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An Experimental Investigation of Two-Phase, Two-Component Flow in a Horizontal, Converging-Diverging Nozzle

Description: A discussion is presented of an investigation of the flow characteristics in a horizontal, converging-diverging nozzle for a two-phase, air- water system. The primary consideration, to determine the effects of accelerating the liquid phase by the gaseous phase, was measured in terms of nozzle exit water velocity, exit slip ratio, and exit acceleration factor. A gamma-ray-attenuation technique was used to determine these values by determining the average cross-sectional void fraction, the ratio … more
Date: July 1, 1963
Creator: Vogrin, J. A., Jr.
Partner: UNT Libraries Government Documents Department
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Mutual Charge Neutralization of Gaseous Ions

Description: The problem of the bimolecular rate constant, alpha , for the mutual charge neutralization reaction (ion-ion recombination) for ions formed by the vacuum ultraviolet photolysis of nitric oxide is considered. The pressure dependence of alpha over a pressure range of 10 to 600 torr for mixtures of a few hundred microns of NO with He, Ar, Kr, Xe, H/sub 2/, D/sub 2/, and N/sub 2/ was measured. From the low-pressure limit of alpha , the rate constant for charge neutralization in the absence of a thi… more
Date: July 11, 1963
Creator: Person, J. C.
Partner: UNT Libraries Government Documents Department
open access

Analysis of Current Distribution in Electrolytic Cells With Flowing Mercury Cathodes

Description: An idealized model is postulated embodying the essential features of industrial caustic-chlorine cells with horizontal flowing-mercury cathodes. This model is examined in detail, and relations expressing the local anode potential, cathode potential, and ohmic potential drop in the electrolyte in terms of local current density and other parameters are established. These relations are combined to give a system of equations relating current density at any location along the cell to applied total p… more
Date: July 19, 1960
Creator: Grens, E. A., II
Partner: UNT Libraries Government Documents Department
open access

Sonata for Two Pianos

Description: The Sonata for Two Pianos, eighteen in duration, is in the form of a large arch. The arch is constructed by relating the last movement to the second and first movements by borrowing material from these movements. The resulting form is a large ABA comprising the entire composition. The arch is superimposed over a more traditional formal concept of sonata. A sonata-allegro form is distinguishable in the first movement, a fantasia-variations in the second, and a modified sonata-allegro in the fin… more
Date: July 1966
Creator: Calhoon, William H. (William Henry), 1937-
Partner: UNT Libraries
open access

The Teaching Practices of Science Teachers in Selected Texas High Schools

Description: The problem of this study was to determine the emphasis placed on various science teaching practices by a random sample of high school biology, chemistry, and physics teachers in selected Texas high schools. The subproblem was to compare the emphasis placed on the practices as reported by the high school teachers with the emphasis as recommended by national science education specialists, teachers of biology, chemistry, and physics in selected Texas colleges and universities, and teachers of pro… more
Date: July 1967
Creator: Pewitt, Edith Marie Hendrix
Partner: UNT Libraries
open access

An Analytical Critique of the Use of Twelve Equal Tones as Utilized in "Sonata-Fantasia" by George Rochberg

Description: This thesis centers around a certain twentieth-century compositionaI device, the method of composition with twelve tones. There are many terms to designate this device, for example: "basic set," "tone-row," "note-series," "serialism," "serial technique," "twelve-note series," "twelve-tone technique" or "twelve-tone method." TI is thesis is a methodical research demonstrating the contemporary conventional way of scientifically and artfully manipulating twelve equal tempered degrees of the chroma… more
Date: July 1968
Creator: Tiroff, Philip Knight
Partner: UNT Libraries
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