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Investigating Spelling Through Generative Instruction, Linda Ross May 2000

Investigating Spelling Through Generative Instruction, Linda Ross

Graduate Theses, Dissertations, and Problem Reports (ETD)

The present study examined the components of generative instruction through the teaching of spelling rules. In Experiment 1, the effects of direct versus passive instruction and rate building versus equal-time practice were examined. Forty undergraduate students with below average spelling skills participated. Although there were better performances under passive instruction on some aspects of the posttests, and improved performance with rate-building practice on others, these results were not systematic and were contradicted by other results. The effects of rate building versus an equal amount of practice on the training and posttest application of spelling rules were examined in Experiment 2. …

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Inventory And Prediction Of Heavy-Duty Diesel Vehicle Emissions, Justin Michael Kern May 2000

Inventory And Prediction Of Heavy-Duty Diesel Vehicle Emissions, Justin Michael Kern

Graduate Theses, Dissertations, and Problem Reports (ETD)

A vehicle emissions inventory is an account of emissions produced by all vehicles in an area. Many different factors can affect the emissions and the measurement of the emissions that are used to create an emissions inventory. These factors for heavy-duty diesel vehicles have been addressed and their relative affect on emissions was evaluated from test data and analytical analyses. These elements can affect the emissions by a factor of 15 depending on testing conditions.;One purpose that an emissions database serves is to provide a source for predicting future emissions for a specific vehicle or many vehicles in a general …

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Seepage Through Longitudinal Drainage Trenches, Benjamin T. Staud May 2000

Seepage Through Longitudinal Drainage Trenches, Benjamin T. Staud

Graduate Theses, Dissertations, and Problem Reports (ETD)

The objective of this study was to determine how the longitudinal drain system works under laboratory conditions. In this study, a bench-scale model was constructed to assess the flow patterns caused by a trench drain in a slope. The experimental variables include the trench spacing (w), seepage depth (h), and slope angle (theta). In the experimental program, four values of slope angle, three values of trench spacing and three values of seepage depth were considered. Each experiment was performed twice to ensure that the measurements are reproducible. The soil type for the experimental program was selected on the basis of …

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Timing Of Alveolar Cleft Bone Grafting In Maxillary Alveolar Cleft Defects, Richard Morrow Crout May 2000

Timing Of Alveolar Cleft Bone Grafting In Maxillary Alveolar Cleft Defects, Richard Morrow Crout

Graduate Theses, Dissertations, and Problem Reports (ETD)

Numerous methods have been attempted to identify the best time for secondary alveolar cleft bone grafting, including chronological age, skeletal age, and dental age. However, few studies have employed objective methods of assessment that would permit statistical analysis. Fifty-nine patients with clefts of the alveolus who acquired secondary alveolar cleft grafts at the Lancaster Cleft Lip and Palate Clinic were studied. A total of 74 affected areas from 15 bilateral and 44 unilateral alveolar cleft patients were available. Timing of the graft was determined utilizing root development of the involved canine, as compared to crown length, from a high quality …

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Designing Neural Networks For The Prediction Of The Drilling Parameters For Kuwait Oil And Gas Fields, Abdulrahman F. Al-Rashidi May 2000

Designing Neural Networks For The Prediction Of The Drilling Parameters For Kuwait Oil And Gas Fields, Abdulrahman F. Al-Rashidi

Graduate Theses, Dissertations, and Problem Reports (ETD)

In this study a new methodology was developed to predict the drilling parameters using the Artificial Neural Network. Three models were developed to predict bit type, rate of penetration (ROP), and cost-per-foot (cost/ft), respectively.;The prediction of bit type and other drilling parameters from the current available data is an important criterion in selecting the most cost efficient bit. History of bit runs plays an important factor in bit selection and bit design. Based on field data, the selection of bit type can be accomplished by the use of a neural network as an alternative bit selection method.;Three drilling parameters were …

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Foodborne Pathogens In Poultry Production And Post-Harvest Control, Rajesh R. Nayak May 2000

