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3,458 Matching Results
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Aerial Gamma Ray and Magnetic Survey: Marion Quadrangle, Ohio
Final report analyzing aerial gamma ray and magnetic data in the Marion quadrangle, Ohio, including a detailed geologic summary, interpretation report, reduced scale copies of all maps and profiles, histograms, and statistical tables for the quadrangle.
Date:
June 1981
Creator:
EG & G GeoMetrics
Object Type:
Report
System:
The UNT Digital Library
Aerial Gamma Ray and Magnetic Survey: Toledo Quadrangle, Ohio and Michigan
Final report analyzing aerial gamma ray and magnetic data in the Toledo quadrangle, Ohio and Michigan, including a detailed geologic summary, interpretation report, reduced scale copies of all maps and profiles, histograms, and statistical tables for the quadrangle.
Date:
June 1981
Creator:
EG & G GeoMetrics
Object Type:
Report
System:
The UNT Digital Library
Aerial Radiological Survey of Area 11, Nevada Test Site
An aerial radiological survey of Area 11's Plutonium Valley was conducted at the Nevada Test Site from 18 to 30 January 1982. Contour maps representing terrestrial exposure rates and soil concentrations of transuranics, /sup 235/U and /sup 137/Cs are presented on an aerial photograph. Inventories of the locale's transuranic and uranium activities are also included.
Date:
June 1, 1983
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
African Famine: U.S. Response
This report discusses the 1985 African famine situation, especially regarding U.S. emergency assistance at a time of U.S. domestic budgetary restraints, the adequacy of U.S. measures for monitoring and anticipating food emergencies, and the scale and nature of U.S. agricultural development programs intended to prevent future famines.
Date:
June 27, 1985
Creator:
Hanrahan, Charles E.; Copson, Raymond W.; Epstein, Susan B.; Kenworthy, Holly & Nowels, Larry
Object Type:
Report
System:
The UNT Digital Library
An agenda for american federalism: restoring confidence and competence
The ACIR Library is composed of publications that study the interactions between different levels of government. This document addresses the federal role in the federal system and the dynamics of growth.
Date:
June 1981
Creator:
United States. Advisory Commission on Intergovernmental Relations.
Object Type:
Book
System:
The UNT Digital Library
Agent Orange: Veterans' Complaints Concerning Exposure to Herbicides in South Vietnam
From 1962 to 1971, the United States Air Force (USAF) sprayed various herbicide mixtures (chemicals that kill plants) in South Vietnam. The purpose of the spraying was to defoliate jungle growth to deprive the Communist forces of ground cover, and to destroy enemy crops to restrict food supplies. The most extensively used of these herbicide mixtures was known as Agent Orange, a 50:50 mix of two common herbicides called 1,4,5-T and 2,4-D (2,4,5-trichlorophenoxyacetic acid and 2,4-dichlorophenoxyacetic acid). The third chemical present in the mixture in small amounts was TCDD, an inevitable by-product of the manufacture of 2,4,5-T. This chemical, called tetrachlorodibenzo-para-dioxin or simply "dioxin," is highly toxic to laboratory animals when administered in its pure form. CRS has been unable to locate any report of a human death from exposure to pure TCDD. This report discusses the human health effects that have occurred from exposure to TCDD, as well as related Congressional concerns.
Date:
June 25, 1982
Creator:
Smith, Pamela W.
Object Type:
Report
System:
The UNT Digital Library
Aging degradation of cast stainless steels: Effects on mechanical properties
A program is being conducted to investigate the significance of in-service embrittlement of cast duplex stainless steels under light-water operating conditions. Mechanical property data are presented from Charpy-impact, tensile, and J-R curve tests for several heats of cast stainless steel aged up to 10,000 h at 450, 400, 350, 320, and 290/sup 0/C. The results indicate that thermal aging increases the tensile strength and decreases the impact energy, J/sub IC/, and tearing modulus of the steels. Also, the ductile-to-brittle transition curve shifts to higher temperatures. The fracture toughness results are consistent with the Charpy-impact data, i.e., the relative reduction in J/sub IC/ is similar to the relative decrease in impact energy. The ferrite content and concentration of C in the steel have a strong effect on the overall process of low-temperature embrittlement. The low-carbon CF-3 steels are the most resistant and Mo-containing CF-8M steels are most susceptible to embrittlement. Weakening of the ferrite/austenite phase boundaries by carbide precipitates has a significant effect on the kinetics and extent of embrittlement of the high-carbon CF-8 and CF-8M steels, particularly after aging at temperatures greater than or equal to400/sup 0/C. The influence of N content and distribution of ferrite on loss of toughness …
Date:
June 1, 1987
Creator:
Chopra, O. K. & Chung, H. M.
