Mitchell, Eric John.

Mode of access: World Wide Web. | Title from title page screen (viewed on May 13, 2004). | Thesis advisor: Robert Richards. | Document formatted into pages (xvi, 98 p. : ill. (some col.)). | Thesis (M.S.) -- University of Tennessee, Knoxville, 2004. | Vita. | Includes bibliographical references (p. 51-53). | This thesis analyzes the recent Version 10.7 Operational Flight Program (v10.7 OFP) Flight Control System upgrade to the F/A-18A-D (legacy) Hornet fighter aircraft. This developmental progra...

Toroczkai, Zoltan

The Theory of Brownian Vacancy Driven Walk(ABSTRACT)We analyze the lattice walk performed by a tagged member ofan infinite `sea of particles filling a d-dimensionallattice, in the presence of a single vacancy. The vacancy isallowed to be occupied with probability 1/2d by any of its2d nearest neighbors, so that it executs a Brownian walk.Particle-particle exchange is forbidden; the onlyinteraction between them being hard core exclusion. Thus,the tagged particle, differing from the others only by ...

Kline, Paul A.

For receivers using the GlobalPositioning System (GPS), it isstandard procedure to treat thereceiver clock bias from GPS timeas an unknown. This requires fourrange measurements to the satellitesin order to solve for threedimensional position and clockoffset. If the receiver clock could besynchronized with GPS time, theextra range measurement would notbe necessary. To achieve thissynchronization, a stable frequencyreference must be incorporated intothe GPS user set. This concept isknown as clock ...

Wittmer, Kenneth S

Experiments were performed to document the turbulent flowfield produced downstream of an airfoilencountering an intense streamwise vortex. This type of perpendicular airfoil--vortex interaction commonlyoccurs in helicopter rotor flows. The experiments presented here thus provide useful information for theprediction of helicopter noise, particularly BWI noise.Three-component velocity and turbulence measurements were made in unprecedented detail using acomputerized miniature four-sensor hot-wire p...

Bruner, Christopher William Stuteville

Several different time-integrationalgorithms for the Euler equations areinvestigated on twodistributed-memory parallel computersusing an explicit message-passingparadigm: these are classic EulerExplicit, four-stage Jameson-styleRunge-Kutta, Block Jacobi, BlockGauss-Seidel, and Block SymmetricGauss-Seidel. A finite-volumeformulation is used for the spatialdiscretization of the physical domain.Both two- and three-dimensional testcases are evaluated against fivereference solutions to demonstrateacc...

Boyd, Curtis Barton

Approximately fifty percent of the bridges in the UnitedStates are considered deficient. The deterioration of theconcrete components is a leading cause of the problem.The deterioration of concrete bridge decks is due primarilyto corrosion of the reinforcing steel in the concrete. Apromising solution to the problem is the use of fiberreinforced plastics (FRP) as a replacement for reinforcingsteel. The use of FRP as reinforcement has the followingadvantages of lightweight, high tensile strength, c...

Kaufman, Matthew Douglas

A procedure for generating and usinga polynomial approximation to wingbending material weight of a HighSpeed Civil Transport (HSCT) ispresented. Response surfacemethodology is used to fit aquadratic polynomial to datagathered from a series of structuraloptimizations. Several techniques areemployed in order to minimize thenumber of required structuraloptimizations and to maintainaccuracy. First, another weightfunction based on statistical data isused to identify a suitable modelfunction for the r...

Unsal, Cem

One of today s most serious social, economical and environmental problems is trafficcongestion. In addition to the financial cost of the problem, the number of traffic relatedinjuries and casualties is very high. A recently considered approach to increase safety whilereducing congestion and improving driving conditions is Automated Highway Systems (AHS).The AHS will evolve from the present highway system to an intelligent vehicle/highway systemthat will incorporate communication, vehicle control...

Giunta, Anthony A.

Design engineers often employ numerical optimizationtechniques to assist in the evaluation and comparison of newaircraft configurations. While the use of numericaloptimization methods is largely successful, the presence ofnumerical noise in realistic engineering optimization problemsoften inhibits the use of many gradient-based optimizationtechniques. Numerical noise causes inaccurate gradientcalculations which in turn slows or prevents convergenceduring optimization. The problems created by num...

Lockee, Barbara B.

