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Office of Scientific & Technical Information Technical Reports
1,601
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156
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103
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33
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10
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6
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4
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3
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2-mm microwave interferometer
A 2-mm microwave interferometer has been developed, and phase shift measurements have been made on the Baseball II experiment. The interferometer system employs a 140-GHz receiver for double down conversion of the plasma signal to a 60-MHz, IF frequency. The 140-GHz references signal is also down-converted and compared with the plasma signal to provide the desired phase change of the signal passing through the plasma. A feedback voltage from a 60-MHz discriminator to a voltage-controlled oscillator in the receiver provides frequency stability of the 60-MHz IF signals.
Date:
March 1, 1977
Creator:
Futch, A. H. & Mortensen, W. K.
System:
The UNT Digital Library
3-D nonlinear evolution of MHD instabilities
The nonlinear evolution of ideal MHD internal instabilities is investigated in straight cylindrical geometry by means of a 3-D initial-value computer code. These instabilities are characterized by pairs of velocity vortex cells rolling off each other and helically twisted down the plasma column. The cells persist until the poloidal velocity saturates at a few tenths of the Alfven velocity. The nonlinear phase is characterized by convection around these essentially fixed vortex cells. For example, the initially centrally peaked temperature profile is convected out and around to form an annulus of high temperature surrounding a small region of lower temperature. Weak, centrally localized instabilities do not alter the edge of the plasma. Strong, large-scale instabilities, resulting from a stronger longitudinal equilibrium current, drive the plasma against the wall. After three examples of instability are analyzed in detail, the numerical methods and their verification are discussed.
Date:
March 1, 1977
Creator:
Bateman, G.; Hicks, H. R. & Wooten, J. W.
System:
The UNT Digital Library
10-75-kWe-reactor-powered organic Rankine-cycle electric power systems (ORCEPS) study. Final technical report
This 10-75 kW(e) Reactor-ORCEPS study was concerned with the evaluation of several organic Rankine cycle energy conversion systems which utilized a /sup 235/U-ZrH reactor as a heat source. A liquid metal (NaK) loop employing a thermoelectric converter-powered EM pump was used to transfer the reactor energy to the organic working fluid. At moderate peak cycle temperatures (750/sup 0/F), power conversion unit cycle efficiencies of up to 25% and overall efficiencies of 20% can be obtained. The required operating life of seven years should be readily achievable. The CP-25 (toluene) working fluid cycle was found to provide the highest performance levels at the lowest system weights. Specific weights varies from 100 to 50 lb/kW(e) over the power level range 10 to 75 kW(e). (DLC)
Date:
March 30, 1977
Creator:
unknown
System:
The UNT Digital Library
42-inch diameter producer stream gas clean-up system mathematical model
The purpose of this work is to develop a computer simulation program that will expedite the development and aid in the optimization and scale-up of the Morgantown Energy Technology Center (METC) low-Btu coal gasifier system. The gasifier system includes the METC low-Btu fixed-bed gasifier and the producer gas clean-up system. The producer Gas Clean-Up System Simulation Program, the subject of this report, develops the mathematical models and computational procedures for the material balance calculation around each of the seven major process units that constitute the METC producer gas clean-up system: gas cyclone, humidifier, electrostatic precipitator, hydrolysis unit, direct cooler, Stretford process, and final wash tower.
Date:
March 1, 1979
Creator:
unknown
System:
The UNT Digital Library
50 kW on-site concentrating solar photovoltaic power system. Phase I: design. Final report, 1 June 1978-28 February 1979
This contract is part of a three phase program to design, fabricate, and operate a solar photovoltaic electric power system with concentrating optics. The system will be located beside a Local Operating Headquarters of the Georgia Power Company in Atlanta, Georgia and will provide part of the power for the on-site load. Fresnel lens concentrators will be used in 2-axis tracking arrays to focus solar energy onto silicon solar cells producing a peak power output of 56 kW. The present contract covers Phase I which has as its objective the complete design of the system and necessary subsystems.
Date:
March 30, 1979
Creator:
Pittman, P. F.
System:
The UNT Digital Library
236-Z canyon utilization study
The 236-Z canyon contains equipment for repurification of plutonium and recovery of plutonium from scrap material. To meet production requirements of Fast Flux Test Facility/Clinch River Breeder Reactor oxide with the existing plant, several new pieces of equipment will be needed in the future. More storage space and a better accountability system are needed to support this increased production. The available canyon space needs to be utilized to its fullest in order to accommodate the new equipment. The purpose of this document is to identify the new pieces of equipment, show how they fit into the flowsheet, and locate them in the canyon.
