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615
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Analysis of fracture modes during extrusion and drawing of bimetal rods or wire. Analytical study of drawing and extrusion of superconducting filamentary wires: fracture problems and evaluation of temperature rise. Final report
Based on the upper-bound theorem in limit analysis, a theoretical model describing sound flow, core fracture, and sleeve fracture in bimetal rods and wire during extrusion and drawing was developed. The variables affecting core and sleeve fracture are: reduction in area, die geometry, friction, relative size and strength of the core, and applied surface tractions. Within the wide range of combinations of these process variables, only a small range permits co-extrusion and codrawing without fracture. Criteria for the prevention of core and sleeve fracture during co-extrusion and core fracture during co-drawing were developed and presented graphically in this study. The results were applied to the central burst problem during extrusion and drawing of homogeneous materials.
Date:
January 9, 1984
Creator:
Avitzur, B.; Wu, R.; Chou, Y.T. & Talbert, S.
Object Type:
Report
System:
The UNT Digital Library
Planning for the next generation of standard electronics
Recommendations of a committee for a new standard to meet needs of new high-energy physics experiments are summarized in a nontechnical manner. Existing standards, including CAMAC, were examined; it was felt that none would meet the future needs of high-energy physics. The original committee gave its recommendations and disbanded. The design committee has begun its work; it anticipates finishing in about two years, in time for application of its recommendations to ISABELLE. (RWR)
Date:
September 9, 1977
Creator:
Leipuner, L.
Object Type:
Article
System:
The UNT Digital Library
Comparative Data on the Federal Government Budget Estimates Originally Submitted to Congress and the Final Budget Conditions Realized, Fiscal Years 1921-1971
This report provides a listing comparing the amount of the federal budget request for each fiscal year to the final budget. It covers fiscal years 1921 to 1971.
Date:
February 9, 1970
Creator:
Brite, George K.
Object Type:
Report
System:
The UNT Digital Library
Powers of the President in the Field of Foreign Policy
This report is categorized in four categories: (I) Power as Commander-in-Chief, (II) Power to appoint and receive Ambassadors,(III) Power by and with the consent of the Senate to make Treaties and (IV) Power as chief Executive.
Date:
September 9, 1969
Creator:
Collier, Ellen C.
Object Type:
Report
System:
The UNT Digital Library
Oral Contraceptives: An Analysis of Their Use in the United States
This report discusses the use of oral contraceptives in the United States and concerns about their safety and effectiveness as well as related legislation and Senate hearings regarding these concerns.
Date:
July 9, 1970
Creator:
McKenzie, Susan R.
Object Type:
Report
System:
The UNT Digital Library
Lithium--water--air battery: a new concept for automotive propulsion. [Modified lithium--water battery, mechanically rechargeable]
None
Date:
April 9, 1975
Creator:
Behrin, E.; Borg, I.Y.; Cooper, J.F.; O'Connell, L.G.; Rubin, B. & Wiesner, H.J.
Object Type:
Report
System:
The UNT Digital Library
Evaluation of filter media for clarification of partially dissolved residues containing plutonium
A common process in the chemical industry employs the leaching of a desirable component from an insoluble substrate, followed by filtration to produce a clarified solution of the desirable component and a discardable residue. The work described here involved evaluating sintered metal filter media for separating dissolved plutonium from undissolved residues generated at various locations owned by the Department of Energy throughout the United States. The work was performed during a six-week assignment at the Savannah River Laboratory as part of a high school science enrichment program conducted in the summer of 1989. The leach step used included dissolving the plutonium-containing solids in a solution of nitric-hydrofluoric acid. To simulate the partial solubility of the actual plutonium-containing residues, a non-radioactive power plant flyash was used. 6 refs., 14 figs., 1 tab.
Date:
October 9, 1989
Creator:
Foley, E.S.
