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Accelerated hygrothermal stabilization of composite materials

Description: Experimentation validated a simple moisture conditioning scheme to prepare Gr/Ep composite parts for precision applications by measuring dimensional changes over 90 days. It was shown that an elevated temperature moisture conditioning scheme produced a dimensionally stable part from which precision structures could be built/machined without significant moisture induced dimensional changes after fabrication. Conversely, that unconditioned Gr/Ep composite panels exhibited unacceptably large dimen… more
Date: May 1, 1994
Creator: Gale, J. A.
Partner: UNT Libraries Government Documents Department
open access

Accelerator Mass Spectrometry Studies of Highly Charged Molecular Ions

Description: The existence of singly, doubly, and triply charged diatomic molecular ions was observed by using an Accelerator Mass Spectrometry (AMS) technique. The mean lifetimes of 3 MeV boron diatomic molecular ions were measured. No isotopic effects on the mean lifetimes of boron diatomic molecules were observed for charge state 3+. Also, the mean lifetime of SiF^3+ was measured.
Date: December 1994
Creator: Kim, Yong-Dal
Partner: UNT Libraries
open access

Accounting Measurement Bias and Executive Compensation Systems

Description: This dissertation presents empirical evidence intended to help answer two research questions. The first question asks whether executive compensation systems appear to exploit the bias in accounting-based performance measures in order to reduce the volatility in executive compensation and to allocate incentives more effectively across the range of activities performed by the executive. The second question asks whether compensation systems systematically differ between firms that use alternative … more
Date: December 1994
Creator: Boone, Jeffery Paul
Partner: UNT Libraries
open access

Accounting Regulation and Information Asymmetry in the Capital Markets: An Empirical Study of Accounting Standard SFAS no 87

Description: This study uses both basic and self-selection regression models to test three hypotheses about the effect of SFAS 87 disclosures on information asymmetry during 1985- 1987. Both types of models test the hypotheses after controlling for changes in the inventory holding and order processing costs of the spread, while the self-selection models also control for potential self-selection bias.
Date: August 1994
Creator: Lin, Wen-shan
Partner: UNT Libraries
open access

Actinide cation-cation complexes

Description: The +5 oxidation state of U, Np, Pu, and Am is a linear dioxo cation (AnO{sub 2}{sup +}) with a formal charge of +1. These cations form complexes with a variety of other cations, including actinide cations. Other oxidation states of actinides do not form these cation-cation complexes with any cation other than AnO{sub 2}{sup +}; therefore, cation-cation complexes indicate something unique about AnO{sub 2}{sup +} cations compared to actinide cations in general. The first cation-cation complex, N… more
Date: December 1994
Creator: Stoyer, N. J. & Seaborg, G. T.
Partner: UNT Libraries Government Documents Department
open access

Addition, Omission and Revision: the Stylistic Changes Made to Zehn Variationen über ein Präludium von Chopin by Ferruccio Busoni

Description: This study examines what Busoni meant by "formal deficiencies" when he described his 1884 version of Chopin Variations, and reveals that changes made to the 1884 version during its process of revision in 1922 correct the "formal deficiencies" and show a fundamental change in Busoni's compositional style and perception of musical motion. Including a detailed analysis of the modifications, omissions, and additions made to the 1922 version (including an examination of the Chopin Prelude in C minor… more
Date: December 1994
Creator: Yoon, Soomee
Partner: UNT Libraries
open access

The Administration of Auxiliary Services in Texas Public Universities: Analysis and Proposed Integrated Model

Description: The problem of this study was to develop a model for the administration of auxiliary enterprises in Texas higher education as a cooperative effort of administrators and input from other sources. The purposes were to determine which administrators currently have the responsibility for the management of auxiliary services, to evaluate the correlation between the type of administrator and the concern for fiscal and student needs, to identify problems and opportunities for useful administration, an… more
Date: May 1994
Creator: Yarbrough, Marianne (Marianne June)
Partner: UNT Libraries
open access

Adult Christian Education for Baby Boomers: a Descriptive Case Study of Three American Churches

Description: American churches seeking to assimilate baby boomers are struggling to meet the adult educational needs of this group. To determine what models of church-based adult education are used to meet the educational needs of this group, three large, growing American churches known for attracting boomers were identified as sites for research. A qualitative case study research design was used and results were compared using cross-case analysis. Initial data collection included a three-day visit at each … more
Date: August 1994
Creator: Donahue, William P. (William Paul)
Partner: UNT Libraries
open access

