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Classroom Learning Environment And Student Achievement In An Enlisted Professional Military Education Environment, Pattie S. Boring

Masters Theses

This study examined the difference in academic performance between two groups of enlisted Professional Military Education (PME) students attending the Noncommissioned Officer Academy (NCOA). One group consisted of students who perceived their actual learning environment to be very similar (congruent) to their ideal learning environment. The other group consisted of students who perceived their actual learning environment to be very dissimilar (divergent) to their ideal learning environment. In addition age and gender differences were compared for both groups. The subjects of this study were initially 74 enlisted Air Force sergeants. Each participant completed the Ideal and Actual Versions of the …

Identification Of Temperate Rainforest Environments In The Southern Appalachians, Michael J. Daly

Masters Theses

The natural vegetation of the Southern Appalachian region included exceptional cove forests exhibiting characteristics typically associated with temperate rainforest formations. Human impacts over the past few centuries have almost completely eliminated these exceptional forests. The distribution of environments capable of supporting these forests is controlled regionally by climate, and locally by topography. The Thornthwaite climatic classification is applied in the context of a GIS to identify the regional extent of the temperate rainforest (perhumid) climate under both average and drought conditions. A GIS database incorporating manually-derived topographic data and land use and forest vegetation data derived from a 1990 Landsat …

An Accessibility Evaluation Of Selected East Tennessee State Parks For Use By Persons With Disabilities, Chase Ezell

Masters Theses

Parks should be developed and available for persons with disabilities. 4. An extensive training effort should be implemented for park rangers/managers to educate personnel on the minimum guidelines for accessibility within state parks. 5. Accessible programming within state parks should be evaluated.

Design Of An Aluminum Powder Combustor For Simulating The Combustion Conditions In Solid Rocket Motors, Robert John Geierman

Masters Theses

This research presents the design of a combustion device which will simulate the aspects of aluminum particle combustion inside a solid rocket motor. At the same time this combustor will allow optical data to be collected during the combustion process.

The first step in this combustor design was to examine past experiments and methods which have been used to examine the combustion of aluminum particles. Next, the fuels and oxidizers, which will be used in the first planned combustion experiments, were selected. The flame temperatures and transport properties of these fuels and oxidizers were calculated using a version of a …

Development Of A Hypercard-Based Graphical Users Interface Program For Implementing Liquid Rocket And Test Facility Component Performance Models, Stephen Douglas Howard

Masters Theses

This project involved the development of a graphical users interface (GUI) that linked a thermal properties data subroutine to liquid rocket component performance models. Three generic liquid rocket engine components were selected to demonstrate the computer program and its interactive interface. These components were a pump, a valve, and a propellant tank. The program, entitled LRE-CP², combines a modified thermophysical properties routine with a graphical user interface (GUI) using shell-based stacks created using Hypercard® software. The user enters a set of required conditions for a given component on a CRT screen in a screen specific format, and the …

The Importance Of The Residual Layer In Characterizing Ozone Episodes In East Tennessee, Eric Kevin Hutton

Masters Theses

This thesis was written to characterize episodes of high concentrations in East Tennessee. The trajectory ozone analysis of high pressure air masses revealed that the trajectory of a high pressure system impacting East Tennessee was not as important as whether the system stagnated. Four ozone episodes have also been analyzed. In May 1992, stations representative of the residual layer observed an excellent example of a nocturnal increase of ozone due to regional transport that contrasted a simultaneous decrease in ozone concentrations at nearby low altitude monitors. Using ozone isopleth maps and comparisons of individual stations representative of the residual layer …

Design Of Saturn Automotive Plastic Door Panels For Assembly, Barton Kirk Ideker

Masters Theses

This project was an investigation of new methods for attaching Saturn plastic automobile door panels to metal frames. The design emphasis was on assembly. The current Saturn door attachment process was considered too slow and labor intensive. Three new attachment schemes were devised--the sliding concept, the flexing concept, and quarter-turn fastener concept. The sliding and the flexing concepts were designed in detail, prototyped and tested. A detailed design was not necessary for the quarter-turn concept due to the commercial availability and wide-spread use of these fasteners. The sliding and flexing prototypes were refined to a level where assembly simulations could …

