, V.; Ramana, Chintalapalle V.

    2014-03-18T23:59:59.000Z

    Germanium oxide (GeOx) films were grown on (1 0 0) Si substrates by reactive Direct-Current (DC) magnetron sputter-deposition using an elemental Ge target. The effects of oxygen gas fraction, ? = O2/(Ar + O2), on the deposition rate, structure, chemical composition and optical properties of GeOx films have been investigated. The chemistry of the films exhibits an evolution from pure Ge to mixed Ge + GeO + GeO2 and then finally to GeO2 upon increasing ? from 0.00 to 1.00. Grazing incidence X-ray analysis indicates that the GeOx films grown were amorphous. The optical properties probed by spectroscopic ellipsometry indicate that the effect of ? is significant on the optical constants of the GeOx films. The measured index of refraction (n) at a wavelength (?) of 550 nm is 4.67 for films grown without any oxygen, indicating behavior characteristic of semiconducting Ge. The transition from germanium to mixed Ge + GeO + GeO2 composition is associated with a characteristic decrease in n (? = 550 nm) to 2.62 and occurs at ? = 0.25. Finally n drops to 1.60 for ? = 0.50–1.00, where the films become GeO2. A detailed correlation between ?, n, k and stoichiometry in DC sputtered GeOx films is presented and discussed.

  7. Centre for the Study of African Economies Department of Economics . University of Oxford . Manor Road Building . Oxford OX1 3UQ

    E-Print Network [OSTI]

    Oxford, University of

    .enquiries@economics.ox.ac.uk . W: www.csae.ox.ac.uk CSAE Working Paper WPS/2014 18 Employment Creation, Poverty and the Structure the evidence is reviewed as to how far the more rapid growth of recent years has translated into poverty reduction and how these poverty measures link to job creation. There is evidence that the headcount measure

  8. Centre for the Study of African Economies Department of Economics . University of Oxford . Manor Road Building . Oxford OX1 3UQ

    E-Print Network [OSTI]

    Oxford, University of

    .enquiries@economics.ox.ac.uk . W: www.csae.ox.ac.uk 1 CSAE Working Paper WPS/2014 17 Growth, Inequality, and Poverty in Sub Saharan of income and inequality changes to poverty reduction for a large number of countries in sub Saharan Africa (SSA). The study begins by shedding light on SSA's progress on poverty. Next, it presents data on how

  9. For more travel information, please visit-www.ox.ac.uk/visitors_friends/maps_and_directions/directions.html

    E-Print Network [OSTI]

    Henderson, Gideon

    will be Friday 18 January 2013. The Department offers a wide range of Graduate Studies Projects. A list of projects can be found on the Department web page: www.earth.ox.ac.uk/graduate_admissions/graduate_projects_2013-14. You may apply for an existing project, or propose your own. Applications are invited from

  10. Local stress-induced effects on AlGaAs/AlOx oxidation front shape

    SciTech Connect (OSTI)

    Chouchane, F.; Almuneau, G., E-mail: almuneau@laas.fr; Arnoult, A.; Lacoste, G.; Fontaine, C. [CNRS, LAAS, 7 avenue du colonel Roche, F-31400 Toulouse (France); Univ de Toulouse, UPS, LAAS, F-31400 Toulouse (France); Cherkashin, N. [Univ de Toulouse, UPS, LAAS, F-31400 Toulouse (France); CNRS, CEMES, 29 Rue Jeanne Marvig, 31055 Toulouse Cedex 4 (France)

    2014-07-28T23:59:59.000Z

    The lateral oxidation of thick AlGaAs layers (>500?nm) is studied. An uncommon shape of the oxide tip is evidenced and attributed to the embedded stress distribution, inherent to the oxidation reaction. Experimental and numerical studies of the internal strain in oxidized Al{sub x}Ga{sub 1?x}As/GaAs structures were carried out by dark-field electron holography and finite element methods. A mapping of the strain distribution around the AlGaAs/oxide interface demonstrates the main role of internal stress on the shaping of the oxide front. These results demonstrate the high relevance of strain in oxide-confined III-V devices, in particular, with over-500-nm thick AlOx confinement layers.

  11. NF-kB activity-dependent P-selectin involved in ox-LDL-induced foam cell formation in U937 cell

    SciTech Connect (OSTI)

    Wang, Yi, E-mail: wangyi2004a@126.com [Department of Cardiology, Shanghai First People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200080 (China)] [Department of Cardiology, Shanghai First People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200080 (China); Wang, Xiang; Sun, Minghui; Zhang, Zhenyu; Cao, Heng; Chen, Xiaoqing [Department of Cardiology, Shanghai First People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200080 (China)] [Department of Cardiology, Shanghai First People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200080 (China)

    2011-08-05T23:59:59.000Z

    Highlights: {yields} Ox-LDL induced foam cell formation in the human U937 promonocytic cell line in a dose- and time-dependent manner. {yields} Ox-LDL induced expression of P-selectin through degradation of IkBa and augment of NF-kB activity and protein level during macrophage-derived foam cell formation. {yields} P-selectin and NF-kB may be identified as pivotal regulators of ox-LDL-induced foam cell formation. {yields} Therapy based on the inhibition of P-selectin and NF-kB may complement conventional treatments to prevent atherosclerosis. -- Abstract: Oxidized low-density lipoprotein (ox-LDL) plays a critical role in regulation of atherosclerosis. However, little is known about the role of Nuclear factor kB (NF-kB) activity-dependent P-selectin in ox-LDL-induced foam cell formation during atherosclerosis. In this study, we first investigated ox-LDL induced foam cell formation in the human U937 promonocytic cell line in a dose- and time-dependent manner. Treatment of U937 cells with ox-LDL increased lipid accumulation as well as intracellular cholesterol content. Next, a comparative analysis of gene expression profiling using cDNA microarray and Real-time-PCR indicated that ox-LDL exposure induced, in three treated groups, an extremely marked increase in the mRNA level of P-selectin. Protein levels of P-selectin and its upstream regulators IkBa and NF-kB showed that NF-kB pathway is involved in the ox-LDL-induced foam cell formation. Finally, overexpression of NF-kB significantly accelerated, whereas, inhibition of NF-kB with siRNA remarkably attenuated ox-LDL-induced macrophage-derived foam cell formation. It was concluded that the activity of NF-kB is augmented during macrophage-derived foam cell formation. Activation of NF-kB increased, whereas, inhibition of NF-kB decreased ox-LDL-induced P-selectin expression and lipid accumulation in macrophages, suggesting ox-LDL induced expression of P-selectin through degradation of IkBa and activation of NF-kB in the regulation of foam cell formation.

  12. Multiple Roles of Component Proteins in Bacterial Multicomponent Monooxygenases: Phenol Hydroxylase and Toluene/o-Xylene Monooxygenase from Pseudomonas sp. OX1

    E-Print Network [OSTI]

    Tinberg, Christine E.

    Phenol hydroxylase (PH) and toluene/o-xylene monooxygenase (ToMO) from Pseudomonas sp. OX1 require three or four protein components to activate dioxygen for the oxidation of aromatic substrates at a carboxylate-bridged ...

  13. ICP-PECVD PRODUCTION TOOL FOR INDUSTRIAL AlOX AND Si-BASED PASSIVATION LAYERS B.F.P. Roos1

    E-Print Network [OSTI]

    of different materials on silicon solar wafers using inductively coupled plasma (ICP). One of the major features of the ICP technology is the high plasma density at low kinetic ion energy. These plasma on the SINGULAR production tool platform is discussed. A special focus will be placed on a-SiOxNy/SiNx and Al

  14. An experimental and theoretical investigation of the structure and reactivity of bilayered VOx/TiOx/SiO2 catalysts for methanol oxidation

    E-Print Network [OSTI]

    Bell, Alexis

    /TiOx/SiO2 catalysts for methanol oxidation William C. Vining, Anthony Goodrow, Jennifer Strunk, Alexis T Accepted 22 December 2009 Available online 2 February 2010 Keywords: Vanadia Silica Titania Methanol vanadia surface density (0.7 V/nm2 ), the turnover frequency for methanol oxidation to formaldehyde

  15. Hierarchical heterogeneity at the CeOx-TiO? interface: Electronic and geometric structural influence on the photocatalytic activity of oxide on oxide nanostructures

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

    Luo, Si [Brookhaven National Lab. (BNL), Upton, NY (United States); Nguyen-Phan, Thuy-Duong [Brookhaven National Lab. (BNL), Upton, NY (United States); Johnston-Peck, Aaron C. [Brookhaven National Lab. (BNL), Upton, NY (United States); Barrio, Laura [CSIC - Inst. de Catalisis y Petroleoquimica, Madrid (Spain); Sallis, Shawn [Binghamton Univ., NY (United States); Arena, Dario A. [Brookhaven National Lab. (BNL), Upton, NY (United States); Kundu, Shankhamala [Brookhaven National Lab. (BNL), Upton, NY (United States); Xu, Wenqian [Brookhaven National Lab. (BNL), Upton, NY (United States); Piper, Louis F. J. [Binghamton Univ., NY (United States); Stach, Eric A. [Brookhaven National Lab. (BNL), Upton, NY (United States); Polyansky, Dmitry E. [Brookhaven National Lab. (BNL), Upton, NY (United States); Fujita, Etsuko [Brookhaven National Lab. (BNL), Upton, NY (United States); Rodriguez, José A. [Brookhaven National Lab. (BNL), Upton, NY (United States); CSIC - Inst. de Catalisis y Petroleoquimica, Madrid (Spain); Senanayake, Sanjaya D. [Brookhaven National Lab. (BNL), Upton, NY (United States)

    2015-01-27T23:59:59.000Z

    Mixed oxide interfaces are critical for delivering active components of demanding catalytic processes such as the photo-catalytic splitting of water. We have studied CeOxTiO? catalysts with low ceria loadings of 1 wt%, 3 wt% and 6 wt% that were prepared with wet impregnation methods to favor a strong interaction between CeOx and TiO?. In these materials the interfaces between CeOx-TiO? have been sequentially loaded (1%, 3% and 6%), with and without Pt (0.5 wt%). The structure and properties of the catalysts were characterized using several X-ray and electron based techniques including XRD, XPS, UPS, NEXAFS, UV-Vis and HR-STEM/STEM-EELS, to unravel the local morphology, bulk structure, surface states and electronic structure. The combination of all these techniques allow us to analyze in a systematic way the complete structural and electronic properties that prevail at the CeOx-TiO? interface. Fluorite structured nano crystallites of ceria on anatase-structured titania were identified by both XRD and NEXAFS. A sequential increasing of the CeOx loading led to the formation of clusters, then plates and finally nano particles in a hierarchical manner on the TiO? support. The electronic structures of these catalysts indicate that the interaction between TiO? and CeO? is closely related to the local morphology of nanostructured CeO?. Ce³? cations were detected at the surface of CeO? and at the interface of the two oxides. In addition, the titania is perturbed by the interaction with ceria and also with Pt. The photocatalytic activity for the splitting of H?O using UV light was measured for these materials and correlated with our understanding of the electronic and structural properties. Optimal catalytic performance and photo response results were found for the 1 wt% CeOx-TiO? catalyst where low dimensional geometry of the ceria provided ideal electronic and geometrical properties. The structural and electronic properties of the interface were critical for the photocatalytic performance of this mixed-oxide nanocatalyst system.

  16. Hierarchical heterogeneity at the CeOx-TiO? interface: Electronic and geometric structural influence on the photocatalytic activity of oxide on oxide nanostructures

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

    Luo, Si; Nguyen-Phan, Thuy-Duong; Johnston-Peck, Aaron C.; Barrio, Laura; Sallis, Shawn; Arena, Dario A.; Kundu, Shankhamala; Xu, Wenqian; Piper, Louis F. J.; Stach, Eric A.; et al

    2015-01-27T23:59:59.000Z

    Mixed oxide interfaces are critical for delivering active components of demanding catalytic processes such as the photo-catalytic splitting of water. We have studied CeOxTiO? catalysts with low ceria loadings of 1 wt%, 3 wt% and 6 wt% that were prepared with wet impregnation methods to favor a strong interaction between CeOx and TiO?. In these materials the interfaces between CeOx-TiO? have been sequentially loaded (1%, 3% and 6%), with and without Pt (0.5 wt%). The structure and properties of the catalysts were characterized using several X-ray and electron based techniques including XRD, XPS, UPS, NEXAFS, UV-Vis and HR-STEM/STEM-EELS, to unravelmore »the local morphology, bulk structure, surface states and electronic structure. The combination of all these techniques allow us to analyze in a systematic way the complete structural and electronic properties that prevail at the CeOx-TiO? interface. Fluorite structured nano crystallites of ceria on anatase-structured titania were identified by both XRD and NEXAFS. A sequential increasing of the CeOx loading led to the formation of clusters, then plates and finally nano particles in a hierarchical manner on the TiO? support. The electronic structures of these catalysts indicate that the interaction between TiO? and CeO? is closely related to the local morphology of nanostructured CeO?. Ce³? cations were detected at the surface of CeO? and at the interface of the two oxides. In addition, the titania is perturbed by the interaction with ceria and also with Pt. The photocatalytic activity for the splitting of H?O using UV light was measured for these materials and correlated with our understanding of the electronic and structural properties. Optimal catalytic performance and photo response results were found for the 1 wt% CeOx-TiO? catalyst where low dimensional geometry of the ceria provided ideal electronic and geometrical properties. The structural and electronic properties of the interface were critical for the photocatalytic performance of this mixed-oxide nanocatalyst system.« less

  17. GeOx/Reduced Graphene Oxide Composite as an Anode for Li-ion Batteries: Enhanced Capacity via Reversible Utilization of Li2O along with Improved Rate Performance

    SciTech Connect (OSTI)

    Lv, Dongping; Gordin, Mikhail; Yi, Ran; Xu, Terrence (Tianren); Song, Jiangxuan; Jiang, Yingbing; Choi, Daiwon; Wang, Donghai

    2014-09-01T23:59:59.000Z

    A self-assembled GeOx/reduced graphene oxide (GeOx/RGO) composite, where GeOx nanoparticles were grown directly on reduced graphene oxide sheets, was synthesized via a facile one-step reduction approach and studied by X-ray diffraction, transmission electron microscopy, energy dispersive X-ray spectroscopy, electron energy loss spectroscopy elemental mapping, and other techniques. Electrochemical evaluation indicates that incorporation of reduced graphene oxide enhances both the rate capability and reversible capacity of GeOx, with the latter being due to the RGO enabling reversible utilization of Li2O. The composite delivers a high reversible capacity of 1600 mAhg-1 at a current density of 100 mAg-1, and still maintains a capacity of 410 mAhg-1 at a high current density of 20 Ag-1. Owing to the flexible reduced graphene oxide sheets enwrapping the GeOx particles, the cycling stability of the composite was also improved significantly. To further demonstrate its feasibility in practical applications, the synthesized GeOx/RGO composite anode was successfully paired with a high voltage LiNi0.5Mn1.5O4 cathode to form a full cell, which showed good cycling and rate performance.

  18. ox.ac.uk

    E-Print Network [OSTI]

    2008-06-18T23:59:59.000Z

    Jun 9, 2008 ... generation” and “step acceptance/rejection”. ... are conceptually quite different, Curtis and Nocedal [11] have shown that a “flexible”.

  19. The structure of ordered Au films on TiOx M.S. Chen, K. Luo, D. Kumar, W.T. Wallace, C.-W. Yi, K.K. Gath, D.W. Goodman *

    E-Print Network [OSTI]

    Goodman, Wayne

    The structure of ordered Au films on TiOx M.S. Chen, K. Luo, D. Kumar, W.T. Wallace, C.-W. Yi, K.K-welded to the backside of the sample. The XPS data were collected using a Mg Ka source with an incident angle of 45

  20. Continuous Hyperplastic Models for Overconsolidated ClaysContinuous Hyperplastic Models for Overconsolidated Clays Visit us at: "www.technion.ac.il" and "www-civil.eng.ox.ac.uk"

    E-Print Network [OSTI]

    Houlsby, Guy T.

    Continuous Hyperplastic Models for Overconsolidated ClaysContinuous Hyperplastic Models for Overconsolidated Clays Visit us at: "www.technion.ac.il" and "www-civil.eng.ox.ac.uk" I. Einav and A.M. Puzrin for the formulation of realistic models for the triaxial behaviour of overconsolidated clays at both small and large

  1. Spatially-resolved EELS and EDS Analysis of HfOxNy Gate Dielectrics Deposited by MOCVD using [(C2H5)2N]4Hf with NO and O2

    E-Print Network [OSTI]

    Ng, Wai Tung

    -resolved electron energy loss spectroscopy (EELS) and energy-dispersive spectrometry (EDS). HfOxNy gate dielectrics a replacement for SiO2 as the gate dielectric material. HfO2 is a promising candidate due to its high dielectric constant its stability on Si. However, crystallization temperatures of less than 500 °C and high impurity

  2. 28/05/2009 16:25Global links will breed more dangerous parasites -University of Oxford Page 1 of 2http://www.ox.ac.uk/media/news_stories/2009/090528_3.html

    E-Print Network [OSTI]

    West, Stuart

    28/05/2009 16:25Global links will breed more dangerous parasites - University of Oxford Page 1 of 2http://www.ox.ac.uk/media/news_stories/2009/090528_3.html Global links will breed more dangerous that as the world becomes more connected so natural selection will favour more dangerous parasites. The team, from

  3. 15N2 formation and fast oxygen isotope exchange during pulsed 15N18O exposure of MnOx/CeO2

    SciTech Connect (OSTI)

    Kwak, Ja Hun; Szanyi, Janos

    2014-12-23T23:59:59.000Z

    Pulsing 15N18O onto an annealed 1% Mn16Ox/Ce16O2 catalyst resulted in very fast oxygen isotope exchange and 15N2 formation at 295 K. In the 1st 15N18O pulse, due to the presence of large number of surface oxygen defects, extensive 15N218O and 15N2 formations were observed. In subsequent pulses oxygen isotope exchange dominated as a result of highly labile oxygen in the oxide. We gratefully acknowledge the US Department of Energy (DOE), Office of Energy Efficiency and Renewable Energy/Vehicle Technologies Program for the support of this work. The research described in this paper was performed at the Environmental Molecular Sciences Laboratory (EMSL), a national scientific user facility sponsored by the DOE’s Office of Biological and Environmental Research and located at Pacific Northwest National Laboratory (PNNL). PNNL is operated for the US DOE by Battelle.

  4. Cobalt-iron red-ox behavior in nanostructured La{sub 0.4}Sr{sub 0.6}Co{sub 0.8}Fe{sub 0.2}O{sub 3-{delta}} cathodes

    SciTech Connect (OSTI)

    Soldati, Analia L., E-mail: asoldati@cab.cnea.gov.ar [CONICET-CNEA Departamento de Caracterizacion de Materiales, Centro Atomico Bariloche, Av. Bustillo 9500, S.C. de Bariloche R8402AGP, Rio Negro (Argentina); Baque, Laura, E-mail: baque.laura@gmail.com [CONICET-CNEA Departamento de Caracterizacion de Materiales, Centro Atomico Bariloche, Av. Bustillo 9500, S.C. de Bariloche R8402AGP, Rio Negro (Argentina)] [CONICET-CNEA Departamento de Caracterizacion de Materiales, Centro Atomico Bariloche, Av. Bustillo 9500, S.C. de Bariloche R8402AGP, Rio Negro (Argentina); Napolitano, Federico, E-mail: napolitf@ib.cab.cnea.gov.ar [CONICET-CNEA Departamento de Caracterizacion de Materiales, Centro Atomico Bariloche, Av. Bustillo 9500, S.C. de Bariloche R8402AGP, Rio Negro (Argentina)] [CONICET-CNEA Departamento de Caracterizacion de Materiales, Centro Atomico Bariloche, Av. Bustillo 9500, S.C. de Bariloche R8402AGP, Rio Negro (Argentina); Serquis, Adriana, E-mail: aserquis@cab.cnea.gov.ar [CONICET-CNEA Departamento de Caracterizacion de Materiales, Centro Atomico Bariloche, Av. Bustillo 9500, S.C. de Bariloche R8402AGP, Rio Negro (Argentina)] [CONICET-CNEA Departamento de Caracterizacion de Materiales, Centro Atomico Bariloche, Av. Bustillo 9500, S.C. de Bariloche R8402AGP, Rio Negro (Argentina)

    2013-02-15T23:59:59.000Z

    Nano-sized La{sub 0.4}Sr{sub 0.6}Co{sub 0.8}Fe{sub 0.2}O{sub 3-{delta}} (LSCF) perovskite samples (prepared by a conventional acetate route and a novel acetate synthesis with HMTA additives), were tested simulating a red-ox cycle. The crystallography was studied by X-ray Powder Diffraction (XPD) and the changes in the oxidation state of the perovskite B-site were evaluated by synchrotron X-ray Absorption Near Edge Spectroscopy (XANES). After a reducing treatment, LSFC particles show the appearance of a new phase that coexists with the original one. The structural change is accompanied by a Co and Fe formal oxidation states decrease, although Fe remains always closer to 4+ and Co closer to 3+. The treatment produces a B-site valence average reduction from 3.52+ to 3.26+ and the formation of oxygen vacancies. A re-oxidation treatment under O{sub 2} rich atmosphere at 800 Degree-Sign C for 10 h shows that the change is reversible and independent of the two chemical methods used to synthesize the LSCF nano-particles. - Graphical abstract: XANES and XPD measurements in nanostructured LSCF before (black) and after (red/green) a red/ox cycle. Highlights: Black-Right-Pointing-Pointer Red-ox treatments in LSCF nano-particles cause a reversible reaction. Black-Right-Pointing-Pointer XPD analyses show that a new 'reduced' phase coexist with the oxidize one. Black-Right-Pointing-Pointer The B-site formal oxidation state decreases and the {delta} increases upon reduction. Black-Right-Pointing-Pointer Fe remains in a higher valence (closer to 4+) than Co (close to 3+). Black-Right-Pointing-Pointer The behavior seems to be independent of the synthesis method used.

  5. Jules Verne LE DOCTEUR OX

    E-Print Network [OSTI]

    Har?El, Zvi

    'avenir. ..........................................................35 VII Où les andante deviennent des allegro et les allegro des vivace

  6. Jules Verne LE DOCTEUR OX

    E-Print Network [OSTI]

    Har?El, Zvi

    'avenir. ..........................................................36 VII Où les andante deviennent des allegro et les allegro des vivace

  7. New Processing and Characterization Approaches for Achieving Full Performance of High Temperature Superconducting Tapes of (Bi,Pb)2Sr2Ca2Cu3Ox

    SciTech Connect (OSTI)

    E.E. Hellstrom; D.C. Larbalestier

    2006-03-22T23:59:59.000Z

    The thrust of this research was to identify and understand current limiting mechanisms (CLMs) that limit the current carrying capacity of (Bi,Pb)2Sr2Ca2Cu3Ox (2223) in Ag-sheathed wire. Our program concentrated on developing new methods to identify CLMs at the micrometer scale and new processing techniques to eliminate CLMs. All of the DOE Superconductivity Partnership Initiative (SPI) programs are using 2223 wire, so increasing the critical current density (Jc) in the wire can improve the technical performance of the demonstration projects, and at the same time it can decrease the cost of the wire. The important cost metric for superconducting wire is $/kA?m, so increasing Jc, which is in the denominator, decreases the wire cost. The obvious CLMs were micrometer size obstacles in the 2223 ceramic that block current flow, including: misaligned grains, cracks, pores, and nonsuperconducting phases. Pores and cracks - regions where there is no superconductor or the grains are not physically connected to one another ? cannot carry supercurrent, so they were the first CLMs we tried to eliminate with improved processing. Prior to the contract, we had started investigating overpressure (OP) processing with Williams at ORNL to heal cracks and remove pores. OP processing, which is a variant of hot isostatic pressing (HIP), uses an Ar/O2 gas mixture to apply a high pressure (up to 200 atm) to compress the sample and to set the oxygen partial pressure (pO2) to form 2223. Williams had a static pressure system we used to demonstrate that OP processing healed cracks and densified the wire, but the static system limited the processing parameters we could investigate. We proposed building a new gas-flow OP system to expand the experimental capabilities and to investigate new processing routes using the gas-flow OP system. Using the gas-flow OP system, we established new world records in 2003 for Jc and Ic. These records were finally matched by Sumitomo Electric Company in early 2006. The finest scale at which we could probe the local electromagnetic properties of a sample was about 100 ?m at the beginning of the contract. This was done by attaching voltage taps (10 ?m diameter wires) about 100 ?m apart on the 2223 conductor, and measuring the local I-V characteristics between each set of voltage taps. However, the largest CLMs were 2-3 times smaller than this length scale, and most CLMs were even much smaller. The original proposal was to investigate new methods to identify specific regions in samples that contained CLMs from their electromagnetic response, then to examine these regions of the sample using microstructural techniques to identify the CLM. We extended the use of magneto-optic (MO) imaging and magneto-optic current reconstruction (MOCR) and began developing a low-temperature laser scanning microscope (LTLSM) to show local current flow and local current dissipation, respectively, with a resolution of ~5 ?m. With MOCR we were able to show that local Jc in small regions of OP processed 2223 wire was as high as 300 kA/cm2 at 77K, which was 5-6 times higher than the average Jc measured across the whole sample.

  8. www.careers.ox.ac.uk ENGINEERING &

    E-Print Network [OSTI]

    Melham, Tom

    Carpmaels & Ransford Cisco Systems Contact Singapore Costello Medical Consulting Double Negative Visual Consulting CoreFiling Limited Defence Science and Technology Laboratory (DSTL) Dehns Delcam plc EDF Energy Huddle Imagination Technologies IMC Financial Markets J A Kemp Jaguar Land Rover JCB Lloyd's Register

  9. A study of insect resistance to chlorinated hydrocarbon insecticides--the effect of these compounds on oxidative metabolism

    E-Print Network [OSTI]

    Boyd, Vaughan Frank

    1959-01-01T23:59:59.000Z

    per Gra m of We ev il per Ho ur 19 Figure 3 - Oxygen Uptake of Untreated and Toxaphene Treated Pupae* Cu bi c Mi ll im et er s of Ox yg en per Gra m of We ev il per Ho ur 20 Figure 4 - Oxygen Uptake... ... 19 4 - Oxygen Uptake of Boll Weevil Pupae - Triton X-100 and Toxaphene Treated Pupae ....................................... 20 5 - One Day Old Adult Boll Weevils Reared on a Synthetic Diet - Oxygen Uptake of Untreated and Triton X-100 Treated...

  10. OxCORT v4 Quick Guide Tutorial Reports

    E-Print Network [OSTI]

    Oxford, University of

    the appropriate option from the drop-down. 6. Select the appropriate Term and Year. 7. Enter the usernames into four further topics: · Search for reports pg 2 · To view or edit a report pg 2 · To complete a Tutorial will allow you to search for, view, edit, submit, delete, clone, print, email from, and export data from both

  11. Transient PrOx carbon monoxide measurement, control, and optimization

    SciTech Connect (OSTI)

    Inbody, M. A. (Michael A.); Borup, R. L. (Rodney L.); Tafoya, J. (Jose I.)

    2002-01-01T23:59:59.000Z

    Fuel processing systems for low temperature polymer electrolyte membrane (PEM) fuel cell systems require control of the carbon monoxide concentration to less than 100 ppm to 10 ppm in the anode feed. Conventional hydrocarbon fuel processors use a water-gas shift (WGS) reactor to react CO with water to form H2 and reduce the CO concentration. The CO conversion is limited by equilibrium at the outlet temperature of the WGS reactor. The WGS outlet CO concentration can range from over 1% to 2000 ppm depending on the system and its operating parameters. At these concentrations, CO poisons low temperature PEM fuel cells and the concentrations needs to be reduced further.

  12. Low Cost SiOx-Graphite and Olivine Materials

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

    * Low energy * Poor cyclecalendar life Partners * V. Battaglia, V. Srinivasan (LBNL) * J. Goodenough (U. Texas) * P. Rotch (SNL) * C. Julien-A Mauger (U. Paris 6) Outline...

  13. Low Cost SiOx-Graphite and Olivine Materials

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

    * Low energy * Poor cyclecalendar life Partners * V. Battaglia, V. Srinivasan (LBNL) * J. Goodenough (U. Texas) * P. Roth (SNL) * C. Julien-A. Mauger (U. Paris 6) * D. Wu...

  14. SnOx Nanocrystallites Supported by Silica Nanostructures

    E-Print Network [OSTI]

    Wang, Zhong L.

    , it has been possible to reduce a Ni(III) solution in an electroless process on the surface of the nanospheres producing a ferromagnetic crystalline nickel coating6 of variable thickness. These results.g., nickel, silver), as they result from ex-situ processes, does not lend itself readily to the creation

  15. Competition between CoOx and CoPt phases in Pt/Co/AlOx semi tunnel H. Garad,1,a)

    E-Print Network [OSTI]

    Boyer, Edmond

    measurements,15 those commonly used are cross-sectional high resolution electron microscopy,16 in situ differential ellipsometry measurements coupled to x- ray photoelectron spectroscopy (XPS),17 ac impedance,18, i.e., variations of the resistance with the magnetic field, are measured at room temperature: 81

  16. animal breeding studies: Topics by E-print Network

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

    an4 sold at enation o 21 2, Important mes'bors of the Allen family of Walking Horses Xxi& number of animals inbx'e4 to cash Important...

  17. Understanding orchestrated chemical reactions in toluene/o-xylene monooxygenase from pseudomonas sporium OX1

    E-Print Network [OSTI]

    Song, Woon Ju

    2011-01-01T23:59:59.000Z

    Chapter 1. Geometric and Functional Versatility of Carboxylate-Bridged Nonheme- Diiron Motifs: sMMO and ToMO. Several metalloenzymes utilize a carboxylate-bridged non-heme diiron motif for dioxygen activation. Despite their ...

  18. Some lessons learned from 20 years in RedOx Flow Battery R&D

    E-Print Network [OSTI]

    balancing pressure (low p) Materials Novel nano-structured non- carbon electrodes Novel low cost option Now ubiquitous on all large wind farms Utilities understand them ­ and feed them Extensively must power itself and this imposes complex trade offs, e.g: High voltage couples and reactive

  19. Tribological Properties of Self-assembled Monolayers on Au, SiOx and Si Surfaces

    SciTech Connect (OSTI)

    KIM,HYUN I.; BOIADJIEV,V.; HOUSTON,JACK E.; ZHU,X.-Y; KIELY,J.D.

    2000-07-20T23:59:59.000Z

    Using interracial force microscopy (IFM), the tribological properties of self-assembled monolayer (SAM) on Si surfaces produced by a new chemical strategy are investigated and compared to those of classical SAM systems, which include alkanethiols on Au and alkylsilanes on SiO{sub x}. The new SAM films are prepared by depositing n-alkyl chains with OH-terminations onto Cl-terminated Si substrates. The chemical nature of the actual lubricating molecules, n-dodecyl, is kept constant in all three thin film systems for direct comparison and similarities and differences in tribological properties are observed. The adhesion strength is virtually identical for all three systems; however, frictional properties differ due to differences in film packing. Differences in the chemical bonds that attach the lubricant molecules to the substrate are also discussed as they influence variations in film wear and durability. It is demonstrated that the new SAM films are capable of controlling the friction and adhesion of Si surfaces as well as the classical SAMs in addition to providing a greater potential to be more reproducible and more durable.

  20. Synthesis and Characterization of Polymer-Coated Layered SiOx...

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

    component compatibility Partners * Jason Zhang (PNNL) * Gao Liu and Vince Battaglia (LBNL) * Nissan R&D Center (USA) 2 Overview Achieve high performance Si anode materials...

  1. Thermodynamic evaluation of the CoOx-CrO1.5 system Introduction

    E-Print Network [OSTI]

    are of great interest in Solid Oxide Fuel Cell (SOFC) technology. This is due to limitations in performance Fuel Cells and Solid State Chemistry Department, Risø National Laboratory, DTU, Denmark * jonas, there is an uncertainty in the present optimization for this area. Fig. 4 shows the calculated temperature dependence

  2. Employment Report WWW.SBS.OX.AC.UKMFE 2012-13 EMPLOYMENT REPORT

    E-Print Network [OSTI]

    Oxford, University of

    Students 12% Dual Nationality Class facts Geographical origin Africa2% Middle East5% South America3% Europe and salaries UK Rest of EEA Canada USA Middle East & North Africa India Rest of Asia Overall average Canada MBA graduates going to work in:- USA Middle East & N Africa India Rest of AsiaRest of EEA UK Students coming

  3. Employment Report WWW.SBS.OX.AC.UKMFE 2012-13 EMPLOYMENT REPORT

    E-Print Network [OSTI]

    Oxford, University of

    origin Africa2% Middle East5% South America3% Europe (excluding UK)12% Central Asia26% South East Asia6

  4. Low Cost SiOx-Graphite and High Voltage Spinel Cathode | Department of

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't YourTransport(FactDepartment ofLetterEconomy andTerms LoanLos AngelesGuillermo

  5. Low Cost SiOx-Graphite and Olivine Materials | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't YourTransport(FactDepartment ofLetterEconomy andTerms LoanLos AngelesGuillermo10 DOE Vehicle

  6. Low Cost SiOx-Graphite and Olivine Materials | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't YourTransport(FactDepartment ofLetterEconomy andTerms LoanLos AngelesGuillermo10 DOE Vehicle09

  7. Ordered zinc-vacancy induced Zn0.75Ox nanophase structure Yong Ding, Rusen Yang, Zhong Lin Wang *

    E-Print Network [OSTI]

    Wang, Zhong L.

    induced by Zn-vacancy has been discovered to grow on wurtzite ZnO nanobelts. The superstructure grows epitaxial from the f0110g surface of the wurtzite ZnO nanobelts and can be fitted as an orthorhombic surfaces of the wurtzite structured ZnO nanobelts and can be fitted as an orthorhombic structure

  8. Fabrication of Ti/TiOx tunneling barriers by tapping mode atomic force microscopy induced local oxidation

    E-Print Network [OSTI]

    Ludwig-Maximilians-Universität, München

    through thin 5 nm titanium films using the very local electric field between the tip and the sample the chamber is filled with pure nitrogen bubbling through deionised water. By mixing dry and humid nitrogen

  9. DOI: 10.1002/chem.200601602 Isolation of Rhenium and ReOx Species within ZSM5 Channels and their

    E-Print Network [OSTI]

    Iglesia, Enrique

    5 mixtures in air, and their subsequent reduction to Re0 in H2 or CH4 to form encapsulated Re metal oxidation · methane · propane · rhenium · zeolites [a] Dr. H. S. Lacheen, P. J. Cordeiro, Prof. E. Iglesia

  10. Special Publication No. 3, Ticks And Tickborne Diseases, I. Genera And Species Of Ticks, Part 3. Genera O-X

    E-Print Network [OSTI]

    Doss, Mildred A.; Farr, Marion M.; Roach, Katharine F.; Anastos, George

    1974-01-01T23:59:59.000Z

    . of Alectorobius (Pavlovskyella) asperus) Ornithodoros azteci Matheson, R. , (1935A), 347-353 (Hemiderma perspicil- latum aztecum, De smodus rotundus murinus; Panama) Briceno Iragorry, L. , and Ortiz, I. , (1956A), 45-46 ?erny, V., (1966C), 1-10 (Cuba) Cernf... nana; Cuba) Cooley, R. ?., (1942A), 77-84 (syn.: Ornithodoros azduzei) (Canal Zone, Venezuela, Panama & Cuba) Cooley, R. A. and Kohls, G. ?. , (1944A), 1-152 Davis, G. ?. , (1942A), 67-76 D?az-Ungr?a, ?., (1957A), 457-467 (Venezuela) Fairchild, G...

  11. Effects of Initial Pressure on the Flammability Limit of OX-Air Mixture with 20-L-Appartus

    E-Print Network [OSTI]

    Chen, Shu-Ching

    information on the reaction behaviors of the specific substance and possible fire and explosion hazards hazards may be encountered within the flammability limits. A fire or an explosion might occur if a flame limits, minimum oxygen concentration, maximum explosion overpressure, flammability zone), which were

  12. Dioxygen activation and substrate hydroxylation by the hydroxylase component of toluene/O-xylene monooxygenase from pseudomonas sporium OX1

    E-Print Network [OSTI]

    Murray, Leslie Justin

    2007-01-01T23:59:59.000Z

    Non-heme carboxylate-bridged diiron centers in the hydroxylase components of the bacterial multicomponent monooxygenases activate dioxygen at structurally homologous active sites. Catalysis requires the management of four ...

  13. Some Lessons Learned from 20 Years in RedOx Flow Battery R&d | Department

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn'tOriginEducationVideo »UsageSecretaryVideos Solid-State Lighting Videos On thisEnergy Moreof

  14. Numerical modeling of the transient behavior of a thermoelectric Electromagnetic Self-Induced Pump

    E-Print Network [OSTI]

    Djordjevic, Vladimir

    1988-01-01T23:59:59.000Z

    \\ g g t! vrvr Yg Y I rC ?gv ri Yg C rC "E i I ri Cr vg I ri Yg 'I E rCCC Cr rcr rCri r C I r t 'C I vgvgvg I I I 'Ci Ii'I Ii'C 'Cl 'Civic?Tv I E CE ck ck CC CC rvrvrv v v fr 'C 'C I 'CV tv'Cv I rc rc rc rc rc rc r C \\ I I C i I...

  15. Corso di Laurea in Ingegneria Meccanica Anno Accademico 2011/2012

    E-Print Network [OSTI]

    Demeio, Lucio

    di raggio R e centro C rotola senza strisciare sull'asse Ox del piano cartesiano O(x, y). Un'asta AB' asse Ox con vincolo liscio. Determinare per via geometrica il centro istantaneo di rotazione dell, presa come asse Ox di un sistema cartesiano nel piano verticale O(x, y). Due molle di costante elastica

  16. The Molecular and Physiological Basis for Temperature Mediated Regulation of Dwarfness in Tifdward Bermudagrass

    E-Print Network [OSTI]

    Abernathy, Scott

    2014-04-03T23:59:59.000Z

    of gibberellins in conditional dwarfism, expression patterns for GA20ox1, GA20ox2, GA3ox, GA2oxa, GA2oxb and GAMyb were analyzed. Under optimal temperatures, GA20ox2 and GA3ox expression were higher and GA2oxa expression was lower in TD than NM. Similar...

  17. A comparative study of the complexation of Np(V) with N,N-dimethyl-3-oxa-glutaramic acid and related ligands: thermodynamics, optical properties and structural aspects

    E-Print Network [OSTI]

    Rao, Linfeng

    2010-01-01T23:59:59.000Z

    P. Zhang, J. Wang and L. Rao, Solv. Extr. Ion Exch. 2005, Y.G. Modolo, C. Madic and F. Testard, Solv. Extr. Ion Exch. H.T. Yaita and S. Tachimori, Solv. Extr. Ion Exch. 2004, 22,

  18. Jong-Woo Kim

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

    M.B. Stone, J.C. Lang, J.-W. Kim, J.A. Schlueter, Y.G. Shi, K. Yamaura, Y.S. Sun, Y. Tsujimoto, A.D. Christianson, Phys. Rev. Lett. 108, 257209 (2012). "Quantifying octahedral...

  19. ABSTRACTS OF PAPERS PUBLISHED

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

    D.V. Shetty, S.J. Yennello, K. Wang, Y.G. Ma, Nucl. Phys. A837, 163 (2010). NIMROD-ISiS, A versatile tool for studying the Isotopic Degree of Freedom in Heavy Ion Collisions,...

  20. ENERGY AND ENVIRONMENT DIVISION ANNUAL REPORT 1978

    E-Print Network [OSTI]

    Cairns, E.L.

    2011-01-01T23:59:59.000Z

    problems associated with shale oil production. A variety ofelemental results for shale oil, 5~09 (yg/g + 2o) XRF 18. 2±fly ash (coal) Raw shale oil Spent shale Geothermal Boron in

  1. Molecular and biochemical characterization of three lipoxygenases in maize

    E-Print Network [OSTI]

    Nemchenko, Andriy

    2009-06-02T23:59:59.000Z

    6 5 0 Zm LO X1 0 (5 95) P H F R Y TME IN AL AR EAL IN AD GI IEE SF WP GK YA VEL SS VA YG ATW QF DT Zm LO X1 1 (60 0) P 6 H F R Y TME IN AL AR EAL IN AD GI IEE SF WP GR YA VEL SS AA YG ATW QF DT 5 1...

  2. The influence of nano-architectured CeOx supports in RhPd/CeO? for the catalytic ethanol steam reforming reaction

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

    Divins, N. J.; Senanayake, S. D.; Casanovas, A.; Xu, W.; Trovarelli, A.; Llorca, J.

    2015-09-01T23:59:59.000Z

    The ethanol steam reforming (ESR) reaction has been tested over RhPd supported on polycrystalline ceria in comparison to structured supports composed of nanoshaped CeO? cubes and CeO? rods tailored towards the production of hydrogen. At 650-700 K the hydrogen yield follows the trend RhPd/CeO?-cubes > RhPd/CeO? -rods > RhPd/CeO?- polycrystalline, whereas at temperatures higher than 800 K the catalytic performance of all samples is similar and close to the thermodynamic equilibrium. The improved performance of RhPd/CeO?-cubes and RhPd/CeO? -rods for ESR at low temperature is mainly ascribed to higher water-gas shift activity and a strong interaction between the bimetallic -more »oxide support interaction. STEM analysis shows the existence of RhPd alloyed nanoparticles in all samples, with no apparent relationship between ESR performance and RhPd particle size. X-ray diffraction under operating conditions shows metal reorganization on {100} and {110} ceria crystallographic planes during catalyst activation and ESR, but not on {111} ceria crystallographic planes. The RhPd reconstructing and tuned activation over ceria nanocubes and nanorods is considered the main reason for better catalytic activity with respect to conventional catalysts based on polycrystalline ceria« less

  3. Centre for the Study of African Economies Department of Economics . University of Oxford . Manor Road Building . Oxford OX1 3UQ

    E-Print Network [OSTI]

    Oxford, University of

    , Olivia D'Aoust , Olivier Sterck§ May 2014 Abstract We aim at understanding the triggers of electoral, Electoral violence, Polarization, Demobilization, Burundi JEL Classification: D74, O11, O17, O55 We thank, Antonio Estache, James Fenske, Anke Hoeffler, Davy Paindaveine, Cyrus Samii and Philip Verwimp

  4. EURATOM/CCFE Fusion Association, Culham Science Centre, Abingdon, Oxon OX14 3DB, UK. Pellet fuelling of plasmas with ELM mitigation by resonant

    E-Print Network [OSTI]

    ) where P is the power loss, is the fraction of power loss due to ELMs and ELMW is the maximum energy

  5. Development of the ReaxFF reactive force field for mechanistic studies of catalytic selective oxidation processes on BiMoOx

    E-Print Network [OSTI]

    van Duin, Adri

    report the use of ReaxFF to study the activation and conversion of propene to acrolein by various metal acrolein. The propene reations on V2O5 occur at lower temperatures than on Bi2O3 or Bi2Mo3O12. The results-metal­ oxide (MMO) catalysts, accounts for the majority of the 8 billion pounds of acrolein produced annually

  6. Accurate Measurement of 5-Methylcytosine and 5-Hydroxymethylcytosine in Human Cerebellum DNA by Oxidative Bisulfite on an Array (OxBS-Array)

    E-Print Network [OSTI]

    Field, Sarah F.; Beraldi, Dario; Bachman, Martin; Stewart, Sabrina K.; Beck, Stephan; Balasubramanian, Shankar

    2015-02-23T23:59:59.000Z

    , Whiteside C, Coleman PD, et al. (2010) Epigenetic changes in Alz- heimer’s disease: Decrements in DNAmethylation. Neurobiol Aging 31: 2025–2037. doi: 10.1016/j. neurobiolaging.2008.12.005 PMID: 19117641 15. Rudenko A, Dawlaty MM, Seo J, Cheng AW, Meng J, et... , Whiteside C, Coleman PD, et al. (2010) Epigenetic changes in Alz- heimer’s disease: Decrements in DNAmethylation. Neurobiol Aging 31: 2025–2037. doi: 10.1016/j. neurobiolaging.2008.12.005 PMID: 19117641 15. Rudenko A, Dawlaty MM, Seo J, Cheng AW, Meng J, et...