Object Type:
Report
System:
The UNT Digital Library
Hybrid reactors. [Fuel cycle]
The rationale for hybrid fusion-fission reactors is the production of fissile fuel for fission reactors. A new class of reactor, the fission-suppressed hybrid promises unusually good safety features as well as the ability to support 25 light-water reactors of the same nuclear power rating, or even more high-conversion-ratio reactors such as the heavy-water type. One 4000-MW nuclear hybrid can produce 7200 kg of /sup 233/U per year. To obtain good economics, injector efficiency times plasma gain (eta/sub i/Q) should be greater than 2, the wall load should be greater than 1 MW.m/sup -2/, and the hybrid should cost less than 6 times the cost of a light-water reactor. Introduction rates for the fission-suppressed hybrid are usually rapid.
Date:
September 9, 1980
Creator:
Moir, Ralph W.
Object Type:
Article
System:
The UNT Digital Library
Marketing research for EE G Mound Applied Technologies' heat treatment process of high strength materials
This report summarizes research conducted by ITI to evaluate the commercialization potential of EG G Mound Applied Technologies' heat treatment process of high strength materials. The remainder of the report describes the nature of demand for maraging steel, extent of demand, competitors, environmental trends, technology life cycle, industry structure, and conclusion. (JL)
Date:
October 9, 1991
Creator:
Shackson, R.H.
Object Type:
Report
System:
The UNT Digital Library
Preliminary plan for the development of geothermal energy in the town of Gabbs, Nevada
Characteristics of the site significant to the prospect for geothermal development are described, including: physiography, demography, economy, and the goals and objectives of the citizens as they relate to geothermal development. The geothermal resource evaluation is described, including the depth to reservoir, production rates of existing water wells, water quality, and the resource temperature. Uses of the energy that seem appropriate to the situation both now and in the foreseeable future at Gabbs are described. The essential institutional requirements for geothermal energy development are discussed, including the financial, environmental, legal, and regulatory requirements. The main resource, engineering and institutional considerations involved in a geothermal district heating system for Gabbs are summarized.
Date:
November 9, 1981
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Science and art in heavy-ion collisions
One of the more intriguing phenomena discovered in heavy-ion physics is the seeming appearance of high energy structure in the excitation spectra of inelastically scattered heavy ions. For reasons illustrated, these may well be a phenomena unique to heavy ions and their explanation perhaps unique to TDHF.
Date:
August 9, 1982
Creator:
Weiss, M.S.
Object Type:
Article
System:
The UNT Digital Library
Development of ultrafiltration and inorganic adsorbents for reducing volumes of low-level and intermediate-level liquid waste: July--September 1977
The ultrafiltration (UF) pilot system is being evaluated at Mound Facility. The effect of pressure drop, temperature, and pH of the feed on system performance has been studied. The system has been run through a number of cleaning cycles including tap water flush, enzyme soak, detergent wash, and citric acid/oxalic acid wash. A continuous run was started on waste from the Waste Processing Facility; about 11,500 gal has been processed. Studies to determine the effect of (..cap alpha.., ..beta.., and ..gamma..) radiation on membrane characteristics were initiated. The small laboratory column tests were completed. Isotherms were run on several inorganic adsorbents, including titanium phosphate and sodium titanate. Tests were continued on the Engineering Test Ion Exchange System. Waste solution from the Waste Processing Facility spiked with plutonium-238 and ultrafiltration product spiked with uranium-233 were used as feeds. 6 tables, 1 figure.
Date:
February 9, 1978
Creator:
Koenst, J. W.; Herald, W. R. & Roberts, R. C.
Object Type:
Report
System:
The UNT Digital Library
Advanced-fueled fusion reactors suitable for direct energy conversion. Fourth quarterly progress report: October 1976--December 1976 and first quarterly progress report: January 1977--March 1977
The direct energy conversion efficiencies calculated for Cat-D and D-/sup 3/He fueled Tokamak reactors are summarized over a range of reactor designs, collector configurations, assumed T/sub e//T/sub i/ ratios, and power densities. The performance of a system of superconducting coils that produce those fields required to guide escaping plasma along the path between the bundle divertor coils and the direct converter is also discussed.
