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Texas Game and Fish, Volume 13, Number 3, March 1955
Monthly magazine discussing natural resources, parks, hunting and fishing, and other information related to the outdoors in Texas.
Date:
March 1955
Creator:
Texas. Game and Fish Commission.
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
Texas Game and Fish, Volume 9, Number 4, March 1951
Monthly magazine discussing natural resources, parks, hunting and fishing, and other information related to the outdoors in Texas.
Date:
March 1951
Creator:
Texas. Game and Fish Commission.
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
Texas Game and Fish, Volume 12, Number 4, March 1954
Monthly magazine discussing natural resources, parks, hunting and fishing, and other information related to the outdoors in Texas.
Date:
March 1954
Creator:
Texas. Game and Fish Commission.
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
Texas Game and Fish, Volume 15, Number 3, March 1957
Monthly magazine discussing natural resources, parks, hunting and fishing, and other information related to the outdoors in Texas.
Date:
March 1957
Creator:
Texas. Game and Fish Commission.
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
Texas Game and Fish, Volume 10, Number 4, March 1952
Monthly magazine discussing natural resources, parks, hunting and fishing, and other information related to the outdoors in Texas.
Date:
March 1952
Creator:
Texas. Game and Fish Commission.
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
Texas Game and Fish, Volume 16, Number 3, March 1958
Monthly magazine discussing natural resources, parks, hunting and fishing, and other information related to the outdoors in Texas.
Date:
March 1958
Creator:
Texas. Game and Fish Commission. Information and Education Division.
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
Texas Game and Fish, Volume 17, Number 3, March 1959
Monthly magazine discussing natural resources, parks, hunting and fishing, and other information related to the outdoors in Texas.
Date:
March 1959
Creator:
Texas. Game and Fish Commission. Information and Education Branch.
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
Thorium Bismuthide : Ultrasonic Control of Crystal Size
Thorium bismuthide when crystallized from a solution i bismuth results in large platelets which may be as large a 1 centimeter in diameter. A slurry of these platelets is difficult to pump through pipe lines and filters. The particle size can be reduced by (1) very rapid cooing (approximately 1000 degree C per second) or (2) ultrasonic treatment. The latter, much easier to attain in large scale, gives equiaxed particles of thorium bismuthide.
Date:
March 16, 1959
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
RAYPAC : a Special-Purpose Analog Computer
As an aid in forecasting possible blast damage in areas distant from a bomb burst point, a special-purpose electronic analog computer has been developed. Sound ray paths (orthogonal trajectories to sound wave front) are computed as a function of meteorological conditions.
Date:
March 24, 1955
Creator:
Durham, H. B.
Object Type:
Report
System:
The UNT Digital Library
Higher harmonics of Radial Vibrations in Short Hollow Cylinders of Barium Titanate
This paper discusses the forbidden and allowed harmonics of a hollow cylinder of barium titanate vibrating in the radial mode.
Date:
March 9, 1955
Creator:
Stephenson, C.V.
Object Type:
Report
System:
The UNT Digital Library
A Study of the Mechanisms of Heat Treatment of Zirconium-Base Alloys : Status Report, July 1, 1955 - February 29, 1956
The kinetics of transformation of zirconium binary alloys is being pursued. Mechanical property variation as a function of transformation if also being investigated. Zirconium-tin and zirconium-titanium alloys transform very rapidly when quenched from the beta field. These alloys have, generally speaking, been demonstrated to be not amenable to heat treatment in the normal sense of the word. Eutectoid alloys, principally zirconium-molybdenum alloys, have shown a definite response to heat treatment in terms of mechanical property variation. An embrittling agent, probably "omega" phase, is suspect at this time for the brittleness observed in certain molybdenum alloys and the very high hardness levels reached in other alloys such as zirconium-niobium and zirconium-thorium. Work to establish the existence of omega phase is in progress and, it is hoped, suggestions for avoiding the brittle condition associated with it will be forthcoming.
Date:
March 15, 1956
Creator:
Domagala, R. F. & Levinson, David W.
Object Type:
Report
System:
The UNT Digital Library
Uranium Accumulation in Plants as an Indicator of Uranium Deposits in the Soil. Final Report
An alpha scintillation method for the analysis of uranium accumulation in plants as an indicator of uranium deposits in the soil was developed.
Date:
March 1, 1956
Creator:
Kurtz, Edwin B., Jr.
Object Type:
Report
System:
The UNT Digital Library
An Investigation of Scaling of Zirconium at Elevated Temperatures. Quarterly Status Report No. 11, December 2, 1955 to March 2, 1956
This technical report reports progress in the following areas: (1) Effect of scaling time; (2) Influence of specimen shape; (3) Effect of pretreatment; (4) Possible mechanism of growth; and (5) Future work.
