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Office of Scientific & Technical Information Technical Reports
2,159
Texas State Publications
320
Technical Report Archive and Image Library
263
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139
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84
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53
Office of Technology Assessment
46
Advisory Commission on Intergovernmental Relations
9
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8
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151
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143
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40
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Savannah River Laboratory Hydrogeochemical and Stream Sediment Reconnaissance
34
Texas Motor Vehicle Traffic Accident Summaries
33
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29
NURE Aerial Gamma Ray and Magnetic Reconnaissance Survey of Maine and Portions of New York
23
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3,088 Matching Results
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Rapid vibrational and rotational energy-transfer rates in heated carbon dioxide collisions by double-resonance laser spectroscopy
Rates for resonant vibrational and rotational energy transfer from the 001 state by CO/sub 2/ + CO/sub 2/ collisions have been measured. All data were obtained by double resonance spectroscopy with CO/sub 2/ lasers in a 2.5 meter absorption cell at 700/sup 0/K. Results for rotation transfer include pumped-level relaxation and the response of other 001 levels with ..delta..J up to 18. These data are compared to four relevant collision models via a 35-level rate equation analysis. Sequence-band (002 ..-->.. 101) and hot-band (011 ..-->.. 110) lasting have been used to observe resonant nu/sub 3/-transfer relaxation involving 001 + 001 reversible 002 + 000, 001 + 100 reversible 101 + 000, and 001 + 010 reversible 011 + 000. A multilevel rate analysis has been utilized to determine the rate coefficients for 001 going to the 002, the 101, and the 011 levels. Part of the hot-band data has been interpreted as due to 110 + 000 reversible 100 + 010, and the associated rate constant has been estimated. The results of the study are compared to the theory and to other experiments.
Date:
July 1, 1982
Creator:
Thomason, M.D.
Object Type:
Report
System:
The UNT Digital Library
Review of water resource potential for developing geothermal resource sites in the western United States
Water resources at 28 known geothermal resource areas (KGRAs) in the western United States are reviewed. Primary emphasis is placed upon examination of the waer resources, both surface and ground, that exist in the vicinity of the KGRAs located in the southwestern states of California, Arizona, Utah, Nevada, and New Mexico. In most of these regions water has been in short supply for many years and consequently a discussion of competing demands is included to provide an appropriate perspective on overall usage. A discussion of the water resources in the vicinity of KGRAs in the States of Montana, Idaho, Oregon, and Washington are also included.
Date:
July 1, 1980
Creator:
Sonnichsen, J.C. Jr.
Object Type:
Report
System:
The UNT Digital Library
Earth Sciences Division. Annual report 1979
This annual report contains articles describing the research programs conducted during the year. Major areas of interest include geothermal exploration technology, geothermal energy conversion technology, reservoir engineering, geothermal environmental research, basic geosciences studies, applied geosciences studies, nuclear waste isolation, and marine sciences. (ACR)
Date:
July 1, 1980
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Solar energy system economic evaluation: final report for SEMCO-Loxahatchee, Loxahatchee National Wildlife Refuge, Palm Beach County, Florida
The economic analysis of the solar energy system that was installed at Loxahatchee, Florida Operational Test Site (OTS) is developed for Loxahatchee and four other sites typical of a wide range of environmental and economic conditions in the continental United States. This analysis is accomplished based on the technical and economic models in the f-Chart design procedure with inputs based on the characteristics of the installed system and local conditions. The results are expressed in terms of the economic parameters of present worth of system costs over a projected twenty year life, life cycle savings, year of positive savings and year of payback for the optimized solar energy system at each of the analysis sites. The sensitivity of the economic evaluation to uncertainties in constituent system and economic variables is also investigated. The results demonstrate that the solar energy system is economically viable at all of the five sites for which the analysis was conducted.
