Resource Type
Collection
Serial/Series Title
United States Department of Energy Grand Junction Office Reports
40
Texas Register
9
Argonne National Laboratory Reports
4
Texas Motor Vehicle Traffic Accident Summaries
4
Flight-Systems Safety Program Progress Report
2
Report (Texas. Department of Water Resources)
2
San Antonio Board of Adjustment Monthly Report
2
San Antonio Board of Review for Historic Districts and Landmarks Monthly Report
2
San Antonio Monthly Minimum Housing Report
2
San Antonio Monthly Permit Report
2
30 More
Country
States
303 Matching Results
Results open in a new window/tab.
Fast-neutron elastic-scattering cross sections of elemental tin
Broad-resolution neutron-elastic-scattering cross sections of elemental tin are measured from 1.5 to 4.0 MeV. Incident-energy intervals are approx. 50 keV below 3.0 MeV and approx. 200 keV at higher energies. Ten to twenty scattering angles are used, distributed between approx. 20 and 160/sup 0/. The experimental results are used to deduce the parameters of a spherical optical-statistical model and they are also compared with corresponding values given in ENDF/B-V.
Date:
July 1, 1982
Creator:
Budtz-Jorgensen, C.; Guenther, P. T. & Smith, A.
Object Type:
Report
System:
The UNT Digital Library
Fast-neutron scattering from elemental cadmium
Neutron differential-elastic-scattering cross sections of elemental cadmium are measured from approx. = 1.5 to 4.0 MeV at incident-neutron energy intervals of 50 to 200 keV and at 10 to 20 scattering angles distributed between approx. = 20 and 160 degrees. Concurrently, lumped-level neutron inelastic-excitation cross sections are measured. The experimental results are used to deduce parameters of an optical-statistical model that is descriptive of the observables and are compared with corresponding quantities given in ENDF/B-V.
Date:
July 1, 1982
Creator:
Smith, A. B. & Guenther, P. T.
Object Type:
Report
System:
The UNT Digital Library
Fast-neutron total and scattering cross sections of niobium
Neutron total cross sections of niobium were measured from approx. = 0.7 to 4.5 MeV at intervals of less than or equal to 50 keV with broad resolution. Differential-elastic-scattering cross sections were measured from approx. = 1.5 to 4.0 MeV at intervals of 0.1 to 0.2 MeV and at 10 to 20 scattering angles distributed between approx. = 20 and 160 degrees. Inelastically-scattered neutrons, corresponding to the excitation of levels at: 788 +- 23, 982 +- 17, 1088 +- 27, 1335 +- 35, 1504 +- 30, 1697 +- 19, 1971 +- 22, 2176 +- 28, 2456 +- (.), and 2581 +- (.) keV, were observed. An optical-statistical model, giving a good description of the observables, was deduced from the measured differential-elastic-scattering cross sections. The experimental-results were compared with the respective evaluated quantities given in ENDF/B-V.
Date:
July 1, 1982
Creator:
Smith, A. B.; Guenther, P. T. & Whalen, J. F.
Object Type:
Report
System:
The UNT Digital Library
Fast-neutron total and scattering cross sections of /sup 103/Rh
Fast-neutron total cross sections of /sup 103/Rh are measured with 30 to 50 keV resolutions from 0.7 to 4.5 MeV. Differential elastic- and inelastic-scattering cross sections are measured from 1.45 to 3.85 MeV. Scattered-neutron groups corresponding to excited levels at 334 +- 13, 536 +- 7, 648 +- 25, 796 +- 20, 864 +- 22, 1120 +- 22, 1279 +- 50, 1481 +- 27, 1683 +- 39, 1840 +- 79, 1991 +- 71 and 2050 (tentative) keV are observed. An optical-statistical model is derived from the elastic-scattering results. The experimental values are compared with comparable quantities given in the ENDF/B-V evaluation.
Date:
July 1, 1982
Creator:
Smith, A. B.; Guenther, P. T. & Whalen, J. F.
