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Strategies For Sustainable Professional Development Programs To Promote Effective Pedagogical Use Of Instructional Technology In Teaching, Karla R. Assis Cezarino
Strategies For Sustainable Professional Development Programs To Promote Effective Pedagogical Use Of Instructional Technology In Teaching, Karla R. Assis Cezarino
Graduate Theses, Dissertations, and Problem Reports (ETD)
The purpose of this study was to determine a set of common strategies employed by sustainable instructional technology professional development programs that are found to successfully promote educators' high-level use of technology in their teaching practice. Two questions guided this study: (a) Research Question 1: What do successful instructional technology professional development programs recognize as indicators of high-level use of technology? and (b) Research Question 2: Which instructional technology professional development strategies successfully promote high-level use of instructional technology in participants' teaching practice?;An online questionnaire consisting of close-ended questions and open-ended questions was used as the means of data collection. …
Limiting Dns Covert Channels And Network Validated Dns, Rex D. Mccracken
Limiting Dns Covert Channels And Network Validated Dns, Rex D. Mccracken
Graduate Theses, Dissertations, and Problem Reports (ETD)
Despite the variety and number of network security devices and policies available, sensitive data, such as intellectual property and business data, can still be surreptitiously sent via the Internet to unscrupulous receivers. Furthermore, few security mechanisms address securing or limiting covert channels. This study defines a framework for determining a rule set to minimize covert channel capacity on the DNS protocol specifically. The information and techniques used in this study may be useful in aiding security professionals and developers with enforcing security policies on DNS and other Internet protocols.;This research resulted in the development of a rudimentary tool, referred to …
Women And Social Services In Saudi Arabia, Khadija Nasseef
Women And Social Services In Saudi Arabia, Khadija Nasseef
Graduate Theses, Dissertations, and Problem Reports (ETD)
This master thesis talks about social services for women that provided by social welfare agencies in Saudi Arabia. This thesis is a descriptive study that uses the content analysis as a method to investigate social services agencies that provides special services for women. This thesis also had special interest in social services that improve women's lives in Saudi Arabia. The content analysis is made on documents and brochures of 4 main social services agencies that offer services for women. The content analysis was made in term of these agencies main aim and target, their main massage, their programs for women, …
Managing Classroom Behavior Of Head Start Children Using Response Cost And Token Economy Procedures, Jennifer D. Tiano
Managing Classroom Behavior Of Head Start Children Using Response Cost And Token Economy Procedures, Jennifer D. Tiano
Graduate Theses, Dissertations, and Problem Reports (ETD)
The efficacy of three behavior management techniques used in a Head Start classroom was examined. The three techniques included: (a) techniques currently used by the teacher, (b) response cost, and (c) the Level System (token economy). The current study used an ABACA single subject withdrawal design with follow-up where all conditions were implemented until stability was reached. Classroom behavior was evaluated by both behavioral observation and teacher report. Children's behavior, teacher skill, number of time-outs, and satisfaction with behavior management techniques (i.e., teacher, parent, and child) were examined. No conclusions could be made concerning the efficacy (i.e., inappropriate behavior, class …
Software Quality And Reliability Prediction Using Dempster -Shafer Theory, Lan Guo
Software Quality And Reliability Prediction Using Dempster -Shafer Theory, Lan Guo
Graduate Theses, Dissertations, and Problem Reports (ETD)
As software systems are increasingly deployed in mission critical applications, accurate quality and reliability predictions are becoming a necessity. Most accurate prediction models require extensive testing effort, implying increased cost and slowing down the development life cycle. We developed two novel statistical models based on Dempster-Shafer theory, which provide accurate predictions from relatively small data sets of direct and indirect software reliability and quality predictors. The models are flexible enough to incorporate information generated throughout the development life-cycle to improve the prediction accuracy.;Our first contribution is an original algorithm for building Dempster-Shafer Belief Networks using prediction logic. This model has …