Date:
July 1, 1980
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Introduction to nuclear test engineering
The basic information in this report is from a vu-graph presentation prepared to acquaint new or prospective employees with the Nuclear Test Engineering Division (NTED). Additional information has been added here to enhance a reader's understanding when reviewing the material after hearing the presentation, or in lieu of attending a presentation.
Date:
July 15, 1982
Creator:
O'Neal, W.C. & Paquette, D.L.
Object Type:
Report
System:
The UNT Digital Library
Theory of drift, trapped-particle, and Alfven instabilities and anomalous plasma transport
Separate abstracts were prepared for each of the two included sections. (MOW)
Date:
July 1, 1980
Creator:
Chen, L.; Chance, M. S. & Cheng, C. Z.
Object Type:
Report
System:
The UNT Digital Library
Technical evaluation of the proposed design modifications and technical specification changes on grid voltage degradation for the H. B. Robinson Nuclear Generating Plant, Unit 2
This report documents the technical evaluation of the proposed design modifications and technical specification changes on grid voltage degradation for the H. B. Robinson Nuclear Generating Plant Unit 2. The review criteria are based on IEEE Std. 279-1971, IEEE Std. 308-1974, and General Design Criterion 17 of the Code of Federal Regulations, Title 10, Part 50, Appendix A requirements for determining the acceptability of the proposed system to protect the Class 1E equipment from degradation of grid voltages.
Date:
July 1, 1980
Creator:
Selan, J.C.
Object Type:
Report
System:
The UNT Digital Library
Calculation of particulate dispersion in a design-basis tornadic storm from the Atomics International Nuclear Material Development Facility, Santa Susana, California
A three-dimensional numerical model is used to calculate ground-level air concentration and deposition (due to precipitation scavenging) after a hypothetical tornado strike at the Atomics International Nuclear Material Development Facility at Santa Susana, California. Plutonium particles less than 20 ..mu..m in diameter are assumed to be lifted into the tornadic storm cell by the vortex. The rotational characteristics of the tornadic storm are embedded within the larger mesoscale flow of the storm system. The design-basis translational wind values are based on probabilities associated with existing records of tornado strikes in the vicinity of the plant site. Turbulence exchange coefficients are based on empirical values deduced from experimental data in severe storms and from theoretical assumptions obtained from the literature. The method of moments is used to incorporate subgrid-scale resolution of the concentration within a grid cell volume. This method is a quasi-Lagrangian scheme which minimizes numerical error associated with advection. In all case studies, the effects of updrafts and downdrafts, coupled with scavenging of the particulates by precipitation, account for most of the material being deposited within 50 km downwind of the plant site. Ground-level isopleths in the x-y plane show that most of the material is deposited behind and …
Date:
July 1, 1980
Creator:
Pepper, D.W.
Object Type:
Report
System:
The UNT Digital Library
Sampling and analysis of trace-organic constituents in ambient and workplace air at coal-conversion facilities
A review of the recent literature reveals that current sampling procedures involve the use of glass fiber filters for particulate-sorbed organics and sorbent resins such as Tenax GC and XAD-2 for vapor-phase organics. Ultra trace-organic analysis of air pollutants or particulates may require the collection of a large (1000 to 3000 m/sup 3/) sample by a high volume air sampler. Personal air sampling requires a smaller (approx. = 0.5 m/sup 3/) and a portable collection apparatus. Trapped organic chemicals are recovered by solvent extraction or thermal desorption of the collector. Recovered organics are separated by using liquid chromatography or gas chromatography and are identified by ultraviolet or fluorescence spectroscopy, gas chromatography, or mass spectrometry. For quantification, standards are added to the air stream during sampling or to the filter or resin following sampling. Analysis of the requirement for air sampling in and around coal conversion plants, coupled with the findings of the literature review, indicates that a combined particulate-filter and solvent-extractable-resin sampling unit should be used to collect both particulate-sorbed organics and vapor-phase organics from workplace or ambient plant air. Such a sampler was developed for stationary, moderate-to-high-volume air sampling. Descriptions of the sampler are provided together with sampling efficiency …
Date:
July 1, 1980
Creator:
Flotard, R D
Object Type:
Report
System:
