Latest content added for UNT Digital Library Searchhttps://digital2.library.unt.edu/search/?t=fulltext&fq=str_month%3A08_aug&sort=default2018-02-04T10:51:49-06:00UNT LibrariesThis is a custom feed for searching UNT Digital Library SearchAdaptive Mesh Refinement for 1-Dimensional Gas Dynamics2018-01-22T07:23:21-06:00https://digital.library.unt.edu/ark:/67531/metadc1056591/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1056591/"><img alt="Adaptive Mesh Refinement for 1-Dimensional Gas Dynamics" title="Adaptive Mesh Refinement for 1-Dimensional Gas Dynamics" src="https://digital.library.unt.edu/ark:/67531/metadc1056591/thumbnail/"/></a></p><p>We consider the solution of the one-dimensional equation of gas-dynamics. Accurate numerical solutions are difficult to obtain on a given spatial mesh because of the existence of physical regions where components of the exact solution are either discontinuous or have large gradient changes. Numerical methods treat these phenomena in a variety of ways. In this paper, the method of adaptive mesh refinement is used. A thorough description of this method for general hyperbolic systems is given elsewhere and only properties of the method pertinent to the system are elaborated.</p>Design considerations for a steam-injection pilot with in-situ foaming2018-01-22T07:23:21-06:00https://digital.library.unt.edu/ark:/67531/metadc1056695/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1056695/"><img alt="Design considerations for a steam-injection pilot with in-situ foaming" title="Design considerations for a steam-injection pilot with in-situ foaming" src="https://digital.library.unt.edu/ark:/67531/metadc1056695/thumbnail/"/></a></p><p>This report reviews the necessary aspects of the planning, operation, evaluation, environmental impact and cost to implement a field pilot of steam injection with in-situ foaming. The Stanford University Petroleum Research Institute (SUPRI) is planning to implement such a pilot in Kern County, California. The cost of the pilot will be shared by the US Department of Energy and an oil company. Some important aspects of drilling and completion programs and their specifications, permits from regulatory bodies, and downhole tools to improve steam stimulation are discussed. The essential surface facilities which include water treatment plant, steam generator, demulsifier and dehydrator are considered. The necessary laboratory research in support of the pilot has been recommended. The formation evaluation and reservoir engineering effort for the pilot has been divided into three phases: reservoir definition, reservoir monitoring and post-pilot study. Appropriate techniques applicable to each phase of the test have been discussed. The environmental impact regulations as related to the steam injection process have been considered. In particular, the environmental problems associated with the burning of crude oil and desulfurization of flue gas have been discussed. Other environmental considerations such as solid and liquid waste disposal, health and safety are also discussed. An estimate of the cost of this field test is presented. Three scenarii (for pilots with high, medium, and low investment potentials, respectively) are presented. Since this report was prepared, a specific site for the supri pilot has been chosen. Appendices G and H present the details on this site.</p>Geochemical orientation survey of stream sediment, stream water, and ground water near uranium prospects, Monticello area, New York. National Uranium Resource Evaluation Program2018-01-22T07:23:21-06:00https://digital.library.unt.edu/ark:/67531/metadc1058817/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1058817/"><img alt="Geochemical orientation survey of stream sediment, stream water, and ground water near uranium prospects, Monticello area, New York. National Uranium Resource Evaluation Program" title="Geochemical orientation survey of stream sediment, stream water, and ground water near uranium prospects, Monticello area, New York. National Uranium Resource Evaluation Program" src="https://digital.library.unt.edu/ark:/67531/metadc1058817/thumbnail/"/></a></p><p>A detailed geochemical test survey has been conducted in a 570 sq km area around six small copper-uranium prospects in sandstones of the Devonian Catskill Formation near Monticello in southern New York state. This report summarizes and interprets the data for about 500 stream sediment samples, 500 stream water samples, and 500 ground water samples, each analyzed for 40 to 50 elements. The groundwater samples furnish distinctive anomalies for uranium, helium, radon, and copper near the mineralized localities, but the samples must be segregated into aquifers in order to obtain continuous well-defined anomalies. Two zones of uranium-rich water (1 to 16 parts per billion) can be recognized on cross sections; the upper zone extends through the known occurrences. The anomalies in uranium and helium are strongest in the deeper parts of the aquifers and are diluted in samples from shallow wells. In stream water, copper and uranium are slightly anomalous, as in an ore factor derived from factor analysis. Ratios of copper, uranium, and zinc to conductivity improve the resolution of anomalies. In stream sediment, extractable uranium, copper, niobium, vanadium, and an ore factor furnish weak anomalies, and ratios of uranium and copper to zinc improve the definition of anomalies. The uranium/thorium ratio is not helpful. Published analyses of rock samples from the nearby stratigraphic section show distinct anomalies in the zone containing the copper-uranium occurrences. This report is being issued without the normal detailed technical and copy editing, to make the data available to the public before the end of the National Uranium Reconnaissance Evaluation program.</p>Energy and technology review2018-01-22T07:23:21-06:00https://digital.library.unt.edu/ark:/67531/metadc1058662/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1058662/"><img alt="Energy and technology review" title="Energy and technology review" src="https://digital.library.unt.edu/ark:/67531/metadc1058662/thumbnail/"/></a></p><p>Three areas of research are discussed: microcomputer technology applied to inspecting machined parts to determine roundness in ultraprecision measurements; development of an electrolytic technique for preparing dinitrogen pentoxide as a potentially less expensive step in the large-scale synthesis of the explosive HMX; and the application of frequency conversion to short wavelengths in the Novette and Nova lasers to improve the performance of inertial-confinement fusion targets. (GHT)</p>Incentives and the siting of radioactive waste facilities2018-01-22T07:23:21-06:00https://digital.library.unt.edu/ark:/67531/metadc1058837/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1058837/"><img alt="Incentives and the siting of radioactive waste facilities" title="Incentives and the siting of radioactive waste facilities" src="https://digital.library.unt.edu/ark:/67531/metadc1058837/thumbnail/"/></a></p><p>The importance of social and institutional issues in the siting of nuclear waste facilities has been recognized in recent years. Limited evidence from a survey of rural Wisconsin residents in 1980 indicates that incentives may help achieve the twin goals of increasing local support and decreasing local opposition to hosting nuclear waste facilities. Incentives are classified according to functional categories (i.e., mitigation, compensation, and reward) and the conditions which may be prerequisites to the use of incentives are outlined (i.e., guarantee of public health and safety, some measure of local control, and a legitimation of negotiations during siting). Criteria for evaluating the utility of incentives in nuclear waste repository siting are developed. Incentive packages may be more useful than single incentives, and nonmonetary incentives, such as independent monitoring and access to credible information, may be as important in eliciting support as monetary incentives. Without careful attention to prerequisites in the siting process it is not likely that incentives will facilitate the siting process.