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The Effect of Chemical Additives on the Synthesis of Ethanol

Description: The objective of this research is to elucidate the role of various chemical additives on ethanol synthesis over Rh- and Ni-based catalysts. Chemical additives used for this study will include S, P, Ag, Cu, Mn, and Na which have different electronegativeities. The effect of additives on the surface state of the catalysts, heat of adsorption of reactant molecules, reaction intermediates, reaction pathways, reaction kinetics, and product distributions is/will be investigated by a series of experim… more
Date: April 30, 1989
Creator: Chuang, S. S. C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Pacific Northwest Laboratory quarterly report to USERDA Nuclear Research and Applications Division, for October--December 1975. [/sup 90/SrF/sub 2/]

Description: At Hanford, strontium is separated from the high-level waste, converted to the fluoride, and doubly encapsulated in small, high-integrity containers for subsequent long-term storage. The fluoride conversion, encapsulation and storage take place in the Waste Encapsulation and Storage Facilities (WESF). The encapsulated strontium fluoride represents an economical source of /sup 90/Sr if the WESF capsule can be licensed for heat source applications under anticipated use conditions. The objectives … more
Date: January 1, 1976
Creator: Fullam, H. T. & Harmon, K. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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A Study of Strange and Strangeonium States Produced in LASS (Large Aperture Superconducting Solenoid)

Description: Results are presented from the analysis of several final states from a high-sensitivity (4 ev/nb) study of inelastic K/sup -/p interactions at 11 GeV/c carried out in the LASS Spectrometer at SLAC. New information is reported on leading and underlying K* states, and the strangeonium states produced by hypercharge exchange exchange are compared and contrasted with those observed in radiative decays of the J/psi. 8 refs., 15 figs.
Date: January 1, 1986
Creator: Aston, D.; Awaji, N.; Bienz, T.; Bird, F.; D'Amore, J.; Dunwoodie, W. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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TRUEX hot demonstration

Description: In FY 1987, a program was initiated to demonstrate technology for recovering transuranic (TRU) elements from defense wastes. This hot demonstration was to be carried out with solution from the dissolution of irradiated fuels. This recovery would be accomplished with both PUREX and TRUEX solvent extraction processes. Work planned for this program included preparation of a shielded-cell facility for the receipt and storage of spent fuel from commercial power reactors, dissolution of this fuel, op… more
Date: April 1, 1990
Creator: Chamberlain, D. B.; Leonard, R. A.; Hoh, J. C.; Gay, E. C.; Kalina, D. G. & Vandegrift, G. F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Synthesis and characterization of metal--metal bonded dimers of tantalum and tungsten

Description: A search for innovative synthetic routes to new metal-metal bonded metal-halide clusters resulted in isolation of two completely independent dimeric species. The syntheses and characterizations of Ta/sub 2/X/sub 6/(SC/sub 4/H/sub 8/)/sub 3/ (X = Cl, Br) and ((n-C/sub 3/H/sub 7/)/sub 4/N)/sub 2/(W/sub 2/Br/sub 9/) followed entirely different experimental routes, yet occasionally similar properties linked the two projects. (auth)
Date: December 1, 1975
Creator: Templeton, J. L.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries Government Documents Department
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Power threshold for neutral beam current drive

Description: For fully noninductive current drive in tokamaks using neutral beams, there is a power and density threshold condition, setting a minimum value for P{sup 3/2}/n{sup 2}. If this condition is not met, stationary state cannot occur, and a tokamak discharge will collapse. This is a consequence of the coupling between current and electron temperature, or between current drive efficiency and energy confinement time. 4 figs.
Date: October 2, 1989
Creator: Politzer, P. A. & Porter, G. D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Fundamentals of wetting and bonding between ceramics and metals

Description: The conditions and the reactions that lead to the realization of chemical equilibrium at interfaces and thus to chemical bonding is discussed with specific attention to the platinum/glass and gold/glass systems. Wetting of the solid by the liquid and formation of an interface are part of the problem. Sessile drop experiments and their interpretation are included. 10 figs, 12 refs. (GHT)
Date: January 21, 1977
Creator: Pask, J. A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Uses of lunar sulfur