Object Type:
Article
System:
The UNT Digital Library
Aging of Electric Motors in Nuclear Power Plants
Motor degradation due to aging and service wear decreases reliability and increases the potential for failure during nuclear plant accident and post accident conditions. The impact of motor failures on plant safety is an important concern among the nuclear utilities and the government agency regulating this industry. Economic impacts, relating to plant availability and safety, as well as corrective maintenance, have prompted utilities to improve their maintenance programs to mitigate such aging effects. 2 refs., 3 figs.
Date:
June 1, 1987
Creator:
Subudhi, Mano & Taylor, John H.
Object Type:
Article
System:
The UNT Digital Library
The Agricultural recession : its impact on the finances of state and local governments : short-term reconnaissance study
The ACIR Library is composed of publications that study the interactions between different levels of government. This document addresses the agricultural recession and its impact on the finances of state local governments.
Date:
June 1986
Creator:
United States. Advisory Commission on Intergovernmental Relations.
Object Type:
Book
System:
The UNT Digital Library
Aid to developing countries: the technology/ecology fit
This report focuses primarily on AID and to a lesser extent on the World Bank. AID and the World Bank have made the most observable efforts to integrate environmental and development concerns.
Date:
June 1987
Creator:
United States. Congress. Office of Technology Assessment.
Object Type:
Report
System:
The UNT Digital Library
Airborne and field-temperature surveys compared at Long Valley KGRA, California
An airborne predawn radiometric temperature survey was flown over the Long Valley KGRA. Radiometric temperatures were recorded at 10 to 12 ..mu..m and 4.5 to 5.5 ..mu..m. They were corrected to obtain true land-surface temperatures in agreement with field data. After accounting for thermal effects from surface features, there remained a thermal anomaly. The anomalous zone encompassed 2 km/sup 2/. It was a dry land area with a predawn surface temperature which averaged 1.4 +- 0.3/sup 0/C warmer than ambient. This area coincided with a thermal discharge zone where deep temperature gradients were 5 to 30 times normal. The predawn radiometric survey clarified and supplemented conclusions drawn from 6 to 30m deep field surveys. Heat from hydrothermal discharge was stored in a shallow aquifer and conducted to the surface.
Date:
June 1, 1981
Creator:
Del Grande, N.K.
Object Type:
Article
System:
The UNT Digital Library
Los Alamos Critical Assemblies Facility
The Critical Assemblies Facility of the Los Alamos National Laboratory has been in existence for thirty-five years. In that period, many thousands of measurements have been made on assemblies of /sup 235/U, /sup 233/U, and /sup 239/Pu in various configurations, including the nitrate, sulfate, fluoride, carbide, and oxide chemical compositions and the solid, liquid, and gaseous states. The present complex of eleven operating machines is described, and typical applications are presented.
Date:
June 1, 1981
Creator:
Malenfant, R.E.
Object Type:
Report
System:
The UNT Digital Library
Los Alamos low-level waste performance assessment status
This report reviews the documented Los Alamos studies done to assess the containment of buried hazardous wastes. Five sections logically present the environmental studies, operational source terms, transport pathways, environmental dosimetry, and computer model development and use. This review gives a general picture of the Los Alamos solid waste disposal and liquid effluent sites and is intended for technical readers with waste management and environmental science backgrounds but without a detailed familiarization with Los Alamos. The review begins with a wide perspective on environmental studies at Los Alamos. Hydrology, geology, and meteorology are described for the site and region. The ongoing Laboratory-wide environmental surveillance and waste management environmental studies are presented. The next section describes the waste disposal sites and summarizes the current source terms for these sites. Hazardous chemical wastes and liquid effluents are also addressed by describing the sites and canyons that are impacted. The review then focuses on the transport pathways addressed mainly in reports by Healy and Formerly Utilized Sites Remedial Action Program. Once the source terms and potential transport pathways are described, the dose assessment methods are addressed. Three major studies, the waste alternatives, Hansen and Rogers, and the Pantex Environmental Impact Statement, contributed to …
Date:
June 1, 1986
Creator:
Wenzel, W.J.; Purtymun, W.D.; Dewart, J.M. & Rodgers, J.E. (comps.)
Object Type:
Report
System:
The UNT Digital Library
Los Alamos personnel and area criticality dosimeter systems
Fissionable materials are handled and processed at the Los Alamos National Laboratory. Although the probability of a nuclear criticality accident is very remote, it must be considered. Los Alamos maintains a broad spectrum of dose assessment capabilities. This report describes the methods employed for personnel neutron, area neutron, and photon dose evaluations with passive dosimetry systems.
Date:
June 1, 1981
Creator:
Vasilik, D. G. & Martin, R. W.