Date:
March 13, 1956
Creator:
Barrett, C. A. & Evans, E. B.
Object Type:
Report
System:
The UNT Digital Library
Liquid Metal Level Instrument
Theory of operation and test results are given for a resistance type of liquid metal level instrument. The voltage across a steel rod in the tank is amplified by a magnetic amplifier and indicated by a milliammeter. Temperature compensation is provided for tank temperatures up to 1000 F.
Date:
March 18, 1952
Creator:
Robinson, H.; Dows, L. H. & Droms, C. R.
Object Type:
Report
System:
The UNT Digital Library
The Lindemann and Grüneisen Laws
The Lindemann assumption of direct contact of neighboring atoms at fusion is replaced by the criterion that melting occurs when the root-mean-square amplitude of thermal vibration reaches a critical fraction ρ, presumed the same for all isotropic monatomic solids, of the distance of separation of nearest-neighbor atoms. The Debye-Waller theory of the temperature dependence of the intensity of Bragg reflection of x-rays is used, without further assumptions, to derive a generalized Lindemann law. In contrast to the Lindemann form, all physical quantities involved in this formulation are evaluated at the fusion point, and departure of the average energy of an atomic oscillation from the equipartition value is taken into account by the quantization factor of the Debye-Waller theory. If the Grüneisen constant γm of the solid at fusion is evaluated by its definition from the Debye frequency of the solid, use of the generalized Lindemann law and Clapeyron's equation permits one to express γm in terms of the bulk modulus of the solid at melting and the latent heat and volume change of fusion. By means of Grüneisen's law applied to the solid at fusion, γm can be expressed likewise in terms of the corresponding bulk modulus, thermal expansion, volume, …
Date:
March 23, 1955
Creator:
Gilvarry, J. J. (John James), |1917-
Object Type:
Report
System:
The UNT Digital Library
Gas Plated Coatings on Metals and Alloys : Progress Report No. 1
The object of this project is to conduct studies on the coating of metals and alloys by the gas plating process. Coatings to be studied consist of chromium on copper; alloys of nickel chromium on copper; molybdenum on stainless steel and Inconel; chromium on stainless steel and Inconel; and tungsten and molybdenum and their carbides on stainless steel and Inconel.
Date:
March 11, 1953
Creator:
Nack, Herman & Whitacre, John R.
Object Type:
Report
System:
The UNT Digital Library
In-Reactor Autoclave Corrosion Studies II : Autoclave Z-19
In order to test the effect of chromate ion on the corrosion of Zircaloy-2 a 0.04 m uranyl sulfate solution (enriched) containing added acid, copper sulfate and 557 ppm Cr (VI) was autoclaved with rocking at 280 C for about eight days in the HB-5 facility of the LITR. The average corrosion rate established by the a rate of consumption of oxygen was 9.9 mpy at a power density of 4.9 w/ml. It is indicated by comparison with a previous corrosion study under LITR radiation that the presence of Cr (VI) had no significant effect on the radiation corrosion of Zircaloy-2 by enriched uranyl sulfate solutions. However, the data are not conclusive and may be interpreted as showing a low corrosion rate for a limited period (i.e. a short term inhibition) followed by a correspondingly rapid corrosion.
Date:
March 22, 1957
Creator:
Warren, K. S.; Davis, R. J. & Jenks, G. H. (Glenn Herbert), 1916-
Object Type:
Report
System:
The UNT Digital Library
Experiments on the Release of Fission Products from Molten Reactor Fuels
Experiments in the controlled melting of irradiated fuel specimens, particularly of the APPR, STR, and MTR types, have confirmed that prolonged heating in air at temperatures in excess of the melting point results in the release of a large portion of the radioactivity. On the other hand, a moderate amount of heating in air or steam sufficient only to melt a specimen results mainly in the partial volatilization of rare gases, iodine, bromine, cesium, and rubidium. In the presence of air or water vapor, strontium and other fission products are not released. At trace concentration of fission products, slow melting of the APPR plate at 1525 C in air or steam effected the release of 50% of the rare gases, 33% of the iodine, 9% of the cesium, and traces of strontium. After 25% burn-up, the cesium value increased to about 60%. Aluminum alloy of the MTR type, also at trace concentration, upon melting at 700 C released up to 2% of the iodine, 10% of the rare gases, and negligible portions of other fission products. Zirconium alloy of the STR type after 15% burn-up, when melted at 1850 C, released up to 95% of the rare gases, 90% of …
Date:
March 11, 1958
Creator:
Parker, George W. & Creek, George E.
