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Near Term Hybrid Passenger Vehicle Development Program. Phase I, Final report. Appendix A: mission analysis and performance specification studies. Volume I
Studies are described which were performed for the Near Term Hybrid Vehicle program to determine passenger car usage patterns and to correlate these trip mission characteristics with vehicle design and performance specifications. (LCL)
Date:
April 20, 1979
Creator:
Traversi, M. & Barbarek, L.A.C.
Object Type:
Report
System:
The UNT Digital Library
Tellurium interference in /sup 129/I activation analysis
Measurement of /sup 129/I at low levels is required for effluent control, environmental assessment and tracer studies in the natural environment. Low level /sup 129/I analysis has also been used for measurement of natural-fission-produced /sup 129/I in minerals and ores as well as meteorites. The most sensitive method for /sup 129/I measurements is neutron activation analysis of iodine separated from a suitable sample. Minimum sample processing prior to neutron activation is desirable in order to reduce chances of sample contamination with uranium or /sup 129/I. A potential interference in the activation analysis method is the production of /sup 129/I (/sup 130/I) from Te impurities in the irradiated ampoule. Procedures have been developed and applied to measurement of the magnitude of the potential Te interference. One-tenth of a microgram of Te in the irradiated ampoule is sufficient to produce interference in the analysis. This is detectable by either radiochemical Te measurements or by /sup 131/I detection in the iodine fraction from the irradiated ampoule. This paper discusses the procedures and results of Te interference studies in /sup 129/I activation analysis. The interference was found to be insignificant for most analyses. 5 tables.
Date:
September 20, 1979
Creator:
Kaye, J. H.; Brauer, F. P. & Strebin, Jr., R. S.
Object Type:
Article
System:
The UNT Digital Library
Development of passive electronic components for instrumentation of improved geothermal logging tools and components. Annual progress report
Short term objectives for well-logging instrumentation are circuits which can operate at temperatures in the range 275/sup 0/C to 350/sup 0/C; the medium term goal is operation up to 500/sup 0/C, and the long term goal is to achieve operation at 1000/sup 0/C. It is apparent that useful electronic circuits will require the combination of both passive components and active devices. In order to meet the compatibility requirements, the basic technology which has been selected in this project is the chemical vapor deposition of metal interconnections, resistor material, dielectric material and passivating material. It is to be emphasized that this is a thin-film, not thick-film, technology which is compatible with the processing methods used in fabricating either semiconductor or integrated thermionic devices, and produces components which are electrically compatible with those devices. The investigation in this project is primarily directed toward tungsten metallization, tungsten-silicon resistors, and silicon nitride dielectric and passivation.
Date:
October 20, 1977
Creator:
Raymond, L.S.; Hamilton, D.J. & Kerwin, W.J.
Object Type:
Report
System:
The UNT Digital Library
Coal fracture measurements using in situ electrical methods: preliminary results
None
Date:
November 20, 1974
Creator:
Lytle, R.J.; Laine, E.F. & Lager, D.L.
Object Type:
Report
System:
The UNT Digital Library
The Philippines: A Bibliography
This report is a bibliography that cites the information related to the Philippines; its General and Historical content, Government and Politics, Economy, and Foreign Relations.
Date:
January 20, 1970
Creator:
Niksch, Larry A.
Object Type:
Report
System:
The UNT Digital Library
The Operation and Procedures of the Selective Service System
This report provides information about the operation and procedures of the Selective Service System on both the national and local board level.
Date:
April 20, 1970
Creator:
Buchan, Lois
Object Type:
Report
System:
The UNT Digital Library
Minimum Statutory Ages For Various Social Functions
This report provides information about minimum age to commit various social functions like complete driving license,minimum age to consume alcohol and many which varies according to individual state laws in entire USA.
Date:
April 20, 1971
Creator:
Glass, Stuart
Object Type:
Report
System:
The UNT Digital Library
Desegregation in Education, August 1966-June 15, 1970: Pro and Con Selected References
This report provides a bibliography of resources related to desegregation in education from August 1966 to June 15, 1970 divided by material type.
Date:
July 20, 1970
Creator:
Kesler, Linda S.; Kornblith, Sally J. & Miller, Helen A.
Object Type:
Report
System:
The UNT Digital Library
Energy Exchange Within Ecosystems Annual Report: 1976
None
Date:
September 20, 1975
Creator:
Gates, David M.
Object Type:
Report
System:
The UNT Digital Library
Summary data for U. S. commercial nuclear power plants in the United States
A compilation of data is presented for all United States commercial nuclear power plants for which a construction permit application was made through the Nuclear Regulatory Commission. The data are compiled in four separate tables with cross-referencing indexes: Table 1--General Data; Table 2--Reactor Data; Table 3--Site Data, and Table 4--Circulating-Water System Data. The power plants are listed in numerical order by docket number in all four tables.