Properties And Site Substitutions For Ternary Chromium Additions To B2 Iron Aluminides, Sanjeev Khosla

Masters Theses

The equiatomic and iron-rich ordered iron aluminides are potential medium temperature materials because of their low cost and good elevated temperature properties. However, their chief drawback is their brittleness at room temperature. Attempts have and are being made to increase their ductility by alloying. It has also been established that the site preference of the ternary element could affect the mechanical properties of these aluminides. A study was made of the site substitution of Cr in the B2 FeAl using the variable x-ray energy of a synchrotron source. Seven compositions were chosen of which three were binary FeAl alloys. It …

The Design, Fabrication, And Testing Of A Centrifuge For Laser Materials Processing Under Enhanced Gravity Conditions, Cindy R. Mckowen

Masters Theses

A simple, cost-effective centrifuge for use in an enhanced gravity laser materials processing system was developed. This system is capable of producing an acceleration normal to the sample surface ranging from 2g_e to 10g_e Design constraints include a maximum resultant acceleration of 10g_e and a beam delivery system which is capable of using either a CO₂ or Nd:YAG laser system as the energy source. The available process diagnostics include photodiodes, thermocouples, a CCD camera, and accelerometers in three axes.

An experiment was run to test the system and determine the effect of gravity on the weld …

The Development Of A Ground Proximity Warning System For United States Navy Strike-Fighter Jet Aircraft, Richard Michael Manski

Masters Theses

This research attempted to develop guidelines for the development of a Ground Proximity Warning System (GPWS) for United States Navy strike- fighter jet aircraft in an effort to reduce the incidence of controlled flight into terrain. A review of GPWS technology development and capabilities was conducted, as well as an overview of previous and on-going GPWS projects. A GPWS algorithm development began in the Fall of 1991 and began developmental test in the Naval Air Warfare Center/Aircraft Division (NAWC/AD), Manned Flight Simulator (MFS) in the Spring of 1992. Simultaneously, the pilot vehicle interface developmental testing began at the NAWC/AD Aircrew …

Evaluation Of A Submicron Particulate Monitor, Jack Leland Parker

Masters Theses

A Sample Extraction / Dilution System (SEDS) was built at The University of Tennessee Space Institute (UTSI) to measure particle size distributions and mass loadings in a high number density environment The SEDS extracts a sample of particle laden gas from a high particle concentration environment and dilutes it while preventing acid and water condensation. After dilution, a commercially available particle sizing instrument can be used for number density and mass loading measurements. The major advantage of the SEDS over currently available techniques for measuring high loading environments is its on-line, near real-time response to particle number density fluctuations. The …

The Use Of Lemna Minor L. (Lemnaceae) As Assessor Of Water Quality In The Big South Fork River, Cumberland Plateau, Tennessee-Kentucky, Margaret Dianne Parks

Masters Theses

This research investigated the applicability of the response of Lemna minor L. as an indicative, site specific, bioassay of water quality within a riverine system. This standardized bioassay test (ASTM, 1992) does not quantify or specify pollutants, but provides a qualitative, seasonal assessment of phytotoxicity at the primary producer level of the food chain for sample sites. Our intention was to interpret the growth constraints of accessible site water collections in terms of the integrated capability of the BSF as a biotic substrate. It was concluded that Lemna minor can detect river contamination by quantifying growth responses. The method can …

Parametric Positron Emission Tomographic Imaging Using Parallel Virtual Machine : With An Example Using Myocardial Blood Flow Analysis, Christopher S. Patterson