</p>Accommodation project for physically restricted personnel. Phase II. Low back project2018-01-22T07:23:21-06:00https://digital.library.unt.edu/ark:/67531/metadc1057475/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1057475/"><img alt="Accommodation project for physically restricted personnel. Phase II. Low back project" title="Accommodation project for physically restricted personnel. Phase II. Low back project" src="https://digital.library.unt.edu/ark:/67531/metadc1057475/thumbnail/"/></a></p><p>This report presents a course outline and its associated criteria for a Back Pain Prevention Program for Sandia National Laboratories.</p>Geothermal Injection Monitoring Project. Phase I status report, April 1981-April 19822018-01-22T07:23:21-06:00https://digital.library.unt.edu/ark:/67531/metadc1057176/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1057176/"><img alt="Geothermal Injection Monitoring Project. Phase I status report, April 1981-April 1982" title="Geothermal Injection Monitoring Project. Phase I status report, April 1981-April 1982" src="https://digital.library.unt.edu/ark:/67531/metadc1057176/thumbnail/"/></a></p><p>The feasibility of using remote geophysical techniques to monitor the movement of injected brine has been evaluated. It was established that no single approach is likely to be identified that can be used to accurately monitor the precise location of the injected fluid. Several approaches have been considered in parallel because they add new dimensions to the existing monitoring capabilities, and are likely to cover a range of applications at a variety of geothermal sites. These include: microseismicity - a seismic net is used to record small magnitude events associated with injection; streaming potential - self potential anomalies produced by a moving fluid identify fluid flow direction; cross borehole geotomography - two-dimensional image of flow pathways is constructed using electromagnetic waves; and well pressure response to solid earth tide - changes in pore pressures are used to discriminate fracture/pore porosity and estimate fracture orientations.</p>Leaching study of PNL 76-68 glass beads using the LLNL continuous-flow method and the PNL-modified IAEA method. Final report2018-01-22T07:23:21-06:00https://digital.library.unt.edu/ark:/67531/metadc1057724/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1057724/"><img alt="Leaching study of PNL 76-68 glass beads using the LLNL continuous-flow method and the PNL-modified IAEA method. Final report" title="Leaching study of PNL 76-68 glass beads using the LLNL continuous-flow method and the PNL-modified IAEA method. Final report" src="https://digital.library.unt.edu/ark:/67531/metadc1057724/thumbnail/"/></a></p><p>Lawrence Livermore National Laboratory (LLNL) has conducted a long-term single-pass continuous-flow (SPCF) leaching test of the glass waste form PNL 76-68. Leaching rates of Np, Pu, and various stable elements were measured at 25/sup 0/ and 75/sup 0/C with three different solutions and three different flow rates. The purposes of the study were: (1) to compare SPCF leaching results with the results of a modified IAEA leach test performed by Pacific Northwest Laboratories (PNL); (2) to establish elemental leach rates and their variation with temperature, flow rate and solution composition; and (3) to gain insight into the leaching mechanisms. The LLNL and PNL leach tests yielded results which appear to agree within experimental uncertainties. The magnitude of the leach rates determined for Np and the glass matrix elements is 10/sup -5/ grams of glass/cm/sup 2/ geometric solid surface area/day. The rates increase with temperature and with solution flow rate, and are similar in brine and distilled water but higher in a bicarbonate solution. Other cations exhibit somewhat different behavior, and Pu in particular yields a much lower apparent leach rate, probably because of sorption or precipitation effects after release from the glass matrix. After the initial few days, most elements are leached at a constant rate. Matrix dissolution appears to be the most probable rate controlling step for the leaching of most elements.</p>Experimental observations and model calculations of impurity radiation in a plasma gun compact torus experiment2018-01-22T07:23:21-06:00https://digital.library.unt.edu/ark:/67531/metadc1053908/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1053908/"><img alt="Experimental observations and model calculations of impurity radiation in a plasma gun compact torus experiment" title="Experimental observations and model calculations of impurity radiation in a plasma gun compact torus experiment" src="https://digital.library.unt.edu/ark:/67531/metadc1053908/thumbnail/"/></a></p><p>Several types of radiation measurements were performed on the Beta II compact forms experiment. Among these are time integrated spectra ranging in wavelength from the vuv to the uv, time resolved bolometer measurements of radiation from the x-ray to the infrared, and time and wavelength resolved measurements of certain spectral lines. It is difficult to relate any one of these measurements to plasma parameters of interest such as temperature, density, or impurity content. In this report we compare the results of these, and other measurements with two simple models of the power balance in the plasma in order to estimate the effect of carbon and oxygen impurities on plasma lifetime.</p>Enhanced ion backscattering near 180/sup 0/ scattering angles in the two-atom scattering model. [Ion scattering from solids]2018-01-22T07:23:21-06:00https://digital.library.unt.edu/ark:/67531/metadc1059356/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1059356/"><img alt="Enhanced ion backscattering near 180/sup 0/ scattering angles in the two-atom scattering model. [Ion scattering from solids]" title="Enhanced ion backscattering near 180/sup 0/ scattering angles in the two-atom scattering model. [Ion scattering from solids]" src="https://digital.library.unt.edu/ark:/67531/metadc1059356/thumbnail/"/></a></p><p>An analytical two-atom scattering model has been developed to treat the recent discovery of the enhancement near 180/sup 0/ of Rutherford backscattering yields from disordered solids. In contrast to conventional calculations of Rutherford backscattering that treat scattering from a single atom only (the backscattering atom), the present model includes the interaction of a second atom lying between the target surface and the backscattering atom. The projectile ion makes a glancing collision with this second atom both before and after it is backscattered. A weighted average is made over all possible positions of this second atom. The model predicts an enhancement effect whose physical origin arises from the tolerance of path for those ions whose ingoing and outgoing trajectories lie in the vicinity of the critical impact parameter. Results using Moliere scattering show how the yield enhancement depends on ion energy, backscattering depth, exit angle, scattering potential, atomic numbers of the projectile and target, and target density. In the model the critical impact parameter and critical angle play important roles. It is shown that these quantities depend on a single dimensionless parameter and formulas accurate to better than 1% are given for them.</p>Sensitive and simple method for measuring wire tensions2018-01-22T07:23:21-06:00https://digital.library.unt.edu/ark:/67531/metadc1059437/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1059437/"><img alt="Sensitive and simple method for measuring wire tensions" title="Sensitive and simple method for measuring wire tensions" src="https://digital.library.unt.edu/ark:/67531/metadc1059437/thumbnail/"/></a></p><p>Measuring tension of wires in drift chambers and multiwire proportional chambers after construction is an important process because sometimes wires get loose after soldering, crimping or glueing. One needs to sort out wires which have tensions below a required minimum value to prevent electrostatic instabilities. There have been several methods reported on this subject in which the wires were excited either with sinusoidal current under magnetic field or with sinusoidal voltage electrostatically coupled to the wire, searching for a resonating frequency with which the wires vibrate mechanically. Then the vibration is detected either visually, optically or with magnetic pick-up directly touching the wires. Any of these is only applicable to the usual multiwire chamber which has open access to the wire plane. They also need fairly large excitation currents to induce a detectable vibration to the wires. Here we report a very simple method that can be used for any type of wire chamber or proportional tube system for measuring wire tension. Only a very small current is required for the wire excitation to obtain a large enough signal because it detects the induced emf voltage across a wire. A sine-wave oscillator and a digital voltmeter are sufficient devices aside from a permanent magnet to provide the magnetic field around the wire. A useful application of this method to a large system is suggested.