This developmental study addresses theproblem of Native American language lossthrough the development of a new instructionalmodel to teach indigenous languages to NativeAmerican learners. Whole language methodsadvocated in second language instructionincorporate observational learning strategies -strategies which are inherent in the NativeAmerican home, but often ignored in school.Instructional technology provides a mechanismfor the development of curriculum materialswhich reflect appropriate ins...

Chen, Donghui

The serious consequence of ship collisions necessitates the development of regulations and requirements for the subdivision and structural design of ships to reduce damage and environmental pollution from collision, and improve safety. The on-going revision of IMO regulations on oil outflow performance and damage stability in grounding and collision is focused on a transition to probabilistic performance-based standards. This thesis addresses one aspect of this problem, a simplified collision mo...

Barker, Julie A.

This document represents efforts to design and evaluate a new sign design for emergency route trailblazing in a two-part series. Study 1 was an off-road field experiment conducted to determine the best color combination and letter design for the emergency sign. Based upon Study 1 results, black on coral, black on light blue, and yellow on purple signs were chosen for further testing against a baseline black on orange sign, all with 125-mm, D series letters.Study 2 was an on-road field study of c...

Barnes, Eleanor H.

In 1989, a large suburban school district and a cluster of public service agencies initiated a pilot program to provide a multi-agency staffing to develop action plans for identified students. The purpose of this study was to describe the process that was involved in the establishment of this school-linked, integrated program. The research questions that guided data collection in this study were: (1) what was the impetus for initiating this interagency innovation and what resources were required...

Prince, Robert T.

<b>EVALUATION OF FIELD TESTS PERFORMED ON ANALUMINUM DECK BRIDGE</b>byRobert T. Prince<b>(ABSTRACT)</b>Studies have shown that over 30 percent of the bridges in the United States are structurally deficient, and/or over 50 years old. The majority of the highway bridges have reinforced concrete decks supported on steel or concrete girders. Over the years, weathering and deicing chemicals have caused spalling of the concrete surrounding the re...

Lamendola, Joel E.

Pilot in-the-loop oscillation (PIO) is a phenomenon which occurs due to the dynamic interaction between pilot and aircraft. This detrimental aircraft handling quality appears through a variety of flight conditions and is very difficult to predict. Due to this complex behavior, PIO is not easily eliminated. This report describes a method of PIO analysis that is capable of examining multiple asymmetric nonlinearities acting simultaneously. PIO analyses are performed on a model based on the USAF NT...

Satanek, Brandon L

The most common application of hypertext today is found on the World Wide Web, with the numbers of sites and potential users increasing continually. Hypertext systems are characterized by hyperlinks that allow users nonsequential access to the documents contained within them. Because users are not constrained to read through these documents in a linear manner, new problems may arise not found in traditional paper versions.<br><br>These problems are generally character...

Ali, Dina Fathi

The peripheral region of South Sinai in Egypt isexperiencing large-scale tourism development on the Gulf ofAqaba coast. Its Bedouin community is facing greatchallenges in its struggle for livelihood andtransformation from a pastoral and fishing community toan urbanized one. This case study employs a politicalecology approach to examine development on the coastin relation to its Bedouin community. The study revealedthat the contextual sources of rapid development beginningin 1986 included urban, ...

Suharko, Arief Bimantoro

Prior to 1980, the practice in multilevel autorack management was to loadthe railcars at various origin points, ship them to the destination ramps, unload them, and then return each car to the loading point where it originated. Recognizing the inefficiency of such a practice with respect to the fleet size that had to be maintained, and the associated poor utilization due to the excessive empty miles logged, a consolidation of the railcars was initiated and completed by February 1982. Under this ...

Joy, Ernest Harriman II

Abstract<p>Under the Program For Afloat College Education (PACE), Sailors are able to take undergraduate and pre-college level courses aboard US Navy ships through computer-based instruction or under the instruction of a college professor. This post-hoc descriptive study was designed to determine those elements or factors which contribute most to successful outcomes for Sailors enrolled in college level PACE courses. <p>A combination of descriptive and inferential sta...

Alander, Chad C. M.S.

The purpose of this study is to evaluate the performanceof the 5/16 in. diameter Elco Grade 8 standoff screw asa mechanical shear connector in composite joists.Standoff screws are being investigated as an alternativeto welded shear studs in short span composite joists.The data and results obtained from 106 pushout testsperformed on the Elco Grade 8 standoff screw arepresented. The test parameters include: standoff screwheight, quantity of standoff screws per deck rib, standoffscrew position, sla...