Foodborne Pathogens In Poultry Production And Post-Harvest Control, Rajesh R. Nayak

Graduate Theses, Dissertations, and Problem Reports (ETD)

A comprehensive ecological survey was conducted from April 1997 to June 1999 on four turkey flocks (F5-F8) to identify the preharvest sources of Salmonella colonization. Generic E. coli and total coliforms were enumerated as indicators of fecal contamination in F7 and F8. Turkey cecal and crop contents, litter, drinkers, air, feed, feeder contents, and environmental swabs were sampled and tested for Salmonella and E. coli. Salmonella was isolated from 13% of litter, 11% of turkey ceca, 10% of drinkers, and 5% of swabs. Escherichia coli and total coliforms were detected in 45 and 53% of samples, respectively. Salmonella heidelberg was …

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Effects Of Cumulative Practice On Mathematics Problem -Solving Behavior, Kristin Hobbs Hazlett May 2000

Effects Of Cumulative Practice On Mathematics Problem -Solving Behavior, Kristin Hobbs Hazlett

Graduate Theses, Dissertations, and Problem Reports (ETD)

Mathematics education has long been in need of improved methods of instruction, particularly in the area of problem-solving skills. This study compared three methods of training rules about laws of exponents and order of operations. All three training methods used the same mastery criterion for training each rule and included the same number of practice trials during review sessions that preceded each test. The difference between conditions involved what types of problems were presented during the reviews. For each review session, the cumulative group (n = 11) practiced 50 problems covering all rules learned up to that review. The simple …

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Iron And Acid Removal From Acid Mine Drainage In Open Limestone Systems, Qingyun Sun May 2000

Iron And Acid Removal From Acid Mine Drainage In Open Limestone Systems, Qingyun Sun

Graduate Theses, Dissertations, and Problem Reports (ETD)

Passive systems, like wetlands, anoxic limestone drains, and open limestone channels, show promise for treating acid mine drainage (AMD) discharges. Open limestone channels have been developed for over ten years and the treatment effectiveness of AMD by open limestone systems shows wide variation. The variation is due to site conditions (slope and size of the limestone channel) but more importantly to the surface area of the limestone and iron concentrations in the water. Iron in AMD coats the limestone in open limestone systems thereby reducing the surface area available for reaction. Over time, the limestone appears to lose its ability …

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Ab Initio Studies Of Anisotropic Magnetism In Uranium And Cerium Monopnictides And Monochalcogenides, Eric Mason Collins May 2000

Ab Initio Studies Of Anisotropic Magnetism In Uranium And Cerium Monopnictides And Monochalcogenides, Eric Mason Collins

Graduate Theses, Dissertations, and Problem Reports (ETD)

We have applied two ab initio based methods to investigate the origin in the electronic structure of the unusual magnetic behavior of the cerium and uranium monopnictides and monochalcogenides. First, we have carried out spin-polarized electronic structure calculations, based on the full potential linear muffin tin (FPLMTO) method, with spin polarization (orbital polarization only via spin-orbit coupling) and also with orbital polarization correction. Second, we have carried out ab initio based calculations synthesizing (1) a phenomenological theory of orbitally driven magnetism based on the Anderson and Kondo, lattice model which incorporates explicitly the hybridization induced and the Coulomb exchange interactions …

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Inservice And Preservice Teacher Attitudes Toward Creative Writing As A Learning Mechanism, Edwin Davis Greenlee May 2000

Inservice And Preservice Teacher Attitudes Toward Creative Writing As A Learning Mechanism, Edwin Davis Greenlee

Graduate Theses, Dissertations, and Problem Reports (ETD)

Most of us in the teaching profession are aware by now that writing is inextricably interlocked with learning, thinking, and knowing. The more students write, the more knowledge they acquire. As Janet Emig informs us: "Writing serves learning uniquely because writing as process-and-product possesses a cluster of attributes that correspond uniquely to certain powerful learning strategies" (1983, 34). In other words, Emig (1971) believes that when using writing to learn, students can become involved in learning activities. Writing as learning permits students to integrate, connect, reconsider, evaluate, and personally shape their thoughts and ideas. By writing and rewriting, students can …