Masters Theses

In this thesis, I integrated Parallel Virtual Machine (PVM) software (University of Tennessee and Oak Ridge National Laboratory), a state space matrix analysis package, (CtrIC, Integrated Systems, Inc., Santa Clara, OA) and an existing computer workstation network to reduce calculation times for myocardial blood flow (MBF) parametric images. Dynamic heart scanning is one of the most frequently utilized clinical procedures in Positron Emission Tomography (PET). A current drawback for physicians is a lack of quantitative data on myocardial blood flow rates for each patient. There is no baseline, no database of parametric MBF images, and no histories that can be …

Nothing That Is So Is So : Disguise And Identity In William Shakespeare's Twelfth Night And Sir Philip Sidney's The Old Arcadia, Laura Antoinette Pritchard

Masters Theses

This thesis compares Shakespeare's festive comedy, Twelfth Night, to Sir Philip Sidney's pastoral romance, The Old Arcadia, in terms of their use of disguise and mistaken identity. The characters must overcome these obstacles of mistaken identities, mistaken beliefs, and disguises so they can find their true identities and re-establish the social order that was disrupted at the beginning of each work. The two works are complementary. By examining their genres, the way they both portray nature, the social order, providence, the folly of self-love, and losing the self to find the self, I have shown that by considering these issues …

Doing Poetry : A Freireian Approach, Lisa Pollard

Masters Theses

The purpose of this study was threefold: (1) to determine whether a Freireian approach to poetry increased students' knowledge of poetry as a craft and as an art; (2) to determine whether a Freireian approach to poetry enhanced students' perceptions of poetry; (3) to ascertain to what extent, if any, a Freireian approach to poetry increased students' self knowledge and their awareness of others. To this end I conducted a case study of a group of ninth grade "basic" students at a local high school from April 16, 1993, until May 16,1993. At the end of the four weeks, I …

Fuzzy Design Procedure For Single Attribute Sampling Plan : Decision-Making In A Fuzzy Environment, Sŭng-Ho Son

Masters Theses

This paper presents an alternative design procedure for solving single attribute sampling plans using fuzzy set theory. This design attempts to properly represent risk conditions (traditionally given in a classical mathematical model) using a fuzzy mathematical model in an attempt to illustrate the value of fuzzy set theory to Industrial Engineering applications. This proposed design utilizes, as its base conditions, a conventional single attribute sampling plan developed by A. Hald [11,12]. Specifically, the proposed design attempts to generate sample size requirements (which can be compared to sample size requirements by Hald) to determine the value of applying fuzzy set theory …

Identification Of The Developing Trends In Sexual Harassment Cases In The Hospitality Industry, Megan E. Sampson

Masters Theses

The purpose of this research was to identify the developing trends of sexual harassment cases in the hospitality industry. The evolution of the court's definition of sexual harassment was noted, and settlements decided by the courts was reported. Recommendations to deter sexual harassment in the hospitality industry were made. The sexual harassment cases were found in research journals housed at the University of Tennessee Law Library in Knoxville, Tennessee. The journals used were West's Federal Practice Digest, American Law Review, American Jurisprudence, American Law Reporter, and Corpus Juris Secundum. A West Law computer search and a Lexis computer search, also, …

Working With Disabled Children : Effects On University Student's Self-Esteem, Tommy Joe Thomas

Masters Theses

The purpose of this study was to measure the possible changes in self-esteem of university students working with disabled children in an outdoor camp setting. This research involved a control group that consisted of 32 male and female students enrolled in Foundations of Leisure and Dynamics of Recreation Leadership at The University of Tennessee. The experimental group consisted of 72 male and female graduate and undergraduate students enrolled in Outdoor Education for Disabled Children at The University of Tennessee. Self-esteem was measured using the Culture Free Self-Esteem Inventory, second edition. Form AD. The instrument was administered to both groups at …

Comparison Of Impulsive And Low Thrust Propulsion Options For An Earth-Orpheus Rendezvous Mission, Herbert Daniel Thomas

