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22,533 Matching Results
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Aerodynamic Re-Entry Analysis. Task 2. Thermoelectric Generator Summary Report
An analytical trajectory and aerothermodynamic analysis of a satellite containing a Task 2 thermoelectric generator was completed. A 300-statute mile circular polar orbit was used for this analysis and the launch was assumed to be from Vandenberg Air Force Base. Results of this study show that upon natural decay from a successful mission, the radio-cerium fuel will burn up in space at high altitude, thus only a very minor amount of radio cerium will be released to the stratosphere. A complete analyses of the fate of the radio-cerium fuel following various aborted launching attempts also was carried out. Charts summarizing the various assumed failures and locations of the fuel following failure are shown. A technical discussion of the methods used in performing the analysis is included in the report. (auth)
Date:
December 27, 1960
Creator:
Oehrli, R.
Object Type:
Report
System:
The UNT Digital Library
Reactor Development Program. Progress Report, December 1967
None
Date:
December 31, 1968
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Effect of Heat Flux on the Corrosion of Aluminum by Water. Part Iii. Final Report on Tests Relative to the High-Flux Isotope Reactor
The effect of very high heat fluxes on the corrosion of 1100 and 6061 aluminum alloys by water was investigated. The test conditions generally simulated those expected to exist during operation of the High-Flux lsotope Reactor. At heat fluxes between 1 and 2 x l0/sup 6/ Btu/hr-ft/sup 2/ and with coolant temperatures and velocities in the ranges of 13l to 250 deg F and 3l to 51 fps, respectively, a layer of boehmite ( alpha Al/sub 2/O/sub 3/- H/sub 2/0), which has low thermal conductivity, formed on the water-cooled aluminum surfaces during test. When only relatively thin films formed, the boehmite adhered tightly to the aluminum, but in those cases where relatively thick films formed, some boehmite spontaneously spalled from the surface. The rate at which the boehmite formed on the surface (and consequently the rate at which the aluminum temperature increased) was a function of the temperature at the specimen-water interface and the pH of the coolant. The lower the temperature and the lower the pH (in the range of 5.0 to 6.5 with HNO/sub 3/), the lower the rate of corrosion- product formation. Within the ranges investigated, pressure and flow rate were without effect, and the same results …
Date:
December 20, 1961
Creator:
Griess, J. C.; Savage, H. C.; Rainwater, J. G.; Mauney, T. H. & English, J. L.
Object Type:
Report
System:
The UNT Digital Library
Reactor Development Program. Progress Report, November 1967
None
Date:
December 31, 1967
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Reactor Development Program Progress Report, September 1967
None
Date:
December 31, 1967
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Biological Effects of Blast. Technical Progress Report
The current state of knowledge relevant to biological blast effects was summarized in a selective manner. Initially, five problems of concern to those who would relate the environmental variations produced by nuclear weapons with biological response and hazard assessment were pointed out. Primary, secondary, tertiary, and miscellaneous blast effects were defined and selected interspecies experimental data of a physical and pathophysiological nature useful in estimating human response were presented. Tentative biological criteria defining safe levels of exposure were set forth as were survival curves for different conditions of exposure in Hiroshima. These were discussed along with the comparative variations in range of the free-field effects as they vary with explosive yield. The fundamental requirement for surviving seconds, minutes, and hours to abet survival for days, weeks, months, and years was emphasized along with the necessity for planning protective measures against all hazardous weapons effects as one attractive alternative for minimizing casualties and maximizing survival in the event of a nuclear war. (auth)
Date:
December 1, 1961
Creator:
White, C. S.
Object Type:
Report
System:
The UNT Digital Library
Sodium-Cooled Reactors: Fast Ceramic Reactor Development Program. Twenty- Sixth Quarterly Report, February--April 1968
None
Date:
December 31, 1968
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Adsorption of Krypton and Xenon by Various Materials
The adsorptive capacities of various inorganic adsorbents and activated charcoals for krypton and xenon were determined. Columbia-G activated charcoal had the highest capacity for both krypton and xenon at pressures from 0.01 to 125 mm Hg and temperaturens from 2 to 85 deg C. If a value of 1 is assigned to the capacity of this charcoal at 28 deg C for krypton, other charcoals range from 0.63 to 0.84, molecular sieves (except 4A) from 0.11 to 0.20, and some silica genls from 0.05 to 0.07. Various othenr adsorbennts, including one variety of silica gel and molecular sieve 4A, range from 0.005 to 0.032. Molecular sienve 5A and Columbia-G charcoal adsorbed 11.5 times more xenon than krypton. Adsorption of 7.5% water by either of these adsorbents lowerend their capacity for krypton 25 to 30%, while saturating the sieve material ( approximates 15% H2O) lowered the krypton capacity 80%. (auth)
Date:
December 1, 1961
Creator:
Lloyd, M. H. & McNees, R. A.
