UNT Libraries Government Documents Department - 194 Matching Results

Search Results

Results: 1 - 24 next
open access

Market forces alone will not provide timely solutions to our problems in transportation

Description: The nation's transportation system faces problems on both sides of the supply-demand equation. Analysis of these problems has resulted in identification of two broad transportation energy conservation program areas: (1) more-efficient and environmentally acceptable heat engine systems are needed; they must be optimized for available fuels and eventually alternate fuels; and (2) alternate propulsion systems such as electric or hybrid vehicles are also required. A difficulty arises in that these … more
Date: July 29, 1976
Creator: Anderson, C. J. & O'Connell, L. G.
Item Type: Refine your search to only Report
open access

Geothermal energy: the resource and the environment

Description: A general overview of geothermal energy is presented. The current usage, geological origin, and environmental effects of geothermal development are summarized with emphasis on the numerous facets of the resource that may be singled out by interested individuals for further study. The conclusion is made that total geothermal development will be but a small percentage of the U.S. energy requirement, but that geothermal energy is and will be regionally significant as an energy resource.
Date: September 29, 1978
Creator: Arnold, H.G.
Item Type: Refine your search to only Article
open access

Janus Neodymium Glass Laser Operations Manual

Description: A manual, prepared to guide personnel in operating and maintaining the Janus glass laser system, is presented. System components are described in detail. Step-by-step procedures are presented for firing the laser and for performing routine maintenance and calibration procedures.
Date: September 29, 1978
Creator: Auerbach, J. M.; Holmes, N. C. & Trainor, R. J.
Item Type: Refine your search to only Report
open access

Overview of the geothermal energy development program at the Lawrence Livermore Laboratory

Description: The program consists generally of development of advanced conversion systems, with strong emphasis on a systems approach to find solutions of the problems of scale formation, corrosion/erosion of materials, spent brine disposal and solids handling, and development of reliable, efficient energy conversion systems with strong emphasis on development of the total flow concept. The status of the various parts of this program is reviewed briefly. (MHR)
Date: April 29, 1977
Creator: Austin, A. L.
Item Type: Refine your search to only Report
open access

Samanid ceramics and neutron activation analysis

Description: Glazed pottery known as ''Afrasiyab'' and ''Nishapur'' wares (early Islamic ceramics) are generally attributed to the Samanid dynasty (819-1005). The clay composition of Samanid wares and discarded kiln items found in situ were analyzed by NAA and the elemental composition compared with that of other sherds. 7 figures, 1 table. (DLC)
Date: August 29, 1977
Creator: Azarpay, G.; Frierman, J.D. & Asaro, F.
Item Type: Refine your search to only Article
open access

Modeling study of vibrational photochemical isotope enrichment. [HBr + Cl/sub 2/; HCl + Br/sub 2/]

Description: Chemical kinetic modeling studies of vibrational-photochemical isotope enrichment have been performed on two systems: Model (I), H/sup 79/Br(H/sup 81/Br) + Cl/sub 2/ and, Model (II), H/sup 37/Cl(H/sup 35/Cl) + Br. Pulsed laser excitation was modeled to the first excited vibrational level of H/sup 79/Br in Model I and the first and second excited vibrational levels of both HCl isotopes in Model II. These are prototype systems of exoergic (Model I) and endoergic (Model II) reactions. The effects … more
Date: September 29, 1978
Creator: Badcock, C.C.; Hwang, W.C. & Kalsch, J.F.
Item Type: Refine your search to only Report
open access

Lawrence Livermore Laboratory heavy ion fusion program

Description: In the large fusion program at Livermore we are actively doing research in most areas of inertial confinement fusion. The areas in which we are funded for research specific to heavy ion fusion are: (1) target design; (2) energy conversion chamber design and (3) ion beam propagation in the combustion chamber. There are two main thrusts to the target design effort: (1) development of targets which are optimally suited to heavy ion fusion power production and (2) fundamental studies of the beam-ta… more
Date: December 29, 1978
Creator: Bangerter, R. O.; Lee, E. P.; Monsler, M. J. & Yu, S. S.
Item Type: Refine your search to only Report
open access

Economic model of pipeline transportation systems

Description: The objective of the work reported here was to develop a model which could be used to assess the economic effects of energy-conservative technological innovations upon the pipeline industry. The model is a dynamic simulator which accepts inputs of two classes: the physical description (design parameters, fluid properties, and financial structures) of the system to be studied, and the postulated market (throughput and price) projection. The model consists of time-independent submodels: the fluid… more
Date: July 29, 1977
Creator: Banks, W. F.
Item Type: Refine your search to only Report
open access

Extension of UCRL-50936 (13 case studies) as requested by PNE, USAEC

Description: This report contains a reassessment of the Kra Canal Project. This latest assessment differs from the original study in that: Thirty- four salvos with a total yield of about 170 MT were assumed; `Acceptable` firing days were selected from actual meteorological data when the winds at all levels up to the expected debris cloud top blew toward the west, +/- 30 degrees; and the lead in the devices was assumed to be from monazite sand. The doses are considerably less than those estimated in the earl… more
Date: January 29, 1973
Creator: Batzel, R. E.
Item Type: Refine your search to only Report
open access

