UNT Libraries Government Documents Department - 1,258 Matching Results

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2, 5-Diaryloxazoles1

Description: In an attempt to find solutes both more efficient and more soluble than p-terphetryl, a series of compounds related to 2,5-diphenyloxazole has been synthesized. Results of physical testing will be reported elsewhere.
Date: June 4, 1952
Creator: Hayes, F. N. & Rogers, Betty
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D-10 Timer

Description: The D-10 timer is designed to operate directly on a negative voltage step and, despite its simple circuitry, is capable of producing extremely accurate time delays.
Date: April 16, 1957
Creator: Creveling, R.
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14-Year 113Cd

Description: The half lives of Cd/sup 113m/ and Cd/sup 115m/ have been redetermined to be 14 sintering time 2 years and 44.2 sintering time 0.5 days, respectively. The ratio of Cd/sup 113m/Cd/sup 115m/ yields from thermal-neutron fission of U/sup 235/ is 0.27 sintering time 0.03, and the ratio of (n, ) formation cross sections is 0.31 sintering time 0.03. Combination of these ratios with literature values for the Cd/sup 115m/ fission yield and (n, ) formation cross section gives (1.9 sintering time 0.2) x 1… more
Date: October 31, 1959
Creator: Wahl, Arthur C.
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A 704 Program for Computing Thermal Neutron Spectra in Infinite Homogenous Media

Description: A flexible program has been prepared for solution of the neutron balance equation in an infinite homogeneous medium. This program is specifically designed for studying the effects of varying the energy transfer kernel on the resultant neutron spectrum. A rapidly converging iterative procedure is employed. The equation to be solved and the specific input information required by the program in order to compute spectra are explicitly stated. No discussion of the physics of the problem is given.
Date: November 24, 1958
Creator: Nelkin, M S.
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1B Boiler Heat Exchanger Tilt Test

Description: "Performance and reliability of the PWR plant and core were determined under normal and steady-state conditions at ~ 60 Mw net electrical output. During operation there were two safety shutdowns, one planned shutdown and one safety insertion. The plant operated the first 275 hr without a significant core flux tilt occurring. During the next 460 hr numerous core flux oscillations occurred, and six of the oscillations required suppression using the control rods. No significant flux oscillations o… more
Date: unknown
Creator: Duquesne Light Company
open access

Absorption Of Liquid HTO And RTO Vapor Through The Skin Of Man

Description: Experiments reported in this paper were undertaken to determine the rate at which HTO passes through the skin into the body of man when he is exposed to an atmosphere containing HTO and when he is exposed to liquid HTO applied to the surface of the skin. From such information it is possible to determine the radiation exposure hazard presented by skin absorption of tritium water and to relate it to the hazard relating to other routes of entry, such as through the lungs.
Date: June 1952
Creator: Pinson, Ernest A.
open access

Absorption of Organic Acids on Thoria

Description: The adsorption of acetic and oleic acids on the surface of thoria was studied by means of infrared spectroscopy. An infrared analysis of the adsorbates before and after adsorption using differential double bean methods indicated that the adsorption of organic acids on thoria surfaces occurs by an esterification reaction between the organic acid and the hydroxylated thoria surface. Ammonia vapor will not adsorb on thoria, indicated the basic character of the hydroxylated surface.
Date: December 31, 1959
Creator: Bradford, Harold R. & Wadsworth, Milton E.
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Absorption of Radionuclides Applied to Above Ground Plant Parts : Terminal Report

Description: The attached list of publications is submitted as a year to year and final report of progress on work accomplished under Contract AT(11-1)-159 from 1950 to 1959. Work was initiated on this project in the spring of 1950 and is still in progress as of the date of this report.
Date: 1959
Creator: Wittwer, S. H. (Sylvan Harold), 1917-2012; Turkey, H. G. & Bukovac, M. J.
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Absorption of Radionuclides Through the Above-Ground Parts of Plants, With Special Reference to Products of Nuclear Fission

