Search Results

open access

Technology assessment of geothermal energy resource development

Description: Geothermal state-of-the-art is described including geothermal resources, technology, and institutional, legal, and environmental considerations. The way geothermal energy may evolve in the United States is described; a series of plausible scenarios and the factors and policies which control the rate of growth of the resource are presented. The potential primary and higher order impacts of geothermal energy are explored, including effects on the economy and society, cities and dwellings, environmental, and on institutions affected by it. Numerical and methodological detail is included in appendices. (MHR)
Date: April 15, 1975
Partner: UNT Libraries Government Documents Department
captions transcript

[News Clip: Ft Worth Transit]

Description: Video footage from the WBAP-TV station in Fort Worth, Texas to accompany a story about the Fort Worth City Council granting the Fort Worth Transit Company part of its request for fare adjustments. This story includes footage of passengers waiting for and riding the bus.
Date: June 15, 1964
Duration: 1 minute 07 seconds
Creator: WBAP-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: Rail strike]

Description: Video footage from the WBAP-TV station in Fort Worth, Texas to accompany a story about a strike against six railroads by the Brotherhood of Railroad Trainmen
Date: June 15, 1964
Duration: 3 minutes 07 seconds
Creator: WBAP-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: Goldie]

Description: Video footage from the WBAP-TV station in Fort Worth, Texas to accompany a story about Republican presidential candidate Barry Goldwater's arrival at Dallas Love Field for the state Republican Convention. This story includes footage of Goldwater with news reporters and speaking at a campaign fundraiser at the Statler-Hilton hotel.
Date: June 15, 1964
Duration: 2 minutes 42 seconds
Creator: WBAP-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: General Motors]

Description: Video footage from the WBAP-TV station in Fort Worth, Texas to accompany a story about a luncheon celebrating the 10th anniversary of the General Motors plant in Arlington. This story includes footage of Arlington Mayor Tom Vandergriff and a tour of the plant.
Date: June 15, 1964
Duration: 1 minute 42 seconds
Creator: WBAP-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: Judge]

Description: Video footage from the WBAP-TV station in Fort Worth, Texas to accompany a story about a gathering of Dallas attorneys and bondsmen in support of Judge Jim Guthrie after Guthrie was criticized by the Dallas Crime Commission.
Date: June 15, 1964
Duration: 1 minute 24 seconds
Creator: WBAP-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: Negro murder trial]

Description: Video footage from the WBAP-TV station in Fort Worth, Texas to accompany a story about the trial of Will Travis King for the murder of Thelma Thompson.
Date: June 15, 1964
Duration: 1 minute 25 seconds
Creator: WBAP-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: Mobilgas air flight]

Description: Video footage from the WBAP-TV station in Fort Worth, Texas to accompany a story about the Mobil Mileage Flight, a publicity stunt to prove that you can get as much mileage out of a light plane as you can from an automobile. In one of the airplanes are movie and television stars Kathy Nolan and Roger Smith.
Date: June 15, 1964
Duration: 1 minute 16 seconds
Creator: WBAP-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections
open access

Pre-equilibrium decay processes in energetic heavy ion reactions

Description: The Boltzmann master equation (BME) is defined for application to precompound decay in heavy ion reactions in the 10 100 MeV/nucleon regime. Predicted neutron spectra are compared with measured results for central collisions of /sup 20/Ne and /sup 12/C with /sup 165/Ho target nuclei. Comparisons are made with subthreshold ..pi../sup 0/ yields in heavy ion reactions between 35 and 84 MeV/nucleon, and with the ..pi../sup 0/ spectra. The BME is found to be an excellent tool for investigating these experimentally observed aspects of non-equilibrium heavy ion reactions. 18 refs., 8 figs.
Date: April 15, 1986
Creator: Blann, M.
Partner: UNT Libraries Government Documents Department
open access

Stress studies in EFG. Fourth quarterly progress report, April 1, 1983-June 30, 1983