Absorption corrections for x-ray fluorescence analysis of environmental samples

Description: The discovery of a very simple and useful relationship between the absorption coefficient of a particular element and the ratio of incoherent to coherent scattering by the sample containing the element is discussed. By measuring the absorption coefficients for a few elements in a few samples, absorption coefficients for many elements in an entire set of similar samples can be obtained. (auth)
Date: August 29, 1975
Creator: Bazan, F. & Bonner, N. A.
Item Type: Refine your search to only Article
open access

Mechanism of Excretion of a Bacterial Proteinase: Factors Controlling Accumulation of the Extracellular Proteinase of a Sarcina Strain (Coccus P)

Description: It has been known that the extracellular proteinase of Coccus P is found only in cultures grown in the presence of Ca{sup 2+}. It is now shown that this cation is required neither for synthesis, excretion, or activation of a zymogen nor as a prosthetic factor necessary for enzymatic activity. The only function of Ca{sup 2+} is to stabilize the active structure of the enzyme molecule, presumably by substituting for absence of S-S bridges. In the absence of Ca{sup 2+} , the excreted proteinase un… more
Date: June 29, 1970
Creator: Bissell, Mina J.; Tosi, Roberto & Gorini, Luigi
Item Type: Refine your search to only Article
open access

Evaluation of selected chemical processes for production of low-cost silicon (Phase II). Silicon Material Task, Low-Cost Silicon Solar Array Project. Fifth--sixth quarterly progress report, October 1, 1976--March 31, 1977. [Zinc reduction of silicon tetrachloride in fluidized bed]

Description: The results of experimental work and economic analyses carried out during the first 12 months of this contract (Phase I) have led to Battelle's concentration on development of the zinc reduction of silicon tetrachloride on seed particles in a fluidized bed. A second year program (Phase II) has been initiated which consists of the design of a 25 MT/year experimental facility and supporting experiment effort. During this quarter, the effort in the plant design portion of the program has been devo… more
Date: April 29, 1977
Creator: Blocher, J. M. Jr.; Browning, M. F.; Wilson, W. J. & Carmichael, D. C.
Item Type: Refine your search to only Report
open access

Concurrent studies of enhanced heat transfer and materials for ocean thermal exchangers. Progress report

Description: Aluminum alloys 1100, 3003, 5052, and 6063 were examined for their compatibility with the proposed working fluids for Ocean Thermal Energy Conversion (OTEC), anhydrous ammonia, Freon 22 and propane, and mixtures of these with sea water. Such mixtures would occur if leaks develop in evaporator or condenser heat exchangers. These aluminum alloys are compatible with the anhydrous working fluids. In ammonia-sea water solutions only limited general corrosion is found in 0 to 30 percent ammonia, no c… more
Date: October 29, 1976
Creator: Bonewitz, R. A.
Item Type: Refine your search to only Report
open access

Survey of Piledriver results and preliminary interpretation of three postshot cores in and near the cavity

Description: A summary of measured data collected by numerous agencies cooperating in the Piledriver event, is presented together with calculations based on empirical relations deduced from past events in comparable media. Of 9 relations that have been proposed to predict cavity radius, 5 result in radii accurate to <3.5%. The remainder are off by about 10 to 18%. Three postshot recovered cores (U-15.01 PS-1, -2, -3) were examined on a gross scale prior to extensive detailed sampling for laboratory tests… more
Date: April 29, 1970
Creator: Borg, I Y
Item Type: Refine your search to only Report
open access

Tectogenesis of the rocks surrounding the Winnsboro intrusive complex and reconnaissance and petrography of the Pageland pluton; South Carolina Geothermal Program Final Report

Description: Major post-tectonic plutons of the easternmost Piedmont in the southern Appalachians have been of primary interest because of their high radiogenic heat production. Such heat production comes from a linear map trend including the Winnsboro, Liberty Hill, Pageland, and Lilesville plutons which parallel the proposed eastern Piedmont Fault system of Hatcher and others (1977). This study, in examining regional versus contact metamorphism and crosscutting relationships between the Winnsboro and Page… more
Date: September 29, 1978
Creator: Bourland, W.C. & Farrar, S.S.
Item Type: Refine your search to only Report
open access

Environmental {sup 129}I Measurements

Description: Environmental levels of {sup 129}I and natural {sup 127}I have been measured by neutron activation analysis .on samples from throughout the United States at locations near and remote from release points . Highest {sup 129}I concentrations were observed near nuclear fuel reprocessing facilities. Levels of {sup 129}I above natural iodine background were observed at all locations studied. The sample data establishes baseline levels of environmental {sup 129}I for the expanding nuclear industry.
Date: July 29, 1974
Creator: Brauer, F. P.
Item Type: Refine your search to only Report
Back to Top of Screen