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Evolution of Stress in ScD{sub 2}/Cr Thin Films Fabricated by Evaporation and High Temperature Reaction

Description: The stress of scandium dideuteride, ScD{sub 2}, thin films is investigated during each stage of vacuum processing including metal deposition via evaporation, reaction and cooldown. ScD{sub 2} films with thin Cr underlayers are fabricated on three different substrate materials: molybdenum-alumina cermet, single crystal sapphire and quartz. In all experiments, the evaporated Cr and Sc metal is relatively stress-free. However, reaction of scandium metal with deuterium at elevated temperature to fo… more
Date: June 1, 2001
Creator: ADAMS,DAVID P.; BROWN,LAURENCE E.; GOEKE,RONALD S.; ROMERO,JUAN A. & SILVA,ANDREW D.
Partner: UNT Libraries Government Documents Department
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Power Technologies Data Book 2003 Edition

Description: The 2003 edition of this report, prepared by NREL's Energy Analysis Office, includes up-to-date information on power technologies, including complete technology profiles. The data book also contains charts on electricity restructuring, power technology forecasts and comparisons, electricity supply, electricity capability, electricity generation, electricity demand, prices, economic indicators, environmental indicators, conversion factors, and selected congressional questions and answers.
Date: June 1, 2004
Creator: Aabakken, J.
Partner: UNT Libraries Government Documents Department
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BIGFLOW: A numerical code for simulating flow in variably saturated, heterogeneous geologic media. Theory and user`s manaual, Version 1.1

Description: This report documents BIGFLOW 1.1, a numerical code for simulating flow in variably saturated heterogeneous geologic media. It contains the underlying mathematical and numerical models, test problems, benchmarks, and applications of the BIGFLOW code. The BIGFLOW software package is composed of a simulation and an interactive data processing code (DATAFLOW). The simulation code solves linear and nonlinear porous media flow equations based on Darcy`s law, appropriately generalized to account for … more
Date: June 1, 1993
Creator: Ababou, R. & Bagtzoglou, A. C.
Partner: UNT Libraries Government Documents Department
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Combined approach to the inverse protein folding problem. Final report

Description: The main scientific contribution of the project ''Combined approach to the inverse protein folding problem'' submitted in 1996 and funded by the Department of Energy in 1997 is the formulation and development of the idea of the multilink recognition method for identification of functional and structural homologues of newly discovered genes. This idea became very popular after they first announced it and used it in prediction of the threading targets for the CASP2 competition (Critical Assessmen… more
Date: June 1, 2000
Creator: Abagyan, Ruben A.
Partner: UNT Libraries Government Documents Department
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Federal Environmental activities

Description: This report presents the Environmental activities of all units of the federal government except the supreme court and the committees of congress.
Date: June 1, 1972
Creator: Abbasi, Susan R.
Partner: UNT Libraries Government Documents Department
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Development of novel copper-based sorbents for hot-gas cleanup. [Quarterly] technical report, December 1, 1993--February 28, 1994

Description: The objective of this investigation is to evaluate two novel copper-based sorbents, namely copper-chromium and copper-cerium, for their effectiveness in removing hydrogen sulfide from fuel gas in the temperature range of 650{degree} to 850{degree}. Such high temperatures will be required for the new generation of gas turbines (inlet >750{degree}C) in Integrated Gasification Combined Cycle (IGCC) systems. The effect of pre-reduction with H{sub 2}, in the presence of H{sub 2}O on the performance … more
Date: June 1, 1994
Creator: Abbasian, J.; Hill, A. H.; Flytzani-Stephanopoulos, M. & Li, Zhijiang
Partner: UNT Libraries Government Documents Department
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Sulfur removal in advanced two-stage fluidized-bed combustion. [Quarterly] technical report, December 1, 1993--February 28, 1994

Description: The objective of this study is to obtain data on the rates of reaction between, hydrogen sulfide (H{sub 2}S) and uncalcined calcium-based sorbents under operating conditions relevant to first stage (carbonizer) of Advanced Two-Stage Pressurized Fluidized-Bed Combustors (PFBC). In these systems the CO{sub 2} partial pressure in the first stage generally exceeds the equilibrium value for calcium carbonate decomposition. Therefore, removal of sulfur compounds takes place through the reaction betwe… more
Date: June 1, 1994
Creator: Abbasian, J.; Hill, A. H.; Wangerow, J. R. & Rue, D. M.
Partner: UNT Libraries Government Documents Department
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Development of Highly Durable and Reactive Regenerable Magnesium-Based Sorbents for CO2 Separation in Coal Gasification Process