  7. Developmental Science 9:3 (2006), pp 237269 2006 The Authors. Journal compilation 2006 Blackwell Publishing Ltd., 9600 Garsington Road, Oxford OX4 2DQ, UK and

    E-Print Network [OSTI]

    Hansen, Peter

    impairments in dyslexia: a multiple case study of dyslexic children Sarah White,1 Elizabeth Milne,2,3 Stuart that characterizes dyslexia. Twenty-three children with dyslexia were compared to 22 control children, matched impairments. Introduction A classical account of the phonological theory of dyslexia assumes

  8. Analysis of Substrate Access to Active Sites in Bacterial Multicomponent Monooxygenase Hydroxylases: X-Ray Crystal Structure of Xenon-Pressurized Phenol Hydroxylase from Pseudomonas Sp Ox1

    E-Print Network [OSTI]

    McCormick, Michael S.

    In all structurally characterized bacterial multicomponent monooxygenase (BMM) hydroxylase proteins, a series of hydrophobic cavities in the ?-subunit trace a conserved path from the protein exterior to the carboxylate-bridged ...

  9. 520 IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY, VOL. 18, NO. 2, JUNE 2008 Electromechanical Behavior of Bi2Sr2CaCu2Ox

    E-Print Network [OSTI]

    strain margin. Recent coils with Bi2212 round wire have used W&R [9]. The coil is wound when conductor, and the magnet is wound between these heat treatments. Here we report results on the RWS "split melt process decomposition tem- perature of the Bi2212 phase and slowly cooling down to form a well-connected and aligned Bi

  10. An investigation of the TiOxSiO2/Mo(112) interface M.S. Chen, D.W. Goodman *

    E-Print Network [OSTI]

    Goodman, Wayne

    energy loss spectroscopy (HREELS); Titanium oxides; Silica film; Mixed oxides; Surface structure) has been studied using high-resolution electron energy loss spectro- scopy, Auger electron spectroscopy, low-energy electron diffraction, and molecular adsorption. Ti at varying coverages was deposited

  11. Characterization of a Peroxodiiron(III) Intermediate in the T201S Variant of Toluene/o-Xylene Monooxygenase Hydroxylase from Pseudomonas sp. OX1

    E-Print Network [OSTI]

    Song, Woon Ju

    We report the observation of a novel intermediate in the reaction of a reduced toluene/o-xylene monooxygenase hydroxylase (ToMOH[subscript red]) T201S variant, in the presence of a regulatory protein (ToMOD), with dioxygen. ...

  12. BULLETIN OF THE UNITED STATES FISII COMMISSION. 361 I II.--lSE"POKT OX?OPERATIONS A T TIIE BHAV-JIATCMJNG S'TATJON

    E-Print Network [OSTI]

    .GRABILL, Siqc?*idetukictof Battery Station. [Abstract.] The first run of shad was perceived on April 18, and 35 of the season in the batch- ing-house.

  13. Centre for the Study of African Economies Department of Economics . University of Oxford . Manor Road Building . Oxford OX1 3UQ

    E-Print Network [OSTI]

    Oxford, University of

    of this research was conducted during my stay at the National Team for the Acceleration of Poverty Reduction (TNP2K Working Paper WPS/2014-29 #12;1 Introduction Why do the poor stay poor? One explanation for poverty traps is the prevalence of con- spicuous consumption among the poor which hinders investments and savings (Neeman and Moav

  14. Centre for the Study of African Economies Department of Economics . University of Oxford . Manor Road Building . Oxford OX1 3UQ

    E-Print Network [OSTI]

    Oxford, University of

    Dercon1 Abstract With serious impacts of climate change looming in a few decades, but current poverty still high in the developing world, we ask how to spend development aid earmarked for the poor. Poverty deliver large scale poverty reduction? Can aid be used for effective poverty reduction now without

  15. Centre for the Study of African Economies Department of Economics . University of Oxford . Manor Road Building . Oxford OX1 3UQ

    E-Print Network [OSTI]

    Oxford, University of

    accelerations on poverty and inequality in Indonesia using a new panel dataset covering 26 provinces over of the economy. We find that growth in non-mining significantly reduces poverty and inequality. In contrast, overall growth and growth in mining appears to have no effect on poverty and inequality. We also identify

  16. Journal of Power Sources 124 (2003) 197203 Electrochemical characterization of a polypyrrole/Co0.2CrOx composite

    E-Print Network [OSTI]

    Popov, Branko N.

    such as polypyrrole, polyaniline and polythiophene have attracted attention as electrodes in batteries and super capacitors [7,8]. Polyaniline and polypyrrole (PPy) have been used in lithium ion batteries [9,10]. Apart

  17. PERPoI@UHcE HoDPz.LnIG OF PAufuLH.l ox4PtJTER ARamTEcluREs

    E-Print Network [OSTI]

    Imperial College, London

    of Computing, Imperial College, London SW'7232 Abstract In this paper we describe two types of complex server

  18. Supplementary Text S1. KD was calculated for binding of HMGB1a to CP-and OX-DNA in the TGGA, AGGC and CGGA

    E-Print Network [OSTI]

    Dokholyan, Nikolay V.

    in relaxation MD and 2 ps in production MD; constant temperature, using weak-coupling algorithm, at 300 K, heat of the atoms. Besides the atomic partial charges, other force field parameters of the Pt-GG adducts were referenced from AMBER parm99 force field parameters or from previous work by Yao et al(2). and Scheeff et al

  19. Centre for the Study of African Economies Department of Economics . University of Oxford . Manor Road Building . Oxford OX1 3UQ

    E-Print Network [OSTI]

    Oxford, University of

    commodities. A sustained increase in the price of renewables (wool) reduces inequality whreas the same for non-renewable that one of the key empirical foundations of the Engerman and Sokoloff argument is that inequality in Latin America was higher than North America. Perhaps, but what about Europe? Williamson (2010) and Milanovic et

  20. The Binding of Oxidized Low Density Lipoprotein to Mouse CD36 Is Mediated in Part by Oxidized Phospholipids That Are Associated

    E-Print Network [OSTI]

    Dennis, Edward A.

    Friedman¶ , Edward A. Dennis, Joseph L. Witztum, Daniel Steinberg, and Oswald Quehenberger** From ( 50%) both by the reconstituted apoB from OxLDL and by microemulsions prepared from OxLDL lipids and by demonstrating reciprocal inhibition, i.e. apoB from OxLDL inhibited the binding of the OxLDL lipids and vice

  1. Variant surface glycoprotein RNA interference triggers a precytokinesis cell cycle arrest

    E-Print Network [OSTI]

    Schnaufer, Achim

    Rudenko*§ *Peter Medawar Building for Pathogen Research, University of Oxford, South Parks Road, Oxford OX

  2. COPYRIGHT NOTICE: Vladimir G. Berkovich: Integration of One-forms on P-adic Analytic Space

    E-Print Network [OSTI]

    Landweber, Laura

    marked formal schemes 51 4. 1,cl Properties of the Sheaves X /dOX 55 4.1 Analytic curve connectedness of closed analytic spaces 55 4.2 The sheaves OX c , OX 1 , and OX v 57 4.3 Structure of the sheaves 1 /dOX for smooth analytic curves 59 X 4.4 Injectivity of the homomorphism dLog : OX v Z cX X 1,cl /dOX 63 4.5 1

  3. Cdric Fournet , George Danezis Markulf Kohlweiss, Zhengqin Luo

    E-Print Network [OSTI]

    Bernstein, Phil

    ;DemoPreview > ZQL.compile let setup (x, y) = let ox = sample() let oy = sample() let Cx = g^x * h^ox let Cy = g^y * h^oy let sigv = sign sk (concat (eltBytes Cx) (eltBytes Cy)) ((x, ox, Cx), (y, oy, Cy), sigv)) let prover ((x, ox, Cx), (y, oy, Cy), sigv)) = let r = 2*x ­ y let o = 2*ox - oy (Cx

  4. PIECEWISE SMOOTH CHEBFUNS RICARDO PACH ON, RODRIGO PLATTE, AND LLOYD N. TREFETHEN

    E-Print Network [OSTI]

    Lu, Chang-Tien

    PIECEWISE SMOOTH CHEBFUNS RICARDO PACH ´ON, RODRIGO PLATTE, AND LLOYD N. TREFETHEN Abstract://www.comlab.ox.ac.uk/ricardo.pachon/). Oxford Computing Laboratory, Wolfson Bldg., Parks Rd., Oxford OX1 3QD, UK (rodp@comlab.ox.ac.uk, http://www.comlab.ox.ac.uk/rodrigo.platte://www.comlab.ox.ac.uk/nick.trefethen/). 1 #12;2 R. PACH ´ON, R. PLATTE AND L. N. TREFETHEN needed to represent these functions to machine

  5. Theorie des langages Elise Bonzon

    E-Print Network [OSTI]

    Bonzon, Elise

    longueur de w X est l'alphabet x est une lettre de X |w|x est le nombre d'occurences de x dans w. Exemple´enation (produit) Propri´et´es Le produit est associatif w1, w2, w3 X , w1.(w2.w3) = (w1.w2).w3 = w1.w2.w3 est l mot sur l'alphabet X est une s´equence finie et ordonn´ee, ´eventuelle- ment vide, d'´el´ements de l

  6. Developmental Science 12:2 (2009), pp 264271 DOI: 10.1111/j.1467-7687.2008.00758.x 2008 The Authors. Journal compilation 2008 Blackwell Publishing Ltd, 9600 Garsington Road, Oxford OX4 2DQ, UK and

    E-Print Network [OSTI]

    Carpenter, M.alinda

    2009-01-01T23:59:59.000Z

    on the kitchen counter, I could mean almost anything. In terms of referent, I could be indicating the backpack still might mean almost anything from `it's time to do your home- work' to `try searching there for your intention or meaning; see Tomasello, Carpenter & Liszkowski, 2007, for more on these terms). Recent

  7. In Situ XRD Studies of ZnO/GaN Mixtures at High Pressure and High Temperature: Synthesis of Zn-Rich (Ga1-xZnx)(N1-xOx) Photocatalysts

    SciTech Connect (OSTI)

    Chen, H.; Wang, L; Bai, J; Hanson, J; Warren, J; Muckerman, J; Fujita, E; Rodriguez, J

    2010-01-01T23:59:59.000Z

    The high-pressure, high-temperature conditions for the synthesis of Zn-rich (Ga{sub 1-x}Zn{sub x})(N{sub 1-x}O{sub x}) solid solutions from mixtures of ZnO/GaN were explored using synchrotron-based in situ time-resolved X-ray diffraction (XRD). Following a new synthetic path, (Ga{sub 1-x}Zn{sub x})(N{sub 1-x}O{sub x}) solid solutions with a Zn content up to {approx}75% were prepared for the first time. The structures of the (Ga{sub 1-x}Zn{sub x})(N{sub 1-x}O{sub x}) solid solutions were characterized by XRD and X-ray absorption fine structure (XAFS) analyses and were in excellent agreement with the predictions of density functional calculations. These materials adopt a wurtzite crystal structure with metal-N or metal-O bond distances in the range of 1.95-1.98 {angstrom}. Although the (Ga{sub 1-x}Zn{sub x})(N{sub 1-x}O{sub x}) solid solutions seem to be stable over the full range of compositions, no ideal solid solution formation was observed. In all cases, the lattice parameters were larger than those of ideal solid solutions. The variation of the lattice parameter c showed an upward double bowing curve, as was predicted by theoretical calculations. Also, no ideal behavior was observed in the electronic properties of the (Ga{sub 1-x}Zn{sub x})(N{sub 1-x}O{sub x}) solid solutions. X-ray absorption spectra at the Zn and Ga K-edges of the (Ga{sub 1-x}Zn{sub x})(N{sub 1-x}O{sub x}) systems showed significant electronic perturbations with respect to ZnO and GaN. The synthesized (Ga{sub 1-x}Zn{sub x})(N{sub 1-x}O{sub x}) solid solution with a Zn content of 50% displayed the ability to absorb visible light well above 500 nm. This material has a great potential for splitting water under visible light irradiation. The availability of (Ga{sub 1-x}Zn{sub x})(N{sub 1-x}O{sub x}) solid solutions with a high Zn content opens the door to fully explore the application of these materials in photocatalysis.

  8. In Situ XRD Studies of ZnO/GaN Mixtures at High Pressure and High Temperature: Synthesis of Zn-Rich (Ga1-xZnx)(N1-xOx) Photocatalysts

    SciTech Connect (OSTI)

    Rodriguez, J.A.; Chen, H.; Wang, L.; Bai, J.; Hanson, J.C.; Warren, J.B.; Muckerman, J.T.; Fujita, E.

    2010-02-04T23:59:59.000Z

    The high-pressure, high-temperature conditions for the synthesis of Zn-rich (Ga{sub 1-x}Zn{sub x})(N{sub 1-x}O{sub x}) solid solutions from mixtures of ZnO/GaN were explored using synchrotron-based in situ time-resolved X-ray diffraction (XRD). Following a new synthetic path, (Ga{sub 1-x}Zn{sub x})(N{sub 1-x}O{sub x}) solid solutions with a Zn content up to 75% were prepared for the first time. The structures of the (Ga{sub 1-x}Zn{sub x})(N{sub 1-x}O{sub x}) solid solutions were characterized by XRD and X-ray absorption fine structure (XAFS) analyses and were in excellent agreement with the predictions of density functional calculations. These materials adopt a wurtzite crystal structure with metal-N or metal-O bond distances in the range of 1.95-1.98 {angstrom}. Although the (Ga{sub 1-x}Zn{sub x})(N{sub 1-x}O{sub x}) solid solutions seem to be stable over the full range of compositions, no ideal solid solution formation was observed. In all cases, the lattice parameters were larger than those of ideal solid solutions. The variation of the lattice parameter c showed an upward double bowing curve, as was predicted by theoretical calculations. Also, no ideal behavior was observed in the electronic properties of the (Ga{sub 1-x}Zn{sub x})(N{sub 1-x}O{sub x}) solid solutions. X-ray absorption spectra at the Zn and Ga K-edges of the (Ga{sub 1-x}Zn{sub x})(N{sub 1-x}O{sub x}) systems showed significant electronic perturbations with respect to ZnO and GaN. The synthesized (Ga{sub 1-x}Zn{sub x})(N{sub 1-x}O{sub x}) solid solution with a Zn content of 50% displayed the ability to absorb visible light well above 500 nm. This material has a great potential for splitting water under visible light irradiation. The availability of (Ga{sub 1-x}Zn{sub x})(N{sub 1-x}O{sub x}) solid solutions with a high Zn content opens the door to fully explore the application of these materials in photocatalysis.

  9. Investigation of factors influencing feedlot performance and profitability in the 2001-2002 Texas A&M ranch to rail program- south

    E-Print Network [OSTI]

    Harborth, Karl Walter

    2004-09-30T23:59:59.000Z

    for no differences. Among SBIO groups, British-sired steers exhibited greatest values for ADG (1.39 kg/d), MS (457), FT (1.45 cm), CVL ($891), and NI ($25.62). Continental-sired steers exhibited the largest LMA (97.65 cm) and lowest YG (2.51). Brahman-sired steers...

  10. Embedded in internationally recognized research Master and semester projects at the Paul Scherrer Institute

    E-Print Network [OSTI]

    Daraio, Chiara

    fuels Nuclear power as integral part of a sustainable energy supply Fusion technology Non.sns-online.ch/de/index_yg.html) Teaching reactor CROCUS at EPFLTokamak of CRPP-EPFL Your challenges: Supply nuclear fuel for a growing / interested in power engineering, nuclear physics, thermal fluid dynamics, material sciences and energetic

  11. Proceedings of the 2007 IEEE Swarm Intelligence Symposium (SIS 2007) Enhanced Learning in Fuzzy Simulation Models

    E-Print Network [OSTI]

    Parsopoulos, Konstantinos

    their efficiency and accuracy of simulation. Recently, learning algorithms that employ Particle Swarm OptimizationProceedings of the 2007 IEEE Swarm Intelligence Symposium (SIS 2007) Enhanced Learning in Fuzzy Simulation Models Using Memetic Particle Swarm Optimization Y.G. Petalas13, K.E. Parsopoulos1'3, E

  12. Development of Ultra-low Platinum Alloy C th d C t l t f PEM F l C ll

    E-Print Network [OSTI]

    Development of Ultra-low Platinum Alloy C th d C t l t f PEM F l C ll Cathode Catalyst for PEM Objectives · Ultra-low loading Pt catalyysts for oxygen reduction reaction with higgh activityyand ggoodg yg Definition ­ In Developing Low Loading Platinum Catalysts · C l PCatalyst Perfformance ¾ Platinum

  13. University of Tennessee, USA Pacific Northwest National Laboratory,

    E-Print Network [OSTI]

    Wang, Zhong L.

    energy conversion for sustainably powering of portable electronics. Nano Lett, 2012, 12: 6339­6346 10 Zhu Georgia Institute of Technology and Emory University, USA Royal Institute of Technology, Sweden-nanowire hybrid structure for energy scavenging. Nature, 2008, 451: 809­813 4 Xu S, Qin Y, Xu C, Wei YG, Yang RS

  14. Oxford Colleges On-line Reports for Tutorials

    E-Print Network [OSTI]

    Oxford, University of

    OxCORT Oxford Colleges On-line Reports for Tutorials Tutor Role Version 4.5 BSP Training TeamCORT..........................................................................5 Roles in OxCORT..................................................................................5 of Revision Class reports.......................................................8 Report states

  15. THE JACOBIAN OF A RIEMANN SURFACE Fix a compact ...

    E-Print Network [OSTI]

    2013-11-30T23:59:59.000Z

    Given a divisor D = ? npp, recall that we can associate a sheaf OX(D). By ... compatible with restriction, and such that M is locally isomorphic to OX. The.

  16. Volume 11, Number 12 11 December 2010

    E-Print Network [OSTI]

    Biggs, Juliet

    @earth.ox.ac.uk) J. Biggs COMET+, Department of Earth Sciences, University of Oxford, South Parks Road, Oxford OX1 3 December 2010. Ebmeier, S. K., J. Biggs, T. A. Mather, G. Wadge, and F. Amelung (2010), Steady downslope

  17. ALGEBRAIC GROUPS: PART III EYAL Z. GOREN, MCGILL UNIVERSITY

    E-Print Network [OSTI]

    Goren, Eyal Z.

    be the maximal ideal of k[X] comprising the functions vanishing at x. Then, OX,x = k[X]mx , mx = MOX,x, and so OX

  18. Novel Investigations on Kinetics and Polymerization Mechanism of Oxazolines Initiated by Iodine

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    -opening polymerization of 2-methyl-2-oxazoline (MOx) using iodine initiating system was reported. Uncolored the polymerization of 2-oxazoline (Ox), 2-methyl-2-oxazoline (MOx) and 2-ethyl-2-oxazoline (EtOx

  19. School of Mathematical and Physical Sciences

    E-Print Network [OSTI]

    Langdon, Stephen

    and J. P. GILCHRIST (Schlumberger Oilfield UK Plc, Wyndyke Furlong, Abingdon OX14 1UJ, UK) Summary We

  20. A High-Q Low-Voltage HARPSS Tunable Capacitor Pejman Monajemi and Farrokh Ayazi

    E-Print Network [OSTI]

    Ayazi, Farrokh

    . In the HARPSS process, the lateral gap is defined by the thickness of a sacrificial oxide layer, dOx, and can ) cos ( 1 { 2 2 2 0 2 (1) Where K is the mechanical spring constant of the supports, dOx is the sacrificial oxide thickness and is the slant angle (65°). If dOx=1µm, then dCavitydOx/cos, from where

  1. Turbulence & Phonology

    E-Print Network [OSTI]

    Ohala, John J; Solé, Maria-Josep

    2008-01-01T23:59:59.000Z

    palatal fricative) a. buey [bwej] ‘ox’ vs bueyes ['bwe?es], ['bwe?es] ‘oxen’ UC Berkeley Phonology Lab Annual

  2. INTEGRATION OF ONE-FORMS ON P-ADIC ANALYTIC SPACES Vladimir G. BERKOVICH

    E-Print Network [OSTI]

    of the sheaves 1,cl X /dOX . . . . . . . . . . . . . . . . . . . . 56 4.1. Analytic curve connectedness of closed.4. Injectivity of the homomorphism dLog : Ov X Z cX 1 X/dOX . . . . . . . 65 4.5. A subsheaf X 1,cl X /dOX

  3. Catalytic Properties of Supported MoO3 Catalysts for Oxidative Dehydrogenation of Propane

    E-Print Network [OSTI]

    Iglesia, Enrique

    Catalytic Properties of Supported MoO3 Catalysts for Oxidative Dehydrogenation of Propane Kaidong The effects of MoOx structure on propane oxidative dehydrogenation (ODH) rates and selectivity were examined with those obtained on MoOx/ZrO2. On MoOx/Al2O3 catalysts, propane turnover rate increased with increasing Mo

  4. Ris Energy Report 6 Energy efficiency policy 1 4 Energy efficiency policy

    E-Print Network [OSTI]

    Risø Energy Report 6 Energy efficiency policy 1 4 Energy efficiency policy JENs-PETER LYNOV, RIsø DTU; sVEND sVENDsEN, HENRIk M. TOMMERUP, bYg DTU; JøRN bORUP JENsEN, DANIsH ENERgY AssOCIATION 4.1 Introduction Figure 6 shows how energy efficiency improvements have reduced EU energy intensity during the past

  5. Comparison of sampling techniques for Heliothis species in cotton

    E-Print Network [OSTI]

    Walters, Michelle Lynn

    1986-01-01T23:59:59.000Z

    December 19g& Najor Subject: Entomology COMPARISON OF SAMPLING TECHNIQUES FOR HELIOTHIS SPECIES IN COTTON A Thesis by MICHELLE LYNN WALTERS Approved as to style and content by: J. K. Walker, Jr. (Chairman of Committee) J. K. Olson (Member) A. E.... Percival (Member) 2 & F/yg. (Member) F, G. Maxwell (Head of Department) December 1986 ABSTRACT Comparison of Sampling Techniques for Heliothis Species in Cotton. (December 1986) Nichelle Lynn Walters, B. S. , Arizona State University; Chairman...

  6. Streptavidin-peptide interaction as a model system for molecular recognition

    E-Print Network [OSTI]

    Lam, Kit S.

    this technology, we have identified several peptides with HPQ and HPM motifs that interact specifically, similar to HPQ and HPM, many of these ligands interact with streptavidin but not with avidin. IO05 #12;KXxXx xxxxx HPQ WkWpH RWYpH wyqea (3) wfrya HPM YgWpH DWFpH wyhea wymel QtWpH wydya LqWpH YvlfP wyefa AfWpH Yp

  7. xsxsxsxsxsxsxsxsxsxsxsxsxsxsxsxsxsx Michigan State University ExtensionBulletin E-657Major RevisionNov. 1993

    E-Print Network [OSTI]

    xsxsxsxsxsxsxsxsxsxsxsxsxsxsxsxsxsx x Mx Ix Cx Hx Ix Gx Ax Nx x Vx Ex Nx Ix Sx Ox Nx Michigan StateBUTCHERxPREPARE/COOK/PRESERVE #12;xsxsxsxsxsxsxsxsxsxsxsxsxsxsxsxsxsx x Mx Ix Cx Hx Ix Gx Ax N x Vx Ex Nx Ix Sx Ox Nxx Mx Ix Cx Hx bulletin "You and Your Wild Game." #12;x Mx Ix Cx Hx Ix Gx Ax N x Vx Ex Nx Ix Sx Ox Nxx Mx Ix Cx Hx Ix Gx

  8. COURBES LISSES, CYCLE MAXIMAL ET POINTS INFINIMENT VOISINS DES SINGULARITES DE SURFACES

    E-Print Network [OSTI]

    Gonzalez-Sprinberg, Gerard

    S ; on appelle cycle maximal le cycle ZX = miEi d´efini par la partie divisorielle de mOX, o`u m est l seulement si le cycle maximal ZX = miEi de mOX poss`ede une composante r´eduite, i.e. il existe i tel que mi = 1. S'il en est ainsi, mOX est localement principal au voisinage du point exceptionnel P de la

  9. Changes in surface water regime and resources in

    E-Print Network [OSTI]

    distribution in Mongolia, l/s sq.km*100 Converted from 1: 1000000 map to 0.5ox0.5o grid points Results (Continuation) Mean evapotranspiration, mm/year Converted from 1: 9000000 map to 0.5ox0.5o grid #12;3 Evaporation from open water surface, mm/year Converted from 1: 9000000 map to 0.5ox0.5o grid cells Ratio

  10. The Enamovirus P0 protein is a silencing suppressor which inhibits local and systemic RNA silencing through AGO1 degradation

    SciTech Connect (OSTI)

    Fusaro, Adriana F. [University of Sydney, NSW 2006 (Australia) [University of Sydney, NSW 2006 (Australia); CSIRO Plant Industry, Canberra, P.O. Box 1600, ACT 2601 (Australia); Correa, Regis L. [CSIRO Plant Industry, Canberra, P.O. Box 1600, ACT 2601 (Australia) [CSIRO Plant Industry, Canberra, P.O. Box 1600, ACT 2601 (Australia); Depto. de Virologia, IMPPG, UFRJ, 21941-902 (Brazil); Nakasugi, Kenlee; Jackson, Craig [University of Sydney, NSW 2006 (Australia)] [University of Sydney, NSW 2006 (Australia); Kawchuk, Lawrence [Research Centre, Agriculture and Agri-Food Canada, Lethbridge, AB T1J4B1 (Canada)] [Research Centre, Agriculture and Agri-Food Canada, Lethbridge, AB T1J4B1 (Canada); Vaslin, Maite F.S. [Depto. de Virologia, IMPPG, UFRJ, 21941-902 (Brazil)] [Depto. de Virologia, IMPPG, UFRJ, 21941-902 (Brazil); Waterhouse, Peter M., E-mail: peter.waterhouse@sydney.edu.au [University of Sydney, NSW 2006 (Australia); CSIRO Plant Industry, Canberra, P.O. Box 1600, ACT 2601 (Australia)

    2012-05-10T23:59:59.000Z

    The P0 protein of poleroviruses and P1 protein of sobemoviruses suppress the plant's RNA silencing machinery. Here we identified a silencing suppressor protein (SSP), P0{sup PE}, in the Enamovirus Pea enation mosaic virus-1 (PEMV-1) and showed that it and the P0s of poleroviruses Potato leaf roll virus and Cereal yellow dwarf virus have strong local and systemic SSP activity, while the P1 of Sobemovirus Southern bean mosaic virus supresses systemic silencing. The nuclear localized P0{sup PE} has no discernable sequence conservation with known SSPs, but proved to be a strong suppressor of local silencing and a moderate suppressor of systemic silencing. Like the P0s from poleroviruses, P0{sup PE} destabilizes AGO1 and this action is mediated by an F-box-like domain. Therefore, despite the lack of any sequence similarity, the poleroviral and enamoviral SSPs have a conserved mode of action upon the RNA silencing machinery.

  11. 2014 Annual Merit Review, Vehicle Technologies Office - Cross...

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

    State University. Synthesis and Characterization of Polymer-Coated Layered SiOx-Graphene Nanocomposite Anodes (Energy Storage) 3-73 Doug DeVoto; National Renewable Energy...

  12. application cryogenic monitoring: Topics by E-print Network

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

    ... Only one 10-digit reference number should be allotted to any one applicant and only one M1 monitoring@admin.ox.ac.uk...

  13. OXCARREO x f o r d C e n t r e f o r t h e A n a l y s i s o f R e s o u r c e R i c h E c o n o m i e s

    E-Print Network [OSTI]

    Oxford, University of

    Vermeulen 15.45-16.00 Tea 16.00-16.45 "Crime and Fracking" Alex James (OxCarre) Discussant: Roberto Bonfatti

  14. additional susceptibility loci: Topics by E-print Network

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

    loci for endometriosis with near, Gary Dawson, Vicki Smith, Alisoun Carey, and Simon T.Bennett; Queensland Endometriosis Research@well.ox.ac.uk BACKGROUND: Endometriosis is a...

  15. The absolute de Rham-Witt complex Lars Hesselholt

    E-Print Network [OSTI]

    Hesselholt, Lars

    generated by the subsheaf Z×(1+mOX) , and where, for j > 0, Fil2j U T(Mgp X ) is the graded ideal generated

  16. 466, 347 (2010) Intra-unit-cell Electronic C4 Symmetry Breaking

    E-Print Network [OSTI]

    Davis, James C.

    2010-01-01T23:59:59.000Z

    )]( ~ )( ~ )( ~ )( ~ [ 2 1 ][ QQ QQ QQ OyOxCux MMMM +-=)( ~ Q ~M(Qy ) = MCu + MOx - MOy Detecting IUC C4 symmetry breaking

  17. The absolute de Rham-Witt complex Lars Hesselholt

    E-Print Network [OSTI]

    Hesselholt, Lars

    X), where Fil1UT (MgpX) is the graded ideal generat* *ed by the subsheaf Zx(1+mOX )*, and where, for j > 0

  18. The absolute de RhamWitt complex Lars Hesselholt

    E-Print Network [OSTI]

    Hesselholt, Lars

    ) is the graded ideal generated by the subsheaf Z×(1+mOX ) # , and where, for j > 0, Fil 2j U T (M gp X

  19. Formation Mechanism for a Hybrid Supramolecular Network Involving Cooperative Interactions

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Formation Mechanism for a Hybrid Supramolecular Network Involving Cooperative Interactions Manuela of Materials, University of Oxford, Parks Road, Oxford OX1 3PH, United Kingdom; CEA, IRAMIS, SPCSI, Hybrid University, 24-29 St Giles, Oxford, OX1 3LB, United Kingdom 4 Department of Materials, University of Oxford

  20. brainstorming in Bonn January 21, 2013

    E-Print Network [OSTI]

    Dutz, Hartmut

    sodium salt) used for propandiolD8 Ox063Me (AH 111 501 sodium salt) used for pyruvic acid Deuteron., NIM A 631 (2011) 1-5 Finland D36 (AH110355 deutero acid form) used for butanolD10 Ox063 (AH100136

  1. Proc. Natl. Acad. Sci. USA Vol. 96, pp. 63476352, May 1999

    E-Print Network [OSTI]

    Dennis, Edward A.

    , JOSEPH L. WITZTUM, AND DANIEL STEINBERG§ Departments of Medicine 0682 and Chemistry and Biochemistry, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093-0682 Contributed by Daniel (apoB) isolated from OxLDL, suggesting that macrophage recognition of OxLDL is primarily depen- dent

  2. UK Energy Research Centre Demand Reduction Theme, University of Oxford

    E-Print Network [OSTI]

    UK Energy Research Centre Demand Reduction Theme, University of Oxford The Experience of Carbon Energy Research Centre ­ Demand Reduction Theme Environmental Change Institute Oxford University Centre for the Environment South Parks Road Oxford OX1 3QY www.eci.ox.ac.uk www.ukerc.ac.uk #12;UK Energy Research Centre 2 1

  3. AN ANISOTROPIC DIFFUSION APPROACH FOR EARLY DETECTION OF BREAST CANCER

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    AN ANISOTROPIC DIFFUSION APPROACH FOR EARLY DETECTION OF BREAST CANCER Marius George LINGURARU, Oxford OX2 7BZ, United Kingdom mglin@robots.ox.ac.uk Abstract: The prevalence of breast cancer must provide effective clinical methods to detect cancer and improve life expectancy. Considerable

  4. 15N2 formation and fast oxygen isotope exchange during pulsed...

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

    N2 formation and fast oxygen isotope exchange during pulsed 15N18O exposure of MnOxCeO2. 15N2 formation and fast oxygen isotope exchange during pulsed 15N18O exposure of MnOx...

  5. Geophys. J. Int. (2009) 176, 353367 doi: 10.1111/j.1365-246X.2008.03932.x GJIGeodesy,potentialfieldandappliedgeophysics

    E-Print Network [OSTI]

    Biggs, Juliet

    ,potentialfieldandappliedgeophysics The postseismic response to the 2002 M 7.9 Denali Fault earthquake: constraints from InSAR 2003­2005 Juliet Biggs, OX1 3PR, UK. E-mail: Juliet.Biggs@earth.ox.ac.uk 2University of California, Berkeley, USA 3

  6. UNIVERSITY OF UTAH ELECTRICAL AND COMPUTER ENGINEERING DEPARTMENT

    E-Print Network [OSTI]

    Harrison, Reid R.

    expressions for differential pair current: ( ) [ ]( )LWCI VV I L W C I I oxBIAS ININ BIASox BIAS ' 2 ' 1 2 1 22 µ µ - += ( ) [ ]( )LWCI VV I L W C I I oxBIAS ININ BIASox BIAS ' 2 ' 2 2 1 22 µ µ

  7. Development of a mirror-based endoscope for divertor spectroscopy on JET with the new ITER-like wall (invited)

    E-Print Network [OSTI]

    , Abingdon, OX14 3DB, United Kingdom 1 Institute of Energy and Climate Research ­ Plasma Physics/CCFE Fusion Association, Culham Science Centre, Abingdon, OX14 3DB, United Kingdom 3 Kayser-Threde GmbH, D CO2 plasma by laser driven plasma wind tunnel J. Appl. Phys. 112, 033301 (2012) Additional

  8. Received 18 July 2001 Accepted 11 January 2002

    E-Print Network [OSTI]

    Meron, Ehud

    of Solar Energy and Environmental Physics, Blaustein Institute for Desert Research, Ben Gurion University 38, D-01187 Dresden, Germany 2 Mathematical Institute, University of Oxford, Oxford OX1 3LB, UK 3, the transformation to a dormant state occurs as a result of * Author for correspondence (hardenberg@maths.ox.ac.uk

  9. Pancake bouncing on superhydrophobic surfaces , Lisa Moevius2

    E-Print Network [OSTI]

    Loss, Daniel

    Pancake bouncing on superhydrophobic surfaces Yahua Liu1 , Lisa Moevius2 , Xinpeng Xu3 , Tiezheng.ox.ac.uk) or Z.W (zuanwang@cityu.edu.hk). 1 Pancake bouncing on superhydrophobic surfaces Yahua Liu1 , Lisa.Y. (j.yeomans1@physics.ox.ac.uk) or Z.W (zuanwang@cityu.edu.hk). Pancake bouncing on superhydrophobic

  10. Variability in desert bighorn and Rambouillet sheep using restriction fragment length polymorphisms 

    E-Print Network [OSTI]

    Lyles, Ingrid Doodeheefver

    1989-01-01T23:59:59.000Z

    , was resuspended in Tris-EDTA, and the concentration of DNA in yg/ml was determined (Skow et al. 1988). 18 Table 1. Species identification. No. 1 2 3 4 6 7 DBHS NV/TX DBHS NV/TX DBHS NV/TX DBHS NV/TX DBHS NV/TX DBHS NV/TX Heparinized Blood.... Rambo. Calif. Rambo. Calif. Rambo. DNA extracted form DNA extracted form DNA extracted form DNA extracted form DNA extracted form UCB UCB UCB UCB UCB DBHS NV/TX: Desert Bighorn Sheep Nevada/Texas cross DBHS AZ/AZ: Desert Bighorn Sheep...

  11. Attributes considered important by Central East Texas high school seniors when choosing a college

    E-Print Network [OSTI]

    Uribe, Ernesto

    1962-01-01T23:59:59.000Z

    &HDO ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ 1 ~ ~ ~ ~ ~ ~ ~ ~ RRLATXfRSHIP BRTWRRf THR OCCUPATION OF THR HAIN WASRR RARNHR IN THR STUDRfT'8 HfNN AND HXS ATTITUDR TOWARD A OOLLRQR HAVZNO 1 HIOH AOAHNfXC RATINO ~ ~ r ~ ~ RELATIfgfSHXP BRTfNRf THR ERRSTXOR RATZNO OF Tlm OCCUPATION OF THR... &- Ralph F. !3erdies, "Ry' Son't They Go To Collegel, " CHQT% II Tggcm& icdh yg'dgRIINK pea the review of literatsre, it was evident that there has boca scan resesroh oosoernisg the question as to &ho goes to oolieg?, bcLt little wns hncna regardiag...

  12. Enhancement of two-phase flow images obtained using dynamic neutron radiography

    E-Print Network [OSTI]

    Johns, Russell Craig

    1995-01-01T23:59:59.000Z

    is set to make the system operate at 30 frames per second and hence lasts approximately 52. 3 p. s. From this we can derive an equation to give the time elapsed between any two points on any frame or pair of frames: Tv~ =[2(Fi Fi)+(fi fi)]Ty+~z(yz yg... AND ANALYSIS . Visualization Aids . . . . . . . . . . . . . . . . Contrast Enhancement. P seudocoloring . Filtering Methods. Median Filter Weighted Mean Filter . I . . . . 3 7. . 8 . 10 . . . . I 0 . 11 13 13 . 14 15 . 15 . 16 . 18 19 . 20...

  13. On the theory of water level variations in lakes and seas induced by atmospheric disturbances

    E-Print Network [OSTI]

    Sparger, Carter Reece

    1953-01-01T23:59:59.000Z

    , Boundary Conditions: u. (o. q, t) = u- C~, gt) = ~ (W, - K, t) = 0 au. 8u [ Q ? (y-g t) = -+ ? (w, o, t) = ? ? ~ Wpl~ %+ R eQ? x~v Initial Conditions; u. (e?q, o) = q (W, o) = 0 Solution: The expressions %q = co+ 'La ~ exp Q~ J ?= ?in Iy z(g ??p... ~ = constant) ~Q ~ ~ b~ at o~ a+ + \\ 0 a at C. F || I. 11* tl*o ~Co 0o1 Ilsed: In general, the response of a given body of homo- geneous water to atmospheric pressure grad1ents and winds depends on the eddy viscos1ty of the weter, the Coriolis force...

  14. The effects of two situational variables on the self-confidence of males and females in achievement settings

    E-Print Network [OSTI]

    Smith, Susan Marilyn Hartman

    1977-01-01T23:59:59.000Z

    - ~uivocal feedback on individuals' abilities, women do not have lower self-confidence than men. Feather and. Simon (1971) found no sex differences in conf1dence of passing a subsequent anagruns test when the subjects had been given feedback in the form oi..., 94 ) I ? 5. 28, yg . 01. A Scheffe's comparison of means revealed that subjects who were given clear feedback were significantly more conf1dent in same-sex competition (X= 4. 26) and less confident in oppos1te-sex competition (X= 2. 71), g g . 05...

  15. The effects of two situational variables on the self-confidence of males and females in achievement settings 

    E-Print Network [OSTI]

    Smith, Susan Marilyn Hartman

    1977-01-01T23:59:59.000Z

    - ~uivocal feedback on individuals' abilities, women do not have lower self-confidence than men. Feather and. Simon (1971) found no sex differences in conf1dence of passing a subsequent anagruns test when the subjects had been given feedback in the form oi..., 94 ) I ? 5. 28, yg . 01. A Scheffe's comparison of means revealed that subjects who were given clear feedback were significantly more conf1dent in same-sex competition (X= 4. 26) and less confident in oppos1te-sex competition (X= 2. 71), g g . 05...

  16. A correlation for the coefficient of isothermal compressibility of black oil at pressures below the bubble point

    E-Print Network [OSTI]

    Villena Lanzi, Alejandro J

    1985-01-01T23:59:59.000Z

    differential liberation and separator test data of black oil samples from 260 worldwide well locations. The data base consisted of values of isothermal compressibility, stock-tank oil gravity, surface gas gravity, total solution gas-oil ratio, and reservoir... Bubble Point Pressure, pb Surface Gas Specific Gravity, yg 2, 500 31. 0 x 10 to 6600 x 10 psi 1. 5 to 1947 scf/STB 6. 0 to 52. 0 'API 78. 0 to 330. 0 'F 500. 0 to 5300. 0 psig 763. 0 to 5300. 0 psig 0. 58 to 1. 2 Bod ~ relative oil volume...

  17. A comparison of three deer survey techniques 

    E-Print Network [OSTI]

    Rakestraw, Danny Lee

    1995-01-01T23:59:59.000Z

    from rolling hills to steep washes. Upland Vgtt llgdo t day)i yg't (~P glg d 1* ), A't t tl (A~lo ~1' 'd ), d forbs. Shoreline areas, which were occasionally flooded, Hew Mexi, co AMIS - Anu. stad Nat, Reer. Area CACA - Carlsbad Caverns Nat. Park... suitable for normal vehicular travel were Walnut Canyon Road, Scenic Loop Road, and along the flats in the southern portion of the park. Several species of large mammals occurred on the park including mountain lion (/elis concolor), elk (~Cerv s ~lh...

  18. A clinical and serological study of experimental Babesia bigemina infections in calves

    E-Print Network [OSTI]

    Pallota-Lapenta, Felipe

    1977-01-01T23:59:59.000Z

    levels of immunoglobulins yM and yG were important in assessing the clinical course of B. bigemina infection. ACKNOWLEDGMENTS The author expresses his appreciation to the members of his grad- uate committee, Drs. T. J. Galvin, R. R. Bell and C. L... and with the preparation and reviewing of the manuscript. Acknowledgment is made to the personnel of the Institute of Tropical Veterinary Medicine, Texas AEM University, especially to Dr. K. L. Kuttler whose friendship and collaboration contributed to the author...

  19. A Manual of Methods for Baculovirus Vectors and Insect Cell Culture Procedures.

    E-Print Network [OSTI]

    Summers, Max D.; Smith, Gale E.

    1987-01-01T23:59:59.000Z

    isolation .................. 33 4.5.1 Purification of extracellular virus DNA. . . . 33 4.5.2 Purification of total DNA from infected cells 35 4.6 Radiolabeling recombinant proteins. . . . . . . . . . 36 4 5 Preparation of insect cell culture media 5....1 Preparation of TNM-FH medium . 5.1.1 lOX Soluble amino acids .. 5.1.2 100X Insoluble amino acids 5.1.3 lOX Carbohydrates .... . 5.1.4 1000X Vitamins ..... . 5.1.5 Preparing 4 liters of IX medium 5.2 lOX Stocks: Preparation checklist. 5.3 Media...