</p>Fluidized-Bed Waste-Heat Recovery System development. Semiannual report, February 1-July 31, 19822018-01-22T07:23:21-06:00https://digital.library.unt.edu/ark:/67531/metadc1059810/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1059810/"><img alt="Fluidized-Bed Waste-Heat Recovery System development. Semiannual report, February 1-July 31, 1982" title="Fluidized-Bed Waste-Heat Recovery System development. Semiannual report, February 1-July 31, 1982" src="https://digital.library.unt.edu/ark:/67531/metadc1059810/thumbnail/"/></a></p><p>The Fluidized-Bed Waste-Heat Recovery (FBWHR) System is designed to preheat this combustion air using the heat available in dirty flue gas streams. In this system, a recirculating medium is heated by the flue gas in a fluidized bed. The hot medium is then removed from the bed and placed in a second fluidized bed where it is fluidized by the combustion air. Through this process, the combustion air is heated. The cooled medium is then returned to the first bed. Initial development of this concept is for the aluminum smelting industry.</p>Orientation study of the Lake Sunapee area, New Hampshire. National Uranium Resource Evaluation Program2018-01-22T07:23:21-06:00https://digital.library.unt.edu/ark:/67531/metadc1059780/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1059780/"><img alt="Orientation study of the Lake Sunapee area, New Hampshire. National Uranium Resource Evaluation Program" title="Orientation study of the Lake Sunapee area, New Hampshire. National Uranium Resource Evaluation Program" src="https://digital.library.unt.edu/ark:/67531/metadc1059780/thumbnail/"/></a></p><p>An orientation study was conducted in the area of Lake Sunapee, New Hampshire, in preparation for a hydrogeochemical and stream sediment reconnaissance in glacial terrain. The study was carried out by the Savannah River Laboratory as part of the National Uranium Resource Evaluation (NURE). Ground water, lake water, stream water, lake sediment, and stream sediment samples were collected at 188 sites. The concentrations of uranium and other elements were determined by neutron activation analysis. This report is issued in draft form, without detailed technical and copy editing. This was done to make the report available to the public before the end of the NURE program.</p>Sediment and radionuclide transport in rivers. Phase 3. Field sampling program for Cattaraugus and Buttermilk Creeks, New York2018-01-22T07:23:21-06:00https://digital.library.unt.edu/ark:/67531/metadc1058328/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1058328/"><img alt="Sediment and radionuclide transport in rivers. Phase 3. Field sampling program for Cattaraugus and Buttermilk Creeks, New York" title="Sediment and radionuclide transport in rivers. Phase 3. Field sampling program for Cattaraugus and Buttermilk Creeks, New York" src="https://digital.library.unt.edu/ark:/67531/metadc1058328/thumbnail/"/></a></p><p>A field sampling program was conducted on Cattaraugus and Buttermilk Creeks, New York during April 1979 to investigate the transport of radionuclides in surface waters as part of a continuing program to provide data for application and verification of Pacific Northwest Laboratory's (PNL) sediment and radionuclide transport model, SERATRA. Bed sediment, suspended sediment and water samples were collected during unsteady flow conditions over a 45 mile reach of stream channel. Radiological analysis of these samples included gamma ray spectrometry analysis, and radiochemical separation and analysis of Sr-90, Pu-238, Pu-239, 240, Am-241 and Cm-244. Tritium analysis was also performed on water samples. Based on the evaluation of radionuclide levels in Cattaraugus and Buttermilk Creeks, the Nuclear Fuel Services facility at West Valley, New York, may be the source of Cs-137, Sr-90, Cs-134, Co-60, Pu-238, Pu-239, 240, Am-241, Cm-244 and tritium found in the bed sediment, suspended sediment and water of Buttermilk and Cattaraugus Creeks. This field sampling effort was the last of a three phase program to collect hydrologic and radiologic data at different flow conditions.</p>Evaluation of uranium geochemical anomalies in the Greenville, SC, area, Greenville 1/sup 0/ x 2/sup 0/ Quadrangle (Greenville and Greer). National Uranium Resource Evaluation Program2018-01-22T07:23:21-06:00https://digital.library.unt.edu/ark:/67531/metadc1052880/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1052880/"><img alt="Evaluation of uranium geochemical anomalies in the Greenville, SC, area, Greenville 1/sup 0/ x 2/sup 0/ Quadrangle (Greenville and Greer). National Uranium Resource Evaluation Program" title="Evaluation of uranium geochemical anomalies in the Greenville, SC, area, Greenville 1/sup 0/ x 2/sup 0/ Quadrangle (Greenville and Greer). National Uranium Resource Evaluation Program" src="https://digital.library.unt.edu/ark:/67531/metadc1052880/thumbnail/"/></a></p><p>The Savannah River Laboratory (SRL) was involved in the National Uranium Resource Evaluation (NURE) from 1974 through 1981. The SRL role was to design and conduct and report the data from a geochemical reconnaissance of almost half the continental United States. The purpose of the work was to provide a basis for evaluation of the uranium potential of areas and to identify areas meriting some conventional geologic followup. More than 275,000 samples of stream sediment, soil, vegetation, and ground or surface water were collected in the program. As part of the development program to support interpretation of the geochemical data, SRL conducted a series of field studies to verify anomalies identified in the reconnaissance data. Subcontractors were selected to conduct field scintillometer surveys, compile geologic maps, collect additional samples, or provide other services as needed for a given study. This report presents the results of a small study in the Greenville 1/sup 0/ x 2/sup 0/ quadrangle. The study was conducted for SRL by Kenneth A. Sargent. This study is one of a series designed to provide a basis for interpretation of SRL regional geochemical reconnaissance data. It contains the results of a four-channel gamma spectrometer survey of an area around Greenville, South Carolina. The report is issued in draft form, without detailed technical and copy editing. This was done to make the report available to the public before the end of the NURE program.</p>Science and art in heavy-ion collisions2018-01-22T07:23:21-06:00https://digital.library.unt.edu/ark:/67531/metadc1052882/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1052882/"><img alt="Science and art in heavy-ion collisions" title="Science and art in heavy-ion collisions" src="https://digital.library.unt.edu/ark:/67531/metadc1052882/thumbnail/"/></a></p><p>One of the more intriguing phenomena discovered in heavy-ion physics is the seeming appearance of high energy structure in the excitation spectra of inelastically scattered heavy ions. For reasons illustrated, these may well be a phenomena unique to heavy ions and their explanation perhaps unique to TDHF.</p>Dynamic performance of packed-bed dehumidifiers: experimental results from the SERI desiccant test loop2018-01-22T07:23:21-06:00https://digital.library.unt.edu/ark:/67531/metadc1052885/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1052885/"><img alt="Dynamic performance of packed-bed dehumidifiers: experimental results from the SERI desiccant test loop" title="Dynamic performance of packed-bed dehumidifiers: experimental results from the SERI desiccant test loop" src="https://digital.library.unt.edu/ark:/67531/metadc1052885/thumbnail/"/></a></p><p>Discussed are the design and construction of a desiccant test loop and results of tests with a silica-gel-packed bed. The test loop consists of two centrifugal fans, two duct heaters, a steam humidifier, 24.4m (80 ft) of 30-cm (12-in.) circular duct, instrumentation, and a test section. The loop is capable of testing adsorption and desorption modes at flow rates up to 0.340 kg/s (600 scfm) and at regeneration temperatures up to 120/sup 0/C (248/sup 0/F). Tests of a 74-cm(29-in.)