Recruitment Strategies Used By High School Agriculture Education Teachers In West Virginia, Danny R. Dewhurst
Recruitment Strategies Used By High School Agriculture Education Teachers In West Virginia, Danny R. Dewhurst
Graduate Theses, Dissertations, and Problem Reports (ETD)
Recruitment is the act of enrolling new members as well as keeping current levels of members or students. Questionnaires were sent to all agricultural education teachers in West Virginia to determine what strategies were being used to maintain and increase enrollment in agriculture education programs throughout West Virginia. The first questionnaire was sent to 97 agricultural education teachers asking them to list recruiting activities that they used to promote their programs. A second questionnaire was sent asking them to rate the effectiveness of recruitment activities they have participated in over the past four (4) years. Forty-six secondary agricultural education teachers …
Super Resolution Of Fingerprints, Kaustubh R. Deshpande
Super Resolution Of Fingerprints, Kaustubh R. Deshpande
Graduate Theses, Dissertations, and Problem Reports (ETD)
The goal of any biometric recognition algorithm has been to target 100% recognition rate. Even a failure of 0.1% of the cases may be disastrous to the overall performance of the algorithm given the nature of the application. The performance of the recognition module is dependent directly on the quality of the images fed to this algorithm. It is no wonder thus that enhancing these images before they are fed into the recognition algorithm has gained importance in the recent years.;In this work, we develop a super-resolution method with a specific goal to improve the resolution of biometric images. This …
Compatible Taper And Volume Equations For Yellow-Poplar In West Virginia, Lichun Jiang
Compatible Taper And Volume Equations For Yellow-Poplar In West Virginia, Lichun Jiang
Graduate Theses, Dissertations, and Problem Reports (ETD)
Yellow-poplar (Liriodendron tulipifera L.) is an important source of raw material for the forest products industry in West Virginia. Accurate taper and volume functions are an important component of most inventory systems for use in estimating upper stem diameter, form, and tree volume. Compatible taper and volume functions can be derived through the mathematical integration of taper functions. Non-linear regression techniques were employed to estimate the parameters in both the taper and volume functions while accounting for correlated error structures. This technique was used to simultaneously minimize the error in both the taper and volume functions. The data included 44 …
Chaotic Price Dynamics Of Agricultural Commodities, Jeff B. Cromwell
Chaotic Price Dynamics Of Agricultural Commodities, Jeff B. Cromwell
Graduate Theses, Dissertations, and Problem Reports (ETD)
Traditionally, commodity prices have been analyzed and modeled in the context of linear generating processes. The purpose of this dissertation is to address the adequacy of this work through examination of the critical assumption of independence in the residual process of linearly specified models. As an alternative, a test procedure is developed and utilized to demonstrate the appropriateness of applying generalized conditional heteroscedastic time series models (GARCH) to agricultural commodity prices. In addition, a distinction is made between testing for independence and testing for chaos in commodity prices. The price series of interest derive from the major international agricultural commodity …
Synchronization Of Spatiotemporal Patterns And Modeling Disease Spreading Using Excitable Media, Jianxia Cui
Synchronization Of Spatiotemporal Patterns And Modeling Disease Spreading Using Excitable Media, Jianxia Cui
Graduate Theses, Dissertations, and Problem Reports (ETD)
Studies of the photosensitive Belousov-Zhabotinsky (BZ) reaction are reviewed and the essential features of excitable media are described. The synchronization of two distributed Belousov-Zhabotinsky systems is experimentally and theoretically investigated. Symmetric local coupling of the systems is made possible with the use of a video camera-projector scheme. The spatial disorder of the coupled systems, with random initial configurations of spirals, gradually decreases until a final state is attained, which corresponds to a synchronized state with a single spiral in each system. The experimental observations are compared with numerical simulations of two identical Oregonator models with symmetric local coupling, and a …
