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Formulas for one-dimensional local properties for molecular-dynamics simulations of shock waves (open access)

Formulas for one-dimensional local properties for molecular-dynamics simulations of shock waves

Formulas are derived for the mass, momentum, and energy densities, the xx component of the pressure tensor P/sup xx/, and the x component of the heat flux Q/sup x/. The formulas relate these local properties to the masses, positions, and velocities of the constituent particles making up the system and are in a usable form for molecular-dynamics simulations without approximation. The formulas for P/sup xx/ and Q/sup x/ avoid the infinite series found in the formulas of Irving and Kirkwood.
Date: January 8, 1981
Creator: Hardy, R.J.
System: The UNT Digital Library
Evaluated nuclear data library (open access)

Evaluated nuclear data library

The Lawrence Livermore National Laboratory (LLNL) collection of evaluated data for neutron-, photon-, and charged-particle-induced reactions is maintained in a computer-oriented system. In this report we recount the history of Evaluated Nuclear Data Library, describe the methods of evaluation, and give examples of input and output representation of the data.
Date: October 8, 1981
Creator: Howerton, R.J.; Dye, R.E. & Perkins, S.T.
System: The UNT Digital Library
Plasma effects in high frequency radiative transfer (open access)

Plasma effects in high frequency radiative transfer

This paper is intended as a survey of collective plasma processes which can affect the transfer of high frequency radiation in a hot dense plasma. We are rapidly approaching an era when this subject will become important in the laboratory. For pedagogical reasons we have chosen to examine plasma processes by relating them to a particular reference plasma which will consist of fully ionized carbon at a temperature kT=1 KeV (10/sup 70/K) and an electron density N = 3 x 10/sup 23/cm/sup -3/, (which corresponds to a mass density rho = 1 gm/cm/sup 3/ and an ion density N/sub i/ = 5 x 10/sup 22/ cm/sup -3/). We will consider the transport in such a plasma of photons ranging from 1 eV to 1 KeV in energy. Such photons will probably be frequently used as diagnostic probes of hot dense laboratory plasmas.
Date: February 8, 1981
Creator: Alonso, C.T.
System: The UNT Digital Library
Bio-Oxidation of Thiocyanates Typical of Coal Conversion Effluents. Final Report (open access)

Bio-Oxidation of Thiocyanates Typical of Coal Conversion Effluents. Final Report

Thiocyanates have been found in most coal conversion and coke plant effluents. The objectives of this study were to develop data for the biological degradation fate kinetics of thiocyanate removal, and to develop material balance information for the fate of sulfur and nitrogen resulting from such bio-decomposition of aqueous thiocyanates. A literature review of thiocyanate bio-degradation indicates that while much biochemistry information is available, little information in the biological processing arena is known. Based on both batch and continuous culture experiments utilizing an activated sludge type of system with strictly thiocyanate degradating organisms, the specific utilization rate for SCN degradation was found to follow a substrate inhibition biokinetic relationship as: d(SCN)/dt-X = 2.24/(1 + (5/SCN) + (SCN/1340)/sup 6/) where; d(SCN)/dt-X = lb SCN used/lb biomass-day, SCN = mg/L SCN in effluent. The observed biomass sludge production rate was quantified as a function of sludge age in the bio-reactor. The major metabolic by-products of SCN aerobic biodegradation are ammonia and sulfate, with such formation being stochiometric with SCN. High levels of SCN in coal conversion and Stretford system effluents may lead to biological nitrification process requirements to be added to the wastetreatment scheme for compliance with BAT effluent ammonia discharge restrictions.
Date: January 8, 1981
Creator: Neufeld, R. D.; Mattson, L. & Lubon, P.
System: The UNT Digital Library
Geothermal heating from Pinkerton Hot Springs at Colorado Timberline Academy, Durango, Colorado. Final technical report (open access)

Geothermal heating from Pinkerton Hot Springs at Colorado Timberline Academy, Durango, Colorado. Final technical report

The efforts to establish a greater pool of knowledge in the field of low temperature heat transfer for the application of geothermal spring waters to space heating are described. A comprehensive set of heat loss experiments involving passive radiant heating panels is conducted and the results presented in an easily interpretable form. Among the conclusions are the facts that heating a 65 to 70 F/sup 0/ space with 90 to 100 F/sup 0/ liquids is a practical aim. The results are compared with the much lower rates published in the American Society of Heating Refrigeration and Air Conditioning Engineers SYSTEMS, 1976. A heat exchange chamber consisting of a 1000 gallon three compartment, insulated and buried tank is constructed and a control and pumping building erected over the tank. The tank is intended to handle the flow of geothermal waters from Pinkerton Hot Springs at 50 GPM prior to the wasting of the spring water at a disposal location. Approximately 375,000 Btu per hour should be available for heating assuming a 15 F/sup 0/ drop in water temperature. A combination of the panel heat loss experiments, construction of the heat exchange devices and ongoing collection of heat loss numbers adds to …
Date: November 8, 1981
Creator: Allen, C. C.; Allen, R. W. & Beldock, J.
System: The UNT Digital Library
Texas Turkey Poults: For Week Ending January 3, 1981 (open access)

Texas Turkey Poults: For Week Ending January 3, 1981

Weekly report of the Texas Crop and Livestock Reporting Service on turkey poult numbers in Texas and compared with other states. It includes compiled statistics across six consecutive weeks, from the week ending December 6 to the week ending January 3, during 1980 and 1981 for turkey eggs set and poults hatched.
Date: January 8, 1981
Creator: Texas Crop and Livestock Reporting Service
System: The Portal to Texas History
Texas Turkey Poults: For Week Ending October 3, 1981 (open access)

Texas Turkey Poults: For Week Ending October 3, 1981

Weekly report of the Texas Crop and Livestock Reporting Service on turkey poult numbers in Texas and compared with other states. It includes compiled statistics across six consecutive weeks during two years for turkey eggs set and poults hatched.
Date: October 8, 1981
Creator: Texas Crop and Livestock Reporting Service
System: The Portal to Texas History
Recruiting, Retention, and Quality in the All-Volunteer Force (open access)

Recruiting, Retention, and Quality in the All-Volunteer Force

This report highli8hts some of the major issues of recruiting, retention, and quality raised by the transition to an All-Volunteer Force (AVF) and efforts to maintain it in the 1970s and 1980s. The strategic and political basis of current military manpower policy provides the framework for a discussion of quantitative, qualitative, and analytical and administrative issues regarding the A'TF.
Date: June 8, 1981
Creator: Goldich, Robert L.
System: The UNT Digital Library