  20. PWR core design, neutronics evaluation and fuel cycle analysis for thorium-uranium breeding recycle

    SciTech Connect (OSTI)

    Bi, G.; Liu, C.; Si, S. [Shanghai Nuclear Engineering Research and Design Inst., No. 29, Hongcao Road, Shanghai, 200233 (China)

    2012-07-01T23:59:59.000Z

    This paper was focused on core design, neutronics evaluation and fuel cycle analysis for Thorium-Uranium Breeding Recycle in current PWRs, without any major change to the fuel lattice and the core internals, but substituting the UOX pellet with Thorium-based pellet. The fuel cycle analysis indicates that Thorium-Uranium Breeding Recycle is technically feasible in current PWRs. A 4-loop, 193-assembly PWR core utilizing 17 x 17 fuel assemblies (FAs) was taken as the model core. Two mixed cores were investigated respectively loaded with mixed reactor grade Plutonium-Thorium (PuThOX) FAs and mixed reactor grade {sup 233}U-Thorium (U{sub 3}ThOX) FAs on the basis of reference full Uranium oxide (UOX) equilibrium-cycle core. The UOX/PuThOX mixed core consists of 121 UOX FAs and 72 PuThOX FAs. The reactor grade {sup 233}U extracted from burnt PuThOX fuel was used to fabrication of U{sub 3}ThOX for starting Thorium-. Uranium breeding recycle. In UOX/U{sub 3}ThOX mixed core, the well designed U{sub 3}ThOX FAs with 1.94 w/o fissile uranium (mainly {sup 233}U) were located on the periphery of core as a blanket region. U{sub 3}ThOX FAs remained in-core for 6 cycles with the discharged burnup achieving 28 GWD/tHM. Compared with initially loading, the fissile material inventory in U{sub 3}ThOX fuel has increased by 7% via 1-year cooling after discharge. 157 UOX fuel assemblies were located in the inner of UOX/U{sub 3}ThOX mixed core refueling with 64 FAs at each cycle. The designed UOX/PuThOX and UOX/U{sub 3}ThOX mixed core satisfied related nuclear design criteria. The full core performance analyses have shown that mixed core with PuThOX loading has similar impacts as MOX on several neutronic characteristic parameters, such as reduced differential boron worth, higher critical boron concentration, more negative moderator temperature coefficient, reduced control rod worth, reduced shutdown margin, etc.; while mixed core with U{sub 3}ThOX loading on the periphery of core has no visible impacts on neutronic characteristics compared with reference full UOX core. The fuel cycle analysis has shown that {sup 233}U mono-recycling with U{sub 3}ThOX fuel could save 13% of natural uranium resource compared with UOX once through fuel cycle, slightly more than that of Plutonium single-recycling with MOX fuel. If {sup 233}U multi-recycling with U{sub 3}ThOX fuel is implemented, more natural uranium resource would be saved. (authors)

  1. Contaminant and genotoxicity profiles of sediments and zebra mussels as indicators of chemical contamination in Hamilton Harbour

    SciTech Connect (OSTI)

    McCarry, B.E.; Allan, L.M.; Marvin, C.H.; Villella, J.; Bryant, D.W. [McMaster Univ., Hamilton, Ontario (Canada)

    1995-12-31T23:59:59.000Z

    Samples of bottom sediments, suspended sediments and Zebra mussels were collected from Hamilton Harbour, an embayment of western Lake Ontario. In addition, sediment samples were collected from creeks which flow into the Harbour. These sediment samples were extracted with dichloromethane and the organic extract was cleaned up prior to analysis for PAH and thia-arenes by GC-MS. These extracts were also subjected to genotoxicity bioassays (Ames assays) in two strains of Salmonella typhimurium (a TA98-like strain, YG1024-S9 and a TA100-like strain, YG1025 + S9). The sediment and Zebra mussels samples collected near sites of heavy coal tar contamination showed PAH, thia-arene and genotoxicity profiles that are very similar to the corresponding profiles for coal tar. These observations are consistent with the resuspension and distribution of coal tar-contaminated bottom sediments in the water column. The sediment samples collected in a major creek entering the Harbor and the sediment and Zebra mussels samples collected in Windemere Arm near the mouth of this creek showed very different chemical and genotoxicity profiles. Thus, the chemical and genotoxicity burdens on Hamilton Harbour posed by the resuspension of coal tar-contaminated sediments and the inputs from urban activity into a major creek and the Harbor can be differentiated.

  2. THE UNSTEADY FLOW OF A WEAKLY COMPRESSIBLE FLUID IN A THIN POROUS LAYER

    E-Print Network [OSTI]

    Langdon, Stephen

    , Reading RG6 6AX, UK §Email: s.langdon@reading.ac.uk ¶Schlumberger Oilfield UK Plc, Wyndyke Furlong, Abingdon, OX14 1UJ, UK Email: gbusswell@abingdon.oilfield.slb.com Email: pgilchrist@abingdon.oilfield

  3. Zinc Oxide Nanowire As an Electron-Extraction Layer for Broadband Polymer Photodetectors with an Inverted Device Structure

    E-Print Network [OSTI]

    Wang, Deli

    to be unstable with indium, contaminating the polymer and thus degrading the performance of devices. MeanwhileOx) and cesium carbonate (Cs2CO3) are developed onto the ITO electrode to break the symmetry. The elimination

  4. 2012 Annual Merit Review Results Report - Energy Storage Technologies

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

    2.50 3.00 2.81 Synthesis and Characterization of Polymer- Coated Layered SiOx-Graphene Nanocomposite Anodes Donghai Wang (Pennsylvania State University) 2-135 3.50 2.50...

  5. Hafnium-doped tantalum oxide high-k gate dielectric films for future CMOS technology 

    E-Print Network [OSTI]

    Lu, Jiang

    2007-04-25T23:59:59.000Z

    A novel high-k gate dielectric material, i.e., hafnium-doped tantalum oxide (Hf-doped TaOx), has been studied for the application of the future generation metal-oxidesemiconductor field effect transistor (MOSFET). The ...

  6. TESTS OF HATCHERY FOODS FOR BLUEBACK SALMON 1951

    E-Print Network [OSTI]

    >eooeoooooooooeooeoo XX 1"63, U*^ V XSCGrS^JTLG&X L/OnX'rOX ·oooaaeoooeop^^ooooooooooooooooooeoeeoe XX Air-Lift Dried at the Leavenworth Laboratory to develop adequate diets for the artificial propagation of salmon

  7. Numerical determination of the basin of attraction for exponentially asymptotically autonomous dynamical

    E-Print Network [OSTI]

    Dettweiler, Michael

    , UK, e-mail: wend- land@maths.ox.ac.uk 1 #12;In the case of equilibria in autonomous differential for the construction of Lyapunov functions in autonomous systems include Zubov's equation [7] and linear programming [8

  8. I

    Office of Legacy Management (LM)

    I & -Ty( p-3, ' W. r( * t P.O. B L a. I 24, Clin CHEMICALS GROUP OX 652 l PASADENA. TEXAS 77601 l (713) 472.3641 LJ April 12, 1979 Mr. William E. Mott Acting Director...

  9. 2014 Annual Merit Review, Vehicle Technologies Office - 03 Energy...

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

    3.50 3.17 3.33 Synthesis and Characterization of Polymer- Coated Layered SiOx-Graphene Nanocomposite Anodes Donghai Wang (Pennsylvania State University) 2-116 3.67 3.17...

  10. I'hofochonistry and I'hotohiologv, Vol. 58, No. 3, pp. 438445, 1993 Printed in the LJnited States. All nghls reserved

    E-Print Network [OSTI]

    Govindjee

    produced by: ( 1 ) pretreatment with sodium dithionite and mcthyl viologen followed by laser illumination is dependent on the redox state of the reaction center. When the electron acceptor QA of PSIl is in the ox

  11. Blocking Variant Surface Glycoprotein Synthesis in Trypanosoma brucei Triggers a General Arrest in

    E-Print Network [OSTI]

    Schnaufer, Achim

    , Susanne Kramer4 , Mark Carrington4 , Shulamit Michaeli5 , Keith Gull3 , Gloria Rudenko2 * 1 Centre-mail: gloria.rudenko@medawar.ox.ac.uk . These authors contributed equally to this work. Introduction African

  12. The architecture of variant surface glycoprotein gene expression sites in Trypanosoma brucei

    E-Print Network [OSTI]

    Cross, George

    , Tyiesha Zanders e , Magali Berberof f , Piet Borst f , Gloria Rudenko b, * a The Wellcome Trust Sanger-1865- 281-894 E-mail address: gloria.rudenko@medawar.ox.ac.uk (G. Rudenko). 1 Present address: Cold Spring

  13. Summary of Swedish Experiences on CNG and "Clean" Diesel Buses

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

    diesel (i.e. Euro II) with ox cat CNG buses in 1992 (Gothenburg); later also biogas Retrofit particulate filters (i.e. CRT TM ) in mid 1990's Environmental zones in...

  14. Consistency of the Geometric Brownian Motion Model of Stock Prices with Asymmetric Information.

    E-Print Network [OSTI]

    Carmona, Rene

    Engineering Quadrangle Princeton, NJ 08544-5263 Albina Danilova OCIAM Mathematical Institute University address correspondence to danilova@maths.ox.ac.uk. 1 #12;tic calculus and probability theory

  15. Fast curve fitting using neural networks C. M. Bishop and C. M. Roach

    E-Print Network [OSTI]

    Fast curve fitting using neural networks C. M. Bishop and C. M. Roach Citation: Rev. Sci. Instrum Kingdom C. M. Roach AEA Technology,Culham Laboratory, (Euratom/UkAEA Fusion Association)Oxon OX14 3DB

  16. New Fire Code adopted July 1, 2008 Fire Code requires all non-

    E-Print Network [OSTI]

    Jia, Songtao

    with water Caution about use of water in spill control OX Material is oxidizer NFPA Diamond Health/combust 75 SCF flammable gas Valid for 12 months Issued after inspection No Violations If violations

  17. al ruido industrial: Topics by E-print Network

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

    Summary: .5% absolute 2 compared to conventional aluminum back surface field (Al-BSF) solar cells. The main effect SINGULAR In the recent years, aluminum oxide (AlOx) layers...

  18. Probing warm dense lithium by inelastic X-ray scattering

    E-Print Network [OSTI]

    Loss, Daniel

    of warm dense matter states has practical applications for controlled thermonuclear fusion, where, Rutherford Appleton Laboratory, Chilton, Didcot, OX11 0QX, UK 4 Centre for Fusion, Space and Astrophysics

  19. American Journal of Botany 98(5): 872895. 2011. American Journal of Botany 98(5): 872895, 2011; http://www.amjbot.org/ 2011 Botanical Society of America

    E-Print Network [OSTI]

    Sytsma, Kenneth J.

    (e-mail: givnish@wisc.edu) doi:10.3732/ajb.1000059 PHYLOGENY, ADAPTIVE RADIATION, AND HISTORICAL of Oxford, Oxford OX1 3RB, UK; 11Smithsonian Tropical Research Institute, Balboa, Ancon, Republic of Panama

  20. Drift Chamber R&D K.T. McDonald

    E-Print Network [OSTI]

    McDonald, Kirk

    or electroless nickel? 2. Deflection of 1/32 segments of the endplates. 3. Prototype III, a 1/16 segment ox- ide. Inexpensive. The electroless nickel process can put a layer of nickel up to 0.0001 thick

  1. Atmos. Chem. Phys., 14, 82558267, 2014 www.atmos-chem-phys.net/14/8255/2014/

    E-Print Network [OSTI]

    Pierce, Jeffrey

    of nitrogen ox- ides (NOx), sulfur dioxide (SO2), carbon dioxide (CO2) and Published by Copernicus. Particles in the atmosphere are of concern due to their toxic properties and effects on climate. In coastal

  2. america central america: Topics by E-print Network

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

    Websites Summary: volcanoes: insights from Central AmericaQ1 S. K. EBMEIER1*, J. BIGGS2,3, T. A. MATHER1 & F. AMELUNG3 1 COMET.ebmeier@earth.ox.ac.uk) Abstract: Measuring...

  3. Laser Inertial Fusion-based Energy: Neutronic Design Aspects of a Hybrid Fusion-Fission Nuclear Energy System

    E-Print Network [OSTI]

    Kramer, Kevin James

    2010-01-01T23:59:59.000Z

    Code MFE Magnetic Fusion Energy MOX Mixed Oxide NES Nuclearreprocessing mixed oxide (MOX) fuels, as will be discussedbegun using Mixed ox- ide or MOX fuel as a means of both

  4. doi:10.1152/ajpregu.00130.2005 289:670-679, 2005. First published May 12, 2005;Am J Physiol Regul Integr Comp Physiol

    E-Print Network [OSTI]

    Fahlman, Andreas

    where body heat loss is minimal. The data emphasize the importance in considering nutritional status.2005.--We measured ox- ygen consumption rate (V O2) and body temperatures in 10 king penguins in air of the oxygen consumption rate

  5. Mixed N-Heterocyclic Carbene-Bis(oxazolinyl)borato Rhodium and Iridium Complexes in Photochemical and Thermal Oxidative Addition Reactions

    SciTech Connect (OSTI)

    Xu, Songchen [Ames Laboratory; Manna, Kuntal [Ames Laboratory; Ellern, Arkady [Ames Laboratory; Sadow, Aaron D [Ames Laboratory

    2014-12-08T23:59:59.000Z

    In order to facilitate oxidative addition chemistry of fac-coordinated rhodium(I) and iridium(I) compounds, carbene–bis(oxazolinyl)phenylborate proligands have been synthesized and reacted with organometallic precursors. Two proligands, PhB(OxMe2)2(ImtBuH) (H[1]; OxMe2 = 4,4-dimethyl-2-oxazoline; ImtBuH = 1-tert-butylimidazole) and PhB(OxMe2)2(ImMesH) (H[2]; ImMesH = 1-mesitylimidazole), are deprotonated with potassium benzyl to generate K[1] and K[2], and these potassium compounds serve as reagents for the synthesis of a series of rhodium and iridium complexes. Cyclooctadiene and dicarbonyl compounds {PhB(OxMe2)2ImtBu}Rh(?4-C8H12) (3), {PhB(OxMe2)2ImMes}Rh(?4-C8H12) (4), {PhB(OxMe2)2ImMes}Rh(CO)2 (5), {PhB(OxMe2)2ImMes}Ir(?4-C8H12) (6), and {PhB(OxMe2)2ImMes}Ir(CO)2 (7) are synthesized along with ToMM(?4-C8H12) (M = Rh (8); M = Ir (9); ToM = tris(4,4-dimethyl-2-oxazolinyl)phenylborate). The spectroscopic and structural properties and reactivity of this series of compounds show electronic and steric effects of substituents on the imidazole (tert-butyl vs mesityl), effects of replacing an oxazoline in ToM with a carbene donor, and the influence of the donor ligand (CO vs C8H12). The reactions of K[2] and [M(?-Cl)(?2-C8H14)2]2 (M = Rh, Ir) provide {?4-PhB(OxMe2)2ImMes?CH2}Rh(?-H)(?-Cl)Rh(?2-C8H14)2 (10) and {PhB(OxMe2)2ImMes}IrH(?3-C8H13) (11). In the former compound, a spontaneous oxidative addition of a mesityl ortho-methyl to give a mixed-valent dirhodium species is observed, while the iridium compound forms a monometallic allyl hydride. Photochemical reactions of dicarbonyl compounds 5 and 7 result in C–H bond oxidative addition providing the compounds {?4-PhB(OxMe2)2ImMes?CH2}RhH(CO) (12) and {PhB(OxMe2)2ImMes}IrH(Ph)CO (13). In 12, oxidative addition results in cyclometalation of the mesityl ortho-methyl similar to 10, whereas the iridium compound reacts with the benzene solvent to give a rare crystallographically characterized cis-[Ir](H)(Ph) complex. Alternatively, the rhodium carbonyl 5 or iridium isocyanide {PhB(OxMe2)2ImMes}Ir(CO)CNtBu (15) reacts with PhSiH3 in the dark to form the silyl compound {PhB(OxMe2)2ImMes}RhH(SiH2Ph)CO (14) or {PhB(OxMe2)2ImMes}IrH(SiH2Ph)CNtBu (17). These examples demonstrate the enhanced thermal reactivity of {PhB(OxMe2)2ImMes}-supported iridium and rhodium carbonyl compounds in comparison to tris(oxazolinyl)borate, tris(pyrazolyl)borate, and cyclopentadienyl-supported compounds.

  6. ag thin films: Topics by E-print Network

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

    MgO, Ref. 21 Marcon, Marco 2 Multi-level surface enhanced Raman scattering using AgOx thin film Physics Websites Summary: by applying laser-direct writing (LDW) technique on...

  7. 10.1098/rsta.2003.1269 T&T Proof 03TA2005 5 September 2003

    E-Print Network [OSTI]

    Oxford, University of

    Science, University of Oxford, Oxford OX1 3PJ, UK Programming robots and other autonomous systems in the area of cinema post- production (Pollefeys et al. 2000), where analysis of a stored film sequence

  8. To link to this article: DOI: 10.1088/0957-4484/23/1/015603 URL: http://dx.doi.org/10.1088/0957-4484/23/1/015603

    E-Print Network [OSTI]

    Mailhes, Corinne

    ) deposited beforehand by magnetron sputtering. The plasma during the growth of the encapsulation SiOx Cy matrix are of increasing interest in many application fields such as solar cells [1, 2], sensors [3, 4

  9. airway cell cultures: Topics by E-print Network

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

    ..... . 5.1.5 Preparing 4 liters of IX medium 5.2 lOX Stocks: Preparation checklist. 5.3 Media... Summers, Max D.; Smith, Gale E. 1987-01-01 151 75 Prostaglandins of the A Series...

  10. ancient insect dna: Topics by E-print Network

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

    ..... . 5.1.5 Preparing 4 liters of IX medium 5.2 lOX Stocks: Preparation checklist. 5.3 Media... Summers, Max D.; Smith, Gale E. 1987-01-01 149 Managing Turfgrass Insects of the...

  11. advanced cell culture: Topics by E-print Network

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

    ..... . 5.1.5 Preparing 4 liters of IX medium 5.2 lOX Stocks: Preparation checklist. 5.3 Media... Summers, Max D.; Smith, Gale E. 1987-01-01 136 75 Prostaglandins of the A Series...

  12. animal cell culture: Topics by E-print Network

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

    ..... . 5.1.5 Preparing 4 liters of IX medium 5.2 lOX Stocks: Preparation checklist. 5.3 Media... Summers, Max D.; Smith, Gale E. 1987-01-01 149 75 Prostaglandins of the A Series...

  13. attract insect vectors: Topics by E-print Network

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

    ..... . 5.1.5 Preparing 4 liters of IX medium 5.2 lOX Stocks: Preparation checklist. 5.3 Media... Summers, Max D.; Smith, Gale E. 1987-01-01 13 The attraction of entomophagous...

  14. arabidopsis cell culture: Topics by E-print Network

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

    ..... . 5.1.5 Preparing 4 liters of IX medium 5.2 lOX Stocks: Preparation checklist. 5.3 Media... Summers, Max D.; Smith, Gale E. 1987-01-01 187 75 Prostaglandins of the A Series...

  15. a549 cell cultures: Topics by E-print Network

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

    ..... . 5.1.5 Preparing 4 liters of IX medium 5.2 lOX Stocks: Preparation checklist. 5.3 Media... Summers, Max D.; Smith, Gale E. 1987-01-01 123 75 Prostaglandins of the A Series...

  16. animal cell cultures: Topics by E-print Network

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

    ..... . 5.1.5 Preparing 4 liters of IX medium 5.2 lOX Stocks: Preparation checklist. 5.3 Media... Summers, Max D.; Smith, Gale E. 1987-01-01 149 75 Prostaglandins of the A Series...

  17. A Penalty-Interior-Point Algorithm for Nonlinear Constrained ...

    E-Print Network [OSTI]

    2012-02-11T23:59:59.000Z

    including sets of problems that exhibit degeneracy or are infeasible. ..... require specifications of first-order optimality conditions for subproblems (1.3) ...... Nonlinear Optimization, Technical Report, Rutherford Appleton Laboratory, Chilton, Ox-.

  18. Motion estimation using the differential epipolar equation Dep. Inteligencia Artificial

    E-Print Network [OSTI]

    Baumela, Luis

    Science University of Oxford 19 Parks Rd, Oxford (UK) lourdes@robots.ox.ac.uk P. Bustos Dep. Inform of Oxford 19 Parks Rd, Oxford (UK) ian@robots.ox.ac.uk Abstract We consider the motion estimation problem of the projection equation (t)m(t) = P(t)X = [Q(t) | T(t)] X, viz: ( + t + O(t2 ))(m + mt + O(t2 )) = ([Q | T] + [ Q

  19. Time-Homogeneous Diffusions with a Given Marginal at a Random Time

    E-Print Network [OSTI]

    on the occasion of his 60th birthday. e-mail: A.M.G.Cox@bath.ac.uk; web: www.maths.bath.ac.uk/mapamgc/ e-mail: D.Hobson@warwick.ac.uk; web: www.warwick.ac.uk/go/dhobson/ §e-mail: obloj@maths.ox.ac.uk; web: www.maths.ox.ac.uk/obloj/ 1 #12 Krein's spectral theory of strings. Both of the above proofs exploit deep known results. In the final

  20. Reducing a Companies Carbon Footprint through Energy Saving Best Practices at a Dairy Manufacturing Facility

    E-Print Network [OSTI]

    Kortan, Michael J.

    2010-12-17T23:59:59.000Z

    , logistics (truck traffic), raw product, finished product), share of best practices data bases, and compare different carbon calculation techniques. - 24 - Reference/Bibliography Energy Efficiency Enquiries Bureau, ETSU, Harwell, Oxforshire, OX11 0RA..., 1995 “Good Practice Guide 160 – Electric lighting controls” Crown Publishing, March 1997. Energy Efficiency Enquiries Bureau, ETSU, Harwell, Oxforshire, OX11 0RA, 1994 “Good Practice Case Study 169 – Energy efficient lighting in factories” Crown...

  1. IOP PUBLISHING SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS Sci. Technol. Adv. Mater. 10 (2009) 014605 (11pp) doi:10.1088/1468-6996/10/1/014605

    E-Print Network [OSTI]

    2009-01-01T23:59:59.000Z

    on the texture, phase assemblage and properties of low aspect ratio Bi2Sr2CaCu2Ox/AgMg wire Xiaotao Liu1]. Of the numerous high temperature superconductors (HTS) discovered since 1987, Bi2Sr2CaCu2Ox /AgMg (Bi2212/AgMg) composites are the only ones made in the form of a round cross-section wire with high critical current

  2. VARIABLE-ANGLE SPECTROSCOPIC ELLIPSOMETRY OF InAlP NATIVE OXIDE GATE DIELECTRIC LAYERS

    E-Print Network [OSTI]

    AlP-ox, In0.49Ga0.51P (InGaP), and InAlP have been determined by VASE measurements using a photon energy of the Optical Constants of InAlP-ox, InAlP, InGaP.......... 12 3.1 OverviewAlP and InGaP Optical Constants....................................... 26 Chapter 4: Characterizing

  3. Power-Performance Trade-Offs in Nanometer-Scale Multi-Level Caches Considering Total Leakage

    E-Print Network [OSTI]

    Bai, Robert; Kgil, Tae Ho; Sylvester, Dennis; Mudge, Trevor

    2011-01-01T23:59:59.000Z

    In this paper, we investigate the impact of T_{ox} and Vth on power performance trade-offs for on-chip caches. We start by examining the optimization of the various components of a single level cache and then extend this to two level cache systems. In addition to leakage, our studies also account for the dynamic power expanded as a result of cache misses. Our results show that one can often reduce overall power by increasing the size of the L2 cache if we only allow one pair of Vth/T_{ox} in L2. However, if we allow the memory cells and the peripherals to have their own Vth's and T_{ox}'s, we show that a two-level cache system with smaller L2's will yield less total leakage. We further show that two Vth's and two T_{ox}'s are sufficient to get close to an optimal solution, and that Vth is generally a better design knob than T_{ox} for leakage optimization, thus it is better to restrict the number of T_{ox}'s rather than Vth's if cost is a concern.

  4. The determination of volumes of forage produced after one year of protection in pine-hardwood stand as compared with production under current grazing practices 

    E-Print Network [OSTI]

    Seamans, Robert L

    1951-01-01T23:59:59.000Z

    la yaALal Alftllmeae ef the teyCtoaeaes for %he legree ef WLICRL Ol OOIOOOO SR 3INNRI?AIIQR OF VOKiWSL' OF FDRNIX PR)IXICNI k7%%t SKI ~ IIF ~XCe nI Fhe. NIIIneee 8Fuu W CeIFueu VZm l%8MSIOR ININI CIIIBm' IIIIAXXSS 1%NTICWI kpyrove4 e? to style... of enclosure. ~ ~ 39 ywg EWRRNQRt'LOW Oy %8AN88 & RNARI WAWCgy Atm CSI %MA% Oy PSOfNH0% RR ygyL4IWRA}0$ SgLIO kg 00?FAIRD WS% y3050t8lgg ggjSR ~ IQL44$50 ygN7ylggg Isaac ss4 ttabor sero fw4sasatsl astaral rsssareee of ihe 3aet yosao ttabor Coasts lssg...

  5. Computer solution of SU(3) crossing matrices for the Kronecker Product 8 x 10

    E-Print Network [OSTI]

    Wells, Alan Harvey

    1975-01-01T23:59:59.000Z

    Ib C-G ygLOE YES 'ERO+r I/0 CRFAIE 0'&Dl 5'li 5 4 5 YES C. G Vill HC ZEKOF OEO S 0 yscu& NO &'&S FliVO 5 KFCXii KCI 0. PHKFE J CTPK a FIVD MOOR OF EKEP77EFFT CKl LC 0' Fl TE C-G VJ&EOE EFROD47CT' CipO2 NO S ~STDPc" t C D E C... for reference. 4, v, y~ V. vgy~ (Z l5) (Izb-I + g ( Yb-Y with ts ( -I) (w, ~?~, ~, ly ~X Jr, ~t;~~??) = 4s'g V~1~g Vg 3 o +i ~j, +J ls ', Is V~ gy P ~ +AVE (S. l6 ) with = ( -1) ~ut (I Izc) + -'~( Yd-Yc We will also now include the equivalent formula...

  6. Characterization of PP2A regulatory B subunits in Fusarium verticillioides

    E-Print Network [OSTI]

    Shin, Joonhee

    2012-07-16T23:59:59.000Z

    ACC GGA AAC TAT CTC GCT PPR1-probR GCT CGT GGA TCG GTA TCG TCT TTA PPR1-scrF CAT AAT GGC CTG TTA GTG AGG CTG PPR1-scrR CGT ATA TGC TCC GCA TTG GTC TTG M13F TTG TAA AAC GAC GGC CAG TGA M13R CAG GAA ACA GCT ATG ACC ATG YG-R GAT GTA GGA GGG CGT GGA... GTG GCT GGA ATG T PPR2-NF ATA ATC GAA GCG CGT TCC CTC CAA CTG GA PPR2-NR GGT GGA TAT GAT CGA GGT CGA GGG TGG TAA GA PPR2-wtF CTG CGC TTC ATT GAG AGT CAG PPR2-scrF CGT CTG CTG CTC CAT ACA AGC PPR2-scrR GTC ATA TAG CCC TGA TAA CGA TCG C PPR2-prob...

  7. The influence of biotin on reproduction in the white rat

    E-Print Network [OSTI]

    Cooper, William Anderson

    1957-01-01T23:59:59.000Z

    ???fi ?G?i ???? ????G?? ???i???G?? ???? ???? ?G??? ?? ????? ???? ???i???A???G? G? ?i??G?????G? ??? ?G?Ai????f ???G???f???i? ?? ??G?????i? ????i?? ???? ??? ???i????i?? 9 ??Y405?7? ?6? ?4Y3r?? Y?G ?G???i? G? ?i??fi ????i ???? ?i?i ??i? ?? ???? ?????? l...?i???f?? ??? ???ff ?? ?G?? ???i? ??? ??? ??f?G??i? ??G??? ??? ?G????? ??? ??i ?i??????A G?i ??? ???ffi? ???? ??i f???i?????i ?G???i??? ? ?G??f G? ?? ?i?G????G?? G?????i? ?? ??i ?? ????iA???i? ?i??fi? G? ???? A?G??? l?G? ?i?G?? ?????A? ??i ?G???Gf ?i...

  8. A comparison of gasoline and LP-gas as a fuel for medium or small size farm tractors

    E-Print Network [OSTI]

    Maher, Thomas Francis

    1952-01-01T23:59:59.000Z

    X' Ter~a 3. n partial fuH'lllment oX the regulrementa Xor the SeSree of Me]ox SuhJecti3 JLSrlculcuzel En~lneerlnS Age X@58'SIAN 'NQCL ~ e a s e y al. e e a e o o + X R4VJ. 8W 8 f K4 5 Shalt Cgg@ e e ~ e 0 ~ e e e e I'8855OX' 854 IglLLXMQQC e ~ e e... ~ e ~ e e Xao PSN8@W e 0 e e 4 e e ~ ~ o ~ a ~ o ~ 3?e 888'LLt48 Qf EQQXX18 T98'b8 o e ~ a o o o ~ 5X Ve COSC 8lnd SuyyXy Of LP-BRS . . . . . . . SB VX e QOMllMLOXLS ~ o ~ ~ e ~ ~ ~ o ~ ~ ~ ~ a VXXo BB)115gPR+7e ~ ~ ~ 4 ~ ~ ~ ~ o 4 ~ 0 A...

  9. A metadata approach for clinical data management in translational genomics studies in breast cancer

    E-Print Network [OSTI]

    Papatheodorou, Irene; Crichton, Charles; Morris, Lorna; Maccallum, Peter; METABRIC Group, Molecular Taxonomy of Breast Cancer International Consortium; Davies, Jim; Brenton, James D; Caldas, Carlos

    2009-11-30T23:59:59.000Z

    Laboratory, Wolfson Building, Parks Road, Oxford, OX1 3QD, UK Email: Irene Papatheodorou* - ivp21@cam.ac.uk; Charles Crichton - Charles.Crichton@comlab.ox.ac.uk; Lorna Morris - ljm59@cam.ac.uk; Peter Maccallum - peter.maccallum@cancer.org.uk; METABRIC Group... Description Framework (RDF) [3,4] and the Web Ontology Language (OWL) [5] are still very much under development, they are already being applied widely in business, government, and scientific contexts [6]. Two Cancer Informatics projects, caBIG [7-10] and Can...

  10. High temperature crystalline superconductors from crystallized glasses

    DOE Patents [OSTI]

    Shi, Donglu (Downers Grove, IL)

    1992-01-01T23:59:59.000Z

    A method of preparing a high temperature superconductor from an amorphous phase. The method involves preparing a starting material of a composition of Bi.sub.2 Sr.sub.2 Ca.sub.3 Cu.sub.4 Ox or Bi.sub.2 Sr.sub.2 Ca.sub.4 Cu.sub.5 Ox, forming an amorphous phase of the composition and heat treating the amorphous phase for particular time and temperature ranges to achieve a single phase high temperature superconductor.

  11. Graded index and randomly oriented core-shell silicon nanowires with broadband and wide angle antireflection for photovoltaic cell applications

    E-Print Network [OSTI]

    Pignalosa, P; Qiao, L; Tseng, M; Yi, Yasha

    2011-01-01T23:59:59.000Z

    Antireflection with broadband and wide angle properties is important for a wide range of applications on photovoltaic cells and display. The SiOx shell layer provides a natural antireflection from air to the Si core absorption layer. In this work, we have demonstrated the random core-shell silicon nanowires with both broadband (from 400nm to 900nm) and wide angle (from normal incidence to 60\\degree) antireflection characteristics within AM1.5 solar spectrum. The graded index structure from the randomly oriented core-shell (Air/SiOx/Si) nanowires may provide a potential avenue to realize a broadband and wide angle antireflection layer.

  12. Astronomical Data Analysis Software and Systems XVI D1.1 ASP Conference Series, Vol. XXX, 2006

    E-Print Network [OSTI]

    Taylor, Mark

    with other environments, like the VO, and co­operating with specialised tools is clearly desirable, so we, Chilton, Didcot, Oxfordshire, OX11 0QX, UK Tim Jenness, Jamie Leech & Frossie Economou Joint Astronomy the PLASTIC protocol has been used to inter­operate with VO­enabled applications. 1. Introduction The JAC, has

  13. Analog computer fundamentals & application

    E-Print Network [OSTI]

    Patel, R.N

    1969-01-01T23:59:59.000Z

    the range for K/N as follows. o ~ g/~ ~ )ox[o~ The differential equation of motion is g= -g- ? il Jl K So corresponding voltage equation will be - -Sp - - / j &goal sa ~ J~9~3 ~gJo , p'0 z~ - qg - - i)q [- spJ 4 & Jo We are not interested in Y. So...

  14. Genet. Sel. Evol. 33 (2001) 417432 417 INRA, EDP Sciences, 2001

    E-Print Network [OSTI]

    Boyer, Edmond

    Genetics Unit, University of Agricultural Sciences and Veterinary Medicine, 3400 Cluj Napoca, Romania b International Group, Fyfield Wick, OX13 5NA, UK d Agricultural Research Station of Turda, Romania (Received 7 and the phenotype of the breed. These breeds are part of a conservation programme in Romania and marker information

  15. Good Sources of Nutrients: Iron

    E-Print Network [OSTI]

    Scott, Amanda; Replogle, Jacqueline

    2008-08-28T23:59:59.000Z

    ENP-2881 08-08 Good Sources of Nutrients Iron Buenas fuentes de nutrientes Hierro La funci?n del hierro Transporta ox?geno en la sangre para que su ? cuerpo tenga energ?a Facilita crecimiento? Proporciona energ?a que ayuda a los ni?os a ? jugar y...

  16. UPWELLING IN THE COSTA RICA DOME BY KLAUS WYRTKI

    E-Print Network [OSTI]

    . This current, the Costa Rica Coastal Current, and parts of the North Equatorial Current form a cyclonic circu'the horizontal circula~ion. The upwelling in the dome is caused by the cyclonic flow around the dome. When survey a deep-reaching" eddy transporting lOX 1018 cm.a/sec. "appeared to be separated and to drift north

  17. Pairs and heptamers of C70 molecules ordered via PTCDI-melamine supramolecular networks

    E-Print Network [OSTI]

    Castell, Martin

    Pairs and heptamers of C70 molecules ordered via PTCDI-melamine supramolecular networks Fabien Silly Department of Materials, University of Oxford, Parks Road, Oxford OX1 3PH, United Kingdom and Zernike Institute for Advanced Materials, University of Groningen, 9747 AG Groningen, The Netherlands Adam

  18. H-Bonding Supramolecular Assemblies of PTCDI Molecules on the Au(111) Surface F. Silly,,,|

    E-Print Network [OSTI]

    Castell, Martin

    H-Bonding Supramolecular Assemblies of PTCDI Molecules on the Au(111) Surface M. Mura, F. Silly; and Department of Materials, UniVersity of Oxford, Parks Road, Oxford OX1 3PH, United Kingdom ReceiVed: August 20) calculations, we studied supramolecular assemblies of highly symmetrical rectangular PTCDI molecules on the Au

  19. Intricate Hydrogen-Bonded Networks: Binary and Ternary Combinations of Uracil, PTCDI, and Melamine

    E-Print Network [OSTI]

    Castell, Martin

    of Materials, UniVersity of Oxford, Oxford, OX1 3PH, United Kingdom ReceiVed: NoVember 29, 2009; Re supramolecular networks from combinations of uracil, PTCDI, and melamine. The structures, which are formed on Au and other small organic molecules. Introduction A range of porous two-dimensional supramolecular networks

  20. Experimental and theoretical analysis of H-bonded supramolecular assemblies of PTCDA molecules

    E-Print Network [OSTI]

    Castell, Martin

    Experimental and theoretical analysis of H-bonded supramolecular assemblies of PTCDA molecules M Institute for Advanced Materials, University of Groningen, Nijenborgh 4, NL-9747 AG Groningen, The Netherlands 3Department of Materials, University of Oxford, Parks Road, Oxford OX1 3PH, United Kingdom 4CEA

  1. Epitaxial ordering of a perylenetetracarboxylic diimide-melamine supramolecular network driven by the Au,,111...-,,22 3... reconstruction

    E-Print Network [OSTI]

    Castell, Martin

    Epitaxial ordering of a perylenetetracarboxylic diimide-melamine supramolecular network driven. Castell1,b 1 Department of Materials, University of Oxford, Parks Road, Oxford OX1 3PH, United Kingdom 2 Zernike Institute for Advanced Materials, University of Groningen, 9747 AG Groningen, The Netherlands

  2. Generating Structurally Complex Test Cases by Data Mutation: A Case Study of Testing an Automated Modelling Tool

    E-Print Network [OSTI]

    Zhu, Hong

    - 1 - Generating Structurally Complex Test Cases by Data Mutation: A Case Study of Testing Brookes University, Oxford OX33 1HX, UK Email: hzhu@brookes.ac.uk ABSTRACT Generation of adequate test cases is difficult and expensive, especially for testing software systems whose input is structurally

  3. An accounting system for Florida Christian College

    E-Print Network [OSTI]

    Brough, Royce Donald

    1949-01-01T23:59:59.000Z

    posting from AG Voucher Regia tery &is account represents general fun' liabilii9. 8s of the college for eixich notes hove been given, Eo es may be given in se G'518&est of open Bccovnts BnQ f ox' short ge m loans i0 mcci general '. v~S requirement...

  4. Rev. sci. tech. Off. int. Epiz., 2008, 27 (2), 00-00 Predicted climate changes for the years to come

    E-Print Network [OSTI]

    Rev. sci. tech. Off. int. Epiz., 2008, 27 (2), 00-00 Predicted climate changes for the years 3PU, United Kingdom. E-mail: stoned@atm.ox.ac.uk (2) Tyndall Centre for Climate Change Research community to produce predictions of future climate change. Predictions for the next few decades

  5. Active control of the resistive wall mode with power saturation Li Li, Yue Liu, and Yueqiang Liu

    E-Print Network [OSTI]

    Active control of the resistive wall mode with power saturation Li Li, Yue Liu, and Yueqiang Liu://pop.aip.org/about/rights_and_permissions #12;Active control of the resistive wall mode with power saturation Li Li,1,a) Yue Liu,1 and Yueqiang, 116024, People's Republic of China 2 Euratom/CCFE Fusion Association, Culham Science Centre, Abingdon OX

  6. Lab Process AreaWhere CORAL Name It is: It does: Maker/Model Units per:(self-run) if staff EBL e-beam write24-041 Elionix 125 keV, hi-res e-beam writer Elionix F-125 7 hr 7

    E-Print Network [OSTI]

    Culpepper, Martin L.

    Lab Process AreaWhere CORAL Name It is: It does: Maker/Model Units per:(self-run) if staff EBL e, bakes 8 hr 12 EML photo photo coater-EML spinner coats PR Solitec 8 hr 12 EML metrologyhall dektak EML diffusion Resonetics rm OxidationTube tube furnace wet & dry ox, anneals, bakesLindberg 8 hr 12

  7. Stochastic Behaviour of the Electricity Bid Stack: from Fundamental Drivers to Power Prices

    E-Print Network [OSTI]

    Howison, Sam

    Stochastic Behaviour of the Electricity Bid Stack: from Fundamental Drivers to Power Prices Michael@maths.ox.ac.uk (01865 280613) Sam Howison Oxford-Man Institute, University of Oxford, Blue Boar Court, 9 Alfred Street on stochastic processes for underlying factors (fuel prices, power demand and generation capacity availability

  8. Energy Syst DOI 10.1007/s12667-009-0008-3

    E-Print Network [OSTI]

    Powell, Warren B.

    - siders a group of projects related to Solid Oxide Fuel Cells (SOFCs). Due to a budget constraint, only, such as the production cost or lifetime for a specific SOFC compo- nent. The collection of updated parameters to Solid Ox- ide Fuel Cells. Although creating an operable SOFC is significantly less challeng- ing than

  9. Overexpression of isocitrate lyase is an important strategy in the survival of Pseudomonas fluorescens exposed to aluminum

    E-Print Network [OSTI]

    Appanna, Vasu

    % of the earth's crust where it mainly occurs as biologically innocuous oxides and aluminosilicates. Acid rain in vacuoles [7]. Recently, the involvement of such organic acids as ox- alic acid, malic acid, succinic acid, and citric acid in the deliberate exclusion of Al from normal cellular activities has also been reported

  10. LJournal of Alloys and Compounds 334 (2002) 118130 www.elsevier.com/locate/jallcom

    E-Print Network [OSTI]

    Azad, Abdul-Majeed

    2002-01-01T23:59:59.000Z

    LJournal of Alloys and Compounds 334 (2002) 118­130 wwwZrO ) is a value-added ma- jets by aerospace industries [5]. Keeping in line with the3 terial of great relevance reactions, melting and sintering experiments with ox- conductors [8]. ides, non-oxides and precious alloys

  11. Spectroscopic characterization of monometallic and bimetallic model catalysts 

    E-Print Network [OSTI]

    Luo, Kai

    2009-06-02T23:59:59.000Z

    is the characterization of the surface composition, morphology, and electronic/geometric structure of the following catalysts: Au/TiOx, Au-Pd/Mo(110), Au- Pd/SiO2, Cu-Pd/Mo(110), and Sn/Pd(100). Structure-reactivity correlations during surface-alloy formation...

  12. Oxygen Kinetic Isotope Effects upon Catalytic Water Oxidation by a Monomeric Ruthenium Complex

    E-Print Network [OSTI]

    Roth, Justine P.

    Alfredo M. Angeles-Boza and Justine P. Roth* Department of Chemistry, Johns Hopkins University, 3400 North experimental data. INTRODUCTION Progress toward establishing a hydrogen economy1 requires a greater of oxidant have confirmed that 1 equiv of O2 is evolved every time 4 equiv of oxidant [ox] and base [B

  13. relatively recent trend in structure and bridge design is to incorporate materials that are significantly

    E-Print Network [OSTI]

    (CFCC) of ISmm (0.6 in.) in diameter, produced by Tokyo Rope Mfg. Co., Ltd. ofJapan, were used to preten reinforced for shear using 15.2 mm diameter CFCC stirrups and lOx 5 mm (0.4 x 0.2 in.) Leadline bars

  14. JOURNAL DE PHYSIQUE Colloque C3, suppl6ment au n09, Tome 48, septembre 1987

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    OF ALUMINIUM-LITHIUM-COPPER-MAGNESIUM- ZIRCONIUM ALLOYS-8090 AND 8091 W.S. MILLER, J. WHITE and D.J. LLOYD-Li,Al-Li-Mg,Al-Cu-Li. INTRODUCTION Aluminium alloys containing up to 3wt% lithium and cast using an ingot metallurgy route Alcan International Ltd., Southam road, Banbury, GB-Oxon OX16 7SP, Great-Britain ABSTRACT Aluminium

  15. Neurobiology of Disease Neuroinflammation Alters the Hippocampal Pattern of

    E-Print Network [OSTI]

    Wenk, Gary

    chronically infused with lipopolysaccharide (LPS) (0.25 g/h) into the fourth ventricle for 28 d. On day 29 and CA3 regions of LPS-infused rats, Arc and OX-6 (specific for major histocompatibility complex class II immunoreactivity) and elevated exploration-induced Arc expression compared with control-infused rats. In contrast

  16. I.T. Chapman, A. Kirk, S. Saarelma, J.R. Harrison, R. Scannell and the MAST Team

    E-Print Network [OSTI]

    /CCFE Fusion Association, Culham Science Centre, Abingdon, OX14 3DB, UK Copy of Paper submitted to Nuclear are outlined. The stability of the edge of MAST H-mode plasmas has been tested when lobe structures are present components [4]. In order to avoid damage to the vessel components in future tokamaks like ITER, a robust ELM

  17. Zirconium-doped tantalum oxide high-k gate dielectric films 

    E-Print Network [OSTI]

    Tewg, Jun-Yen

    2005-02-17T23:59:59.000Z

    A new high-k dielectric material, i.e., zirconium-doped tantalum oxide (Zr-doped TaOx), in the form of a sputter-deposited thin film with a thickness range of 5-100 nm, has been studied. Important applications of this new ...

  18. Electron Bernstein Wave Heating and Emission in the TCV Tokamak

    E-Print Network [OSTI]

    Petitpierre, Claude

    1 Electron Bernstein Wave Heating and Emission in the TCV Tokamak A. Mueck 1 , Y. Camenen 1 , S density tokamak plasmas is limited due to reflections of the waves at so-called wave cut-offs. Electron for the first time via the O-X- B mode conversion process in a standard aspect-ratio tokamak. The results

  19. How do communication systems emerge? Thomas C. Scott-Phillips1,*, Richard A. Blythe2, Andy Gardner3,4

    E-Print Network [OSTI]

    West, Stuart

    How do communication systems emerge? Thomas C. Scott-Phillips1,*, Richard A. Blythe2, Andy Gardner3, Oxford OX1 3BJ, UK Communication involves a pair of behaviours--a signal and a response--that are functionally interdepen- dent. Consequently, the emergence of communication involves a chicken-and-egg problem

  20. Reduction of Human Defensin 5 Affords a High-Affinity Zinc-Chelating Peptide

    E-Print Network [OSTI]

    Zhang, Yunfei

    Human defensin 5 (HD5) is a 32-residue cysteine-rich host-defense peptide that exhibits three disulfide bonds in the oxidized form (HD5[subscript ox]). It is abundant in small intestinal Paneth cells, which release HD5 ...

