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Graduate Theses, Dissertations, and Problem Reports (ETD)

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An Examination Of Informally Mentored And Non-Mentored Employees In The Cleveland Metroparks., Michelle L. Di Vito Jan 2003

An Examination Of Informally Mentored And Non-Mentored Employees In The Cleveland Metroparks., Michelle L. Di Vito

Graduate Theses, Dissertations, and Problem Reports (ETD)

The outcomes of mentor relationships have been well-documented in both business and mentoring literature. In many research studies authors have suggested that there are benefits that can be afforded to the mentor, protégé, and the organization. However, the literature is scarce when it comes to the effects of mentoring on professionals in the field of parks and recreation. The purposes of this study was to examine an informal mentoring relationship that was occurring among individuals in the Cleveland Metroparks and to compare informally mentored and non-mentored individuals on the selected outcomes of organizational socialization, job satisfaction, job motivation, career planning …

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The Effect Of Nutrition Education And "Hands On" Food Preparation Training On National Collegiate Athletic Association Division I Athletes' Nutrition Knowledge And Dietary Practices., Karin Lockhart Gould Jan 2003

The Effect Of Nutrition Education And "Hands On" Food Preparation Training On National Collegiate Athletic Association Division I Athletes' Nutrition Knowledge And Dietary Practices., Karin Lockhart Gould

Graduate Theses, Dissertations, and Problem Reports (ETD)

The purpose of the study was to determine whether collegiate athletes had a change in nutrition knowledge and, consequently, a positive change in diet intake, when given different types of nutrition education. Intervention was either participation in a newsletter group, or a cooking lesson group. Subjects were 24 athletes, male and female. The study design was a Pre-Test, Post-Test Questionnaire and Three-day Diet Record. Results were analyzed using ANOVA. Mean test score improved for both groups by 6.5% (p = 0.0004), there was no significant difference between groups. Every subject in the “Cooking class” improved on the test score from …

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An Examination Of The Habitat Requirements Of The Endangered Virginia Northern Flying Squirrel (Glaucomys Sabrinus Fuscus) By Assessing Nesting Sites, Habitat Use And The Development Of A Habitat Model., Jennifer M. Menzel Jan 2003

An Examination Of The Habitat Requirements Of The Endangered Virginia Northern Flying Squirrel (Glaucomys Sabrinus Fuscus) By Assessing Nesting Sites, Habitat Use And The Development Of A Habitat Model., Jennifer M. Menzel

Graduate Theses, Dissertations, and Problem Reports (ETD)

Little is known about nest tree use of the endangered Virginia northern flying squirrel. I compared characteristics of nest trees used by Virginia northern flying squirrels with randomly selected trees during summer and fall of 2000 and 2001. I tracked 13 squirrels to 59 nest trees. Sixty-nine percent of the nests were in cavities and 31% were leaf nests. Yellow birch, black birch and American beech were selected for nest trees more than expected. Nest trees were in larger and taller trees than trees in the surrounding area. There were a significant number of trees located near skidder and hiking …

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An Examination Of Factors Influencing The Spatial Distribution Of Foraging Bats In Pine Stands In The Southeastern United States., Michael A. Menzel Jan 2003

An Examination Of Factors Influencing The Spatial Distribution Of Foraging Bats In Pine Stands In The Southeastern United States., Michael A. Menzel

Graduate Theses, Dissertations, and Problem Reports (ETD)

The general objective of this dissertation was to determine the effect of changes in forest structure on bat activity patterns in southern pine stands. Individual studies included an investigation of the homerange, habitat use, and diet of a species of special concern common to the Southern Pine Region (SPR), Rafinesque's big-eared bat, a investigation of the relative activity of bats below, within, and above forest canopies in 5 vegetational communities, and a review of the distribution and habitat associations of the bats of the SPR. In my first study, I examined homerange size, habitat use, and diet of four reproductively …

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Effects Of Maternal Sleep Deprivation On Maternal Sensitivity And Contingent Responsiveness, Cheryl Wiedman Dec 2002

Effects Of Maternal Sleep Deprivation On Maternal Sensitivity And Contingent Responsiveness, Cheryl Wiedman

Graduate Theses, Dissertations, and Problem Reports (ETD)