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Refined Turbulence Models For Simulation Of Ic -Engine Cylinder Flows, Ibrahim Yavuz May 2000

Refined Turbulence Models For Simulation Of Ic -Engine Cylinder Flows, Ibrahim Yavuz

Graduate Theses, Dissertations, and Problem Reports (ETD)

Turbulence and turbulent mixing are two of the most important factors that influence the efficiency and emissions level in internal combustion (IC) engines, particularly for diesel engines. This study has been performed with the premise to accurately predict in-cylinder turbulence by employing the large eddy simulation (LES) technique. In order to assess the turbulence scales involved correctly, a review of measured and computed scales relevant to IC engines is conducted. An assessment of these is made in comparison with the self-imposed scales of the engine itself. This assessment focuses on the influence of combustion, compression ratio, initial conditions and numerical …

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Rollover Stability Of Partially Filled Heavy-Duty Elliptical Tankers Using Trammel Pendulums To Simulate Fluid Sloshing, Mohamed Ibrahim Salem May 2000

Rollover Stability Of Partially Filled Heavy-Duty Elliptical Tankers Using Trammel Pendulums To Simulate Fluid Sloshing, Mohamed Ibrahim Salem

Graduate Theses, Dissertations, and Problem Reports (ETD)

Partially filled tankers undergoing turns or lane change maneuvers have a lower rollover threshold than any other type of vehicle. In order to study and simulate the lateral fluid sloshing effects in partially filled elliptical and cylindrical tankers a trammel pendulum has been utilized. The fundamental basis of selecting the appropriate pendulum parameters have been obtained by matching the pendulum dynamic effects with fluid sloshing dynamic effects obtained using Finite Element (FE) fluid models. Elliptical tankers with different aspect ratios and different levels of fill were considered. The trammel pendulum effects were verified against fluid models from two packages (FLUENT …

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Common Factors Leading To County Boards Of Education Financial Deficits, David L. Stewart May 2000

Common Factors Leading To County Boards Of Education Financial Deficits, David L. Stewart

Graduate Theses, Dissertations, and Problem Reports (ETD)

This study reviewed and analyzed budget deficits incurred by county boards of education in West Virginia and determined why increasing numbers of county boards of education have experienced deficit spending since the enactment of Senate Bill 14.;This study utilized a descriptive research design. The West Virginia Department of Education provided deficit, enrollment, and personnel data; all fifty-five county superintendents and treasurers were surveyed to determine the frequency and cause of budget deficits. One hundred percent of both groups responded to the survey.;In conclusion, factors contributing to county boards of education experiencing financial deficit included: (1) reduction of numbers of employees …

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Factors Found When Integrating Computer Technology In A Small Rural School District, Edward Dale Jeffreys May 2000

Factors Found When Integrating Computer Technology In A Small Rural School District, Edward Dale Jeffreys

Graduate Theses, Dissertations, and Problem Reports (ETD)

The purpose of this research study was to provide school board members, school administrators, and teachers with information required in developing a successful plan for the integration of computer technology into the classroom curriculum. The stated problem of this research was to identify and analyze the factors that inhibit and enhance the implementation of computer technology into the classrooms of a small rural school district.;A review of the literature was conducted in the following areas: (a) the use of computer technology in K--12 rural school districts; (b) enhancers to the integration of computer technology into the classroom curriculum in small …

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Contrawound Toroidal Helical Antenna Modeling Using The Fdtd Method, Khaled Mohammad Elsherbini May 2000

Contrawound Toroidal Helical Antenna Modeling Using The Fdtd Method, Khaled Mohammad Elsherbini

Graduate Theses, Dissertations, and Problem Reports (ETD)

The contrawound toroidal helical antenna (CTHA) is a patented antenna developed at the Center for Industrial Research Applications (CIRA) of West Virginia University. In this study, a computer numerical model was built to simulate the behavior of printed circuit board versions of the CTHA. The numerical model was built upon the finite difference time domain method (FDTD). The results were compared to results from physical antennas, obtained from the CIRA anechoic chamber located in the WVU hanger, to verify the validity of the results of the numerical model. The results from both the numerical and experimental models were also used …