Description: Stress distributions have been calculated for a creep law predicting a higher rate of plastic deformation than modeled in earlier studies. The expected reduction in stresses is obtained, although quantitative results are not yet available because of difficulties in obtaining convergent solutions. Improved schemes for calculating growth system temperature distributions are being evaluated in a new subtask started at MIT. Other work in temperature field modeling has examined the possibility of using horizontal temperature gradients to influence stress distributions in ribbon. The defect structure of 10 cm wide ribbon grown in the cartridge system has been examined. A new feature is identified from an examination of cross-sectional micrographs. It consists of high density dislocation bands extending through the ribbon thickness. A four-point bending apparatus has been constructed for high temperature (greater than or equal to 1000/sup 0/C) study of the creep response of silicon, and will be used to generate defects for comparison with as-grown defects in ribbon. Another subtask has been started in collaboration with the University of Illinois which will examine the feasibility of laser interferometric techniques for sheet residual stress distribution measurement. The mathematical formalism for calculating residual stress from changes in surface topology caused by an applied stress in a rectangular specimen has been developed, and the system for laser interferometric measurement to obtain surface topology data has been successfully tested on CZ silicon. Testing and calibration of different fiber optics temperature sensor configurations are underway.
Date: August 15, 1983
Partner: UNT Libraries Government Documents Department
open access

Integrating quality assurance and research and development

Description: Quality assurance programs cannot be transferred from one organization to another without attention to existing cultures and traditions. Introduction of quality assurance programs constitutes a significant change and represents a significant impact on the organizational structure and operational mode. Quality assurance professionals are change agents, but do not know how to be effective ones. Quality assurance as a body of knowledge and experience can only become accepted when its practitioners become familiar with their role as change agents. 8 references.
Date: February 15, 1985
Creator: Dronkers, J.J.
Partner: UNT Libraries Government Documents Department
open access

Laboratory directed research and development

Description: The purposes of Argonne's Laboratory Directed Research and Development (LDRD) Program are to encourage the development of novel concepts, enhance the Laboratory's R D capabilities, and further the development of its strategic initiatives. Among the aims of the projects supported by the Program are establishment of engineering proof-of-principle''; development of an instrumental prototype, method, or system; or discovery in fundamental science. Several of these project are closely associated with major strategic thrusts of the Laboratory as described in Argonne's Five Year Institutional Plan, although the scientific implications of the achieved results extend well beyond Laboratory plans and objectives. The projects supported by the Program are distributed across the major programmatic areas at Argonne. Areas of emphasis are (1) advanced accelerator and detector technology, (2) x-ray techniques in biological and physical sciences, (3) advanced reactor technology, (4) materials science, computational science, biological sciences and environmental sciences. Individual reports summarizing the purpose, approach, and results of projects are presented.
Date: November 15, 1991
Partner: UNT Libraries Government Documents Department
open access

Toxicology and metabolism of nickel compounds. Progress report, December 1, 1978-November 30, 1979. [Hamsters and rats]

Description: The toxicology and metabolism of nickel compounds were investigated in rats and hamsters. The new knowledge includes; demonstration that nickel carbonyl is teratogenic for hamsters; elucidation of physiological factors which influence ..cap alpha..Ni/sub 3/S/sub 2/-induced erythrocytosis in rats; development of a sensitive assay for heme oxygenase activity in renal microsomes for use in studies of renal effects of nickel compounds; demonstration that administration of Ni(CO)/sub 4/ to rats inhibits incorporation of /sup 3/H-thymidine into DNA during hepatic regeneration; demonstration that clones of Syrian hamster fetal cells which have been transformed by in vitro exposure to ..cap alpha..Ni/sub 3/S/sub 2/ consistently cause sarcomas following sc injection into nude mice; demonstration that nickel carbonyl-cyclopentadiene dimer induces rhabdomyosarcomas following im injection in rats; observation of differences in carcinogenic activities of several insoluble nickel compounds; discovery that intraocular injection of ..cap alpha..Ni/sub 3/S/sub 2/ induces amelanotic melanomas in rats; and refinement of analytical methods for nickel in biological materials.
Date: August 15, 1979
Creator: Sunderman, F.W. Jr.
Partner: UNT Libraries Government Documents Department
open access

Characterization and analysis of Devonian shales as related to release of gaseous hydrocarbons. Well N-1 Henderson County, Illinois and Well N-2 Tazewell County, Illinois

Description: Core sampling, hydrocarbon gas contents, chemical and physical characterization data are presented. Core samples from these two Illinois basin wells were obtained in July and August 1977. Thirty-one and twenty-three samples were obtained from N-1 and N-2 wells, respectively, amounting to total core length of 940 feet. Shales from Illinois basin wells (such as N-1 and N-2) are characterized by very low hydrocarbon gas contents. In fact, the N-1 and N-2 wells exhibited the lowest hydrocarbon gas contents among all the wells thus far analyzed. The chemical analysis of these shales also indicates rather low carbon and hydrogen contents, supporting the hydrocarbon gas release data. One significant aspect of the physical characterization data is high porosity associated with low bulk densities. N-1 and N-2 shales exhibit the highest pore volume of any shales from either basin (Appliachian and Illinois). Lithology of these shales does not significantly differ from those of other locations. These shales exhibit relatively low carbonates.
Date: June 15, 1979
Creator: Kalyoncu, R. S.; Boyer, J. P. & Snyder, M. J.
Partner: UNT Libraries Government Documents Department
open access