Bruggeman, Adriana C. Jr.

Detection of unexpectedly high concentrations of agricultural pollutantsin ground water have inspired investigations of the role of preferentialmovement of chemicals through agricultural soils. This research focuseson preferential flow and solute transport processes and the effects ofagricultural management practices on these processes. Experimentalmethods for monitoring preferential flow and solute transport in thefield as well as a stochastic, physically-based model for predictingwater flow an...

Mays, Timothy Wayne Jr.

For oblique and normal water waves at various frequencies, the use of moored cylinders as breakwaters is considered numerically using linear three-dimensional analysis. The breakwater can be used by itself for protection of small structures or as a series of cylinders to protect a harbor, shoreline, or moored vessel from the destructive energy associated with incident water waves. The breakwater is completely submerged below the free surface and is attached to the ocean floor with six symmetrica...

Kalo, Altin A. Jr.

The evaluation of production alternatives in agriculturerequires a close examination of their economic andenvironmental impacts. This study was conducted toidentify the crops with the highest profit potentialgiven terminal market prices over the last five years,evaluate the feasibility of adopting new crop alternatives,given historical price information and limited productionresources, and determine the potential environmentalimpacts of adopting new cropping strategies in Accomackand Northampton...

Perry, Jacqueline Anita Baughman

(ABSTRACT)The purpose of this study was to examine the changes in accounting instructionrecommended by the Accounting Education Change Commission (AECC) at 11 grant recipientschools and 11 similar non-grant recipient schools randomly selected. The AECC suggested thataccounting education should include more communication skills, interpersonal skills, and critical-thinking and problem-solving skills. The AECC also recommended that more emphasis be placedon teaching rather than research.To measure ...

Boggess, Kendra Stahle Jr.

ETHICAL ISSUES IN BUSINESS COMMUNICATION:A COMPARATIVE STUDY OF THE PERCEPTIONSOF JAPANESE AND US STUDENTS<p>by<p>Kendra Stahle Boggess<p>Dissertation submittedto the Faculty of theVirginia PolytechnicInstitute and State University<p>in partial fulfillment ofthe requirements for the degree of<p>Doctor of Philosophy<p>in<p>Vocational and Technical Education<p>B. June Schmidt, Chair&...

Madden, Michael Mark Jr.

The Reynolds stresses in a three-dimensional turbulentboundary layer were examined using octant analysis. Therepresentative flow was a pressure driven, three-dimensionalturbulent boundary layer on the leeside(x/L=0.76-0.78, phi=105�X-130�X) of a 6:1 prolate spheroid at10�X angle of attack. The Reynolds number for the flow wasRe=4.2x10E+6. The LDV data of Chesnakas, Simpson, and Madden(1994) were the basis of examination. This data set employeda post-processing technique for refining the radial l...

Hensirisak, Patcharee Jr.

A microbubble dispersion (MBD) was used to supply oxygen for an aerobic fermentation of Baker s yeast. The 1-liter microbubble dispersion generator supplied bubbles for 20-liter and 50-liter working volume fermentations in a 72-liter pilot scale fermenter. The microbubbles were stabilized by the surfactants naturally present in the culturing broth medium. The growth patterns of yeast Saccharomyces cerevisiae, cultured at agitation speeds of 150 rpm and 500 rpm, were compared for oxygen supplied ...

Moore, Todd M. Jr.

Attributions of Negative Intent and Responsibility andAnger Arousal of Abusive and Nonabusive Males to PerceivedNegative Dating Partner BehaviorbyTodd M. MooreAbstractResearch on marital abuse indicates that abusive husbandsattribute greater negative intent and responsibility totheir partner s behavior and report greater anger arousalduring conflictual situations with their partner than dononabusive husbands (Dutton & Browning, 1988;Holtzworth-Munroe & Hutchinson, 1993). Research...

Zhang, Huiying

The objective of this study is to evaluate the bond durability of an epoxy-based polymer concrete wearing surface bonded to aluminum bridge decks. In the bridge design, an aluminum alloy bridge deck is used with a polymer concrete wearing surface. A modified mixed mode flexure fracture test was developed to assess the bond durability of specimens aged in the following environmental conditionings: 30�XC [86�XF], 98% RH; 45�XC [113�XF], 98% RH; 60�XC [140�XF], 98% RH; freezing and thawing; salt (N...