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Porosity Distribution Prediction Using Artificial Neural Networks, Fahad Abdullah Al-Qahtani May 2000

Porosity Distribution Prediction Using Artificial Neural Networks, Fahad Abdullah Al-Qahtani

Graduate Theses, Dissertations, and Problem Reports (ETD)

Reservoir characterization plays a very important role in the petroleum industry, especially to the economic success of the reservoir development. Heterogeneity can complicate the evaluation of reservoir properties. Porosity is the primary key to a reliable reservoir model.;Several studies in the literature indicated that accurate evaluation of reservoir properties can be made by the analysis of electric logs. Stringtown oil field in Tyler and Wetzel counties in the northwestern part of West Virginia was selected to conduct this study.;Artificial Neural Networks (ANN) is one of the latest technologies available to the petroleum industry. The objective of this study was to …

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Preliminary Investigation Of Culvert Outlet Baffle Block Geometry And Energy Dissipation, Conrad Russell Baston May 2000

Preliminary Investigation Of Culvert Outlet Baffle Block Geometry And Energy Dissipation, Conrad Russell Baston

Graduate Theses, Dissertations, and Problem Reports (ETD)

One method used to attenuate high-energy flow at culvert outlets, is the construction of baffle blocks. Baffle blocks are devices, generally of simplistic geometry, that impact the flow and reduce energy. The current baffle design used by the WVDOH has in some instances experienced problems with excessive sedimentation to the extent of causing culvert failure. The purpose of this investigation was to construct a testing device to allow for the testing of physical culvert and baffle block models and produce a preliminary design that would perform more efficiently than the current design. The new design would need to meet the …

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Gas Production Forecasting Using Automatic Type Curve Matching, Walter Jonathan Diazgranados May 2000

Gas Production Forecasting Using Automatic Type Curve Matching, Walter Jonathan Diazgranados

Graduate Theses, Dissertations, and Problem Reports (ETD)

As the demand for natural gas has increased in the last years, also the need for forecast reliable gas recoveries. Gas type curves are one of the methods utilized to estimate future well performance. The purpose of this study is the utilization of the Aminian et al type curves to model gas well performance. Unlike other studies developed in the past, Aminian et al type curves account for important factors ignored in the derivation of the proposed theoretical solutions. Thus, the pressure dependency of gas viscosity and compressibility, as well as the pressure loss owing to non-Darcy flow, make of …

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Point Doppler Velocimetry Measurements In Circular Jets, Patrick Michael Collins May 2000

Point Doppler Velocimetry Measurements In Circular Jets, Patrick Michael Collins

Graduate Theses, Dissertations, and Problem Reports (ETD)

Improvements have been made to an existing 2-component Point Doppler Velocimetry (PDV) system to improve instrument accuracy and repeatability and to reduce mean velocity offset. Most importantly, the original iodine cells have been replaced by vapor-limited iodine cells that are not influenced by room temperature variations. PDV is a non-intrusive laser based flow measurement technique with capabilities that are similar to hot wire anemometry, but without inserting a probe into the flow. The insertion of a probe into a flow can affect the flow, resulting in inaccurate measurements.;PDV measurements for 1 inch diameter standard, swirling, and annular jets have been …

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Java-Based Midi Interface For Robot Control, Gaurav Subhash Harode May 2000

Java-Based Midi Interface For Robot Control, Gaurav Subhash Harode

Graduate Theses, Dissertations, and Problem Reports (ETD)

Robot offers an excellent means of utilizing high level technology to make a given manufacturing operation more profitable and competitive. Apart from manufacturing, robots are also being utilized in the areas of medicine and agriculture with great returns. Robotic applications now require multiple robots working in a coordinated manner, something similar to an orchestra. This lead to the concept of a Robotic Instrument Digital Interfacing (RIDI) system for real time coordinated control of robotic devices. It provides a novel runtime environment that supports the building and deployment of distributed robotic devices.;The objective of this research is to design and develop …

