Digital Commons Network^™

The Express: December 13, 2003, Taylor University Fort Wayne

2003-2004 (Volume 8)

MLK Jr. Day: Ministry for reconciliation — Housing summit sums up men’s future housing options — Grace Notes — ’Tis the season for the cinema — The Express Index — Gyertson: His passions drive the direction of his presidency — Men’s basketball jumps into gear — The truth about campus health — The Top Ten

December 13, 2003 (Pages 6005-6196), Pennsylvania Legislative Reference Bureau

Volume 33 (2003)

No abstract provided.

The Use Of Selected Water Quality Parameters To Identify Fecal Coliform Sources In Support Of The Sinking Creek Total Maximum Daily Load., Susana Maria Floresguerra

Electronic Theses and Dissertations

Sinking Creek, located in upper east Tennessee, is on the 303(d) list for not meeting minimum water quality standards for recreation. A Total Maximum Daily Load (TMDL) for fecal coliforms was developed. The purpose of this study was to investigate the use of water quality parameters to identify areas that contribute to the fecal coliform loading. Concentrations of nitrate-N, orthophosphates, BOD, alkalinity, hardness, and optical brighteners (OB) were monitored at fourteen stations monthly for one year. Site 3 (agricultural region) exhibited the highest average nitrate-N loadings (627.34 mg/sec) and orthophosphate (as PO₄^3-) loadings (84.83 mg/sec). Alkalinity loadings …

Development Of A Test For Measuring Knowledge Of The Discipline Provisions Of The Individuals With Disabilities Education Act Amendments Of 1997., Jerri Nave Lyons

Electronic Theses and Dissertations

The purpose of this study was to develop and refine an instrument to assess knowledge levels of the discipline provisions of the Individuals with Disabilities Education Act Amendments of 1997 (IDEA '97). Such an instrument will assist in determining whether or not and to what extent additional training opportunities may be needed for school personnel who are responsible for disciplining students served in special education under IDEA '97. School officials who do not have proper knowledge and understanding of these provisions may violate students' rights by denying them the free appropriate public education to which they are entitled.

The initial …

Generalizing List Scheduling For Stochastic Soft Real-Time Parallel Applications, Yoginder Singh Dandass

Theses and Dissertations

Advanced architecture processors provide features such as caches and branch prediction that result in improved, but variable, execution time of software. Hard real-time systems require tasks to complete within timing constraints. Consequently, hard real-time systems are typically designed conservatively through the use of tasks? worst-case execution times (WCET) in order to compute deterministic schedules that guarantee task?s execution within giving time constraints. This use of pessimistic execution time assumptions provides real-time guarantees at the cost of decreased performance and resource utilization. In soft real-time systems, however, meeting deadlines is not an absolute requirement (i.e., missing a few deadlines does not …

Solutions To The Navier-Stokes Equations In A Non-Inertial Reference Frame, Kishore Satya Majety

Theses and Dissertations

A general rotating frame formulation of the Navier-Stokes equations has been added to the incompressible and arbitrary Mach number versions of UNCLE. While eliminating the need for moving grids, this formulation also reduces the error caused by linear approximations of rotational motion. The formulation is validated for single axis rotations by comparing the simulations of a marine propeller and an isolated helicopter rotor with experimental data. A simulation of the helicopter rotor in pitching motion is also performed. Results are compared between the non-inertial reference frame formulation and absolute frame solver for a prolate spheroid with all the components of …

An Analytical Method To Determine The Mechanical Properties Of Linear Viscoelastic Solids, Rani W. Sullivan

Theses and Dissertations

A new methodology has been developed to model the viscoelastic behavior of solids using a general spectrum function. Not all materials can be modeled using simple Kelvin-Voigt (K-V) or Maxwell elements where the viscoelastic parameters are constants. There is a need for a general spectrum function that can be used to model the Lame' functions which constitute all properties of interest. Thus far, there is no method like the one presented in this study that can determine the moduli of viscoelastic materials. This study develops a methodology by which the time dependent properties of homogeneous and non-homogeneous materials may be …

Analysis Of A Thin-Walled Curved Rectangular Beam With Five Degrees Of Freedom, Khurram Zeshan Moghal

Theses and Dissertations

A study of a thin-walled curved rectangular box beam under torsion and out-of-plane bending is documented in this thesis. A new one-dimensional theory that takes into account warping and distortion in the beam cross-sections is the main focus. Existing available theories for thin-walled curved beams lack rigorous theoretical development, and most have ignored the effects of warping and distortion. A higher order theory including two additional degrees of freedom corresponding to warping and distortion was derived. The conventional three degrees of freedom model was compared with the new five degrees of freedom model. The variation of beam thickness to control …