Object Type:
Report
System:
The UNT Digital Library
Chemical Technology Division, Unit Operations Section Monthly Progress Report, May 1961
The experimental results on the oxidation of H from a He stream with CuO pellets were very close to the predicted behavior based on the mathematical model. Experimental measurements of uranyl sulfate loading rates on chloride equilibrated resin showed little variation with solution concentrations. A tentative flowsbeet was proposed for cost analysis of processing a Pebble Bed Reactor. A U-Zr plate was dissolved in nitrate-free Zirflex solution. An authentic TRIGA prototype was processed in engineering-scale equipment. Three 4- stage leacher model dissolution runs were made, two of which used 8 M HNO/sub 3/ and one used 4 M HNO/sub 3/. Flooding rates and holdup data were obtained for sieve plate pulse columns under 5% TBP - l.8 Mi Al(NO/sub 3/)/sub 3/ flowsheet conditions. A Purex waste calcination run (R-37) was made using sodium anid imagnesium to reduce sulfate volatility. (auth)
Date:
December 26, 1961
Creator:
Whatley, M. E.; Haas, P. A.; Horton, R. W.; Ryon, A. D.; Suddath, J. C. & Watson, C. D.
Object Type:
Report
System:
The UNT Digital Library
Sodium-Cooled Reactors Fast Ceramic Reactor Development Program. Twenty Fifth Quarterly Report, November 1967--January 1968
None
Date:
December 31, 1968
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
SOLID STATE DIVISION ANNUAL PROGRESS REPORT FOR PERIOD ENDING AUGUST 31, 1961
Progress in solid state physics is reported on the following topics: theory, metals and alloys, nonmetals, reactor materials, and special projects. Twenty-one separate abstracts were prepared. (M.C.G.)
Date:
December 29, 1961
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
SEPARATION OF TRANSPLUTONIUMS FROM LANTHANIDES BY TERTIARY AMINE EXTRACTION
None
Date:
December 20, 1961
Creator:
Baybarz, R.D. & Weaver, B.
Object Type:
Report
System:
The UNT Digital Library
Noise Considerations in Nuclear Pulse Amplifiers
The effects of certain pulse-shaping networks on the signal-to-noise ratio of a nuclear pulse amplifier were considered. The shaping networks discussed are: equal RC-integrating and RC-differentiating time constant, single- delay-line clipper and RC integrator, and doubledelay-line clipper and RC integrator. The effects of these networks on the signal, when high count rates and overload pulses are present, were also considered. Equations and curves were developed for the energy resolution (signal-tonoise ratio) and resolving time (related to the ability to operate at high counting rates) of the networks. Experimental results are shown for the energy resolution of the types of pulse- shaping networks considered. (auth)
Date:
December 20, 1961
Creator:
Landis, D. A.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
BIOLOGICAL AND MEDICAL RESEARCH DIVISION ANNUAL REPORT, 1967
None
Date:
December 31, 1967
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Local Welfare Administrators' Comments On the "Welfare Crisis."
This report discusses local welfare and it points out a wide range of opinions and proposals reflected in the discussions of proposals for improving or changing the exiting system.
Date:
December 17, 1968
Creator:
Malone, Margaret
Object Type:
Report
System:
The UNT Digital Library
Precedents of the House of Representatives in Respects to Procedure for Censure or Expulsion, 1966
This report contains the procedure and outlines of investigating issues caused by elected officials of government.
Date:
December 29, 1966
Creator:
Tienken, Robert L.
Object Type:
Report
System:
The UNT Digital Library
National Assessment of Education: Selected References
This report provides a bibliography of resources related to the National Assessment of Education program administered by the Education Commission of the United States.
Date:
December 18, 1969
Creator:
Loo, Shirley
Object Type:
Report
System:
The UNT Digital Library
[News Script: Xmas]
Script from the WBAP-TV/NBC station in Fort Worth, Texas relating a news story.
Date:
December 11, 1968
Creator:
WBAP-TV (Television station : Fort Worth, Tex.)
Object Type:
Script
System:
The UNT Digital Library
[News Script: Bank robbery]
Script from the WBAP-TV/NBC station in Fort Worth, Texas, covering a broadcast news story.
Date:
December 23, 1968
Creator:
WBAP-TV (Television station : Fort Worth, Tex.)
Object Type:
Script
System:
The UNT Digital Library
[News Script: Hijacked Passengers]
Script from the WBAP-TV/NBC station in Fort Worth, Texas relating a news story.
Date:
December 1, 1968
Creator:
WBAP-TV (Television station : Fort Worth, Tex.)
Object Type:
Script
System:
The UNT Digital Library
[News Script: Murder charges]
Script from the WBAP-TV/NBC station in Fort Worth, Texas relating a news story.
Date:
December 18, 1968
Creator:
WBAP-TV (Television station : Fort Worth, Tex.)
Object Type:
Script
System:
The UNT Digital Library
[News Script: Art]
Script from the WBAP-TV/NBC station in Fort Worth, Texas relating a news story.
Date:
December 12, 1968
Creator:
WBAP-TV (Television station : Fort Worth, Tex.)
Object Type:
Script
System:
The UNT Digital Library
[News Script: Painters]
Script from the WBAP-TV/NBC station in Fort Worth, Texas relating a news story.
Date:
December 7, 1968
Creator:
WBAP-TV (Television station : Fort Worth, Tex.)
Object Type:
Script
System:
The UNT Digital Library
[News Script: Vending suit]
Script from the WBAP-TV/NBC station in Fort Worth, Texas, covering a broadcast news story.
Date:
December 16, 1968
Creator:
WBAP-TV (Television station : Fort Worth, Tex.)
Object Type:
Script
System:
The UNT Digital Library