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Trace elements investigations report
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242 Matching Results
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Irradiation Experiment on Aluminum Fuel Element Containing U$sub 3$O$sub 8$ Dispersion
None
Date:
July 15, 1957
Creator:
Beaver, R. J.
Object Type:
Report
System:
The UNT Digital Library
Irradiation Experiment on Aluminum Fuel Plates Containing a 48 Wt. % Uranium-3 Wt. % Silicon-49 Wt. % Aluminum Alloy with 20% Enrichment in the U-235 Isotope
None
Date:
July 17, 1957
Creator:
Beaver, R. J.
Object Type:
Report
System:
The UNT Digital Library
Irradiation of Wrought Uranium Plate
From abstract: "Wrought uranium plate, clad in 1100 aluminum with a nickel bonding layer, was irradiated to a maximum exposure of 1600 MWD/T in the MTR and was demonstrated to be suitable as a fuel element material. Beta-transformed plate, or beta-transformed plate that was cold stretched 2-1/4 per cent, did not change appreciably in dimensions but roughened on the surface. As-rolled plate increased in length, but did not roughen. Irradiation reduced the strength and virtually eliminated the ductility of the plate. Abrasion of the cladding caused corrosion pitting. The strength of the nickel diffusion bond between core and cladding was unimpaired by the irradiation."
Date:
July 1957
Creator:
McDonell, William R. & Marshall, Robert P.
Object Type:
Report
System:
The UNT Digital Library
Irradiation Processing Department monthly record report, June 1957
This document details activities of the irradiation processing department during the month of June 1957. A general summary is included at the start of the report, after which the report is divided into the following sections: research and engineering operations; production and reactor operations; facilities engineering operation; employee relations operation; and financial operation.
Date:
July 19, 1957
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Limited heat-transfer, drag, and stability results from an investigation at Mach numbers up to 9 of a large rocket-propelled 10 degree cone
Report presenting information on the heat transfer, drag, and stability of a large rocket-propelled 10 degree cone in a flight test. The location of turbulent flow was noted and the measured drag coefficients at several locations on the cone are provided.
Date:
July 22, 1957
Creator:
Hall, James R. & Speegle, Katherine C.
Object Type:
Report
System:
The UNT Digital Library
Liquid Metal Fuel Reactor Experiment Monthly Progress Statement: July, 1957
A monthly report summarizing work perform by Babcock & Wilcox personnel for the U.S. Atomic Energy Commission. In this months report includes specifications a utility loop, further calculations for fuel rods, drawings were reviewed and specifications for the core reactor were reviewed.
Date:
July 1957
Creator:
Babcock & Wilcox Company
Object Type:
Report
System:
The UNT Digital Library
Liquid Metal Reactor Experiment Preliminary Hazards Evaluation, July 1957
Report containing descriptions of the Liquid Metal Fuel Reactor Experiment's reactor, containment, and plant design. Includes analyses of associated environmental hazards.
Date:
July 1957
Creator:
Babcock & Wilcox Company
Object Type:
Report
System:
The UNT Digital Library
Local Heat Transfer to Blunt Noses at High Supersonic Speeds
Memorandum presenting a brief summary of the recent theoretical and experimental work on local heat-transfer rates on blunt-nose bodies. Results regarding the calculation of local flow conditions, prediction of stagnation-point heating rates, and calculation of heating rates over entire nose are provided.
Date:
July 12, 1957
Creator:
Stoney, William E., Jr.
Object Type:
Report
System:
The UNT Digital Library
Low Cross-Section Iron-Base Alloys
Data are presented on the mechanical properties of iron-silicon and iron- aluminum alloys in the range 0 to 14% Si and about 8% aluminum. The effect of third elements on ductility is discussed, and data are prcsented which indicate that it is not possible to obtain a disordered structure in Fe--Si a1loys from 8 to 14% Si. It is concluded that alloys of iron with 6 to 8% aluminum offer a promising base composition for development of low neutron cross section alloys for use in nuclear reactors. (auth)
Date:
July 1, 1957
Creator:
Lillie, D.W.