Masters Theses

With decreasing natural resources here on Earth, new avenues must be explored which satisfy our consuming needs and provide a reasonable economic return. One such option is asteroid mining. An asteroid rendezvous mission is the first step in achieving this goal and may provide scientists with a deeper understanding of the formation of the solar system. The asteroid rendezvous mission must be technically and economically sound, and this will require that advanced propulsion systems be developed to reduce the cost of interplanetary travel and promote commercial involvement. The primary purpose of this thesis is to design and compare optimal rendezvous …

Evolution Of A Product : Development Of A Force Reaction Device For The Input Cord On Solid Body Stringed Electric Musical Instruments, Thomas Christopher Widner

Masters Theses

This purpose of this thesis was to perform an investigation of the design and development process required to bring a potential product from concept to production. The specific product to be developed was a force reaction device to be installed on solid body electric musical instruments such as electric guitars and basses. In addition to reacting forces subjected upon the instrument cord, the device was to continually protect the surface finish of the instrument by keeping the cord and the instrument body from coming into contact with one another. The development process included such areas as determination of the design …

The Semiproletarianization Of The Household : Making Ends Meet In Rosey Hollow, Lee Lyle Williams

Masters Theses

Making ends meet for workers in the periphery of the global economy has always required a delicate balancing act between needs and means for survival. Little attention has been paid to household livelihood strategies which are both adaptations to, and resistant to the culture of capital. This ethnography investigates cultural and economic livelihood strategies used by household's in a changing world-economy. Drawing on data from a case study of a semiproletariat household in a rural east Tennessee community, this report examines as its central question: In the face of severe economic dislocation, how do rural, working-class, households, located in a …

An Application Of A Parameter Fitting Model To The University Of Tennessee Space Institute Transaugmented Railgun, John M. Wise

Masters Theses

Part of the difficulty in explaining the disparity between theoretical and experimental performance in railguns has been a result of a difficulty in identifying a number of pertinent parameters. The purpose of this paper is to attempt to identify the values of several parameters in a model of the forces involved for two types of electromagnetic launchers. A parameter identification method was applied to each shot using a numerical scheme to solve a force model for each type of launcher and to solve the associated differential equations obtained from differentiating the model force differential equation with respect to the desired …

Monte Carlo Computations Of A Pulsed-Power Bremsstrahlung Source, Alisha G. Wooten

Masters Theses

The research for this thesis computationally simulated a pulsed-power bremsstrahlung source with Monte Carlo techniques. The bremsstrahlung source consisted of a pulsed current of electrons impinging on a target with a high atomic number. A differential absorption spectrometer and a thermoluminescent detector (TLD) array measured the transmitted photon energy spectrum and the absorbed dose at points in the bremsstrahlung radiation field. Experimental measurements of the source were documented by T.K. Cotter in "Measurements of a Pulsed-Power Bremsstrahlung Source" (Cotter, 1993). Two computational methods for simulating the source are compared in this thesis. Both methods use the stochastic mathematical tool known …

An Epidemiologic Study Of Toxoplasma Gondii In Swine In Tennessee, Amir Mohsen Assadi-Rad

Doctoral Dissertations

The reliability of the Modified Agglutination Test (MAT) to detect infection with Toxoplasma gondii was evaluated in a murine model. Thirty-five mice (ICR) were infected with bradyzoites of (UT-1 strain) and all acquired the infection. IgM and IgG titers were measured every two days in the twenty-five infected mice. IgM and IgG appeared seven days postinfection (PI). IgM peaked from 11-15 days PI and remained throughout the experiment (45 days). The presence of T. gondiiwas confirmed post-mortem in all infected mice by impression smear, hematoxylin and eosin and/or immunoperoxidase straining of brain sections. The MAT was proven a reliable …

Quantitative Genetic Analysis Of Third Metacarpal Morphometry In Baboons (Papio Hamadryas), Katherine Christine Park