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Evaluation Of Lubricants For Cold Forming Of Steels By Double-Cup Extrusion Tests, Shivakumaran Bharadwaj Venkataraman May 2000

Evaluation Of Lubricants For Cold Forming Of Steels By Double-Cup Extrusion Tests, Shivakumaran Bharadwaj Venkataraman

Graduate Theses, Dissertations, and Problem Reports (ETD)

The double-cup extrusion testing method was chosen for measuring the pressure and material flow parameters in order to quantify the frictional shear factor between the workpiece and the forming tool in cold metal forming processes. The test was adapted to be used under production conditions and applied to characterize and compare the lubrication properties of different types of lubricants and coatings.;It was found to be a useful approach to estimate the relative efficiency of different lubricants and coating methods. It indicated that one specific lubricant has significantly superior lubricant characteristics than others.;FEA analysis of the experimental setup was constructed to …

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Effect Of Debris-Induced Lift-Off On Magnetic Flux Leakage Inspection Results, Francisco Louis Valentine May 2000

Effect Of Debris-Induced Lift-Off On Magnetic Flux Leakage Inspection Results, Francisco Louis Valentine

Graduate Theses, Dissertations, and Problem Reports (ETD)

Debris is present in all pipelines and has the potential to cause debris-induced lift-off in magnetic flux leakage inspection tools. A test apparatus was developed to qualitatively examine the effect of debris-induced lift-off.;The results of this research indicate that debris-induced lift-off has a detrimental effect on magnetic flux leakage data. This increases the potential of pipeline defects being either undersized or missed.;To reduce or eliminate the effects of debris-induced lift-off, the pipeline should be regularly cleaned. This minimizes the occurrence of large accumulations of debris. If it is determined that debris is present in a pipeline, even in small quantities, …

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Preliminary Investigation Of Energy Dissipation At Culvert Outlets Using A Riprap Step, Belinda M. Weikle May 2000

Preliminary Investigation Of Energy Dissipation At Culvert Outlets Using A Riprap Step, Belinda M. Weikle

Graduate Theses, Dissertations, and Problem Reports (ETD)

One method used to attenuate high-energy flow at culvert outlets is the construction of a riprap energy dissipator. The current riprap design used by the WVDOH experiences problems with excessive sedimentation and is only applicable at culvert outlets where the flow velocity is low. The purpose of this investigation was to construct a testing device to allow for the testing of physical models and produce a preliminary riprap step design that would perform more effectively than the current design. The new design proposed meets the following criteria. It is: (1) Easily constructed on site using available materials; (2) Economically efficient; …

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Evaluation Of The International 4-H Youth Exchange (Ifye) Program, Mary Elizabeth Williams May 2000

Evaluation Of The International 4-H Youth Exchange (Ifye) Program, Mary Elizabeth Williams

Graduate Theses, Dissertations, and Problem Reports (ETD)

The purpose of this study was to examine the extent to which the International 4-H Program achieved its objectives regarding positive cross-cultural attitudes, life leadership skills, and host culture knowledge through the six-month International 4-H Youth Exchange (IFYE) Program. The population consisted of the twenty-one 1999 IFYE six-month representatives. A descriptive census survey was used to collect the data for the study. Each participant completed pre- and post-exchange evaluations while attending the program orientation and debriefing at the National 4-H Center. The major finding of this study was the representative's significant gain in host culture knowledge. The IFYE representatives' positive …

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Web-Based Workflow In Secure Collaborative Telemedicine, Vijayanand Ranganath Bharadwaj May 2000

Web-Based Workflow In Secure Collaborative Telemedicine, Vijayanand Ranganath Bharadwaj

Graduate Theses, Dissertations, and Problem Reports (ETD)