Object Type:
Report
System:
The UNT Digital Library
The Luminescence of Chlorophyll-Containing Plant Material
The luminescence of various chlorophyll-containing plant materials has been investigated under a variety of conditions. The results have been shown to be consistent with a mechanism involving the recombination of electrons and holes trapped in a quasi-crystalline lattice. Some details of such a mechanism have been proposed which suggest the mode of entry of the light energy into the photosynthetic pathway.
Date:
July 1, 1957
Creator:
Tollin, Gordon & Calvin, Melvin
Object Type:
Report
System:
The UNT Digital Library
Manual of Radiation Protection Standards
"The following is an alphabetical listing of terms and units in common usage at HAPO. Other terms and definitions may be added as the need becomes apparent or as revisions or additional terms are issued by the NCRP and ICRP."
Date:
July 1957
Creator:
General Electric Company
Object Type:
Report
System:
The UNT Digital Library
MASS TRANSFER IN A CONTINUOUS-FLOW MIXING VESSEL
None
Date:
July 1, 1957
Creator:
Trice, V.G. Jr.
Object Type:
Report
System:
The UNT Digital Library
Mineralogy, Internal Structural and Textural Characteristics, and Paragenesis of Uranium-Bearing Veins in the United States
From introduction: The purpose of this paper is to summarize and review some of the recent mineralogic information relevant to uranium-bearing veins in the United States, as well as to describe some of the reported mineralogic associations and the modes of occurrence of the uranium minerals in vein deposits.
Date:
July 1957
Creator:
Walker, George Walton & Adams, John W.
Object Type:
Report
System:
The UNT Digital Library
Mineralogy, Internal Structural and Textural Characteristics, and Paragenesis of Uranium-Bearing Veins in the United States
The following report summarizes and reviews some of the recent [1957] mineralogic information relevant to uranium-bearing veins in the United States, as well as describing some of the reported mineralogic associations and the modes of occurrence of the uranium minerals in vein deposits. This paper is a chapter of a larger and more comprehensive report entitled, "Geology of Uranium-Bearing Vein Deposits in the United States".
Date:
July 1957
Creator:
Walker, George W. & Adams, John W.
Object Type:
Report
System:
The UNT Digital Library
The minimization of wave drag for wings and bodies with given base area or volume
"The minimization of wave drag for thin aerodynamic shapes carrying no lift is studied for conditions under which either base area or volume is specified. When volume alone is given, the analysis is limited to shapes with straight trailing edges normal to the stream direction. The problem of minimization is reduced to one of finding a two-dimensional harmonic function with known boundary conditions" (p. 1).
Date:
July 1957
Creator:
Heaslet, Max A.
Object Type:
Report
System:
The UNT Digital Library
National Motor-Gasoline Survey: Winter 1956-57
Report issued by the U.S. Bureau of Mines discussing surveys conducted on the motor gasoline sold during the winter of 1956-1957. The amount, location, and price of gasoline sold during this time are presented. This report includes tables, illustrations, and a map.
Date:
July 1957
Creator:
Blade, O. C.
Object Type:
Report
System:
The UNT Digital Library
A Neutron Absorption Alignment Chart
From introduction: "Neutron absorption alignment chart for the measurement of neutron flux density."
Date:
July 30, 1957
Creator:
Nisle, Robert G.