Adult Survivors of Childhood Sexual Abuse : Characteristics of the Mother-child Relationship

Description: This qualitative study examined the characteristics of the mother-child relationship of adult survivors of childhood sexual abuse at the time of the abuse. The study consisted of data from the McMaster Family Assessment Device (FAD), the Family of Origin Scale (FOS), and a set of structured interview questions designed by the researcher. Autonomy/intimacy concepts from the FOS examined constructs of clarity of expression, responsibility, respect, openness, acceptance of loss and separation, exp… more
Date: December 1994
Creator: Motley, Rebecca Roper
Partner: UNT Libraries
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Advanced far infrared detector and double donor studies in Ge

Description: This has application to astronomy and astrophysics. Selenium in Ge has been studied with a doping technique which limits complex formation. Only one ionization level has been found to correspond to selenium, which presumably occupies a substitutional site. This level is extremely unstable and its concentration decreases after annealing at 400C. Future work is planned to anneal the fast neutron damage before much selenium has formed in the {sup 74/76}Ge samples. It is expected that the observed … more
Date: December 1, 1994
Creator: Olsen, C.S.
Partner: UNT Libraries Government Documents Department
open access

Age/Cohort Differences in Aspects of the Self-System

Description: Age/cohort differences in several aspects of the self-system were investigated utilizing a sentence completion paradigm. Eighty-eight adults over age sixty and one hundred eight adults under age forty served as subjects. Subjects were asked to complete 30 self-referent sentence stems which were pre-structured to elicit information from the self-system. Responses were subjected to a content analysis utilizing a coding system which contained concepts used by subjects in their self-representations… more
Date: May 1994
Creator: Hanselka, Larry L. (Larry Lynn)
Partner: UNT Libraries
open access

AIDS and Aging: Are the Eldery Becoming the New At-Risk Population?

Description: This dissertation breaks new ground. It examines the perceptions of older adults towards AIDS prevention. Using the National Health Interview Survey, 1988: AIDS Knowledge and Attitudes Supplement, a modified Health Belief Model is developed. Despite the low number of older adults 55+ with AIDS, some extenuating circumstances increase their risk of AIDS contraction. Older adults have lower levels of knowledge about AIDS, weaker immune systems and receive more blood transfusions. Societal influen… more
Date: August 1994
Creator: Allen, Annette Marie
Partner: UNT Libraries
open access

The {alpha}-induced thick-target {gamma}-ray yield from light elements

Description: The {alpha}-induced thick-target {gamma}-ray yield from light elements has been measured in the energy range 5.6 MeV {le} E{sub {alpha}} {le} 10 MeV. The {gamma}-ray yield for > 2.1 MeV from thick targets of beryllium, boron nitride, sodium fluoride, magnesium, aluminum and silicon were measured using the {alpha}-particle beam from the Lawrence Berkeley Laboratories 88 in. cyclotron. The elemental yields from this experiment were used to construct the {alpha}-induced direct production {gamma}-r… more
Date: October 1994
Creator: Heaton, R. K.
Partner: UNT Libraries Government Documents Department
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American Grotesque from Nineteenth Century to Modernism: the Latter's Acceptance of the Exceptional

Description: This dissertation explores a history of the grotesque and its meaning in art and literature along with those of its related term, the arabesque, since their co-existence, specifically in literature, is later treated by a well-known nineteenth-century American writer in Tales of the Grotesque and Arabesque- Theories or views of the grotesque (used in literature), both in Europe and America, belong to twelve theorists of different eras, ranging from the sixteenth century to the present period, es… more
Date: August 1994
Creator: Kisawadkorn, Kriengsak
Partner: UNT Libraries
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American Sandwich: West Coast, East Coast, in Between

Description: The thesis begins with an introduction, followed by six short stories. The stories that follow span three or four regions of the American landscape and three or four decades of the twentieth century. What drives each story is the isolation of both narrator and main character (when these are not the same) from the world of the story. In each story, there is either a sense of wanting to belong or an urge to escape, or both. The paradox--also the writer's paradox--is that if one belongs, one has n… more
Date: August 1994
Creator: Clark, Emily A. (Emily Alcorn)
Partner: UNT Libraries
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The analysis and minimization of oxygen contamination in the powder processing of molybdenum disilicide

