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Effect of small additions of silicon, iron, and aluminum on the room-temperature tensile properties of high-purity uranium

Description: Eleven binary and ternary alloys of uranium and very low concentrations of iron, silicon, and aluminum were prepared and tested for room-temperature tensile properties after various heat treatments. A yield strength approximately double that of high-purity derby uranium was obtained from a U-400 ppM Si-200 ppM Fe alloy after beta solution treatment and alpha aging. Higher silicon plus iron alloy contents resulted in increased yield strength, but showed an unacceptable loss of ductility.
Date: November 14, 1983
Creator: Ludwig, R.L.
Partner: UNT Libraries Government Documents Department
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Reaction of hydrogen sulfide with oxygen in the presence of sulfite

Description: Commonly, abatement of hydrogen sulfide emission from a geothermal powerplant requires that hydrogen sulfide dissolved in the cooling water be eliminated by chemical reaction. Oxidation by atmospheric oxygen is the preferred reaction, but requires a suitable catalyst. Nickel is the most potent and thereby cheapest catalyst for this purpose. One mg/L nickel in the cooling water would allow 99% removal of hydrogen sulfide to be attained. A major drawback of catalytic air oxidation is that colloid… more
Date: January 14, 1983
Creator: Weres, O. & Tsao, L.
Partner: UNT Libraries Government Documents Department
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Environmental monitoring at the Lawrence Livermore National Laboratory. 1982 annual report

Description: Environmental monitoring efforts spanned air, water, vegetation and foodstuffs, and radiation doses. Monitoring data collection, analysis, and evaluation are presented for air, soils, sewage, water, vegetation and foodstuffs, milk, and general environmental radioactivity. Non-radioactive monitoring addresses beryllium, chemical effluents in sewage, noise pollution, and storm runoff and liquid discharge site pollutants. Quality assurance efforts are addressed. Five appendices present tabulated d… more
Date: March 14, 1983
Creator: Griggs, K.S.; Gonzalez, M.A. & Buddemeier, R.W.
Partner: UNT Libraries Government Documents Department
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Nonlinear hydrodynamics. Lecture 9

Description: A very sophisticated method for calculating the stability and pulsations of stars which make contact with actual observations of the stellar behavior, hydrodynamic calculations are very simple in principle. Conservation of mass can be accounted for by having mass shells that are fixed with their mass for all time. Motions of these shells can be calculated by taking the difference between the external force of gravity and that from the local pressure gradient. The conservation of energy can be c… more
Date: March 14, 1983
Creator: Cox, A. N.
Partner: UNT Libraries Government Documents Department
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Kinetics of tritium removal from heavy water by exchange with deuterochloroform

Description: A technique was developed to determine the rate and equilibrium constants for the base-catalyzed exchange of tritium from ehavy water to deuterochloroform. An activation energy and entropy were also calculated. These quantities are comparable with those reported in the literature for a similar reaction involving the exchange of deuterium from deuterochloroform to water. It was found that the exchange reaction occurred predominately between the dissolved reactants in the D/sub 2/O and CDCl/sub 3… more
Date: March 14, 1983
Creator: Hsiao, Peter
Partner: UNT Libraries Government Documents Department
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Mythical Maia, ultrashort and 53 PSC variables. Lecture 4

Description: Moving down the main sequence from the ..beta.. Cephei variables, we come to later B-type stars. The suspicion of variability for these stars goes back to Vogel in 1891 who studied the radial velocities of Vega. Since that time there have been numerous studies of Vega (Wisniewski and Johnson 1979, Fernie 1981) and other B and early A stars which hint at variability in both radial velocity and light. Since Struve (1955) discussed these stars 28 years ago, they have been called the Maia stars aft… more
Date: March 14, 1983
Creator: Cox, A. N.
Partner: UNT Libraries Government Documents Department
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First order comparison of numerical calculation and two different turtle input schemes to represent a SLC defocusing magnet

Description: Correcting the dispersion function in the SLC north arc it turned out that backleg-windings (BLW) acting horizontally as well as BLW acting vertically have to be used. In the latter case the question arose what is the best representation of a defocusing magnet with excited BLW acting in the vertical plane for the computer code TURTLE. Two different schemes, the 14.-scheme and the 20.-scheme were studied and the TURTLE output for one ray through such a magnet compared with the numerical solution… more
Date: July 14, 1983
Creator: Jaeger, J.
Partner: UNT Libraries Government Documents Department
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Localized hole effects in inner-shell excitation

Description: Ab initio calculations of valence shell ionization potentials have shown that orbital relaxation and correlation differences usually make contributions of comparable magnitude. In marked contrast to this observation is the situation for deep core ionization, where correlation differences (approx. 1 eV) play a relatively minor role compared to orbital relaxation (approx. 20 eV). Theoretical calculations have shown that this relaxation is most easily described if the 1s-vacancy created by a K-she… more
Date: October 14, 1983
Creator: Rescigno, T. N. & Orel, A. E.
Partner: UNT Libraries Government Documents Department
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Merit Pay for Elementary and Secondary School Teachers: Background Discussion and Analysis of Issues

Description: Considerable national interest has centered on merit pay for elementary and secondary school teachers since the recent release of the educational reform reports. This merit pay paper contains a background discussion, description of alternatives, summary of current and proposed programs, and analysis of evaluation and implementation implications.
Date: September 14, 1983
Creator: Jordan, K. Forbis & Borkow, Nancy B.
Partner: UNT Libraries Government Documents Department
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Education of the Handicapped

Description: Federal involvement in the education of the handicapped increased significantly with the enactment of the Education for All Handicapped Children Act of 1975 (P.L. 94-142) in the 94th Congress. This legislation amended the provisions for State assistance under Part B of the Education of the Handicapped Act (EHA, P.L. 91-230, title VI, as amended) to require that a "free appropriate public education" be available for all handicapped children age 3 through 21 by September 1980. P.L. 94-142 authori… more
Date: November 14, 1983
Creator: Fraas, Charlotte Jones
Partner: UNT Libraries Government Documents Department
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The FTC's Used Car Rule

Description: This report discusses the Federal Trade Commission's (FTC) used car rule, which aims to prevent and discourage oral misrepresentations and deceptive omissions of material facts by those selling used cars concerning warranty coverage and mechanical condition.
Date: October 14, 1983
Creator: Mulock, Bruce K.
Partner: UNT Libraries Government Documents Department
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Supreme Court: Church-State Cases, October 1983 Term

Description: This report provides an assessment of Supreme Court cases from the 1983-85 Term that involve issues involving the free exercise of religion. It provides a detailed review of the case Lynch v. Donnelly, and brief descriptions of twelve other cases that have not been reviewed.
Date: December 14, 1983
Creator: Ackerman, David M.
Partner: UNT Libraries Government Documents Department
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