Object Type:
Report
System:
The UNT Digital Library
NEUTRON AND PHOTON TRANSPORT: PLANE, CYLINDER, SPHERE (DIGITAL COMPUTER PROGRAMS)
Digital comnputer Program S constructs neutron and proton transport theory solutions having plane, cylindrical, or spherical symmetry. Lattice detail in geometry, energy, and momentum-angles is flexibleAnisotropic scattering- transfer is neglected. For aircraft nuclear propulsion applications, the initial version of the program developed as the Los Alamos SNG Neutron Code has been generalized to include the effects of time-delayed neutron or photon production and to provide the flux adjoint. The input consists of geometry, material concentrations, collision cross sections, scattering-transfer cross sections, fission multiplication cross sections, inverse period Laplace-timetransform of fission production spectra, and Laplacetime-transform of fixed source distribution. The output includes resctivity, critical size, flux distribution, adjoint distribution, and power distribution. (auth)
Date:
July 31, 1957
Creator:
Duane, B.H.
Object Type:
Report
System:
The UNT Digital Library
Noise survey of a full-scale supersonic turbine-driven propeller under static conditions
Report presenting an analysis of the overall sound-pressure levels and frequency spectra of the noise emitted from a full-scale, 7.2-foot-diameter, 3500-rpm, three-blade, supersonic propeller mounted on a turbine-powered airplane under static conditions at stations about the propeller at a 100-foot radius. Variations in power produced the variations in overall sound-pressure levels predicted by theory.
Date:
July 1957
Creator:
Kurbjun, Max C.
Object Type:
Report
System:
The UNT Digital Library
Notes on a Large-Scale Statistical Program for the Establishment of Maneuver-Loads Design Criteria for Military Airplanes
Report presenting an outline of a proposed statistical program to collect data for the establishment of more realistic maneuver-loads design criteria. Some sample experimental data are also included to indicate possible methods of statistical analysis and the potential sample size needed for the program.
Date:
July 17, 1957
Creator:
Mayer, John P.; Stone, Ralph W., Jr. & Hamer, Harold A.
Object Type:
Report
System:
The UNT Digital Library
Notes on the A-2-Compiler System
"An account is given of an extensive study of the A-2 Compiler System for the Remington Rand Univac digital computer. In particular, the following topics are discussed: application and performance of subroutines, segmenting, and introduction of subroutines to the library."
Date:
July 15, 1957
Creator:
Lanza, G. &
Object Type:
Report
System:
The UNT Digital Library
NUCLEAR COMPUTATIONS FOR HRE-3 DESIGN: EQUILIBRIUM RESULTS
None
Date:
July 10, 1957
Creator:
Rosenthal, M.W. & Fowler, T.B.
Object Type:
Report
System:
The UNT Digital Library
Nuclear Computations for HRE-3 Design : Equilibrium Results
Various nuclear characteristics of two-region spherical homogeneous reactors have been computed in order to provide information for the design of HRE-3. Equilibrium isotope concentrations were established using an ORACLE code, and a two-group model was used to obtain critical concentrations and flux distributions. Breeding ratio is plotted as a function of reactor size, blanket thorium concentration, and other design and operating parameters, and the time required for a demonstration breeding is discussed. Tables of results, including neutron balances, are given for selected reactors. a number or relations are presented for estimating the effects of fission products, copper, corrosion products, H2O, and the core tank on breeding ratio.
Date:
July 10, 1957
Creator:
Rosenthal, M. W. & Fowler, T. B.
Object Type:
Report
System:
The UNT Digital Library
Nuclear Decay Schemes in the Actinium Family
Abstract: "With magnetic alpha-particle and electron high-resolution spectrographs and scintillation gamma-ray spectrometers, a study was made of the nuclear decay of a number of members of the actinium family - U-235, Th-227, Ra-223, Em-219, Po-215, and Bi-211. Decay schemes are presented for each of these nuclides, together with such correlations as are possible with present theoretical nuclear models. The decay scheme of U-235 and a portion of that of Th-227 are interpretable in terms of the collective model and a spherical shell-model characteristics; however, the intermediate nuclides present complexities not well understood."
Date:
July 1957
Creator:
Pilger, Richard Christian, Jr.
Object Type:
Report
System:
The UNT Digital Library