  1. Cancer risks attributable to low doses of ionizing radiation: Assessing what we really know

    E-Print Network [OSTI]

    Brenner, David Jonathan

    Triangle Park, NC 27711; jOffice of Radiation and Indoor Air, Environmental Protection Agency, WashingtonCancer risks attributable to low doses of ionizing radiation: Assessing what we really know David J Infirmary, Oxford OX2 6ME, United Kingdom; dRadiation and Genome Stability Unit, Medical Research Council

  2. ORIGINAL PAPER Social dominance, seasonal movements, and spatial

    E-Print Network [OSTI]

    Getz, Wayne M.

    of Pretoria, Pretoria 0002, South Africa F. Vollrath Department of Zoology, University of Oxford, Oxford OX1 3, access to resources, risk of predation, and even energy budgets. Recent advances in global positioning unprotected areas, and expend less energy than subordinate groups during the dry season. Hence, our data

  3. Discrete Gene Regulatory Networks (dGRNs): A novel approach to configuring sensor networks

    E-Print Network [OSTI]

    Jeavons, Peter

    and speed (sensor variables). The question is: how is this best done? A centralized optimization approach.lastname@comlab.ox.ac.uk Abstract--The operation of a sensor network is determined by a large number of parameters) it is general-purpose, and can be applied to a variety of parameter tuning problems; and 2) it generates

  4. Melting-Induced Enhancement of the Second-Harmonic Generation from Metal Nanoparticles A. M. Malvezzi,1

    E-Print Network [OSTI]

    in a SiOx matrix, with femtosecond laser pulses at 800 nm. A remarkable melting-induced enhancementMelting-Induced Enhancement of the Second-Harmonic Generation from Metal Nanoparticles A. M [3]. While consid- erable efforts have been mainly focused on selection of new materials

  5. Andy Bullock and Mike Acreman Hydrology and Earth System Sciences, 7(3), 358389 (2003) EGU

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Andy Bullock and Mike Acreman 358 Hydrology and Earth System Sciences, 7(3), 358389 (2003) © EGU The role of wetlands in the hydrological cycle Andy Bullock1 and Mike Acreman2 1 Independent Consultant, Ledbury, Herefordshire, HR8 2DX, UK 2 Centre for Ecology and Hydrology, Wallingford, Oxon. OX10 8BB, UK

  6. Applying MODFLOW to wet grassland in-field habitats: a case study from the Pevensey Levels, UK Hydrology and Earth System Sciences, 7(1), 4355 (2003) EGU

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Hydrology and Earth System Sciences, 7(1), 43­55 (2003) © EGU Applying MODFLOW to wet grassland in and Hydrology, Wallingford, OX10 8BB, UK Email for corresponding author: rbb@ceh.ac.uk Abstract Historical drainage improvements have created complex hydrological regimes in many low-lying, wet coastal grassland

  7. Integration of spatial datasets to suppor t the review of hydrometric networks and the identification of representative catchments Hydrology and Earth System Sciences, 8(6), 11031117 (2004) EGU

    E-Print Network [OSTI]

    Boyer, Edmond

    and the identification of representative catchments 1103 Hydrology and Earth System Sciences, 8(6), 11031117 (2004) © EGU of representative catchments C.L.R. Laize Centre for Ecology and Hydrology, Wallingford, Oxfordshire OX10 8BB, UK E into account the reduction in hydrological uncertainty brought about by the data added since the last network

  8. Recession-based hydrological models for estimating low flows in ungauged catchments in the Himalayas Hydrology and Earth System Sciences, 8(5), 891902 (2004) EGU

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Recession-based hydrological models for estimating low flows in ungauged catchments in the Himalayas 891 Hydrology and Earth System Sciences, 8(5), 891902 (2004) © EGU Recession-based hydrological.R. Young1 and S.R. Kansakar2 1 Centre for Ecology and Hydrology,Wallingford, Oxfordshire, OX10 8BB, UK 2

  9. . . . page 4 could provide the best tools and work with them collaboratively to solve their problems," the soft-spoken

    E-Print Network [OSTI]

    sensor for the IBEX mission. Photo:DavidSims,UNH-EOS #12;Says o'neill, "Before I visited Unh and walked · A University of New Hampshire Research Institute · Morse Hall, Durham, NH A Star Sensor is Born morgAn oX mission. The v-shape represents the aperture for the star sensor the two students have been working

  10. The Nature of Oxide Films on Tungsten in Acidic and Alkaline Solutions

    E-Print Network [OSTI]

    by the mass transport of a loosely bound WO3(H2O)x layer from the surface. Electrochemical impedance spectroscopy measurements found that W dissolution in acidic solution was associated with an adsorption, structure, and hydration as a function of solution pH and applied potential in situ, surface enhanced Raman

  11. Hafnium-doped tantalum oxide high-k gate dielectric films for future CMOS technology

    E-Print Network [OSTI]

    Lu, Jiang

    2007-04-25T23:59:59.000Z

    of the doped films were explained by their compositions and bond structures. The Hf-doped TaOx film is a potential high-k gate dielectric for future MOS transistors. A 5 Ã?Â? tantalum nitride (TaNx) interface layer has been inserted between the Hf-doped Ta...

  12. BIOINFORMATICS APPLICATIONS NOTE Vol. 27 no. 8 2011, pages 11701171

    E-Print Network [OSTI]

    Maini, Philip K.

    of Oxford, Oxford OX1 3QU, UK Associate Editor: Olga Troyanskaya ABSTRACT Motivation: The importance of biologically realistic stochastic simulations urgently requires development of efficient software. We present a new software tool STOCHSIMGPU that exploits graphics processing units (GPUs) for parallel stochastic

  13. Fuel Cell Reformer Emissions TIAX, LLC 1601 S. De Anza Blvd

    E-Print Network [OSTI]

    Ethanol Start-up PEMFC Anode Gas Gasoline Start-up PrOx Reformate AGB FeedAGB Feed Power RatingFuel Cell Reformer Emissions TIAX, LLC 1601 S. De Anza Blvd Cupertino, California 95014 TIAX Ref: D;2003 Merit Review_TIAX Reformer Emissions.ppt 1 Introduction Goals and Objectives The purpose of this study

  14. Open Archive TOULOUSE Archive Ouverte (OATAO) OATAO is an open access repository that collects the work of Toulouse researchers and

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    -iso-propoxide as titanium and oxygen precursors and hydrazine as a nitrogen source. The films composition was monitored pressure CVD MOCVD TiOxNy Hard coatings Titanium oxynitride coatings were deposited on various substrates by an original atmospheric pressure metal organic chemical vapor deposition (MOCVD) process using titanium tetra

  15. Phytoplankton Photosynthesis

    E-Print Network [OSTI]

    Kudela, Raphael M.

    Phytoplankton Photosynthesis · RedOx Reactions · Some more history · Quantum Yields · Photosynthetic Units · Physical Structure · The Z-Scheme · The Calvin-Benson Cycle · Measuring Photosynthesis #12) Heat 3) Photosynthesis So in our new terms, the QUANTUM YIELD of photosynthesis goes up as the quantum

  16. Agricultural Market Development Abroad. 

    E-Print Network [OSTI]

    Kirby, James E.; McNeely, John G.

    1965-01-01T23:59:59.000Z

    'GBK CGXXQBC L3. lip u318 *WG KB, "jOX' 88 t'ti16KGD t BZGBB C BX1 13 6 S 6 BD Pig. 10 navigational snd transportational aspects of the delta, and, flooding snd silting, could be solved. River access to Dacca by large steamers has been sharply red- uced...

  17. Project 3 Integrative Genomics (IG) Objective: To give a presentation of about 40-90 minutes duration at the end of the week covering the

    E-Print Network [OSTI]

    Goldschmidt, Christina

    Project 3 ­ Integrative Genomics (IG) Objective: To give a presentation of about 40-90 minutes duration at the end of the week covering the key aspects of the integrative genomics, which is the combined) "Integrative Genomics and Functional Explanation" downloadable from http://www.stats.ox.ac.uk/research/genome

  18. A410 Journal of The Electrochemical Society, 161 (3) A410-A415 (2014) 0013-4651/2014/161(3)/A410/6/$31.00 The Electrochemical Society

    E-Print Network [OSTI]

    Ceder, Gerbrand

    2014-01-01T23:59:59.000Z

    an asymmetric cell with an electric double-layer capacitor (EDLC) electrode and a red-ox battery electrode-infinite. Therefore, the full-cell specific capacitance (Ctot) of a hybrid capac- itor is dominated by the EDLC electrode. Usually EDLC electrodes are based on high surface area activated carbons (AC) and there- fore

  19. arXiv:1403.1470v1[astro-ph.SR]6Mar2014 Intensity enhancement of O VI ultraviolet emission lines in solar

    E-Print Network [OSTI]

    in solar spectra due to opacity F. P. Keenan Astrophysics Research Centre, School of Mathematics Science, University of Oxford, Rex Richards Building, South Parks Road, Oxford OX1 3QU, UK #12;­ 2 sources, and here we investigate the spatially-resolved solar atmosphere using measurements of the I(1032

  20. Isotopic Tracer Studies of Reaction Pathways for Propane Oxidative Dehydrogenation on Molybdenum Oxide Catalysts

    E-Print Network [OSTI]

    Iglesia, Enrique

    Isotopic Tracer Studies of Reaction Pathways for Propane Oxidative Dehydrogenation on Molybdenum of propane over ZrO2-supported MoOx catalysts. Competitive reactions of C3H6 and CH3 13 CH2CH3 showed combustion of propene, or by direct combustion of propane. A mixture of C3H8 and C3D8 undergoes oxidative

  1. IOP PUBLISHING SUPERCONDUCTOR SCIENCE AND TECHNOLOGY Supercond. Sci. Technol. 20 (2007) L59L62 doi:10.1088/0953-2048/20/10/L02

    E-Print Network [OSTI]

    2007-01-01T23:59:59.000Z

    of Bi2Sr2CaCu2Ox (Bi2212) wire has led to the development of high-field magnets at low temperature. Both-temperature superconductors (HTS) have advanced significantly and there are now three materials for which industry­8] and potentially for high-field racetrack magnets for accelerators. Bi2212 is also the only HTS conductor with high

  2. Progress in scale-up of second-generation high-temperature superconductors at SuperPower Inc

    E-Print Network [OSTI]

    Johnson, Peter D.

    ­431 (2005) 849­857 www.elsevier.com/locate/physc #12;Keywords: Second-generation HTS wire; Coated conductors. Introduction Second-generation (2-G) high-temperature superconductor (HTS) wires are referred as the YBa2Cu3Ox (YBCO)-type superconducting films coated conductors while first-generation (1-G) HTS wires as Bi

  3. *Corresponding author: Email: rainer.volkamer@colorado.edu; British Journal of Environment & Climate Change

    E-Print Network [OSTI]

    ratios for Ox' production, that are affected by emissions from large oil and natural gas operations author: Email: rainer.volkamer@colorado.edu; British Journal of Environment & Climate Change 3: A research flight on June 15, 2010was conducted over Bakersfield, CA and nearby areas with oil and natural

  4. Zirconium-doped tantalum oxide high-k gate dielectric films

    E-Print Network [OSTI]

    Tewg, Jun-Yen

    2005-02-17T23:59:59.000Z

    A new high-k dielectric material, i.e., zirconium-doped tantalum oxide (Zr-doped TaOx), in the form of a sputter-deposited thin film with a thickness range of 5-100 nm, has been studied. Important applications of this new dielectric material include...

  5. Open Archive TOULOUSE Archive Ouverte (OATAO) OATAO is an open access repository that collects the work of Toulouse researchers and

    E-Print Network [OSTI]

    Mailhes, Corinne

    . On the other hand, titanium nitride has a good thermal and electrical conductivity and a high hardness. Ti coatings [2], electrically switchable windows [3], transparent IR window electrodes [4], effectiveOxNy Hard coatings Titanium oxynitride coatings were deposited on various substrates by an original

  6. Visualizing uncertainty in reliability functions with application to aero engine overhaul

    E-Print Network [OSTI]

    Roberts, Stephen

    a challenge of efficient engine shop visit schedules, where reliable estimation of component risksVisualizing uncertainty in reliability functions with application to aero engine overhaul Mark. Electronic correspondence to: mark.ebden@eng.ox.ac.uk Armin Stranjak Strategic Research Centre, Rolls

  7. Atmos. Chem. Phys., 9, 3955, 2009 www.atmos-chem-phys.net/9/39/2009/

    E-Print Network [OSTI]

    Meskhidze, Nicholas

    Massachusetts Institute of Technology, Cambridge, Massachusetts, USA *now at: Department of Chemistry emission control policies directed to regulation of VOC emissions from diesel and area sources strategies in an urban area are typically directed towards the regulation of nitrogen ox- ides (NOx) and

  8. Phase Transformations in Pulsed Laser Deposited Nanocrystalline Tin Oxide Thin Films

    E-Print Network [OSTI]

    Reid, Scott A.

    Phase Transformations in Pulsed Laser Deposited Nanocrystalline Tin Oxide Thin Films Haiyan Fan August 20, 2002. Revised Manuscript Received November 11, 2002 Thin SnOx films have been synthesized of reducing gases,1-3 and thin films have been synthesized by various means including evapora- tion,4

  9. BioMed Central Page 1 of 13

    E-Print Network [OSTI]

    Linares, Mauricio

    Genética, Departamento de Ciencias Biologicas, Universidad de los Andes, P.O. Box 4976, Bogotá, Colombia, 2 of Statistics, Oxford University, 1 South Parks Road, Oxford, OX1 3TG, UK and 4FAS, Center for Systems Biology a change in chromosome number, is thought to be rare and has only been well documented in a handful

  10. In situ reduction and oxidation of nickel from solid oxide fuel cells in a Titan ETEM

    E-Print Network [OSTI]

    Dunin-Borkowski, Rafal E.

    In situ reduction and oxidation of nickel from solid oxide fuel cells in a Titan ETEM A. Faes1, Denmark antonin.faes@epfl.ch Keywords: In situ ETEM, nickel oxide, reduction, RedOx, SOFC Solid Oxide Fuel. C. Singhal, K. Kendall, High Temperature Solid Oxide Fuel Cell - Fundamentals, Design

  11. The JET Alfvn Eigenmode Local Manager for the real-time detection and tracking of a frequency-degenerate spectrum of MHD instabilities

    E-Print Network [OSTI]

    Lenstra, Arjen K.

    1 The JET Alfvén Eigenmode Local Manager for the real-time detection and tracking of a frequency,5 , A.Klein6 , P.Lavanchy1 , T.Panis1 , and JET-EFDA contributors JET-EFDA, Culham Science Centre, OX14, FR [3] Culham Centre for Fusion Energy, Culham Science Centre, Abingdon, UK [4] formerly: JET Joint

  12. Improving the evidence base for forestry: a stakeholder approach to

    E-Print Network [OSTI]

    of society." (A consultation on developing a new strategy for the UK, Department for Innovation Universities-relevant research priorities Gill Petrokofsky Department of Plant Sciences, University of Oxford gillian.petrokofsky@plants.ox.ac.uk. Decision-making & public opinion 7. Biofuel, energy from biomass 8. Carbon sequestration, carbon cycle 9

  13. Fast Memory-Efficient Generalized Belief Propagation

    E-Print Network [OSTI]

    Kumar, M. Pawan

    of Computing Oxford Brookes University Oxford, UK, OX33 1HX {pkmudigonda,philiptorr}@brookes.ac.uk http://cms.brookes.ac.uk that bp con- verges to stationary points of Bethe approximation of the free energy. They also proposed. Vogiatzis et al. [7] suggest a coarse-to-fine strategy for bp by grouping together similar labels. However

  14. Research on fusion neutron sources M. P. Gryaznevich

    E-Print Network [OSTI]

    proportional to plasma volume) can be large enough so that the plasma can be sufficiently hot for thermal, OXON, OX133DB UK Abstract. The use of fusion devices as powerful neutron sources has been discussed for decades. Whereas the successful route to a commercial fusion power reactor demands steady state stable

  15. ECE 103 Solid State Electronics Master Exam 2012 Assume silicon, room temperature, complete ionization.

    E-Print Network [OSTI]

    Wang, Deli

    ECE 103 Solid State Electronics Master Exam 2012 Assume silicon, room temperature, complete ionization. (q=1.6×10-19 C, ox=3.9×8.85×10-14 F/cm, si=11.7×8.85×10-14 F/cm, kT/q=0.0259 V, Eg=1.12 e

  16. Growth of Ag icosahedral nanocrystals on a SrTiO3,,001... support Fabien Silly and Martin R. Castella

    E-Print Network [OSTI]

    Castell, Martin

    . Castella Department of Materials, University of Oxford, Parks Road, Oxford OX1 3PH, United Kingdom Received identification of the supported shape of the icosahedral form. © 2005 American Institute of Physics. DOI: 10 positions. Therefore, for sufficiently small particles with a large surface area-to-volume ratio, multiply

  17. In Situ Polarization Modulation Infrared Reflection Absorption Spectroscopic and Kinetic Investigations of Heterogeneous Catalytic Reactions

    E-Print Network [OSTI]

    Cai, Yun

    2010-01-14T23:59:59.000Z

    below the temperature previously reported. Characterizations of highly catalytically active Au films have also been carried out. Electronic and chemical properties of (1 x 1)- and (1 x 3)-Au/TiOx/Mo(112) films are investigated by PM-IRAS using CO as a...

  18. Drinking Water Problems: Copper (Spanish) 

    E-Print Network [OSTI]

    Dozier, Monty; McFarland, Mark L.; Lesikar, Bruce J.

    2006-01-25T23:59:59.000Z

    de las siguientes caracter?sticas: pH bajo, contenido alto de salinidad, contenido alto de ox?geno disuelto y/o corrientes el?ctricas pasando a trav?s de la misma. Hacer pruebas adecuadas del agua y obtener un diagn?stico de la causa de las...

  19. Parallel Computation In Econometrics: A Simplified Approach Jurgen A. Doornik

    E-Print Network [OSTI]

    Wolfe, Patrick J.

    Parallel Computation In Econometrics: A Simplified Approach Jurgen A. Doornik , Neil Shephard Parallel computation has a long history in econometric computing, but is not at all wide spread. We believe optimization; Econometrics; High-performance computing; Matrix-programming language; Monte Carlo; MPI; Ox

  20. THE MOTION OF SUPERCONDUCTING VORTICES IN THIN FILMS OF VARYING THICKNESS

    E-Print Network [OSTI]

    Chapman, Jon

    with superconductor/vacuum interfaces is considered. A vortex is #12;rst shown to intersect such an interface normallyTHE MOTION OF SUPERCONDUCTING VORTICES IN THIN FILMS OF VARYING THICKNESS S.J. CHAPMAN #3; D.R. HERON y MATHEMATICAL INSTITUTE OXFORD OX1 3LB UK Abstract. The interaction of superconducting vortices

  1. Topics in Computational Biology Iceland 2.6.9-6.6.9

    E-Print Network [OSTI]

    Goldschmidt, Christina

    Genomics: 1000 genomes, Integrative Genomics: Basic data types, Comparative Genomics: Signals, Comparative Biology: Networks, Integrative Data Analysis ­ Mapping, Metabolomics, Proteomics, Transcriptomics, Genomic can be found at http://www.stats.ox.ac.uk/genome/readingprojects. · Analysis projects, where all

  2. Theoretical Population Biology 74 (2008) 233250 Contents lists available at ScienceDirect

    E-Print Network [OSTI]

    Taylor, Jay

    reserved. 1. Introduction The impact of environmental variation on genetic polymor- phism has beenDirect Theoretical Population Biology journal homepage: www.elsevier.com/locate/tpb Environmental variation, University of Oxford, Oxford OX1 3TG, United Kingdom a r t i c l e i n f o Article history: Received 27

  3. Journal of Nuclear Materials, Volumes 367-370, 2007, 1586-1589 Designing Optimised Experiments for the International Fusion

    E-Print Network [OSTI]

    Cambridge, University of

    Journal of Nuclear Materials, Volumes 367-370, 2007, 1586-1589 Designing Optimised Experiments for the International Fusion Materials Irradiation Facility R. Kemp1 G.A. Cottrell2 and H.K.D.H. Bhadesia1 1 Department EURATOM/UKAEA Fusion Association, Culham Science Centre, Abingdon, Oxon., OX14 3DB, UK Abstract

  4. 10.1261/rna.2753211Access the most recent version at doi: 2011 17: 1204-1212 originally published online May 24, 2011RNA

    E-Print Network [OSTI]

    Das, Rhiju

    , Colorado 80309, USA 9 Department of Chemistry, Bowling Green State University, Bowling Green, Ohio 43403, USA 10 Department of Mathematics and Statistics, Bowling Green State University, Bowling Green, Ohio,6 CRAIG L. ZIRBEL,10 and ALAIN LAEDERACH4,11 1 Oxford e-Research Center, University of Oxford, OX1 3

  5. H Zhu, Validating Algebraic Class Testing in Final Algebra January 16, 2002 Validating Algebraic Class Testing in Final Algebra

    E-Print Network [OSTI]

    Zhu, Hong

    H Zhu, Validating Algebraic Class Testing in Final Algebra January 16, 2002 1 Validating Algebraic Class Testing in Final Algebra Hong Zhu Department of Computing, Oxford Brookes University Wheatley Campus, Oxford OX33 1HX, UK, Email: hzhu@brookes.ac.uk Abstract Algebraic class testing is an object

  6. Spectroscopic characterization of monometallic and bimetallic model catalysts

    E-Print Network [OSTI]

    Luo, Kai

    2009-06-02T23:59:59.000Z

    is the characterization of the surface composition, morphology, and electronic/geometric structure of the following catalysts: Au/TiOx, Au-Pd/Mo(110), Au- Pd/SiO 2, Cu-Pd/Mo(110), and Sn/Pd(100). Structure-reactivity correlations during surface-alloy formation...

  7. A. La Rosa Lecture Notes APPLIED OPTICS

    E-Print Network [OSTI]

    variation of the electric field of the incident radiation Since the corresponding Poynting vector is given ox , which will depend on the electric field amplitude of the incident radiation. So, we need to find electrical charge emits radiation; the latter is camouflaged in the parameter . Note 2: Equation (11

  8. MYUNGHWAN PARK 6200 Westchester Park Drive, APT 1510, College Park, Maryland 20740

    E-Print Network [OSTI]

    Lathrop, Daniel P.

    RuOx, M. Park Page 1/5 #12;· Developed a low power voltage regulator for energy harvesting power system. · Assisted in integration of the energy harvesting power system of battery, voltage regulator effect of microwave CMOS circuits. · Built numerical and Berkeley Short-channel IGFET(BSIM) model

  9. J. R. Harrison, G. M. Fishpool and A. Kirk CCFE-PR(13)33

    E-Print Network [OSTI]

    their parametric dependencies, by fitting power and particle flux profiles measured by divertor Langmuir probes heat and particle loads from first principles. Instead, estimates of heat flux profiles in future Centre, Abingdon, OX14 3DB, UK. Abstract The distribution of particles and power to plasma

  10. FDR3 --A Modern Refinement Checker for CSP Thomas Gibson-Robinson, Philip Armstrong,

    E-Print Network [OSTI]

    Oxford, University of

    FDR3 -- A Modern Refinement Checker for CSP Thomas Gibson-Robinson, Philip Armstrong, Alexandre.roscoe}@cs.ox.ac.uk Abstract. FDR3 is a complete rewrite of the CSP refinement checker FDR2, incorporating a significant number describe the new algorithm that FDR3 uses to construct its internal representation of CSP processes

  11. FDR3 --A Modern Refinement Checker for CSP Thomas Gibson-Robinson, Philip Armstrong,

    E-Print Network [OSTI]

    Oxford, University of

    FDR3 -- A Modern Refinement Checker for CSP Thomas Gibson-Robinson, Philip Armstrong, Alexandre.roscoe}@cs.ox.ac.uk Abstract. FDR3 is a complete rewrite of the CSP refinement checker FDR2, incorporating a significant number describe the new algorithm that FDR3 uses to construct its in- ternal representation of CSP processes

  12. CSP is expressive enough for A.W. Roscoe

    E-Print Network [OSTI]

    Oxford, University of

    CSP is expressive enough for A.W. Roscoe Oxford University Computing Laboratory {Bill.Roscoe@comlab.ox.ac.uk} Abstract. Recent results show that Hoare's CSP, augmented by one additional operator, can express every operator whose operational semantics are expressible in a new notation and are therefore "CSP

  13. Introduction Student statistics tables for 20089 are now available

    E-Print Network [OSTI]

    Oxford, University of

    Administration Division Web site (www.admin.ox.ac.uk/sr/--click on `Student Statis- tics' on the left of the page comparison with the previous two years. The same `snapshot' forms the basis of the Higher Education Student include data on Continuing Education (OUDCE), which are not held in OSS. The data are prepared

  14. International Journal of Modern Physics C FLUCTUATING INTERFACES, SURFACE TENSION, AND

    E-Print Network [OSTI]

    International Journal of Modern Physics C FLUCTUATING INTERFACES, SURFACE TENSION, AND CAPILLARY WAVES: AN INTRODUCTION VLADIMIR PRIVMAN Department of Theoretical Physics, University of Oxford \\Lambda 1 Keble Road, Oxford OX1 3NP, UK Received 25 June 1992 ABSTRACT We present an introduction to modern

  15. Biodiversity Toolkit Why we DON'T DIG PEAT

    E-Print Network [OSTI]

    Melham, Tom

    Biodiversity Toolkit Peat free Why we DON'T DIG PEAT The collegiate University is working to help the environment and wildlife by phasing out its use of products containing peat, such as compost and soil improver.admin.ox.ac.uk/estates/environment/biodiversity Cut your carbon emissions Wildlife living in peat bogs includes foxes, Irish hares, pygmy shrews, red

  16. M-L. Mayoral, V. Bobkov, A. Czarnecka, I. Day, A. Ekedahl, P. Jacquet, M. Goniche, R. King, K. Kirov, E. Lerche, J. Mailloux, D. Van Eester, O. Asunta,

    E-Print Network [OSTI]

    , Culham Centre for Fusion Energy (CCFE), Library, Culham Science Centre,Abingdon, Oxfordshire, OX14 3DB, UK. The United Kingdom Atomic Energy Authority is the copyright holder. #12;On the Challenge, 01-497 Warsaw, Poland. 5 Association EURATOM-CEA, CEA/DSM/IRFM, Cadarache 13108 Saint Paul Lez

  17. Achieving Pareto Optimality Through Distributed Learning Jason R. Marden, H. Peyton Young, and Lucy Y. Pao

    E-Print Network [OSTI]

    Marden, Jason R.

    , United Kingdom, peyton.young@nuffield.ox.ac.uk. Lucy Y. Pao is with the Department of Electrical in networks and the design and control of wind farms. The proof of the proposed learning algorithm relies-09-1-0751 and #N00014-12-1-0643, and the Center for Research and Education in Wind. The conference version

  18. EURATOM/UKAEA Fusion Association Culham Science Centre

    E-Print Network [OSTI]

    data above 20 MeV. Further, earlier intermediate energy activation libraries, MENDL-2, WIND and IEAF UKAEA EURATOM/UKAEA Fusion Association Culham Science Centre Abingdon Oxfordshire OX14 3DB United Kingdom Telephone: +44 1235 466586 Facsimile: +44 1235 466435 UKAEA FUS 529 EURATOM/UKAEA Fusion

  19. 7. Saturn Atmospheric Structure and Dynamics Anthony D. Del Genio

    E-Print Network [OSTI]

    Atmospheric, Oceanic & Planetary Physics, Clarendon Laboratory, Parks Road, Oxford OX1 3PU, United Kingdom in the equatorial zone and slightly stronger winds occur at deeper levels. Eddies supply energy to the jets atmospheres similar to Jupiter. Zonal winds have remained fairly steady since the time of Voyager except

  20. Cavitation-induced ignition of cryogenic hydrogen-oxygen fluids V. V. Osipov,1,a

    E-Print Network [OSTI]

    Muratov, Cyrill

    Cavitation-induced ignition of cryogenic hydrogen-oxygen fluids V. V. Osipov,1,a C. B. Muratov,2 E-ignite in the process of their sudden mixing. Here, we propose a cavitation-induced self-ignition mechanism that may a cavitation-induced self- ignition mechanism of cryogenic H2/Ox fluids. Cavitation is the formation

  1. The effects of ethylenediurea and sodium erythorbate on photosynthetic function of ozone-exposed loblolly pine seedlings

    E-Print Network [OSTI]

    Kuehler, Eric Anthony

    1995-01-01T23:59:59.000Z

    -top chambers in east Texas for one growing season beginning in April 1994 while being exposed to either sub-ambient (CF), approximate ambient (NF), 1.5Y,, 2.OX, or 2.5X ambient ozone levels. Net photosynthesis (A), stomatal conductance (g), and chloroplast...

  2. Waste Toolkit A-Z How can I recycle computers?

    E-Print Network [OSTI]

    Melham, Tom

    Waste Toolkit A-Z Computers How can I recycle computers? The University policy for computer disposal is outlined in detail, here: www.ict.ox.ac.uk/oxford/disposal/index.xml Recycle/reuse 1. Before If the computer can't be reused, it should be recycled by an authorised contractor who will guarantee that all

  3. Initial growth stages of titanium and barium oxide films on SrTiO3(001) Chen Wu, Karen Kruska, Martin R. Castell

    E-Print Network [OSTI]

    Castell, Martin

    used in catalysis [1­3], gas sensing [4­6] and solar energy conversion [7­9], while BaO finds, Martin R. Castell Department of Materials, University of Oxford, Parks Road, Oxford OX1 3PH, UK a b applications in- cluding high current density cathodes [10­12], thermionic energy converters [13] and optical

  4. DOI 10.1007/s11081-013-9226-6 A mixed-integer nonlinear program for the optimal

    E-Print Network [OSTI]

    the system include lead-acid batteries, photovoltaic cells, solid ox- ide fuel cells, heat exchangers integer restrictions, and modeling the variable electric efficiency of the fuel cells and the variable power using non-renewable technologies such as reciprocating engines, microturbines, and fuel cells

  5. ReaxFF Reactive Force Field for Molecular Dynamics Simulations of Hydrocarbon Kimberly Chenoweth, Adri C. T. van Duin, and William A. Goddard, III*

    E-Print Network [OSTI]

    Goddard III, William A.

    MoOx heterogeneous cata- lysts,22 fuel cells,23 crack propagation in silicon crystals,24 dissociation of H2 on Pt additional transition states and chemical reactivity of systems relevant to these reactions and optimizedFF potential obtained after parameter optimization, we performed a range of NVT-MD simulations on various

  6. Implicit Surface Tension Formulation with a Lagrangian Surface mesh on an Eulerian Simulation Grid

    E-Print Network [OSTI]

    Thrun, Sebastian

    Implicit Surface Tension Formulation with a Lagrangian Surface mesh on an Eulerian Simulation Grid framework for forces on a Lagrangian mesh to the case of surface tension force, which when treated explicitly leads to a tight t = O(x3/2 ) time step restriction. By applying surface tension as an implicit

  7. A New Incompressibility Discretization for a Hybrid Particle MAC Grid Representation with Surface Tension

    E-Print Network [OSTI]

    Fedkiw, Ron

    implicit surface tension for our novel hybrid discretization, we demonstrate preliminary results for both. Surface tension forces exacerbate the situation by imposing a strict t = O(x3/2 ) time step restriction formulation of surface tension by looking at the changes of curvature over time. This was simplified in [26

  8. ATOMIC-LAYER-DEPOSITED ALUMINUM OXIDE FOR THE SURFACE PASSIVATION OF HIGH-EFFICIENCY SILICON SOLAR CELLS

    E-Print Network [OSTI]

    ATOMIC-LAYER-DEPOSITED ALUMINUM OXIDE FOR THE SURFACE PASSIVATION OF HIGH-EFFICIENCY SILICON SOLAR to those measured on reference cells passivated by an aluminum-annealed thermal SiO2, while those of the Al of aluminum ox- ide (Al2O3) grown by atomic layer deposition (ALD) pro- vide an excellent level of sur

  9. algal cell cultures: Topics by E-print Network

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

    ..... . 5.1.5 Preparing 4 liters of IX medium 5.2 lOX Stocks: Preparation checklist. 5.3 Media... Summers, Max D.; Smith, Gale E. 1987-01-01 First Page Previous Page 1 2 3 4 5 6 7...

  10. Evaluation of Plasma Resistant Hollow Fiber Membranes For Artificial Lungs

    E-Print Network [OSTI]

    Federspiel, William J.

    Evaluation of Plasma Resistant Hollow Fiber Membranes For Artificial Lungs HEIDE J. EASH,* HEATHER in artificial lungs (ox- ygenators) undergo plasma leakage (or wetting) in which blood plasma slowly fills2 gas permeance of a plasma resistant fiber imposes the greatest constraint upon artificial lung

  11. Oil and Gas CDT Coupled flow of water and gas

    E-Print Network [OSTI]

    Henderson, Gideon

    Oil and Gas CDT Coupled flow of water and gas during hydraulic fracture in shale The University of Oxford http://www.earth.ox.ac.uk/people/profiles/academic/joec Key Words Shale gas, hydraulic fracture, groundwater contamination, transport in porous media Overview Recovery of natural gas from mudstone (shale

  12. Biotransformations CHIMIA 2009, 63, No. 6 309 doi:10.2533/chimia.2009.309 Chimia 63 (2009) 309312 Schweizerische Chemische Gesellschaft

    E-Print Network [OSTI]

    Arnold, Frances H.

    2009-01-01T23:59:59.000Z

    and environmental costs associated with conventional oxidation processes. We have used methods of directed evolution Simple reduced hydrocarbons obtained from petroleum feedstocks are used to produce over 90% of the world] This process begins with the ox- idation of hydrocarbons to install functional groups that enable subsequent

  13. EUROPEAN STUDIES CENTRE St Antony's College University of Oxford

    E-Print Network [OSTI]

    Oxford, University of

    Turkey and European Union Energy Policy Hasan Murat Mercan (Turkish Deputy Minister for Energy: http://www.sant.ox.ac.uk/esc/fanddregistration.html Week 3 Monday 6th May 5pm SEESOX Seminar Serbia Dejan Popovi (Ambassador of Serbia to the United Kingdom) Discussant: Elizabeth Roberts (Trinity College

  14. Atmos. Chem. Phys., 10, 1070510716, 2010 www.atmos-chem-phys.net/10/10705/2010/

    E-Print Network [OSTI]

    Oxford, University of

    occuring due to high cloud cover and lower AODs being found in large clear- sky regions. Daily median AATSR. M. Sayer (sayer@atm.ox.ac.uk) 1 Introduction Aerosol direct and indirect radiative effects are among the least certain contributions to radiative forcing (Forster et al., 2007; Stevens and Feingold, 2009

  15. Accounting methods for recognition of fixed asset underdepreciation

    E-Print Network [OSTI]

    Hidell, Richard Robinson

    1948-01-01T23:59:59.000Z

    ? can bo ob3ectivv3-. notA&d and t1xe?rice of the &&roduct, o&&)usted accordtng3y& but, also by antici1&atcd 1&igher ra?lace- lilt costa of assets &s&ich are v&carin&", out ox' becoainp, obso3ste and . '&ust be rc;&laced no&x or scrutiny in the uture... continuity of business &3vnands that such a condition bs recognised and provided for in ono ~m&cr ox a?ot?er, Xn a u&re i&a&ed]. ate sonco~ the 1&robls&z of accuracy of incone detox. &ination arises. &&& Large profits reported by ooroorations ha?e bosn...

  16. GENETIC MODIFICATION OF GIBBERELLIC ACID SIGNALING TO PROMOTE CARBON SEQUESTRATION IN TREE ROOTS AND STEMS

    SciTech Connect (OSTI)

    Busov, Victor

    2013-03-05T23:59:59.000Z

    Semidwarfism has been used extensively in row crops and horticulture to promote yield, reduce lodging, and improve harvest index, and it might have similar benefits for trees for short-rotation forestry or energy plantations, reclamation, phytoremediation, or other applications. We studied the effects of the dominant semidwarfism transgenes GA Insensitive (GAI) and Repressor of GAI-Like, which affect gibberellin (GA) action, and the GA catabolic gene, GA 2-oxidase, in nursery beds and in 2-year-old high-density stands of hybrid poplar (Populus tremula ? Populus alba). Twenty-nine traits were analyzed, including measures of growth, morphology, and physiology. Endogenous GA levels were modified in most transgenic events; GA(20) and GA(8), in particular, had strong inverse associations with tree height. Nearly all measured traits varied significantly among genotypes, and several traits interacted with planting density, including aboveground biomass, root-shoot ratio, root fraction, branch angle, and crown depth. Semidwarfism promoted biomass allocation to roots over shoots and substantially increased rooting efficiency with most genes tested. The increased root proportion and increased leaf chlorophyll levels were associated with changes in leaf carbon isotope discrimination, indicating altered water use efficiency. Semidwarf trees had dramatically reduced growth when in direct competition with wild-type trees, supporting the hypothesis that semidwarfism genes could be effective tools to mitigate the spread of exotic, hybrid, and transgenic plants in wild and feral populations. We modified gibberellin (GA) metabolism and signaling in transgenic poplars using dominant transgenes and studied their effects for 3 years under field conditions. The transgenes that we employed either reduced the bioactive GAs, or attenuated their signaling. The majority of transgenic trees had significant and in many cases dramatic changes in height, crown architecture, foliage morphology, flowering onset, floral structure, and vegetative phenology. Most transgenes elicited various levels of height reduction consistent with the roles of GA in elongation growth. Several other growth traits were proportionally reduced, including branch length, internode distance, and leaf length. In contrast to elongation growth, stem diameter growth was much less affected, suggesting that semi-dwarf trees in dense stands might provide high levels of biomass production and carbon sequestration. The severity of phenotypic effects was strongly correlated with transgene expression among independent transgenic events, but often in a non-linear manner, the form of which varied widely among constructs. The majority of semi-dwarfed, transgenic plants showed delayed bud flush and early bud set, and expression of a native GAI transgene accelerated first time flowering in the field. All of the phenotypic changes observed in multiple years were stable over the 3 years of field study. Our results suggest that transgenic modification of GA action may be useful for producing semi-dwarf trees with modified growth and morphology for horticulture and other uses. We studied the poplar C(19) gibberellin 2-oxidase (GA2ox) gene subfamily. We show that a set of paralogous gene pairs differentially regulate shoot and root development. ? PtGA2ox4 and its paralogous gene PtGA2ox5 are primarily expressed in aerial organs, and overexpression of PtGA2ox5 produced a strong dwarfing phenotype characteristic of GA deficiency. Suppression of PtGA2ox4 and PtGA2ox5 led to increased biomass growth, but had no effect on root development. By contrast, the PtGA2ox2 and PtGA2ox7 paralogous pair was predominantly expressed in roots, and when these two genes were RNAi-suppressed it led to a decrease of root biomass. ? The morphological changes in the transgenic plants were underpinned by tissue-specific increases in bioactive GAs that corresponded to the predominant native expression of the targeted paralogous gene pair. Although RNAi suppression of both paralogous pairs led to changes in wood developmen

  17. Final Technical Report

    SciTech Connect (OSTI)

    Logan, Jesse, L; Witmer, Dennis, PhD

    2012-07-29T23:59:59.000Z

    The overall goal of this project was to design, evaluate, and engineer a Vanadium Red-Ox Flow Battery's integration into an existing wind site and micro-grid environment to determine if it is possible to achieve a fifteen percent reduction of diesel fuel usage during periods of peak load and otherwise stabilize the grid in potential high wind penetration systems. The bulk of the work was done by modeling the existing hybrid wind-diesel system and the proposed system with added flow battery storage. The flow battery was changed from a Vanadium Red-Ox to a Zinc Bromine flow battery by a different manufacturer during the modeling process. Several complications arose, but modeling proved to be successful and is ongoing. The development of a modeling platform for flow battery energy storage is a key element in evaluating both economic benefits and dispatch strategies for high penetration in micro-grid wind-diesel systems.

  18. A nucleotide-level coarse-grained model of RNA

    E-Print Network [OSTI]

    Šulc, Petr; Ouldridge, Thomas E; Doye, Jonathan P K; Louis, Ard A

    2014-01-01T23:59:59.000Z

    We present a new, nucleotide-level model for RNA, oxRNA, based on the coarse-graining methodology recently developed for the oxDNA model of DNA. The model is designed to reproduce structural, mechanical and thermodynamic properties of RNA, and the coarse-graining level aims to retain the relevant physics for RNA hybridization and the structure of single- and double-stranded RNA. In order to explore its strengths and weaknesses, we test the model in a range of nanotechnological and biological settings. Applications explored include the folding thermodynamics of a pseudoknot, the formation of a kissing loop complex, the structure of a hexagonal RNA nanoring, and the unzipping of a hairpin motif. We argue that the model can be used for efficient simulations of the structure of systems with thousands of base pairs, and for the assembly of systems of up to hundreds of base pairs. The source code implementing the model is released for public use.

  19. A nucleotide-level coarse-grained model of RNA

    E-Print Network [OSTI]

    Petr Šulc; Flavio Romano; Thomas E. Ouldridge; Jonathan P. K. Doye; Ard A. Louis

    2014-03-17T23:59:59.000Z

    We present a new, nucleotide-level model for RNA, oxRNA, based on the coarse-graining methodology recently developed for the oxDNA model of DNA. The model is designed to reproduce structural, mechanical and thermodynamic properties of RNA, and the coarse-graining level aims to retain the relevant physics for RNA hybridization and the structure of single- and double-stranded RNA. In order to explore its strengths and weaknesses, we test the model in a range of nanotechnological and biological settings. Applications explored include the folding thermodynamics of a pseudoknot, the formation of a kissing loop complex, the structure of a hexagonal RNA nanoring, and the unzipping of a hairpin motif. We argue that the model can be used for efficient simulations of the structure of systems with thousands of base pairs, and for the assembly of systems of up to hundreds of base pairs. The source code implementing the model is released for public use.

  20. A beta-type fully implicit reservoir simulator with variable bubble point and dew point 

    E-Print Network [OSTI]

    Boe, Jarle

    1980-01-01T23:59:59.000Z

    in the nomenclature, The continuity equation for each phase is: -Q =-B ?, ', (SB, ) (4) +- ? 'uR ? Q-QR=-Pl ? (SB+SBR)(5) ax gx ax ox so g oso 3t gg ooso u -Q = 8 ?. (SB) a ax wx w at w w (6) Combining equations (1) - (6), the diffusivity equation for each... phase can be expressed as fo11ows: Oi1 equation: Ck k B r aP 8 xroo o y)+Q=B(SB) ax u;x ox o at o o 0 The gas equation: +Q +QR =B? a g o so at (SB +SBR ) g g 0 0 so Water equation: Ck k B & aP a xrww/ w 1 a ( ? -v )+Q =B ? (SB) ax u 43x wx...

  1. Plasma Surface Modification of Polymer Backsheets: Origins of Future Interfacial Barrier/Backsheet Failure

    SciTech Connect (OSTI)

    Pankow, J. W.; Glick, S. H.

    2005-11-01T23:59:59.000Z

    Flexible polymer substrates coated with inorganic oxide moisture barriers are a potential replacement for glass backsheets in thin film PV modules. Silicon oxynitride (SiOxNy) deposited by PECVD on polyethylene terephthalate (PET) represents one potential new backsheet candidate. Barrier deposition runs at NREL have typically included a nitrogen-rich plasma pretreatment prior to actual barrier deposition with the intention of cleaning the PET surface as well as enhancing adhesion of the SiOxNy barrier film to PET; however, test coupons of PET/barrier/EVA/TPE failed after damp heat exposure. PET substrates exposed to plasma conditions similar to those used in pre-treatment were examined by X-ray photoelectron spectroscopy (XPS) to reveal new low molecular weight PET fragments are created which are volatile upon heating and water soluble. Failure analysis of the coupons determined that the moisture barrier is, in fact, transferred to the encapsulant side.