-diameter, 3.2-cm(1.25-in.)-thick silica gel bed indicated that mass transfer occurs more readily in the adsorption direction than in the desorption direction. Pressure drop data indicated that the resistance of each of the two screens that hold the silica gel in place was equivalent to 2.5-cm(1-in.) of silica gel due to plugging. Results of the tests were also used to validate a SERI desiccant computer model, DESSIM.</p>Radon and aerosol release from open-pit uranium mining2018-01-22T07:23:21-06:00https://digital.library.unt.edu/ark:/67531/metadc1052997/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1052997/"><img alt="Radon and aerosol release from open-pit uranium mining" title="Radon and aerosol release from open-pit uranium mining" src="https://digital.library.unt.edu/ark:/67531/metadc1052997/thumbnail/"/></a></p><p>The quantity of /sup 222/Rn (hereafter called radon) released per unit of uranium produced from open pit mining has been determined. A secondary objective was to determine the nature and quantity of airborne particles resulting from mine operations. To accomplish these objectives, a comprehensive study of the release rates of radon and aerosol material to the atmosphere was made over a one-year period from April 1979 to May 1980 at the Morton Ranch Mine which was operated by United Nuclear Corporation (UNC) in partnership with Tennessee Valley Authority (TVA). The mine is now operated for TVA by Silver King Mines. Morton Ranch Mine was one of five open pit uranium mines studied in central Wyoming. Corroborative measurements were made of radon flux and /sup 226/Ra (hereafter called radium) concentrations of various surfaces at three of the other mines in October 1980 and again at these three mines plus a fourth in April of 1981. Three of these mines are located in the Powder River Basin, about 80 kilometers east by northeast of Casper. One is located in the Shirley Basin, about 60 km south of Casper, and the remaining one is located in the Gas Hills, approximately 100 km west of Casper. The one-year intensive study included simultaneous measurement of several parameters: continuous measurement of atmospheric radon concentration near the ground at three locations, monthly 24-hour radon flux measurements from various surfaces, radium analyses of soil samples collected under each of the flux monitoring devices, monthly integrations of aerosols on dichotomous aerosol samplers, analysis of aerosol samplers for total dust loading, aerosol elemental and radiochemical composition, aerosol elemental composition by particle size, wind speed, wind direction, temperature, barometric pressure, and rainfall.</p>Determination of adenosine triphosphate on marine particulates: synthesis of methods for use on OTEC samples2018-01-22T07:23:21-06:00https://digital.library.unt.edu/ark:/67531/metadc1053244/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1053244/"><img alt="Determination of adenosine triphosphate on marine particulates: synthesis of methods for use on OTEC samples" title="Determination of adenosine triphosphate on marine particulates: synthesis of methods for use on OTEC samples" src="https://digital.library.unt.edu/ark:/67531/metadc1053244/thumbnail/"/></a></p><p>Adenosine triphosphate (ATP) is an indicator of living biomass in marine particulates. This report details the method used by Lawrence Berkeley Laboratory to analyze particulate ATP in samples taken from oligotrophic, tropical ocean waters. It represents a synthesis of previously published methods.</p>Seismic Safety Margins Research Program: Phase II program plan (FY 83-FY 84)2018-02-04T10:51:49-06:00https://digital.library.unt.edu/ark:/67531/metadc1068123/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1068123/"><img alt="Seismic Safety Margins Research Program: Phase II program plan (FY 83-FY 84)" title="Seismic Safety Margins Research Program: Phase II program plan (FY 83-FY 84)" src="https://digital.library.unt.edu/ark:/67531/metadc1068123/thumbnail/"/></a></p><p>The Seismic Safety Margins Research Program (SSMRP) is an NRC-funded, multiyear program conducted by Lawrence Livermore National Laboratory (LLNL). Its goal is to develop a complete, fully coupled analysis procedure (including methods and computer codes) for estimating the risk of an earthquake-caused radioactive release from a commercial nuclear power plant. The analysis procedure is based upon a state-of-the-art evaluation of the current seismic analysis and design process and explicitly includes the uncertainties inherent in such a process. The results will be used to improve seismic licensing requirements for nuclear power plants. As currently planned, the SSMRP will be completed in September, 1984. This document presents the program plan for work to be done during the remainder of the program. In Phase I of the SSMRP, the necessary tools (both computer codes and data bases) for performing a detailed seismic risk analysis were identified and developed. Demonstration calculations were performed on the Zion Nuclear Power Plant. In the remainder of the program (Phase II) work will be concentrated on developing a simplified SSMRP methodology for routine probabilistic risk assessments, quantitative validation of the tools developed and application of the simplified methodology to a Boiling Water Reactor. (The Zion plant is a pressurized water reactor.) In addition, considerable effort will be devoted to making the codes and data bases easily accessible to the public.</p>Geothermal energy: opportunities for California commerce. Final report2018-02-04T10:51:49-06:00https://digital.library.unt.edu/ark:/67531/metadc1066272/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1066272/"><img alt="Geothermal energy: opportunities for California commerce. Final report" title="Geothermal energy: opportunities for California commerce. Final report" src="https://digital.library.unt.edu/ark:/67531/metadc1066272/thumbnail/"/></a></p><p>This report provides a preliminary engineering and economic assessment of five direct use projects using low and moderate temperature geothermal resources. Each project site and end-use application was selected because each has a high potential for successful, near-term (2 to 5 years) commercial development. The report also includes an extensive bibliography, and reference and contact lists. The five projects are: Wendel Agricultural Complex, East Mesa Livestock Complex, East Mesa Vegetable Dehydration Facility, Calapatria Heating District and Bridgeport Heating District. The projects involve actual investors, resource owners, and operators with varying financial commitments for project development. For each project, an implementation plan is defined which identifies major barriers to development and methods to overcome them. All projects were determined to be potentially feasible. Three of the projects cascade heat from a small-scale electric generator to direct use applications. Small-scale electric generation technology (especially in the 0.5 to 3 MW range) has recently evolved to such a degree as to warrant serious consideration. These systems provide a year-round heating load and substantially improve the economic feasibility of most direct use energy projects using geothermal resources above 200/sup 0/F.