Object Type:
Report
System:
The UNT Digital Library
Fate of corrosion products released from stainless steel in marine sediments and seawater. Part 4: Hatteras abyssal red clay
A study in which neutron-activated 347 stainless steel was exposed to surficial sediment from a site in the Hatteras Abyssal Plain of the Northwest Atlantic Ocean is described. This sediment consists of approx. 20% CaCO/sub 3/, which could lead to the formation of calcareous scale on the metal surface and reduce the corrosion rate. The distribution of indigenous metals among different chemical fractions shows that extractable Cr, Mn, Fe, Co, and Zn were associated with amorphous Mn and Fe oxides. Most of the remaining extractable Cr, and about a third of the extractable Cu appear to have been weakly complexed. Major fractions (25 to 36%) of extractable Mn, Co and Ni were present as adsorbed cations. Organic complexation appears to account for a large amount of extractable Fe, Ni, Cu and Zn. Neutron-activated 347 stainless steel specimens were exposed to sediment slurry under aerobic and non-oxygenated conditions for a period of 94 days. The redox potential measurements for air-sparged and N/sub 2/, CO/sub 2/-sparged sediment slurries were +410 and +60 mv, respectively. The presence of 0/sub 2/ produced increased amounts of corrosion products. Chemical extraction showed that relatively labile substances constituted about 84% of the /sup 60/Co activity released in …
Date:
July 1, 1982
Creator:
Schmidt, R. L.
Object Type:
Report
System:
The UNT Digital Library
Fermi-Teller theory of low-velocity ionization losses applied to monopoles
The Fermi-Teller theory was originally used to predict the stopping, by ionization losses, of slow charged particles in materials. The theory is based on a calculation of the energy cost to a uniform Fermi sea. However, the Fermi velocity cancels out in the derivation, so the calculated results also apply to a Thomas-Fermi atom, in which each volume element is considered to be a Fermi sea filled to the top of the potential well with atomic electrons. An outline is presented of the modifications required to make the Fermi-Teller theory valid for a slow monopole traversing an insulator using the Thomas-Fermi model of the atom. (GHT)
Date:
July 1982
Creator:
Ritson, D. M.
Object Type:
Article
System:
The UNT Digital Library
Filter characterization. [ANLYZ computer code]
Some insight into the characteristic response of filters versus frequency and loading is presented. A computer program is provided which will allow the user to vary the filter model in order to assess the effect of specific conditions.
Date:
July 1, 1982
Creator:
Stanton, C.P.
Object Type:
Report
System:
The UNT Digital Library
Financing alternatives and incentives for solar-thermal central-receiver systems
As a result of various recently enacted incentive and regulatory legislation combined with the new administration policy and budgetary guidelines, the commercialization of solar thermal central receiver systems will involve financing alternatives other than conventional utility financing. This study was conducted to identify these potential financing alternatives and the associated requirements and impacts on the Department of Energy program. Based upon this analysis, it is concluded that the current alternative financing window is extremely short (through 1985), and that an extension or at the least a gradual phasing out, of the solar tax credits is necessary for the successful transfer of the central receiver technology to the private sector. Furthermore, throughout this time period, continued government support of the R and D activities is necessary to provide the necessary confidence in this technology for the private (financial) sector to underwrite this technology transfer. Consequently, even though the central receiver technology shows high promise for replacing a significant fraction of the oil/gas-fired utility industry peaking and intermediate generation, the current readiness status of this technology still requires further direct and indirect government support for a successful technology transfer. The direct government research and development support will provide the basis for a …
Date:
July 1, 1982
Creator:
Bos, P.B.
Object Type:
Report
System:
The UNT Digital Library
Fireset Materials Aging Study
A thermally-accelerated aging study of 10 selected organic materials used in a fireset has been conducted. The study included both quantitative and qualitative gas analyses as well as the measurement of physical properties before and after accelerated aging. The test plan involved single material aging, as well as pairs and larger groups to look for synergistic interactions. The material types tested were epoxies, polyurethanes, polysulfides, silicones, phenolics, polyolefins, and diallyl phthalates. Only two of the materials tested showed evidence of degradation as a result of aging.
Date:
July 1, 1982
Creator:
Smith, H. M.; Arnold, C. & Bailey, M. E.
Object Type:
Report
System:
The UNT Digital Library
Flight-Systems Safety Program, April 1982. Progress report
This technical monthly report covers studies related to the use of /sup 238/PuO/sub 2/ in radioisotope power systems carried out for the Office of Coordination and Special Projects of the US Department of Energy by Los Alamos National Laboratory. Most of the studies discussed here are ongoing. Results and conclusions described may change as the work continues. Published reference of the results cited in this report should not be made without the explicit permission of the person in charge of the work.
Date:
July 1, 1982
Creator:
Bronisz, S. E.