  2. Corso di Laurea in Ingegneria Meccanica Anno Accademico 2012/2013

    E-Print Network [OSTI]

    Demeio, Lucio

    O(x, y, z) indicato in figura (con l'asse z perpendicolare al piano della figura) e determinare le asse x (vedi figura), mentre l'asta ha l'estremo A saldato su un punto del disco a distanza d dal proiezione ortogonale D sull'asse x. x d y A C D R,M B O l,m Calcolare le configurazioni di equilibrio e

  3. Molecular Dynamics Simulation of GaAs Molecular Beam Epitaxy D. A. Murdick,1

    E-Print Network [OSTI]

    Wadley, Haydn

    of Virginia, Charlottesville, Virginia 22904, USA 2 Department of Materials, University of Oxford, Oxford OX1 3PH, UK ABSTRACT The vapor deposition of epitaxial GaAs and (Ga,Mn)As thin films during far-temperature growth of Ga0.94Mn0.06As and the Mn clustering trends in as-grown films. INTRODUCTION GaAs is widely used

  4. Science and Parliament Research Council secondments -an

    E-Print Network [OSTI]

    Mather, Tamsin A.

    Mather University of Oxford tamsinm@earth.ox.ac.uk #12;Talk outline · What parliament does · Science 6 4 1 4 Education, Science &Art 1 1 1 0 0 0 1 0 No Energy 5 7 7 5 No No No No No Environment 7 5 8 2 8 6 6 Northern Ireland Audit Office No No No No 24 16 10 12 5 European Documents No No No No 27 14

  5. Atmos. Chem. Phys., 8, 22552265, 2008 www.atmos-chem-phys.net/8/2255/2008/

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    ) for MVK­O3, 68.9±9.7% HMHP, 13.3±5.8% HCHO and 75.4±7.9% MG. A yield of 24.2±3.6% pyruvic acid has been contribute a considerable amount of aerosol through aqueous-phase acid-catalyzed ox- idation with hydrogen-phase ozonolysis of MAC and MVK can lead to substantial aerosol forma- tion from the aqueous-phase acid

  6. FRP FOR LARGE SPAN HIGHWAY BRIDGE IN CANADA Emile Shehata, Amr Abdelrahman, Gamil Tadros, and Sami Rizkalla

    E-Print Network [OSTI]

    as shown in Fig. 1. 33.05 m 2.1 Materials FRP (Leadline) 33.0 Plan FRP (CFCC) 33.0 ~FRP 8 girders @ 1.8 m. Carbon fibre composite cables (CFCC) ofl5.2 mm diameter, produced by Tokyo Rope, Japan, were used for shear using 15.2 mm diameter CFCC stirrups and lOx 5 mm Leadline bars of rectangular cross section

  7. Comparative study of manual and machine methods of accounting for sales, billing, and accounts receivable

    E-Print Network [OSTI]

    Wood, Robert P

    1950-01-01T23:59:59.000Z

    ~ o i e e ~ ~ ~ o ~ P ~ ~ ~ 0 ~ QQ IeIST OX" IL!eUS'ZBATIO!!S Illustration Page 1, Underwood Sundstrand and Dalton Keyboaxds, . ~ 25 2 ~ !eonroe with plexible Keyboard, ~ e ~ ~ ~ e ~ ~ 26 5, National Class 5000 with i lexible Keyboarde ~ . 27 4..., Surrou hs Style 21 with Iatchdown Keyboard, , ~ 26 5 ~ Surrou?hs Sensimatic with !"lexible Keyboard e ~ 29 6 ~ Homin?ton Vodel 605 with 'l~ypewriter Charactex' istics ~ ~ ~ ~ ~ ~ e ~ ~ ~ ~ ~ e ~ ~ ~ ~ ~ e ~ ~ 51 7 ~ !!ational Class 5000...

  8. The effect of selection on ventral feather tract and inferior space width in broiler type chickens

    E-Print Network [OSTI]

    Kiker, John Thomas

    1970-01-01T23:59:59.000Z

    used in the selection index were chosen by characterizing and correlating the feathered and nonfeathered regions of the breast with other phenotypic characteristics of economic im- portance and then reducing the number of traits to those most highly... of sez, 'bx'eed ox conformation. An early covering of feathers over the keel bone appeared to serve as protec- tion, thereby reducing the incidence of breast blisters. Tunk and Savage (1956) reported similar results when they plucked feathers from...

  9. Single domain strain relaxed PrScO3 template on miscut substrates C. M. Folkman, R. R. Das, and C. B. Eoma

    E-Print Network [OSTI]

    Eom, Chang Beom

    , PrScO3, on miscut 001 SrTiO3 and 001 LaAlO3 0.3­ Sr2AlTaO3 0.7 substrates by pulsed laser deposition the performance of ox- ide devices.1­3 The lattice parameters of REScO3 substrates can be tuned with the selection of high melting temperatures.3 These unavailable REScO3's allow us to study transition temperature versus

  10. CV DJ Stacchiola Full List of Journal Publications

    E-Print Network [OSTI]

    Homes, Christopher C.

    -Gas Shift Reaction and Ethanol Steam Reforming: Fundamental Studies with Well-Defined Model Catalysts" SD-12298...........................................................................................................(2013) 91 - "Steam Reforming of Ethanol on Ni/CeO2: Reaction Pathway and Interaction between Ni and the CeO2-12025 .....................................................................................(2013) 89 - "Ethanol Photo Reaction on RuOx/Ru Modified TiO2(110)" S Kundu, AB Vidal, A Nadeem, SD

  11. Facile Conjugation of Biomolecules onto Surfaces via Mussel Adhesive Protein Inspired Coatings

    E-Print Network [OSTI]

    and inorganic substrates were first modified by polydopamine: copper, titanium oxide (TiOx), polycarbonate (PC yielded virtually indistinguishable XPS spectra, with nitrogen-to-carbon (N/C) ratios of 0V for Ti2p3/2 and 464eV for Ti2p1/2), along with emergence of a nitrogen peak (N1s, 399.5 eV) on organic

  12. Bubble formation within filaments of melt-processed Bi2212 wires and its strongly negative effect on the critical current density

    E-Print Network [OSTI]

    the Jc of Bi2212 round wires. 1. Introduction The high-temperature superconductor (HTS) Bi2Sr2CaCu2Ox (BiBubble formation within filaments of melt-processed Bi2212 wires and its strongly negative effect.1088/0953-2048/24/7/075009 Bubble formation within filaments of melt-processed Bi2212 wires and its strongly negative effect

  13. WellcomeHistoryISSUE 40 SPRING 2009 Feature article 2

    E-Print Network [OSTI]

    Rambaut, Andrew

    WellcomeHistoryISSUE 40 SPRING 2009 Feature article 2 Child mortality in Uruguay oxFord uNit 5 Wor and the people reSearcH reSourceS 18 Broadmoor Hospital archive booK revieWS 20 caleNdar 24 #12;2 Manchester unit: Radcliffe Square in Oxford. Line engraving after James Gibbs. See pages 5­15 on the Oxford Wellcome Unit

  14. Cotton Root-rot.

    E-Print Network [OSTI]

    Pammel, L. H. (Louis Herman)

    1889-01-01T23:59:59.000Z

    to repair the wound, as it does not allow the air to come in contact with the wound. Hartig (Zersetzungserscheinungen des Holzes, Berlin, 1878, p. 69) has shown this to be the case with the exudation of liqnid resin in Conifers. 8 Texas Agricudtuvad... ~Wedicaginis, 2 3 and other fungi affect- OHartig Wichtige Krankheiten der Waldbreume, Berlin, 18'74 ; Zersetzungserscheinungen des Holzes. Berlin. 1878. Sachs vbrlesunken ueber Pflanzen-Physiologic, Eng. translation, H. Marshall Ward, Ox- ford, 1887, p...

  15. Bodleian Libraries'Admissions Office Personal Details

    E-Print Network [OSTI]

    Oxford, University of

    and held securely in the University's shared Development and Alumni Relations System (DARS): DARS provides.alumni.ox.ac.uk/data_protection for information on the way in which your personal data are held and used in DARS. Some sensitive personal data may be held in DARS. If, at any time, you have any queries about the use of your personal data in DARS or wish

  16. SCRS/2004/062 Col. Vol. Sci. Pap. ICCAT, 57(2): 142-161 (2005) BIGEYE TUNA (THUNNUS OBESUS) BEHAVIOR

    E-Print Network [OSTI]

    Hawai'i at Manoa, University of

    , and oxygen concentrations less than 1.5 ml O2 l-1 . In contrast, skipjack tuna (Katsuwonus pelamis'oxygène inférieures à 1,5 ml O2 l-1 . En revanche, le listao (Katsuwonus pelamis) et l'albacore (T. albacares oxígeno inferiores a 1,5 ml O2 l-1 . Por el contrario, el listado (Katsuwonus pelamis) y el rabil (T

  17. Nutrient digestion in various segments of the gastrointestinal tract of ponies fed two, three or four meals per day 

    E-Print Network [OSTI]

    Brown, Kimberly Massey

    1987-01-01T23:59:59.000Z

    and postileal absorption of magnesium was 28. 5, 28. 8 and O. OX, respectively. ACKNQWLEDGEMENTS The author will always be grateful for having had the opportunity to work under the guidance of Dr. G. D. Potter, committee chairman. His expertise in equine... Absorption of Phosphorus Apparent Postileal Absorption of Phosphorus Apparent Absorption of Magnesium Apparent Total Tract Absorption of Magnesium Apparent Prececal Absorption of Magnesium Apparent Postileal Absorption of Magnesium 43 44 45 45 47...

  18. ON THE PROBLEM OF UNIQUENESS FOR THE MAXIMUM STIRLING NUMBER(S) OF THE SECOND KIND

    E-Print Network [OSTI]

    Pomerance, Carl

    ON THE PROBLEM OF UNIQUENESS FOR THE MAXIMUM STIRLING NUMBER(S) OF THE SECOND KIND E. Rodney Say that an integer n is exceptional if the maximum Stirling number of the second kind S(n, k) occurs or equal to x is O(x3/5+ ), for any > 0. 1. Introduction Let S(n, k) be the Stirling number of the second

  19. Synthesis of nanoporous activated iridium oxide films by anodized aluminum oxide templated atomic layer deposition.

    SciTech Connect (OSTI)

    Comstock, D. J.; Christensen, S. T.; Elam, J. W.; Pellin, M. J.; Hersam, M. C. (Energy Systems); ( MSD); (Northwestern Univ.)

    2010-08-01T23:59:59.000Z

    Iridium oxide (IrOx) has been widely studied due to its applications in electrochromic devices, pH sensing, and neural stimulation. Previous work has demonstrated that both Ir and IrOx films with porous morphologies prepared by sputtering exhibit significantly enhanced charge storage capacities. However, sputtering provides only limited control over film porosity. In this work, we demonstrate an alternative scheme for synthesizing nanoporous Ir and activated IrOx films (AIROFs). This scheme utilizes atomic layer deposition to deposit a thin conformal Ir film within a nanoporous anodized aluminum oxide template. The Ir film is then activated by potential cycling in 0.1 M H{sub 2}SO{sub 4} to form a nanoporous AIROF. The morphologies and electrochemical properties of the films are characterized by scanning electron microscopy and cyclic voltammetry, respectively. The resulting nanoporous AIROFs exhibit a nanoporous morphology and enhanced cathodal charge storage capacities as large as 311 mC/cm{sup 2}.

  20. Transition metal complexes of oxazolinylboranes and cyclopentadienyl-bis(oxazolinyl)borates: Catalysts for asymmetric olefin hydroamination and acceptorless alcohol decarbonylation

    SciTech Connect (OSTI)

    Manna, Kuntal [Ames Laboratory

    2012-12-17T23:59:59.000Z

    The research presented and discussed in this dissertation involves the synthesis of transition metal complexes of oxazolinylboranes and cyclopentadienyl-bis(oxazolinyl)borates, and their application in catalytic enantioselective olefin hydroamination and acceptorless alcohol decarbonylation. Neutral oxazolinylboranes are excellent synthetic intermediates for preparing new borate ligands and also developing organometallic complexes. Achiral and optically active bis(oxazolinyl)phenylboranes are synthesized by reaction of 2-lithio-2-oxazolide and 0.50 equiv of dichlorophenylborane. These bis(oxazolinyl)phenylboranes are oligomeric species in solid state resulting from the coordination of an oxazoline to the boron center of another borane monomer. The treatment of chiral bis(oxazolinyl)phenylboranes with sodium cyclopentadienide provide optically active cyclopentadienyl-bis(oxazolinyl)borates H[PhB(C{sub 5}H{sub 5})(Ox{sup R}){sub 2}] [Ox{sup R} = Ox{sup 4S-iPr,Me2}, Ox{sup 4R-iPr,Me2}, Ox{sup 4S-tBu]}. These optically active proligands react with an equivalent of M(NMe{sub 2}){sub 4} (M = Ti, Zr, Hf) to afford corresponding cyclopentadienyl-bis(oxazolinyl)borato group 4 complexes {PhB(C{sub 5}H{sub 4})(Ox{sup R}){sub 2}}M(NMe{sub 2}){sub 2} in high yields. These group 4 compounds catalyze cyclization of aminoalkenes at room temperature or below, providing pyrrolidine, piperidine, and azepane with enantiomeric excesses up to 99%. Our mechanistic investigations suggest a non-insertive mechanism involving concerted C?N/C?H bond formation in the turnover limiting step of the catalytic cycle. Among cyclopentadienyl-bis(oxazolinyl)borato group 4 catalysts, the zirconium complex {PhB(C{sub 5}H{sub 4})(Ox{sup 4S-iPr,Me2}){sub 2}}Zr(NMe{sub 2}){sub 2} ({S-2}Zr(NMe{sub 2}){sub 2}) displays highest activity and enantioselectivity. Interestingly, {S-2}Zr(NMe{sub 2}){sub 2} also desymmetrizes olefin moieties of achiral non-conjugated aminodienes and aminodiynes during cyclization. The cyclization of aminodienes catalyzed by {S-2}Zr(NMe{sub 2}){sub 2} affords diastereomeric mixture of cis and trans cylic amines with high diasteromeric ratios and excellent enantiomeric excesses. Similarly, the desymmetrization of alkyne moieties in {S-2}Zr(NMe{sub 2}){sub 2}-catalyzed cyclization of aminodiynes provides corresponding cyclic imines bearing quaternary stereocenters with enantiomeric excesses up to 93%. These stereoselective desymmetrization reactions are significantly affected by concentration of the substrate, temperature, and the presence of a noncyclizable primary amine. In addition, both the diastereomeric ratios and enantiomeric excesses of the products are markedly enhanced by N-deuteration of the substrates. Notably, the cationic zirconium-monoamide complex [{S-2}Zr(NMe{sub 2})][B(C{sub 6}F{sub 5}){sub 4}] obtained from neutral {S-2}Zr(NMe{sub 2}){sub 2} cyclizes primary aminopentenes providing pyrrolidines with S-configuration; whereas {S-2}Zr(NMe{sub 2}){sub 2} provides R-configured pyrrolidines. The yttrium complex {S-2}YCH{sub 2}SiMe{sub 3} also affords S-configured pyrrolidines by cyclization of aminopentenes, however the enantiomeric excesses of products are low. An alternative optically active yttrium complex {PhB(C{sub 5}H{sub 4})(Ox{sup 4S-tBu}){sub 2}}YCH{sub 2}SiMe{sub 3} ({S-3}YCH{sub 2}SiMe{sub 3}) is synthesized, which displays highly enantioselective in the cyclization of aminoalkenes at room temperature affording S-configured cyclic amines with enantiomeric excesses up to 96%. A noninsertive mechanism involving a six-membered transition state by a concerted C?N bond formation and N?H bond cleavage is proposed for {S-3}YCH{sub 2}SiMe{sub 3} system based on the kinetic, spectroscopic, and stereochemical features. In the end, a series of bis- and tris(oxazolinyl)borato iridium and rhodium complexes are synthesized with bis(oxazolinyl)phenylborane [PhB(Ox{sup Me2}){sub 2}]{sub n}, tris(oxazolinyl)borane [B(Ox{sup Me2}){sub 3}]n, and tris(4,4-dimethyl-2-oxazolinyl)phenylborate [To{sup M}]{sup ?}. All these new an

  1. The geology of the Cross Mountain anticline, Moffat County, Colorado 

    E-Print Network [OSTI]

    Vinson, George Larry

    1955-01-01T23:59:59.000Z

    ~ Parka a south plungtug epaoitual trough area, The mountain ie referral te as Junotion Nountiin in the ear3g e~~ however, it M now knoun as Cross Nountain. Xn the ~ts vicinity Couglas Nountain lies gust eeet oi' M3LP Park aug is a part of the los... Universe@' ef So. 3jiger rsyo'rta are haauii-'to sids4? the sxess psouneain Split emi its' flenhs, -The-'see@on @on the, yse jgsn to loess" QppeN Qnstaeeons (gsneos shale) & . ox' apppoxURate 6~CO feet, has -been. stel$. 8Ii in detail 'ghe post Madison...

  2. Polarisation independent phase modulation using a blue phase liquid crystal over silicon device

    E-Print Network [OSTI]

    Hyman, Rachel M.; Lorenz, Alexander; Morris, Stephen M.; Wilkinson, Timothy D.

    2014-10-10T23:59:59.000Z

    , Department of Engineering, University of Cambridge, 9 JJ Thomson Avenue, Cambridge, CB3 0FA, UK 2Department of Engineering Science University of Oxford, Parks Road, Oxford, OX1 3PJ, UK *Corresponding author: rmh61@cam.ac.uk Liquid crystal over silicon... together using 6 ?m spacer bead doped glue. The cell thickness was then measured using the Fabry-Perot interference technique with a spectrometer connected to the microscope (Ocean Optics USB 2000). The cell gap thickness was measured to be 6.4 ± 0.1 ?m...

  3. Analysis of insertion mutants in the Escherichia coli fertility factor F transfer genes: traY, traQ, trbA, trbB and artA

    E-Print Network [OSTI]

    Kathir, Pushpa Rani

    1989-01-01T23:59:59.000Z

    and donor strains carrying both a tra::kan insertion construct and either Flee or pOX38 43 6 Qualitative mating and bacteriophage sensitivity S R + R tests of Tc Km Lac Nal XK1200 transconjugants deri~ed from Flac/pKI238 donors 45 7 Qualitative mating... and bacteriophage sensitivity S R + R tests of Tc Km Lac Nal XK1200 transconjugants derived from Flac/pKI239 donors 47 8 Southern hybridization pattern of Flac and Fl N323 8-5 DNA p t*d ' 8 pK118 1 NNA 9 Quantitative mating and complementation tests Fl t tt238...

  4. Relationships between radar precipitation-echo patterns associated with midwestern tornadoes and their corresponding synoptic meteorological situations

    E-Print Network [OSTI]

    Packnett, Don Stevenson

    1959-01-01T23:59:59.000Z

    ~ 1 ~ 01 t ~ ~ 1 R3 11 ~ Stoee of 17 lee 1959001 ~ ~ ~ ~ 01 ~ ~ ~ ~ ~ ~ ~ ~ ~ 120 Stme of 1$ RewAer 195$0 ~ ~ ~ ~ 0 ~ ~ ~ ~ ~ ~ 1 ~ 13 ' Std@ Of 29 Std 19960 ~ ~ 1st ~ ~ ~ ~ ~ ~ ~ 1 ~ ~ ~ ~ ~ 140 84sox4 ooINe@log ~ Xse80... Rohoee ~4 in e Roxe ox Lace Coheeive 14neo ~ ~ ~ ~ ~ o ~ o ~ ~ ~ 1, Stoxaa of 2~3 Ayxil 1956? ~ ~ ~ ~ ~ ~ o ~ o ~ ~ ~ ~ ~ ~ Lo ~ ~ ~ ~ ~ o ~ ~ ~ ~ ~ ~ o ~ ~ ~ ~ ~ ~ o ~ ~ ~ ~ ~ ao ~ ~ TYPO 1I? Ti4eeRxee4 Sheet Rohosea ~ ~ ~ ~ oa ~ ~ ~ 1 ~ Stoxn of 17...

  5. Book Reviews

    E-Print Network [OSTI]

    Sinha, Nirmal Chandra

    and in reporting his travels he weilded his pen like a man of letters of the late Victorian era. "He took the keenest interest in the mysteries of Tibet and appreciated to the full the wonderful scenery which to my mind was infinitely the most fascinating of all... English cousin. Strong in the wing, zigzagging unballasted in ten-foot swoops of pure colour, the butterflies lace the sunlight. And underfoot in the deep soft white dust the kidney footmark of the brown ox, or the kukri-like print of the high in...

  6. Guest Author-Professor Shigeyoshi Nagataki

    E-Print Network [OSTI]

    CFCC In Japan n.. IonoeSi preSlrISSiod concrete bndge "S"lSI Carbon fiber CompoSite C,ble (CfCCl1dons used wer. CFCC. and !hi gird.....Cl1011 wal accomphshed by till Clmile'o'\\!f "8C\\lOn methodIt IYfNI 01 ubi,s. $Ox CFCC stnonds. wrtIt diarne\\1lr$ 04 12.5 nvn e&eh. we" ~ped fIIO one ndi-cal*. 80Ih

  7. Sorghum head silage, with and without haylage, for fattening steers

    E-Print Network [OSTI]

    Stilwell, Daniel Emerson

    1963-01-01T23:59:59.000Z

    steers in all treatment groups during the first few days of the trial. A ma)ority of the cases occurred in the group fed soxghum heads and 2 lb. CSM and most of these cases wex'e during the first three days of the experiment when s dry ground mixture..., and 2 lb. CSM (285 lb. ). The steers fed heads, haylage, and 1 lb. CSM had the lowest total gain (254 lb. ), but this was not significantly diffexent from the group fed heads, haylage, and 2 lb. of CSM (264 lb. ), ox the group fed grain, haylage...

  8. Ultra high vacuum broad band high power microwave window

    DOE Patents [OSTI]

    Nguyen-Tuong, Viet (Seaford, VA); Dylla, III, Henry Frederick (Yorktown, VA)

    1997-01-01T23:59:59.000Z

    An improved high vacuum microwave window has been developed that utilizes high density polyethylene coated on two sides with SiOx, SiNx, or a combination of the two. The resultant low dielectric and low loss tangent window creates a low outgassing, low permeation seal through which broad band, high power microwave energy may be passed. No matching device is necessary and the sealing technique is simple. The features of the window are broad band transmission, ultra-high vacuum compatibility with a simple sealing technique, low voltage standing wave ratio, high power transmission and low cost.

  9. Using Hybrid Vigor to Improve Production Efficiency in Beef Cattle.

    E-Print Network [OSTI]

    Maddox, L. A. Jr.

    1972-01-01T23:59:59.000Z

    cattle :e Maddox, 1970, Texas As we try to take an industry-wide view of produc- tion efficiency, we need additional information on the effects of cow size on rate and economy of gain. Angus anc Hereford weaning weights increased by an average of 6... The British beef breeds of great economic importance in this country are the Angus, Hereford and Shorthorn. History has not recorded the origin of cattle that were developed into these breeds. A small shorthorned ox was found in England by Roman invaders...

  10. Trends in prices of purebred Hereford beef cattle in Texas

    E-Print Network [OSTI]

    Williams, Harry Lee

    1952-01-01T23:59:59.000Z

    TRENDS IN PRICES OF POREBRE ) HEREFORD BEEF CATTLE IN TEXAS A Thesis By HARRY L. WILLIAMS Approved as to style and oontent by C a rrsan o o tes Head o hutment ox Stu ent v sos' %fay 1952 THENDS IN F&!ICES OF F ~;!'BHFi. HEBE""ORB B 'g CA... ds sold at Texas auotions by number, sex and average prioe, 1915-50. S. Purebred Herefords sold at Texas auotions by number& sex and avezage pries by quarters, 1942-50 ' PXG:CHES 1 ~ Reserve ohampion bull and reserve champion female~ 1949, So...

  11. SUPPORTING INFORMATION Growth of Manganese Oxide Nanostructures Alters the Layout of

    E-Print Network [OSTI]

    0 0 0.8 1.5 2.6 log fadh(MnOx) (pN) 2.22 2.15 2.41 2.84 2.67 2.46 2.44 Source Degrees of Freedom Sum and McCabe, W. H. Freeman and Company, New York, 1998. R2 = 3052/3184 = 0.96 and adjusted R2 = 0. Freeman and Company, New York, 1998 * Large probabilities indicate that there is no linear relation

  12. Perpendicular local magnetization under voltage control in Ni films on ferroelectric BaTiO3 substrates

    E-Print Network [OSTI]

    Ghidini, Massimo; Maccherozzi, Francesco; Moya, Xavier; Phillips, Lee C.; Yan, Wenjing; Soussi, Jordane; Métallier, Nicolas; Vickers, Mary E.; Steinke, Nina -J.; Mansell, Rhodri; Barnes, Crispin H. W.; Dhesi, Sarnjeet S.; Mathur, Neil D.

    2015-01-12T23:59:59.000Z

    of Parma viale G. P. Usberti 7/A , Parma 43124 , Italy Dr. F. Maccherozzi, Prof. S. S. Dhesi Diamond Light Source Chilton, Didcot , Oxfordshire OX11 0DE , UK Dr. N.-J. Steinke, Dr. R. Mansell, Prof. C. H. W. Barnes Cavendish Laboratory... , minimizing stray-fi eld energy. The IP component of magnetization lies perpendicular to this IP direction, along the same direction in adjacent stripes. In polycrystalline fi lms of negative-magnetostriction Ni, which show stripe domains above a critical...

  13. Edith Wharton's attitude toward divorce, as revealed in some major novels

    E-Print Network [OSTI]

    Batts, Maxine Garrett

    1965-01-01T23:59:59.000Z

    )ect the, person wbo hsd helped her attain it a snd to begin ~ subtle attack on tbe nett ~ Hen vere bsr victims, snd sbo walked over choir wounded souls, traveling from ono marital, bed to another by wsy of divorce and snnulamnt snd, farcically... ox axoxal. Sot Undine xxas incapable of feeXL?g love for anyone except hcr. -elf. Sbo was @ vicious fsnslo xxho fed o? the Xovo and Lxxesion Of others in oxder to achieve hcr asibitions. There wse never sny indication tbst she bad eny love for her...

  14. Moving mesh partial differential equations (MMPDEs) based upon the equidistribution principle

    E-Print Network [OSTI]

    Huang, Weizhang; Ren, Yuhe; Russell, Robert D.

    1994-06-01T23:59:59.000Z

    , ft Ot of fixed, Of Of Of Ox dt Ot fixed= Oz tfixed Ot fixed + fixed for an arbitrary function f f(z, t) f(z(, t), t). Suppose that a uniform mesh is given on the computational domain by (3) i -, 0, 1,...,n, where n is a certain positive integer...) satisfies the QSEP is completely determined from the initial mesh by this relationship. 3.2. (MMPDE2). The analysis for (MMPDE2) is similar to that of (MMPDE1). From a linear stability analysis, we have (49) 5x(, t) e-5 M(x(, 0), 0) 6x(, 0).M(x(,t),t) D ow...

  15. Analysis of radio tracking data obtained by triangulation with special reference to ecology of collared peccary herds in South Texas, U.S.A.

    E-Print Network [OSTI]

    Ettestad, Paul Jonas

    1984-01-01T23:59:59.000Z

    within 30 minutes of each other were considered simultaneous. In effect, the assumptions being established are that locations within 30 minutes of each other are dependent while successive locations on an individual which are taken every 60 to 90... if the sampling interval was greater than 90 minutes. Collared peccaries travelled in herds and had a well-defined home range. Herds spent more time ()902) in dense chaparral habitat than in open mesquite habitat ((lOX). Herds had areas of intensive use which...

  16. Nepali Aawaz Volume 1, Issue 19, 7 December 2006

    E-Print Network [OSTI]

    Shrestha, Kashish Das

    O{–lnDa"x¿nfO{ ;fy lng' k/]sf] lyof] . hftLo :jfoQtf / cfTdlg0f{osf] clwsf/ cyf{t\\ 5'§} ls/fFt /fHosf] ;kgf b]vfP/ dfcf]jfbLn] vDa"jfg /fli6«o df]rf{ / lnDa"jfg /fli6«o d'lQm df]rf{ xft lng ;kmn eP . t/ clxn] oxL If]qdf /fO{ / lnDa' :jfoQtfsf nflu lsrnf] v8f e...

  17. Ultra high vacuum broad band high power microwave window

    DOE Patents [OSTI]

    Nguyen-Tuong, V.; Dylla, H.F. III

    1997-11-04T23:59:59.000Z

    An improved high vacuum microwave window has been developed that utilizes high density polyethylene coated on two sides with SiOx, SiNx, or a combination of the two. The resultant low dielectric and low loss tangent window creates a low outgassing, low permeation seal through which broad band, high power microwave energy may be passed. No matching device is necessary and the sealing technique is simple. The features of the window are broad band transmission, ultra-high vacuum compatibility with a simple sealing technique, low voltage standing wave ratio, high power transmission and low cost. 5 figs.

  18. Evaluation of ground-water quality impacts of lignite waste disposal at a Texas lignite mine

    E-Print Network [OSTI]

    Green, Deborah Joan

    1984-01-01T23:59:59.000Z

    to be responsible for the high degree of selen1um attenuation 1s adsorption of the element by amorphous iron and alum1num ox1des and organic matter abundant in the clay soils of the study area. ACKNOWLEDGEMENTS I would like to thank the members of my thes1s... at the study site for a 1984, and c. comparison lines cations in the sludge ls anions in the sludge ls. concentration (mg/I) January 1983, b. June of contour map center 47 . 48 51 Figure 14 Log-log adsorption relat1on for preliminary evaluation...

  19. Public sentiment in the United States towards the tariff, 1816-1828

    E-Print Network [OSTI]

    Matthews, John Francis

    1968-01-01T23:59:59.000Z

    e and conten0 by: The purpose of this papex 1s Co survey public senti- ment in the United Sites on the ??riff from l816 co 1828 on a broader and wider geogxaphical basis than has been done previously, Post wox'ks on the tariff concentrate upon... the history of the passage of the tariff bills through Congress ox upon public sentiment in one state or section& Consequently, a study of the sentiment of the agricultural, the m?nufacturing, and the comercial regions of the country could lead to a better...

  20. Effectiveness and relative cost of chemical treatments for the control of post oak and blackjack oak

    E-Print Network [OSTI]

    Suffel, Paul H

    1952-01-01T23:59:59.000Z

    that foliage treatment of sprout growth less than one year of age was ineffective. In evaluating liquids as carriers for hormone type herbicides, Waldrip (1$) observed that ~ster and oil/eater emulsions were less satisfactory than kerosene ox' diesel oil... T herbicides in Tables I ~ I I, I I I x and IV are of the isopxopyl ester type. Foliage spray treatments were made with the estexs of 2&~ and 2~4, 5-T in carriers of kerosene& Soluble Oil D~ and diesel oil. The spxay mixtures were applied to the entire...

  1. Female characters in Thomas Wolfe's four major novels: Look Homeward, Angel; Of Time and the River; The Web and the Rock; and You Can't Go Home Again.

    E-Print Network [OSTI]

    Sheffield, Jewell Frieda

    1968-01-01T23:59:59.000Z

    ) ~ Her visibs back to South Caxolina afford the boardinghouse amusement hearing her enthusiastic dsscriytions of hsx rsosytion and all the yartiss given in her honox. Bessie Gant, the wife of a neyhsw of W, 0 , ylays an imyoxtant xole in the Sant... yatients are concerned, Shen the Cant family inguiroc about 33en's condition, she says1 "If I can. l eey his damn family out ox the room, he may have some c~~ce of getting . well" (lid. , y. 545). Bessie is a conscientious nurse and. ta33m as a natter...

  2. Causes of property tax delinquency in Grayson County, Texas

    E-Print Network [OSTI]

    Cunningham, James Morgan

    1947-01-01T23:59:59.000Z

    $40ege for esoh easer Xn oonexaat wieh Che lax'ge Sised delinquonCO& sevenCy oases wsro less Chan CbirCy sores in sise with an average CSX Of $8184e The pQX'eels from Sere CO 'Cori aoree in Sissy with awerage delinquenoy amounCing to $4~95& numbex... dolinquont in Choir Cax payments~ Othox' praporty owners, in such times of stross, will allow taxes ta go unpaid rathez' Chan Ca saox'ifioo ox' "cut oornzc's in oxdex Chat Csx payment can be made~ Xf' something must wait ax go unpaid& it seams...

  3. Engineering development of a bubble tray structure 

    E-Print Network [OSTI]

    Glitsch, Hans C

    1954-01-01T23:59:59.000Z

    pass thxough agitable openings 3. n the bubble trayS and be caused to bubble through the liquid cax'ried on the trays. This is usually Bccomp3. :lshed bv providing a sex ies of vapor chimneys on each bu'bble tray, with each vapor chimney being... esistant covex- ing could be formed to fit the carbon steel stxuctural shape, and attached to the carbon steel structural shape by suitable means such as arc ox spot welding. Structural channel shapes were considex'ed as they cou'id be assembled...

  4. Las Cruces MPO 2040 Metropolitan Transportation Plan 

    E-Print Network [OSTI]

    Las Cruces Metropolitan Planning Organization

    2010-06-09T23:59:59.000Z

    circumstance, wes not determined, LITERAT %E CITS' Esm, Katherine, Plant Anatosy, John k'iley and Sons& p 115~ 1953. 2. Johansen~ D. A. , Plsnt Eicrotechnique~ HcOx'aw Hill~ p 87 ~ 19h0. 'Oosssrd, A. C?Rooting of pecan stea tissue by layering~ Aaerioan..., Page 24 TJL'ELK XQ Nuaher of roots per tree in 'Ireataents 1 and 2 on the two dates of inspections Ju+ la 1957~ and Narch 9a 1958 Date of Inspection ". reataent 1 Treataent 2 July la 1957 10 Naroh 9a 1958 Averais 2d 12 ho m ...

  5. Drinking Water Problems: Perchlorate (Spanish)

    E-Print Network [OSTI]

    Dozier, Monty; Melton, Rebecca; Hare, Michael; Porter, Dana; Lesikar, Bruce J.

    2006-02-21T23:59:59.000Z

    y perju- dicar la calidad del agua tratada. El agua que sale de las unidades de tratamiento debe de ser examinada regularmente para verificar el funcionamiento apropiado del sistema. 4 Fuentes Burge, S., and Halde, R. 1999. Nitrate and Perchlorate...E l perclorato es un compuesto qu?mico que se compone de un ?tomo de cloro y cuatro ?to- mos de ox?geno. El perclorato que se encuentra en sistemas de agua puede ocurrir natural- mente o ser el producto de la actividad humana. El perclorato se mueve...

  6. On-Site Wastewater Treatment Systems: Aerobic Treatment Unit (Spanish)

    E-Print Network [OSTI]

    Lesikar, Bruce J.; Enciso, Juan

    2000-08-29T23:59:59.000Z

    sea de alta calidad. En el sistema, las aguas negras primero entran al tanque de pretratamiento o a la trampa de basura, que saca los objetos pl?sticos y otros s?lidos que flotan o se asientan. Despu?s, entra a un tanque de aireaci?n donde el ox... Sistemas individuales para el tratamiento de aguas negras Fosa de basura de un compartimiento Cloronizador Unidad de tratamiento aer?bico Rociadores Tanque bomba Unidad de tratamiento aer?bico Bruce Lesikar y Juan Enciso Promotores Especialistas de...

  7. Drinking Water Problems: Iron and Manganese (Spanish)

    E-Print Network [OSTI]

    Dozier, Monty; McFarland, Mark L.

    2004-02-20T23:59:59.000Z

    . Estas bacterias se alimentan de los minerales que hay en el agua. No causan problemas de salud, pero s? forman una baba rojiza-caf? (hierro) o caf?- negra (manganeso) en los tanques de los inodoros y pueden tapar los sistemas de agua. ?C?mo entran el.... Las part?culas se forman debido a que el ox?geno en el sistema de plomer?a est? oxidando y precipitando el hierro y el manganeso. Si el agua est? clara cuando sale del grifo, pero las part?culas se forman y se acumulan despu?s de que el agua ha estado...

  8. A study of the use of feed supplements for prevention of experimental bitterweed (Hymenoxys odorata) poisoning in sheep

    E-Print Network [OSTI]

    Bridges, Gary Wayne

    1977-01-01T23:59:59.000Z

    in reducing the toxicity of bitterv!eed (~H&!en~ox s odorata). In each of four experiments, sheep were divided into four groups of two and were dosed with bitterweed equal in weight to 0. 1/, 0. 2/, 0. 4'i and 0. 8'/ of their body weight. The median lethal... as above and the LD50 was estimated to be 4. 0 + 0. 3 gm bitterweed per kilogrtln! of body weight. Sodium sulfate, administered to the lambs at a rate of 340 mg per kilogram of body v!eight prior to dosing with bitterv!eed, also affected the toxicity...

  9. Table SI-1. kOH, a, F, and SOA yield values for VOCs. Not all VOCs are listed. Yields are for Mo = 5 g/m3. "(E)" indicates that the values are estimated.

    E-Print Network [OSTI]

    Meskhidze, Nicholas

    ) a F Y (%) CO 0.24 1.0 1 0 methane 0.0063 2.0 1 0 ethane 0.3 2.0 0.98 0 propane 1.1 2.0 0.96 0 n-butane,2,3,4 tetramethylbenzene (M) 3-methyl 2-butanone (T) propanal (T) methylethylketone (T) #12;Table SI-2. P(Ox) pptv/s % P(SOA) 10-6 µg m-3 /s % CO 3500 0.8 8.0 0 0 ethane 27.3 0.02 0.1 0 0 propane 205 0.44 4.1 0 0

  10. Humility, charity, and poverty in Fielding's The Champion: A key to his clergymen.

    E-Print Network [OSTI]

    Beyer, Betty McFarren

    1968-01-01T23:59:59.000Z

    to his reputation. Bot until. the twentieth century did Cross, Work, Shsrburn, Ssttestin, and others repLace the immoraLity of PieMingg the dissi- pated rahe, with the identification of his fuudamsntsL moraLityT his ecsLtation cf "good natureg and hia... pans'La x, thats palpxta sns xn tha ramsrLps af hia clsrgymn Llho sithax aphzixv. Or discuss tha xtaLL LxLown anthLSSLiaac Ccorixs 'LQ&itsfislt'3 ox' fraatbinhe~ Maalston and Talsn8. . Pisidinpp bsliavsd that tha gsn- ereL neglect af religion...

  11. A study of the use of feed supplements for prevention of experimental bitterweed (Hymenoxys odorata) poisoning in sheep 

    E-Print Network [OSTI]

    Bridges, Gary Wayne

    1977-01-01T23:59:59.000Z

    in reducing the toxicity of bitterv!eed (~H&!en~ox s odorata). In each of four experiments, sheep were divided into four groups of two and were dosed with bitterweed equal in weight to 0. 1/, 0. 2/, 0. 4'i and 0. 8'/ of their body weight. The median lethal... as above and the LD50 was estimated to be 4. 0 + 0. 3 gm bitterweed per kilogrtln! of body weight. Sodium sulfate, administered to the lambs at a rate of 340 mg per kilogram of body v!eight prior to dosing with bitterv!eed, also affected the toxicity...

  12. A frequency referenced digitally self-tuned approach to monolithic filter design

    E-Print Network [OSTI]

    Fincher, Jeffrey Louis

    1984-01-01T23:59:59.000Z

    frequency war ping (preferably 8 to 10 times Hp and H& are two nonoverl appi ng cl ocks of f requency f c Hp A C~ I I R=? 1 Cf Switched Capacitor Resistor Equivalent Resistance ~si I: lh I it hed t Recit Re iste a d Its Eq I le t R si tahe greater.... These values were used in the calculations involved in sizing the NMOS FET active loads used in the filter. K' = uC = 21. 6 uA/V y=. 45V VT = -26 odep VT = . 72 V oenh . 56 V u = Mobility of channel C = Capacitance per unit area of gate ox y = Bulk...

  13. Final Report on CRADA ORNL05-0703

    SciTech Connect (OSTI)

    Christen, D.K.

    2010-04-27T23:59:59.000Z

    The work of this CRADA has been focused on the development of Rolling-Assisted Biaxially Textured Substrate (RABiTS)-based high-temperature superconducting (HTS) coated conductor technology that is in the pre-commercial development stage. Metal-Oxide Technologies, Inc. (MetOx) is a Houston-based small business that is developing and manufacturing second-generation (2G) HTS wire using an all-Metallo-Organic Chemical Vapor Deposition (MOCVD) process, including the buffer layers and HTS coating. Advances toward commercialization were enabled by coordinated interactions that facilitated the synthesis, characterization, and iterative optimization of prototype 2G wire segments.

  14. Metabolic control of IgG binding and loss from the tegument of Schistosoma mansoni

    E-Print Network [OSTI]

    Miller, Robert Eugene

    1978-01-01T23:59:59.000Z

    -mouse IEG Inhibitors. Benzidi. ne Solution Ouchterlony Gel Diffusion Imstunolcctrophoresis Passive Haemagglutination I'reRarat. ion for Electron Microscopy L I 2 15 19 21 24 24 2J 25 26 RESLi I TS . 28 Conc'ulavdiin A Rabbit Anti.... ird . ', n horse e dish per ox i&Jane. (ilgcll) (2&JO!&g/mi in PBS PH 7. 2) (Sigma grade &/T, Sr. I r&uis) (Becnhar ' and B'rameas, 197l ), o! an ndc'it!nr al 30 min and processed i. benzidine soli:L!on (p. 24). The opt!mal Con B conceal rat ! nci...

  15. TREKisM Issue 31

    E-Print Network [OSTI]

    1983-01-01T23:59:59.000Z

    OX) Canada Dr. Joan E. 8auman 4636 Candleglow br., St. Louis, MO 63129 ·Timmie Beuachamp P 0 80x 153, Dorfield Beach, FL 33441 Judith L. Bessai 1806 W. William Apt 3, Champaign, IL 61821 Joan Blummetti-Santapaga 168 Memphis Ave, Staten Is, NY..., M1W 1Z7 Patt Demetri 24600 Joy Rd, #2, Redford, MI 48239 .Madeleine Dessureault 6B4 Albert, Ottawa, ONT, K1R 6L3 Canada .Adrienne M. L. Deutsch 7000 Blvd. East #128C, Guttenburg NJ 07093 .Valerie DeVries 907 Fulton Ave, Winthrop Harbor, IL 60096...

  16. Quantitative determination and characterization of iron coatings on rice root surfaces

    E-Print Network [OSTI]

    Chen, Cy-Chain

    1979-01-01T23:59:59.000Z

    Chairman of Advisory Committee: Dr. Joe B. Dixon Iron oxyhydroxide (FeOOH) formed on rice root surfaces by the ox- idation of ferrous ions in the soil solution by oxygen released from the roots. The FeOOH coatings were extracted by dithionite...-citrate- bi. carbonate treatment. Three factors (rice variety, growth stage of rice and soil type) were determined to be statistically significant in relation to the amount of iron oxyhydroxide per unit weight of dry root. The accumulation of Fe...

  17. Synthesis of iron oxides and the influence of organic acids on the resolubilization of iron minerals 

    E-Print Network [OSTI]

    Clarke, Eric Thacher

    1984-01-01T23:59:59.000Z

    to renew Fe in solution (Viets and Lindsay, 1973). Furthermore, a chelate test could be used to simulate the dissolution of oxide phases with high specific surface areas or poor crystallinity. Borggaard (1976) used EDTA buffered at pH 5. 2 and lower... and reducing agents, buffered in 1. 0 N NH4 acetate at pH 3. 5 and 4. 75, Dissolution rate in oxalic acid decreased in the following order: ferrihydrite, lep1docroc1te, and goeth1te. Rate of Fe ox1de dissolution 1n the presence of com- plexing and reducing...

  18. Molecular composition of biogenic secondary organic aerosols using ultrahigh resolution mass spectrometry: comparing laboratory and field studies

    E-Print Network [OSTI]

    Kourtchev, I.; Fuller, S. J.; Giorio, C.; Healy, R. M.; Wilson, E.; O'Connor, I.; Wenger, J. C.; McLeod, M.; Aalto, J.; Ruuskanen, T. M.; Maenhaut, W.; Jones, R.; Venables, D. S.; Sodeau, J. R.; Kulmala, M.; Kalberer, M.

    2014-01-01T23:59:59.000Z

    of fluorine–ethene– propene (FEP) Teflon® foil with a volume of 3.91 m3. It was operated at 296± 2 K using purified air at 0.1–1 mbar above atmospheric pressure. The experiments were performed at 60–68 % relative humidity produced from bubbling puri- fied air... can possibly be used for parameterisation of OA at the boreal site. O / C ratios may not accurately describe the degree of ox- idation of organics, because other non-oxidative processes (e.g. hydration and dehydration) can also affect these pa...

