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Cratering rates from lunar xenospherules

Description: The goal of this project is to obtain the time history of impacts on the moon, with emphasis on recent impacts. In particular, the project could prove (or disprove) the existence of comet sores and provide the dates when they occurred.
Date: May 25, 1993
Creator: Muller, R. A.
Partner: UNT Libraries Government Documents Department
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Electric power monthly, May 1993

Description: The Electric Power Monthly (EPM) is prepared by the Survey Management Division; Office of Coal, Nuclear, Electric and Alternate Fuels, Energy Information Administration (EIA), Department of Energy. This publication provides monthly statistics at the US, Census division, and State levels for net generation, fossil fuel consumption and stocks, quantity and quality of fossil fuels, cost of fossil fuels, electricity sales, revenue, and average revenue per kilowatthour of electricity sold. Data on n… more
Date: May 25, 1993
Partner: UNT Libraries Government Documents Department
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Inhibition of retrogressive reactions in coal/petroleum co-processing. Final technical report

Description: The objective of this study was to examine the processes in coal/petroleum coprocessing systems which led to coke formation. Specifically, the interactions between the petroleum residue and coal, leading to retrogressive products, were investigated. Five coals were reacted with five model compounds in order to investigate the coal conversions in a variety of solvents and to determine the role of the solvent in promoting or inhibiting coal conversion. The selected model compounds range from para… more
Date: May 25, 1993
Creator: Schobert, H. H. & Tomic, J.
Partner: UNT Libraries Government Documents Department
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High temperature alkali corrosion of ceramics in coal gas. Quarterly progress report No. 7, March 1, 1993--June 1, 1993

Description: Corrosion kinetics of SiC were investigated from 950 to 1100C at 0.63 vol% alkali vapor concentration. Corrosion rate in alkali is 10{sup 4} to 10{sup 5} times faster than oxidation rate of SiC in air. Activation energy of the alkali corrosion is 406 kj/mol, indicating a high sensitivity to temperature changes. Overall reaction appears to be controlled by the oxidation of SiC. The alkali corrosion kinetics of Si{sub 3}N{sub 4} from 950 to 1050{degrees}C were also examined in the same atmosphere… more
Date: May 25, 1993
Creator: Pickrell, G. R.; Sun, T. & Brown, J. J.
Partner: UNT Libraries Government Documents Department
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Quasi-elastic neutron scattering studies of protein dynamics. Progress report, November 1, 1992--May 25, 1993

Description: Results that shed new light on the study of protein dynamics were obtained by quasi-elastic neutron scattering. The triple axis instrument H-9 supplied by the cold source was used to perform a detailed study of the quasi-elastic spectrum and the Debye-Waller factor for trypsin in powder form, in solution, and in crystals. A preliminary study of myoglobin crystals was also done. A new way to view the results of quasi-elastic scattering experiments is sketched, and the data on trypsin are present… more
Date: May 25, 1993
Creator: Rorschach, H. E.
Partner: UNT Libraries Government Documents Department
open access

Quasi-elastic neutron scattering studies of protein dynamics

Description: Results that shed new light on the study of protein dynamics were obtained by quasi-elastic neutron scattering. The triple axis instrument H-9 supplied by the cold source was used to perform a detailed study of the quasi-elastic spectrum and the Debye-Waller factor for trypsin in powder form, in solution, and in crystals. A preliminary study of myoglobin crystals was also done. A new way to view the results of quasi-elastic scattering experiments is sketched, and the data on trypsin are present… more
Date: May 25, 1993
Creator: Rorschach, H.E.
Partner: UNT Libraries Government Documents Department
open access

D0 Solenoid Upgrade Project: Pressure Ratings for Some Chimney and Control Dewar Componenets

Description: Pressure rating calculations were done for some of the chimney and control dewar components. This engineering note documents these calculations. The table below summarizes the components looked at, and what pressure rating are. The raw engineering calculations for each of the components is given.
Date: May 25, 1993
Creator: Rucinski, R.
Partner: UNT Libraries Government Documents Department
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