</p>Environmental analysis of Acid/middle Pueblo Canyon, Los Alamos, New Mexico2018-01-22T07:23:21-06:00https://digital.library.unt.edu/ark:/67531/metadc1060865/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1060865/"><img alt="Environmental analysis of Acid/middle Pueblo Canyon, Los Alamos, New Mexico" title="Environmental analysis of Acid/middle Pueblo Canyon, Los Alamos, New Mexico" src="https://digital.library.unt.edu/ark:/67531/metadc1060865/thumbnail/"/></a></p><p>The radiological survey of the former radioactive waste treatment plant site (TA-45), Acid Canyon, and Pueblo Canyon found residual radioactivity at the site itself and in the channel and banks of Acid, Pueblo, and lower Los Alamos Canyons, all the way to the Rio Grande. The largest reservoir of radioactive material is in lower Pueblo Canyon, which is on DOE property. The only areas where residual radioactivity exceeds the proposed cleanup criteria are at the former vehicle decontamination facility, located between the former treatment plant site and Acid Canyon, around the former untreated waste outfall and for a short distance below, and in two small areas farther down in Acid Canyon. The three alternatives proposed are (1) to take no action, (2) to fence the areas where the residual radioactivity exceeds the proposed criteria (minimal action), and (3) to clean up the former vehicle decontamination facility and around the former untreated waste outfall. Calculations based on actual measurements indicate that the annual dose at the location having the greatest residual radioactivity would be about 12% of the applicable guideline. Most doses are much smaller than that. No environmental impacts are associated with either the no-action or minimal action alternatives. The impact associated with the cleanup alternative is very small. The preferred alternative is to clean up the areas around the former vehicle decontamination facility and the untreated waste outfall. This course of action is recommended not because of any real danger associated with the residual radioactivity, but rather because the cleanup operation is a minor effort and would conform with the ALARA (as low as reasonably achievable) philosophy.</p>Shawmut hydroelectric redevelopment project. Final technical and construction cost report2018-01-22T07:23:21-06:00https://digital.library.unt.edu/ark:/67531/metadc1061191/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1061191/"><img alt="Shawmut hydroelectric redevelopment project. Final technical and construction cost report" title="Shawmut hydroelectric redevelopment project. Final technical and construction cost report" src="https://digital.library.unt.edu/ark:/67531/metadc1061191/thumbnail/"/></a></p><p>This report describes the major steps undertaken by the Central Maine Power Company to redevelop an old existing lowhead (19 to 23 ft) hydroelectric station and, at the same time, demonstrate the commercial viability of such a venture. The report addresses the process of site selection, preliminary conceptual design for determining economic viability, licensing and the regulatory process, final design, and project construction with the objective of presenting to the reader a technical and economical guide useful for a similar undertaking.</p>Calculation of parameters for inspection planning and evaluation: mixed-oxide fuel fabrication facilities2018-01-22T07:23:21-06:00https://digital.library.unt.edu/ark:/67531/metadc1060947/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1060947/"><img alt="Calculation of parameters for inspection planning and evaluation: mixed-oxide fuel fabrication facilities" title="Calculation of parameters for inspection planning and evaluation: mixed-oxide fuel fabrication facilities" src="https://digital.library.unt.edu/ark:/67531/metadc1060947/thumbnail/"/></a></p><p>As part of Task C.35 (Calculation of Parameters for Inspection Planning and Evaluation) of the US Program of Technical Assistance to IAEA Safeguards, Pacific Northwest Laboratory has performed some quantitative analyses of IAEA inspection activities for mixed-oxide fuel fabrication facilities. There were four distinct efforts involved in this task. These were as follows: show the effect on a material balance verification of using two variables measurement methods in some strata; perform additional calculations for the reference facility described in STR-89; modify the INSPECT computer programs to be used as an after-inspection analysis tool, as well as a preinspection planning tool; provide written comments and explantations of text and graphs of the first draft of STR-89, Safeguards Considerations for Mixed-Oxide Fuel Element Fabrication Facilities, by W. Bahm, T. Shea, and D. Tolchenkov, System Studies Section, IAEA.</p>Unification of Yang-Mills theory and supergravity in ten dimensions2018-01-22T07:23:21-06:00https://digital.library.unt.edu/ark:/67531/metadc1060949/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1060949/"><img alt="Unification of Yang-Mills theory and supergravity in ten dimensions" title="Unification of Yang-Mills theory and supergravity in ten dimensions" src="https://digital.library.unt.edu/ark:/67531/metadc1060949/thumbnail/"/></a></p><p>We show how to generalize the coupling of n=1 super-Maxwell theory and n=1 supergravity in 10-dimensions to the case of a non-abelian gauge group. We find that the supergravity 2-form potential a/sub ..mu nu../ is coupled to the Yang-Mills gauge potential A/sub ..mu../ via the Chern-Simons 3-form.</p>Review of uncertainty estimates associated with models for assessing the impact of breeder reactor radioactivity releases2018-01-22T07:23:21-06:00https://digital.library.unt.edu/ark:/67531/metadc1061450/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1061450/"><img alt="Review of uncertainty estimates associated with models for assessing the impact of breeder reactor radioactivity releases" title="Review of uncertainty estimates associated with models for assessing the impact of breeder reactor radioactivity releases" src="https://digital.library.unt.edu/ark:/67531/metadc1061450/thumbnail/"/></a></p><p>The purpose is to summarize estimates based on currently available data of the uncertainty associated with radiological assessment models. The models being examined herein are those recommended previously for use in breeder reactor assessments. Uncertainty estimates are presented for models of atmospheric and hydrologic transport, terrestrial and aquatic food-chain bioaccumulation, and internal and external dosimetry. Both long-term and short-term release conditions are discussed. The uncertainty estimates presented in this report indicate that, for many sites, generic models and representative parameter values may be used to calculate doses from annual average radionuclide releases when these calculated doses are on the order of one-tenth or less of a relevant dose limit. For short-term, accidental releases, especially those from breeder reactors located in sites dominated by complex terrain and/or coastal meteorology, the uncertainty in the dose calculations may be much larger than an order of magnitude. As a result, it may be necessary to incorporate site-specific information into the dose calculation under these circumstances to reduce this uncertainty. However, even using site-specific information, natural variability and the uncertainties in the dose conversion factor will likely result in an overall uncertainty of greater than an order of magnitude for predictions of dose or concentration in environmental media following shortterm releases.</p>Hybrid charged-particle guide for studying (n, charged particle) reactions2018-01-22T07:23:21-06:00https://digital.library.unt.edu/ark:/67531/metadc1060460/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1060460/"><img alt="Hybrid charged-particle guide for studying (n, charged particle) reactions" title="Hybrid charged-particle guide for studying (n, charged particle) reactions" src="https://digital.library.unt.edu/ark:/67531/metadc1060460/thumbnail/"/></a></p><p>Charged-particle transport systems consisting of magnetic quadrupole lenses have been employed in recent years in the study of (n, charged particle) reactions. We have completed a new transport system that is based both on magnetic lenses as well as electrostatic fields. The magnetic focusing of this charged-particle guide is provided by six magnetic quadrupole lenses arranged in a CDCCDC sequence (in the vertical plane). The electrostatic field is produced by a wire at high voltage which stretches the length of the guide and is physically at the center of the magnetic axis. The magnetic lenses are used for charged particles above 5 MeV; the electrostatic guide is used for lower energies. This hybrid system possesses the excellent focusing and background rejection properties of other magnetic systems. For low energy charged-particles, the electrostatic transport avoids the narrow band-passes in charged-particle energy which are a problem with purely magnetic transport systems. This system is installed at the LLNL Cyclograaff facility for the study of (n, charged particle) reactions at neutron energies up to 35 MeV.