Description: The specific objective of this project was to develop physically durable and chemically regenerable MgO-based sorbents that can remove carbon dioxide from raw coal gas at operating condition prevailing in IGCC processes. A total of sixty two (62) different sorbents were prepared in this project. The sorbents were prepared either by various sol-gel techniques (22 formulations) or modification of dolomite (40 formulations). The sorbents were prepared in the form of pellets and in granular forms. … more
Date: June 1, 2005
Creator: Abbasian, Javad; Khayyat, Armin Hassanzadeh & Slimane, Rachid B.
Partner: UNT Libraries Government Documents Department
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Design considerations for the development of a space qualification Short Wavelength Imaging Fourier Transform Spectrometer (SWIFTS)

Description: This document is the final report on work performed at Sandia National Laboratories during FY 1992 and 1993 for a Laboratory Directed Research and Development (LDRD) program to look at problems associated with the design and long term operation of a short wavelength imaging Fourier Transform (FT) spectrometer for use in space. In attempts to answer two fundamental questions: is a FT spectrometer with a resolution of 1 cm{sup {minus}1} covering the silicon detector wavelength range of 0.4 to 1.1… more
Date: June 1, 1997
Creator: Abbink, R. E.
Partner: UNT Libraries Government Documents Department
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AGR-2 Data Qualification Report for ATR Cycles 149B, 150A, 150B, 151A, and 151B

Description: This report provides the data qualification status of AGR-2 fuel irradiation experimental data from Advanced Test Reactor (ATR) cycles 149B, 150A, 150B, 151A, and 151B), as recorded in the Nuclear Data Management and Analysis System (NDMAS). The AGR-2 data streams addressed include thermocouple temperatures, sweep gas data (flow rate, pressure, and moisture content), and fission product monitoring system (FPMS) data for each of the six capsules in the experiment. A total of 3,307,500 5-minute t… more
Date: June 1, 2012
Creator: Abbott, Michael L. & Pham, Binh T.
Partner: UNT Libraries Government Documents Department
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Critical-fluid extraction of organics from water. Volume II. Experimental. Final report, 1 October 1979-30 November 1983

Description: Critical fluid extraction has been tested at the pilot plant scale as a method of separating organics from water. The process employed resembles a liquid-liquid extraction in which the solvent is near-critical carbon dioxide and the feed is an organic in aqueous solution. Carbon dioxide's solvent and other thermodynamic properties, and the effective utilization of a vapor recompression cycle in the process design have significantly reduced the energy required for these separations. This process… more
Date: June 1, 1984
Creator: Abboud, O. K.; de Filippi, R. P.; Goklen, K. E. & Moses, J. M.
Partner: UNT Libraries Government Documents Department
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Colloid-Facilitated Plutonium Transport in Saturated Alluvium

Description: Natural groundwater colloids have been recognized as possible agents for enhancing the subsurface transport of strongly-sorbing radionuclides. To evaluate this mechanism, packed-bed column experiments were conducted comparing the simultaneous transport of dissolved plutonium (Pu), Pu sorbed onto natural colloids, 190-nm and 500-nm diameter fluorescent CML microspheres, and tritiated water in saturated alluvium. Experiments were conducted in two columns having slightly different porosities at tw… more
Date: June 1, 2004
Creator: Abdel-Fattah, A.; Reimus, P.; Ware, S. & Haga, M.
Partner: UNT Libraries Government Documents Department
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Hazardous materials in Aquatic environments of the Mississippi River basin. Quarterly project status report, 1 January 1994--30 March 1994

Description: Projects associated with this grant for studying hazardous materials in aquatic environments of the Mississippi River Basin are reviewed and goals, progress and research results are discussed. New, one-year initiation projects are described briefly.
Date: June 1, 1994
Creator: Abdelghani, A.
Partner: UNT Libraries Government Documents Department
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Fusion Neutronics Experiments and Analysis

Description: This report discusses the following topics: Tritium breeding measurements and analysis; induced radioactivity measurements and analysis; and nuclear heating measurements and analysis. (LSP)
Date: June 1, 1991
Creator: Abdou, M. A.
Partner: UNT Libraries Government Documents Department
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Magnetic Fusion Energy Plasma Interactive and High Heat Flux Components. Volume II. Technical Assessment of the Critical Issues and Problem Areas in High Heat Flux Materials and Component Development