Date:
September 9, 1977
Creator:
Blum, A. S.
Object Type:
Report
System:
The UNT Digital Library
Charged particle fusion targets. [Energy requirements for inertial confinement fusion]
The power, voltage, energy and other requirements of electron and ion beam fusion targets are reviewed. Single shell, multiple shell and magnetically insulated target designs are discussed. Questions of stability are also considered. In particular, it is shown that ion beam targets are stabilized by an energy spread in the ion beam.
Date:
November 9, 1977
Creator:
Bangerter, R.O. & Meeker, D.J.
Object Type:
Article
System:
The UNT Digital Library
Evaluation of the mouse micronucleus test as compared with the in vivo cytogenics test for mutagenicity of synthetic fuel materials. Topical report
This brief topical report, provides information on a comparison of the mouse micronucleus mutagenic test proposed by a DOE contractor (FMC) for coal derived chemicals; as compared with the in vivo cytogenic test. The latter procedure is repotedly preferred by EPA authorities connected with implementation of the toxic substances control act (TOSCA). This evaluation was performed at the request of Headquarters DOE program management staff. The mouse micronucleus test takes less time and costs approximately one-fourth that of the in vivo cytogenetic procedure. This topical report is written to the extent possible in non-technical language to present conclusions associated with the evaluation rather than a detailed scientific dissertation.
Date:
March 9, 1980
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Rf heating of mirrors
A brief overview is presented of potential uses for rf heating of plasmas in mirror devices. While some discussion relating to past experiments is given, the main emphasis is devoted to a review of potential experiments in presently existing devices, and devices under construction or planning. Some predictions are made for plasmas in mirror reactors.
Date:
April 9, 1980
Creator:
Porkolab, M.
Object Type:
Report
System:
The UNT Digital Library
Geothermal reservoir insurance study. Final report
The principal goal of this study was to provide analysis of and recommendations on the need for and feasibility of a geothermal reservoir insurance program. Five major tasks are reported: perception of risk by major market sectors, status of private sector insurance programs, analysis of reservoir risks, alternative government roles, and recommendations.
Date:
October 9, 1981
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Cladding creepdown under compression. [BWR; PWR]
Light-water power reactors use Zircaloy tubing as cladding to contain the UO/sub 2/ fuel pellets. In-service operating conditions impose an external hydrostatic force on the cladding, causing it to creep down into eventual contact with the fuel. Knowledge of the rate of such creepdown is of great importance to modelers of fuel element performance. An experimental system was devised for studying creepdown that meets several severe requirements by providing (1) correct stress state, (2) multiple positions for measuring radial displacement of the cladding surface, (3) high-precision data, and (4) an experimental configuration compact enough to fit in-reactor. A microcomputer-controlled, eddy-current monitoring system was developed for this study and has proven highly successful in measuring cladding deformation with time at temperatures of 371/sup 0/C (700/sup 0/F) and higher, and at pressures as high as 21 MPa (3000 psig).
Date:
November 9, 1977
Creator:
Hobson, D.O.
Object Type:
Article
System:
The UNT Digital Library
Pretreatment of Kapton-coated cable for epoxy adhesion
Preliminary testing of a new system for protecting bonded strain gages that will be attached to the MFTF magnets indicated falling electrical resistance to ground, attributed to the infiltration of moisture. The most likely infiltration route seemed to be along the Kapton lead cable, which has an outer surface of FEP fluorocarbon resin. Samples of the cable were pretreated with a fluorocarbon etchant, Tetra-Etch, for periods of 10, 25, and 40 s at room temperature, followed by rinsing with demineralized water. The treated ends were embedded in the proposed epoxy sealant, Hysol EA 934, a compound containing 70 wt % of asbestos. The tensile-shear stresses required to pull the wires out of these embedments were measured. Results show that the three levels of treatment are equally effective in raising the bond strength from 377 psi for the untreated cable to about twice that, 763 psi. The 40-s exposure to Tetra-Etch appears to have penetrated the 0.5-mil fluorocarbon coating and attacked the Kapton film and the conductor coatings inside it.