Object Type:
Report
System:
The UNT Digital Library
Two Group Calculations for Flux Distribution and Critical Mass in Clean Cold ORR Cores
A series of two-group calculations has been made on the Oracle for the purpose of obtaining critical-mass and flux distribution data for various ORR core configurations. The 3G3R code of Bate, Einstein, and Kinney was used, together with the RSP code developed by Nelson. This made it possible to obtain results for the three-dimensional case. The results, which are presented graphically, are intended to serve as a guide for the design of experiments until such time as actual measurements are available. The calculations were performed for the "clean cold" case, and it should be realized that the presence in the core of experiments and of fission products built up during operation will materially alter the flux patterns found. It is believed that the critical-mass data are accurate to within 10%. Within the fuel region it is believed that the thermal-flux patterns are the also accurate to this degree. Comparison of the results with MTR critical experiments, however, indicates that the thermal flux in the reflector in the vicinity of the fuel-reflector interface may have been underestimated by a factor of as much as 1.3. It should also be recalled that in a two-group calculation the "fast flux" is often a …
Date:
March 11, 1958
Creator:
Binford, F. T.
Object Type:
Report
System:
The UNT Digital Library
Effects of Heat Treatment on Microstructure and Fabricability of 48 wt % Uranium - 52 wt % Aluminum Alloys
It has been reported in the literature that prolonged soaking of 16 wt & uranium-aluminum alloys at elevated temperatures induces a microstructural changed termed "conglobulation". this process is essentially a spheroidization of the UAl4 eutectic. Conclusions of the tests: (1) Extended soaking of 48 wt $ uranium-aluminum alloy billets at 600 C does not improve their hot-rolling characteristics. (2) Soaking periods of 50 hours and greater reduce the tensile and yield strengths of these alloys. (3) Soaking for 50 hours results in complete spheroidization of the eutectic in 48 wt % uranium-aluminum alloys.
Date:
March 15, 1957
Creator:
Thurber, William C.
Object Type:
Report
System:
The UNT Digital Library
Radiation Dose Received by Passengers and Crew on Planes Carrying the Maximum Number of Radiation Units
The dose of ionizing radiation received by passengers and crew members traveling on commercial airlines which transport radioisotopes is of interest to all persons who travel the airways frequently. Tariff regulations permit the air transport of 40 units of radioactive materials where one unit represents a quantity of radioisotopes which when packaged delivers a dose rate of one mr/hr at a distance of one meter from the center of the package. Using five different types of commercial aircraft, shipments of radioisotopes were simulated and dose levels determined at various locations in the aircraft under conditions normal to commercial travel. The survey indicates that the tariff regulations should be amended giving consideration to the type of aircraft involved.
Date:
March 1, 1957
Creator:
Davis, D. M.; Hart, J. C. & Warden, A. D.
Object Type:
Report
System:
The UNT Digital Library
Anisotropic Elastic Scattering of Neutrons
In an elastic collision the neutron loses part of its kinetic energy to the nucleus with both the kinetic and momentum of the system being conserved. However, for many elements the scattering is not isotropic in the center-of-mass system at the higher neutron energies. Many of the present reactor multigroup codes include anisotropic scattering at the high neutron energies, while many others assume isotropic scattering at all energies. In order to consider some of the effects of including anisotropic scatting, reference is made t the multigroup equation generally assumed for the slowing-down density.
Date:
March 21, 1957
Creator:
Copenhaver, C. M.
Object Type:
Report
System:
The UNT Digital Library
Compatibility Tests of Various Materials in Molten Sodium
Several compatibility test of various materials in contact in sodium under 500 psi pressure were conducted for 716 hr at 1500 F. Of the diffusion couples studies, the Inconel-beryllium system showed the largest amount al alloying. The reaction between molybdenum and beryllium resulted in the formation of two compounds, both of which were severely cracked in several areas. The molybdenum-INOR #8, and the INOR #8p type 316 stainless steel interfaces showed little if any alloying.
Date:
March 25, 1957
Creator:
Carlander, R. & Hoffman, E. E.
Object Type:
Report
System:
The UNT Digital Library
Source of Fission Products in LITR Cooling Water
A study has been made of the radioactive nuclides present in the cooling water of the Low Intensity Test Reactor. Prominent nuclides which have been identified include Np239 and certain fission products. The experimental evidence points to the probability that there could be adequate U235 contamination on the fuel plates to quantitatively account for the fission products identified in the LITR cooling water. inasmuch as new aluminum does not contain uranium, it must be assumed that the contamination occurs during the fabrication of the fuel elements.
Date:
March 26, 1957
Creator:
Moeller, D. W. (Dade W.) & Leddicotte, G. W.
Object Type:
Report
System:
The UNT Digital Library