Object Type:
Report
System:
The UNT Digital Library
Flight-systems safety program. Progress report, July 1982
This technical monthly report covers studies related to the use of /sup 238/PuO/sub 2/ in radioisotope power systems carried out for the Office of Space Nuclear Projects of the US Department of Energy by Los Alamos National Laboratory. Most of the studies discussed are ongoing. Results and conclusions described may change as the work continues.
Date:
July 1, 1982
Creator:
Bronisz, S. E.
Object Type:
Report
System:
The UNT Digital Library
Flight-systems safety program. Progress report, March 1982
This technical monthly report covers studies related to the use of /sup 238/PuO/sub 2/ in radioisotope power systems carried out for the Office of Coordination and Special Projects of the US Department of Energy by Los Alamos National Laboratory. Most of the studies discussed here are ongoing. Results and conclusions described may change as the work continues. Published reference of the results cited in this report should not be made without the explicit permission of the person in charge of the work.
Date:
July 1, 1982
Creator:
Bronisz, S. E.
Object Type:
Report
System:
The UNT Digital Library
Fluid sampling and chemical modeling of geopressured brines containing methane. Final report, March 1980-February 1981
The development of a flowthrough sampler capable of obtaining fluid samples from geopressured wells at temperatures up to 400/sup 0/F and pressures up to 20,000 psi is described. The sampler has been designed, fabricated from MP35N alloy, laboratory tested, and used to obtain fluid samples from a geothermal well at The Geysers, California. However, it has not yet been used in a geopressured well. The design features, test results, and operation of this device are described. Alternative sampler designs are also discussed. Another activity was to review the chemistry and geochemistry of geopressured brines and reservoirs, and to evaluate the utility of available computer codes for modeling the chemistry of geopressured brines. The thermodynamic data bases for such codes are usually the limiting factor in their application to geopressured systems, but it was concluded that existing codes can be updated with reasonable effort and can usefully explain and predict the chemical characteristics of geopressured systems, given suitable input data.
Date:
July 1, 1982
Creator:
Dudak, B.; Galbraith, R.; Hansen, L.; Sverjensky, D. & Weres, O.
Object Type:
Report
System:
The UNT Digital Library
Forecast of geothermal-drilling activity
The number of geothermal wells that will be drilled to support electric power production in the United States through 2000 A.D. are forecasted. Results of the forecast are presented by 5-year periods for the five most significant geothermal resources.
Date:
July 1, 1982
Creator:
Mansure, A. J. & Brown, G. L.
Object Type:
Report
System:
The UNT Digital Library
Formation and characterization of fission-product aerosols under postulated HTGR accident conditions
The paper presents the results of an experimental investigation on the formation mechanism and physical characterization of simulated nuclear aerosols that could likely be released during an HTGR core heat-up accident. Experiments were carried out in a high-temperature flow system consisting essentially of an inductively heated release source, a vapor deposition tube, and a filter assembly for collecting particulate matter. Simulated fission products Sr and Ba as oxides are separately impregnated in H451 graphite wafers and released at elevated temperatures into a dry helium flow. In the presence of graphite, the oxides are quantitatively reduced to metals, which subsequently vaporize at temperatures much lower than required for the oxides alone to vaporize in the absence of graphite. A substantial fraction of the released material is associated with particulate matter, which is collected on filters located downstream at ambient temperature. The release and transport of simulated fission product Ag as metal are also investigated.
Date:
July 1, 1982
Creator:
Tang, I.N. & Munkelwitz, H.R.