Results On Hyperspaces, Jorge M. Martinez-Montejano
Results On Hyperspaces, Jorge M. Martinez-Montejano
Graduate Theses, Dissertations, and Problem Reports (ETD)
A characterization of Cp(X), the family of subcontinua of X containing a fixed point of X, when X is an atriodic continuum is given as follows. Assume Z is a continuum and consider the following three conditions: (1) Z is a planar absolute retract; (2) cut points of Z have component number two; (3) any true cyclic element of Z contains at most two cut points of Z. If X is an atriodic continuum and p ∈ X, then Cp(X) satisfies (1)--(3) and, conversely, if Z satisfies (1)--(3), then there exist an arc-like continuum (hence, atriodic) X and a point …
Graph Minor, Jianbing Niu
Graph Minor, Jianbing Niu
Graduate Theses, Dissertations, and Problem Reports (ETD)
In this paper, we present three results: (1) Let G be a (k + 2)-connected non-(k - 3)-apex graph where k ≥ 2. If G contains three k-cliques, say L 1, L2, L3, such that |Li ∩ Lj| ≤ k - 2 (1 ≤ i < j ≤ 3), then G contains a Kk +2 as a minor. (2) Let G be a 6-connected claw-free graph. If delta(G) ≥ 7 and G contains three disjoint 5-cliques, say Ll, L2, L3, then G contains a K7 as a minor. (3) There is a function h : N → N, such that, for every 4-connected graph G with minimum degree at least five embedded in a surface with Euler genus g and face-width at least h(g), every longest circuit of the graph G has a chord.
Three Essays On Trade And *Development, Abhra Roy
Three Essays On Trade And *Development, Abhra Roy
Graduate Theses, Dissertations, and Problem Reports (ETD)
In the first essay of this dissertation, we analyze the role of education subsidies on child labor in a situation where parents choose the quantity of children to have as well as their educational attainment. We find that lump sum education subsidies may increase (decrease) the equilibrium level of education and child labor depending on whether parents attach more weight on education (quality) or on school enrollment. Marginal education subsidies, in general, have the exact opposite effect. Some authors have found that a rise in the cost of schooling decreases child labor in some countries while increasing it in others. …
Adaptive Video Segmentation, Nagamani Banda
Adaptive Video Segmentation, Nagamani Banda
Graduate Theses, Dissertations, and Problem Reports (ETD)
The efficiency of a video indexing technique depends on the efficiency of the video segmentation algorithm which is a fundamental step in video indexing. Video segmentation is a process of splitting up a video sequence into its constituent scenes. This work focuses on the problem of video segmentation. A content-based approach has been used which segments a video based on the information extracted from the video itself. The main emphasis is on using structural information in the video such as edges as they are largely invariant to illumination and motion changes. The edge-based features have been used in conjunction with …
Feature-Level Fusion In Multimodal Biometrics, Rohin K. Govindarajan
Feature-Level Fusion In Multimodal Biometrics, Rohin K. Govindarajan
Graduate Theses, Dissertations, and Problem Reports (ETD)
Multimodal biometric systems utilize the evidence presented by multiple biometric modalities (e.g., face and fingerprint, multiple fingers of a user, multiple impressions of a single finger, etc.) in order to determine or verify the identity of an individual. Information from multiple sources can be consolidated in three distinct levels [1]: (i) feature set level; (ii) match score level; and (iii) decision level. While fusion at the match score and decision levels have been extensively studied in the literature, fusion at the feature level is a relatively understudied problem. A novel technique to perform fusion at the feature level by considering …
Effects Of Artificial Neural Network Speed-Based Inputs On Heavy-Duty Vehicle Emissions Prediction, Nastaran Hashemi
Effects Of Artificial Neural Network Speed-Based Inputs On Heavy-Duty Vehicle Emissions Prediction, Nastaran Hashemi
Graduate Theses, Dissertations, and Problem Reports (ETD)
The PM split study was performed in Southern California on thirty-four heavy-duty diesel vehicles using the West Virginia University Transportable Heavy-Duty Vehicle Emissions Testing Laboratories to gather emissions data of these vehicles. The data obtained from six vehicles in the 1985--2001 model year and 33,000--80,000 lb weight range exercised through three different cycles were selected in this thesis. To predict the instantaneous levels of oxides of nitrogen (NOx), carbon dioxide (CO2), hydrocarbons (HC) and carbon monoxide (CO), an Artificial Neural Network (ANN) was used. Axle speed, torque, their rates of change over different time periods and two other variables as …