Sources of ozone and sulfate in northeastern United States. Annual progress report. [Determination of anthropogenic sources from measurements at Whiteface Mountain, New York]

Description: Measurements of daily concentrations of /sup 7/Be, /sup 32/P, and ozone at Whiteface Mountain, New York are reported for June, July, and August of 1977 and 1978. Episodes of high daily ozone are observed to coincide with peak /sup 7/Be and /sup 32/P concentrations. Since these radionuclides and ozone are produced in the stratosphere, their simultaneous increase is taken to indicate the arrival of stratospheric air. However, ozone is also produced at ground level by photochemical reactions. Therefore, only when the ground level production of ozone is small can a comparison of cosmogenic nuclides and ozone quantitatively yield stratospheric ozone component. On June 15, 1977 at least 80% of the 50 ppBv (daily average) ozone observed originated in the stratosphere. Our data indicate substantial stratospheric contributions on numerous other occasions. The /sup 7/Be and /sup 32/P concentration measurements can be used to directly determine the accompanying stratospheric ozone if (1) the /sup 7/Be (and/or /sup 32/P)O/sub 3/ mixing ratios in the upper atmosphere, and (2) mean residence time of O/sub 3/ are known. Since October 1977, the /sup 7/Be concentrations in aerosol samples collected at 10 to 12 km varied from less than or equal to 0.1 to 5.8 pCi/kg air, whereas ozone concentrations ranged between 27 and 527 ppBv. If the mean residence times and /sup 7/Be/O/sub 3/ ratios are known, ground level /sup 7/Be concentration will yield the stratosphericozone concentration. Estimated dialy stratospheric ozone components vary from 10 to 40 ppBv. Measurements of total suspended particulates (TSP), trace elements, and sulfates were also carried out. Since these are produced only at ground level, their daily variations indicate the intensity of pollutant transport from urban/industrial centers to rural Whiteface Mountain. Comparison of the elevated episodic concentrations with surface air mass trajectories show that the polluted air masses originated in …
Date: November 15, 1978
Creator: Husain, L.; Dutkiewicz, V.; Coffey, P.E. & Mohnen, V.A.
Partner: UNT Libraries Government Documents Department
open access

Pilot aerial infrared roof top survey. Final report

Description: A summary is presented of a pilot aerial infrared roof top study conducted by the Minnesota Energy Agency. Infrared surveys of 27 Minnesota cities were conducted during the fall and winter of the 1976-1977 heating season. In addition, conventional daytime color photographs were taken of several cities. Film processing was done by the Environmental Protection Agency. The University of Minnesota conducted ground tests to verify the aerial infrared imagery. Thermograph dissemination centers were established in each city and training seminars and materials were prepared and delivered to dissemination center staff. A survey of homeowners who viewed their thermograph at a dissemination center were used to determine the energy savings resulting from the program. An Aerial Infrared Program Users Manual was prepared by the Energy Agency and the Remote Sensing Institute of Brookings, South Dakota.
Date: October 15, 1979
Partner: UNT Libraries Government Documents Department
open access

Experimental formation of chalk from calcareous ooze. Technical progress report

Description: Samples of calcareous ooze collected from the tropical and equatorial Atlantic Ocean were subjected to hydrothermal alteration in order to simulate the diagenesis of chalk. Changes in mineralogy and morphology of enclosed microfossils were measured. (ACR)
Date: February 15, 1981
Creator: Seyfried, W.E. & Johnson, T.C.
Partner: UNT Libraries Government Documents Department
open access

Towards unified performance measures for evaluating nuclear safeguard systems: mathematical foundations and formal comparison of existing models