The UNT Digital Library
/sup 56/Ni and the light curve of Type I supernova
The explanation of SN Type I by radioactive decay of /sup 56/Ni requires a relatively small value of the transparency function M/sub ej//v/sub 9//sup 2/ = 0.22 in units of M/sub solar/'s and 10/sup 9/ cm s/sup -1/ to explain the light curve. A minimum mass of /sup 56/Ni is required to explain the peak and near peak luminosity. Subsequent radioactive decay energy must escape in some other form than optical light in order to explain the rapid early and late time decay. Early ultraviolet and infrared radiation are excluded as sinks of energy by observations. PdV work is excluded by theory. The energy loss due to the escape of gamma rays and ..beta../sup +/'s with the above value of M/sub ej//v/sub 9//sup 2/ gives good agreement with the light curve after maximum, provided essentially all the trapped energy is converted to optical light. The peak of SN 1972e is explained with the above transparency value M/sub ej//v/sub 9//sup 2/ = 0.22 and mass of /sup 56/Ni of 0.25 M/sub solar/ or 0.4 M/sub solar/, and a distance of 3.2 Mpc or 4 Mpc, respectively. These values depend critically upon the prediscovery report of Austin (1972), and the assumption again …
Date:
July 24, 1980
Creator:
Colgate, S.A. & Petschek, A.G.
Object Type:
Article
System:
The UNT Digital Library
Summary of the carbon dioxide effects research and assessment program
A brief management-oriented summary is presented of the research program. Goals, strategies, selected facts and predictions are presented. (ACR)
Date:
July 1, 1980
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Renewable Resources: a national catalog of model projects. Volume 4. Western Solar Utilization Network Region
This compilation of diverse conservation and renewable energy projects across the United States was prepared through the enthusiastic participation of solar and alternate energy groups from every state and region. Compiled and edited by the Center for Renewable Resources, these projects reflect many levels of innovation and technical expertise. In many cases, a critique analysis is presented of how projects performed and of the institutional conditions associated with their success or failure. Some 2000 projects are included in this compilation; most have worked, some have not. Information about all is presented to aid learning from these experiences. The four volumes in this set are arranged in state sections by geographic region, coinciding with the four Regional Solar Energy Centers. The table of contents is organized by project category so that maximum cross-referencing may be obtained. This volume includes information on the Western Solar Utilization Network Region. (WHK)
Date:
July 1, 1980
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Managing for success: developing and exploiting international opportunities in geothermal energy
This study is designed to assist the Division of Geothermal Energy (DGE) in deciding what kind of strategy it wants and needs in order to make its international effort as cost-effective and appropriate as possible. The purpose of this study is to construct a logic base on which DGE can, in turn, establish its own strategy for international cooperation, and can begin to plan for necessary organization, procedural and policy reforms. This report will constitute a set of decision guidelines for DGE to consider in determining the nature of future strategy-related reforms. Each chapter asks, and then answers, the question on which it is centered as follows: (1) what are the deficiencies in DGE's current approach; (2) what should an international strategy for DGE ensure; (3) how can an international strategy for DGE be manifested; (4) which strategic model presents the best opportunity now; and (5) how can the recommended alternative be achieved.
Date:
July 1, 1981
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Studies of heavy ion reactions and transuranic nuclei. Progress report, August 1, 1979-July 31, 1980. [Univ. of Rochester, New York, 8/1/79-7/31/80]
The study of heavy-ion reaction mechanisms at the SuperHILAC and LAMPF is reported. Preprints of five articles and manuscripts of four recent conference papers are given, along with complete citations of publications and a list of personnel. Significant work was performed in the following areas: the bombarding energy dependence of the /sup 209/Bi + /sup 136/Xe reaction; the fragment yields for specific Z and A for projectile-like fragments produced in the reaction of 8.3-MeV/u /sup 56/Fe ions with targets of /sup 56/Fe, /sup 165/Ho, /sup 209/Bi, and /sup 238/U; and time distributions of fragments from delayed fission after muon capture for muonic /sup 235/U, /sup 238/U, /sup 237/Np, /sup 239/Pu, and /sup 242/Pu. (RWR)
Date:
July 1, 1980
Creator:
Huizenga, J. R.