Date:
March 20, 1978
Creator:
Heddleson, F.A.
Object Type:
Report
System:
The UNT Digital Library
Research in radiation monitoring survey instrumentation. Final report
Two low-power solid-state prototype readout units were developed, an LED display and a LCD display. This display output was in a bar-graph format, covering four-decades of information, with 10-segments per decade. The displays accept a frequency input, which is standardly available from several portable radiation-survey instruments. Both readout units will operate on two D-cell batteries (3.0 Volt), with a typical current drain requirement of 0.3 MA for the LED display and 30..mu..A for the LCD display. A wide-range electrometer circuit was also developed. The circuit covers an input current range from 10/sup -13/ A to 10/sup -8/ A. The output signal is a pulse whose frequency is directly proportional to input current. The circuit requires no high-megohm resistors, and is autoranging. Several candidate input amplifiers were analyzed and evaluated for use with the electrometer circuit.
Date:
January 20, 1978
Creator:
Blalock, T. V.; Kennedy, E. J.; Phillips, R. G. & Walker, E. W. Jr.
Object Type:
Report
System:
The UNT Digital Library
Review of California's geothermal-related legislative and regulatory activity through 1979. Report No. 1116
The findings of the 1977 State Geothermal Resources Task Force are divided into four main categories: well siting, power plant siting; environmental problems; and miscellaneous areas. California's 1978 legislation is described using the same categories. The key difficulties still harassing the state's geothermal industry are described including: control over air quality at the Geysers; powerplant finance; a binary cycle demonstration; federal land use decisions; and miscellaneous concerns. (MHR)
Date:
December 20, 1979
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Remote servicing features of two new mirror fusion reactors
Several general approaches to remote servicing are briefly described for the LLL Field Reversed Mirror and Tandem Mirror Fusion reactors. Remote servicing system design considerations for the blanket module are briefly discussed. (RME)
Date:
April 20, 1977
Creator:
Neef, W.S. Jr.
Object Type:
Article
System:
The UNT Digital Library
Site-specific legal and institutional analysis of the barriers to geothermal hydrothermal commercialization present at target prospects in the five Pacific Rim states
The specifics of the permitting process, land access, power plant siting, water law, and other legal or institutional barriers or conflicts are presented for each of the most highly regarded target electric prospects in the five Pacific Rim states: California, Hawaii, Alaska, Oregon, and Wasington. (MHR)
Date:
October 20, 1979
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Development of Passive Electronic Components for Instrumentation of Improved Geothermal Logging Tools and Components. Semiannual Progress Report. Report No. 1. [For Temperatures Up to 500/sup 0/C]
Research progress is reported on the development of passive components, resistors, capacitors, metallization, and passivation, that will withstand well logging temperatures to 500/sup 0/C and have extremely low temperature coefficients. The lower the temperature coefficients, the more exacting the instrumentation designs can be without elaborate compensation techniques. The method of fabricating the thin film components is that of chemical vapor deposition (CVD) which is a major deviation from the standard approach. The films are grown in a CVD reactor by passing various reactant gases over a heated substrate. The reactor was modified in order to accommodate the gases needed in the deposition of metals. The reactor can be operated over a temperature range of 400/sup 0/C to greater than 1200/sup 0/C, and at any pressure between atmospheric and 1 x 10/sup -3/ torr. Tungsten, tungsten-silicon, and silicon nitride were successfully deposited on oxidized silicon wafers. The tungsten is used for interconnects and capacitor plates, tungsten-silicon is used as a high resistivity material for resistors, and silicon nitride is used as a dielectric for the capacitors and as a passivation layer. The materials are currently being studied in terms of their deposition parameters and electrical characteristics.
Date:
April 20, 1977
Creator:
Raymond, L. S.; Hamilton, D. J. & Kerwin, W. J.
Object Type:
Report
System:
The UNT Digital Library
Materials testing using laser energy deposition
A convenient method for determining the elastic constants of materials has been devised using the energy from a Q-switched neodymium-glass laser. Stress waves are induced in materials having circular rod or rectangular bar geometries by the absorption of energy from the laser. The wave transit times through the material are recorded with a piezoelectric transducer. Both dilatation and shear wave velocities are determined in a single test using an ultrasonic technique and these velocities are used to calculate the elastic constants of the material. A comparison of the constants determined for ten common engineering materials using this method is made with constants derived using the conventional ultrasonic pulse technique and agreement is shown to be about one percent in most cases. Effects of material geometry are discussed and surface damage to the material caused by laser energy absorption is shown.
Date:
December 20, 1977
Creator:
Wilcox, W.W. & Calder, C.A.