Finite Element Simulation Of Creep Behavior In Enhanced Refractory Material For Glass Furnace, Praveen Kumar Kuntamalla
Finite Element Simulation Of Creep Behavior In Enhanced Refractory Material For Glass Furnace, Praveen Kumar Kuntamalla
Graduate Theses, Dissertations, and Problem Reports (ETD)
An important focus in the glass melting industry, which is an energy intensive industry, is towards greater output and increased energy efficiency in the glass melting process. Conversion to the oxy-fuel-fired furnace from the traditional air-fuel-fired furnace is one means to achieve greater output and energy efficiency, since the capital cost per ton of glass pulled is approximately 58% less for the oxy-fuel-fired furnace compared to the air-fuel-fired furnace.;The main disadvantages of the oxy-fuel-fired furnace are its higher operating temperature, possibly to more than 2200°F, and its alkali partial pressure that hasten the corrosion of refractory materials, particularly in silica …
Information Fusion Schemes For Real Time Risk Assessment In Adaptive Control Systems, Martin Mladenovski
Information Fusion Schemes For Real Time Risk Assessment In Adaptive Control Systems, Martin Mladenovski
Graduate Theses, Dissertations, and Problem Reports (ETD)
Intelligent Flight Control System (IFCS) deploys a neural network for in-flight aircraft failure accommodation. Verification and validation (V&V) of adaptive systems is a challenging research problem. Our approach to V&V relies on real-time monitoring of neural network learning. Monitors detect learning anomalies and react to different failure conditions. We investigated data fusion techniques suitable for the analysis of neural network monitors. Monitor outputs are fused into a measure of confidence, indicating the belief in the correctness of failure accommodation mechanism provided by the neural network. We investigated two data fusion techniques, one based on Dempster-Shafer theory and the other based …
Transmitter Precoding For Multi-Antenna Multi-User Communications, Kirtan N. Modi
Transmitter Precoding For Multi-Antenna Multi-User Communications, Kirtan N. Modi
Graduate Theses, Dissertations, and Problem Reports (ETD)
Emerging wireless sensor networks and existing wireless cellular and ad hoc networks motivate the design of low-power receivers. Multi-user interference drastically reduces the energy efficiency of wireless multi-user communications by introducing errors in the bits being detected at the receiver. Interference rejection algorithms and multiple antenna techniques can significantly reduce the bit-error-rate at the receiver. Unfortunately, while interference rejection algorithms burden the receiver with heavy signal processing functionalities, thereby increasing the power consumption at the receiver, the small size of receivers, specifically in sensor networks and in downlink cellular communications, prohibits the use of multiple receive antennas. In a broadcast …
Developing The Portability Indices And The Portable Code Generator, Gregory E. Mundy
Developing The Portability Indices And The Portable Code Generator, Gregory E. Mundy
Graduate Theses, Dissertations, and Problem Reports (ETD)
Portability is recognized as a highly desirable characteristic of contemporary software design. However, research in the area has not been forthcoming in recent years and much of the work related to the field is ad hoc and speculative at best.;This study attempted to establish a framework for deriving a probabilistic measure of software portability that may be useful in aiding developers to make key design decisions that will result in some quantifiable level of portability while minimizing the cost of incorporating portable design into the software production process.;The research also explored the potential portability benefits that may be derived from …
Dynamic Modal Analysis And Optimization Of C-130 Project Oculus' Mechanical Arm/Pod Sensor Deployment System Using The Finite Element Method, Adam C. Naternicola
Dynamic Modal Analysis And Optimization Of C-130 Project Oculus' Mechanical Arm/Pod Sensor Deployment System Using The Finite Element Method, Adam C. Naternicola
Graduate Theses, Dissertations, and Problem Reports (ETD)
