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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
open access

A Theoretical Study of the Transient Operation and Stability of Two-Phase Natural Circulation Loops

Description: Mathematical models of the time-dependent behavior of two-phase natural- circulation loops were used to predict the operation and to explain the unusual instability sometimes observed. The initial results obtained for a loop similar to the Univ. of Minnesota loop were used to formulate a more complex and accurate model, and the predicted transient behavior was in close agreement with the experimental results from the Minnesota loop. For a 300psia, high-pressure loop, unstable oscillatory behavi… more
Date: June 1, 1961
Creator: Garlid, K.; Amundson, N. R. & Isbin, H. S.
Partner: UNT Libraries Government Documents Department
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Americium and plutonium in water, biota, and sediment from the central Oregon coast

Description: Plutonium-239, 240 and americium-241 were measured in the mussel Mytilus californianus from the region of Coos Bay, OR. The flesh of this species has a plutonium concentration of about 90 fCi/kg, and an Am-241/Pu-239, 240 ratio that is high relative to mixed fallout, ranging between two and three. Transuranic concentrations in sediment, unfiltered water, and filterable particulates were also measured; none of these materials has an Am/Pu ratio as greatly elevated as the mussels, and there is no… more
Date: June 1, 1982
Creator: Nielsen, R. D.
Partner: UNT Libraries Government Documents Department
open access

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
open access

Dislocation morphology in deformed and irradiated niobium. [Neutron irradiation]

Description: Niobium foils of moderate purity were examined for the morphology of dislocations or defect clusters in the deformed or neutron-irradiated state by transmission electron microscopy. New evidence has been found for the dissociation of screw dislocations into partials on the (211) slip plane according to the Crussard mechanism: (a/2) (111) ..-->.. (a/3) (111) + (a/6) (111).
Date: June 1, 1977
Creator: Chang, C. P.
Partner: UNT Libraries Government Documents Department
open access

Photoexcitation in Superconductors

Description: Dissertation discussing the results of experiments to study the behavior of superconductors under light illumination.
Date: June 1976
Creator: Schuller, Ivan
Partner: UNT Libraries Government Documents Department
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Differences in Student and Faculty Attitudes toward Physical Activity

Description: The problem was to identify the differences in attitudes toward physical activity of students and faculty within a health, physical education, and recreation professional preparation program.
Date: June 1973
Creator: Judkins, Cleetis Wilburn
Partner: UNT Libraries
open access

Texas Public School Library Media Specialists' Perceptions of the Use of the Internet in their Schools

Description: With the advent of the 21st century, technological innovations are transforming the face of education and the school library media center. One of these significant developments is the ability to communicate through the Internet. The purpose of this study is to examine the perceptions of Texas public school library media specialists who are active Internet users about their utilization of the Internet, and how their efforts in implementing and supervising Internet access in their school library … more
Date: June 1997
Creator: Bruns, Loretta A. (Loretta Ann)
Partner: UNT Libraries
open access

A Study of Soil Erosion and its Control in the United States with Special Reference to Texas

Description: A study of soil erosion in the United States, especially in Texas, which brings attention to the causes of soil erosion under the existing system of farm management. The material gathered and compiled and arranged under certail main heading. Two chapters deal with present and immediate causes of erosions and their results. One full chapter takes up the history of the conservation movement and attempts to show how slow Texans have been in comparison with some of the other states of the United St… more
Date: June 1939
Creator: Merrell, Jesse Byron
Partner: UNT Libraries
open access

To Determine Whether or Not the Colleges of Texas are Preparing their Students of Industrial Arts to Teach Effectively in the High Schools of Texas

Description: This is a study to determine whether the colleges of Texas are preparing their students of industrial arts to teach effectively in the high schools of Texas. The objectives of this study are to draw conclusions as to whether or not the colleges of Texas are preparing their students of industrial arts to teach effectively in the modern high schools; to show the training of industrial arts teachers; and to determine to what extent industrial arts are offered in the high schools of Texas.
Date: June 1939
Creator: Farmer, Joe Harold
Partner: UNT Libraries
open access

A Survey of the Physical Education Programs for Girls in the Affiliated Schools within a Radius of Sixty Miles of Denton Texas