Coupling Heat Transfer And Fluid Flow Solvers For Multi-Disciplinary Simulations, Qingyun Liu

Theses and Dissertations

The purpose of this study is to build, test, validate, and implement two heat transfer models, and couple them to an existing fluid flow solver, which can then be used for simulating multi-disciplinary problems. The first model is for heat conduction computations, the other one is a quasi-one-dimensional cooling channel model for water-cooled jacket structural analysis. The first model employs the integral, conservative form of the thermal energy equation, which is discretized by means of a finite-volume numerical scheme. A special algorithm is developed at the interface between the solid and fluid regions, in order to keep the heat flux …

Applicability Of Semi-Tension Fields To The Back Panel Of A Pick-Up Truck, Shubha S. Tangirala

Theses and Dissertations

The study and design of light-weight automobiles has emerged as an important area of interest in the government, academia, and the manufacturing industry. Significant advances in vehicle weight reduction technologies have taken place in almost all fields of transportation. Weight reduction is identified as a key factor to achieving fuel-economy, energy efficiency and environmental safety. The main objective of this thesis is to investigate cost effective design methodologies that enable fabrication of light weight structures, which subsequently result in a fuel saving. A few important techniques and trends of weight reduction in the automotive industry over the past few years …

Assessment Of Open-Source Software For High-Performance Computing, Gayatri Rapur

Theses and Dissertations

High quality software is a key component of various technology systems that are crucial to software producers, users, and society in general. Software application development today uses software from external sources, to achieve software implementation goals. Numerous methods, activities, and standards have been developed in order to realize quality software. Nevertheless, the pursuit for new methods of realizing and assuring quality in software is incessant. Researchers in the software engineering field are in pursuit of methods that can be on par with changing technology. Assessment of open-source software can be supported by a methodology that uses data from prior releases …

Automated Accident Detection In Intersections Via Digital Audio Signal Processing, Navaneethakrishnan Balraj

Theses and Dissertations

The aim of this thesis is to design a system for automated accident detection in intersections. The input to the system is a three-second audio signal. The system can be operated in two modes: two-class and multi-class. The output of the two-class system is a label of ?crash? or ?non-crash?. In the multi-class system, the output is the label of ?crash? or various non-crash incidents including ?pile drive?, ?brake?, and ?normal-traffic? sounds. The system designed has three main steps in processing the input audio signal. They are: feature extraction, feature optimization and classification. Five different methods of feature extraction are …

Effects Of Transcription Errors On Supervised Learning In Speech Recognition, Ramasubramanian H. Sundaram

Theses and Dissertations

Supervised learning using Hidden Markov Models has been used to train acoustic models for automatic speech recognition for several years. Typically clean transcriptions form the basis for this training regimen. However, results have shown that using sources of readily available transcriptions, which can be erroneous at times (e.g., closed captions) do not degrade the performance significantly. This work analyzes the effects of mislabeled data on recognition accuracy. For this purpose, the training is performed using manually corrupted training data and the results are observed on three different databases: TIDigits, Alphadigits and SwitchBoard. For Alphadigits, with 16% of data mislabeled, the …

Design, Assembly, And Assessment Of An Experimental Apparatus To Measure Fouling Of Condenser Tubes, Gregory J. Zdaniuk

Theses and Dissertations

This thesis discusses the design, construction, and debugging of an experimental apparatus to measure fouling in smooth and/or augmented copper alloy condenser tubes. In addition, guidelines and recommendations are made for construction of similar devices. Specification sheets of the system components, detailed design calculations, and photographs of the apparatus are included in the appendices.

Integrating Algorithmic And Systemic Load Balancing Strategies In Parallel Scientific Applications, Sheikh Khaled Ghafoor

Theses and Dissertations

Load imbalance is a major source of performance degradation in parallel scientific applications. Load balancing increases the efficient use of existing resources and improves performance of parallel applications running in distributed environments. At a coarse level of granularity, advances in runtime systems for parallel programs have been proposed in order to control available resources as efficiently as possible by utilizing idle resources and using task migration. At a finer granularity level, advances in algorithmic strategies for dynamically balancing computational loads by data redistribution have been proposed in order to respond to variations in processor performance during the execution of a …

An Investigation Of The Standardized Multiple-Choice Departmental Calculus I Final Examination, Maria Elizabeth Bearden

Theses and Dissertations

At Mississippi State University, Department of Mathematics and Statistics, a standardized multiple-choice departmental final examination (SMCDF) was administered at the end of the Calculus I mathematics course. This practice was abolished at the end of the spring 1997 semester. The purpose of this study was to determine if there was a difference in students¡¯ success in subsequent calculus courses as measured by a student¡¯s grade. If there was a difference, was it consistent along varying levels of students¡¯ ACT mathematics scores. A two-way analysis of variance (ANOVA) was run on the data. The variables were the five student ACT Mathematics …

