Resource Type
Serial/Series Title
Country
States
Decade
Year
Month
182,997 Matching Results
Results open in a new window/tab.
Results:
1 - 24 of
182,997
next
Conceptual Design of a 300-Mwe Paste-Fueled Fast Breeder Power Reactor
"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.
System:
The UNT Digital Library
In-Situ Amelioration of Acid Mine Drainage Problems: Final Report
Final report
Date:
May 1998
Creator:
Brown, Terry H.
System:
The UNT Digital Library
Conditioning and Hydration Reactions Associated With Clean Coal Technology Ash Disposal/Hydration: Final Report
Final report
Date:
June 1998
Creator:
Bland, Alan E.
System:
The UNT Digital Library
Miscible/Immiscible Gas Injection Processes: Final Report
Final report
Date:
March 1998
Creator:
Fahy, L. J.; Mones, C. G.; Johnson, L. A., Jr. & Carlson, F. M.
System:
The UNT Digital Library
Evaluation of Alternate Free Radical Initiators for Heavy Oil/Plastics Co-Processing: Final Report
Final report
Date:
April 1998
Creator:
Guffey, F. D. & Barbour, F. A.
System:
The UNT Digital Library
Development of a Portable Data Acquisition System. Part 1: Development of a Portable Data Acquisition System
Final report
Date:
April 1998
Creator:
Barbour, F. A.; Turner, T. F. & Carlson, F. M.
System:
The UNT Digital Library
Haz-Flote: Ex-Situ Decontamination of Materials
Final report
Date:
April 1998
Creator:
Brown, Terry H. & Bland, Alan E.
System:
The UNT Digital Library
The SYNAG Process: Coal Combustion Ash Management Option
Final report
Date:
June 1998
Creator:
Bland, Alan E.
System:
The UNT Digital Library
Process Support and Development for Compcoal: Final Report
Final report
Date:
March 1998
Creator:
Merriam, Norman
System:
The UNT Digital Library
COMPCOAL: A Profitable Process for Production of a Stable High-Btu Fuel From Powder River Basin Coal. Final Report
Final report
Date:
April 1998
Creator:
Merriam, Norman W. & Turner, T. F.
System:
The UNT Digital Library
Development of an On-Line Alkali Monitoring Probe: Final Report
Final report
Date:
April 1998
Creator:
Sethi, Vijay
System:
The UNT Digital Library
Bench-Scale Testing and Verification of Pyrolysis Concept for Remediation of Tank Bottoms: Final Report
Final report
Date:
April 1998
Creator:
Satchwell, Robert
System:
The UNT Digital Library
Economic Study of the San Rafael River Desert Mining District Emery and Grand Counties, Utah
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.
System:
The UNT Digital Library
Geothermal R and D Project report for October 1, 1975--December 30, 1975
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 of the desired temperature in the Raft River Valley of south central Idaho. The second program involves the heating of government buildings and a university campus at Boise, Idaho. This report covers the period October 1, to December 30, 1975.
Date:
April 1, 1976
Creator:
unknown
System:
The UNT Digital Library
Application of pulsed electron beam vaporization to studies of UO/sub 2/. [LMFBR]
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 modeling and measurements of the heat capacity may be needed to give a complete temperature and energy dependent state surface description. Because of these modeling uncertainties, a method of thermodynamically describing the P(V, E) state surface entirely through the use of dynamic vapor measurements is given. Such a model satisfies transient thermomechanical analysis requirements. Next the effect of the state surface on one type of core disruptive reactor analysis is examined. And finally, the property determinations and models for UO/sub 2/ are reviewed with requirements for future work being outlined.
Date:
June 1, 1977
Creator:
Benson, D. A.
System:
The UNT Digital Library
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
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 subject to revision and review in later phases.
Date:
June 1, 1975
Creator:
unknown
System:
The UNT Digital Library
Sensitivity of the reactor safety study consequences model to mixing heights
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 inversion layers, a process not currently included in the model.
Date:
January 1, 1977
Creator:
Sprung, J. L. & Church, H. W.
System:
The UNT Digital Library
Dynamic Isotope Power System: technology verification phase, program plan, 1 October 1978
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 is reported. (LCL)
Date:
January 15, 1979
Creator:
unknown
System:
The UNT Digital Library
DENSJT: statistical shell-model level density computer code description and user's manual. [In FORTRAN for CDC Cyber-70 computer]
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 Ginocchio is used. All of the ''basic inputs'' needed in the reduction formula were derived without any restrictions on the orbitals. The formulas used in DENSJT are described, and the basic inputs are listed in tables. A block flow chart showing the general structure and the specific function of each subroutine is included. All necessary information for the input and output of this code is described. A calculation involving 3 orbitals in the s--d shell took 1 second on a CDC Cyber-70 computer. (RWR)
Date:
July 1, 1976
Creator:
Dalton, B.
System:
The UNT Digital Library
Photoelectron spectroscopy and Auger electron spectroscopy of solids and surfaces
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 structure, cross section, and relaxation, is discussed. Examples of many-electron interactions in PES are given. Some experimental aspects of PES and AES studies are given with emphasis on sample preparation techniques. Multiple splitting of core levels is examined using the Mn levels in MnF/sub 2/ as a detailed case study. Core level splittings in transition metals, rare earth metals, transition metal halides and several alloys are also reported. The application of PES to the study of the chemical bond in some crystalline semiconductors and insulators, A/sup N/B/sup 8-N/ and A/sup N/B/sup 10-N/ compounds is treated, and a spectroscopic scale of ionicity for these compounds is developed from the measured ''s-band'' splitting in the valence band density of states. (GHT)
Date:
January 1, 1976
Creator:
Kowalczyk, S. P.
System:
The UNT Digital Library
Nuclear Chemistry Research. Annual progress report, 1 January--31 December 1975. [Summaries of research activities at Pittsburgh University]
Research is summarized on heavy ion fusion reactions, equilibrium charge-state distributions of heavy ions, the statistics of low level counting, and strontium and radiostrontium in marine mollusc shells. A list of publications is included. (JFP)
Date:
January 1, 1976
Creator:
Wolke, R L
System:
The UNT Digital Library
Geothermal resources: exploration and exploitation. A bibliography
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 to describe the subject content of each reference. Four indexes are included: Corporate, Personal Author, Subject, and Report Number. Also included is a list of journals from which articles were selected. (LBS)
Date:
July 1, 1976
Creator:
unknown
System:
The UNT Digital Library
Formation and study of exciplex systems: a low-pressure approach. Quarterly progress report No. 2, March 1, 1976--May 31, 1976
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.
System:
The UNT Digital Library
Advanced NMR-based techniques for pore structure analysis of coal
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 compounds on the pore structure of model microporous solids, carbons, and coals. In particular, we will study the interaction between several small molecules ({sup 129}Xe, {sup 3}He, {sup 2}H{sub 2}, {sup 14}N{sub 2}, {sup 14}NH{sub 3}, {sup 15}N{sub 2}, {sup 13}CH{sub 4}, {sup 13}CO{sub 2}) and the pore surfaces in coals. These molecules have been selected for their chemical and physical properties. A special NMR probe will be constructed which will allow the concurrent measurement of NMR properties and adsorption uptake at a variety of temperatures. All samples will be subjected to a suite of conventional'' pore structure analyses. These include nitrogen adsorption at 77 K with BET analysis, C0{sub 2} and CH{sub 4} adsorption at 273 K with D-R (Dubinin-Radushkevich) analysis, helium …
Date:
January 1, 1992
Creator:
Smith, D. M.
System:
The UNT Digital Library