Description: A technical assessment of the critical issues and problem areas for high heat flux materials and components (HHFMC) in magnetic fusion devices shows these problems to be of critical importance for the successful operation of near-term fusion experiments and for the feasibility and attractiveness of long-term fusion reactors. A number of subgroups were formed to assess the critical HHFMC issues along the following major lines: (1) source conditions, (2) systems integration, (3) materials and pro… more
Date: June 1, 1984
Creator: Abdou, M. A.; Boyd, R. D.; Easor, J. R.; Gauster, W. B.; Gordon, J. D.; Mattas, R. F. et al.
Partner: UNT Libraries Government Documents Department
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Numerical Studies on Soliton Propagation in the Dielectric Media by the Nonlinear Lorentz Computational Model

Description: Soliton propagation in the dielectric media has been simulated by using the nonlinear Lorentz computational model, which was recently developed to study the propagation of electromagnetic waves in a linear and a nonlinear dielectric. The model is constructed by combining a microscopic model used in the semi-classical approximation for dielectric media and the particle model developed for the plasma simulations. The carrier wave frequency is retained in the simulation so that not only the envelo… more
Date: June 1, 1994
Creator: Abe, H. & Okuda, H.
Partner: UNT Libraries Government Documents Department
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Numerical studies on the electromagnetic properties of the nonlinear Lorentz Computational model for the dielectric media

Description: We study linear and nonlinear properties of a new computer simulation model developed to study the propagation of electromagnetic waves in a dielectric medium in the linear and nonlinear regimes. The model is constructed by combining a microscopic model used in the semi-classical approximation for the dielectric media and the particle model developed for the plasma simulations. It is shown that the model may be useful for studying linear and nonlinear wave propagation in the dielectric media.
Date: June 1, 1994
Creator: Abe, H. & Okuda, H.
Partner: UNT Libraries Government Documents Department
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Preliminary Measurement of Prompt D+- and D*+- Meson Production and D*+- Spin Alignment in Hadronic Z0 Decays

Description: The authors have measured the production rates as a function of scaled energy x of prompt charmed pseudoscalar D{sup {+-}} and vector D*{sup {+-}} mesons in hadronic Z{sup 0} decays. The prompt signal components were isolated from the background of D mesons from B hadron decays using impact parameters of reconstructed D{sup {+-}} {yields} K{sup {minus_plus}}{pi}{sup {+-}}{pi}{sup {+-}} and D*-daughter D{sup 0} {yields} K{sup {minus}}{pi}{sup +} and D{sup 0} {yields} K{sup {minus}}{pi}{sup +}{pi… more
Date: June 1, 1997
Creator: Abe, K.; Abe, K.; Akagi, T. & Collaboration, SLD
Partner: UNT Libraries Government Documents Department
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Performance of the CRID at SLD

Description: This paper describes the performance of a large 4{pi} Cherenkov Ring Imaging Detector (CRID) in the SLD experiment at the SLC at SLAC. We compare the most recent SLD results with those obtained during the R&D period, discuss various design features, and highlight some specific lessons derived from three years of operation.
Date: June 1, 1993
Creator: Abe, K.; Antilogus, P. & Aston, D.
Partner: UNT Libraries Government Documents Department
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Geotechnical characteristics of bentonite/sandy silt mixes for use in waste disposal sites

Description: The coefficient of consolidation for bentonite/sandy silt ratios of 0.04 to 0.14 decreases inversely proportional with the square of that ratio, whereas the compression index, the swelling index, and the permeability change index increase with increasing bentonite ratio. A strong relationship also exists between the void ratio and the logarithm of the applied stress for any given bentonite ratio. The empirical linear relationship between the void ratio and the logarithm of the applied stress, d… more
Date: June 1, 1984
Creator: Abeele, W. V.
Partner: UNT Libraries Government Documents Department
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Electrodeposition research progress report

Description: This report contains a review of this work conducted by the Electrodeposition Group for the last six months. Pictures and a discussion of the method used to convert production solutions to postum to hydrofluoride acid solutions of postum are given. Attempts to plate postum in an inert atmosphere by remote control have been made. As yet no successful runs have been completed. Standardization of normal calomel electrodes by comparison to silver-silver chloride electrodes and to hydrogen electrode… more
Date: June 1, 1948
Creator: Abel, W.; Bell, R. & Neibel, C.
Partner: UNT Libraries Government Documents Department
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