New Visualization Techniques For Multi-Dimensional Variables In Complex Physical Domains, Rhonda J. Vickery

Theses and Dissertations

This work presents the new Synthesized Cell Texture (SCT) algorithm for visualizing related multiple scalar value fields within the same 3D space. The SCT method is particularly well suited to scalar quantities that could be represented in the physical domain as size fractionated particles, such as in the study of sedimentation, atmospheric aerosols, or precipitation. There are two components to this contribution. First a Scaling and Distribution (SAD) algorithm provides a means of specifying a multi-scalar field in terms of a maximum cell resolution (or density of represented values). This information is used to scale the multi-scalar field values for …

Improvements On Heat Flux And Heat Conductance Estimation With Applications To Metal Castings, Xingjian Xue

Theses and Dissertations

Heat flux and heat conductance at the metal mold interface plays a key role in controlling the final metal casting strength. It is difficult to obtain these parameters through direct measurement because of the required placement of sensors, however they can be obtained through inverse heat conduction calculations. Existing inverse heat conduction methods are analyzed and classified into three categories, i.e., direct inverse methods, observer-based methods and optimization methods. The solution of the direct inverse methods is based on the linear relationship between heat flux and temperature (either in the time domain or in the frequency domain) and is calculated …

Performance Analysis Of Advanced Front Ends On The Aurora Large Vocabulary Evaluation, Naveen Parihar

Theses and Dissertations

Over the past few years, speech recognition technology performance on tasks ranging from isolated digit recognition to conversational speech has dramatically improved. Performance on limited recognition tasks in noiseree environments is comparable to that achieved by human transcribers. This advancement in automatic speech recognition technology along with an increase in the compute power of mobile devices, standardization of communication protocols, and the explosion in the popularity of the mobile devices, has created an interest in flexible voice interfaces for mobile devices. However, speech recognition performance degrades dramatically in mobile environments which are inherently noisy. In the recent past, a great …

Remote Control Of Heating, Ventilating, And Air Conditioning System With Labview, Yu-Loong Liew

Theses and Dissertations

Recent technological advances have extended the use of some old technology such as the X-10 home automation. With the use of X-10 and the Internet, a remote control home is possible. One of the major energy consumption appliances in a house is the heating, ventilating, and air conditioning system. The main objective of this study is to explore the possibility of using X-10 and the Internet to serve as an energy saving system. A simulation is used to estimate the energy consumption.

Adjusting But Not Assimilating: International Students At East Tennessee State University., Yumiko Okuda Owens

Electronic Theses and Dissertations

As the number of international students grows, the importance of understanding them grows also. This thesis analyzes in-depth interview data from 17 international students from 12 different countries at East Tennessee State University who discussed their experiences as international students. Findings show that they are willing to adjust to the new culture and a new educational system, but they are reluctant to assimilate further. After they obtain their education, most of them want to return to their home country with their degree to work, even though situations are often better in the United States. These students serve as cultural ambassadors, …

Towards A Taxonomy Of Aspect-Oriented Programming., Mario Bernard Hankerson

Electronic Theses and Dissertations

As programs continue to increase in size, it has become increasingly difficult to separate concerns into well localized modules, which leads to code tangling- crosscutting code spread throughout several modules. Thus, Aspect-Oriented Programming (AOP) offers a solution to creating modules with little or no crosscutting concerns. AOP presents the notion of aspects, and demonstrates how crosscutting concerns can be taken out of modules and placed into a centralized location.

In this paper, a taxonomy of aspect-oriented programming, as well as a basic overview and introduction of AOP, will be presented in order to assist future researchers in getting started on …

Probabilistic Design Optimization Of Built-Up Aircraft Structures With Application, Qiulin Xie

Theses and Dissertations

This thesis discusses a methodology for probabilistic design optimization of aircraft structures subject to a multidisciplinary set of requirements originating from the desire to minimize structural weight while fulfilling the demands for quality, safety, producibility, and affordability. With this design methodology as the framework, a software is developed, which is capable of performing design optimization of metallic built-up beam structures where the material properties, external load, as well as the structural dimensions are treated as probabilistic random variables. The structural and failure analyses are based on analytical and semi-empirical methods whereas the component reliability analysis is based on advanced first-order …

Fully Scalable Video Coding Using Redundant-Wavelet Multihypothesis And Motion-Compensated Temporal Filtering, Yonghui Wang