Cohen, David E. II

Multidisciplinary interactions are expected to playa significant role in the design of future high-performanceaircraft (Blended-Wing Body, Truss-Braced wing,High Speed Civil transport, High-Altitude LongEndurance aircraft and future military aircraft).Also, the availability of supercomputers has made itnow possible to employ high-fidelity models(Computational Fluid Dynamics for fluids and detailedfinite element models for structures) at the preliminarydesign stage. A necessary step at that stage...

Sriwiriyarat, Tongchai

The Integrated Film Activated Sludge Process (IFAS) was developed to reduce the cost of additional facilities required to complete year round nitrification in the design of new or retrofit wastewater treatment plants. The purpose of this project was to develop a computer-based mechanistic model, called IFAS, which can be used as a tool by scientists and engineers to optimize their designs and to troubleshoot a full-scale treatment plant. The program also can be employed to assist researchers con...

Holst, David J.

AbstractIn 1991 EPA embraced the watershed protection approach for environmentalmanagement. EPA defines watershed protection as a strategy for effectively protecting andrestoring aquatic ecosystems and protecting human health. To encourage statewide watershedprotection, EPA developed the Statewide Watershed Protection Approach document, which isdesigned to aid states in developing their own watershed protection program. The watershedprotection approach is not a program or policy required by EPA,...

Sprague, Nicolle Marie

In recent years, stringent world-wide regulation of copper in drinking water, wastewater discharge and sludge has prompted utilities to carefully evaluate copper sources and sinks, benefits and detriments, and mitigation. This work compiled the individual efforts of researchers and utilities to provide a basis for holistic decision-making. Mass balances suggest that between 14-61% of copper in wastewater originates from home plumbing. Dosing of pure copper sulfate "root killer" by cons...

Chock, Jeffrey Mun Kong

<BR WP="BR1"><BR WP="BR2"><P><FONT SIZE="-1"> Blast profiles and two primary methods of determining them were reviewed for use in thecreation of a computer program for calculating blast pressures which serves as a design tool to aidengineers or analysts in the study of structures subjected to explosive air blast. These methodswere integrated into a computer program, BLAST.F, to generate air blast pressure profi...

Schairer, Garrett L

<P>Northern bobwhite (<I>Colinus virginianus</I>) are important game birds associated with early successional habitats across the southeastern United States. In the past 30+ years there has been an almost universal decline in bobwhite population numbers despite a long history of management. The Virginia Bobwhite Quail Management Plan was implemented in 1996 to slow and stop the current population declines in Virginia. Virginia Department of Game and Inla...

Cannon, Colleen A.

Nutritional Ecology of the Carpenter Ant Camponotus pennsylvanicus (De Geer): Macronutrient Preference and Particle Consumption<p>Colleen A. Cannon<p>(ABSTRACT)<p>The nutritional ecology of the black carpenter ant, Camponotus pennsylvanicus (De Geer) was investigated by examining macronutrient preference and particle consumption in foraging workers. The crops of foragers collected in the field were analyzed for macronutrient content at two-week intervals...

Miller, Dale Jonathan

The influences of school reform on the instructional practices of a seventh-grade language arts teacher was the focus of this study. This study was conducted in three phases: an ethnographic study, a pilot study, and a case study. The ethnography focused on the restructuring committee s proceedings, yielding information relating to the origin of reform efforts. The pilot study, stemming from the ethnography study, explored the instructional practices within a block scheduling format. Finally, th...

Yücel, Cemil

The purpose of this study was to explore the utility of Hall s (1961) conceptualization of Max Weber s (1946) theory of bureaucracy as an analytical tool in Turkey. The population was 1946 teachers in 91 public schools that employ five or more teachers. The instruments were distributed to 725 teachers in 68 schools in Karabük province. Useable returns were 486. A pilot sample (one third of the useable returns) was generated to test the instruments by utilizing a series of item analyses....

Bereketab, Semere

<center><b>Complex Equilibrium of Laterally Curved Wakes</b><p><b>Semere Bereketab</b><p><b>(Abstract)</b><p></center><blockquote><dd>Turbulent wakes generated from an aircraft or submarine vehicles has been of main interest to researchers due to the broad band noise associated with such wakes. One such case is the n...

