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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
Facile reaction/extraction of coal with supercritical fluids. Quarterly technical progress report, January 1-March 31, 1984
Arylmethyl phenyl ethers undergo competing reactions when treated with Lewis acids in benzene solvent. Apparently, benzene is insufficiently reactive to compete with intramolecular (intrapolymer) nucleophiles and, consequently, no increase in solubility accompanies the cleavages of ether links upon addition of benzene. When better nucleophiles, naphthalene and phenanthene, are provided, carbonium ions generated from ether cleavages are capped and the product is lower in molecular weight and more soluble. It is worth noting that the naphthalene (k/sub rel/ = 300) is nearly as good a trap as the phenol (k/sub rel/ = 450). Since hydroxylic solvents will level the acid strength of BF/sub 3/ to that of ROBF/sub 3//sup -/H/sup +/ and hydrocarbons would not, the acid-catalyzed bond cleavages necessary for unlinking coal may in fact be faster in BF/sub 3/-arene than in BF/sub 3/-phenol. While we have not yet extended these results to coals, we believe that the combination of a relatively mild Lewis acid catalyst, BF/sub 3/, with a good carbonium ion trap, naphthalene, will allow selective cleavage and capping of aryl alkyl ether bonds. 3 references, 2 figures, 3 tables.
Date:
April 20, 1984
Creator:
Venier, C. G. & Squires, T. G.
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
[Check In Desk and Many Guests at Mayborn Agency Showcase]
Photograph of the check-in desk and many guests attending the Mayborn Agency Showcase held at New College UNT, Frisco. The Mayborn School of Journalism hosts an annual event called the Mayborn Showcase. During the event, the SWOOP advertising agency students, the Ad Team students and the Hatch Visuals photography students give presentations to area professionals.
Date:
April 20, 2017
Creator:
Clark, Junebug
Object Type:
Photograph
System:
The UNT Digital Library
[The SWOOP Table Setup at the Mayborn Agency Showcase]
Photograph of the SWOOP table setup at the Mayborn Agency Showcase held at New College UNT, Frisco. The Mayborn School of Journalism hosts an annual event called the Mayborn Showcase. During the event, the SWOOP advertising agency students, the Ad Team students and the Hatch Visuals photography students give presentations to area professionals.
Date:
April 20, 2017
Creator:
Clark, Junebug
Object Type:
Photograph
System:
The UNT Digital Library
[Check In Desk at the Mayborn Agency Showcase]
Photograph of the check-in desk at the Mayborn Agency Showcase held at New College UNT, Frisco. The Mayborn School of Journalism hosts an annual event called the Mayborn Showcase. During the event, the SWOOP advertising agency students, the Ad Team students and the Hatch Visuals photography students give presentations to area professionals.
Date:
April 20, 2017
Creator:
Clark, Junebug
Object Type:
Photograph
System:
The UNT Digital Library
[HATCH Visuals Students at Mayborn Agency Showcase]
Photograph of Hatch Visuals students at their display table, featuring their items for the Mayborn Agency Showcase held at New College UNT, Frisco.
Date:
April 20, 2017
Creator:
Clark, Junebug
Object Type:
Photograph
System:
The UNT Digital Library
MHD compressor---expander conversion system integrated with GCR inside a deployable reflector
This work originates from the proposal MHD Compressor-Expander Conversion System Integrated with a GCR Inside a Deployable Reflector''. The proposal concerned an innovative concept of nuclear, closed-cycle MHD converter for power generation on space-based systems in the multi-megawatt range. The basic element of this converter is the Power Conversion Unit (PCU) consisting of a gas core reactor directly coupled to an MHD expansion channel. Integrated with the PCU, a deployable reflector provides reactivity control. The working fluid could be either uranium hexafluoride or a mixture of uranium hexafluoride and helium, added to enhance the heat transfer properties. The original Statement of Work, which concerned the whole conversion system, was subsequently redirected and focused on the basic mechanisms of neutronics, reactivity control, ionization and electrical conductivity in the PCU. Furthermore, the study was required to be inherently generic such that the study was required to be inherently generic such that the analysis an results can be applied to various nuclear reactor and/or MHD channel designs''.
Date:
April 20, 1989
Creator:
Tuninetti, G. (Ansaldo S.p.A., Genoa (Italy). Research Div.); Botta, E.; Criscuolo, C.; Riscossa, P. (Ansaldo S.p.A., Genoa (Italy). Nuclear Div.); Giammanco, F. (Pisa Univ. (Italy). Dipt. di Fisica) & Rosa-Clot, M. (Florence Univ. (Italy). Dipt. di Fisica)
Object Type:
Report
System:
The UNT Digital Library
THE HEAT CAPACITY OF BERYLLIUM CARBIDE POWDER IN STAINLESS STEEL CAPSULES AS A FUNCTION OF TEMPERATURE (400-1800 F)
The mean heat capacity of a sample of powdered beryllium carbide, a possible moderator material for a nuclear reactor, was determined as a function of temperature. A thin-walled stainless steel capsule containing the material was heated in an electric furnace and dropped into a water calorimeter. The following linear equation for mean heat capacity over the temperature range 50 f C-T f C as a function of temperature, T, was derived from the data by the method of least squares: C/sub p/ = 0.299 + 2.16 x 10/sup -4/ T f C el temperatures 0.005 cal gm/sup -1/( f C)/sup -1/. The numerical value of C/sub p/ expressed by this equation is also equal to the mean heat capacity in Btu lb/sup -1/( f F)/sup -1/. (auth)
Date:
April 20, 1949
Creator:
Powers, H.; Kostigen, T. & Trice, J.B.