Description: Sulfur and sulfur compounds have a wide range of applications for their fluid, electrical, chemical and biochemical properties. Although low in abundance on the Moon (/approximately/0.1% in mare soils), sulfur is surface-correlated and relatively extractable. Co-production of sulfur during oxygen extraction from ilmenite-rich soils could yield sulfur in masses up to 10% of the mass of oxygen produced. Sulfur deserves serious consideration as a lunar resource. 29 refs., 3 figs.
Date: January 1, 1988
Creator: Vaniman, D. T.; Pettit, D. R. & Heiken, G.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Brookhaven superconducting cable test facility

Description: Construction has started on an outdoor testing station for flexible ac superconducting power transmission cables. It is intended to serve as an intermediate step between laboratory-scale experiments and qualification testing of prototype-scale cables. The permanent equipment includes a 500 W supercritical helium refrigerator using a screw compressor and multistage turbine expanders. Helium storage for 250,000 cu ft of helium at 250 psi is provided. Initially, the cables will be tested in a hori… more
Date: August 17, 1976
Creator: Forsyth, E. B. & Gibbs, R. J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Study of the effects of radiation of nucleic acids and related compounds. Progress report, August 15, 1975--August 14, 1976

Description: Ionizing radiation produces genetic effects in biological systems. Since genetic effects are usually the result of modifications of DNA or sometimes of RNA, interest is being centered on the chemical and physical nature of radiation-induced lesions to nucleic acids and their components. These investigations have revealed the enormous complexity of chemical events and the possible degradation of nucleic acids by strand breakage. Therefore, work in the ionization radiation of nucleic acids has pr… more
Date: April 1, 1976
Creator: Wang, S. Y.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Analysis of air-to-air heat exchanger performance data taken under the Residential Standards Demonstration Program

Description: The Bonneville Power Administration (BPA) initiated the Residential Standards Demonstration Program (RSDP) in 1983 to determine the costs and thermal performance improvements associated with increased levels of thermal integrity in new residences, as proposed by the Northwest Power Planning Council in the Model Conservation Standards (MCS). The program resulted in the construction of approximately 430 new residences, built to thermal performance standards, as dictated by the MCS in each of thre… more
Date: June 1, 1990
Creator: Drost, M. K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Atomic physics experiments with stored cooled heavy ion beams

Description: The wide ranging interest in the development of heavy ion synchrotrons with electron beam cooling is evident from the number of projects presently under way. Although much of the initial motivation for these rings stemmed from nuclear and particle physics, a considerable amount of atomic physics experimentation is planned. This paper surveys some of the new opportunities in atomic physics which may be made available with storage ring systems. 25 refs., 3 tabs.
Date: January 1, 1986
Creator: Datz, S.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Automated array assembly. Annual report

Description: The goal of the ERDA/JPL LSSA program of $0.50/W selling price for array modules in 1986 turns out to have been remarkably appropriate. An extensive and detailed analysis of technologies which could be related to array module manufacturing was completed and a minimum manufacturing cost in a highly automated line of $0.30/W was found assuming the silicon is free. The panels are of a double glass construction and are based on round wafers. Screen printed silver has been used as the metallization … more
Date: May 1, 1977
Creator: Williams, B. F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Shielding methods development in the United States

Description: A generalized shielding methodology has been developed in the U.S.A. that is adaptable to the shielding analyses of all reactor types. Thus far used primarily for liquid-metal fast breeder reactors, the methodology includes several component activities: (1) developing methods for calculating radiation transport through reactor-shield systems; (2) processing cross-section libraries; (3) performing design calculations for specific systems; (4) performing and analyzing pertinent integral experimen… more
Date: January 1, 1977
Creator: Mynatt, F. R.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Microinstabilities in Complex Magnetic Field Geometries and High- Beta. Sheared Sheath Structure. Progress Report, June 1, 1975--February 27, 1976

Description: A new approach for the solution of the Vlasov equation for complex magnetic field geometries has been developed using operator techniques. The general approach is illustrated by determining the perturbed distribution function and density operator for the problem of shear stabilization of drift waves for transverse and arbitrary directions of propagation. The ensuing corrections to stability criteria of current theories are obtained for certain domains of physical parameters. Preliminary work on… more
Date: February 1, 1976
Creator: Bakshi, P. & Kalman, G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Investigation of quantification of SIMS data: analysis of NBS glass and iron standards