</p>Technological options for management of hazardous wastes from US Department of Energy facilities2018-02-04T10:51:49-06:00https://digital.library.unt.edu/ark:/67531/metadc1069695/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1069695/"><img alt="Technological options for management of hazardous wastes from US Department of Energy facilities" title="Technological options for management of hazardous wastes from US Department of Energy facilities" src="https://digital.library.unt.edu/ark:/67531/metadc1069695/thumbnail/"/></a></p><p>This report provides comprehensive information on the technological options for management of hazardous wastes generated at facilities owned or operated by the US Department of Energy (DOE). These facilities annually generate a large quantity of wastes that could be deemed hazardous under the Resource Conservation and Recovery Act (RCRA). Included in these wastes are liquids or solids containing polychlorinated biphenyls, pesticides, heavy metals, waste oils, spent solvents, acids, bases, carcinogens, and numerous other pollutants. Some of these wastes consist of nonnuclear hazardous chemicals; others are mixed wastes containing radioactive materials and hazardous chemicals. Nearly 20 unit processes and disposal methods are presented in this report. They were selected on the basis of their proven utility in waste management and potential applicability at DOE sites. These technological options fall into five categories: physical processes, chemical processes, waste exchange, fixation, and ultimate disposal. The options can be employed for either resource recovery, waste detoxification, volume reduction, or perpetual storage. Detailed descriptions of each technological option are presented, including information on process performance, cost, energy and environmental considerations, waste management of applications, and potential applications at DOE sites. 131 references, 25 figures, 23 tables.</p>Uniform laser ablative acceleration of targets at 10/sup 14/ W/cm/sup 2/2018-01-22T07:23:21-06:00https://digital.library.unt.edu/ark:/67531/metadc1060725/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1060725/"><img alt="Uniform laser ablative acceleration of targets at 10/sup 14/ W/cm/sup 2/" title="Uniform laser ablative acceleration of targets at 10/sup 14/ W/cm/sup 2/" src="https://digital.library.unt.edu/ark:/67531/metadc1060725/thumbnail/"/></a></p><p>We present the first detailed investigations of the ablative acceleration of planar targets while simultaneously using high irradiance (10/sup 14/ W/cm/sup 2/), large focal diameters (1 mm) and long laser pulse duration (3 nsec). Included are measurements of target preheat, ablation pressures and uniformity achieved under these conditions. Targets were accelerated to high velocities with velocity profile uniformity approaching that required for high gain pellet implosions.</p>ECRH and transport modeling in tandem mirrors and divertor physics. Task II. Annual progress report on fusion plasma theory, January 1-September 31, 19822018-01-22T07:23:21-06:00https://digital.library.unt.edu/ark:/67531/metadc1056668/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1056668/"><img alt="ECRH and transport modeling in tandem mirrors and divertor physics. Task II. Annual progress report on fusion plasma theory, January 1-September 31, 1982" title="ECRH and transport modeling in tandem mirrors and divertor physics. Task II. Annual progress report on fusion plasma theory, January 1-September 31, 1982" src="https://digital.library.unt.edu/ark:/67531/metadc1056668/thumbnail/"/></a></p><p>A summary of work during this period is given for the following: ecrh and transport modeling in tandem mirrors and divertor physics. (MOW)</p>Hydrogeochemical and stream-sediment reconnaissance, orientation study, Ouachita Mountain area, Arkansas. National Uranium Resource Evaluation Program2018-01-22T07:23:21-06:00https://digital.library.unt.edu/ark:/67531/metadc1056389/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1056389/"><img alt="Hydrogeochemical and stream-sediment reconnaissance, orientation study, Ouachita Mountain area, Arkansas. National Uranium Resource Evaluation Program" title="Hydrogeochemical and stream-sediment reconnaissance, orientation study, Ouachita Mountain area, Arkansas. National Uranium Resource Evaluation Program" src="https://digital.library.unt.edu/ark:/67531/metadc1056389/thumbnail/"/></a></p><p>A hydrogeochemical ground water orientation study was conducted in the multi-mineralized area of the Ouachita Mountains, Arkansas in order to evaluate the usefulness of ground water as a sampling medium for uranium exploration in similar areas. Ninety-three springs and nine wells were sampled in Clark, Garland, Hot Springs, Howard, Montgomery, Pike, Polk, and Sevier Counties. Manganese, barite, celestite, cinnabar, stibnite, copper, lead, and zinc are present. The following parameters were determined: pH, conductivity, alkalinity, U, Br, Cl, F, He, Mn, Na, V, Al, Dy, NO/sub 3/, NH/sub 3/, SO/sub 4/, and PO/sub 4/. The minerals appear to significantly affect the chemistry of the ground water. This report is issued in draft form, without detailed technical and copy editing. This was done to make the report available to the public before the end of the National Uranium Resource Evaluation.</p>Streaked x-ray microscopy of laser-fusion targets2018-01-22T07:23:21-06:00https://digital.library.unt.edu/ark:/67531/metadc1056260/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1056260/"><img alt="Streaked x-ray microscopy of laser-fusion targets" title="Streaked x-ray microscopy of laser-fusion targets" src="https://digital.library.unt.edu/ark:/67531/metadc1056260/thumbnail/"/></a></p><p>An ultrafast soft x-ray streak camera has been coupled to a Wolter axisymmetric x-ray microscope. This system was used to observe the dynamics of laser fusion targets both in self emission and backlit by laser produced x-ray sources. Spatial resolution was 7 ..mu..m and temporal resolution was 20 ps. Data is presented showing the ablative acceleration of foils to velocities near 10/sup 7/ cm/sec and the collision of an accelerated foil with a second foil, observed using 3 keV streaked x-ray backlighting. Good agreement was found between hydrocode simulations, simple models of the ablative acceleration and the observed velocities of the carbon foils.</p>Computed solid phases limiting the concentration of dissolved constituents in basalt aquifers of the Columbia Plateau in eastern Washington. Geochemical modeling and nuclide/rock/groundwater interaction studies2018-01-22T07:23:21-06:00https://digital.library.unt.edu/ark:/67531/metadc1057850/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1057850/"><img alt="Computed solid phases limiting the concentration of dissolved constituents in basalt aquifers of the Columbia Plateau in eastern Washington. Geochemical modeling and nuclide/rock/groundwater interaction studies" title="Computed solid phases limiting the concentration of dissolved constituents in basalt aquifers of the Columbia Plateau in eastern Washington. Geochemical modeling and nuclide/rock/groundwater interaction studies" src="https://digital.library.unt.edu/ark:/67531/metadc1057850/thumbnail/"/></a></p><p>A speciation-solubility geochemical model, WATEQ2, was used to analyze geographically-diverse, ground-water samples from the aquifers of the Columbia Plateau basalts in eastern Washington. The ground-water samples compute to be at equilibrium with calcite, which provides both a solubility control for dissolved calcium and a pH buffer. Amorphic ferric hydroxide, Fe(OH)/sub 3/(A), is at saturation or modestly oversaturated in the few water samples with measured redox potentials. Most of the ground-water samples compute to be at equilibrium with amorphic silica (glass) and wairakite, a zeolite, and are saturated to oversaturated with respect to allophane, an amorphic aluminosilicate. The water samples are saturated to undersaturated with halloysite, a clay, and are variably oversaturated with regard to other secondary clay minerals. Equilibrium between the ground water and amorphic silica presumably results from the dissolution of the glassy matrix of the basalt. The oversaturation of the clay minerals other than halloysite indicates that their rate of formation lags the dissolution rate of the basaltic glass. The modeling results indicate that metastable amorphic solids limit the concentration of dissolved silicon and suggest the same possibility for aluminum and iron, and that the processes of dissolution of basaltic glass and formation of metastable secondary minerals are continuing even though the basalts are of Miocene age. The computed solubility relations are found to agree with the known assemblages of alteration minerals in the basalt fractures and vesicles. Because the chemical reactivity of the bedrock will influence the transport of solutes in ground water, the observed solubility equilibria are important factors with regard to chemical-retention processes associated with the possible migration of nuclear waste stored in the earth's crust.