Object Type:
Report
System:
The UNT Digital Library
Validation of KENO V. a. and two cross-section libraries for criticality calculations of low-enriched uranium systems
The SCALE code system, utilizing the Monte Carlo computer code KENO V.a, was employed to calculate 37 critical experiments. The critical assemblies had /sup 235/U enrichments of 5% or less and cover a variety of geometries and materials. Values of k/sub eff/ were calculated using two different results using either of the cross-section libraries. The 16-energy-group Hansen-Roach and the 27-energy-group ENDF/B-IV cross-section libraries, available in SCALE, were used in this validation study, and both give good results for the experiments considered. It is concluded that the code and cross sections are adequate for low-enriched uranium systems and that reliable criticality safety calculations can be made for such systems provided the limits of validated applicability are not exceeded.
Date:
July 1, 1985
Creator:
Easter, M.E.
Object Type:
Report
System:
The UNT Digital Library
Potential of pyroprocessing for partitioning purex wastes
The processes are extremely compact. The process reagents are highly resistant to radiation damage and, therefore, can be used to handle short-cooled, highly concentrated waste with negligible degradation. Most reagents can be recycled back through the process many times, thereby minimizing the generation of waste products, and also reducing the process cost. Fission-product wastes are discharged from the process as concentrated, solid wastes, typically in a metal matrix suitable for permanent disposal. Long cooling periods are not needed prior to conversion to a suitable waste form. The recovered actinides are obtained as metals and cen be easily stored or shipped. Pyrochemical processing of nuclear fuels should be considered as a second generation technology.
Date:
July 23, 1980
Creator:
Coops, M. S. & Sisson, D. H.
Object Type:
Article
System:
The UNT Digital Library
Linear accelerators of the future
Some of the requirements imposed on future linear accelerators to be used in electron-positron colliders are reviewed, as well as some approaches presently being examined for meeting those requirements. RF sources for use in these linacs are described, as well as wakefields, single bunches, and multiple-bunch trains. (LEW)
Date:
July 1, 1986
Creator:
Loew, G.A.
Object Type:
Article
System:
The UNT Digital Library
Lawrence Livermore National Laboratory laser-fusion program
The goals of the Laser-Fusion Program at Lawrence Livermore National Laboratory are to produce well-diagnosed, high-gain, laser-driven fusion explosions in the laboratory and to exploit this capability for both military applications and for civilian energy production. In the past year we have made significant progress both theoretically and experimentally in our understanding of the laser interaction with both directly coupled and radiation-driven implosion targets and their implosion dynamics. We have made significant developments in fabricating the target structures. Data from the target experiments are producing important near-term physics results. We have also continued to develop attractive reactor concepts which illustrate ICF's potential as an energy producer.
Date:
July 12, 1982
Creator:
Ahlstrom, H.G.
Object Type:
Article
System:
The UNT Digital Library
/sup 3/H(p,n)/sup 3/He differential cross sections below 5 MeV and the n-/sup 3/He cross sections. [2. 5 and 4. 0 MeV]
Complete angular distributions for the /sup 3/H(p,n)/sup 3/He reaction were measured at 2.5 and 4.0 MeV with the /sup 1/H(t,n)/sup 3/He reaction used to obtain the backward yields. Because the distributions are peaked about 17% more strongly in the backward direction than the best previous elevation suggests (based on extrapolated data), the /sup 3/H(p,n)/sup 3/He reaction cross sections below 5 MeV were re-evaluated without the extrapolated data. The results were compared with recent total n-/sup 3/He cross-section results. 3 figures, 4 tables.