Object Type:
Article
System:
The UNT Digital Library
Genetics of x-ray induced double strand break repair in saccharomyces cerevisiae
The possible fates of x-ray-induced double-strand breaks in Saccharomyces cerevisiae were examined. One possible pathway which breaks can follow, the repair pathway, was studied by assaying strains with mutations in the RAD51, RAD54, and RAD57 loci for double-strand break repair. In order of increasing radiation sensitivity one finds: rad57-1(23/sup 0/)> rad51-1(30/sup 0/)> rad54-3(36/sup 0/). At 36/sup 0/, rad54-3 cells cannot repair double-strand breaks, while 23/sup 0/, they can. Strains with the rad57-1 mutation can rejoin broken chromosomes at both temperatures. However, the low survival at 36/sup 0/ shows that the assay is not distinguishing large DNA fragments which allow cell survival from those which cause cell death. A rad51-1 strain could also rejoin broken chromosomes, and was thus capable of incomplete repair. The data can be explained with the hypothesis that rad54-3 cells are blocked in an early step of repair, while rad51-1 and rad57-1 strains are blocked in a later step of repair. The fate of double-strand breaks when they are left unrepaired was investigated with the rad54-3 mutation. If breaks are prevented from entering the RAD54 repair pathway they become uncommitted lesions. These lesions are repaired slower than the original breaks. One possible fate for an uncommitted lesion …
Date:
July 1, 1982
Creator:
Budd, Martin Ellsworth
Object Type:
Report
System:
The UNT Digital Library
Geothermal completion technology life cycle cost model (GEOCOM). Volume I. Final report. Volume II. User instruction manual
Just as with petroleum wells, drilling and completing a geothermal well at minimum original cost may not be the most cost-effective way to exploit the resource. The impacts of the original completion activities on production and costs later in the life of the well must also be considered. In order to evaluate alternate completion and workover technologies, a simple computer model has been developed to compare total life-cycle costs for a geothermal well to total production or injection. Volume I discusses the mechanics of the model and then presents detailed results from its application to different completion and workover questions. Volume II is the user instruction manual.
Date:
July 1, 1982
Creator:
Anderson, E. R.; Hoessel, W. C.; Mansure, A. J. & McKissen, P.
Object Type:
Report
System:
The UNT Digital Library
Geothermal development issues: Recommendations to Deschutes County
This report discusses processes and issues related to geothermal development. It is intended to inform planners and interested individuals in Deschutes County about geothermal energy, and advise County officials as to steps that can be taken in anticipation of resource development. (ACR)
Date:
July 1, 1982
Creator:
Gebhard, C.
Object Type:
Report
System:
The UNT Digital Library
Geothermal direct heat program roundup technical conference proceedings
Separate abstracts were prepared for the seventeen papers in this proceedings.
Date:
July 1, 1982
Creator:
Ruscetta, C.A. (ed.)
Object Type:
Article
System:
The UNT Digital Library
Geothermal direct heat program: roundup technical conference proceedings. Volume II. Bibliography of publications. State-coupled geothermal resource assessment program
Lists of publications are presented for the Geothermal Resource Assessment Program for the Utah Earth Science Laboratory and the following states: Alaska, Arizona, California, Colorado, Hawaii, Idaho, Kansas, Montana, Nebraska, Nevada, New Mexico, New York, North Dakota, Oregon, Texas, Utah, and Washington.
Date:
July 1, 1982
Creator:
Ruscetta, C. A.
Object Type:
Report
System:
The UNT Digital Library
Geothermal energy: a brief assessment
This document includes discussions about geothermal energy, its applications, and how it is found and developed. It identifies known geothermal resources located in Western's power marketing area, and covers the use of geothermal energy for both electric power generation and direct applications. Economic, institutional, environmental, and other factors are discussed, and the benefits of the geothermal energy resource are described.
Date:
July 1, 1982
Creator:
Lunis, B.C.; Blackett, R. & Foley, D. (eds.)
Object Type:
Report
System:
The UNT Digital Library
Geothermal reconnaissance of a portion of the Escalante Valley, Utah
The exploration techniques employed during the study included: (1) Temperature survey of selected wells and springs; (2) Chemical analysis of fluids from selected wells and springs; and (3) Temperature-depth measurements of selected holes of opportunity.
Date:
July 1, 1982
Creator:
Klauk, R. H.; Foreman, M. B. & Gourley, C.
Object Type:
Article
System:
The UNT Digital Library
Geothermal-well completions: a survey and technical evaluation of existing equipment and needs
The geothermal environment and associated well completion problems are reviewed. Existing well completion equipment is surveyed and limitations are identified. A technical evaluation of selected completion equipment is presented. The technical evaluation concentrates on well cementing equipment and identifies potential failure mechanisms which limit the effectiveness of these tools. Equipment employed in sand control, perforating, and corrosion control are identified as potential subjects for future technical evaluation.
Date:
July 1, 1982
Creator:
Nicholson, J. E. & Snyder, R. E.
Object Type:
Report
System:
The UNT Digital Library
Ground Water Resources of Colorado, Lavaca, and Wharton Counties, Texas
Report detailing fresh ground water sources for Colorado, Lavaca, and Wharton Counties and related developments.
Date:
July 1982
Creator:
Loskot, Carole L.; Sandeen, William M. & Follett, C. R.
Object Type:
Report
System:
The Portal to Texas History