</p>Drill-pipe severing tool with high-temperature explosive2018-01-22T07:23:21-06:00https://digital.library.unt.edu/ark:/67531/metadc1060447/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1060447/"><img alt="Drill-pipe severing tool with high-temperature explosive" title="Drill-pipe severing tool with high-temperature explosive" src="https://digital.library.unt.edu/ark:/67531/metadc1060447/thumbnail/"/></a></p><p>A special-purpose borehole explosive tool designed to meet a need of the Los Alamos National laboratory Hot Dry Rock (HDR) Geothermal Energy Development Program is described. This tool's particular purpose is to sever stuck drill pipe in deep (> 4500 m), hot (> 320/sup 0/C), water-filled wellbores. No commercial severing tools are known to us that can be operated at temperatures above 260/sup 0/C.</p>Preliminary investigation of a technique to separate fission noble metals from fission product mixtures2018-01-22T07:23:21-06:00https://digital.library.unt.edu/ark:/67531/metadc1059531/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1059531/"><img alt="Preliminary investigation of a technique to separate fission noble metals from fission product mixtures" title="Preliminary investigation of a technique to separate fission noble metals from fission product mixtures" src="https://digital.library.unt.edu/ark:/67531/metadc1059531/thumbnail/"/></a></p><p>A variation of the gold-ore fire assay technique was examined as a method for recovering Pd, Rh and Ru from fission products. The mixture of fission product oxides is combined with glass-forming chemicals, a metal oxide such as PbO (scavenging agent), and a reducing agent such as charcoal. When this mixture is melted, a metal button is formed which extracts the noble metals. The remainder cools to form a glass for nuclear waste storage. Recovery depended only on reduction of the scavenger oxide to metal. When such reduction was achieved, no difference in noble metal recovery efficiency was found among the scavengers studied (PbO, SnO, CuO, Bi/sub 2/O/sub 3/, Sb/sub 2/O/sub 3/). Not all reducing agents studied, however, were able to reduce all scavenger oxides to metal. Only graphite would reduce SnO and CuO and allow noble metal recovery. The scavenger oxides Sb/sub 2/O/sub 3/, Bi/sub 2/O/sub 3/, and PbO, however, were reduced by all of the reducing agents tested. Similar noble metal recovery was found with each. Lead oxide was found to be the most promising of the potential scavengers. It was reduced by all of the reducing agents tested, and its higher density may facilitate the separation. Use of lead oxide also appeared to have no deterimental effect on the glass quality. Charcoal was identified as the preferred reducing agent. As long as a separable metal phase was formed in the melt, noble metal recovery was not dependent on the amount of reducing agent and scavenger oxide. High glass viscosities inhibited separation of the molten scavenger, while low viscosities allowed volatile loss of RuO/sub 4/. A viscosity of approx. 20 poise at the processing temperature offered a good compromise between scavenger separation and Ru recovery. Glasses in which PbO was used as the scavenging agent were homogeneous in appearance. Resistance to leaching was close to that of certain waste glasses reported in the literature. 12 figures. 7 tables.</p>Planar numerical cosmology. I. The differential equations2018-01-22T07:23:21-06:00https://digital.library.unt.edu/ark:/67531/metadc1060604/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1060604/"><img alt="Planar numerical cosmology. I. The differential equations" title="Planar numerical cosmology. I. The differential equations" src="https://digital.library.unt.edu/ark:/67531/metadc1060604/thumbnail/"/></a></p><p>This paper is the first in a series describing a method for evolving planar cosmological models on a computer. In this paper we set forth our coordinate conditions and variables, and discuss the way our special gauge simplifies the numerical evolution. We write down the Einstein equations that govern the gravitational field in our cosmologies, as well as the hydrodynamical equations for the fluid souces. Later papers in this series will present the differencing of these equations, tests of the code, and evolutions of dynamical inhomogeneous cosmological models. 25 references.</p>Analysis of the effects of integrating wind turbines into a conventional utility: a case study. Final report2018-01-22T07:23:21-06:00https://digital.library.unt.edu/ark:/67531/metadc1060075/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1060075/"><img alt="Analysis of the effects of integrating wind turbines into a conventional utility: a case study. Final report" title="Analysis of the effects of integrating wind turbines into a conventional utility: a case study. Final report" src="https://digital.library.unt.edu/ark:/67531/metadc1060075/thumbnail/"/></a></p><p>The impact on a utility incorporating wind turbine generation due to wind speed sampling frequency, wind turbine performance model, and wind speed forecasting accuracy is examined. The utility analyzed in the study was the Los Angeles Department of Water and Power and the wind turbine assumed was the MOD-2. The sensitivity of the economic value of wind turbine generation to wind speed sampling frequency and wind turbine modeling technique is examined as well as the impact of wind forecasting accuracy on utility operation and production costs. Wind speed data from San Gorgonio Pass, California during 1979 are used to estimate wind turbine performance using four different simulation methods. (LEW)</p>Energy history chronology from World War II to the present2018-01-22T07:23:21-06:00https://digital.library.unt.edu/ark:/67531/metadc1060778/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1060778/"><img alt="Energy history chronology from World War II to the present" title="Energy history chronology from World War II to the present" src="https://digital.library.unt.edu/ark:/67531/metadc1060778/thumbnail/"/></a></p><p>This report provides a basic guide to the major Presidential, Legislative, Judicial, and Federal agency actions relating to energy policy, research, development, and regulation in recent years. The chronology is arranged synoptically, allowing users to reference easily the historical context in which each event occurred. Summaries of Presidential, Legislative, and Judicial actions relating to energy, rosters of federal energy officials, and a genealogy of federal energy agencies are also provided in separate appendices. The Energy History Chronology was prepared in conjunction with the History Division's series of pamphlets on the Institutional Origins of the Department of Energy. The series includes concise histories of the Department of Energy, the Energy Research and Development Administration, the Federal Energy Administration, and the Atomic Energy Commission. All significant events and achievements noted in the institutional history are also listed.