  19. Molecular composition of biogenic secondary organic aerosols using ultrahigh-resolution mass spectrometry: comparing laboratory and field studies

    E-Print Network [OSTI]

    Kourtchev, I.; Fuller, S. J.; Giorio, C.; Healy, R. M.; Wilson, E.; O'Connor, I.; Wenger, J. C.; McLeod, M.; Aalto, J.; Ruuskanen, T. M.; Maenhaut, W.; Jones, R.; Venables, D. S.; Sodeau, J. R.; Kulmala, M.; Kalberer, M.

    2013-11-12T23:59:59.000Z

    of fluorine–ethene– propene (FEP) Teflon® foil with a volume of 3.91 m3. It was operated at 296± 2 K using purified air at 0.1–1 mbar above atmospheric pressure. The experiments were performed at 60–68 % relative humidity produced from bubbling puri- fied air... can possibly be used for parameterisation of OA at the boreal site. O / C ratios may not accurately describe the degree of ox- idation of organics, because other non-oxidative processes (e.g. hydration and dehydration) can also affect these pa...

  20. Compression tests on round, structural steel tubes as pin-end columns

    E-Print Network [OSTI]

    Porter, David Herbert, Jr

    1948-01-01T23:59:59.000Z

    : GH i'OiIiG CZGCrrr, SmaII ~~ S AG PIP-ZQ) CGLKW~ Ii&KGD JC'i:ICE A compression ma bax ie defined as o baX ox member (either solid or b~t u?, and approW. ately straight) ecbfected to comprcsoive loads nt the endsx noting paxallel to the e~ of tho...~lykng than, Nore tests on real high strength rolled colunns of solid cross section or rolled shapes are needed, (1S) This investigation was undertaken to provide additional data for the overall oo3. unm research proJect ef the Texas Engineering Experivsnt...

  1. Visualizing Music

    E-Print Network [OSTI]

    Haggerty, Mary Beth

    1995-01-01T23:59:59.000Z

    . Craig Hammack demonstrated super human levels of pat ience throughout this process and he lped me retain my focus. I would also like to thank my comrades in the Visualization Laboratory, they have expanded my horizons a n d given a g o o d ba lance... the unrounded, warm. Consonants were realized by their manner of articulation and if they were vo iced. For example, the frictive f is cerulean blue and frictive y is violet. The breaks or breaths in the text FIGURE 1: Ox; URSONATE, 2nd Half of the Fourth...

  2. A high frequency method for the determination of moisture in salts which form hydrates

    E-Print Network [OSTI]

    Anderson, Robert Franklin

    1955-01-01T23:59:59.000Z

    oon- tamination of the solvent ?1th ?ster from the air oeeurred ~ The solvents ?ers kept tightly sealed in theiz respective oontainers ?1th pressure sensitive tsyo ox' equi. pyed with a ~ iphon and an aiz' vent tube equipped ?1th drying tubes... then weighed seourstelp fzom tho above matezial and returned to the oven foz ~ period of 6 houz ~ with ?sighing every two hours te insure drgneee ~ The an hydrous salt wae then sealed in s dz7 reagent bottle with pressure tape to insuz...

  3. Coarse-graining DNA for simulations of DNA nanotechnology

    E-Print Network [OSTI]

    Doye, Jonathan P K; Louis, Ard A; Romano, Flavio; Sulc, Petr; Matek, Christian; Snodin, Benedict E K; Rovigatti, Lorenzo; Schreck, John S; Harrison, Ryan M; Smith, William P J

    2013-01-01T23:59:59.000Z

    To simulate long time and length scale processes involving DNA it is necessary to use a coarse-grained description. Here we provide an overview of different approaches to such coarse graining, focussing on those at the nucleotide level that allow the self-assembly processes associated with DNA nanotechnology to be studied. OxDNA, our recently-developed coarse-grained DNA model, is particularly suited to this task, and has opened up this field to systematic study by simulations. We illustrate some of the range of DNA nanotechnology systems to which the model is being applied, as well as the insights it can provide into fundamental biophysical properties of DNA.

  4. X-Ray Diffraction Microscopy of Magnetic Structures

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What'sis Taking Over OurThe Iron SpinPrincetonUsingWhat isJoin theanniversaryI 1 0 3 P 0 d d X O OX-Ray

  5. X-Ray Imaging Current-Driven Magnetic Domain-Wall Motion in Nanowires

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What'sis Taking Over OurThe Iron SpinPrincetonUsingWhat isJoin theanniversaryI 1 0 3 P 0 d d X OX-Ray

  6. Hurst exponent of very long birth time series in XX century Romania. Social and religious aspects

    E-Print Network [OSTI]

    Rotundo, G; Herteliu, C; Ileanu, B

    2015-01-01T23:59:59.000Z

    The Hurst exponent of very long birth time series in Romania has been extracted from official daily records, i.e. over 97 years between 1905 and 2001 included. The series result from distinguishing between families located in urban (U) or rural (R) areas, and belonging (Ox) or not (NOx) to the orthodox religion. Four time series combining both criteria, (U,R) and (Ox, NOx), are also examined. A statistical information is given on these sub-populations measuring their XX-th century state as a snapshot. However, the main goal is to investigate whether the "daily" production of babies is purely noisy or is fluctuating according to some non trivial fractional Brownian motion, - in the four types of populations, characterized by either their habitat or their religious attitude, yet living within the same political regime. One of the goals was also to find whether combined criteria implied a different behavior. Moreover, we wish to observe whether some seasonal periodicity exists. The detrended fluctuation analysis...

  7. Electrical conductivity in oxygen-deficient phases of transition metal oxides from first-principles calculations.

    SciTech Connect (OSTI)

    Bondi, Robert James; Desjarlais, Michael Paul; Thompson, Aidan Patrick; Brennecka, Geoffrey L.; Marinella, Matthew

    2013-09-01T23:59:59.000Z

    Density-functional theory calculations, ab-initio molecular dynamics, and the Kubo-Greenwood formula are applied to predict electrical conductivity in Ta2Ox (0x5) as a function of composition, phase, and temperature, where additional focus is given to various oxidation states of the O monovacancy (VOn; n=0,1+,2+). Our calculations of DC conductivity at 300K agree well with experimental measurements taken on Ta2Ox thin films and bulk Ta2O5 powder-sintered pellets, although simulation accuracy can be improved for the most insulating, stoichiometric compositions. Our conductivity calculations and further interrogation of the O-deficient Ta2O5 electronic structure provide further theoretical basis to substantiate VO0 as a donor dopant in Ta2O5 and other metal oxides. Furthermore, this dopant-like behavior appears specific to neutral VO cases in both Ta2O5 and TiO2 and was not observed in other oxidation states. This suggests that reduction and oxidation reactions may effectively act as donor activation and deactivation mechanisms, respectively, for VO0 in transition metal oxides.

  8. Fabrication and characterization of junctionless carbon nanotube field effect transistor for cholesterol detection

    SciTech Connect (OSTI)

    Barik, Md. Abdul, E-mail: abdulnpl@gmail.com; Dutta, Jiten Ch. [Department of Electronics and Communication Engineering, Tezpur University, Napaam, Tezpur, Assam 784028 (India)

    2014-08-04T23:59:59.000Z

    We have reported fabrication and characterization of polyaniline (PANI)/zinc oxide (ZnO) membrane-based junctionless carbon nanotube field effect transistor deposited on indium tin oxide glass plate for the detection of cholesterol (0.5–22.2?mM). Cholesterol oxidase (ChOx) has been immobilized on the PANI/ZnO membrane by physical adsorption technique. Electrical response has been recorded using digital multimeter (Agilent 3458A) in the presence of phosphate buffer saline of 50?mM, pH 7.0, and 0.9% NaCl contained in a glass pot. The results of response studies for cholesterol reveal linearity as 0.5–16.6?mM and improved sensitivity of 60?mV/decade in good agreement with Nernstian limit ?59.2?mV/decade. The life time of this sensor has been found up to 5 months and response time of 1?s. The limit of detection with regression coefficient (r) ? 0.998 and Michaelis-Menten constant (K{sub m}) were found to be ?0.25 and 1.4?mM, respectively, indicating high affinity of ChOx to cholesterol. The results obtained in this work show negligible interference with glucose and urea.

  9. An In-Situ XAS Study of the Structural Changes in a CuO-CeO2/Al2O3 Catalyst during Total Oxidation of Propane

    SciTech Connect (OSTI)

    Silversmith, Geert; Poelman, Hilde; Poelman, Dirk; Gryse, Roger de [Ghent University, Department of Solid State Sciences, Krijgslaan 281 S1, B-9000 Gent (Belgium); Olea, Maria; Balcaen, Veerle; Heynderickx, Philippe; Marin, Guy B. [Ghent University, Laboratorium voor Petrochemische Techniek, Krijgslaan 281 S5, B-9000 Gent (Belgium)

    2007-02-02T23:59:59.000Z

    A CuOx-CeOx/Al2O3 catalyst was studied with in-situ transmission Cu K XAS for the total oxidation of propane as model reaction for the catalytic elimination of volatile organic compounds. The local Cu structure was determined for the catalyst as such, after pre-oxidation and after reduction with propane. The catalyst as such has a local CuO structure. No structural effect was observed upon heating in He up to 600 deg. C or after pre-oxidation at 150 deg. C. A full reduction of the Cu2+ towards metallic Cu0 occurred, when propane was fed to the catalyst. The change in local Cu structure during propane reduction was followed with a time resolution of 1 min. The {chi}(k) scans appeared as linear combinations of start and end spectra, CuO and Cu structure, respectively. However, careful examination of the XANES edge spectra indicates the presence of a small amount of additional Cu1+ species.

  10. Silicon Oxynitride Thin Film Barriers for PV Packaging (Poster)

    SciTech Connect (OSTI)

    del Cueto, J. A.; Glick, S. H.; Terwilliger, K. M.; Jorgensen, G. J.; Pankow, J. W.; Keyes, B. M.; Gedvilas, L. M.; Pern, F. J.

    2006-10-03T23:59:59.000Z

    Dielectric, adhesion-promoting, moisture barriers comprised of silicon oxynitride thin film materials (SiOxNy with various material stoichiometric compositions x,y) were applied to: 1) bare and pre-coated soda-lime silicate glass (coated with transparent conductive oxide SnO2:F and/or aluminum), and polymer substrates (polyethylene terephthalate, PET, or polyethylene napthalate, PEN); plus 2) pre- deposited photovoltaic (PV) cells and mini-modules consisting of amorphous silicon (a-Si) and copper indium gallium diselenide (CIGS) thin-film PV technologies. We used plasma enhanced chemical vapor deposition (PECVD) process with dilute silane, nitrogen, and nitrous oxide/oxygen gas mixtures in a low-power (< or = 10 milliW per cm2) RF discharge at ~ 0.2 Torr pressure, and low substrate temperatures < or = 100(degrees)C, over deposition areas ~ 1000 cm2. Barrier properties of the resulting PV cells and coated-glass packaging structures were studied with subsequent stressing in damp-heat exposure at 85(degrees)C/85% RH. Preliminary results on PV cells and coated glass indicate the palpable benefits of the barriers in mitigating moisture intrusion and degradation of the underlying structures using SiOxNy coatings with thicknesses in the range of 100-200 nm.

  11. Introducing Improved Structural Properties and Salt Dependence into a Coarse-Grained Model of DNA

    E-Print Network [OSTI]

    Snodin, Benedict E K; Mosayebi, Majid; Sulc, Petr; Schreck, John S; Romano, Flavio; Ouldridge, Thomas E; Tsukanov, Roman; Nir, Eyal; Louis, Ard A; Doye, Jonathan P K

    2015-01-01T23:59:59.000Z

    We introduce an extended version of oxDNA, a coarse-grained model of DNA designed to capture the thermodynamic, structural and mechanical properties of single- and double-stranded DNA. By including explicit major and minor grooves, and by slightly modifying the coaxial stacking and backbone-backbone interactions, we improve the ability of the model to treat large (kilobase-pair) structures such as DNA origami which are sensitive to these geometric features. Further, we extend the model, which was previously parameterised to just one salt concentration ([Na+]=0.5M), so that it can be used for a range of salt concentrations including those corresponding to physiological conditions. Finally, we use new experimental data to parameterise the oxDNA potential so that consecutive adenine bases stack with a different strength to consecutive thymine bases, a feature which allows a more accurate treatment of systems where the flexibility of single-stranded regions is important. We illustrate the new possibilities opened...

  12. Evidence Against BALS in the X-ray Bright QSO PG1416-129

    E-Print Network [OSTI]

    Paul J. Green; Thomas L. Aldcroft; Smita Mathur; Norbert Schartel

    1997-02-24T23:59:59.000Z

    Recent results from the ROSAT All Sky Survey, and from deep ROSAT pointings reveal that broad absorption line quasars (BALQSOs) are weak in the soft X-ray bandpass (with optical-to-X-ray spectral slope alpha_{ox}>1.8) in comparison to QSOs with normal OUV spectra (mean alpha_{ox}=1.4). One glaring exception appeared to be the nearby BALQSO PG1416-129, which is a bright ROSAT source showing no evidence for intrinsic soft X-ray absorption. We present here our new HST FOS spectrum of PG1416-129, in which we find no evidence for BALs. We show that the features resulting in the original BAL classification, based on IUE spectra, were probably spurious. On the basis of UV, X-ray and optical evidence, we conclude that PG1416-129, is not now, and has never been a BALQSO. Our result suggests that weak soft X-ray emission is a defining characteristic of true BALQSOs. If BALQSOs indeed harbor normal intrinsic spectral energy distributions, their observed soft X-ray weakness is most likely the result of absorption. The ubiquitous occurrence of weak soft X-ray emission with UV absorption (BALs) thus suggests absorbers in each energy regime that are physically associated, if not identical.

  13. A Full Year's Chandra Exposure on SDSS Quasars from the Chandra Multiwavelength Project

    E-Print Network [OSTI]

    Paul J. Green; T. L. Aldcroft; G. T. Richards; W. A. Barkhouse; A. Constantin; D. Haggard; M. Karovska; D. -W. Kim; M. Kim; A. Vikhlinin; A. Mossman; J. D. Silverman; S. F. Anderson; V. Kashyap; B. J. Wilkes; H. Tananbaum

    2008-09-05T23:59:59.000Z

    We study the spectral energy distributions and evolution of a large sample of optically selected quasars from the Sloan Digital Sky Survey (SDSS) that were observed in 323 Chandra images analyzed by the Chandra Multiwavelength Project (ChaMP). Our highest-confidence matched sample includes 1135 X-ray detected quasars in the redshift range 0.23 QSOs detected, we find no evidence for evolution out to z~5 for either the X-ray photon index Gamma or for the ratio of optical/UV to X-ray flux alpha_ox. About 10% of detected QSOs are obscured (Nh>1E22), but the fraction might reach ~1/3 if most non-detections are absorbed. We confirm a significant correlation between alpha_ox and optical luminosity, but it flattens or disappears for fainter AGN alone. Gamma hardens significantly both towards higher X-ray luminosity, and for relatively X-ray loud quasars. These trends may represent a relative increase in non-thermal X-ray emission, and our findings thereby strengthen analogies between Galactic black hole binaries and AGN.

  14. Bimetallic Ni-Rh catalysts with low amounts of Rh for the steam and autothermal reforming of n-butane for fuel-cell applications.

    SciTech Connect (OSTI)

    Ferrandon, M.; Kropf, A. J.; Krause, T.; Chemical Sciences and Engineering Division

    2010-05-15T23:59:59.000Z

    Mono-metallic nickel and rhodium catalysts and bimetallic Ni-Rh catalysts supported on La-Al{sub 2}O{sub 3}, CeZrO{sub 2} and CeMgOx were prepared and evaluated for catalyzing the steam and autothermal reforming of n-butane. The binary Ni-Rh supported on La-Al{sub 2}O{sub 3} catalysts with low weight loading of rhodium exhibited higher H{sub 2} yields than Ni or Rh alone. The Ni-Rh/CeZrO{sub 2} catalyst exhibited higher performance and no coke formation, compared to the same metals on other supports. A NiAl{sub 2}O{sub 4} spinel phase was obtained on all Ni and Ni-Rh catalysts supported on La-Al{sub 2}O{sub 3}. The presence of rhodium stabilized the spinel phase as well as NiOx species upon reforming while Ni alone was mostly reduced into metallic species. Extended X-ray absorption fine-structure analysis showed evidence of Ni-Rh alloy during preparation and even further after an accelerated aging at 900C in a H{sub 2}/H{sub 2}O atmosphere.

  15. Cost-effective and highly sensitive cholesterol microsensors with fast response based on the enzyme-induced conductivity change of polyaniline

    SciTech Connect (OSTI)

    Fang, Kuan-Chung; Chu, Chia-Ho; Hsu, Chen-Pin; Kang, Yen-Wen; Fang, Jung-Ying; Chen, Chih-Chen; Li, Sheng-Shian; Andrew Yeh, J.; Yao, Da-Jeng; Wang, Yu-Lin, E-mail: ylwang@mx.nthu.edu.tw [Institute of Nanoengineering and Microsystems, National Tsing Hua University, Hsinchu 300, Taiwan (China); Hsu, Chia-Hsien [Division of Medical Engineering, National Health Research Institutes, MiaoLi, Taiwan (China); Huang, Yu-Fen [Department of Biomedical Engineering and Environmental Science, National Tsing Hua University, Hsinchu 300, Taiwan (China)

    2014-09-15T23:59:59.000Z

    In this study, a cost-effective and highly sensitive cholesterol microsensor, which is consisted of cholesterol oxidase (ChOx), horseradish peroxidase (HRP), and polyaniline (PANI), was developed based on the enzyme-induced conductivity change of PANI with fast response. Hydrogen peroxide is produced via the reaction between cholesterol and ChOx, which was immobilized in a dialysis membrane. The produced hydrogen peroxide can oxidize HRP, which can be reduced by oxidizing PANI, thus resulting in decreased conductivity of the polyaniline thin film. The reduced HRP can be oxidized again by hydrogen peroxide and the cycle of the oxidation/reduction continues until all hydrogen peroxide are reacted, leading to the high sensitivity of the sensor due to the signal contributed from all hydrogen peroxide molecules. Cholesterol was detected near the physiological concentrations ranging from 100?mg/dl to 400?mg/dl with the cholesterol microsensors. The results show linear relation between cholesterol concentration and the conductivity change of the PANI. The microsensor showed no response to cholesterol when the PANI was standalone without cholesterol oxidase immobilized, indicating that the enzymatic reaction is required for cholesterol detection. The simple process of the sensor fabrication allows the sensor to be cost-effective and disposable usage. This electronic cholesterol microsensor is promising for point-of-care health monitoring in cholesterol level with low cost and fast response.

  16. Bubble formation in reservoir fluids at low supersaturations

    E-Print Network [OSTI]

    Wieland, Denton R

    1956-01-01T23:59:59.000Z

    reservoir cox'e, oil and gca obtcfned directly from the Ranf;oly Field in Color: Co, &cod mounted the core in ' Gap'"cr afz'ilier to the coro tlountiflf' re' orted in this ~mr%, Tho oil:nd g:. a ~me reconMned:n the 1abora- tory uith u bubble point ox lg...;te rrd one ron thc c!;-ber ho using, vere coi. "ected to a c ~urce 'f 9. C, current crx'. tc s circuit br+, l. cr &Nicli rc:. iiyc'. ll c. illic-~ores to operate !Lon the v; lvc sto M. ached ti;e pl. ". te the electrical circuit vo 1~'. be closed ~nd...

  17. Predicting college freshman English grades at the Agricultural and Mechanical College of Texas

    E-Print Network [OSTI]

    Terry, Ralph L

    1953-01-01T23:59:59.000Z

    indepen4en t vax iab 1 os ~ 21 The estimating equation uses Cwo independent variablesx the English test soores (X2) and the high sohool average Md lish gx'ades (X ) ~ (See short 1) ~ An estimating chart was Xl e 1'23 Z 12'3 X&) f 13' Z Xl e -18 ~ 1... in a I ~ OhnOIOgiOal lj llegeoa' Jaurnal f a~11 4 ~P ~ Oh~el XXVXXE 19$3o "Preshman Ox ades and the A. C. E. , " ~Shool and ~oc ~~et E XLVXI E 1938 ~ Osborne ~ R. Te E Sanders, W. Be and Gx'eexxe ~ J ~ Ee E "The Dif- ferential Prediction...

  18. Isobaric incompressibility of the isospin asymmetric nuclear matter

    E-Print Network [OSTI]

    D. N. Basu; P. Roy Chowdhury; C. Samanta

    2009-11-09T23:59:59.000Z

    The isospin dependence of the saturation properties of asymmetric nuclear matter, particularly the incompressibility $K_\\infty (X) = K_\\infty + K_\\tau X^2 + O(X^4)$ at saturation density is systematically studied using density dependent M3Y interaction. The $K_\\tau$ characterizes the isospin dependence of the incompressibility at saturation density $\\rho_0$. The approximate expression $K_{asy} \\approx K_{sym}-6L$ is often used for $K_\\tau$ where $L$ and $K_{sym}$ represent, respectively, the slope and curvature parameters of the symmetry energy at $\\rho_0$. It can be expressed accurately as $K_\\tau=K_{sym}-6L-\\frac{Q_0}{K_\\infty}L$ where $Q_0$ is the third-order derivative parameter of symmetric nuclear matter at $\\rho_0$. The results of this addendum to Phys. Rev. C 80, 011305(R) (2009) indicate that the $Q_0$ contribution to $K_\\tau$ is not insignificant.

  19. A critical study of the Boussinesq adaptation of Flamant's plane stress elasticity solution, utilizing the digital computer

    E-Print Network [OSTI]

    Moritz, Burt Edwin

    1967-01-01T23:59:59.000Z

    the method developed in this thesis. Input of External Load First a load P is applied to a semi-infinite plane A-B (See Fig. 3-2) which extends downward. The stresses at points of interest, these being the points that will be insi, de...(TSCt XBCI(4)=H H COX(TBCI TBC(lll H H 5(H(TSC( vectlz& z. s+H s(N(rect '/SCI(31 5 0+H 5(tt(TeC( 78(lth)-2. 5 tt ~ )lttttsCI tle CONTI(DE Xl 0 COIIPI/4. 1 0 (6 H- 0)/15. Dx 0 Col)t I/4 I XI IXI OX I/2 ~ oo 89 11 I h 12 I 26 13 I 40 14=1 70 Tec...

  20. Short time proton dynamics in bulk ice and in porous anode solid oxide fuel cell materials

    SciTech Connect (OSTI)

    Basoli, Francesco [Università degli Studi di Roma Tor Vergata, Italy] [Università degli Studi di Roma Tor Vergata, Italy; Senesi, Roberto [ORNL] [ORNL; Kolesnikov, Alexander I [ORNL] [ORNL; Licoccia, Silvia [NAST Center, University of Roma "Tor Vergata"] [NAST Center, University of Roma "Tor Vergata"

    2014-01-01T23:59:59.000Z

    Oxygen reduction and incorporation into solid electrolytes and the reverse reaction of oxygen evolution play a cru-cial role in Solid Oxide Fuel Cell (SOFC) applications. However a detailed un derstanding of the kinetics of the cor-responding reactions, i.e. on reaction mechanisms, rate limiting steps, reaction paths, electrocatalytic role of materials, is still missing. These include a thorough characterization of the binding potentials experienced by protons in the lattice. We report results of Inelastic Neutron Scattering (INS) measurements of the vibrational state of the protons in Ni- YSZ highly porous composites (75% to 90% ), a ceramic-metal material showing a high electrical conductivity and ther mal stability, which is known to be most effectively used as anodes for solid ox ide fuel cells. The results are compared with INS and Deep Inelastic Neutron Scattering (DINS) experiments on the proton binding states in bulk ice.

  1. Studies on the toxicity of biuret to animals

    E-Print Network [OSTI]

    Berry, William T

    1955-01-01T23:59:59.000Z

    , 1$0q IOQ 'aeak NfO &+@+~a Comic ?ymea%eee 4avakeqet ~ aa4 eat? meal acme? at Qe htwhaab bleat Xamti Xe 1tgh4, of 4' et4e ?cage ef eeeAta of gaea foa4Log aa4 4ba wa4eeoaIeLse4 atcatf~ ef btuaa4 Ce aeeaeaotaX ' aaaa& a a~y Iaae4 ~e, ' 1g4teaho4 Ae... and crude biurst fox biurst and nitro gsn content? The method of Young (19+) was used to de'Cex mine ths biurst content and Chs KJsldahl method was used to determine the nitrogen content ox protein equivalent (N x 6?25) ~ This provided information...

  2. Our Family's Food: How We Plan to Get It.

    E-Print Network [OSTI]

    Reasonover, Frances L.; Mason, Louise; Harris, Jimmie Nell; Cox, Maeona

    1956-01-01T23:59:59.000Z

    . Select ox of the plans and find the groups which ccr. respond to the age, sex and activity of all yoor family members. Transfer these amounts tr g 1- w, bb, bet? t?,t?t-PSW ,t?I?cD W % g 1 ow a(ow aww ss ***hvlw... -3'dcdc-l' 0 5 a$ a" c m k gm 5 e-5 2~2 CQZM +:+8,3 g'&'g; ' E U Ej yyy qO?q I., "1"19 ,.I *c?Y*c?* om.. c?Yc9" ,,...I ,1)1 0 : ; . . . . , . ,OIII 00-4 ..I ,I, I.. ..I ,,I ,.#.I* ,.*I ,,..I. .,se .I ,. I...

  3. The assimilation of the Japanese in the Houston area of Texas

    E-Print Network [OSTI]

    Kunihiro, Ken

    1951-01-01T23:59:59.000Z

    + '. . . ":. 11 ~ ~ oo ~ 1 ~ eoe ~ oo ~ ~ 111 ~ I ~ cools ~ 1 ~ el ~ oeo ~ ~ 4 ts 57 P&-'XtVW OZ ". -' "-m. I'-. 'e. ' . . i ~ '::: '. 'W fi . ~ ~- . . gf YO. : . "' 1 1 1 1 1 ~ 1 ~ ~ 4 4 1 4 ~ e 41 ~ 1 ~ ~ 1 ~ 1 1 4 ~ 1 4 1 1 ~ ~ ~ ~ 1 1 4 e 1 1 ~ 4 4 1 4 59...~ cpxlte as se11 as~ and often bettex than tbe ctdidrsn of native white paxentsI . &SF' eIKl HQXor stats that the Jey-" nese si11 do ~g co g~ an edncWion ox to enable the~ chi1dren to obtalxx it 2/ ~ ~N?, ~ere uatos u. cue. aeaa aaa co. , aoeson, y cv...

  4. Vector norms, convex bodies and subordinate matrix norms

    E-Print Network [OSTI]

    Dean, Joe Harvey

    1971-01-01T23:59:59.000Z

    y + . . . + x y n n' Efe have [6] (2. 4) o & I Ix~oyl I, = &x+a?x+?) = ( -) + &x y' + ' 2 = I I I I', + o(x?) + (x, y) + ' " I lyl 12 Echen (x, y) = 0, the Cauchy-ScEurartz inequality is obviously true. Ec'hen (x, y) $ 0, let u = ? I I xl I (x... sum, ;-ill be used in proving an eouality . ;Ixich will be used in the proof of Theorea 4. 1. DEFTNITTON 4. L. The Ninkowski sum [4] of ts;o; ts. G and 8 n in E is given by G 6 Ii = {g -I- h ~ g G, h s ii). Normal vector n addition in E is used...

  5. Wartime problems of financial statements 

    E-Print Network [OSTI]

    Rodgers, Claude Wayman

    1943-01-01T23:59:59.000Z

    enx eatsxiaL y~ tice~ xsad. tsd in a considsxabie dxsin myon the Qoxyoxationss each kt ths snd of 1942' boxxowings fxoa banks nndsr the texoe 'of ths Osnsxsl Iotoxs @. QQQ QCOJSO V~sn cxsdit ~ent amannted to @MsQN, CO+, The PhQ, co foxyoxatLon did...JRtione Xn the current asset coction of Ms hQsncs chest fox 1948 the fo3Xa6ng ees fcundx kccaaats HsceivehLe? inc1ncEng gs~SR~OOQ estieati@ to he rscsivshLe thmogh csn ceiLXatiom of United States Qovexxxxsnt ox@srs 4 4 4 i 4 . ~ 4 4 0 + 0 45$85xOOO4 30...

  6. Accounting methods for recognition of fixed asset underdepreciation 

    E-Print Network [OSTI]

    Hidell, Richard Robinson

    1948-01-01T23:59:59.000Z

    and rop~t, . ac crob3?n of a rishi?g "cost of livLnp" is not, co&xfincd to t&&e ind&i?i&h&al?1? t is al'o t1&c ?ara:&oust consiWration of business tod&t1. 0 incu trial conccxns it ia cK, da&ctx- not only by incrsas'1ng "&aterial and 3;&bor co ts, ?Mc...?ss of Qcti'3n ?Jhicll will enable tho ~ant nost efficiently to perfom thc tasks ossiAned to hin ~ &1 i-n&xxvlcdgo of t!. o xc&ont, of tho postwar incxv ocec in costs 1&ill !&ox~ in undcrst?ldtni ti&e serio Jensen of lQBGPO-&ont 58 Dl'ob3AK&8 of. dopn ci...

  7. Investigation of forced and isothermal chemical vapor infiltrated SiC/SiC ceramic matrix composites. Final report

    SciTech Connect (OSTI)

    Sankar, J.; Kelkar, A.D.; Vaidyanathan, R. [North Carolina Agricultural and Technical State Univ., Greensboro, NC (United States). Dept. of Mechanical Engineering

    1993-09-01T23:59:59.000Z

    Mechanical properties of two different layups for each of the forced CVI (41 specimens) and isothermal CVI (36 specimens) materials were investigated in air at room temperature (RT), 1000C, and at room temperature after thermal shock (RT/TS) and exposure to oxidation (RT/OX). The FCVI specimens had a nominal interfacial coating thickness of 0.3 {mu}m of pyrolytic carbon, while CVI specimens had a coating thickness of 0.1 {mu}m. Effect of reinforcement and interfacial bond on mechanical properties of composite were investigated. Scanning electron microscopy (SEM) and transmission electron microscopy (TEM) were employed to analyze the fiber-matrix interface and the toughening mechanisms in this ceramic composite system.

  8. Heterotic Model Building: 16 Special Manifolds

    E-Print Network [OSTI]

    Yang-Hui He; Seung-Joo Lee; Andre Lukas; Chuang Sun

    2014-05-13T23:59:59.000Z

    We study heterotic model building on 16 specific Calabi-Yau manifolds constructed as hypersurfaces in toric four-folds. These 16 manifolds are the only ones among the more than half a billion manifolds in the Kreuzer-Skarke list with a non-trivial first fundamental group. We classify the line bundle models on these manifolds, both for SU(5) and SO(10) GUTs, which lead to consistent supersymmetric string vacua and have three chiral families. A total of about 29000 models is found, most of them corresponding to SO(10) GUTs. These models constitute a starting point for detailed heterotic model building on Calabi-Yau manifolds in the Kreuzer-Skarke list. The data for these models can be downloaded here: http://www-thphys.physics.ox.ac.uk/projects/CalabiYau/toricdata/index.html

  9. Preliminary results obtained with an apparatus for studying the effect of carbon dioxide on consumption of oxygen by respiring cotton roots

    E-Print Network [OSTI]

    Hinesly, Thomas Daniel

    1956-01-01T23:59:59.000Z

    'ai . ivy. -ioX~&ie6-'Xe;:: -', -. " -':. . ;;, ?, :;=-'--, -', :?. q =. ==-. -~Wm yekkvy~apbM kii4hok-'M4xeleiW-'~ ~:mC ? -' EXCOiCBCCk . $28 ) y, Sg. :C98BQ 5g 4 p3. @5$gRM hli4Z'838 C4X i&5 @tibet 4@BX, ~ B, QgDQ@p. ~ gyle~'ggq@ ~~ ~ ~~w ~ZQSi@B tkg..., giveri poet d4metyx 8't'j-eyeeMfe. te~~ ' . --, 'i~~'-", ~:4emn4a- ef::thj:Xe4ewmgt -eo ji of-;the ~4="'=, -=-" =- -:: ' t -~e' be9ijj eet'Retied~; bent M' oxygen. tempted heeezey cf. -'. oxL4k't'lQxl Qf', eR~sg llpectl'g 4epszl@exlt 'Qp55, ~e4...

  10. Measurement of the resistivity versus temperature in iodine single crystals

    E-Print Network [OSTI]

    Somoano, Robert Bonner

    1964-01-01T23:59:59.000Z

    ''vr'xcaT :. . -; '. conduction mec'hanism similar' to. that yropose'd bj'thi band thccxjr, ". '=. : ', . '::'-''-' in solid'state- phjsics -'ibis aiticje stimulated''considbrable / 9nterest 9. n''thc solid state p'rope'rites ox m'olecuinr crystals' ;' '. -'. , ; ? Nost of...'armies' ?' "-:-', ?&. ':: ~ of iodixio w. der . preseux'o ~&ne results of the war'- dona. in the punt few ?"eIxrs indicate t'hat, there is considerable cU, cn~reezent . ' ' . , -'acbO4ti-tIXe: C&n, -, e MMhe=:rSSXS4anba-af itijHne -With, -Prb~ure--XCnd , ?' '-' ji1sy...

  11. Thermally integrated staged methanol reformer and method

    DOE Patents [OSTI]

    Skala, Glenn William (Churchville, NY); Hart-Predmore, David James (Rochester, NY); Pettit, William Henry (Rochester, NY); Borup, Rodney Lynn (East Rochester, NY)

    2001-01-01T23:59:59.000Z

    A thermally integrated two-stage methanol reformer including a heat exchanger and first and second reactors colocated in a common housing in which a gaseous heat transfer medium circulates to carry heat from the heat exchanger into the reactors. The heat transfer medium comprises principally hydrogen, carbon dioxide, methanol vapor and water vapor formed in a first stage reforming reaction. A small portion of the circulating heat transfer medium is drawn off and reacted in a second stage reforming reaction which substantially completes the reaction of the methanol and water remaining in the drawn-off portion. Preferably, a PrOx reactor will be included in the housing upstream of the heat exchanger to supplement the heat provided by the heat exchanger.

  12. Investigation of crystalline and electronic band alignment properties of GaP/Ge(111) heterostructure

    SciTech Connect (OSTI)

    Dixit, V. K.; Kumar, Shailendra; Singh, S. D.; Khamari, S. K.; Kumar, R.; Tiwari, Pragya; Sharma, T. K.; Oak, S. M. [Raja Ramanna Centre for Advanced Technology, Indore, Madhya Pradesh 452013 (India); Phase, D. M. [UGC-DAE Consortium for Scientific Research, Khandwa Road, Indore, Madhya Pradesh 452001 (India)

    2014-03-03T23:59:59.000Z

    Gallium phosphide (GaP) epitaxial layer and nanostructures are grown on n-Ge(111) substrates using metal organic vapour phase epitaxy. It is confirmed by high resolution x-ray diffraction measurements that the layer is highly crystalline and oriented with the coexistence of two domains, i.e., GaP(111)A and GaP(111)B, with an angle of 60° between them due to the formation of a wurtzite monolayer at the interface. The valence band offset between GaP and Ge is 0.7?±?0.1?eV as determined from the valence band onsets and from Kraut's method. A band alignment diagram for GaP/Ge/GeOx is also constructed which can be used to design monolithic optoelectronic integrated circuits.

  13. X-ray emission from the most luminous z>4 Palomar Digital Sky Survey Quasars: the Chandra view

    E-Print Network [OSTI]

    C. Vignali; W. N. Brandt; D. P. Schneider; G. P. Garmire; S. Kaspi

    2002-09-30T23:59:59.000Z

    We present the results obtained from exploratory Chandra observations of nine high-redshift (z=4.09-4.51) quasars, selected from among the optically brightest Palomar Digital Sky Survey quasars known. Their broad-band spectral energy distributions are characterized, on average, by steeper alpha_ox values (=-1.81+/-0.03) than those of lower-redshift, lower-luminosity samples of quasars. We find a significant correlation between AB1450(1+z) magnitude and soft X-ray flux, suggesting that the engine powering the UV and X-ray emission is the same. The joint 2-30 keV rest-frame X-ray spectrum is well parameterized by a Gamma=2.0+/-0.2 power-law model with no evidence for intrinsic absorption (N_H<8.8 10^{21} cm^-2).

  14. Legendre polynomials and related functions

    E-Print Network [OSTI]

    Adams, Richard McGary

    1951-01-01T23:59:59.000Z

    )(h+3) "6ltRN. I Wj R K)! j& for ICI C I and tl svsn, q?(x) = ( ~f g $ "II f ~ (-I)" II-I)(n-))" (n-RII~I) (na)(IIit)- (aiak)j III] . H. g. . . (g g)X$ Q g K X y j IXI ) II -s-i ( ~ (n+&)(n+a) "(n+Xg) g I~BS (2h+i g ?Z? 2"N! 21+3) ahtrj. - an+2... cos &si g IP& (Cos e) QQ?I?(CoS e) D 0 H-0 op g (g?cos o e os?si toe) p?(cos e)) ds dp Aei Lff a (p (coo o)j sis s d e d s e (IB-k & due to the ox thogonality of the functione p (x) ~ ss Xhu 8 Similarly by multiplying (ig-I) by Sisi e Sie e...

  15. Development of Wind-and-React Bi-2212 Accelerator Magnet Technology

    SciTech Connect (OSTI)

    Godeke, A.; Cheng, D.; Dietderich, D. R.; English, C. D.; Felice, H.; Hannaford, C. R.; Prestemon, S. O.; Sabbi, G.; Scanlan, R. M.; Hikichi, Y.; Nishioka, J.; Hasegawa, T.

    2007-08-28T23:59:59.000Z

    We report on the progress in our R&D program, targeted to develop the technology for the application of Bi2Sr2CaCu2Ox (Bi-2212) in accelerator magnets. The program uses subscale coils, wound from insulated cables, to study suitable materials, heat treatment homogeneity, stability, and effects of magnetic field and thermal and electro-magnetic loads. We have addressed material and reaction related issues and report on the fabrication, heat treatment, and analysis of subscale Bi-2212 coils. Such coils can carry a current on the order of 5000 A and generate, in various support structures, magnetic fields from 2.6 to 9.9 T. Successful coils are therefore targeted towards a hybrid Nb3Sn-HTS magnet which will demonstrate the feasibility of Bi-2212 for accelerator magnets, and open a new magnetic field realm, beyond what is achievable with Nb3Sn.

  16. Development of Wind-and-React Bi-2212 Accelerator MagnetTechnology

    SciTech Connect (OSTI)

    Godeke, A.; Cheng, D.; Dietderich, D.R.; English, C.D.; Felice,H.; Hannaford, C.R.; Prestemon, S.O.; Sabbi, G.; Scanlan, R.M.; Hikichi,Y.; Nishioka, J.; Hasegawa, T.

    2007-08-28T23:59:59.000Z

    We report on the progress in our R&D program, targetedto develop the technology for the application of Bi2Sr2CaCu2Ox (Bi-2212)in accelerator magnets. The program uses subscale coils, wound frominsulated cables, to study suitable materials, heat treatmenthomogeneity, stability, and effects ofmagnetic field and thermal andelectro-magnetic loads. We have addressed material and reaction relatedissues and report onthe fabrication, heat treatment, and analysis ofsubscale Bi-2212 coils. Such coils can carry a current on the order of5000 A and generate, in various support structures, magnetic fields from2.6 to 9.9 T. Successful coils are therefore targeted towards a hybridNb3Sn-HTS magnet which will demonstrate the feasibility of Bi-2212 foraccelerator magnets, and open a new magnetic field realm, beyond what isachievable with Nb3Sn.

  17. A critical study of the Boussinesq adaptation of Flamant's plane stress elasticity solution, utilizing the digital computer 

    E-Print Network [OSTI]

    Moritz, Burt Edwin

    1967-01-01T23:59:59.000Z

    the method developed in this thesis. Input of External Load First a load P is applied to a semi-infinite plane A-B (See Fig. 3-2) which extends downward. The stresses at points of interest, these being the points that will be insi, de...(TSCt XBCI(4)=H H COX(TBCI TBC(lll H H 5(H(TSC( vectlz& z. s+H s(N(rect '/SCI(31 5 0+H 5(tt(TeC( 78(lth)-2. 5 tt ~ )lttttsCI tle CONTI(DE Xl 0 COIIPI/4. 1 0 (6 H- 0)/15. Dx 0 Col)t I/4 I XI IXI OX I/2 ~ oo 89 11 I h 12 I 26 13 I 40 14=1 70 Tec...

  18. Gas delivery system and beamline studies for the test beam facility of the Collider Detector at Fermilab

    E-Print Network [OSTI]

    Franke, Henry Gerhart

    1987-01-01T23:59:59.000Z

    Prcport or?l tube chsabsrs ?'th catf?de pad readout ~ cint llstor Ge t II I lh k ~ s 0 5 as opop Io I tb ~ Te 1. 0 cm 1. 0 cm 0, 7s0. 7cm E. ds0. 6ae 1 Ox0. 7cm 1. 5st. oae 2 2 2 Huabe Oi E y e Abso bet 31 Pb Fe 15 Fa Pb Fa Abso be tl el ss 0.... the sacand for the hor iso?tel 12 angles 8 forvvard of 30' (endplug and forward calorimeters), gas proportional chambers with strip readout of resistive cathode pads and anode wire bunches are used, chosen because of economy, resistance to radiation...

  19. Investigations on the control of the sorghum midge: Contarinia sorghicola (Coquillett) by the use of insecticides and resistant varieties.

    E-Print Network [OSTI]

    Doering, George William

    1961-01-01T23:59:59.000Z

    'rr i)r I ja IIOeher~& Gne err J ~ jr ~ ~ninoo iox theix Iloiyfci ?u-;;eo ionc- anil caiticierm, ahe oritor c:choo ta C:-OIroee hie Qeepcet protitudo tc !-;abort ~?:otter ior hio conecic'I'tionG LC1p and KlaeiotellCO in thic' llrQJGCt nd alao to J... Q f oo. , rc EIP&cc9 eo 5 f free l r&oiv J &. !dr&no a Eio'Bavaria ool j I'I:o &fr&&&ol s, lfrg Ot t. Chc 9 ta ah- Or&'I Xeleta OX ho Oaoda CCX'e f QUIidy Con E O'-eotlP Do o11io ao aQ thc 1 don&9 ttr of tr! 6 o. Qoloo or&. "I, "vo a '. . Qi...

  20. An economic study of the grain sorghum industry

    E-Print Network [OSTI]

    Williamson, Marion Newton

    1939-01-01T23:59:59.000Z

    ~ This 51?sp is has?a os haelillge xa these sea?trios they aro kskportaat articles of hosea 41st, as& fee4s fer it@est?eh as4 pealtryo Ivory portico ef tho pl?lit ie ?sod is e~ %aye 5 The first pmsaseat iaire4?otiose of 5saia s?r&hess is tho Celt?4 St.... Dicdcsoa& Oraia ~aalu&uae Versus ~ra pbr ctteaicN Lambs ~ 884, ~ ~oxXse~ae 4Ioxas ~~eu terai Sapor i~en Statiou, Bullotia No. 599, p. 8, April, 1988. Naa. & pp. 8-9. 0 %. Sarburtoa, ~ Soa-~~her 8e ~ger n~as Uaited States De~i o! Agriculture, Parasrs Bu...

  1. Module Packaging Research and Reliability: Activities and Capabilities

    SciTech Connect (OSTI)

    McMahon, T. J.; delCueto, J.; Glick, S.; Jorgensen, G.; Kempe, M.; Pern, J.; Terwilliger, K.

