UNT Libraries Government Documents Department - 182,997 Matching Results

Search Results

open access

Conceptual Design of a 300-Mwe Paste-Fueled Fast Breeder Power Reactor

Description: "This report describes the conceptual design of 300 Mwe fast breeder reactor power plant that utilizes a paste-fuel system consisting of small, spherical particles settled in sodium" (p. 7). It includes a discussion of the paste-fuel system, the design of the core and blanket structure with analysis, a description of the fuel-handling system, processes for fabricating and processing the fuel, and schematics.
Date: October 1961
Creator: Blessing, W. G.; Bowers, S. D.; Hennig, R. J.; Huebotter, P. R.; Jens, W. H.; Kovacic, E. C. et al.
open access

Economic Study of the San Rafael River Desert Mining District Emery and Grand Counties, Utah

Description: Report documenting a geologic study of the San Rafael River Desert Mining District, including background describing the stratigraphy and geologic history, and the economic geology study containing more extensive descriptions of the area's mineralogy and uranium ores, including a description of mining and impacts.
Date: March 1957
Creator: Young, Robert G. (Robert Glen), 1923-2011; Million, I. & Hausen, Donald M.
Location: None
open access

Geothermal R and D Project report for October 1, 1975--December 30, 1975

Description: The Idaho National Engineering Laboratory (INEL) Geothermal Research and Development Project is conducting two major geothermal development efforts: 1) a project aimed at medium temperature (approximately 300/sup 0/F) utilization to produce electricity with supplemental direct thermal use of the energy; and 2) a low temperature (approximately 170/sup 0/F) space heating project. The first effort has progressed in the field to the successful drilling of two deep geothermal wells providing flows o… more
Date: April 1, 1976
open access

Application of pulsed electron beam vaporization to studies of UO/sub 2/. [LMFBR]

Description: A method for determining the pressure versus internal energy coordinates of the liquid-vapor saturation curve is applied to the study of UO/sub 2/. The experimental details and results of an initial series of tests are described. A comparison of the measurement results to models of the UO/sub 2/ equation of state illustrates the role of the heat capacity in describing the P--E characteristics of the state surface. A discussion of the available heat capacity information suggests that additional … more
Date: June 1, 1977
Creator: Benson, D. A.
open access

Phase 0: goal study for the technical and economic evaluation of the Compound Parabolic Concentrator (CPC) concept applied to solar thermal and photovoltaic collectors. Final report

Description: This report presents the results of a quick, six-week technical and economic evaluation of the compound parabolic concentrator (CPC) solar collector. The purpose of this effort was to provide an initial phase of a goals study that is directed toward recommending relative priorities for development of the compound parabolic concentrator concept. The findings of this study are of a very preliminary nature. Conclusions based on study findings at this depth should be considered preliminary and subj… more
Date: June 1, 1975
open access

Sensitivity of the reactor safety study consequences model to mixing heights

Description: The sensitivity to mixing height values of the consequence model used in the Reactor Safety Study has been investigated. Increasing mixing height values by a factor of 2 or decreasing by factors of 2, 5, or 10 had negligible effects on early-fatality predictions. Plume penetration of a low-lying inversion layer substantially decreases early-fatality predictions. Therefore, consequence model predictions are insensitive to mixing height values and conservative with respect to plume penetration of… more
Date: January 1, 1977
Creator: Sprung, J. L. & Church, H. W.
open access

Dynamic Isotope Power System: technology verification phase, program plan, 1 October 1978

Description: The technology verification phase program plan of the Dynamic Isotope Power System (DIPS) project is presented. DIPS is a project to develop a 0.5 to 2.0 kW power system for spacecraft using an isotope heat source and a closed-cycle Rankine power-system with an organic working fluid. The technology verification phase's purposes are to increase the system efficiency to over 18%, to demonstrate system reliability, and to provide an estimate for flight test scheduling. Progress toward these goals … more
Date: January 15, 1979
open access

DENSJT: statistical shell-model level density computer code description and user's manual. [In FORTRAN for CDC Cyber-70 computer]

Description: The FORTRAN code DENSJT described here is constructed to calculate the appropriate moments and dimensions needed in describing the Gaussian level density for fixed values of the total angular momentum (J) and isobaric spin (T = T/sub 0/). The input for this code is the same as in the usual shell-model codes, namely, the single-particle orbital properties and the antisymmetric two-body matrix elements. To calculate the moments for fixed values of the angular momentum (J) a method described by Gi… more
Date: July 1, 1976
Creator: Dalton, B.
open access

Photoelectron spectroscopy and Auger electron spectroscopy of solids and surfaces

Description: The use of photoelectron spectroscopy, primarily x-ray photoelectron spectroscopy, to obtain information on the electronic structure of a wide variety of solids (especially the bulk electronic structure of solids) is covered. Both valence band and core-level spectra, as well as a few cases of photon excited Auger electron spectroscopy, are employed in the investigations to derive information on N(E). The effect of several modulations inherent in the measured I(E)'s, such as final state band str… more
Date: January 1, 1976
Creator: Kowalczyk, S. P.
open access

Geothermal resources: exploration and exploitation. A bibliography

Description: This comprehensive bibliography contains 5476 citations of foreign and domestic research reports, journal articles, patents, conference proceedings, and books concerned with the exploration and exploitation of geothermal resources. The coverage dates back as far as useful references could be obtained and extends through June 1976. References are arranged in broad subject categories and are made up of complete bibliographic citations. These are followed by a listing of subject descriptors used t… more
Date: July 1, 1976
open access

Formation and study of exciplex systems: a low-pressure approach. Quarterly progress report No. 2, March 1, 1976--May 31, 1976

Description: A system is being developed for forming and studying excimers from the van der Waals ground states of gases. Status of the apparatus is reported. Calculations were made for concentration of dimers in cluster beams of noble gas mixtures. An experiment using a tuned laser to study the resonant absorption of excimers is proposed. (DLC)
Date: January 1, 1976
Creator: Sanzone, G.
open access

Advanced NMR-based techniques for pore structure analysis of coal

Description: One of the main problems in coal utilization is the inability to properly characterize its complex pore structure. Coals typically have micro/ultra-micro pores but they also exhibit meso and macroporosity. We believe that measurement of the NMR parameters of various gas phase and adsorbed phase NMR active probes can provide the resolution to this problem. We will investigate the dependence of the common NMR parameters such as chemical shifts and relaxation times of several different nuclei and … more
Date: January 1, 1992
Creator: Smith, D. M.
Back to Top of Screen