Object Type:
Article
System:
The UNT Digital Library
Lithium--water--air battery project: progress during the months of August--November. [Development of prototype Al/air cell]
Work done on the Lithium--Water--Air Battery Research Program in the work period August through November, 1977, is summarized. A prototype single-cell fuel cell was developed. The single galvanic cell consists of two 30-cm square aluminum plates separated by a two-faced air cathode mockup. The purposes of the model are to determine ease and cost of electrode servicing and weight and manufacturing cost of the hardware. Projections of fuel cell performance and cost were made, based on the prototype cell and the performance of cells of similar anode--cathode spacing produced by Lockheed Missiles and Space Company. Performance is a strong function of the weight of water carried in the fuel cell, as water is the limiting reactant when sufficient aluminum is carried for a vehicle range of 1600 km. Research concerning the electrochemistry of calcium in aqueous chloride--hydroxide electrolytes is summarized with reference to a recent presentation of the work at the Fall Meeting of the Electrochemical Society. Polarization curves were obtained for the aluminum alloy used by Lockheed in fuel cell research. The experimental data agree closely with Lockheed's published results. 9 figures, 1 table.
Date:
December 20, 1977
Creator:
Cooper, J.F.; Hosmer, P.K.; Krikorian, O.; Kelly, E. & Parrish, W.
Object Type:
Report
System:
The UNT Digital Library
Inelastic Strong Interactions at High Energies. [Cross Sections, Field Theory]
A method permitting the calculation of inclusive and semi-inclusive cross sections at high energies starting from an arbitrary field theory was worked out. The method relies on a functional integral representation of the generating functional of inclusive cross sections and on the use of semiclassical methods. The inclusive cross section is proportional to the absolute square of the Fourier transform of a special soliton solution of the classical field equations in zeroth order semi-classical approximation. A conserved topological quantum number that has a nonzero value for the soliton solution was found. Future research to be performed in this field under the contract is described including applications to various field theories and the exploration of connections with Reggeon field theory.
Date:
October 20, 1977
Creator:
Suranyi, P.
Object Type:
Report
System:
The UNT Digital Library
Evaluation of anion exchange resins for processing plutonium--neptunium residues
An anion exchange process was developed to process miscellaneous residues of plutonium plus 0.5 wt % neptunium to allow prompt return of the plutonium to a plutonium recovery process. Several macroreticular anion exchange resins were compared to Dowex 1-X4 for the process. Dowex 1-X4 showed the best performance for the plutonium (III)-neptunium(IV) separation.
Date:
August 20, 1977
Creator:
Navratil, J. D. & Leebl, R. G.
Object Type:
Report
System:
The UNT Digital Library
Position and profile of a multiampere proton beam
The spacial profile of a bunched or unbunched proton beam may be found by using a highly collimated molecular beam of N/sub 2/. A certain fraction of the molecular N/sub 2/ will be ionized as it crosses the proton beam. By measuring the N/sub 2//sup +/ current as a function of theta the cross section of the beam is directly obtained. As an example, a 10 A proton beam of diameter 1 mm is considered.
Date:
October 20, 1977
Creator:
Edwards, D. Jr.
Object Type:
Article
System:
The UNT Digital Library
Directions for possible upgrades of the Mirror Fusion Test Facility (MFTF)
The Mirror Fusion Test Facility (MFTF) may be upgraded by extending the time of plasma sustenance in an approach to steady-state operation and/or by increasing the neutral-beam injection energy. Some parameter bounds for these upgrades are discussed as they relate to a definition of the required neutral-beam development.
Date:
December 20, 1977
Creator:
Damm, C. C.; Coensgen, F. H.; Devoto, R. S.; Molvik, A. W.; Porter, G. D.; Shearer, J. W. et al.
Object Type:
Article
System:
The UNT Digital Library
Computor program for mathematical evaluation of the Rocky Flats nuclear accident dosimetry system
A computer program has been developed to facilitate the evaluation of the Rocky Flats Emergency Dosimetry System. This program evaluates data to determine the neutron fluence associated with a criticality accident. It is necessary to obtain information about the critical system for personnel dose estimates. Information pertaining to the geometry and position of the critical material and orientation of personnel, with respect to the material, is essential to supplement the calculations contained in this program.
Date:
December 20, 1977
Creator:
Wood, C. B.
Object Type:
Report
System:
The UNT Digital Library
[Photograph 2012.201.B0051.1147]
Photograph taken for a story in the Daily Oklahoman newspaper. Caption: "MERRY GO ROUND RIDE was not so merry for George Cantrell and Jack Cantrell as the car they were towing caused both cars to turn completely around."
Date:
September 20, 1973
Creator:
Tullous, Don
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Coaches' Film: North Texas State University vs. San Diego State, 1975]
Partial footage of the 1975 football game between North Texas State University and San Diego State in San Diego, California, shot for coaching purposes. The game was held on September 20th, 1975 and the final score was 12-30, San Diego.
Date:
September 20, 1975
Creator:
unknown
Object Type:
Video
System:
The UNT Digital Library