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Influence of access hole parameters on neutron moisture probe readings

Description: Computing soil moisture content with a neutron probe requires use of a calibration curve that considers the thermal neutron capture cross section of the hole liner, as well as the hole diameter. The influence of steel, polyvinyl chloride, and aluminum casings that fit 0.051- to 0.102-m hole diameters was determined by comparison with neutron probe readings in uncased holes of corresponding diameters. Eccentricity of probe location was considered a potentially significant variable. The experimen… more
Date: October 1, 1979
Creator: Abeele, W.V.
Partner: UNT Libraries Government Documents Department
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Magnetic driving energy of the tearing mode

Description: The change in the magnetic energy density produced by a tearing mode is calculated exactly. The driving energy for the mode is found to come entirely from the region inside the tearing layer, although there is also a displacement of energy in the outer region which integrates to zero. The total change in magnetic energy is exactly equal to the change in a quadratic form related to a variational principle for the full resistive equations.
Date: October 1, 1979
Creator: Adler, E. A.; Kulsrud, R. M. & White, R. B.
Partner: UNT Libraries Government Documents Department
open access

Mass Balance Results for Pricetown I Underground Coal Gasification

Description: A mass balance model was applied to the Pricetown I test data. This model gave the values of various parameters such as water influx, percent devolatilization, percent gasification, amount of coal affected, thermal efficiency, etc., for the various phases of the test. Both hourly and daily values of the test data were used. At certain times, there was air loss to the coal seam or air gain from the coal seam as related to the underground reactor. Mass balances are modified accordingly. Realistic… more
Date: October 1, 1979
Creator: Agarwal, A. K.; Seabaugh, P. W. & Zielinski, R. E.
Partner: UNT Libraries Government Documents Department
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Direct determination of radiation damage profiles in the order-disorder alloys Ni/sub 4/Mo and Pt/sub 3/Co irradiated with 500 to 2500 eV Ne/sup +/ ions

Description: Radiation damage produced in the order-disorder alloys Ni/sub 4/Mo and Pt/sub 3/Co by low-energy (500-2500 eV) Ne/sup +/ ions has been observed directly, on an atomic scale, employing the field-ion microscope (FIM) technique. A new approach was developed to determine the radiation damage distribution in these alloys. In the case of the alloy Ni/sub 4/Mo the measurements were based on the contrast differences between the FIM images of an ordered alloy, which were completely regular, and a disord… more
Date: October 1, 1979
Creator: Aidelberg, J.
Partner: UNT Libraries Government Documents Department
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Energy savings by means of fuel cell electrodes in electro-chemical industries. Annual report for August 1, 1978-July 31, 1979

Description: The objectives of the subject program are: to evaluate experimentally, on a laboratory scale, energy and cost savings in electrowinning of zinc by substituting, for the conventional lead anode, a Prototech proprietary hydrogen anode operating on pure and impure feeds; to similarly evaluate experimentally, again on a laboratory scale, voltage, and thus energy savings in chlor-alkali membrane cells by substituting, for the conventional steel cathode, a Prototech proprietary air cathode; to consul… more
Date: October 31, 1979
Creator: Allen, R. J.; Juda, W.; Lindstrom, R. W. & Petrow, H. G.
Partner: UNT Libraries Government Documents Department
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Electrochemical photovoltaic cells. Project 65021 quarterly technical progress report, July 15-October 15, 1979

Description: During the second quarter of this program we have evaluated the photoelectrochemical performance of single-crystal MoSe/sub 2/ and GaAs, polycrystalline CdSe, and cells with RbAg/sub 4/I/sub 5/ solid electrolyte. MoSe/sub 2/ electrode exhibited very good photoresponse in electrolytes containing Br/sup -//Br/sub 2/ redox couple. The photopotential and photocurrent were larger in acid than in alkaline electrolyte. A power conversion efficiency of about 5% was achieved under 200 mW/cm/sup 2/ Xenon… more
Date: October 1, 1979
Creator: Ang, P.G.P. & Sammells, A.F.
Partner: UNT Libraries Government Documents Department
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Unavailability Modeling and Analysis of Redundant Safety Systems

Description: Analytical expressions have been developed to estimate the average unavailability of an m-out-of-n (m/n, 1 less than or equal to m less than or equal to n less than or equal to 4) standby safety system of a nuclear power plant. The expressions take into account contributions made by testing, repair, equipment failure, human error, and different testing schemes. A computer code, ICARUS, has been written to incorporate these analytical equations. The code is capable of calculating the average una… more
Date: October 1979
Creator: Argonne National Laboratory. Reactor Analysis and Safety Division.
Partner: UNT Libraries Government Documents Department
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Feasibility study for anaerobic digestion of agricultural crop residues. Final report