Theses and Dissertations

In this dissertation, a fully scalable video coding system is proposed. This system achieves full temporal, resolution, and fidelity scalability by combining mesh-based motion-compensated temporal filtering, multihypothesis motion compensation, and an embedded 3D wavelet-coefficient coder. The first major contribution of this work is the introduction of the redundant-wavelet multihypothesis paradigm into motion-compensated temporal filtering, which is achieved by deploying temporal filtering in the domain of a spatially redundant wavelet transform. A regular triangle mesh is used to track motion between frames, and an affine transform between mesh triangles implements motion compensation within a lifting-based temporal transform. Experimental results reveal that …

Factors Forecasting The Effect Of Rapid Prototyping Technologies On Engineering Design Education., Jeffrey Dale Mather

Electronic Theses and Dissertations

This dissertation presents information gathered and analyzed through an electronic internet-based Delphi Survey process. The purpose of this study is to identify a consensus of factors that might forecast the future effects of Rapid Prototyping (RP) technology on engineering design education when used for the purpose of overcoming the limitations of 2D representation of 3D space. The identification of consensus was developed from the collection of opinions from a panel of experts in RP technology.

Early adopters of emerging technologies can reduce risk through careful research, but decisions must often be made before significant quantitative data are available. Expert subjective …

Using The Survey Of Inmates Of State And Federal Correctional Facilities To Compare Female And Male Inmate Characteristics., Jacqueline Anita Black

Electronic Theses and Dissertations

The purpose of this study was to examine the differences between female and male prison inmates using the Survey of Inmates of State and Federal Correctional Facilities, 1997. Variables examined included current offense, criminal history, drug use history, victimization history, program participation in the institution, disciplinary infractions in the institution, family history, and interaction with family while in prison. Results indicate that male inmates have worse criminal histories and longer sentences than female inmates. Female inmates have more extensive drug use histories, greater victimization histories, more program participation in the institution, and more criminality in their families of origin than …

Interworking Methodologies For Dcom And Corba., Edwin Kraus

Electronic Theses and Dissertations

The DCOM and CORBA standards provide location-transparent access to network-resident software through language independent object interfaces. Although the two standards address similar problems, they do so in incompatible ways: DCOM clients cannot use CORBA objects, and CORBA clients cannot utilize DCOM objects, due to incompatible object system infrastructures.

This thesis investigates the performance of bridging tools to resolve the incompatibilities between DCOM and CORBA, in ways that allow clients to cross object system boundaries. Two kinds of tools were constructed and studied: tools that bind clients to services at compile time, and tools that support dynamic client-server bindings. Data developed …

The Role Of Erp57 In Hras Intracellular Trafficking And Function., Jaime Lyn Parman

Electronic Theses and Dissertations

Ras is a central player in signal transduction that mediates cellular proliferation and differentiation. Recent evidence has shown that lipid and non-lipid modified domains participate in Ras traffic and that plasma membrane association is mediated by vectorial vesicular transport from the endomembrane system. ERp57, an ER chaperone, has been shown to specifically bind farnesylated Hras but not non-farnesylated Hras. The objective of this study was to determine if ERp57 participates in Ras trafficking and function. First, the effect of ERp57 knock down by siRNA technology on Hras function was studied; there was a reduction in ERp57 cellular levels that led …

Designing Without Boundaries., Mickey Glover

Electronic Theses and Dissertations

This thesis was written as a supporting paper for a graphic design exhibit for a Master of Fine Arts Degree. The focus of my design is the creation of successful pieces of expressive graphic design that defy many traditional or formal rules of design.

This thesis begins with a brief explanation of my methods and what I feel makes for good expressive design. These include a heavy reliance upon intuition, the necessity of traditional design education, historical and contemporary influences. I then characterize my motivations and methods of creating graphic design. Followed by the relation of my work to historical …

Flavone: The Molecular And Mechanistic Study Of How A Simple Flavonoid Protects Dna From Oxidative Damage., Jennifer Dawn Dean

Electronic Theses and Dissertations

Dietary flavonoids are ubiquitous and are marketed as supplements. Characterized as antioxidants, they offer protection against a number of degenerative diseases. Flavonoid mechanics involve free radical scavenging, metal chelation, and substrate association. The skeletal structure of flavonoids is a fused ring system modified by hydroxyl, sugar, and carbohydrate additions. Flavone is a structurally simple flavonoid. Quercetin and its glycosidic analog rutin are complex structures. Using a DNA oxidation/cleavage assay, flavone reduces DNA nicking by 91%. Depending on the solvent system used, quercetin can either increase or decrease DNA oxidation. Rutin exhibits neither pro- nor antioxidant activity. The molecular interactions responsible …