Research has revealed that sleep deprivation deleteriously affects several aspects of adults' behavior, such as mood, cognition, and motor performance. One population that is subject to sleep deprivation and the accompanying consequences are parents of young infants. The present study explored how sleep deprivation, resulting from infant night awakening, affects the face-to-face interaction between mothers and their 3- to 4-month-old infants. Contrary to the proposed hypotheses the groups did not differ in sensitivity or contingent responsiveness. However, regression analyses revealed that depression and sleep deprivation together significantly predicted contingent responsiveness during the interaction. Mothers who were more depressed and sleep …

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Taxonomic Revision And Paleoecology Of Middle Devonian (Eifelian) Fishes Of The Onondaga, Columbus And Delaware Limestones Of The Eastern United States, Robert Lewis Martin Dec 2002

Taxonomic Revision And Paleoecology Of Middle Devonian (Eifelian) Fishes Of The Onondaga, Columbus And Delaware Limestones Of The Eastern United States, Robert Lewis Martin

Graduate Theses, Dissertations, and Problem Reports (ETD)

The Eifelian stage of eastern North America has produced the remains of a substantial number of fish taxa, mostly from the Onondaga Limestone of New York and the Columbus and Delaware limestones of Ohio. Fish specimens in rock matrix from the Buffalo Science Museum and the Cleveland Museum of Natural History were compared to rock samples taken from quarries in Cheektowaga, New York and Warrensburg, Ohio, in order to determine the units from which the fish specimens originally came. This method allowed reasonable inference into the provenance of the museum specimens.;The stratigraphy indicates that the seas of New York and …

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Using Waterflood Performance To Characterize Flow-Units In A Heterogeneous Reservoir, Vamsi Krishna Alla Dec 2002

Using Waterflood Performance To Characterize Flow-Units In A Heterogeneous Reservoir, Vamsi Krishna Alla

Graduate Theses, Dissertations, and Problem Reports (ETD)

Simulation of waterflood performance is used to verify the characterization of flow-units in a heterogeneous reservoir. BOAST98 software was used for simulation of waterflood performance. Two adjacent five spot patterns in the Stringtown field in West Virginia were selected to be evaluated in this study.;The predicted permeability along with the porosity from Artificial Neural Network (A.N.N) was used for primary characterization purpose and identification of flow-units in the two five spots patterns.;Two alternate simulation models were developed. The simulation model was developed using the available data and those predicted using A.N.N. to verify that the flow-units model was an accurate …

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Evaluations Of Concrete Overlays For Bridge Deck Applications, Shiwei Luo Dec 2002

Evaluations Of Concrete Overlays For Bridge Deck Applications, Shiwei Luo

Graduate Theses, Dissertations, and Problem Reports (ETD)

Protective concrete deck overlays have been successfully used by WVDOH in a number of old and new concrete bridge decks to extend their service life, but in several cases delamination and failures have been observed. A comprehensive study has been recently defined to investigate overlays performance and delamination, culminating eventually in the development of specifications in collaboration with WVDOH and the Contractors and Building Supplies Associations of WV.;The present study is an exploratory research concerned with evaluations of four types of overlays for bridge deck applications, and include: latex modified concrete (LMC), microsilica modified concrete (MMC), microsilica modified concrete with …

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Measurement Of Total Hydrocarbon Emissions With Mems Using A Portable Fid And A Novel Exhaust Flow Meter, Jared Gregory Knight Dec 2002

Measurement Of Total Hydrocarbon Emissions With Mems Using A Portable Fid And A Novel Exhaust Flow Meter, Jared Gregory Knight

Graduate Theses, Dissertations, and Problem Reports (ETD)

The objective of this study was to evaluate tools for in-field, on-board engine emissions measurements, namely, a Signal Model 3030PM hydrocarbon analyzer and McCrometer's V-Cone flow meter. The Signal Model 3030PM analyzer uses a heated flame ionizing detection scheme to measure hydrocarbons. The V-Cone is an obstructive, differential pressure flow meter that reshapes the flow profile, therefore conditioning the flow.;The Signal Model 3030PM analyzer was found to perform as well or better than the HC analyzers currently used in the FTP test cell. Besides the portability feature, the Signal Model 3030PM demonstrated better response, being able to capture the high …