Date:
March 8, 1977
Creator:
Dixon, D.R
System:
The UNT Digital Library
1964 computer run on a laser-imploded capsule
WAZER Alchemy 7b (WA-7b) is a WAZER calculation of a laser-driven micro-implosion of a spherical capsule consisting of a thin gold pusher surrounded by a thick (frozen) deuterium ablator. The properties of the target capsule and the shape of the laser pulse used to irradiate it are described.
Date:
March 28, 1973
Creator:
Kidder, Ray E.
System:
The UNT Digital Library
1973 Environmental Monitoring Report
>Results from radiation monitoring during 1973 in the environment of the Brookhaven National Laboratory are presented. Data are included on: the gross alpha and BETA activity and content of tritium and gamma-emitting radionuclides in surface air; gross BETA activity and gamma and tritium content in atmospheric precipitation; activities and concentration of gamma emitters in liquid effiuents and ground water; gross BETA , tritium and /sup 90/Sr in effluents; gross BETA and tritl um in surface waters; /sup 90/Sr and gamma- emitting radionuclides in river ecosystem; gross alpha , gross BETA , tritium, / sup 90/Sr, and /sup 137/Cs in ground and well water; /sup 137/Cs, K, /sup 131/I, and /sup 90/Sr content in area milk; and gamma-emitting radionuclides in soils and grasses. (LCL)
Date:
March 1, 1974
Creator:
Hull, A. P. & Ash, J. A.
System:
The UNT Digital Library
1975 energy conditions in the South
This report depicts energy supply and demand conditions in the South in 1975 and highlights differences in production and utilization patterns relative to the United States (some of the consumption data is for 1974). Significant changes during the previous three years are noted to provide continuity with the predecessor report, Energy Conditions in the South: 1972. The most important changes are the substantial increase in nuclear generation of electricity, the absolute and relative decline in oil and gas production, and the increase in per capita energy consumption relative to the nation. Each state within the region is described in detail to ascertain important sub-regional differences in energy conditions. The intent is to provide a description rather than analysis of regional energy patterns, noting variations and emphasizing the comparative advantages of the South. Such a presentation can yield insight into the future role of the region in contributing to the economic growth and welfare of the nation as its natural resource base is depleted and the transition to alternative energy sources is made.
Date:
March 1, 1978
Creator:
Rice, Patricia L.
System:
The UNT Digital Library
1976 annual summary report
Abstracts of papers published during the previous calendar year, arranged in accordance with the project titles used in the USDOE Schedule 189 Budget Proposals, are presented. The collection of abstracts supplements the listing of papers published in the Schedule 189. The following subject areas are represented: high-energy physics; nuclear physics; basic energy sciences (nuclear science, materials sciences, solid state physics, materials chemistry); molecular, mathematical, and earth sciences (fundamental interactions, processes and techniques, mathematical and computer sciences); environmental research and development; physical and technological studies (characterization, measurement and monitoring); and nuclear research and applications.
Date:
March 1, 1978
Creator:
unknown
System:
The UNT Digital Library
1978 herbaceous production study
Herbaceous productivity studies on the Geokinetics Oil Shale Project Research site in Uintah County, Utah were begun during the summer of 1978. These studies were designed to assess the amount of biomass produced by herbaceous vegetation in each of the vegetation types occurring on the site. Measurements were made in each of the control and treatment plots established for these types. The results given in this report are those obtained from the analysis of data collected during 1978. The chief objective of the herbaceous productivity study is to determine the amount of herbaceous biomass that is potentially available for use by herbivores on the LOFRECO site. As such, these studies are an intergral part of determining the carrying capacity of the site. The data collected from the 1978 study will be used together with other ecological information to provide a functional description of the site. Of particular importance in this synthesis are the data obtained from shrub utilization studies, phytosociological data, and the quantitative descriptions of the physical environment derived from ecoclimatic measurements. Herbaceous productivity will be monitored during the pre and post disturbance phases of the research site development.
Date:
March 1, 1979
Creator:
Olgeirson, E.R.
System:
The UNT Digital Library
1985 Oil Production of 21 Oil Producing Non-OPEC Countries
This report assesses the possibility of increased oil production from 21 less developed non-OPEC countries (excluding the Middle East and Mexico) by 1985. The forecast is compared with those prepared by the World Bank, the International Energy Agency, and others. The 21 Latin American, African, and Far East (including Asia) countries produce 2.5 million barrels of oil per day (BD) or 4.2% of world production, and they have 21 billion barrels of proved reserves, or 3.2% of the world total. In recent years these countries have consumed 3.1 million BD, some 0.9 million barrels in excess of their production. By 1985, the 21 countries may produce 3.9 million BD, an average annual increase of 5.0%; however, demand is expected to increase at an annual rate of 3.5% to 4.4 million BD. The net effect is that the 1985 aggregated supply-demand balance will be in deficit, by nearly 560 thousand BD, compared to slightly more than 930 thousand BD in 1976.