Date:
July 1, 1980
Creator:
Drosg, M.
Object Type:
Report
System:
The UNT Digital Library
Photovoltaic module electrical termination design requirement study
Motorola Inc., in conjunction with ITT Cannon, has conducted a study to develop information to facilitate the selection of existing, commercial, electrical termination hardware for photovoltaic modules and arrays. This volume of the report contains the executive summary. Module and array design parameters were investigated and recommendations were developed for use in surveying, evaluating, and comparing electrical termination hardware. Electrical termination selection criteria factors were developed and applied to nine generic termination types in each of the four application sectors: remote, residential, intermediate and industrial. Existing terminations best suited for photovoltaic modules and arrays were identified. Cost information was developed to identify cost drivers and/or requirements which might lead to cost reductions. The general conclusion is that there is no single generic termination that is best suited for photovoltaic application, but that the appropriate termination is strongly dependent upon the module construction and its support structure as well as the specific application sector.
Date:
July 1, 1980
Creator:
Mosna, F.J. Jr. & Donlinger, J.
Object Type:
Report
System:
The UNT Digital Library
Search for narrow states produced in the reaction. pi. /sup -/p. -->. n +. gamma. 's at 13 GeV/c
A double arm lead-glass lead-scintillator calorimeter system was used to search for narrow states, such as the eta/sub c/, produced in the exclusive reactions ..pi../sup -/p ..-->.. ..gamma gamma..n, ..pi../sup -/p ..-->.. ..pi../sup 0/..gamma..n, and ..pi../sup -/p ..-->.. ..pi../sup 0/..pi../sup 0/n at 13 GeV/c. A 90% c.l. upper limit sigma.BR < 260 pb was found for ..gamma gamma.. states with masses from 2.6 to 3.1 GeV/c/sup 2/. Corresponding limits on narrow ..pi../sup 0/..gamma.. and ..pi../sup 0/..pi../sup 0/ states are also given.
Date:
July 7, 1980
Creator:
Chiang, I. H.; Johnson, R. A. & Kwan, B.
Object Type:
Article
System:
The UNT Digital Library
Internal R and D task summary report: analytical methods development
International Coal Refining Company (ICRC) conducted two research programs to develop analytical procedures for characterizing the feed, intermediates,and products of the proposed SRC-I Demonstration Plant. The major conclusion is that standard analytical methods must be defined and assigned statistical error limits of precision and reproducibility early in development. Comparing all SRC-I data or data from different processes is complex and expensive if common data correlation procedures are not followed. ICRC recommends that processes be audited analytically and statistical analyses generated as quickly as possible, in order to quantify process-dependent and -independent variables. 16 references, 10 figures, 20 tables.
Date:
July 1, 1983
Creator:
Schweighardt, F.K.
Object Type:
Report
System:
The UNT Digital Library
Bubble-chamber experiments on charmed-particle lifetimes
The three current bubble-chamber experiments on charmed-particle lifetimes are compared. Their most recently released results are discussed.
Date:
July 1, 1982
Creator:
Field, R.C.
Object Type:
Article
System:
The UNT Digital Library
Compact Toroid Theory Planning Workshop. A panel report to the Director, Division of Applied Plasma Physics, Office of Fusion Energy
The purpose of the Workshop was to identify the most important physics issues that need to be addressed in the near term in order to assure the optimal design and timely interpretation of Compact Toroid (CT) experiments. The Panel was also asked to assess the levels of effort required to obtain priority information on appropriate time scales compatible with DOE plans to design a CT proof-of-principle experiment. The fiscal year cost anticipated for the effort recommended by the Workshop Panel (excluding costs for computing) is estimated to be approximately $5.7M. CT theory is currently funded at a level of approximately $2.0M per year.
Date:
July 1, 1980
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library