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Zinc Pot Bearing Material Wear Rate As A Function Of Contact Pressure And Velocity, James M. Snider Ii Dec 2002

Zinc Pot Bearing Material Wear Rate As A Function Of Contact Pressure And Velocity, James M. Snider Ii

Graduate Theses, Dissertations, and Problem Reports (ETD)

There are currently over 50 galvanizing lines in operation in the United States producing approximately 50 million tons per year of galvanized sheet. Frequently zinc-pot hardware fails which causes production delay, resulting in an economic loss. It takes approximately 3 hours to change the zinc-pot bearings at a downtime cost of {dollar}400/h.;To predict the performance of the submerged bearings, a large number of variables must be considered. These variables include pot chemistry, temperature, line speed and line tension. With these variables it is possible to develop a design guide for sheet mill operators to determine the most cost-effective selection of …

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Evaluation Of Strut-And-Tie Modeling For Bridge Pier Applications, Thomas Nicholas Ii Dec 2002

Evaluation Of Strut-And-Tie Modeling For Bridge Pier Applications, Thomas Nicholas Ii

Graduate Theses, Dissertations, and Problem Reports (ETD)

Strut-and-tie modeling is an analysis and design tool for reinforced concrete elements which assumes that internal stresses are transferred through a truss type mechanism. The tensile ties and compressive struts serve as truss members connected by nodal zones. The internal truss idealized by the strut-and-tie model implicitly accounts for the distribution of both flexure and shear.;In 1998, the AASHTO LRFD Bridge Specifications (1998) incorporated the strut-and-tie modeling procedure for the analysis and design of deep reinforced concrete members where sectional design approaches are not valid. In most instances, hammerhead piers can be defined as deep reinforced concrete members and therefore, …

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Off-Line Thai Handwriting Recognition In Legal Amount, Watchara Chatwiriya Dec 2002

Off-Line Thai Handwriting Recognition In Legal Amount, Watchara Chatwiriya

Graduate Theses, Dissertations, and Problem Reports (ETD)

Thai handwriting in legal amounts is a challenging problem and a new field in the area of handwriting recognition research. The focus of this thesis is to implement Thai handwriting recognition system. A preliminary data set of Thai handwriting in legal amounts is designed. The samples in the data set are characters and words of the Thai legal amounts and a set of legal amounts phrases collected from a number of native Thai volunteers. At the preprocessing and recognition process, techniques are introduced to improve the characters recognition rates. The characters are divided into two smaller subgroups by their writing …

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Aerodynamic Drag Reduction Of A Racing Motorcycle Through Vortex Generation, Gerald M. Angle Ii Dec 2002

Aerodynamic Drag Reduction Of A Racing Motorcycle Through Vortex Generation, Gerald M. Angle Ii

Graduate Theses, Dissertations, and Problem Reports (ETD)

The aerodynamic drag of a racing-class motorcycle can be accomplished through either an overall redesign of the surfaces or through some type of flow control mechanism. Due to limitations on the size of the exterior shape the flow control techniques are more practical. Small metal vanes, known as vortex generators were used in this research to mix higher energy freestream air with the lower energy boundary layer, delaying boundary layer growth and separation. In testing performed in the West Virginia University Closed Loop Wind Tunnel a maximum reduction of 118 drag counts (10.1%) was measured. Due to an abnormally high …

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Automation Of The Superpave Mix Design Process For The West Virginia Division Of Highways, Martin Felix Padula Dec 2002

Automation Of The Superpave Mix Design Process For The West Virginia Division Of Highways, Martin Felix Padula

Graduate Theses, Dissertations, and Problem Reports (ETD)

During the fifty years between 1940 and 1990, the nation's bituminous roadways were predominantly designed using either the Marshall or Hveem method. The Superior Performing Asphalt Pavements (Superpave)(TM) method was later developed to address the issues of increased traffic volumes and heavier loads on the nation's roadways. This new mix design process relies on volumetric calculations and graphs, which are cumbersome to perform by hand. There is no current public domain Superpave software package available which is independent of any commercial laboratory product and available to an asphalt mix designer. A component of this research project consisted of creating a …

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Early Component-Based Reliability Assessment Using Uml Based Software Models, William Black Smith V Dec 2002

Early Component-Based Reliability Assessment Using Uml Based Software Models, William Black Smith V