Date:
March 1, 1979
Creator:
Warner, Arthur J.
System:
The UNT Digital Library
93rd Congress, First Session, House Resolution 6168
House resolution number 6168 to amend the Economic Stabilization Act of 1970. This amendments discussed include adding new sections after section 203 to stabilize prices, wages and interest rates.
Date:
March 27, 1973
Creator:
United States. Congress. House.
System:
The Portal to Texas History
Abortion: Selected References
This report provides a bibliography of resources related to abortion published between 1969 and 1971.
Date:
March 23, 1971
Creator:
Klebe, Edward R.
System:
The UNT Digital Library
Absorption of uranium-233, neptunium-237, plutonium-238, americium-241, curium-244, and einsteinium-253 from the gastrointestinal tract of newborn and adult rats
This report addresses a study of the absorption of the nitrates and oxides by adult rats.
Date:
March 1975
Creator:
Sullivan, M. F.; Crosby, A. L. & Thompson, R. C.
System:
The UNT Digital Library
Accelerated iteration schemes for transonic flow calculations using fast Poisson solvers
Results obtained by using a fast Poisson solver to accelerate the rate of convergence of the iterative scheme are described. A fast iterative method for transonic flow calculations is formulated first, and then application is made to the transonic potential flow equation in a mapped domain. It is concluded that the use of a fast elliptic solver in combination with relaxation is an effective way to accelerate the convergence of transonic flow calculations, particularly when a marching scheme can be used to treat the supersonic zone in the relaxation process. 3 figures (RWR)
Date:
March 1, 1975
Creator:
Jameson, A
System:
The UNT Digital Library
Acquired immunologic tolerance in chimeras and histocompatibility factors in cattle and their relationship to those in humans. Final report. [Gamma radiation]
During the course of this project we have studied 35 pairs of chimeric cattle twins. It is now clear that fractionated doses of whole-body /sup 60/Co irradiation can cause marked shifts in the proportions of the two erythrocyte populations that make up the chimeric mixture. However, it has not been possible to eliminate one of the two cell types and thus abrogate the acquired immunologic tolerance. The results of our extensive skin-grafting experiments are remarkable because they show that a chimeric twin may mount a sufficient immune response to reject its cotwin's skin while remaining completely tolerant to erythropoietic elements of its cotwin. In conjunction with these studies, we have acquired sufficient data to define a major histocompatibility locus in cattle using alloimmune anti-lymphocyte typing sera as well as the mixed lymphocyte culture technic. This project has also yielded a considerable number of new immunogenetic parameters for cattle, monkeys and birds. Such parameters are useful for basic and applied studies in immunology.
Date:
March 1, 1976
Creator:
Stone, W. H.
System:
The UNT Digital Library
Activities of the Department of Energy in Education. A description of programs for schools of the Department of Energy and its predecessor agencies
This report details a description of program for schools of the Department of Energy and its predecessor agencies.
Date:
March 1, 1978
Creator:
unknown
System:
The UNT Digital Library
Activities of the Physical Data Group. [Lawrence Livermore Laboratory]
A system is described in which neutron interaction data are collected from nuclear physics laboratories throughout the world, organized, evaluated, and then stored for easy access in a computer network. Computer codes that use the data to solve neutron interaction problems were also developed. The system supplies reliable up-to-date data, selects specific types of data on request, provides output in a variety of forms (reports, microfiche, microfilm), and functions rapidly and efficiently. 3 figures.
Date:
March 10, 1977
Creator:
Howerton, R. J.