    2005-11-01T23:59:59.000Z

    Our team activities are directed at improving PV module reliability by incorporating new, more effective, and less expensive packaging materials and techniques. New and existing materials or designs are evaluated before and during accelerated environmental exposure for the following properties: (1) Adhesion and cohesion: peel strength and lap shear. (2) Electrical conductivity: surface, bulk, interface and transients. (3) Water vapor transmission: solubility and diffusivity. (4) Accelerated weathering: ultraviolet, temperature, and damp heat tests. (5) Module and cell failure diagnostics: infrared imaging, individual cell shunt characterization, coring. (6) Fabrication improvements: SiOxNy barrier coatings and enhanced wet adhesion. (7) Numerical modeling: Moisture ingress/egress, module and cell performance, and cell-to-frame leakage current. (8) Rheological properties of polymer encapsulant and sheeting materials. Specific examples are described.

  2. Module Design, Materials, and Packaging Research Team: Activities and Capabilities

    SciTech Connect (OSTI)

    McMahon, T. J.; del Cueto, J.; Glick, S.; Jorgensen, G.; Kempe, M.; Kennedy, C.; Pern, J.; Terwilliger, K

    2005-01-01T23:59:59.000Z

    Our team activities are directed at improving PV module reliability by incorporating new, more effective, and less expensive packaging materials and techniques. New and existing materials or designs are evaluated before and during accelerated environmental exposure for the following properties: (1) Adhesion and cohesion: peel strength and lap shear. (2) Electrical conductivity: surface, bulk, interface and transients. (3) Water vapor transmission: solubility and diffusivity. (4) Accelerated weathering: ultraviolet, temperature, and damp heat tests. (5) Module and cell failure diagnostics: infrared imaging, individual cell shunt characterization, coring. (6) Fabrication improvements: SiOxNy barrier coatings and enhanced wet adhesion. (7) Numerical modeling: Moisture ingress/egress, module and cell performance, and cell-to-frame leakage current. (8) Rheological properties of polymer encapsulant and sheeting materials. Specific examples will be described.

  3. Development of a nomogram for prediction of down time in heavy equipment

    E-Print Network [OSTI]

    Chlebo, Steven Gallus

    1977-01-01T23:59:59.000Z

    , ''!!!!. ' ( 0 0 Ilc !Jce . oi: soIJn(J . ir~ -I he . ':: I, crial, dIJich 1' 0 be '. 'Ox'-' cc. ~ l t !Jas the (lie aov" nta""e of . ' I *', I! cos I diff" culI y 0i intel'piete Iion, ;no xcstx iction to relatively h Jrd materia1s. The 1 ? 10 soil code... 1;I a!c a roos ! t'I ve cont~ ' oc'ti on *0 l;!re !heavy QI!ui~ment 'r. 'ustr !. lt !rfjll allo, , 0!an;I. '="I'. . "!t 0 !err. ce 8, c'uan' r LerlvEI eva Lua i, ' 0 I or wovln time "o . =r r, I&r ore mo!cirr;;: heavIr invo "tm! c...

  4. Radar echo, Doppler Effect and Radar detection in the uniformly accelerated reference frame

    E-Print Network [OSTI]

    Bernhard Rothenstein; Stefan Popescu

    2006-09-14T23:59:59.000Z

    The uniformly accelerated reference frame described by Hamilton, Desloge and Philpott involves the observers who perform the hyperbolic motion with constant proper acceleration gi. They start to move from different distances measured from the origin O of the inertial reference frame K(XOY), along its OX axis with zero initial velocity. Equipped with clocks and light sources they are engaged with each other in Radar echo, Doppler Effect and Radar detection experiments. They are also engaged in the same experiments with an inertial observer at rest in K(XOY) and located at its origin O. We derive formulas that account for the experiments mentioned above. We study also the landing conditions of the accelerating observers on a uniformly moving platform.

  5. The Jefferson Lab Frozen Spin Target

    SciTech Connect (OSTI)

    Christopher Keith, James Brock, Christopher Carlin, Sara Comer, David Kashy, Josephine McAndrew, David Meekins, Eugene Pasyuk, Joshua Pierce, Mikell Seely

    2012-08-01T23:59:59.000Z

    A frozen spin polarized target, constructed at Jefferson Lab for use inside a large acceptance spectrometer, is described. The target has been utilized for photoproduction measurements with polarized tagged photons of both longitudinal and circular polarization. Protons in TEMPO-doped butanol were dynamically polarized to approximately 90% outside the spectrometer at 5 T and 200-300 mK. Photoproduction data were acquired with the target inside the spectrometer at a frozen-spin temperature of approximately 30 mK with the polarization maintained by a thin, superconducting coil installed inside the target cryostat. A 0.56 T solenoid was used for longitudinal target polarization and a 0.50 T dipole for transverse polarization. Spin relaxation times as high as 4000 hours were observed. We also report polarization results for deuterated propanediol doped with the trityl radical OX063.

  6. A consumer panel test of Texas fortified red grapefruit juice

    E-Print Network [OSTI]

    Price, Carter

    1959-01-01T23:59:59.000Z

    '. ?ET iCTEi TIAL FCF T"XAS FOFTIFIN R&X 38 67 CiiAPTER X B IHL IOGRAP HY AH '-'IX GiiAFEFRUIT JUICE CO', ~LUCIO". '. S. 74 80 Figure ', ''o. Page l. 2 ~ 3. Relationship between Index of Fading, Visual Color, and Lycopene and Carotene pie... of 1'58. Two taste . !-n. lo . !ere us?i' ? an oxf crt fin& non-evi srt taste 2! nel. The iix?ort fan?!1 ?nnioted ci' cix i?ricul+ur 3 an' ' ech!inicfll ollege of TeXaa SmplOyc . ;!!lc !lad OX?O"S" VO t&. at(~?" eX; erf enCe O"8 were Cap ?le Of' c...

  7. Thermal-mechanical Properties of Epoxy-impregnated Bi-2212/Ag Composite

    SciTech Connect (OSTI)

    Li, Pei; Wang, Yang; Godeke, Arno; Ye, Liyang; Flanagan, Gene; Shen, Tengming

    2014-11-26T23:59:59.000Z

    Knowledge of the thermal-mechanical properties of epoxy/superconductor/insulation composite is important for designing, fabricating, and operating epoxy impregnated high field superconducting magnets near their ultimate potentials. We report measurements of the modulus of elasticity, Poisson’s ratio, and the coefficient of thermal contraction of epoxy-impregnated composite made from the state-of-the-art powder-in-tube multifilamentary Ag/Bi2Sr2CaCu2Ox round wire at room temperature and cryogenic temperatures. Stress-strain curves of samples made from single-strand and Rutherford cables were tested under both monotonic and cyclic compressive loads, with single strands insulated using a thin TiO2 insulation coating and the Rutherford cable insulated with a braided ceramic sleeve.

  8. Comparison of growth texture in round Bi2212 and flat Bi2223 wires and its relation to high critical current density development

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

    Kametani, F.; Jiang, J.; Matras, M.; Abraimov, D.; Hellstrom, E. E.; Larbalestier, D. C.

    2015-02-10T23:59:59.000Z

    Why Bi?Sr?CaCu?Ox (Bi2212) allows high critical current density Jc in round wires rather than only in the anisotropic tape form demanded by all other high temperature superconductors is important for future magnet applications. Here we compare the local texture of state-of-the-art Bi2212 and Bi2223 ((Bi,Pb)?Sr?Ca?Cu?O??), finding that round wire Bi2212 generates a dominant a-axis growth texture that also enforces a local biaxial texture (FWHM more »perpendicular to the tape plane without any in-plane texture. Consistent with these observations, a marked, field-increasing, field-decreasing Jc(H) hysteresis characteristic of weak-linked systems appears in Bi2223 but is absent in Bi2212 round wire. Growth-induced texture on cooling from the melt step of the Bi2212 Jc optimization process appears to be the key step in generating this highly desirable microstructure.« less

  9. Performance of standard rate trickling filters at various depths

    E-Print Network [OSTI]

    Peralta-Rojas, Andres

    1955-01-01T23:59:59.000Z

    o ~ ~ ~ ~ o ~ e ~ ~ ~ ~ ~ ~ ~ e ~ ~ e e o 1 R8++&o ~ ~ ~ ~ ~ ~ e ~ o e ~ ~ ~ e o ~ ~ e e ~ ~ e e e e e e 8 Ills IAXQOC Xolo e o o e e ~ ~ e e e e ~ e o e e e ~ ~ o ~ e 5 HiStm'I. Cal and, Lite~eule GQ&%PJee o ~ ~ ooo ~ e e ~ ~ ~ ee ~ ?& EXPCPi...~o& ~oOgmwg Vol, Wxmo, Si ( ll) Sor x'ale i 0 i Hi snQ ?41 lex'y Pi Si Ai i FiwLge ~iaahis Rocik Piltox's~tt8$ova3. of organ '. exxaFlG of I 01Ui4e Ox'genie Ratter" ~ Seea~xL~4 MC=xctrial '~ asteax Vol, 25, xxo, "Ii 1955? (18) . e ~ause'axe P...

  10. An accounting system for the city of College Station

    E-Print Network [OSTI]

    Axley, Branch L

    1940-01-01T23:59:59.000Z

    Ag, roval aa to stela and oontsnt rsoomnsndsd: Esnd of Ds?artmsnt of Accountin and Btntlatios Sr noh L. Amis@ ~us% 1940 Suha444e4, 4o 4he PaeuL4p Ot 4he kgrloeleorel aeC Rsehsatoal Coll, ege of vaNea Psrliel. Fail. lhaea4 ef 4he fhguireaenee... shown bp OX' OF COEEEQE STATIC E~~XV~Z ESTXr;Xi. . SC mam@ Glaeeiiioation o i 'Lal. l A tnei Yem Da, e Eetima m DalatlQ8 ol Yeech Form No XX ths short of sooounte ~ Sinos fn~ expenditures oen hest he estimated hp s careful study of past...

  11. The effect of chemicals on coloring matter and odorous substances in cotton seed oil

    E-Print Network [OSTI]

    Lokras, Vinayak Narayan

    1925-01-01T23:59:59.000Z

    ~ xn, co hooch aothing of its @sloe ss B c104~ antex481 8f@ Wepe Cxe86iag ia hi+8 ofL5 bsxScsa 3nt the ismo~ of the yiexLt, beosaoe of its ~ gxse me~ fast, cmi the os1tivntioa o the oottoeyyXsat ~ thxoaghoat s ei4e geegxnyhioaX ace? Tho seed... phenolyht~ein as an indicator till a yaxmanent change in, ths color is ohtaineda 'The percentage of free fatty acMs is reported. in texme of oleio acid, ClyHggCOOH vrhich hae a molecular weight ox BSHED 10 ~ The oil is res~ for refiningo The batch of en...

  12. A resonance-fluorescence measurement of the lifetime of the 1.013 MeV level in ²?Al using Compton-scattered gamma rays

    E-Print Network [OSTI]

    Peticolas, John Davis

    1967-01-01T23:59:59.000Z

    :; 0"". ;. ;. i F V. l'i~ 'i:1. '! VR'-'"" 6-" 8 4 g / 5 Q3': 86 f: 4" ""'8 t:!" ~ %" '-" 8 Z ' '!'. :. ~', l (' -'&);; ", y ge & p g ja ~y-. g~~~)", $y P tt". "I i!J ':ii:itS S !" QSC ", '*O' "" OI ts'". PGt'I "t f f S!. S i C h ' CO ISDVCS SVO... "88888 f t)' O 888 L&SSTA 84 Eb8 81881K. "li9 SOS' 898188 88818 27 ' !i888888 O S8i85 Gf EKQ CQPPSX COKiP COD 8C8 8 88. f8~8 888l8 g;1. 25 RSS88888 i 8HG 818 CS 548 88888188 Of h8 18C3 i. SiSi 88tl 08 CSOSLk~S P~GKKk9 X'BJS fOX' 548 Sj. QZ18f"m SOC1...

  13. Broad band energy distribution of ROSAT detected quasars II: Radio-quiet objects

    E-Print Network [OSTI]

    W. Yuan; W. Brinkmann; J. Siebert; W. Voges

    1998-05-04T23:59:59.000Z

    A database of radio-quiet quasars detected with ROSAT is presented containing 846 quasars seen in the All-Sky Survey and/or in pointed PSPC observations. About 70% of the objects have been detected in X-rays for the first time. We present the soft X-ray fluxes and spectra, if available. Using an optically selected subsample compiled from this database, we study the broad band properties of radio-quiet quasars with high statistical significance. We confirm that radio-quiet quasars have in general steeper soft X-ray spectra than radio-loud. The spectral differences persist to high redshifts. A spectral flattening with increasing redshift is confirmed up to redshift around 2, beyond which the spectral slopes seem to be independent of redshift. The spectral slopes of the ROSAT radio-quiet quasars at z>2.5 are consistent with those found for nearby quasars in the medium energy band (2-10keV), implying that the X-ray spectral evolution is not important. We show that there is, in a statistical sense, little or no excess absorption for most of the radio-quiet objects at z>2. The existence of a correlation between the X-ray luminosity and the luminosity at 2500A is confirmed. Individual objects show a large scatter from this correlation. The X-ray loudness alpha_ox appears to be independent of z, but the analyses indicate a slight increase of alpha_ox with optical luminosity. However, this behavior is likely not caused by physical properties inherent to the quasars but is the result of the intrinsic dispersion. Finally, we find a small fraction of objects which appear to be relatively `X-ray quiet' compared to the bulk of the other quasars.

  14. The X-ray Properties of the Most-Luminous Quasars from the Sloan Digital Sky Survey

    E-Print Network [OSTI]

    D. W. Just; W. N. Brandt; O. Shemmer; A. T. Steffen; D. P. Schneider; G. Chartas; G. P. Garmire

    2007-05-21T23:59:59.000Z

    Utilizing 21 new Chandra observations as well as archival Chandra, ROSAT, and XMM-Newton data, we study the X-ray properties of a representative sample of 59 of the most optically luminous quasars in the Universe (M_i~~-29.3 to -30.2) spanning a redshift range of z~~1.5-4.5. Our full sample consists of 32 quasars from the Sloan Digital Sky Survey (SDSS) Data Release 3 (DR3) quasar catalog, two additional objects in the DR3 area that were missed by the SDSS selection criteria, and 25 comparably luminous quasars at z>~4. This is the largest X-ray study of such luminous quasars to date. By jointly fitting the X-ray spectra of our sample quasars, excluding radio-loud and broad absorption line (BAL) objects, we find a mean X-ray power-law photon index of Gamma=1.92^{+0.09}_{-0.08} and constrain any neutral intrinsic absorbing material to have a mean column density of N_Hluminous quasars. Our sample, excluding radio-loud and BAL quasars, has a mean X-ray-to-optical spectral slope of a_ox=-1.80+/-0.02, as well as no significant evolution of a_ox with redshift. We also comment upon the X-ray properties of a number of notable quasars, including an X-ray weak quasar with several strong narrow absorption-line systems, a mildly radio-loud BAL quasar, and a well-studied gravitationally lensed quasar.

  15. A Chandra Survey of Broad Absorption Line Quasars

    E-Print Network [OSTI]

    Paul J. Green; Thomas L. Aldcroft; Smita Mathur; Belinda J. Wilkes; Martin Elvis

    2001-05-21T23:59:59.000Z

    We have carried out a survey with the Chandra X-ray Observatory of a sample of 10 optically bright broad absorption line (BAL) QSOs. Eight out of ten sources are detected. The 6 brightest X-ray sources have only high ionization BALs (hiBALs), while the 4 faintest all show low ionization BALs (loBALs). We perform a combined spectral fit for hiBAL QSOs to determine the mean spectral parameters of this sample. We derive an underlying best-fit power-law slope Gamma=1.8+/-0.35, consistent with the mean slope for radio-quiet quasars from ASCA, but BALQSOs require a (restframe) absorbing column of 6.5e22, with a partial covering fraction of 80%. Removing the absorption component from our best-fit spectral model yields a range of alphaOX from 1.55 to 2.28. All 6 hiBAL QSOs have de-absorbed X-ray emission consistent with non-BAL QSOs of similar luminosity. The spectral energy distributions of the hiBAL QSOs - both the underlying power-law slope and alphaOX provide the first conclusive evidence that BALQSOs have appeared to be X-ray weak because of intrinsic absorption, and that their underlying emission is consistent with non-BAL QSOs. By contrast, removal of the best-fit absorption column detected in the hiBAL QSOs still leaves the 4 loBAL QSOs as unusually X-ray faint for their optical luminosities.

  16. Plate-Based Fuel Processing System Final Report

    SciTech Connect (OSTI)

    Carlos Faz; Helen Liu; Jacques Nicole; David Yee

    2005-12-22T23:59:59.000Z

    On-board reforming of liquid fuels into hydrogen is an enabling technology that could accelerate consumer usage of fuel cell powered vehicles. The technology would leverage the convenience of the existing gasoline fueling infrastructure while taking advantage of the fuel cell efficiency and low emissions. Commercial acceptance of on-board reforming faces several obstacles that include: (1) startup time, (2) transient response, and (3) system complexity (size, weight and cost). These obstacles are being addressed in a variety of projects through development, integration and optimization of existing fuel processing system designs. In this project, CESI investigated steam reforming (SR), water-gas-shift (WGS) and preferential oxidation (PrOx) catalysts while developing plate reactor designs and hardware where the catalytic function is integrated into a primary surface heat exchanger. The plate reactor approach has several advantages. The separation of the reforming and combustion streams permits the reforming reaction to be conducted at a higher pressure than the combustion reaction, thereby avoiding costly gas compression for combustion. The separation of the two streams also prevents the dilution of the reformate stream by the combustion air. The advantages of the plate reactor are not limited to steam reforming applications. In a WGS or PrOx reaction, the non-catalytic side of the plate would act as a heat exchanger to remove the heat generated by the exothermic WGS or PrOx reactions. This would maintain the catalyst under nearly isothermal conditions whereby the catalyst would operate at its optimal temperature. Furthermore, the plate design approach results in a low pressure drop, rapid transient capable and attrition-resistant reactor. These qualities are valued in any application, be it on-board or stationary fuel processing, since they reduce parasitic losses, increase over-all system efficiency and help perpetuate catalyst durability. In this program, CESI took the initial steam reforming plate-reactor concept and advanced it towards an integrated fuel processing system. A substantial amount of modeling was performed to guide the catalyst development and prototype hardware design and fabrication efforts. The plate-reactor mechanical design was studied in detail to establish design guidelines which would help the plate reactor survive the stresses of repeated thermal cycles (from start-ups and shut-downs). Integrated system performance modeling was performed to predict system efficiencies and determine the parameters with the most significant impact on efficiency. In conjunction with the modeling effort, a significant effort was directed towards catalyst development. CESI developed a highly active, sulfur tolerant, coke resistant, precious metal based reforming catalyst. CESI also developed its own non-precious metal based water-gas shift catalyst and demonstrated the catalysts durability over several thousands of hours of testing. CESI also developed a unique preferential oxidation catalyst capable of reducing 1% CO to < 10 ppm CO over a 35 C operating window through a single pass plate-based reactor. Finally, CESI combined the modeling results and steam reforming catalyst development efforts into prototype hardware. The first generation 3kW(e) prototype was fabricated from existing heat-exchanger plates to expedite the fabrication process. This prototype demonstrated steady state operation ranging from 5 to 100% load conditions. The prototype also demonstrated a 20:1 turndown ratio, 10:1 load transient operation and rapid start-up capability.

  17. The Superconductors That Magnets Really Want: What Stands in the Way?

    ScienceCinema (OSTI)

    David Larbalestier

    2010-01-08T23:59:59.000Z

    There are over 5000 superconducting materials but only about 5 have ever been useful for applications in magnets, while HEP, which has been so vital for the development of superconducting magnet technology has made virtually every magnet out of just one, the simple bcc alloy Nb-Ti with Tc of 9 K and upper critical field ~ 14T (at 2K). Significant demonstrations of the capability of the brittle intermetallic Nb3Sn have shown that fields of more than 15 T can be generated in dipole form. But Nb-Ti and Nb3Sn are staid, conventional superconductors, far from the cutting edge of superconducting science research where cuprates like YBa2Cu3O7-x and Bi2Sr2CaCu2Ox remain at the scientific forefront and in 2008 were joined by the recently discovered Fe-As pnictide superconductors. What could it mean to have materials for magnets with 10 times the Tc of Nb-Ti (90-120 K) and 3 or more times the critical field (100-240 T)? One enormous barrier is that higher Tc so far always means more complexity and a more localized superconducting interaction which is sensitive to local loss of superconductivity. The issue that has made the cuprate high temperature superconductors so hard to apply is that grain boundaries which form a 3D network in any practical wire form, easily acquire degraded superconducting properties. But conductors can now be made with extreme texture so that grain boundaries are minimized. Moreover almost practical conductors of Bi2Sr2CaCu2Ox and YBa2Cu3O7-x are now are in production and in late 2008 we were, at the Magnet Lab, able to make small solenoids operating at high current density in fields of 32 and almost 34 T respectively. Within the HEP community, there is enthusiasm to embrace HTS conductors for new very high field machines that could, like the Muon Collider, use fields of 30-50 T. In my talk I would like to explore the underlying science controlling such potential applications.

  18. The Superconductors That Magnets Really Want: What Stands in the Way?

    SciTech Connect (OSTI)

    David Larbalestier

    2009-02-25T23:59:59.000Z

    There are over 5000 superconducting materials but only about 5 have ever been useful for applications in magnets, while HEP, which has been so vital for the development of superconducting magnet technology has made virtually every magnet out of just one, the simple bcc alloy Nb-Ti with Tc of 9 K and upper critical field ~ 14T (at 2K). Significant demonstrations of the capability of the brittle intermetallic Nb3Sn have shown that fields of more than 15 T can be generated in dipole form. But Nb-Ti and Nb3Sn are staid, conventional superconductors, far from the cutting edge of superconducting science research where cuprates like YBa2Cu3O7-x and Bi2Sr2CaCu2Ox remain at the scientific forefront and in 2008 were joined by the recently discovered Fe-As pnictide superconductors. What could it mean to have materials for magnets with 10 times the Tc of Nb-Ti (90-120 K) and 3 or more times the critical field (100-240 T)? One enormous barrier is that higher Tc so far always means more complexity and a more localized superconducting interaction which is sensitive to local loss of superconductivity. The issue that has made the cuprate high temperature superconductors so hard to apply is that grain boundaries which form a 3D network in any practical wire form, easily acquire degraded superconducting properties. But conductors can now be made with extreme texture so that grain boundaries are minimized. Moreover almost practical conductors of Bi2Sr2CaCu2Ox and YBa2Cu3O7-x are now are in production and in late 2008 we were, at the Magnet Lab, able to make small solenoids operating at high current density in fields of 32 and almost 34 T respectively. Within the HEP community, there is enthusiasm to embrace HTS conductors for new very high field machines that could, like the Muon Collider, use fields of 30-50 T. In my talk I would like to explore the underlying science controlling such potential applications.

  19. The Superconductors that Magnets Really Want: What Stands in the Way? (Superconductors for Accelerator Use: What Next and How Close is the Ideal Conductor?)

    SciTech Connect (OSTI)

    Larbalestier, David (National High Magnetic Field Laboratory and Florida State University) [National High Magnetic Field Laboratory and Florida State University

    2009-02-25T23:59:59.000Z

    There are over 5000 superconducting materials but only about 5 have ever been useful for applications in magnets, while HEP, which has been so vital for the development of superconducting magnet technology has made virtually every magnet out of just one, the simple bcc alloy Nb-Ti with Tc of 9 K and upper critical field {approx} 14T (at 2K). Significant demonstrations of the capability of the brittle intermetallic Nb3Sn have shown that fields of more than 15 T can be generated in dipole form. But Nb-Ti and Nb3Sn are staid, conventional superconductors, far from the cutting edge of superconducting science research where cuprates like YBa2Cu3O7-x and Bi2Sr2CaCu2Ox remain at the scientific forefront and in 2008 were joined by the recently discovered Fe-As pnictide superconductors. What could it mean to have materials for magnets with 10 times the Tc of Nb-Ti (90-120 K) and 3 or more times the critical field (100-240 T)? One enormous barrier is that higher Tc so far always means more complexity and a more localized superconducting interaction which is sensitive to local loss of superconductivity. The issue that has made the cuprate high temperature superconductors so hard to apply is that grain boundaries which form a 3D network in any practical wire form, easily acquire degraded superconducting properties. But conductors can now be made with extreme texture so that grain boundaries are minimized. Moreover almost practical conductors of Bi2Sr2CaCu2Ox and YBa2Cu3O7-x are now are in production and in late 2008 we were, at the Magnet Lab, able to make small solenoids operating at high current density in fields of 32 and almost 34 T respectively. Within the HEP community, there is enthusiasm to embrace HTS conductors for new very high field machines that could, like the Muon Collider, use fields of 30-50 T. In my talk I would like to explore the underlying science controlling such potential applications.

  20. Hydroxylation of p-substituted phenols by tyrosinase: Further insight into the mechanism of tyrosinase activity

    SciTech Connect (OSTI)

    Munoz-Munoz, Jose Luis [GENZ - Grupo de Investigacion Enzimologia, Departamento de Bioquimica y Biologia Molecular-A, Facultad de Biologia, Campus Internacional de Excelencia Campus Mare Nostrum, Universidad de Murcia, E-30100 Espinardo, Murcia (Spain)] [GENZ - Grupo de Investigacion Enzimologia, Departamento de Bioquimica y Biologia Molecular-A, Facultad de Biologia, Campus Internacional de Excelencia Campus Mare Nostrum, Universidad de Murcia, E-30100 Espinardo, Murcia (Spain); Berna, Jose [Grupo de Quimica Organica Sintetica, Departamento de Quimica Organica, Facultad de Quimica Campus Internacional de Excelencia Campus Mare Nostrum, Universidad de Murcia (Spain)] [Grupo de Quimica Organica Sintetica, Departamento de Quimica Organica, Facultad de Quimica Campus Internacional de Excelencia Campus Mare Nostrum, Universidad de Murcia (Spain); Garcia-Molina, Maria del Mar; Garcia-Molina, Francisco [GENZ - Grupo de Investigacion Enzimologia, Departamento de Bioquimica y Biologia Molecular-A, Facultad de Biologia, Campus Internacional de Excelencia Campus Mare Nostrum, Universidad de Murcia, E-30100 Espinardo, Murcia (Spain)] [GENZ - Grupo de Investigacion Enzimologia, Departamento de Bioquimica y Biologia Molecular-A, Facultad de Biologia, Campus Internacional de Excelencia Campus Mare Nostrum, Universidad de Murcia, E-30100 Espinardo, Murcia (Spain); Garcia-Ruiz, Pedro Antonio [QCPAI - Grupo de Quimica de Carbohidratos, Polimeros y Aditivos Industriales, Departamento de Quimica Organica, Facultad de Quimica Campus Internacional de Excelencia Campus Mare Nostrum, Universidad de Murcia (Spain)] [QCPAI - Grupo de Quimica de Carbohidratos, Polimeros y Aditivos Industriales, Departamento de Quimica Organica, Facultad de Quimica Campus Internacional de Excelencia Campus Mare Nostrum, Universidad de Murcia (Spain); Varon, Ramon [Departamento de Quimica-Fisica, Escuela de Ingenieros Industriales de Albacete, Universidad de Castilla la Mancha, Avda. Espana s/n. Campus Universitario, E-02071 Albacete (Spain)] [Departamento de Quimica-Fisica, Escuela de Ingenieros Industriales de Albacete, Universidad de Castilla la Mancha, Avda. Espana s/n. Campus Universitario, E-02071 Albacete (Spain); and others

    2012-07-27T23:59:59.000Z

    Highlights: Black-Right-Pointing-Pointer The action the copper complexes and tyrosinase on phenols is equivalent. Black-Right-Pointing-Pointer Isotope effect showed that nucleophilic attack to copper atom may be the slower step. Black-Right-Pointing-Pointer The value of {rho} (Hammett constant) supports an electrophilic aromatic substitution. Black-Right-Pointing-Pointer Data obtained in steady state pH 7 conditions support the mechanism of Scheme 1SM. -- Abstract: A study of the monophenolase activity of tyrosinase by measuring the steady state rate with a group of p-substituted monophenols provides the following kinetic information: k{sub cat}{sup m} and the Michaelis constant, K{sub M}{sup m}. Analysis of these data taking into account chemical shifts of the carbon atom supporting the hydroxyl group ({delta}) and {sigma}{sub p}{sup +}, enables a mechanism to be proposed for the transformation of monophenols into o-diphenols, in which the first step is a nucleophilic attack on the copper atom on the form E{sub ox} (attack of the oxygen of the hydroxyl group of C-1 on the copper atom) followed by an electrophilic attack (attack of the hydroperoxide group on the ortho position with respect to the hydroxyl group of the benzene ring, electrophilic aromatic substitution with a reaction constant {rho} of -1.75). These steps show the same dependency on the electronic effect of the substituent groups in C-4. Furthermore, a study of a solvent deuterium isotope effect on the oxidation of monophenols by tyrosinase points to an appreciable isotopic effect. In a proton inventory study with a series of p-substituted phenols, the representation of k{sub cat}{sup f{sub n}}/k{sub cat}{sup f{sub 0}} against n (atom fractions of deuterium), where k{sub cat}{sup f{sub n}} is the catalytic constant for a molar fraction of deuterium (n) and k{sub cat}{sup f{sub 0}} is the corresponding kinetic parameter in a water solution, was linear for all substrates. These results indicate that only one of the proton transfer processes from the hydroxyl groups involved the catalytic cycle is responsible for the isotope effects. We suggest that this step is the proton transfer from the hydroxyl group of C-1 to the peroxide of the oxytyrosinase form (E{sub ox}). After the nucleophilic attack, the incorporation of the oxygen in the benzene ring occurs by means of an electrophilic aromatic substitution mechanism in which there is no isotopic effect.

  1. An iterative technique for approximating solutions to certain differential equations by truncated Legendre series

    E-Print Network [OSTI]

    Heckrotte, Robert Platt

    1964-01-01T23:59:59.000Z

    OF THE I ECKNGRK PO( YNONIAL SUBROUTINE DIFEQ DINENSI 0}{ A(20o20) oX(20 ) oP(20 ~ 20) ~ C{20) oW{ 20) C 0)(NON A o X o P o C o N o K o ){ o NUN DINENS ION U(20) o V{20 } o Y(20) o2(20) oD {20) CONNON U o V o Y o Z o D o t AURA DINENS ION 0 (10) QQ...~loN 36 2{ 1)~tYt I)~fo){o(lo/Xt 1)~SINF{X{1 ))i'COSF(X( I)) I ~ ) QQ TO 26 4 DQ 38 foo)oN 3S Z(1 ) ~I o+ 1 Y( I )~I ~ )442 CQ TO 26 5 DO 40 I~I ~ N 40 Z{ I ) a(~1 or'4 ~ )4SQRTF {4o (Y{ I )+1 ~ )4{}2) QQ TO 26 6 DO 42 l&io6 42 Zt I )&X( I )+Yt I...

  2. Measurements of Eh and pH in Compacted MX-80 Bentonite

    SciTech Connect (OSTI)

    Carlsson, Torbjoern; Muurinen, Arto [VTT Technical Research Centre of Finland, Otakaari 3A, Espoo, FI-02044 VTT (Finland)

    2007-07-01T23:59:59.000Z

    The low-content free water and high swelling pressure in compacted bentonite, planned to be used as a buffer in nuclear waste repositories, create adverse conditions for direct measurements of the chemical conditions. This paper presents laboratory results from online measurements with Eh and pH electrodes in water-saturated compacted MX-80 bentonite. The Eh was measured with Au and Pt wires as electrodes, while the pH was determined with IrOx electrodes. The latter were prepared in accordance with the method by Yao et al. [1]. The measurements were carried out in two types of cells: 'squeezing cells' and 'diffusion cells'. The squeezing cell excludes almost completely all chemical interactions between the sample and the surrounding environment outside the cell. The diffusion cell, on the other hand, contains a sample that stays in contact with an external solution and therefore allows following of the physico-chemical interaction between the sample and the external solution. The measuring electrodes were positioned inside the cell in the compacted bentonite, while the reference electrode was positioned outside the cell. (authors)

  3. Pseudo-capacitor device for aqueous electrolytes

    DOE Patents [OSTI]

    Prakash, J.; Thackeray, M.M.; Dees, D.W.; Vissers, D.R.; Myles, K.M.

    1998-11-24T23:59:59.000Z

    A pseudo-capacitor having a high energy storage capacity develops a double layer capacitance as well as a Faradaic or battery-like redox reaction, also referred to as pseudo-capacitance. The Faradaic reaction gives rise to a capacitance much greater than that of the typical ruthenate oxide ultracapacitor which develops only charge separation-based double layer capacitance. The capacitor employs a lead and/or bismuth/ruthenate and/or iridium system having the formula A{sub 2}[B{sub 2{minus}x}Pb{sub x}]O{sub 7{minus}y}, where A=Pb, Bi, and B=Ru, Ir, and O{<=}1 and O

  4. A novel nanostructured composite formed by interaction of copper octa(3-aminopropyl)octasilsesquioxane with azide ligands: Preparation, characterization and a voltammetric application

    SciTech Connect (OSTI)

    Ribeiro do Carmo, Devaney, E-mail: docarmo@dfq.feis.unesp.br [Faculdade de Engenharia de Ilha Solteira UNESP - Univ Estadual Paulista, Departamento de Fisica e Quimica, Av. Brasil Centro, 56 CEP 15385-000, Ilha Solteira, SP (Brazil); Paim, Leonardo Lataro [Instituto de Quimica de Araraquara UNESP - Univ Estadual Paulista, Rua Francisco Degni s/n, CEP 14801-970, Araraquara, SP (Brazil)] [Instituto de Quimica de Araraquara UNESP - Univ Estadual Paulista, Rua Francisco Degni s/n, CEP 14801-970, Araraquara, SP (Brazil); Metzker, Gustavo [Instituto de Quimica de Sao Carlos, Universidade de Sao Paulo, Av. Trabalhador Sao-carlense, 400, 13566-590 Sao Carlos, SP (Brazil)] [Instituto de Quimica de Sao Carlos, Universidade de Sao Paulo, Av. Trabalhador Sao-carlense, 400, 13566-590 Sao Carlos, SP (Brazil); Dias Filho, Newton Luiz [Faculdade de Engenharia de Ilha Solteira UNESP - Univ Estadual Paulista, Departamento de Fisica e Quimica, Av. Brasil Centro, 56 CEP 15385-000, Ilha Solteira, SP (Brazil)] [Faculdade de Engenharia de Ilha Solteira UNESP - Univ Estadual Paulista, Departamento de Fisica e Quimica, Av. Brasil Centro, 56 CEP 15385-000, Ilha Solteira, SP (Brazil); Stradiotto, Nelson Ramos [Instituto de Quimica de Araraquara UNESP - Univ Estadual Paulista, Rua Francisco Degni s/n, CEP 14801-970, Araraquara, SP (Brazil)] [Instituto de Quimica de Araraquara UNESP - Univ Estadual Paulista, Rua Francisco Degni s/n, CEP 14801-970, Araraquara, SP (Brazil)

    2010-09-15T23:59:59.000Z

    This study presents the preparation, characterization and application of copper octa(3-aminopropyl)octasilsesquioxane following its subsequent reaction with azide ions (ASCA). The precursor (AC) and the novel compound (ASCA) were characterized by Fourier transform infrared spectra (FTIR), nuclear magnetic resonance (NMR), electron paramagnetic resonance (EPR), scanning electronic microscopy (SEM), X-ray diffraction (XRD), Thermogravimetric analyses and voltammetric technique. The cyclic voltammogram of the modified graphite paste electrode with ASCA (GPE-ASCA), showed one redox couple with formal potential (E{sub 1/2}{sup ox}) = 0.30 V and an irreversible process at 1.1 V (vs. Ag/AgCl; NaCl 1.0 M; v=20mVs{sup -1}). The material is very sensitive to nitrite concentrations. The modified graphite paste electrode (GPE-ASCA) gives a linear range from 1.0 x 10{sup -4} to 4.0 x 10{sup -3} mol L{sup -1} for the determination of nitrite, with a detection limit of 2.1 x 10{sup -4} mol L{sup -1} and the amperometric sensitivity of 8.04 mA/mol L{sup -1}.

  5. Oxynitride Thin Film Barriers for PV Packaging

    SciTech Connect (OSTI)

    Glick, S. H.; delCueto, J. A.; Terwilliger, K. M.; Jorgensen, G. J.; Pankow, J. W.; Keyes, B. M.; Gedvilas, L. M.; Pern, F. J.

    2005-11-01T23:59:59.000Z

    Dielectric thin-film barrier and adhesion-promoting layers consisting of silicon oxynitride materials (SiOxNy, with various stoichiometry) were investigated. For process development, films were applied to glass (TCO, conductive SnO2:F; or soda-lime), polymer (PET, polyethylene terephthalate), aluminized soda-lime glass, or PV cell (a-Si, CIGS) substrates. Design strategy employed de-minimus hazard criteria to facilitate industrial adoption and reduce implementation costs for PV manufacturers or suppliers. A restricted process window was explored using dilute compressed gases (3% silane, 14% nitrous oxide, 23% oxygen) in nitrogen (or former mixtures, and 11.45% oxygen mix in helium and/or 99.999% helium dilution) with a worst-case flammable and non-corrosive hazard classification. Method employed low radio frequency (RF) power, less than or equal to 3 milliwatts per cm2, and low substrate temperatures, less than or equal to 100 deg C, over deposition areas less than or equal to 1000 cm2. Select material properties for barrier film thickness (profilometer), composition (XPS/FTIR), optical (refractive index, %T and %R), mechanical peel strength and WVTR barrier performance are presented.

  6. Biochemistry of ethylene in plants and other problems related to leaf abscission 

    E-Print Network [OSTI]

    Herrero, Fay Alberto

    1959-01-01T23:59:59.000Z

    L IBRARY * & M COLLEGE OF TEXAS *&MCOLE&GFTX MA LFOXSLwL &w eSrwFG rwa MFOLT eTM*SLEG TLSrFLa FM SLrA r*GC&GG&Mw co ArX rS*LTFM OLTTLTM r adiing,t,dmh Gscld,,nv ,m ,?n ?gtvst,n G??mm? m? ,?n r?gd?s?,sgt? thv En??thd?t? Cm??n?n m? Fn?ti dh... ?tg,dt? ?s??d??lnh, m? ,?n gn?sdgnlnh,i ?mg ,?n vn?gnn m? aMCFMT MA eO&SMGMeOX ?thstgo ???? Et?mg Gsc?n?,? e?th, e?oidm?m?o *&MCOLE&GFTX MA LFOXSLwL &w eSrwFG rwa MFOLT eTM*SLEG TLSrFLa FM SLrA r*GC&GG&Mw r adiing,t,dmh co ArX rS*LTFM OLTTLTM...

  7. Polyacrylamide medium for the electrophoretic separation of biomolecules

    DOE Patents [OSTI]

    Madabhushi, Ramakrishna S.; Gammon, Stuart A.

    2003-11-11T23:59:59.000Z

    A polyacryalmide medium for the electrophoretic separation of biomolecules. The polyacryalmide medium comprises high molecular weight polyacrylamides (PAAm) having a viscosity average molecular weight (M.sub.v) of about 675-725 kDa were synthesized by conventional red-ox polymerization technique. Using this separation medium, capillary electrophoresis of BigDye DNA sequencing standard was performed. A single base resolution of .about.725 bases was achieved in .about.60 minute in a non-covalently coated capillary of 50 .mu.m i.d., 40 cm effective length, and a filed of 160 V/cm at 40.degree. C. The resolution achieved with this formulation to separate DNA under identical conditions is much superior (725 bases vs. 625 bases) and faster (60 min. vs. 75 min.) to the commercially available PAAm, such as supplied by Amersham. The formulation method employed here to synthesize PAAm is straight-forward, simple and does not require cumbersome methods such as emulsion polymerizaiton in order to achieve very high molecular weights. Also, the formulation here does not require separation of PAAm from the reaction mixture prior to reconstituting the polymer to a final concentration. Furthermore, the formulation here is prepared from a single average mol. wt. PAAm as opposed to the mixture of two different average mo. wt. PAAm previously required to achieve high resolution.

  8. Empirical links between XRB and AGN accretion using the complete z < 0.4 spectroscopic CSC/SDSS catalog

    SciTech Connect (OSTI)

    Trichas, Markos [EADS Astrium, Gunnels Wood Road, Stevenage, Hertfordshire SG1 2AS (United Kingdom); Green, Paul J.; Aldcroft, Tom; Sobolewska, Malgosia; Kim, Dong-Woo [Harvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138 (United States); Constantin, Anca [Department of Physics and Astronomy, James Madison University, PHCH, Harrisonburg, VA 22807 (United States); Kalfountzou, Eleni [Center for Astrophysics, Science and Technology Research Institute, University of Hertfordshire, Hatfield AL10 9AB (United Kingdom); Hyde, Ashley K. [Astrophysics Group, Imperial College London, London SW7 2AZ (United Kingdom); Zhou, Hongyan [Center for Astrophysics, University of Science and Technology of China, Hefei 230026 (China); Haggard, Daryl [Center for Interdisciplinary Exploration and Research in Astrophysics, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208 (United States); Kelly, Brandon C., E-mail: markos.trichas@astrium.eads.net [Department of Physics, Broida Hall, University of California, Santa Barbara, CA 93107 (United States)

    2013-12-01T23:59:59.000Z

    Striking similarities have been seen between accretion signatures of Galactic X-ray binary (XRB) systems and active galactic nuclei (AGNs). XRB spectral states show a V-shaped correlation between X-ray spectral hardness and Eddington ratio as they vary, and some AGN samples reveal a similar trend, implying analogous processes at vastly larger masses and timescales. To further investigate the analogies, we have matched 617 sources from the Chandra Source Catalog to Sloan Digital Sky Survey spectroscopy, and uniformly measured both X-ray and optical spectral characteristics across a broad range of AGN and galaxy types. We provide useful tabulations of X-ray spectral slope for broad- and narrow-line AGNs, star-forming and passive galaxies, and composite systems, also updating relationships between optical (H? and [O III]) line emission and X-ray luminosity. We further fit broadband spectral energy distributions with a variety of templates to estimate bolometric luminosity. Our results confirm a significant trend in AGNs between X-ray spectral hardness and Eddington ratio expressed in X-ray luminosity, albeit with significant dispersion. The trend is not significant when expressed in the full bolometric or template-estimated AGN luminosity. We also confirm a relationship between the X-ray/optical spectral slope ?{sub ox} and Eddington ratio, but it may not follow the trend predicted by analogy with XRB accretion states.

  9. The Relation of the Phosphoric Acid of the Soil to Pot Experiments.

    E-Print Network [OSTI]

    Fraps, G. S. (George Stronach)

    1920-01-01T23:59:59.000Z

    .6 62.4 56.1 67.2 50.0 Phosphoric Ac~d per Million of soil 3.9 6.0 9.9 17.6 12.5 KN Total gm. 16.9 28.8 33.1 57.2 45.4 Phos horic ~ciBper crop gm. .0178 .0323 .0384 .OX01 .0539 KN per crop gm. 8.5 14.4 16.6 28.6 22....87 17.36 15.38 11.92 18.97 31.01 31.75 22.12 Crop No. 2-Sorghum KN.. ............................. 7.71 9.99 11.17 11.86 11.25 8.23 14.14 26.21 18.98 20.18 Crop No. 3-Corn KN. ................................. 9.39 6.60 12.60 11.01 10.59 5.03 10...

  10. On the origin of the C IV Baldwin effect in AGN

    E-Print Network [OSTI]

    Alexei Baskin; Ari Laor

    2004-03-16T23:59:59.000Z

    The origin of the luminosity dependence of the equivalent width (EW) of broad emission lines in AGN (the Baldwin effect) is not firmly established yet. We explore this question for the broad C IV \\lambda 1549 line using the Boroson & Green sample of the 87 z < 0.5 Bright Quasar Survey (BQS) quasars. Useful UV spectra of the C IV region are available for 81 of the objects, which are used to explore the dependence of the C IV EW on various emission properties. We confirm earlier results on the strong correlations of the C IV EW with some of the emission parameters which define the Boroson & Green Eigenvector 1, and with the optical to X-ray slope \\alpha_ox. In addition, we find a strong correlation of the C IV EW with the relative accretion rate, L/L_Edd. Since L/L_Edd drives some of the Eigenvector 1 correlations, it may be the primary physical parameter which drives the Baldwin effect for C IV.