Graduate Theses, Dissertations, and Problem Reports (ETD)

In the last decade, software has grown in complexity and size, while development timelines have diminished. As a result, component-based software engineering is becoming routine. Component-based software reliability assessment combines the architecture of the system with the reliability of the components to obtain the system reliability. This allows developers to produce a reliable system and testers to focus on the vulnerable areas.;This thesis discusses a tool developed to implement the methodology previously created for early reliability assessment of component-based systems. The tool, Early Component-based Reliability Assessment (ECRA), uses Rational Rose Unified Modeling Language (UML) diagrams to predict the reliability of …

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Harvested Log Damage And Value Loss Associated With Two Ground-Based Harvesting Systems In Central Appalachia, Michael R. Vanderberg Dec 2002

Harvested Log Damage And Value Loss Associated With Two Ground-Based Harvesting Systems In Central Appalachia, Michael R. Vanderberg

Graduate Theses, Dissertations, and Problem Reports (ETD)

Damage is often seen as an important consideration when conducting partial harvests in hardwood stands, as excessive damage to residual trees will significantly reduce the potential value of the residual stand. Damage to harvested logs, especially hardwood saw and veneer logs can be an even more important concern relative to value loss associated with log degrade. The log damage and value loss were examined by harvesting system, felling function, species, and damage type in central Appalachia. Observations were made of all grade logs during the felling, skidding, decking/sorting, and loading functions of the harvesting operations. Saw logs or veneer logs …

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Three Essays On Data Contaminants, Outliers And Macroeconomic Time Series, Joseph Michael Palardy Dec 2002

Three Essays On Data Contaminants, Outliers And Macroeconomic Time Series, Joseph Michael Palardy

Graduate Theses, Dissertations, and Problem Reports (ETD)

This thesis illustrates the effects of outliers on forecasting and on simulated general equilibrium models. The first essay demonstrates that using robust-estimation techniques may greatly improve long-run autoregressive forecasts if the model to be estimated is generated from a heavy-tailed distribution. The second essay continues with a similar theme. It shows that in the context of random contamination models, automatic autoregressive selection criteria may be severely inaccurate. If the estimated model is misspecified, forecasting accuracy may be considerably reduced. Once again, robust-estimation techniques limit the influence of the aberrant data---in this case from the contaminating distribution. The third essay demonstrates …

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Essays In International Asset Pricing, Hong Wu Dec 2002

Essays In International Asset Pricing, Hong Wu

Graduate Theses, Dissertations, and Problem Reports (ETD)

This dissertation attempts to assess the ability of various international asset pricing models in explaining asset returns across countries. The Introduction discusses the links between the chapters, the contributions I make and states what I have learned from the dissertation. Chapter 1 of the dissertation derives (in a discrete time framework to facilitate the transition from theory to empirical analysis) a consumption based capital asset pricing model with the added feature of a "keeping up with the Joneses" utility function and applies it in an international context to explain return differences across countries. Relying on the Lucas (1978) asset pricing …

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Calculation Of Thermal Expansion Of Iron -Aluminides With Transition Metal Additives, Tatiana Seletskaia Dec 2002

Calculation Of Thermal Expansion Of Iron -Aluminides With Transition Metal Additives, Tatiana Seletskaia

Graduate Theses, Dissertations, and Problem Reports (ETD)

The addition of transition metal elements can significantly modify physical properties of intermetalic compounds. We studied the influence of Mo and V additives on thermal expansion coefficient (CTE) of Fe3Al and FeAl over the wide range of temperatures. The site preference of both transition metals was determined by FP-LMTO method. Fe3Al in DO3 structure has three non-equivalent lattice sites: FeI site surrounded by eight iron atoms, FeII site with four iron and four aluminum nearest neighbors and Al site. Our calculations show that Fe, site is energetically more favorable for both Mo and V. The obtained site-selection energies of Mo …

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Gasmak2 Model For Longwall Gob Gas Emission, Qinghua Jin Dec 2002

Gasmak2 Model For Longwall Gob Gas Emission, Qinghua Jin

Graduate Theses, Dissertations, and Problem Reports (ETD)