The Department of Defense (DoD) and the United States Army National Guard (USARNG) have sponsored West Virginia University's Center for Industrial Research Applications (CIRA) to design, fabricate, test and optimize an articulating, mechanical arm/pod system. The mechanical arm/pod system will be designed to accommodate a 500-pound sensor payload deployable in flight from a C-130 Hercules military aircraft used for counter narco-terrorism efforts. During the overall deployment (translation and rotation) of the mechanical arm/pod system and in the final resting position for optimal operating conditions for the data acquisition sensors (DAS), the mechanical structure will be subjected to a variety of …
Diagnosis Of Operational Changes In Microelectromechanical Systems Via Fault Detection, Scott A. Rittenhouse
Diagnosis Of Operational Changes In Microelectromechanical Systems Via Fault Detection, Scott A. Rittenhouse
Graduate Theses, Dissertations, and Problem Reports (ETD)
As microelectromechanical systems (MEMS) devices migrate into progressively more critical systems, the reliability these devices have to demonstrate must increasingly improve. Current research in the reliability of MEMS has succeeded in increasing the reliability of commercialized MEMS before they are integrated into an application by focusing on fabrication processes, device materials, and packaging. In this study, the focus is on assessing the reliability of MEMS during device operation.;A fault detection approach was taken to diagnose incipient changes in the operation of MEMS devices. Model-based fault detection schemes utilizing the Kalman filter and Hinfinity filter as residual generators were investigated. Analysis …
Teachers' Beliefs In Relation To Their Instructional Technology Practices, Deniz Palak
Teachers' Beliefs In Relation To Their Instructional Technology Practices, Deniz Palak
Graduate Theses, Dissertations, and Problem Reports (ETD)
This study investigated how teachers' beliefs and factors other than teachers' beliefs relate to teachers' instructional technology practices. Teachers' beliefs were identified as teacher-centered beliefs, student-centered beliefs, and attitudes toward technology integration. Teacher confidence and comfort, technical support, general school support, and ratio of computers-to-students in the classroom were identified as factors other than teachers' beliefs.;The study employed both quantitative and qualitative research methodologies. The research population of this study involved 113 technology-using P--12 teachers who worked in technology-rich schools in West Virginia. The quantitative research methods employed two surveys and computed a series of correlational and multiple regression analyses …
Numerical Simulation Of Fine Particle Separation In Hindered -Settling Bed Separators By Computational Fluid Dynamics, Yunkai Xia
Graduate Theses, Dissertations, and Problem Reports (ETD)
The objective of the present study was to improve the understanding of multiple phase flows in hindered-settling bed separators (HSBS). A better understanding of mineral separation in HSBS and the role of structured plates was gained through studies conducted with Computational Fluid Dynamics (CFD) analysis tools. An Euler-Lagrange model from CFD technique is used for this purpose.;In an Euler-Lagrange model, two dimensional incompressible Navier-Stokes equations are solved with the implementation of a finite volume approach over staggered grids with application of Baldwin-Lomax turbulent model. The overall accuracy of the method is second-order in both space and time. The calculation of …
Application Of Digital Infrared Thermography For Nondestructive Evaluation Of Composite Bridge Components, Archana Vasudevan
Application Of Digital Infrared Thermography For Nondestructive Evaluation Of Composite Bridge Components, Archana Vasudevan
Graduate Theses, Dissertations, and Problem Reports (ETD)
The objective of this research is to evaluate the applicability of digital infrared thermographic system to detect subsurface defects such as debonds and delaminations in Fiber Reinforced Polymer (FRP) bridge decks and other composite bridge components such as beams and columns wrapped with steel or FRP jacket.;This thesis investigates the use of digital infrared thermography on FRP bridge decks both under laboratory and field conditions. Air-filled and water-filled debonds were inserted between the wearing surface and the underlying FRP deck. Also, simulated subsurface delaminations (of various sizes and thickness) were created at the flange-to-flange junction between two FRP deck modules.;The …
Pic 18f452 Implementation Of Digital Filters, Vikram A. Bose-Mullick
Pic 18f452 Implementation Of Digital Filters, Vikram A. Bose-Mullick