Date:
January 9, 1984
Creator:
Carley, J. F.
Object Type:
Report
System:
The UNT Digital Library
Human factors engineering control-room-design review/audit report: Palo Verde Nuclear Generating Station, Arizona Public Service Company
A human factors engineering design review of the Palo Verde control room simulator was performed at the site on September 15 through September 17, 1981. Observed human factors design discrepancies were given priority ratings. This report summarizes the team's observations of the control room design and layout and of the control room operators' interface with the control room environment. A list of the human factors strengths observed in the Palo Verde control room simulator is given.
Date:
October 9, 1981
Creator:
Savage, J.W. & Lappa, D.A.
Object Type:
Report
System:
The UNT Digital Library
Startup of reversed-field mirror reactors using coaxial plasma guns
Preliminary calculations are given that indicate that a coaxial plasma gun might scale reasonably to reactor-grade operating conditions. Ongoing experiments and numerical simulations should shed some light on the validity of the described scaling laws.
Date:
November 9, 1979
Creator:
Smith, A. C., Jr.; Hartman, C. W.; Carlson, G. A.; Neef, W. S., Jr. & Eddleman, J. L.
Object Type:
Article
System:
The UNT Digital Library
Head assembly for multiposition borehole extensometer
A head assembly for a borehole extensometer and an improved extensometer for measuring subsurface subsidence. A plurality of inflatable anchors provide discrete measurement points. A metering rod is fixed to each of the anchors which are displaced when subsidence occurs, thereby translating the attached rod. The head assembly includes a sprocket wheel rotatably mounted on a standpipe and engaged by a chain which is connected at one end to the metering rod and at the other end to a counterweight. A second sprocket wheel connected to the standpipe also engages the chain and drives a connected potentiometer. The head assembly converts the linear displacement of the metering rod to the rotary motion of the second sprocket wheel, which is measured by the potentiometer, producing a continuous electrical output.
Date:
June 9, 1981
Creator:
Frank, D.N.
Object Type:
Patent
System:
The UNT Digital Library
Acoustic emission from beryllium
The acoustic emission from both powder and ingot source beryllium has been measured as a function of strain and prior heat treatment. Most measurements were made during tensile deformation, but a limited number of compression tests have also been performed. The acoustic emission observed was of the burst type, with little or no contribution from continuous type emission. The emission was characterized by the variation of burst rate and average energy per burst as a function of strain. The tensile behavior was qualitatively similar for all the materials tested. Burst rate maxima centered roughly at 0.1 percent and 1.0 percent plastic strain were observed. The magnitude but not the strain at the low strain burst rate peak was very sensitive to prior thermal treatment, while the higher strain burst rate peak was insensitive to prior heat treatment. An energy per burst maximum was observed at 0.2 percent plastic strain, the magnitude of which was moderately sensitive to heat treatment. The Kaiser effect is observed in the material studied. Emission during compression was similar to that observed in tension. The acoustic emission observed is attributed to dislocation motion, as proposed by James and Carpenter for LiF, NaCl, and Zn. Metallographic studies …
Date:
June 9, 1976
Creator:
Heiple, C. R. & Adams, R. O.
Object Type:
Report
System:
The UNT Digital Library
properties of low-index laser materials
Measurements of n/sub 2/ for a large class of oxide and fluoride crystals and glasses have been made using 100-ps, 1.06-..mu..m laser pulses and time-resolved interferometry. Values of n/sub 2/ for various glasses are summarized.
Date:
May 9, 1980
Creator:
Weber, M. J.
Object Type:
Report
System:
The UNT Digital Library