Description: This study provides cost estimates for the pretreatment/digestion of crop residues to fuel gas. Agricultural statistics indicate that the crop residues wheat straw, corn stover, and rice straw are available in sufficient quantity to provide meaningful supplies of gas. Engineering economic analyses were performed for digestion of sheat straw, corn stover, and rice straw for small farm, cooperative, and industrial scales. The results of the analyses indicate that the production of fuel gas from t… more
Date: October 1, 1979
Creator: Ashare, E.; Buivid, M. G. & Wilson, E. H.
Partner: UNT Libraries Government Documents Department
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Renewable Energy Sources for the World's Poor: A Review of Current International Development Assistance Programs

Description: Foreign assistance funding of the creation, testing, and use of renewable energy sources concerning worldwide efforts to provide energy for Third World development is examined. Donor agencies and developing nations give serious attention to technologies that have been considered exotic and marginal: small-scale hydroelectric generation, solar water heating and distillation, biomass conversion to methane gas and alcohol, wind power, photovoltaic-powered small-scale irrigation, and village-level … more
Date: October 1979
Creator: Ashworth, John H.
Partner: UNT Libraries Government Documents Department
open access

Stability of the mesh-cornered synthetic method of diffusion acceleration of the DOT-IV transport code

Description: Three methods for accelerating the discrete ordinates equations using variations of the synthetic method are examined. It is found that the use of difference equations written about the mesh corners, rather than a specific form of the equations, brings stability. These methods are compared with three other methods in test problems covering the stability domain of interest.
Date: October 1, 1979
Creator: Aull, J.
Partner: UNT Libraries Government Documents Department
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Manufacture of superconducting wire. Progress report, February 1-October 15, 1979

Description: This report is divided into three major sections. The first section covers aspects of the manufacturing technology with existing and potential processes, and the second deals with the analysis of flow and fracture and the derivation of criteria to prevent failure. In the first section, typical present day procedure to assemble a billet, extrude and draw it, with intermediate and final anneals, is described. Then an hypothetical production line with potential alternative processes along the enti… more
Date: October 1, 1979
Creator: Avitzur, B.; Chou, Y. T.; Talbert, S. & Wu, R.
Partner: UNT Libraries Government Documents Department
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Manufacture of superconducting wire. Progress report, February 1-October 15, 1979

Description: This report is divided into three major sections. The first section covers aspects of the manufacturing technology with existing and potential processes, and the second deals with the analysis of flow and fracture and the derivation of criteria to prevent failure. In the first section, typical present-day procedure to assemble a billet, extrude and draw it, with intermediate and final anneals, is described. Then an hypothetical production line with potential alternative processes along the enti… more
Date: October 1, 1979
Creator: Avitzur, B.; Chou, Y. T.; Talbert, S. & Wu, R.
Partner: UNT Libraries Government Documents Department
open access

Effective mass spectrometer. [History and accomplishments]

Description: The history and major accomplishments of the Effective Mass Spectrometer (EMS) are described. In the eight years since the EMS turned on, 21 experiments have been completed by groups from nine institutions in 32 months of operation. Over 400 million triggers have been recorded on magnetic tape, resulting in 29 journal publications to date. A list of experimental proposals for the EMS and a sampling of results are presented. 12 figures, 4 tables.
Date: October 12, 1979
Creator: Ayres, D.
Partner: UNT Libraries Government Documents Department
open access

Use of laser interferometer for position feedback

Description: Traditional methods for monitoring the position of machine-tool slides have utilized resolvers, encoders, Inductosyns, etc, that typically infer the position of the cutting tool and part by measuring a secondary characteristic such as the angle of a drive motor or lead screw. Some undesirable features of this technique arise from the lack of rigidity between the point of interest and the point of the measurement. Other disadvantages result from the resolution and accuracy associated with these … more
Date: October 1, 1979
Creator: Barkman, W.E.
Partner: UNT Libraries Government Documents Department
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1979 New Mexico legislative session: energy issues and legislation. [WIPP]

Description: This report is an account of the energy legislation and associated issues considered during the 1979 session of the 34th New Mexico Legislature. The session's major issue was the federal study of a proposed nuclear Waste Isolation Pilot Plant (WIPP) in New Mexico. A large proportion of time and effort was spent on resolving the state's formal position toward the federal project. However, other energy concerns were also significant even though they were neither as controversial nor as visible as… more
Date: October 1, 1979
Creator: Barsumian, L. & Vandevender, S.G.
Partner: UNT Libraries Government Documents Department
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Development, characterization and evaluation of materials for open cycle MHD. Quarterly report, June 1979

Description: The objectives of this program are to develop, test, characterize, and evaluate materials for open-cycle, coal-fired MHD power generators. The specific immediate goals emphasize electrode and insulator materials, including: (1) testing and evaluation of the enhanced effects of alkali seed on materials in a dc electric field; (2) development and testing of improved electrodes and insulators with controlled microstructures, compositions and properties; and (3) characterization and evaluation of m… more
Date: October 1, 1979
Creator: Bates, J.L. & Marchant, D.D.
Partner: UNT Libraries Government Documents Department
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Gamma measurements on spherical shells of /sup 239/Pu and /sup 238/U