Object Type:
Report
System:
The UNT Digital Library
Los Alamos Transuranic Waste Size Reduction Facility
The Los Alamos Transuranic (TRU) Waste Size Reduction Facility (SRF) is a production oriented prototype. The facility is operated to remotely cut and repackage TRU contaminated metallic wastes (e.g., glove boxes, ducting and pipes) for eventual disposal at the Waste Isolation Pilot Plant (WIPP) near Carlsbad, New Mexico. The resulting flat sections are packaged into a tested Department of Transportation Type 7A metal container. To date, the facility has successfully processed stainless steel glove boxes (with and without lead shielding construction) and retention tanks. We have found that used glove boxes generate more cutting fumes than do unused glove boxes or metal plates - possibly due to deeply embedded chemical residues from years of service. Water used as a secondary fluid with the plasma arc cutting system significantly reduces visible fume generation during the cutting of used glove boxes and lead-lined glove boxes. 2 figs., 1 tab.
Date:
June 1, 1987
Creator:
Harper, J. & Warren, J.
Object Type:
Article
System:
The UNT Digital Library
Alaska: a guide to geothermal energy development
Alaska's geothermal potential, exploration, drilling, utilization, and legal and institutional setting are covered. Economic factors of direct use projects are discussed. (MHR)
Date:
June 1, 1980
Creator:
Basescu, N.; Bloomquist, R.G.; Higbee, C.; Justus, D. & Simpson, S.
Object Type:
Report
System:
The UNT Digital Library
Alaska: a guide to geothermal energy development
A brief overview is given of the geological characteristics of each region of the state as they relate to potential geothermal development. Those exploration methods which can lead to the siting of a deep exploration well are described. Requirements and techniques needed for drilling deeper higher temperature exploration and production wells are presented. Electrical generation, direct utilization, and indirect utilization are reviewed. Economic factors of direct use projects are presented. A general guide to the regulatory framework affecting geothermal energy development is provided. The general steps necessary to gain access to explore, develop, distribute, and use geothermal resources are outlined. (MHR)
Date:
June 1, 1980
Creator:
Basescu, N.; Bloomquist, R.G.; Higbee, C.; Justus, D. & Simpson, S.
Object Type:
Report
System:
The UNT Digital Library
Alaska Open-File Report 127 Assessment of Thermal Springs Sites in Southern Southeastern Alaska - Preliminary Results and Evaluation
Information has been gathered on 13 reported thermal-spring sites, 12 in southern Southeastern Alaska and one in western British Columbia. Five of the reported sites could not be substantiated by DGGS. The eight known thermal spring sites are associated with grainitic terrain and, except for Baker Island Hot Springs, occur within or near intensively fractured Cretaceous-age pluons of the Coast Range Batholith. Thermal-spring surface temperatures range from 21 C (Twin Lakes) to 91.5 C (Bailey Bay). The greatest discharge occurs at Chief Shakes hot springs (450 1pm). Bell Island Hot Springs, which has about a 100-1 pm discharge and a 70 C temperature, has had the most development. Two previously unreported thermal-spring sites, Barnes Lake warm springs and Bradfield hot springs, have a low rate of discharge and respective surface temperatures of about 25 and 54 C. The known thermal springs probably originate from circulation of meteoric waters through deep-seated fracture and fault systems. The chemical constituents of the alkali-sulfate to alkali-chloride thermal waters are probably derived from interaction of the deeply circulating meteoric waters with the granitic wall rocks. Chemical geothermometry suggests subsurface temperatures of 55 to 151 C. If waters are being heated solely by conduction from wall …
Date:
June 1, 1980
Creator:
Motyka, Roman J.; Moorman, Mary A. & Reeder, John W.
Object Type:
Report
System:
The UNT Digital Library
Alcohol as a fuel for farm and construction equipment
Work in three areas dealing with the utilization of ethanol as fuel for farm and construction diesels is summarized. The first part is a review of what is known about the retrofitting of diesels for use of ethanol and the combustion problems involved. The second part is a discussion of the work that has been done under the contract on the performance of a single-cylinder, open-chamber diesel using solutions and emulsions of diesel fuel with ethanol. Data taken include performance, emissions and cylinder pressure-time for diesel fuel with zero to forty percent ethanol by volume. Analysis of the data includes calculation of heat release rates using a single zone model. The third part is a discussion of work done retrofitting a multicylinder turbocharged farm tractor diesel to use ethanol by fumigation. Three methods of ethanol introduction are discussed; spraying ethanol upstream and downstream of the compressor and prevaporization of the ethanol. Data on performance and emissions are given for the last two methods. A three zone heat release model is described and results from the model are given. A correlation of the ignition delay using prevaporized ethanol fumigation data is also given. Comparisons are made between fumigation in DI and …
Date:
June 1, 1982
Creator:
Borman, G L; Foster, D E; Meyers, P S & Uyehara, O A
Object Type:
Report
System:
The UNT Digital Library
Algae from the arid southwestern United States: an annotated bibliography
Desert algae are attractive biomass producers for capturing solar energy through photosynthesis of organic matter. They are probably capable of higher yields and efficiencies of light utilization than higher plants, and are already adapted to extremes of sunlight intensity, salinity and temperature such as are found in the desert. This report consists of an annotated bibliography of the literature on algae from the arid southwestern United States. It was prepared in anticipation of efforts to isolate desert algae and study their yields in the laboratory. These steps are necessary prior to setting up outdoor algal culture ponds. Desert areas are attractive for such applications because land, sunlight, and, to some extent, water resources are abundant there. References are sorted by state.