Workflow involves the automation of a business process in whole or part with movement of information and tasks between parties according to a set of rules. The ubiquitous nature of the Internet and WWW prompts us to investigate how these entities can be fully exploited to improve the efficiency of any workflow process in a reliable, secure fashion.;This research effort alms to investigate the utility of the internet and specifically the WWW in providing a substrate for complex workflow and to demonstrate that workflow with a high degree of automation and ability to interface with disparate data sources can be …

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Media Use And Perceptions Of Binge Drinking, Jason L. Price May 2000

Media Use And Perceptions Of Binge Drinking, Jason L. Price

Graduate Theses, Dissertations, and Problem Reports (ETD)

Examines media use by college students and their perceptions of campus alcohol use; literature review of binge drinking rates and studies, media use studies, and perceptions of alcohol use studies; overview of research methods and findings; analysis of data obtained through questionnaires distributed to undergraduates; conclusions.

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Factors Influencing Ruffed Grouse Productivity And Chick Survival In West Virginia, Christopher A. Dobony May 2000

Factors Influencing Ruffed Grouse Productivity And Chick Survival In West Virginia, Christopher A. Dobony

Graduate Theses, Dissertations, and Problem Reports (ETD)

I examined productivity, chick mortality, and factors influencing ruffed grouse (Bonasa umbellus) chick survival in West Virginia during 1998--1999. The proportion of hens that attempted to nest, hen success, average clutch size, and hatch dates were similar between age classes, between sites, and between years. Hatch dates were similar between age classes and between sites. Depredation was the major cause of nest failure. I examined 2 types of radio transmitter attachment methods (glue-on and collar type) to determine mortality and survival in ≤3-day-old grouse chicks. Glue-on transmitters performed poorly, whereas collar types had excellent retention time. Chick survival was low …

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Parental Influences On High School Student Achievement And Goals, Richard K. York May 2000

Parental Influences On High School Student Achievement And Goals, Richard K. York

Graduate Theses, Dissertations, and Problem Reports (ETD)

The present study examined parental influences on educational and career goals of high school students. Data on educational and career goals from the Perceived Life Chances Interview were derived from 124 rural adolescents. One hundred of their mothers and 36 of their fathers completed the Inventory of Parental Influence which consists of five subscales of Parental Involvement/Help, Psychological Support, Parental Pressure, Pressure for Intellectual Development, and Time Management/Monitoring. Responses from the Perceived Life Chances Interview were qualitatively analyzed in order to derive categories that reflected the varying responses from participants. These categories served as dependent variables in a series of …

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Individual Differences And Suggestibility Of Children's Eyewitness Memory Reports, Robin Myers Bartlett May 2000

Individual Differences And Suggestibility Of Children's Eyewitness Memory Reports, Robin Myers Bartlett

Graduate Theses, Dissertations, and Problem Reports (ETD)

A significant amount of recent research in the area of children's eyewitness memory has been aimed at examining children's vulnerability to suggestion. Numerous experimental factors have been found to impact children's suggestibility including the use of leading questions. However, research in this area has yet to investigate whether characteristics of the child play a role in susceptibility to suggestion. Accordingly, the present study was designed to combine the experimental and individual differences approaches to research to achieve a better understanding of children's susceptibility to suggestive questioning techniques. Ninety-six 9--12-year-old children and a parent participated in the study. Children viewed a …

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Predicting Permeability And Flow Capacity Distribution With Back-Propagation Artificial Neural Networks, Alexis Jose Riera May 2000

Predicting Permeability And Flow Capacity Distribution With Back-Propagation Artificial Neural Networks, Alexis Jose Riera

Graduate Theses, Dissertations, and Problem Reports (ETD)

The prediction of permeability is a critical, key step for reservoir modeling and management of oil recovery operations. Previous studies have successfully demonstrated that the new technology called Artificial Neural Network (ANN), a biologically inspired, massive parallel, distributed information processing system, is an excellent tool for permeability predictions using well log data. This technology overcomes the drawbacks caused by the inherent heterogeneity of the reservoir and lack of sufficient cores or pressure transient tests, allowing to define reservoir characterization within an acceptable accuracy while maintaining costs low. The methodology used in this study takes advantage of this technology to accomplish …

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