Description: Thirteen NBS glass and five NBS iron standards have been analyzed by the ion microprobe mass analyzer (IMMA) in the authors' laboratory. Data from all standards have been processed via a theoretical model and a pragmatic comparative approach (sensitivity factor). Results from the two approaches are compared, and detailed charts and plots are presented to assist in interpretation and to serve as guides in future work.
Date: June 1, 1977
Creator: Smith, D. H. & Christie, W. H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Global seismic effects of basin-forming impacts

Description: Models of the thermal evolution of the moon and the terrestrial planets suggest that basin-forming impacts occurred when the planets had partially molten interiors overlain by thickening lithospheres, comparable in thickness to the basin radii. The effects of large impacts on planetary surfaces were investigated using a Lagrangian computer program which treats shock wave propagation and includes the effects of material strength, elastic-plastic behavior and material failure. The computer code a… more
Date: January 1, 1977
Creator: Hughes, H. G.; App, F. N. & McGetchin, T. R.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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ALSC cutter. Period covered: January--March 1976. Normal process development endeavor No. 202. [Aluminum sheath linear shaped charge (ALSC)]

Description: Aluminum sheath linear shaped charge (ALSC) containing HNS-II core explosive was specified as the explosive component in the MC 3125 design. Technology and tooling for cutting and forming ALSC, HNS II, 5.3 g/m core load, are described as preliminary developments to the manufacturing process.
Date: January 1, 1976
Creator: Schmitz, G. T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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High Pressure Synthesis Gas Fermentation

Description: The construction of the high pressure gas phase fermentation system has been completed. Photographs of the various components of the system are presented, along with an operating procedure for the equipment.
Date: January 1, 1992
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Emission and absorption x-ray edges of Li

Description: Measurements of the K X-ray absorption and emission edges of Li are reported. They were made with the same spectrometer at the NBS storage ring and serve to establish a 0.1 eV separation between the edges with no possibility of instrument calibration error. These results are compared with recent theories of Almbladh and Mahan describing the effects of incomplete phonon relaxation about the core hole. It is concluded that these theories give a satisfactory explanation of the data.
Date: January 1, 1977
Creator: Callcott, T A; Arakawa, E T & Ederer, D L
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Transient response of three-layered rings

Description: Hamilton's principle is used to derive equations of motion for a linear elastic three-layered ring. The theory includes the effects of shear deformation and rotatory inertia in each layer and radial strain effects in the middle layer. A convenient computational technique is developed for transient response evaluation without resorting to finite-difference or finite-element approximations. A companion experimental study was conducted using three different rings. All rings had aluminum inner and … more
Date: February 1, 1975
Creator: Sagartz, M. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Critical phenomena in thick films of a binary liquid mixture

Description: The first experimental data on the behavior of a critical system as it approaches two dimensionality are presented. Measurements of the bulk coexistence curve by use of refractive index techniques were done on the binary fluid mixture methanol--cyclohexane. These measurements gave the critical exponent ..beta.. = 0.326 +- 0.003, which agrees with recent Ising-model calculations. This same binary fluid mixture was then constrained between two highly reflective, optically flat pieces of fused sil… more
Date: January 1, 1976
Creator: Jacobs, D. T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Simple method to unfold NE 213 and stilbene neutron spectral data

Description: A very simple method is proposed wherein recoil proton scintillation data are reduced using the derivative unfolding technique. The approximations described require minimal calculation or storage and may be readily implemented on a mini computer. A digital filter is incorporated which yields a smoothed approximation to the slope of the pulse-height distribution, with error estimates. In order to accurately represent the scintillator light output without introducing discontinuities in the unfold… more
Date: April 1, 1976
Creator: Slaughter, D. R.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Near-term electric vehicle program: Phase I, final report

Description: A final report is given for an Energy Research and Development Administration effort aimed at a preliminary design of an energy-efficient electric commuter car. An electric-powered passenger vehicle using a regenerative power system was designed to meet the near-term ERDA electric automobile goals. The program objectives were to (1) study the parameters that affect vehicle performance, range, and cost; (2) design an entirely new electric vehicle that meets performance and economic requirements;… more
Date: August 1, 1977
Creator: Rowlett, B. H. & Murry, R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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