Date:
June 1, 1983
Creator:
Thomas, W. H. & Gaines, S. R.
Object Type:
Report
System:
The UNT Digital Library
Aliphatic components of coal. Quarterly report, March-June 1980
Liquefaction of coal involves thermolysis of benzyl-oxygen and/or benzyl-benzyl bonds as the first step in the depolymerization. This view derives from NMR studies, studies with model compounds, and oxidative degradations with Na/sub 2/Cr/sub 2/O/sub 7/ and CF/sub 3/CO/sub 3/H/sub 2/. The best method for determining the amount of arylmethyl groups in coals is from the yield of acetic acid formed in oxidative degradation with CF/sub 3/CO/sub 3/H-H/sub 2/SO/sub 4/. The following observations and interpretations are made: a sharp increase in arylmethyl accompanies liquefaction in all five coals and in two coals studied earlier. This increase is the result of thermal cleavage to benzyl radicals and abstraction of hydrogen atoms by the benzyl radicals to form arylmethyl. All five coals give about the same percentage increase in arylmethyl after 90 mins of solvent refining, but not after 3 mins. This indicates that benzyl radicals form from more than one type of structure. Based on studies of model compounds, it is attractive to ascribe arylmethyl formation in 3 mins to cleavage of benzyl ethers and slower cleavage to bibenzyl structures. It might have been expected that the more arylmethyl, the more cleavage, and the more SRC. In fact the opposite is found. …
Date:
June 1, 1980
Creator:
Deno, N. C.; Cannon, C.; Curry, K.; Jones, A. D.; Potter, T. C.; Rakitsky, W. G. et al.
Object Type:
Report
System:
The UNT Digital Library
The all particle method: Coupled neutron, photon, electron, charged particle Monte Carlo calculations
At the present time a Monte Carlo transport computer code is being designed and implemented at Lawrence Livermore National Laboratory to include the transport of: neutrons, photons, electrons and light charged particles as well as the coupling between all species of particles, e.g., photon induced electron emission. Since this code is being designed to handle all particles this approach is called the ''All Particle Method''. The code is designed as a test bed code to include as many different methods as possible (e.g., electron single or multiple scattering) and will be data driven to minimize the number of methods and models ''hard wired'' into the code. This approach will allow changes in the Livermore nuclear and atomic data bases, used to described the interaction and production of particles, to be used to directly control the execution of the program. In addition this approach will allow the code to be used at various levels of complexity to balance computer running time against the accuracy requirements of specific applications. This paper describes the current design philosophy and status of the code. Since the treatment of neutrons and photons used by the All Particle Method code is more or less conventional, emphasis in …
Date:
June 1, 1988
Creator:
Cullen, D.E.; Perkins, S.T.; Plechaty, E.F. & Rathkopf, J.A.
Object Type:
Article
System:
The UNT Digital Library
Allocatin of functions in man-machine systems: a perspective and literature review
This report reviews the literature relevant to allocation of functions and presents a procedure for the allocation process applicable to nuclear power plant control rooms. An historical perspective of man's relationship with technology is given as background. Methods and models that have been developed to aid the allocation process are then considered, followed by examples of real-world applications. The relationship of allocation of function to the system development process is outlined. The report then turns to the proposed procedure of the allocation process.
Date:
June 1, 1982
Creator:
Price, H. E.; Maisano, R. E. & Van Cott, H. P.
Object Type:
Report
System:
The UNT Digital Library
Alloy development for irradiation performance. Quarterly progress report for period ending March 31, 1980
This report is organized along topical lines in parallel to a Program Plan of the same title so that activities and accomplishments may be followed readily relative to that Program Plan. Thus, the work of a given laboratory may appear throughout the report. Chapters 1, 2, 8, and 9 review activities on analysis and evaluation, test methods development, status of irradiation experiments, and corrosion testing and hydrogen permeation studies, respectively. These activities relate to each of the alloy development paths. Chapters 3, 4, 5, 6, and 7 present the ongoing work on each alloy development path. The Table of Contents is annotated for the convenience of the reader.
Date:
June 1, 1980
Creator:
Ashdown, B.G. (comp.)
Object Type:
Report
System:
The UNT Digital Library