Description: An important step in the analysis of large-scale systems is the development of economical and meaningful measures of system performance. In the literature on analysis of nuclear safeguard systems, many performance measures have been advanced, but their interrelationships and their relevance to overall system objectives have not received attention commensurate with the effort spent in developing detailed safeguard models. The work reported here is an attempt to improve the development and evaluation of performance measures for nuclear safeguard systems. This work falls into three main areas. First, we develop a new framework which provides an initial basis for defining and structuring performance measures. To demonstrate that this framework allows a clear understanding of the purposes of nuclear safeguard systems, we employ it to state various safeguard questions clearly and concisely. The framework reflects the rough subsystem structure of safeguard systems - the detection and response subsystems - and formally accommodates various safeguard models. We especially emphasize two of these models which are under development at Lawrence Livermore Laboratory, the structured assessment approach (SAA) and the systems vulnerability assessment method (SVAM). Second, we examine some performance measures presently used in the nuclear safeguards area and in reliability theory in general. Some of these we accept and modify to obtain system performance measures that are an additive combination of subsystem performance measures, a very convenient form indeed. Others we reject as impractical and meaningless. Finally, we determine some common features between the SAA and SVAM models by formally comparing these models in our framework.
Date: May 15, 1979
Creator: Corynen, G.C.
Partner: UNT Libraries Government Documents Department
open access

Evaluation of selected chemical processes for production of low-cost silicon (Phase III). Fifteenth quarterly progress report, April 1-June 30, 1979

Description: Progress has been made during this quarter on the assembly of the Process Development Unit (PDU) consisting of four of the critical components of the 50 MT/year Experimental Process System Development Unit (EPSDU) for the production of granular semiconductor-grade silicon by the zinc vapor reduction of silicon tetrachloride in a fluidized bed of seed particles. The target operation date of October 1, 1979, still appears attainable. An experimental wetted-wall condenser, about 1/10 the size of the PDU/EPSDU design was operated to demonstrate that recirculated liquid zinc chloride can indeed be used to wash down the condensed by-product of the fluidized-bed reactor containing finely divided solid zinc and some silicon dust. The temperature distribution proved to be more critical than anticipated but the condenser now appears to be operable. Some improvement in condensation efficiency is desirable, however. Procedures were established for safe handling of SiCl/sub 4/ leaks and spills from the EPSDU and PDU. Preparations are being made to conduct zinc vaporization experiments in that portion of the PDU before operation of the entire PDU is initiated.
Date: August 15, 1979
Creator: Blocher, J.M. Jr. & Browning, M.F.
Partner: UNT Libraries Government Documents Department
open access

Predictions for nuclear properties along the r-process path

Description: The uniformity of different nuclear regions as a function of the number of valence protons and neutrons (counted from the nearest closed shell) has been exploited for the parameterization of calculations for nuclei far from stability within the IBA model. Predictions are given for low lying levels, E2 transition rates, and binding energies for nuclei in the r-process path in the A = 150 and A = 190 mass regions. 6 refs., 6 figs.
Date: October 15, 1987
Creator: Aprahamian, A.
Partner: UNT Libraries Government Documents Department
open access

Mathematical model of the Savannah River Site waste tank farm

Description: A mathematical model has been developed to simulate operation of the waste tank farm and the associated evaporator systems at the Savannah River Site. The model solves material balance equations to predict the volumes of liquid waste, salt, and sludge for all of the tanks within each of the evaporator systems. Additional logic is included to model the behavior of waste tanks not directly associated with the evaporators. Input parameters include the Material Management Plan forecast of canyon operations, specification of other waste sources for the evaporator systems, evaporator operating characteristics, and salt and sludge removal schedules. The model determines how the evaporators will operate, when waste transfers can be made, and waste accumulation rates. Output from the model includes waste tank contents, summaries of systems operations, and reports of space gain and the remaining capacity to store waste materials within the tank farm. Model simulations can be made to predict waste tank capacities on a daily basis for up to 20 years. The model is coded as a set of three computer programs designed to run on either IBM compatible or Apple Macintosh II personal computers.
Date: July 15, 1991
Creator: Smith, F. G. III
Partner: UNT Libraries Government Documents Department
open access

Emittance measurement in a magnetic field

Description: Emittance can be measured by intercepting an electron beam on a range thick plate and then observing the expansion of beamlets transmitted through small holes. The hole size is selected to minimize space charge effects. In the presence of a magnetic field the beamlets have a spiral trajectory and the usual field free formulation must be modified. To interpret emittance in the presence of a magnetic field an envelope equation is derived in the appropriate rotating frame. 1 ref.
Date: April 15, 1991
Creator: Boyd, J.K.
Partner: UNT Libraries Government Documents Department
Back to Top of Screen