Description: "The above ground, or aerial, parts of plants were found to absorb radionuclides readily from external spray applications. Entry through leaves, stems, fruit, and bark were demonstrated. The rate of absorption, extent of subsequent transport, and pattern of distribution within the plant was found to be dependent upon the nature of the radionuclide and many internal and external factors. These factors are discussed. It is concluded that the above ground parts of plants can absorb radionuclides w… more
Date: unknown
Creator: Tukey, H. B.; Wittwer, S. H.; Long, W. G. & Teubner, F. G.
open access

Abstract Bibliography on Linear Accelerators (December, 1928 to December, 1957) (Excluding Van de Graaff Generators and Cockcroft-Walton Accelerators)

Description: This list does not claim to be either an exhaustive or critical compilation. Sources consulted: Science Abstracts A, January, 1940 to December 1957; Science Abstracts B, January, 1940 to December 1957; Reports on Progress in Physics, Volume III, 1948-1949, pages 102-132 (preview article)
Date: March 21, 1958
Creator: Malmberg, Carol
open access

Acid-Base Exchange Reactions In Liquid Hydrogen Sulfide

Description: The tracer S35 has been used to study the rate of exchange between the solvent liquid hydrogen sulfide and the three solutes, sulfur, arsenic trisulfide, and phosphorus pentasulfide, the first exchange being investigated with and without triethylamine, the last two both with added amine only.
Date: unknown
Creator: Norris, T. H. & Smith, Robert C.
open access

Action of Maleic Hydrazide on Paramecium Aurelia

Description: This brief report demonstrates findings related to the effects of maleic hydrazide (MH) on Paramecium aurelia. Using methods that should reveal lethal chromosomal aberrations occurring in the micronucleus, researchers determine they are unable to demonstrate any deleterious genetic effect of the compound in concentrations non-lethal to the cell. The methods used were those employed in the investigation of mutations induced by radiations and by nitrogen mustards. Figure demonstrates effect of ma… more
Date: July 31, 1951
Creator: Powers, E. L. & Ehret, C. F.
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Activities in Liquid and Solid Metal Systems

Description: "Brief summaries of the experimental work being done on the phase distribution in Fe -Ni-Pb, Fe-Ni-Pb-C, and Fe-Ni-C systems at 1350 to 1550 C are presented. In addition, activities in the Al-Ag-Pb, Mn-Fe, and Ma-Fe-Pb systems at 700 to llO0 C were investigated. Results are represented graphically."
Date: unknown
Creator: Elliott, John F.
open access

Adapter Assembly System

Description: The development of an improved adapter assembly system, designed primarily for use with AN multiconductor connectors is described. The capabilities of the standard assemblies and some special applications of the system are outlined.
Date: May 3, 1957
Creator: Maguire, N. L. & Parry, R. K.
open access

The Adsorption of He3 and He4 on Activated Charcoal

Description: The adsorption on activated charcoal of pure He3 at 2.5 and 3°K, and of pure He4 at 4°K has been measured. The volume of gas necessary to form a monolayer is approximately the same for the two isotopes. It is shown that capillary condensation does not occur in this adsorbent at low saturations. The data have been analyzed by a number of methods with consistent results.
Date: 1956
Creator: Hoffman, C. J.; Edeskuty, F. J. & Hammel, Edward F. (Edward Frederick), 1918-
open access

An Aerodynamic Raindrop Sorter. Technical Progress Report No. 1.

Description: A pilot model of an Aerodynamic Raindrop Sorter was constructed along the lines suggested by mathematical analysis. The function of the analyzer is to sort natural rain according to drop size and to collect the sorted drops for further analysis. The pilot model, a small wind tunnel inclined at 45 deg to the horizontal, demonstrated the feasibility of aerodynamic rain drop sorting over a wide range of drop sizes. (auth)
Date: January 1960
Creator: Dingle, A. Nelson & Brock, Fred V.
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Aerosol Collection by Wetted Fiberglass Media

Description: A wet collection system for aerosols has been developed using fibrous media. Tests show the performance to be in accord with recently developed theory of collection by fibrous media. The effects of varying aerosol particle size, particle density, and gas velocity have indicated that inertial impaction is the primary collection mechanism. Three-year operating experience on several full scale plant installations shows reliable performance.
Date: April 28, 1954
Creator: Leary, Joseph A.; Clark, Robert A.; Hammond, R. Philip & Leopold, Charles S.
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