Farmer, Anthony Lee

A two-dimensional, nonlinear dynamic analysis is conducted on a moored breakwaterconfiguration to investigate snap loads in mooring lines. Breakwaters are structures usedto attenuate or eliminate waves and protect shorelines, harbors, and other natural andman-made marine structures from wave damage. The breakwater in this investigation ismodeled both as a point mass and as a rigid body. Both models are subjected to freeundamped motions and forced undamped wave motion. Energy is dissipated throug...

XILLO, Olivier III

The study of mixing processes in supersonic flow has a greatinterest for a number of applications including scramjetdevelopments. However, the usual tools employed are verylimited. Sampling probes generally have a poor frequencyresponse, and that makes measurements of fluctuatingconcentration problematic. The goal of this study is todesign, build and test a probe capable of measuringconcentration fluctuations of at least 1 kHz. This studyshows the design of such a probe and how a high frequencyr...

Brenden, Travis Owen

<P>I assessed the potential for trophic competition between age-0 largemouth bass and juvenile bluegills by quantifying food resource use similarity in a Virginia recreational small impoundment and by experimentally stocking the species sympatrically and allopatrically in 1.0 m<SUP>3</SUP> cages and monitoring mortality, growth, and resource use. </P><P>Niche breadth of bluegills in the small impoundment was greater than that ...

Burt, Jennifer L.

The only way to simplify and promote the effective use of an alerting system that must be comprehensive in its coverage of hazardous or non-normal conditions is to convey top level information that provides an indication of criticality and identity. In an attempt to reduce the number of aural alerting signals presented in aircraft flight decks, this investigation pursued advances toward the development of a simple aural alert categorization scheme that provides flight deck function and urgency l...

Sprenger, Kurt William

ABSTRACTThe purpose of this study was to identify faculty perceptions of the personal and student benefits deriving from participation in faculty development activities. Faced with the challenge of keeping up-to-date with technology in order to keep their students up-to-date, faculty participate in many different activities. The perceived effectiveness of faculty development activities varies depending on the knowledge and interest of each faculty member.This study was descriptive, using a two-p...

Nacheri, Sylvanus Amkaya

The purpose of this study was to investigate the probability that race was a factor in the admissions process at Virginia Tech. The study was conducted in three parts. In the first part, logistic regression was used to develop a probability of admission model for eight demographically distinct groups for the years 1994-1998 using information that was presented to the university by all first-time freshman applicants considering grade point average (GPA), scholastic aptitude tests (SAT), high scho...

Adcock, Ambre Michelle

The purpose of this study was twofold: (1) to determine the extent to which boaters and riverfront landowners on the Great Egg Harbor River are similar or different in perceptions of environmental and social conditions and preferences for management; and (2) to explore factors that contribute to riverfront landowners and visitors opinions about possible management decisions for the river. The Great Egg Harbor River represents a complex challenge, with designation as a unit of the Wild and Scenic...

Pressick, James Garrett

This project is an investigation into issues surrounding the placing of a building into the context of a site. The study manifests itself through the design of a museum for Phoenician sailing ships and their artifacts.

Phillips, John Michael

Human operators often employ discontinuous or "bang-bang" control strategies when performing large-amplitude acquisition tasks. The current study applies Variable Structure Control (VSC) techniques to model human operator behavior during acquisition tasks. The result is a coupled, multi-input model replicating the discontinuous control strategy. In the VSC formulation, a switching surface is the mathematical representation of the operator s control strategy. The performance of the Vari...

Conner, David C.

The development of completely autonomous mobile vehicles has been the topic of a great deal of research over the past few decades. Spurred by interests as diverse as space exploration and land mine removal, research has focused on the mechanical requirements, sensing and computational requirements, and intelligence required for autonomous decision making.This thesis focuses on developing the software required for autonomous control, while building upon previous research into appropriate mechanic...

Vakkalanka, Suryanarayana

The serious consequences of ship collisions necessitate the development of regulations and requirements for the subdivision and structural design of ships to reduce damage and environmental pollution, and improve safety.Differences in striking ship bow stiffness, draft, bow height and shape have an important influence on the allocation of absorbed energy between striking and struck ships. The energy absorbed by the striking ship may be significant. The assumption of a rigid striking bow may no l...