Description: The gamma spectra from two /sup 239/Pu spherical shells and an identical /sup 238/U shell 67-mm o.d. and 2.2 mm thick were measured with NaI(Tl) and Ge(Li) detectors. The plutonium shells differed in the /sup 240/Pu content. The intrinsic gamma radiation at 2 m from the shells was 93.3 ..mu..rem/h (5.93% /sup 230/Pu); 67.3 ..mu..rem/h (2.65% /sup 240/Pu); and 0.69 ..mu..rem/h (tuballoy with 0.2% /sup 235/U). The NaI(T1) spectrum is given in photons/cm/sup 2/-s and in mrem/h for 10 keV energy bi… more
Date: October 1, 1979
Creator: Bendt, P. J. & Jurney, E. T.
Partner: UNT Libraries Government Documents Department
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Response of a quick acting valve for underground nuclear blast containment

Description: The motion of a large, sliding piston impelled by the action of an inert gas at high pressure is modeled mathematically by assuming that the working fluid behaves as an ideal gas and that a steady flow process prevails. It is found from numerical solutions of the governing equations that as the aperture, which connects the gas reservoir and receiver, is enlarged, a critical size is reached, beyond which the valve response remains essentially independent of any further increases in the aperture … more
Date: October 1, 1979
Creator: Bennett, M.D. & Curry, W.H.
Partner: UNT Libraries Government Documents Department
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Geologic and geochemical studies of the New Albany Group (Devonian black shale) in Illinois to evaluate its characteristics as a source of hydrocarbons. Quarterly progress report, July 1-September 30, 1979

Description: This project is a detailed analysis of the lithology, stratigraphy, and structure of the New Albany Group in Illinois to determine those characteristics of lithology, thickness, regional distribution, vertical and lateral variability, and deformation that are most relevant to the occurrence of hydrocarbons.
Date: October 9, 1979
Creator: Bergstrom, R.E. & Shimp, N.F.
Partner: UNT Libraries Government Documents Department
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Field reversed mirrors

Description: This review covers the various approaches that have utilized the reversed-field concept. Its possible use in a working reactor is discussed. (MOW)
Date: October 15, 1979
Creator: Berk, H.L.
Partner: UNT Libraries Government Documents Department
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Interim progress report on an investigation of energy transport in porous insulator systems

Description: An exploratory investigation of various air intrusion as well as other energy transport effects on porous insulator systems has been carried out at SUNY, Stony Brook. The results of the four-month investigation show quantitatively that there are a number of significant, commonly encountered, air intrusion situations which can substantially degrade the thermal performance of building thermal barriers and the conditioned spaces that they serve.
Date: October 1, 1979
Creator: Berlad, A. L.; Tutu, N.; Jaung, R. & Yeh, Y.-J.
Partner: UNT Libraries Government Documents Department
open access

Seismic evaluation of commercial plutonium fabrication plants in the United States

Description: This report is an overview of Lawrence Livermore National Laboratory's seismic assessment of six commercial plutonium fabrication plants licensed by the US Nuclear Regulatory Commission (NRC) before September 2, 1971. The seismic assessment generally has three parts: (1) documentation of the structural condition of each facility and its critical equipment; (2) characterization of the seismic hazard (i.e., determination of peak ground acceleration vs return period for each site); and (3) evaluat… more
Date: October 1, 1979
Creator: Bernreuter, D. L.; Coats, D. W.; Murray, R. C. & Tokarz, F. J.
Partner: UNT Libraries Government Documents Department
open access

Retrieval system for emplaced spent unreprocessed fuel (SURF) in salt bed depository: accident event analysis and mechanical failure probabilities. Final report

Description: This report provides support in developing an accident prediction event tree diagram, with an analysis of the baseline design concept for the retrieval of emplaced spent unreprocessed fuel (SURF) contained in a degraded Canister. The report contains an evaluation check list, accident logic diagrams, accident event tables, fault trees/event trees and discussions of failure probabilities for the following subsystems as potential contributors to a failure: (a) Canister extraction, including the co… more
Date: October 1, 1979
Creator: Bhaskaran, G. & McCleery, J.E.
Partner: UNT Libraries Government Documents Department
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FFTF purification system performance during fill and initial temperature ascension

Description: Design parameters of the sodium purification systems on the Fast Flux Test Facility are given. Sodium and argon cover gas impurity changes observed during initial sodium fill and initial reactor heatup to 800/sup 0/F are discussed. Sodium Purification System operation during these critical sodium impurity control periods is described.
Date: October 1, 1979
Creator: Bloom, G.R.
Partner: UNT Libraries Government Documents Department
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