Description: A survey of the physical education programs for high school girls near Denton, Texas to determine the extent of compliance with state law for physical education, the facilities for the program, training of the teachers, type of physical education program, and teaching load of physical education teachers.
Date: June 1939
Creator: Morriss, May
Partner: UNT Libraries
open access

Legal Status of Labor in Great Britain and the United States

Description: An investigation of the legal status of labor in Great Britain and the United States. The basis of labor legislation is considered, and the development of labor legislation traced in both countries. A comparison of the legal status of labor at the present time in both countries is made. - Abstract
Date: June 1939
Creator: Richardson, Addran Dee
Partner: UNT Libraries
open access

A Comparison of the Linguistic Competence of Learning Disabled and Emotionally Disturbed Pupils

Description: The problem of this investigation was to compare the linguistic competence of learning disabled and emotionally disturbed pupils by means of two performance tasks. Sixty subjects, seven-and-eight-year old monolingual public and private school pupils, were assigned to three groups of twenty subjects each, learning disabled, emotionally disturbed and normally achieving children. The majority of those in the learning disabled and the normally achieving groups were from middle-class families, with … more
Date: June 1981
Creator: Hook, Pauline Pepper
Partner: UNT Libraries
open access

An Analysis of the Problem of the Insecurity of Children

Description: This study is an attempt to find causes and indications of insecurity in elementary school children. Possible solutions and ways to increase security are also explored.
Date: June 1939
Creator: Little, Edith
Partner: UNT Libraries
open access

Interpersonal Reactions to Bereaved Parents: An Exploration of Attachment and Interpersonal Theories

Description: The experiment examined negative social reactions to bereaved parents from unrelated others. Both the behavior displayed by the parent and attachment style of the perceiver were expected to influence reactions to bereaved parents. Undergraduates at a southern university (N = 239) completed both attachment measures and measures of reactions to videotapes of bereaved parents. Results indicated that bereaved parents do indeed receive negative evaluations from unrelated others, in the form of decre… more
Date: June 1990
Creator: Wilhite, Thomas R. (Thomas Ray)
Partner: UNT Libraries
open access

Correlational Study of the UNT Neuropsych-Screen, the MMPI and Time among Chronic Pain Patients

Description: Although many theorists have speculated that chronic pain may be linked to some sort of central neuropsychological integration deficit, a review of the current literature reveals no empirical support for this theory. This study attempts to assess the severity, if any, of neuropsychological deficits in chronic pain subjects by using a neuropsychological screen developed at the University of North Texas. Also, presented are studies of correlations between the UNT Neuropsych-screen and the MMPI. t… more
Date: June 1989
Creator: Smith, Russell Joseph
Partner: UNT Libraries
open access

An Attempt to Produce a High Octane Gasoline from C4 Hydrocarbons

Description: This thesis presents the results of an experiment conducted to discover if selenic acid or monazite sand are possible catalysts that can be used for the alkylation of isobutane and isobutene.
Date: June 1939
Creator: Scott, Howard Winfred
Partner: UNT Libraries
open access

Evaluation of School Units that Affected the Community

Description: This study examines a change from traditional to modern teaching in the Denton, Texas public schools. Issues faced by adminitation and teachers in three examined elementary schools provide information about the implementation of a plan focused on the particular needs of children in the community.
Date: June 1939
Creator: Yarbrough, James Lafayette
Partner: UNT Libraries
open access

CARBON-13 NMR STUDIES OF LIQUID CRYSTALS

Description: High resolution, proton decoupled {sup 13}C nmr are observed for a series of neat nematic liquid crystals, the p-alkoxyazoxybenzenes, and a smectic-A liquid crystal, diethylazoxydibenzoate in a magnetic field of 23 kG. The (uniaxial) order parameters S = <P{sub 2}(cos{theta})> are found to be about 0.4 and 0.9 for the nematic and smectic-A phase respectively at the clearing points. The order parameter increases with decreasing temperature in the nematic phase but is constant, or nearly so… more
Date: June 1, 1975
Creator: Allison, Stuart
Partner: UNT Libraries Government Documents Department
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