Object Type:
Report
System:
The UNT Digital Library
Fusion breeder
The fusion breeder is a fusion reactor designed with special blankets to maximize the transmutation by 14 MeV neutrons of uranium-238 to plutonium or thorium to uranium-233 for use as a fuel for fission reactors. Breeding fissile fuels has not been a goal of the US fusion energy program. This paper suggests it is time for a policy change to make the fusion breeder a goal of the US fusion program and the US nuclear energy program. The purpose of this paper is to suggest this policy change be made and tell why it should be made, and to outline specific research and development goals so that the fusion breeder will be developed in time to meet fissile fuel needs.
Date:
April 20, 1982
Creator:
Moir, Ralph W.
Object Type:
Article
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
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
Comparison of the initial ETA gas propagation experiments with theoretical models
This report contains a description of the initial ETA propagation experiments in air at a beam current of 4.5 kA. The beam was observed to propagate at the pressures anticipated on the basis of previous theory and experiment. A comparison of measured net current waveforms with predictions of the PHOENIX code showed good agreement over the pressure range 0.1 to 200 torr. However, the beam was observed to expand with Z at a faster rate than theory predicts. Excessive transverse beam modulation at injection complicated the experiments and limited their comparison with theory.
Date:
April 20, 1982
Creator:
Chambers, F. W.; Clark, J. C. & Fessenden, T. J.
Object Type:
Report
System:
The UNT Digital Library
[News Clip: Sound of Music]
B-roll video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date:
April 20, 1994, 6:00 p.m.
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
Why search for double beta decay
Searching for neutrinoless double beta decay is the only known practical method for trying to determine whether neutrinos are their own antiparticles. The theoretical motivation for supposing that they may indeed be their own antiparticles is described. The reason that it is so difficult to ascertain experimentally whether they are or are not is explained, as is the special sensitivity of neutrinoless double beta decay. The potential implications of the observation of this reaction for neutrino mass and for the physics of neutrinos is discussed.
Date:
April 20, 1988
Creator:
Kayser, B.
Object Type:
Article
System:
The UNT Digital Library
Current California legislative and regulatory activity impacting geothermal hydrothermal commercialization: monitoring report No. 2. Report No. 1020
The progress of four bills relating to geothermal energy is reported. The current regulatory activities of the California Energy Commission, the Lake County Planning Commission/Lake County Air Pollution Control District, the Governor's Office of Planning and Research, the State Lands' Commission, and the California Public Utilities Commission are reviewed. (MHR)
Date:
April 20, 1980
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
The Oklahoma Democrat. (Altus, Okla.), Vol. 5, No. 5, Ed. 1 Thursday, April 20, 1911
Weekly newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
April 20, 1911
Creator:
Williams, R. T.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Greer County Democrat (Mangum, Okla.), Vol. 26, No. 32, Ed. 1 Thursday, April 20, 1916
Weekly newspaper from Mangum, Oklahoma that includes local, state, and national news along with advertising.
Date:
April 20, 1916
Creator:
Anderson, A. W.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Taloga Times-Advocate (Taloga, Okla.), Vol. 28, No. 45, Ed. 1 Thursday, April 20, 1922
Weekly newspaper from Taloga, Oklahoma that includes local, state, and national news along with advertising.
Date:
April 20, 1922
Creator:
unknown
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Guthrie Daily News. (Guthrie, Okla. Terr.), Vol. 5, No. 1463, Ed. 1 Friday, April 20, 1894
Daily newspaper from Guthrie, Oklahoma Territory that includes local, territorial, and national news along with advertising.
Date:
April 20, 1894
Creator:
unknown
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Oklahoma State Register. (Guthrie, Okla.), Vol. 14, No. 16, Ed. 1 Thursday, April 20, 1905
Weekly newspaper from Guthrie, Oklahoma Territory that includes local, territorial, and national news along with advertising.
Date:
April 20, 1905
Creator:
Golobie, John
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Oklahoma Democrat (Altus, Okla.), Vol. 9, No. 6, Ed. 1 Thursday, April 20, 1916
Weekly newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
April 20, 1916
Creator:
unknown
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Mangum Mirror (Mangum, Okla.), Vol. 1, No. 10, Ed. 1 Friday, April 20, 1917
Semi-weekly newspaper from Mangum, Oklahoma that includes local, state, and national news along with advertising.
Date:
April 20, 1917
Creator:
Ryder, J. W.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History