This thesis discusses the development and improvement of an empirical model---GASMAK2, that describes methane control requirements for the longwalling coal in gassy areas. This is not a theoretical model; it uses an empirically determined gas emission rate as an input. The computer program divides Longwall panels into segments, keeps track of the face advance and generates emission rates and volumes for both the entire panel and for individual zones within the panel. This model is Windows-based, uses the full capabilities of the Windows environment to provide a user-friendly program, and can aid in the determination of the number, size and …

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Enhanced Controls For Oxy-Fuel-Fired Batch Tank During Glass Working Period, Ranjit Menon Unnikrishnan Dec 2002

Enhanced Controls For Oxy-Fuel-Fired Batch Tank During Glass Working Period, Ranjit Menon Unnikrishnan

Graduate Theses, Dissertations, and Problem Reports (ETD)

One of the most dynamic developments in the glass industry has been the use of oxy-fuel combustion for melting glass. This new technology has not only increased the energy efficiency of the glass industry, but also has reduced its environmental impacts.;A model has been developed to take into account the effect of pulling the glass for nine hours during the working period on the reduced amount of fuel required for the batch tank, as well as the resulting transients.;The two primary goals of this thesis were to develop a transient transfer function for the batch tank and to develop an …

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Assessing The Return On Investment For Various Types Of Break-In Training, Kim L. Trenbath Dec 2002

Assessing The Return On Investment For Various Types Of Break-In Training, Kim L. Trenbath

Graduate Theses, Dissertations, and Problem Reports (ETD)

This thesis presents a Return on Investment, or ROI, model for various types of break-in training by utilizing employee learning curves as a factor of the cost. The model captures the additional profit earned when a company makes an investment in break-in training, training employees receive at the beginning of their employment. Research involves developing employee learning curves for break-in training vs. traditional training through experimentation. The thesis utilizes the improvement in the learning curve as the driving factor behind the profits. The ROI model is a comparison between the profits, or benefits minus cost, of a traditional and break-in …

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Geospatial And Statistical Foundations For Streamflow Synthesis In West Virginia, Annie J. Morris Dec 2002

Geospatial And Statistical Foundations For Streamflow Synthesis In West Virginia, Annie J. Morris

Graduate Theses, Dissertations, and Problem Reports (ETD)

Streamflow values must be synthesized for locations where flow measurement stations, in applications such as the West Virginia SWAP program, are lacking or where only intermittent measurements are available (West Virginia Department of Health and Human Resources, 1999). This research describes an effort to improve upon the current synthetic streamflow model by incorporating geomorphic, geologic, and hydrogeologic measurements. Principal components analysis (PCA) was used to derive a set of master variables that characterize stream flow in West Virginia based on historical data from 29 watersheds. The relationships between variables affecting stream flow were also analyzed using cluster and correlation analysis …

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Chemical And Physical Properties Of Acid Mine Drainage Floc, Catherine M. Bohan Dec 2002

Chemical And Physical Properties Of Acid Mine Drainage Floc, Catherine M. Bohan

Graduate Theses, Dissertations, and Problem Reports (ETD)

Acid mine drainage is a serious environmental concern in many regions worldwide, but especially in coal and metal mining regions. These acid drainages are often treated with chemicals to raise the pH of the water and to cause neutralization and precipitation of metals. As neutralization occurs, a looser gelatinous material called "floc" is produced. The effects of neutralizing chemical, pH, sulfate to iron molar ratio, and solids concentration on floc settling properties were determined in synthetic acid mine drainage. Sulfate was the important factor affecting floc physicochemical properties, increasing settling times from 25-125% and decreasing settling rates from 24-63%. Neutralization …

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Relationships Among Spirituality, Cognitive Processing, And Personal Control, Karri Bonner Dec 2002

Relationships Among Spirituality, Cognitive Processing, And Personal Control, Karri Bonner

Graduate Theses, Dissertations, and Problem Reports (ETD)

The current study was a cross-sectional investigation of how spirituality as a positive life theme might be related to a unique style of cognitive processing. Of secondary interest were the relationships among spirituality and other personal control variables. Using memory recall and recognition tasks, the current study sought to determine whether or not participants would attend more to positive, negative, neutral, or religious words. The results of the current study indicate that (1) older adults are more spiritual than younger adults, (2) higher spirituality is related to higher levels of optimism, (3) spirituality is related to an external locus of …