Masters Theses

Osteoporosis is a very disabling disease in humans, and not until recently with the advent of modern technology has it been researched in a manner beneficial to medical applications. Initially, the use of animals in osteoporosis research served primarily as an avenue for testing and research. Recently the use of nonhuman primates has expanded the research potential for such studies on related individuals more similar to humans. Baboon colonies provide researchers with accessible nonhuman primate populations in which pedigrees can be determined and biomedical studies can be performed. This study is based on 186 hand-wrist radiographs of two baboon subspecies, …

Flavor And Stability Of Potato Chips Fried In Canola, High Oleic Acid Sunflower, Sunflower, And Cottonseed Oils, Hung-Wei Lin

Masters Theses

The objective of this study was to determine the effects of canola (CA), high oleic acid sunflower (HOSU), regular sunflower (SU), and cottonseed (CS) oils on the characteristics, flavor, and stability of potato chips. Oil degradation during frying was monitored also by peroxide value (PV), free fatty acid (FFA) levels, and fatty acid compositional changes. Chips were fried in the different oils and stored 0 wk (fresh) and under fluorescent light or in the dark at 23°C for 2 and 4 wk. Chips were analyzed for color, moisture and oil contents, PV of chip oil, concentrations of volatile components, flavor …

Analysis Of Solidification Microstructures In Single Crystal Stainless Steel Melt Pools, Jeffrey B. Sipf

Masters Theses

The microstructural analysis of stationary-melt or "weld"pools provides important information concerning the relationships between the weld-pool shape, the crystallography of the sample, and the resulting microstructural properties of the weld. A detailed microstructural analysis of stationary melt pools made using oriented stainless steel single crystals with a composition of 70%Fe-15%Ni-15&Cr (wt%) was performed in order to investigate the resulting microstructure and the effects of crystallography in determining microstructural development. Stationary melt pools were formed by employing electron-beam and gas-tungsten-arc heating methods on the (001), (011), and (111) oriented planes of the austenitic, FCC-alloy crystals. The characterization and analysis of the …

Arthropod Dissemination Of Discula Destructiva : Conidia On Cornus Florida, Deanna M. Colby

Masters Theses

In 1978, a fungal disease, identified as Discula destructiva Redlin sp. Nov., was discovered killing native flowering dogwoods, Comus florida Link., in the northeastern United States. Since then, the pathogen has spread southward along the Appalachian mountain range to Georgia and Alabama, infecting dogwoods on more than 2.3 million hectares.

Known methods of pathogen dissemination include wind and rain. Other possible mechanisms for dispersing fungal conidia involve animal vectors, such as arthropods which may carry conidia externally and/or internally. The objective of this research was to determine if arthropods could disseminate viable D. destructiva conidia. The adult convergent lady beetle …

A Radiological Assessment Of The 903 Pad, Mound, East Trenches And Off-Site Areas At The Rocky Flats Plant, Bryan S. Johnson

Masters Theses

This thesis presents a radiological assessment of three contaminated areas at the Rocky Flats Plant in Colorado. The first area is located in Operable Unit 2 (OU 2) in the southeastern portion of the plant. The other two areas are located just off-site to the east. The goal of this thesis is to determine whether the U.S. Department of Energy (DOE) can release these areas to the public or whether it must remediate them, based on the requirements and procedures outlined in DOE Order 5400.5, "Radiation Protection of the Public and Environment." The methodology used to perform the assessment is …

A Comparison Of Low-Gravity And One-Gravity Cryogenic Flow Boiling, George P. Angelopoulos

Masters Theses

Data collected by an experimental apparatus subjected to both parabolic flight experiments and ground-based experiments were analyzed and compared. The data consisted of ten^erature and pressure readings gathered by thermocouples and pressure transducers as liquid nitrogen upflowed a stainless steel tube. Other data consisted of visual flow patterns as liquid nitrogen upflowed a quartz tube. This thesis presents a discussion and comparison of temperature and pressure data of the liquid nitrogen boiling within the stainless steel tube under both microgravity and normal gravity conditions. Some flow visualization is used when describing the speculation that a backpressure in the test tube …