System:
The UNT Digital Library
Additional studies of geothermal district heating for Mammoth Lakes Village, California. Final report, October 1977--March 1978
A field survey of three heating uses: snow melting, jacuzzi pool heating, and swimming pool heating in Mammoth was undertaken. Based on the results, monthly heating capacity factors were calculated and rough designs were prepared for hydronic district heating for each system. Capital cost estimates were prepared for snow melting, jacuzzi pool heating and swimming pool heating systems using LPG and geothermal district heating. It was determined that incorporation of the three additional heating uses in the District Heating System previously defined would require a capacity increase from 52 MWt to 60 MWt to meet peak demands. Energy sales would increase by about 40 percent to 127 million kwh(t) per year. The unit cost for delivered heat at 1977 price levels would decrease from 4.26 cents to 3.22 cents/kwh(t) for an investor owned District Heating System, or from 2.89 cents to 2.24 cents/kwh(t) for public ownership. The total heating costs, including annual costs of customer's heating equipment for a typical building in the Village with district heating, were compared with costs to heat the same building with electricity. The total annual costs for snow melting, jacuzzi heating and swimming pool heating using a 60 MWt District Heating System were compared …
Date:
March 30, 1978
Creator:
Sims, A. V. & Racine, W. C.
System:
The UNT Digital Library
Adsorption on mixtures of ion exchangers
A theoretical study has been made of adsorption on mixtures of ion exchangers. The effect of variables such as the concentration of the ion being adsorbed, the concentration of the supporting electrolyte, loading, the values of the capacities and equilibrium constants for the various exchange processes, and the fraction of each adsorber in the mixture on the observed distribution coefficient has been investigated. A computer program has been written to facilitate the calculation of distribution coefficients for the adsorption of an ion on a given mixture of ion exchangers under a specified set of conditions.
Date:
March 1, 1979
Creator:
Triolo, R. & Lietzke, M. H.
System:
The UNT Digital Library
Advanced development of fine coal desulfurization and recovery technology. Annual technical progress report, October 1 1976--September 1977. [54 references]
Work has been carried out to develop and improve several promising methods for desulfurizing and recovering fine-size coal. These methods included froth flotation, selective oil agglomeration, pelletization, and a chemical desulfurization process which involves leaching fine coal with a hot dilute solution of sodium carbonate containing dissolved oxygen or air under pressure. This process is an oxydesulfurization process which utilizes an alkaline solution instead of an acidic solution for leaching coal. The results of experiments with a small autoclave showed that more sulfur, both organic and inorganic, was removed from several high-sulfur bituminous coals when a dilute solution of alkali was used than when a dilute acid solution was used for leaching under the same conditions of time, temperature, and oxygen partial pressure. On the other hand, the heating value recovery was somewhat higher when acidic solutions were used. Also it was shown that pure oxygen is more effective than air, even though the oxygen partial pressure was kept the same, for oxydesulfurization of coal in either acidic or alkaline solutions. In addition it was found that the removal of organic sulfur by alkaline solutions increased as the oxygen partial pressure was raised. Although small concentrations of alkali were beneficial, …
Date:
March 1, 1978
Creator:
Wheelock, T. D.; Greer, R. T.; Markuszewski, R. & Fisher, R. W.
System:
The UNT Digital Library
Advanced Fuel Cell Development Progress Report: October-December 1977
Quarterly report discussing fuel cell research and development work at Argonne National Laboratory (ANL). This report describes work aimed at understanding and improving the performance of fuel cells having molten alkali-carbonate mixtures as electrolytes; the fuel cells operate at temperatures near 925 K.
Date:
March 1978
Creator:
Ackerman, J. P.; Kinoshita, K.; Finn, P. A.; Sim, J. W. & Nelson, P. A.
System:
The UNT Digital Library
Advanced fuel cell development. Progress report, October--December 1977. [LiAlO/sub 2/ matrix for molten carbonate electrolytes]
Advanced fuel cell research and development activities in Argonne National Laboratory (ANL) during the period October to December 1977 are described. This work has been aimed at understanding and improving the performance of fuel cells having molten alkali-carbonate mixtures as electrolytes; the fuel cells operate at temperatures near 925/sup 0/K. The largest part of this effort has been directed toward development of methods for fabricating and evaluating electrolyte structures for these cells. Cell performance, life, and cost are the criteria of optimization. During this quarter, the desirable physical characteristics of LiAlO/sub 2/ particles, which act to retain the molten carbonates in the electrolyte structure of the cell, have been more clearly defined; a low temperature synthesis of the stable ..gamma..-allotrope of LiAlO/sub 2/ has been devised; an extensive study of LiAlO/sub 2/ stability has begun; and analytical methods have been refined for separating LiAlO/sub 2/, in unaltered form, from carbonates. Testing of various electrolyte structures and other components in 7-cm-dia round cells has provided a means for evaluating new electrolyte developments and verifying a previously developed method for protecting the wet-seal areas of a cell from corrosion.
Date:
March 1, 1978
Creator:
Ackerman, J.P.; Kinoshita, K.; Finn, P.A.; Sim, J.W. & Nelson, P.A.
System:
The UNT Digital Library