  11. DNA nanotechnology: understanding and optimisation through simulation

    E-Print Network [OSTI]

    Thomas E. Ouldridge

    2014-11-07T23:59:59.000Z

    DNA nanotechnology promises to provide controllable self-assembly on the nanoscale, allowing for the design of static structures, dynamic machines and computational architectures. In this article I review the state-of-the art of DNA nanotechnology, highlighting the need for a more detailed understanding of the key processes, both in terms of theoretical modelling and experimental characterisation. I then consider coarse-grained models of DNA, mesoscale descriptions that have the potential to provide great insight into the operation of DNA nanotechnology if they are well designed. In particular, I discuss a number of nanotechnological systems that have been studied with oxDNA, a recently developed coarse-grained model, highlighting the subtle interplay of kinetic, thermodynamic and mechanical factors that can determine behaviour. Finally, new results highlighting the importance of mechanical tension in the operation of a two-footed walker are presented, demonstrating that recovery from an unintended `overstepped' configuration can be accelerated by three to four orders of magnitude by application of a moderate tension to the walker's track. More generally, the walker illustrates the possibility of biasing strand-displacement processes to affect the overall rate.

  12. SECA Coal-Based Systems - LGFCS

    SciTech Connect (OSTI)

    Goettler, Richard

    2013-08-01T23:59:59.000Z

    LGFCS is developing an integrated planar (IP) SOFC technology for mega-watt scale power generation including the potential for use in highly efficient, economically competitive central generation power plant facilities fuel by coal synthesis gas. This Department of Energy Solid-State Energy Conversion Alliance (SECA) program is aimed at achieving further cell and stack technical advancements and assessing the readiness of the LGFCS SOFC stack technology to be scaled to larger-scale demonstrations in subsequent phases. LGFCS is currently in Phase 2 of the program with the Phase 1 test carrying over for completion during Phase 2. Major technical results covering the initial Phase 2 budget period include: Metric Stack Testing: 1. The Phase I metric test is a ~7.6 kW block test (2 strips) in Canton that started in March 2012 and logged 2135 hours of testing prior to an event that required the test to be shutdown. The degradation rate through 2135 hours was 0.4%/1000 hours, well below the Phase I target of 2%/1000 hours and the Phase 2 target of 1.5%/1000 hours. 2. The initial Phase II metric test consisting of 5 strips (~19 kW) was started in May 2012. At the start of the test OCV was low and stack temperatures were out of range. Shutdown and inspection revealed localized structural damage to the strips. The strips were repaired and the test restarted October 11, 2012. 3. Root cause analysis of the Phase 1 and initial Phase 2 start-up failures concluded a localized short circuit across adjacent tubes/bundles caused localized heating and thermal stress fracture of substrates. Pre-reduction of strips rather than in-situ reduction within block test rigs now provides a critical quality check prior to block testing. The strip interconnect design has been modified to avoid short circuits. Stack Design: 1. Dense ceramic strip components were redesigned to achieve common components and a uniform design for all 12 bundles of a strip while meeting a flow uniformity of greater than 95% of the mean flow for all bundles. The prior design required unique bundle components and pressure drops specifications to achieve overall strip fuel flow uniformity. 2. Slow crack growth measurements in simulated fuel environments of the MgO-MgAl2O4 substrate by ORNL reveal favorable tolerance against slow crack growth. Evidence as well of a high stress intensity threshold below which crack growth would be avoided. These findings can have very positive implications on long-term structural reliability. More testing is required, including under actual reformate fuels, to gain a deeper understanding of such time dependent reliability mechanisms. 3. A next generation (Gen2) substrate from the LGFCS supplier has been qualified. The substrate incorporates cost reductions and quality improvements. Cell Developments: 1. Subscale testing of the epsilon technology under system relevant conditions surpassed 16,000 hours with a power degradation rate of <1%/1000 hours. Key degradation mechanisms have been identified: (1) MnOx accumulation near the cathode-electrolyte interface and cathode densification (2) metals migration across the anode-ACC bilayer and general microstructure coarsening at high temperatures and peak fuel utilizations and (3) metal migration into primary interconnect (lesser mechanism) 5 2. Alternate LSM cathodes show slightly lower ASR and lesser free MnOx and chromium contamination. Long-term durability screening of three alternate cathodes is being performed. 3. Single layer anodes show very significant improvement in microstructure stability after 5000 hours testing at aggressive conditions of 925C and bundle outlet, high utilization fuel. 4. New primary interconnect designs are being tested that achieve lower ASR. Modeling performed to further balance ASR and cost through optimized designs.

  13. A series of Cd(II) complexes with {pi}-{pi} stacking and hydrogen bonding interactions: Structural diversities by varying the ligands

    SciTech Connect (OSTI)

    Wang Xiuli, E-mail: wangxiuli@bhu.edu.c [Faculty of Chemistry and Chemical Engineering, Bohai University, Jinzhou 121000 (China); Zhang Jinxia; Liu Guocheng; Lin Hongyan [Faculty of Chemistry and Chemical Engineering, Bohai University, Jinzhou 121000 (China)

    2011-02-15T23:59:59.000Z

    Seven new Cd(II) complexes consisting of different phenanthroline derivatives and organic acid ligands, formulated as [Cd(PIP){sub 2}(dnba){sub 2}] (1), [Cd(PIP)(ox)].H{sub 2}O (2), [Cd(PIP)(1,4-bdc)(H{sub 2}O)].4H{sub 2}O (3), [Cd(3-PIP){sub 2}(H{sub 2}O){sub 2}].4H{sub 2}O (4), [Cd{sub 2}(3-PIP){sub 4}(4,4'-bpdc)(H{sub 2}O){sub 2}].5H{sub 2}O (5), [Cd(3-PIP)(nip)(H{sub 2}O)].H{sub 2}O (6), [Cd{sub 2}(TIP){sub 4}(4,4'-bpdc)(H{sub 2}O){sub 2}].3H{sub 2}O (7) (PIP=2-phenylimidazo[4,5-f]1,10-phenanthroline, 3-PIP=2-(3-pyridyl)imidazo[4,5-f]1,10-phenanthroline, TIP=2-(2-thienyl)imidazo[4,5-f]1,10-phenanthroline, Hdnba=3,5-dinitrobenzoic acid, H{sub 2}ox=oxalic acid, 1,4-H{sub 2}bdc=benzene-1,4-dicarboxylic acid, 4,4'-H{sub 2}bpdc=biphenyl-4,4'-dicarboxylic acid, H{sub 2}nip=5-nitroisophthalic acid) have been synthesized under hydrothermal conditions. Complexes 1 and 4 possess mononuclear structures; complexes 5 and 7 are isostructural and have dinuclear structures; complexes 2 and 3 feature 1D chain structures; complex 6 contains 1D double chain, which are further extended to a 3D supramolecular structure by {pi}-{pi} stacking and hydrogen bonding interactions. The N-donor ligands with extended {pi}-system and organic acid ligands play a crucial role in the formation of the final supramolecular frameworks. Moreover, thermal properties and fluorescence of 1-7 are also investigated. -- Graphical abstract: Seven new supramolecular architectures have been successfully isolated under hydrothermal conditions by reactions of different phen derivatives and Cd(II) salts together with organic carboxylate anions auxiliary ligands. Display Omitted Research highlights: {yields} Complexes 1-7 are 0D or 1D polymeric structure, the {pi}-{pi} stacking and H-bonding interactions extend the complexes into 3D supramolecular network. To our knowledge, systematic study on {pi}-{pi} stacking and H-bonding interactions in cadmium(II) complexes are still limited. {yields} The structural differences among the title complexes indicate the importance of N-donor chelating ligands for the creation of molecular architectures. {yields} The thermal and fluorescence properties of title complexes have also been reported.

  14. Potential of Ozone Formation by the Smog Mechanism to shield the surface of the Early Earth from UV radiation?

    E-Print Network [OSTI]

    John Lee Grenfell; Barbara Stracke; Beate Patzer; Ruth Titz; Heike Rauer

    2006-09-08T23:59:59.000Z

    We propose that the photochemical smog mechanism produced substantial ozone (O3) in the troposphere during the Proterozoic, which contributed to ultraviolet (UV) radiation shielding hence favoured the establishment of life. The smog mechanism is well-established and is associated with pollution hazes which sometimes cover modern cities. The mechanism proceeds via the oxidation of volatile organic compounds (VOCs) such as methane (CH4) in the presence of UV radiation and nitrogen oxides (NOx). It would have been particularly favoured during the Proterozoic given the high levels of CH4 (up to 1000 ppm) recently suggested. Proterozoic UV levels on the surface of the Earth were generally higher compared with today, which would also have favoured the mechanism. On the other hand, Proterozoic O2 required in the final step of the smog mechanism to form O3 was less abundant compared with present times. Further, results are sensitive to Proterozoic NOx concentrations, which are challenging to predict, since they depend on uncertain quantities such as NOx source emissions and OH concentrations. We review NOx sources during the Proterozoic and apply a photochemical box model having methane oxidation with NOx, HOx and Ox chemistry to estimate the O3 production from the smog mechanism. Runs suggest the smog mechanism during the Proterozoic can produce about double present day ozone columns for NOx levels of 1.53 10-9 by volume mixing ratio, which was attainable according to our NOx source analysis, with 1 per-cent present atmospheric levels (PALs) of O2. Clearly, forming ozone in the troposphere is a trade-off for survivability. On the one hand harmful UV is blocked, but on the other hand ozone is a respiratory irratant, which becomes fatal at concentrations exceeding about 1 ppmv.

  15. Structural study of biotic and abiotic poorly-crystalline manganese oxides using atomic pair distribution function analysis

    SciTech Connect (OSTI)

    Zhu, Mengqiang; Farrow, Christopher L.; Post, Jeffrey E.; Livi, Kenneth J.T.; Billinge, Simon J.L.; Ginder-Vogel, Matthew; Sparks, Donald L. (Delaware); (Columbia); (JHU); (Smithsonian)

    2012-03-15T23:59:59.000Z

    Manganese (Mn) oxides are among the most reactive natural minerals and play an important role in elemental cycling in oceanic and terrestrial environments. A large portion of naturally-occurring Mn oxides tend to be poorly-crystalline and/or nanocrystalline, with not fully resolved crystal structures. In this study, the crystal structures of their synthetic analogs including acid birnessite (AcidBir), {delta}-MnO{sub 2}, polymeric MnO{sub 2} (PolyMnO{sub 2}) and a bacteriogenic Mn oxide (BioMnO{sub x}), have been revealed using atomic pair distribution function (PDF) analysis. Results unambiguously verify that these Mn oxides are layered materials. The best models that accurately allow simulation of pair distribution functions (PDFs) belong to the monoclinic C12/m1 space group with a disk-like shape. The single MnO{sub 6} layers in the average structures deviate significantly from hexagonal symmetry, in contrast to the results of previous studies based on X-ray diffraction analysis in reciprocal space. Manganese occupancies in MnO{sub 6} layers are estimated to be 0.936, 0.847, 0.930 and 0.935, for AcidBir, BioMnOx, {delta}-MnO{sub 2} and PolyMnO{sub 2}, respectively; however, occupancies of interlayer cations and water molecules cannot be accurately determined using the models in this study. The coherent scattering domains (CSDs) of PolyMnO{sub 2}, {delta}-MnO{sub 2} and BioMnO{sub x} are at the nanometer scale, comprising one to three MnO{sub 6} layers stacked with a high disorder in the crystallographic c-axis direction. Overall, the results of this study advance our understanding of the mineralogy of Mn oxide minerals in the environment.

  16. Thermodynamics of Uranyl Minerals: Enthalpies of Formation of Uranyl Oxide Hydrates

    SciTech Connect (OSTI)

    K. Kubatko; K. Helean; A. Navrotsky; P.C. Burns

    2005-05-11T23:59:59.000Z

    The enthalpies of formation of seven uranyl oxide hydrate phases and one uranate have been determined using high-temperature oxide melt solution calorimetry: [(UO{sub 2}){sub 4}O(OH){sub 6}](H{sub 2}O){sub 5}, metaschoepite; {beta}-UO{sub 2}(OH){sub 2}; CaUO{sub 4}; Ca(UO{sub 2}){sub 6}O{sub 4}(OH){sub 6}(H{sub 2}O){sub 8}, becquerelite; Ca(UO{sub 2}){sub 4}O{sub 3}(OH){sub 4}(H{sub 2}O){sub 2}; Na(UO{sub 2})O(OH), clarkeite; Na{sub 2}(UO{sub 2}){sub 6}O{sub 4}(OH){sub 6}(H{sub 2}O){sub 7}, the sodium analogue of compreignacite and Pb{sub 3}(UO{sub 2}){sub 8}O{sub 8}(OH){sub 6}(H{sub 2}O){sub 2}, curite. The enthalpy of formation from the binary oxides, {Delta}H{sub f-ox}, at 298 K was calculated for each compound from the respective drop solution enthalpy, {Delta}H{sub ds}. The standard enthalpies of formation from the elements, {Delta}H{sub f}{sup o}, at 298 K are -1791.0 {+-} 3.2, -1536.2 {+-} 2.8, -2002.0 {+-} 3.2, -11389.2 {+-} 13.5, -6653.1 {+-} 13.8, -1724.7 {+-} 5.1, -10936.4 {+-} 14.5 and -13163.2 {+-} 34.4 kJ mol{sup -1}, respectively. These values are useful in exploring the stability of uranyl oxide hydrates in auxiliary chemical systems, such as those expected in U-contaminated environments.

  17. Dissecting the steps of CO2 reduction: 2. The interaction of CO and CO2 with Pd/?-Al2O3: an in situ FTIR study

    SciTech Connect (OSTI)

    Szanyi, Janos; Kwak, Ja Hun

    2014-08-07T23:59:59.000Z

    Alumina supported Pd catalysts with metal loadings of 0.5, 2.5 and 10 wt% were investigated by in situ FTIR spectroscopy in order to understand the nature of adsorbed species formed during their exposure to CO2 and CO. Exposing the annealed samples to CO2 at 295 K resulted in the formation of alumina support-bound surface species only: linear adsorbed CO2, bidentate carbonates and bicarbonates. Room temperature exposure of all three samples to CO produced IR features characteristic of both ionic and metallic Pd, as well as bands we observed upon CO2 adsorption (alumina support-bound species). Low temperature (100 K) adsorption of CO on the three samples provided information about the state of Pd after oxidation and reduction. Oxidized samples contained exclusively ionic Pd, while mostly metallic Pd was present in the reduced samples. Subsequent annealing of the CO-saturated samples revealed the facile (low temperature) reduction of PdOx species by adsorbed CO. This process was evidenced by the variations in IR bands characteristic of ionic and metallic Pd-bound CO, as well as by the appearance of IR bands associated with CO2 adsorption as a function of annealing temperature. Samples containing oxidized Pd species (oxidized, annealed or reduced) always produced CO2 upon their exposure to CO, while CO2-related surface entities were observed on samples having only fully reduced (metallic) Pd. Acknowledgements: The catalyst preparation was supported by a Laboratory Directed Research and Development (LDRD) project. This work was supported by the US Department of Energy Basic Energy Sciences, Division of Chemical Sciences, Geosciences & Biosciences. Pacific Northwest National Laboratory is operated by Battelle for the US Department of Energy. JHK also acknowledges the support of this work by the 2013 Research Fund of UNIST (Ulsan National Institute of Science and Technology, Ulsan, Korea).

  18. High temperature solar selective coatings

    DOE Patents [OSTI]

    Kennedy, Cheryl E

    2014-11-25T23:59:59.000Z

    Improved solar collectors (40) comprising glass tubing (42) attached to bellows (44) by airtight seals (56) enclose solar absorber tubes (50) inside an annular evacuated space (54. The exterior surfaces of the solar absorber tubes (50) are coated with improved solar selective coatings {48} which provide higher absorbance, lower emittance and resistance to atmospheric oxidation at elevated temperatures. The coatings are multilayered structures comprising solar absorbent layers (26) applied to the meta surface of the absorber tubes (50), typically stainless steel, topped with antireflective Savers (28) comprising at least two layers 30, 32) of refractory metal or metalloid oxides (such as titania and silica) with substantially differing indices of refraction in adjacent layers. Optionally, at least one layer of a noble metal such as platinum can be included between some of the layers. The absorbent layers cars include cermet materials comprising particles of metal compounds is a matrix, which can contain oxides of refractory metals or metalloids such as silicon. Reflective layers within the coating layers can comprise refractory metal silicides and related compounds characterized by the formulas TiSi. Ti.sub.3SiC.sub.2, TiAlSi, TiAN and similar compounds for Zr and Hf. The titania can be characterized by the formulas TiO.sub.2, Ti.sub.3O.sub.5. TiOx or TiO.sub.xN.sub.1-x with x 0 to 1. The silica can be at least one of SiO.sub.2, SiO.sub.2x or SiO.sub.2xN.sub.1-x with x=0 to 1.

  19. Low-Temperature Carbon Monoxide Oxidation Catalysed by Regenerable Atomically Dispersed Palladium on Alumina

    SciTech Connect (OSTI)

    Peterson, Eric; DelaRiva, Andrew; Lin, Sen; Johnson, Ryan S.; Guo, Hua; Miller, Jeff; Kwak, Ja Hun; Peden, Charles HF; Kiefer, Boris; Allard, Lawrence F.; Ribeiro, Fabio; Datye, Abhaya K.

    2014-09-15T23:59:59.000Z

    Catalysis by single isolated atoms of precious metals has attracted much recent interest since it promises the ultimate economy in atom efficiency. Previous reports have been confined to reducible oxide supports such as FeOx, TiO2 or CeO2. Here we show that isolated Pd atoms can be stabilized on industrially relevant gamma-alumina supports. At low Pd loadings (?0.5 wt%) these catalysts contain exclusively atomically dispersed Pd species. The addition of lanthanum-oxide to the alumina, long known for its ability to improve alumina stability, is found to also help in the stabilization of isolated Pd atoms. Aberration-corrected scanning transmission electron microscopy (AC-STEM) confirms the presence of intermingled Pd and La on the gamma-alumina surface. Operando X-ray absorption spectroscopy, performed on Pd/La-alumina and Pd/gamma-alumina (0.5 wt% Pd) demonstrates the presence of catalytically active atomically dispersed ionic Pd in the Pd/La-doped gamma-alumina system. CO oxidation reactivity measurements show onset of catalytic activity at 40 ?C, indicating that the ionic Pd species are not poisoned by CO. The reaction order in CO and O2 is positive, suggesting a reaction mechanism that is different from that on metallic Pd. The catalyst activity is lost if the Pd species are reduced to their metallic form, but the activity can be regenerated by oxidation at 700 ?C in air. The high-temperature stability of these ionic Pd species on commercial alumina supports makes this catalyst system of potential interest for low-temperature exhaust treatment catalysts.

  20. Synthesis and Evaluation of Cu-SAPO-34 Catalysts for Ammonia Selective Catalytic Reduction. 1. Aqueous Solution Ion Exchange

    SciTech Connect (OSTI)

    Gao, Feng; Walter, Eric D.; Washton, Nancy M.; Szanyi, Janos; Peden, Charles HF

    2013-09-06T23:59:59.000Z

    SAPO-34 molecular sieves are synthesized using various structure directing agents (SDAs). Cu-SAPO-34 catalysts are prepared via aqueous solution ion exchange. Catalysts are characterized with surface area/pore volume measurements, temperature programmed reduction (TPR), electron paramagnetic resonance (EPR) and nuclear magnetic resonance (NMR) spectroscopies. Catalytic properties are examined using standard ammonia selective catalytic reduction (NH3-SCR) and ammonia oxidation reactions. During solution ion exchange, different SAPO-34 samples undergo different extent of structural damage via irreversible hydrolysis. Si content within the samples (i.e., Al-O-Si bond density) and framework stress are key factors that affect irreversible hydrolysis. Even using very dilute Cu acetate solutions, it is not possible to generate Cu-SAPO-34 samples with only isolated Cu2+ ions. Small amounts of CuOx species always coexist with isolated Cu2+ ions. Highly active and selective Cu-SAPO-34 catalysts for NH3-SCR are readily generated using this synthesis protocol, even for SAPO-34 samples that degrade substantially during solution ion exchange. High-temperature aging is found to improve the catalytic performance. This is likely due to reduction of intracrystalline mass-transfer limitations via formation of additional porosity in the highly defective SAPO-34 particles formed after ion exchange. The authors gratefully acknowledge the US Department of Energy (DOE), Office of Energy Efficiency and Renewable Energy, Office of Vehicle Technologies for the support of this work. The research described in this paper was performed at the Environmental Molecular Sciences Laboratory (EMSL), a national scientific user facility sponsored by the DOE’s Office of Biological and Environmental Research and located at Pacific Northwest National Laboratory (PNNL). PNNL is operated for the US DOE by Battelle Memorial Institute under contract number DE-AC05-76RL01830.

  1. The Relationship Between the High Energy Continuum and Emission Lines in QSOs: A Low-Redshift Sample

    E-Print Network [OSTI]

    Paul J. Green

    1996-03-18T23:59:59.000Z

    Quasar emission lines are sensitive to both the luminosity and shape of the quasars' high energy continuum - primarily in the soft X-ray and the (obscured) extreme ultraviolet. We initiate the first large-scale, multi-line investigation of correlations between the QSO soft X-ray continuum and UV line emission, using an IUE/Einstein sample. We characterize the distributions of line equivalent and velocity widths (EW and FWHM) of 85 QSOs in the IUE atlas of Lanzetta et al. (1993), using a new error analysis for objective, automated line measurements, and contrast measured line parameters to the QSO continuum spectral energy distributions (SEDs). We find significant correlations between EW and UV luminosity (e.g., the well-studied Baldwin effect) for Lya, CIV, HeII, and CIII. EW(CIII) and EW(HeII) show previously unreported correlations with Lx which for CIII appears to be primary. The line ratios CIII/Lya and HeII/Lya both show strongest dependence on Lx. EW(Lya) correlates strongly with spectral slopes \\alpha_{uv} and \\alpha_{ox}, but NOT with Lx. We argue that one simple geometrical interpretation of the Baldwin effect (BEff) as a result of a distribution of disk inclinations is not plausible. The BEff weakens or disappears when line emission is correctly compared to the luminosity in the continuum bandpass relevant to its production, which suggests that the BEff is due to a change in SED with luminosity. Our prediction that no BEff relative to X-ray luminosity should be found for FeII or MgII emission lines, will be tested in a later paper, extended to a wider redshift/luminosity range.

  2. Understanding the origin of high-rate intercalation pseudocapacitance in Nb2O5 crystals

    SciTech Connect (OSTI)

    Ganesh, Panchapakesan [ORNL] [ORNL; Kent, P. R. C. [University of Tennessee, Knoxville (UTK)] [University of Tennessee, Knoxville (UTK); Sumpter, Bobby G [ORNL] [ORNL; Lubimtsev, Andrew A [ORNL] [ORNL

    2013-01-01T23:59:59.000Z

    Pseudocapacitors aim to maintain the high power density of supercapacitors while increasing the energy density towards those of energy dense storage systems such as lithium ion batteries. Recently discovered intercalation pseudocapacitors (e.g. Nb2O5) are particularly interesting because their performance is seemingly not limited by surface reactions or structures, but instead determined by the bulk crystalline structure of the material. We study ordered polymorphs of Nb2O5 and detail the mechanism for the intrinsic high rates and energy density observed for this class of materials. We find that the intercalating atom (lithium) forms a solid solution adsorbing at specific sites in a network of quasi-2D NbOx faces with x {1.3, 1.67, or 2}, donating electrons locally to its neighboring atoms, reducing niobium. Open channels in the structure have low diffusion barriers for ions to migrate between these sites (Eb 0.28 0.44 eV) comparable to high-performance solid electrolytes. Using a combination of complementary theoretical methods we rationalize this effect in LixNb2O5 for a wide range of compositions (x) and at finite temperatures. Multiple adsorption sites per unit-cell with similar adsorption energies and local charge transfer result in high capacity and energy density, while the interconnected open channels lead to low cost diffusion pathways between these sites, resulting in high power density. The nano-porous structure exhibiting local chemistry in a crystalline framework is the origin of high-rate pseudocapacitance in this new class of intercalation pseudocapacitor materials. This new insight provides guidance for improving the performance of this family of materials.

  3. Geothermal Target Areas in Colorado as Identified by Remote Sensing Techniques

    SciTech Connect (OSTI)

    Hussein, Khalid

    2012-02-01T23:59:59.000Z

    Citation Information: Originator: Earth Science &Observation Center (ESOC), CIRES, University of Colorado at Boulder Publication Date: 2012 Title: Target Areas Edition: First Publication Information: Publication Place: Earth Science & Observation Center, Cooperative Institute for Research in Environmental Science, University of Colorado, Boulder, Colorado Publisher: Earth Science &Observation Center (ESOC), CIRES, University of Colorado at Boulder Description: This layer contains the areas identified as targets of potential geothermal activity. The Criteria used to identify the target areas include: hot/warm surface exposures modeled from ASTER/Landsat satellite imagery and geological characteristics, alteration mineral commonly associated with hot springs (clays, Si, and FeOx) modeled from ASTER and Landsat data, Coloradodo Geological Survey (CGS) known thermal hot springs/wells and heat-flow data points, Colorado deep-seated fault zones, weakened basement identified from isostatic gravity data, and Colorado sedimentary and topographic characteristics Spatial Domain: Extent: Top: 4546251.530446 m Left: 151398.567298 m Right: 502919.587395 m Bottom: 4095100.068903 m Contact Information: Contact Organization: Earth Science &Observation Center (ESOC), CIRES, University of Colorado at Boulder Contact Person: Khalid Hussein Address: CIRES, Ekeley Building Earth Science & Observation Center (ESOC) 216 UCB City: Boulder State: CO Postal Code: 80309-0216 Country: USA Contact Telephone: 303-492-6782 Spatial Reference Information: Coordinate System: Universal Transverse Mercator (UTM) WGS’1984 Zone 13N False Easting: 500000.00000000 False Northing: 0.00000000 Central Meridian: -105.00000000 Scale Factor: 0.99960000 Latitude of Origin: 0.00000000 Linear Unit: Meter Datum: World Geodetic System ’1984 (WGS ’1984) Prime Meridian: Greenwich Angular Unit: Degree Digital Form: Format Name: Shape file

  4. Local Availability of mathematics and number scaling: Effects on quantum physics

    E-Print Network [OSTI]

    Paul Benioff

    2012-05-01T23:59:59.000Z

    Local availability of mathematics and number scaling provide an approach to a coherent theory of physics and mathematics. Local availability of mathematics assigns separate mathematical universes, U_{x}, to each space time point, x. The mathematics available to an observer, O_{x}, at x is contained in U_{x}. Number scaling is based on extending the choice freedom of vector space bases in gauge theories to choice freedom of underlying number systems. Scaling arises in the description, in U_{x}, of mathematical systems in U_{y}. If a_{y} or \\psi_{y} is a number or a quantum state in U_{y}, then the corresponding number or state in U_{x} is r_{y,x}a_{x} or r_{y,x}\\psi_{x}. Here a_{x} and \\psi_{x} are the same number and state in U_{x} as a_{y} and \\psi_{y} are in U_{y}. If y=x+\\hat{\\mu}dx is a neighbor point of x, then the scaling factor is r_{y,x}=\\exp(\\vec{A}(x)\\cdot\\hat{\\mu}dx) where \\vec{A} is a vector field, assumed here to be the gradient of a scalar field. The effects of scaling and local availability of mathematics on quantum theory show that scaling has two components, external and internal. External scaling is shown above for a_{y} and \\psi_{y}. Internal scaling occurs in expressions with integrals or derivatives over space or space time. An example is the replacement of the position expectation value, \\int\\psi^{*}(y)y\\psi(y)dy, by \\int_{x}r_{y,x}\\psi^{*}_{x}(y_{x})y_{x}\\psi_{x}(y_{x})dy_{x}. This is an integral in U_{x}. The good agreement between quantum theory and experiment shows that scaling is negligible in a space region, L, in which experiments and calculations can be done, and results compared. L includes the solar system, but the speed of light limits the size of L to a few light years. Outside of $L$, at cosmological distances, the limits on scaling are not present.

  5. On the afterglow and host galaxy of GRB 021004: A comprehensivestudy with the Hubble Space Telescope1

    SciTech Connect (OSTI)

    Fynbo, J.P.U.; Gorosabel, J.; Smette, A.; Fruchter, A.; Hjorth,J.; Pedersen, K.; Levan, A.; Burud, I.; Sahu, K.; Vreeswijk, P.M.; Bergeron, E.; Kouveliotou1, C.; Tanvir, N.; Thorsett11, S.E.; Wijers,R.A.M.J.; Castro Ceron, J.M.; Castro-Tirado, A.; Garnavich, P.; Holland,S.T.; Jakobsson, P.; Moller, P.; Nugent, P.; Pian, E.; Rhoads, J.; Thomsen, B.; Watson, D.; Woosley, S.

    2004-12-01T23:59:59.000Z

    We report on Hubble Space Telescope (HST) observations of the late-time afterglow and host galaxy of GRB 021004 (z = 2.33).Although this gamma-ray burst (GRB) is one of the best observed so far in terms of sampling in the time domain, multi-wavelength coverage and polarimetric observations, there is large disagreement between different measurements and interpretations of this burst in the literature. We have observed the field of GRB 021004 with the HST at multiple epochs from 3 days until almost 10 months after the burst. With STI S prism and G430L spectroscopy we cover the spectral region from about 2000 Angstrom to 5700 Angstrom corresponding to 600 1700 Angstrom in the rest frame. From the limit on the flux recovery bluewards of the Lyman-limit we constrain the H I column density to be above 1 x 1018 cm-2 (5 sigma). Based on ACS and N ICMOS imaging we find that the afterglow evolved a chromatically within the errors (any variation must be less then 5 percent) during the period of HST observations. The color changes observed by other authors during the first four days must be related to a 'noisy' phenomenon superimposed on an afterglow component with a constant spectral shape. This also means that the cooling break has remained on the blue side of the optical part of the spectrum for at least two weeks after the explosion. The optical to X-ray slope OX is consistent with being the same at 1.4 and 52.4 days after the burst. This indicates that the cooling frequency is constant and hence, according to fireball models, that the circumburst medium has a constant density profile. The late-time slope of the light curve (alpha 2, F nu proportional to t-alpha2) is in the range 2 = 1.8-1.9, although inconsistent with a single power-law. This could be due to a late-time flattening caused by the transition to non-relativistic expansion or due to excess emission (a 'bump' in the light curve) about 7 days afterburst. The host galaxy is like most previously studied GRB hosts a (very) blue starburst galaxy with no evidence for dust and with strong Ly emission. The star-formation rate of the host is about 10 M solar mass yr-1 based on both the strength of the UV continuum and on the Ly alpha luminosity. The spectral energy distribution of the host implies an age in the range 30-100 Myr for the dominant stellar population.

  6. Recovery Act: Novel Oxygen Carriers for Coal-fueled Chemical Looping

    SciTech Connect (OSTI)

    Pan, Wei-Ping; Cao, Yan

    2012-11-30T23:59:59.000Z

    Chemical Looping Combustion (CLC) could totally negate the necessity of pure oxygen by using oxygen carriers for purification of CO{sub 2} stream during combustion. It splits the single fuel combustion reaction into two linked reactions using oxygen carriers. The two linked reactions are the oxidation of oxygen carriers in the air reactor using air, and the reduction of oxygen carriers in the fuel reactor using fuels (i.e. coal). Generally metal/metal oxides are used as oxygen carriers and operated in a cyclic mode. Chemical looping combustion significantly improves the energy conversion efficiency, in terms of the electricity generation, because it improves the reversibility of the fuel combustion process through two linked parallel processes, compared to the conventional combustion process, which is operated far away from its thermo-equilibrium. Under the current carbon-constraint environment, it has been a promising carbon capture technology in terms of fuel combustion for power generation. Its disadvantage is that it is less mature in terms of technological commercialization. In this DOE-funded project, accomplishment is made by developing a series of advanced copper-based oxygen carriers, with properties of the higher oxygen-transfer capability, a favorable thermodynamics to generate high purity of CO{sub 2}, the higher reactivity, the attrition-resistance, the thermal stability in red-ox cycles and the achievement of the auto-thermal heat balance. This will be achieved into three phases in three consecutive years. The selected oxygen carriers with final-determined formula were tested in a scaled-up 10kW coal-fueled chemical looping combustion facility. This scaled-up evaluation tests (2-day, 8-hour per day) indicated that, there was no tendency of agglomeration of copper-based oxygen carriers. Only trace-amount of coke or carbon deposits on the copper-based oxygen carriers in the fuel reactor. There was also no evidence to show the sulphidization of oxygen carriers in the system by using the high-sulfur-laden asphalt fuels. In all, the scaled-up test in 10 kW CLC facility demonstrated that the preparation method of copper-based oxygen carrier not only help to maintain its good reactivity, also largely minimize its agglomeration tendency.

  7. INVESTIGATING THE COMPLEX X-RAY SPECTRUM OF A BROAD-LINE 2MASS RED QUASAR: XMM-NEWTON OBSERVATION OF FTM 0830+3759

    SciTech Connect (OSTI)

    Piconcelli, Enrico; Nicastro, Fabrizio; Fiore, Fabrizio [Osservatorio Astronomico di Roma (INAF), Via Frascati 33, I-00040 Monte Porzio Catone, Italy. (Italy); Vignali, Cristian [Dipartimento di Astronomia, Universita di Bologna, Via Ranzani 1, I-40127 Bologna (Italy); Bianchi, Stefano [Dipartimento di Fisica, Universita degli Studi Roma Tre, via della Vasca Navale 84, I-00146 Roma (Italy); Miniutti, Giovanni, E-mail: piconcelli@oa-roma.inaf.i [LAEX, Centro de Astrobiologia (CSIC-INTA) LAEFF, P.O. Box 78, E-28691 Villanueva de la Canada, Madrid (Spain)

    2010-02-20T23:59:59.000Z

    We report results from a 50 ks XMM-Newton observation of the dust-reddened broad-line quasar FTM 0830+3759 (z = 0.413) selected from the Faint Images of the Radio Sky at Twenty cm/Two Micron All Sky Survey red quasar survey. For this active galactic nucleus (AGN), a very short 9 ks Chandra exposure had suggested a feature-rich X-ray spectrum and Hubble Space Telescope images revealed a very disturbed host galaxy morphology. Contrary to classical, optically selected quasars, the X-ray properties of red (i.e., with J - K{sub s} > 1.7 and R - K{sub s} > 4.0) broad-line quasars are still quite unexplored, although there is a growing consensus that, due to moderate obscuration, these objects can offer a unique view of spectral components typically swamped by the AGN light in normal, blue quasars. The XMM-Newton observation discussed here has definitely confirmed the complexity of the X-ray spectrum revealing the presence of a cold (or mildly ionized) absorber with N{sub H} {approx} 10{sup 22} cm{sup -2} along the line of sight to the nucleus and a Compton reflection component accompanied by an intense Fe Kalpha emission line in this quasar with a L{sub 2-10{sub keV}} {approx} 5 x 10{sup 44} erg s{sup -1}. A soft-excess component is also required by the data. The match between the column density derived by our spectral analysis and that expected on the basis of reddening due to the dust suggests the possibility that both absorptions occur in the same medium. FTM 0830+3759 is characterized by an extinction/absorption-corrected X-ray-to-optical flux ratio alpha{sub ox} = -2.3, which is steeper than expected on the basis of its UV luminosity. These findings indicate that the X-ray properties of FTM 0830+3759 differ from those typically observed for optically selected broad-line quasars with comparable hard X-ray luminosity.

  8. Summary of research on hydrogen production from fossil fuels conducted at NETL

    SciTech Connect (OSTI)

    Shamsi, Abolghasem

    2008-03-30T23:59:59.000Z

    In this presentation we will summarize the work performed at NETL on the production of hydrogen via partial oxidation/dry reforming of methane and catalytic decomposition of hydrogen sulfide. We have determined that high pressure resulted in greater carbon formation on the reforming catalysts, lower methane and CO2 conversions, as well as a H2/CO ratio. The results also showed that Rh/alumina catalyst is the most resistant toward carbon deposition both at lower and at higher pressures. We studied the catalytic partial oxidation of methane over Ni-MgO solid solutions supported on metal foams and the results showed that the foam-supported catalysts reach near-equilibrium conversions of methane and H2/CO selectivities. The rates of carbon deposition differ greatly among the catalysts, varying from 0.24 mg C/g cat h for the dipped foams to 7.0 mg C/g cat h for the powder-coated foams, suggesting that the exposed Cr on all of the foam samples may interact with the Ni-MgO catalyst to kinetically limit carbon formation. Effects of sulfur poisoning on reforming catalysts were studies and pulse sulfidation of catalyst appeared to be reversible for some of the catalysts but not for all. Under pulse sulfidation conditions, the 0.5%Rh/alumina and NiMg2Ox-1100ºC (solid solution) catalysts were fully regenerated after reduction with hydrogen. Rh catalyst showed the best overall activity, less carbon deposition, both fresh and when it was exposed to pulses of H2S. Sulfidation under steady state conditions significantly reduced catalyst activity. Decomposition of hydrogen sulfide into hydrogen and sulfur was studied over several supported metal oxides and metal oxide catalysts at a temperature range of 650-850°C. H2S conversions and effective activation energies were estimated using Arrhenius plots. The results of these studies will further our understanding of catalytic reactions and may help in developing better and robust catalysts for the production of hydrogen from fossil fuels

  9. Laser conditioning study of KDP on the optical sciences laser using large area beams

    SciTech Connect (OSTI)

    Runkel, M.; DeYoreo, J.; Sell, W.; Milam, D.

    1997-12-20T23:59:59.000Z

    Considerable attention has been paid over the years to the problem of growing high purity KDP and KD*P to meet threshold requirements on succeeding generations of inertial confinement fusion lasers at LLNL. While damage thresholds for these materials have increased over time, the current National Ignition Facility (NIF) maximum fluence requirement (redline) for KD*P frequency triplers of 14.3 J/cm{sup 2} at 351 nm, 3 ns has not been reached without laser (pre)conditioning. It is reasonable to assume that, despite the rapid increase in damage thresholds for rapidly grown crystals, -a program of large scale conditioning of the 192 NIF triplers will be required. Small area ramp (R/1) tests on single sites indicate that KDP damage thresholds can be raised on average up to 1.5X the unconditioned values. Unpublished LLNL 3{omega} raster conditioning studies on KDP, however, have not conclusively shown that off-line conditioning is feasible for KD*P. Consequently, investigating the feasibility of on-line conditioning of NIF triplers at 3{omega} has become a high priority for the KDP damage group at LLNL. To investigate the feasibility of on-line conditioning we performed a series of experiments using the Optical Sciences Laser (OSL) on numerous samples of conventional and rapid growth KDP and KD*P. The experiment entailed exposing sites on each sample to a range of ramped shot (N/l) sequences starting at average fluences of -2 J/cm{sup 2} (in a 7 mm ``top hat`` beam @ 351 nm, 3 ns) up to peak fluences of approximately 13 J/cm{sup 2}. Test results indicated that the most effective conditioning procedure entailed a 7-8 shot ramp starting at 2 J/cm{sup 2} and ending at 12-13 J/cm{sup 2}. The pinpoint onset fluence for the 8/1 tests was 1.4 times that of the unconditioned site. Damage evolution appears to be exponential as a function of increasing fluence. When damage occurs after conditioning however, pinpoint density evolution exhibits a greater slope than less conditioned sites. The overall reduction in the total pinpoint number can be as high as 30OX. Despite laser conditioning , the pinpoint onset for the samples considered is below the NIF redline fluence of 14.3 J/cm{sup 2}. In addition, the exponential pinpoint evolution curves indicate that damage levels at NIF redline fluences will be on the order of 10{sup 4} pinpoints/mm{sup 2}. This suggests that there will be significant damage in NIP triplers, however, substantial damage has not been observed in the large Beamlet tripler (conventionally grown KD*P) under similar exposure conditions. By applying the OSL damage evolution curves to model NIF THG output spatial profiles it is possible to show damage in NIF triplers will be slight, consisting of isolated clusters with a few pinpoints at high fluence portions of the beam. This prediction has been verified by scatter mapping the 37 cm Beamlet tripler crystal. These results will be discussed in a future memo. These results indicate the feasibility of on-line conditioning for the NIF laser.

  10. The Integration of a Structural Water Gas Shift Catalyst with a Vanadium Alloy Hydrogen Transport Device

    SciTech Connect (OSTI)

    Barton, Thomas; Argyle, Morris; Popa, Tiberiu

    2009-06-30T23:59:59.000Z

    This project is in response to a requirement for a system that combines water gas shift technology with separation technology for coal derived synthesis gas. The justification of such a system would be improved efficiency for the overall hydrogen production. By removing hydrogen from the synthesis gas stream, the water gas shift equilibrium would force more carbon monoxide to carbon dioxide and maximize the total hydrogen produced. Additional benefit would derive from the reduction in capital cost of plant by the removal of one step in the process by integrating water gas shift with the membrane separation device. The answer turns out to be that the integration of hydrogen separation and water gas shift catalysis is possible and desirable. There are no significant roadblocks to that combination of technologies. The problem becomes one of design and selection of materials to optimize, or at least maximize performance of the two integrated steps. A goal of the project was to investigate the effects of alloying elements on the performance of vanadium membranes with respect to hydrogen flux and fabricability. Vanadium was chosen as a compromise between performance and cost. It is clear that the vanadium alloys for this application can be produced, but the approach is not simple and the results inconsistent. For any future contracts, large single batches of alloy would be obtained and rolled with larger facilities to produce the most consistent thin foils possible. Brazing was identified as a very likely choice for sealing the membranes to structural components. As alloying was beneficial to hydrogen transport, it became important to identify where those alloying elements might be detrimental to brazing. Cataloging positive and negative alloying effects was a significant portion of the initial project work on vanadium alloying. A water gas shift catalyst with ceramic like structural characteristics was the second large goal of the project. Alumina was added as a component of conventional high temperature water gas shift iron oxide based catalysts. The catalysts contained Fe-Al-Cr-Cu-O and were synthesized by co-precipitation. A series of catalysts were prepared with 5 to 50 wt% Al2O3, with 8 wt% Cr2O3, 4 wt% CuO, and the balance Fe2O3. All of the catalysts were compared to a reference WGS catalyst (88 wt% FeOx, 8 wt% Cr2O3, and 4 wt% CuO) with no alumina. Alumina addition to conventional high temperature water gas shift catalysts at concentrations of approximately 15 wt% increased CO conversion rates and increase thermal stability. A series of high temperature water gas shift catalysts containing iron, chromia, and copper oxides were prepared with small amounts of added ceria in the system Fe-Cr-Cu-Ce-O. The catalysts were also tested kinetically under WGS conditions. 2-4 wt% ceria addition (at the expense of the iron oxide content) resulted in increased reaction rates (from 22-32% higher) compared to the reference catalyst. The project goal of a 10,000 liter per day WGS-membrane reactor was achieved by a device operating on coal derived syngas containing significant amounts of carbon monoxide and hydrogen sulfide. The membrane flux was equivalent to 52 scfh/ft2 based on a 600 psi syngas inlet pressure and corresponded to membranes costing $191 per square foot. Over 40 hours of iv exposure time to syngas has been achieved for a double membrane reactor. Two modules of the Chart reactor were tested under coal syngas for over 75 hours with a single module tested for 50 hours. The permeance values for the Chart membranes were similar to the REB reactor though total flux was reduced due to significantly thicker membranes. Overall testing of membrane reactors on coal derived syngas was over 115 hours for all reactors tested. Testing of the REB double membrane device exceeded 40 hours. Performance of the double membrane reactor has been similar to the results for the single reactor with good maintenance of flux even after these long exposures to hydrogen sulfide. Of special interest is that the flux is highest at the start of each e