Description: Problems with MoSi{sub 2} include low-temperature fracture toughness, high-temperature creep resistance, and ``pest`` phenomena. Oxygen introduced by powder processing may be the cause of some of these problems. This study led to the following conclusions: Supplied powders have significant oxygen present prior to processing (up to 2.5 %), in the form of silica on the surface. This oxygen contamination did not increase by exposure to air at room temperature. An improved powder processing method … more
Date: April 24, 1994
Creator: Shannon, K.
Partner: UNT Libraries Government Documents Department
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Analysis of Compressive Fracture in Rock Using Statistical Techniques

Description: Fracture of rock in compression is analyzed using a field-theory model, and the processes of crack coalescence and fracture formation and the effect of grain-scale heterogeneities on macroscopic behavior of rock are studied. The model is based on observations of fracture in laboratory compression tests, and incorporates assumptions developed using fracture mechanics analysis of rock fracture. The model represents grains as discrete sites, and uses superposition of continuum and crack-interactio… more
Date: December 1, 1994
Creator: Blair, S. C.
Partner: UNT Libraries Government Documents Department
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Analysis of dynamic testing performed on structural clay tile infilled frames

Description: The behavior of two structural clay tile infilled frames subjected to dynamic loading is investigated. The testing was performed by USACERL using a biaxial shake table machine on which two framed infills were spaced nine feet apart and connected by steel trusses and an eight inch concrete roof slab. The infills were composed of structural clay tile block which were laid with the cores horizontal. The specimen was loaded in both the out-of-plane and in-plane directions using a site specific time… more
Date: December 18, 1994
Creator: Fowler, J. J.
Partner: UNT Libraries Government Documents Department
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Analysis of in-situ rock joint strength using digital borehole scanner images

Description: The availability of high resolution digital images of borehole walls using the Borehole Scanner System has made it possible to develop new methods of in-situ rock characterization. This thesis addresses particularly new approaches to the characterization of in-situ joint strength arising from surface roughness. An image processing technique is used to extract the roughness profile from joints in the unrolled image of the borehole wall. A method for estimating in-situ Rengers envelopes using thi… more
Date: September 1, 1994
Creator: Thapa, B. B.
Partner: UNT Libraries Government Documents Department
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An Analysis of Preferred Equity Redemption Cumulative Stock

Description: This dissertation examines whether Percs, Preferred Equity Redemption Cumulative Stocks, are properly priced regarding to the relevant securities, such as the underlying common stock, the long-term call option of the stock, and so on. Test results indicate that Percs were overpriced with respect to the equivalent packages composed of the relevant securities. Further tests on arbitrage restrictions show that transaction costs would prevent arbitrage profits. This dissertation also examines the m… more
Date: May 1994
Creator: Pu, Hansong
Partner: UNT Libraries
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An Analysis of Texas Special Education Due Process Hearings from September 1, 1983, to September 1, 1992: Implications for the Administration of Special Education Programs

Description: The purpose of this study was to assess the effects of selected characteristics on the outcomes of those special education due process hearings brought forth in the state of Texas from September 1, 1983, to September 1, 1992. A further purpose was to determine if district characteristics of size or location affect the likelihood of a district's becoming involved in a special education due process hearing. Data for the study was collected for all special education due process hearings conducted … more
Date: August 1994
Creator: Webb, Paula J. (Paula Jean)
Partner: UNT Libraries
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An Analysis of the Management and Leadership Development Training Needs of Texas Principals on the Texas State Board of Education's Core Curriculum

Description: The problem of this study was to determine training priorities as mandated by the Texas Legislature on the CORE Curriculum for Management and Leadership Development and their implications for Texas public school principals. Purposes of the study were to validate an instrument for assessing principals' training needs, to provide data for planning and delivering training for principals, to provide results to staff developers, and to develop a profile of similarities and differences in the percept… more
Date: December 1994
Creator: Morris, Amelia Marie
Partner: UNT Libraries
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An Analysis of Two Dimensional Printed Elements Within Three Dimensional Structures

Description: I believe the frame or housing of a printed image plays an integral role in the context of the work. It functions as a vehicle for possible interpretation. It should respond to and complement the concept of the central image. The image presented in a vessel or reliquary format should instill a meditative or religious response.
Date: May 1994
Creator: Hubner, Lynne J.
Partner: UNT Libraries
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