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Students' Perceptions Of Nonnative Esl Teachers, Etelvo Ramos Filho Dec 2002

Students' Perceptions Of Nonnative Esl Teachers, Etelvo Ramos Filho

Graduate Theses, Dissertations, and Problem Reports (ETD)

There has been a lot of research on native speaker and nonnative speaker teachers of English as a second language. Authors have addressed negative and positive aspects of these two classes. However, there has not been much research on how students of English as a second language see their nonnative instructors. This qualitative study addresses this issue. In this study I investigated how learners perceive their nonnative speaker teachers. The data were collected through a questionnaire, class observations, and audio-taped interviews with the 16 participants. Two nonnative instructors, who taught the participants, were interviewed also. Overall, despite some negative perceptions, …

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Esl Students' Perceptions Of Role-Play Activities, Flavia Bonella Ribeiro Ramos Dec 2002

Esl Students' Perceptions Of Role-Play Activities, Flavia Bonella Ribeiro Ramos

Graduate Theses, Dissertations, and Problem Reports (ETD)

There has been significant discussion on the use of role-play activities. Proponents of role-play believe that the activity provides learners with opportunities to communicate freely and spontaneously in different situations. However, researchers have also identified issues that may jeopardize the effectiveness of role-plays. Despite the debate, few studies have focused on the students' point of view. The current qualitative study investigated ESL students' perceptions of role-play activities drawing on observations, questionnaires, and interviews. The results showed that the participants recognized several benefits (e.g., improving oral proficiency, acquiring vocabulary, and rehearsing for real-life communication) while also acknowledging some limitations such as …

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Long-Term Creep Of Encased Polymer Liners, Shalini Rangarajan Aug 2002

Long-Term Creep Of Encased Polymer Liners, Shalini Rangarajan

Graduate Theses, Dissertations, and Problem Reports (ETD)

Due to increasing costs and inconveniences in replacing deteriorated sewer pipelines by conventional excavation methods, the trenchless or 'no-dig' technology is being extensively used. In trenchless technology, a polymer or reinforced polymer is applied to the inside of the deteriorated host pipe to prevent ground water from seeping into the sewer pipelines. In this work, a testing method was developed to determine the long-term creep behavior of encased polymer liners.;Short-term tests, following the ASTM D790 procedure, were conducted on pipe liner samples to determine the initial elastic modulus and compare it to the elastic modulus obtained from long-term testing of …

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Telecommunications For A Deregulated Power Industry, Biju Naduvathuparambil Aug 2002

Telecommunications For A Deregulated Power Industry, Biju Naduvathuparambil

Graduate Theses, Dissertations, and Problem Reports (ETD)

Telecommunication plays a very important role in the effective monitoring and control of the power grid. Deregulation of the US power industry has enabled utilities to explore various communication options and advanced technologies. Utilities are increasingly investing in distributed resources, dynamic real-time monitoring, automated meter reading, and value added services like home energy management systems and broadband access for its customers. Telecommunication options like power line communications (PLC) and satellites are fast replacing legacy telephone and microwave systems in the US.;The objective of this thesis is to study the communication options that are available for utilities today. Phasor measurement units …

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Relations Of Nesting Behavior, Nest Predators, And Nesting Success Of Wood Thrushes (Hylocichla Mustelina) To Habitat Characteristics At Multiple Scales, Gary E. Williams Jr. Aug 2002

Relations Of Nesting Behavior, Nest Predators, And Nesting Success Of Wood Thrushes (Hylocichla Mustelina) To Habitat Characteristics At Multiple Scales, Gary E. Williams Jr.

Graduate Theses, Dissertations, and Problem Reports (ETD)

During 1998--2000, I examined the relationship between the reproductive success of a declining Neotropical migrant songbird, the wood thrush ( Hylocichla mustelina), and surrounding habitat within the highly forested region encompassing the northwestern portion of the Monongahela National Forest, West Virginia, USA. I measured nest fate, food delivery rates, and nest attendance rates of 56 videotaped nests and then related these variables to habitat measured at three concentric scales: nest site (11.3 m radius), territory (100 m), and landscape (1000 m). Predation was the most common source of failure (23 of 26 failed nests), and southern flying squirrels ( Glaucomys …

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