Graduate Theses, Dissertations, and Problem Reports (ETD)
This research hopes to explore the computational limits of the PIC18f452 chip by encompassing the designing and implementation of two types of filters for the PIC 18F452 microcontroller. The main purpose of this research is to implement a floating-point least mean square (LMS) error adaptive filter and its secondary goal is a fixed-point implementation of finite impulse response (FIR) filter. FIR filters are specified via a graphical user interface (GUI) and upon demand, optimized C-language code is generated for the popular CCS PIC C-Compiler. In is the intent of this research to learn whether FIR filters can be made computationally …
Leadership Styles Of Department Chairs And Faculty Utilization Of Instructional Technology, Tongshan Chang
Leadership Styles Of Department Chairs And Faculty Utilization Of Instructional Technology, Tongshan Chang
Graduate Theses, Dissertations, and Problem Reports (ETD)
This study examined the relationship between the leadership styles of academic department chairs of Curriculum and Instruction, Educational Leadership Studies, Teacher Education, and Educational Psychology in Colleges of Education at doctoral/research public universities by Carnegie Classification and faculty utilization of instructional technology in teaching. Two-stage random sampling was used to sample the population. The instrument of Faculty Utilization of Instructional Technology was sent to 93 chairs and 843 faculty, respectively. Bolman and Deal's Leadership Orientation (other) was also sent to 843 selected faculty. Thirty-seven chairs and 230 faculty responded to the survey. Descriptive statistics. Chi-square test, t test, ANOVA, MNOVA, …
Effective Verbal Behaviors During Cognitive Collaboration By Older Adult Partners, Kristopher J. Kimbler
Effective Verbal Behaviors During Cognitive Collaboration By Older Adult Partners, Kristopher J. Kimbler
Graduate Theses, Dissertations, and Problem Reports (ETD)
The present study examined interactive behaviors in older adults (N = 80 individuals). The main goal of the current study was to examine the process of collaboration and how the interactive process related to the collaborative outcome. Three research questions were addressed. First, did partners exhibit similar levels of interactive behavior or did collaborative behaviors vary by partner familiarity, performance order, or sex? Second, to what extent did individual variables predict interactive behaviors? Finally, how were the dyadic interactive behaviors related to the outcome of the collaboration? The proportion of interactive behaviors varied based on performance order and partner familiarity. …
Teachers' Perceptions Of The Goals Of Secondary Schools Physical Education In State Of Kuwait, Obaid Alshammari
Teachers' Perceptions Of The Goals Of Secondary Schools Physical Education In State Of Kuwait, Obaid Alshammari
Graduate Theses, Dissertations, and Problem Reports (ETD)
The purpose of this study was to investigate the perceptions of the Kuwait physical education teachers relevant to the goals of the physical education program for secondary schools. Data were collected from a sample consisting of 200 (n = 200) physical education teachers teaching in six provinces in Kuwait. For data collection, a five-point Likert scale questionnaire, named "Kuwaiti Physical Education Goals" (KPEG) was designed. The instrument asked the participants to indicate the level of agreement with four categories of physical education goals. In addition, differences in teachers based on gender between physical education teachers' perceptions were investigated. An examination …
Modeling The Oriented Strandboard Manufacturing Process And The Oriented Strandboard Continuous Rotary Drying System, John R. Noffsinger
Modeling The Oriented Strandboard Manufacturing Process And The Oriented Strandboard Continuous Rotary Drying System, John R. Noffsinger
Graduate Theses, Dissertations, and Problem Reports (ETD)
Oriented Strand Board (OSB) is the leading structural panel product used in residential building construction. This dissertation describes three models and a statistical process control technique all designed to aid manufacturers to cost effectively manufacture OSB. The first model is an OSB Mill Process Flow Model that defines the processing steps and the desired outcomes. The second model is an OSB Mill Model, an ExcelRTM based computer program, designed to answer operational "what if" and "trade-off" questions. The model is a spreadsheet representation of the OSB production process. The third model is an OSB Dryer Model that predicts the dryer …