</p>State-of-practice review of ultrasonic in-service inspection of Class I system piping in commercial nuclear power plants2018-01-22T07:23:21-06:00https://digital.library.unt.edu/ark:/67531/metadc1059950/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1059950/"><img alt="State-of-practice review of ultrasonic in-service inspection of Class I system piping in commercial nuclear power plants" title="State-of-practice review of ultrasonic in-service inspection of Class I system piping in commercial nuclear power plants" src="https://digital.library.unt.edu/ark:/67531/metadc1059950/thumbnail/"/></a></p><p>The Pacific Northwest Laboratory conducted a survey to determine the state of practice of ultrasonic in-service inspection of primary system piping in light water reactors. Personnel at four utilities, five inspection organizations, and three domestic reactor manufacturers were interviewed. The intention of the study was to provide a better understanding of the actual practices employed in in-service inspection of primary system piping and of the difficulties encountered.</p>Rescaling of equipotential smoothing2018-01-22T07:23:21-06:00https://digital.library.unt.edu/ark:/67531/metadc1059952/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1059952/"><img alt="Rescaling of equipotential smoothing" title="Rescaling of equipotential smoothing" src="https://digital.library.unt.edu/ark:/67531/metadc1059952/thumbnail/"/></a></p><p>A method is described for locally rescaling the curvilinear coordinates used in continuous rezoning of Lagrangian meshes by the equipotential method. In this way the zone aspect ratio may be brought closer to unity.</p>Collins' bypass for the main ring2018-01-22T07:23:21-06:00https://digital.library.unt.edu/ark:/67531/metadc1060362/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1060362/"><img alt="Collins' bypass for the main ring" title="Collins' bypass for the main ring" src="https://digital.library.unt.edu/ark:/67531/metadc1060362/thumbnail/"/></a></p><p>Design of the bypass for the main ring at Fermilab is discussed. Specific design features discussed include space, path length, geometric closure, matching of betatron functions, and external dispersion. Bypass parameters are given. (GHT)</p>Environmental assessment related to the operation of Argonne National Laboratory, Argonne, Illinois2018-02-04T10:51:49-06:00https://digital.library.unt.edu/ark:/67531/metadc1071116/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1071116/"><img alt="Environmental assessment related to the operation of Argonne National Laboratory, Argonne, Illinois" title="Environmental assessment related to the operation of Argonne National Laboratory, Argonne, Illinois" src="https://digital.library.unt.edu/ark:/67531/metadc1071116/thumbnail/"/></a></p><p>In order to evaluate the environmental impacts of Argonne National Laboratory (ANL) operations, this assessment includes a descriptive section which is intended to provide sufficient detail to allow the various impacts to be viewed in proper perspective. In particular, details are provided on site characteristics, current programs, characterization of the existing site environment, and in-place environmental monitoring programs. In addition, specific facilities and operations that could conceivably impact the environment are described at length. 77 refs., 16 figs., 47 tabs.</p>[Photograph 2012.201.B0052.0655]2013-10-11T20:30:49-05:00https://gateway.okhistory.org/ark:/67531/metadc204744/<p><a href="https://gateway.okhistory.org/ark:/67531/metadc204744/"><img alt="[Photograph 2012.201.B0052.0655]" title="[Photograph 2012.201.B0052.0655]" src="https://gateway.okhistory.org/ark:/67531/metadc204744/thumbnail/"/></a></p><p>Photograph taken for a newspaper owned by the Oklahoma Publishing Company. Caption: "Rescue workers carry an injured Donna Little, 25, out of the ditch in which her car was found."</p>Advanced Fuel Cell Development Progress Report: April-June 19812015-08-04T08:33:54-05:00https://digital.library.unt.edu/ark:/67531/metadc283362/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc283362/"><img alt="Advanced Fuel Cell Development Progress Report: April-June 1981" title="Advanced Fuel Cell Development Progress Report: April-June 1981" src="https://digital.library.unt.edu/ark:/67531/metadc283362/thumbnail/"/></a></p><p>Quarterly report discussing fuel cell research and development work at Argonne National Laboratory (ANL). This report describes efforts directed toward (1) improving understanding of component behavior in molten carbonate fuel cells and (2) developing alternative concepts for components. The principal focus has been on the development of sintered y-LiAIO2 electrolyte supports, stable NiO cathodes, and hydrogen diffusion barriers. Cell tests were performed to assess diffusion barriers and to study cathode voltage relaxation following current interruption.</p>Control Rods in LMFBRs: A Physics Assessment2015-08-04T08:33:54-05:00https://digital.library.unt.edu/ark:/67531/metadc283533/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc283533/"><img alt="Control Rods in LMFBRs: A Physics Assessment" title="Control Rods in LMFBRs: A Physics Assessment" src="https://digital.library.unt.edu/ark:/67531/metadc283533/thumbnail/"/></a></p><p>This physics assessment is based on roughly 300 control rod worth measurements in ZPPR from 1972 to 1981. All ZPPR assemblies simulated mixed-oxide LMFBRs, representing sizes of 350, 700, and 900 MWe. Control rod worth measurements included single rods, various combinations of rods, and tantalum and europium rods. Additional measurements studied variations in B4C enrichment, rod interaction effects, variations in rod geometry, neutron streaming in sodium-filled channels, and axial worth profiles. Analyses were done with design-equivalent methods, using ENDF/B Version IV data. Some computations for the sensitivities to approximations in the methods have been included. Comparisons of these analyses with the experiments have allowed the status of control rod physics in the US to be clearly defined.</p>JAKEF: A Portable Symbolic Differentiator of Functions Given by Algorithms2015-08-04T08:33:54-05:00https://digital.library.unt.edu/ark:/67531/metadc283546/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc283546/"><img alt="JAKEF: A Portable Symbolic Differentiator of Functions Given by Algorithms" title="JAKEF: A Portable Symbolic Differentiator of Functions Given by Algorithms" src="https://digital.library.unt.edu/ark:/67531/metadc283546/thumbnail/"/></a></p><p>JAKEF is a compiler that accepts as data a single or double precision FORTRAN subroutine program defining an objective function F(x) or a vector function f(x) and produces as output a single or double precision FORTRAN program defining the gradient of F(x) or the Jacobian of f(x).</p>NDA Safeguards Techniques for LMFBR Assemblies2015-08-04T08:33:54-05:00https://digital.library.unt.edu/ark:/67531/metadc283547/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc283547/"><img alt="NDA Safeguards Techniques for LMFBR Assemblies" title="NDA Safeguards Techniques for LMFBR Assemblies" src="https://digital.library.unt.edu/ark:/67531/metadc283547/thumbnail/"/></a></p><p>Report discussing safeguards for liquid-metal fast breeder reactors (LMFBFRs) and their fuel handling systems.</p>[Photograph 2012.201.B0137.0585]2014-08-05T20:50:40-05:00https://gateway.okhistory.org/ark:/67531/metadc307957/<p><a href="https://gateway.okhistory.org/ark:/67531/metadc307957/"><img alt="[Photograph 2012.201.B0137.0585]" title="[Photograph 2012.201.B0137.0585]" src="https://gateway.okhistory.org/ark:/67531/metadc307957/thumbnail/"/></a></p><p>Photograph used for a story in the Oklahoma Times newspaper. Caption: "Ralph and Nancy Clore, left, and Ric and Jennie Penner fill their plates with tacos and refried beans."</p>[Photograph 2012.201.B0147.0444]2014-08-05T20:50:40-05:00https://gateway.okhistory.org/ark:/67531/metadc308733/<p><a href="https://gateway.okhistory.org/ark:/67531/metadc308733/"><img alt="[Photograph 2012.201.B0147.0444]" title="[Photograph 2012.201.B0147.0444]" src="https://gateway.okhistory.org/ark:/67531/metadc308733/thumbnail/"/></a></p><p>Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Looking over some of the sailing paraphernalia that accompanied the Alpha Chi Omega alumnae's Spring Fling are, from left, Frankie Craig."</p>[Photograph 2012.201.B0144.0091]2014-08-05T20:50:40-05:00https://gateway.okhistory.org/ark:/67531/metadc312201/<p><a href="https://gateway.okhistory.org/ark:/67531/metadc312201/"><img alt="[Photograph 2012.201.B0144.0091]" title="[Photograph 2012.201.B0144.0091]" src="https://gateway.okhistory.org/ark:/67531/metadc312201/thumbnail/"/></a></p><p>Photograph used for a story in the Oklahoma Times newspaper. Caption: "Judson Corn Kisses the bride."</p>