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Diffusion of Slow Electrons in Gases

Description: The properties of electrons in a gas and an external electric field, e.g., agitation velocity, free path, energy lost per collision, and collision cross sections, were determined for electrons of energy less than 2 ev in a large number of gases. The computations were made from previously measured values for Townsend's energy factor or the ratio of electron agitation energy to molecule thermal energy. Results are presented for hydrogen, nitrogen, carbon dioxide, methane, ethylene, cyclopropane, … more
Date: October 24, 1961
Creator: Forester, D. W. & Cochran, L. W.
Partner: UNT Libraries Government Documents Department
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Transient Temperature Distributions in a Thermally Orthotropic Plate With Non-Uniform Surface Heating

Description: ent temperature variation in a thermally orthotropic plate which is subjected to an arbitrary heating rate distribution along one face with all other surfaces being insulated. Dimensionless temperature histories and distributions determined from this solution are presented for the special, but representative, case of a linearly varying heating rate distribution on plates with varying degrees of thermal orthotropy. These results establish quantitatively the value of a material with high planar a… more
Date: June 1, 1961
Creator: Hornbaker, David Ross
Partner: UNT Libraries Government Documents Department
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The Specific Heat of Dysprosium Metal Between 0.4 and 4 K

Description: Submitted to Illinois Inst. of Tech., Chicago. A He/sup 3/ cryostat was built to measure the specific heat of rare earth metals which have a component, at low temperatures, attributable to the electrons in the incomplete 4f shell. The specific heat of dysprosium from 0.4 to 4.2 deg K was measured. Pertinent theories about specific heats are outlined. The apparatus included the cryostat, vacuum and He/sup 3/ systems, calorimeter, carbon thermometer, heater, and magnetic thermometer. The experime… more
Date: August 1, 1962
Creator: Guenther, R. A.
Partner: UNT Libraries Government Documents Department
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Dynamic Simulation of Multi-Pass Pressurized Water Nuclear Power Plants by Analog Computer Techniques

Description: A kinetic model of the primary loop of a multi-pass pressurized water reactor power plant is developed to evaluate, by analog computer techniques, the transient response characteristics under conditions of steam generator load and reactor control rod perturbations. Using the 2-pass 28 Mw(t) SM-2 reactor as a typical plant, transient behavior patterns are illustrated and examined for a variety of load inputs, variations in plant constants, and analog model simplifications. (auth)
Date: June 1, 1961
Creator: Brondel, J. O.
Partner: UNT Libraries Government Documents Department
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Solid State Neutron Detectors

Description: No Description Available.
Date: May 1, 1961
Creator: Murphy, J. F.
Partner: UNT Libraries Government Documents Department
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The Moderation of Neutrons in Non-Multiplying Infinite Homogeneous Media.

Description: Submitted to Univ. of Minnesota, Minneapolis. The gas model of neutron thermalization for a general moderator mass was studied by formulating the thermalization process as an integral equation. The relation of the model to the slowing-down theory was investigated. A discussion of the theory of scattering cross sections for neutrons is presented. The Wigner-Wilkins model was considered for moderator atoms of the same mass as the neutron. The analysis was extended to the case of a gaseous moderat… more
Date: January 1, 1962
Creator: Min, K.
Partner: UNT Libraries Government Documents Department
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The Angular Distribution of Fission Fragments From the Fast Neutron-Induced Fission of U-234

Description: Submitted to Univ. of Tennessee, Knoxville. The fast neutron-induced fission cross section of U/sup 234/ was measured from threshold to 4-Mev neutron energy. A maximum of 1.26 barns was found at 850 kev followed by a minimum of 1.10 barns at 8050 kev. The angular ani-sotropy of the fragment distribution was measured for neutron energies from 400 kev to 4 Mev. Extrema in the ratio sigma /sub f//( sigma /sub f(90 deg ) were found at 500, 850, and 1050 kev; the distribution at 500 kev showing a ma… more
Date: August 27, 1962
Creator: Lamphere, R. W.
Partner: UNT Libraries Government Documents Department
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An Instrument to Determine whether Certain Fundamental Philosophical and Educational Beliefs Are Held by Selected Public School Teachers in the Areas of Elementary Education, Secondary Education, and Guidance

Description: The problem of this study was to develop an instrument which would reveal whether certain fundamental philosophical and educational beliefs are held by public school teachers in the areas of elementary education, secondary education, and guidance.
Date: January 1968
Creator: Thomas, Neil Eugene
Partner: UNT Libraries
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Woodrow Wilson in the Council of Four: A Re-Evaluation

Description: It was Woodrow Wilson who played the dominant role in the Council of Four. With his dedication to the vague, often contradictory Fourteen Points, and with the power of the office of President of the United States supporting him, he determined the very nature of the treaty. Wilson's use, and misuse, of his influence over his colleagues makes him responsible for much of the final form of the Treaty of Versailles.
Date: January 1965
Creator: Brown, Dora M.
Partner: UNT Libraries
open access

Discontinuous Thermal Expansions and Phase Transformations in Crystals at Higher Temperatures

Description: The purpose of this investigation is to make more detailed studies of transformations. Fourteen compounds have been examined by high temperature X-ray diffraction for this purpose. The investigations have been carried out in such a way as to reveal: 1. the existence of transformations, 2. the influence of polarizability on thermal expansion, 3. the anisotropy of expansion, and 4. the discontinuity of thermal expansion.
Date: 1967
Creator: Hsu, Yuan Tsun
Partner: UNT Libraries
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Music and its Relation to Futurism, Cubism, Dadaism, and Surrealism, 1905 to 1950

Description: Inasmuch as this investigator can determine, no major study has been done concerning music's relation to the "isms" selected for this discussion. The contemporary interest in the movements themselves has been so widespread that the documentation of them, in scattered accounts, is enormous. It is disappointing that these records provide little or no information about the musical aspects of the movements; the graphic and literary accounts, on the other hand, have been accorded generous treatments… more
Date: January 1969
Creator: Greer, Thomas H. (Thomas Henry), 1916-
Partner: UNT Libraries
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Three Recitals of Music by German and Danish Composers, J.S. Bach, and Contemporary North American Composers, and a Lecture Recital on the Registration of Orchestral Textures in Organ Music

Description: Four contrasting recitals were presented to fulfill the requirements for the degree Doctor of Musical Arts. The first recital contained music of miscellaneous composers. Two Preludes and Fugues by the North German Baroque composers Vincent Libeck and Dietrich Buxtehude were separated by Samuel Scheidt's Variations on the Netherlands folk song "Ach du feiner Reiter". The Brahms Chorale Prelude "0 wie selig seid ihr doch, ihr Frommen" and the Louis Vierne "Intermezzo" from the Third Symphony repr… more
Date: August 1969
Creator: Haller, William P. (William Paul)
Partner: UNT Libraries
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Behavioral Outcomes of Client-Centered Play Therapy

Description: This study was concerned with determining the effectiveness of play therapy as measured by behavioral changes in interpersonal relationships, mature behavior patterns, and more adequate use of intellectual capacities. Client-centered play therapy appears to have grown out of the concept that it is the relationship between the therapist and the child that brings about change and growth. Rather than diagnostic or as preliminary to therapy, the relationship itself is seen as therapy. Problems are … more
Date: May 1969
Creator: Herd, Ruby H. (Ruby Helm)
Partner: UNT Libraries
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