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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. …
Control System Design For A C-130 Ro-Ro Sensor Deployment Platform, Robert Paul Hayes
Control System Design For A C-130 Ro-Ro Sensor Deployment Platform, Robert Paul Hayes
Graduate Theses, Dissertations, and Problem Reports (ETD)
A WVU team of engineers designed and built a palletized system that will be used to deploy surveillance sensors from a C-130 cargo airplane. There will be two pallets, one that will house the Operator Station and one that will carry a mechanical arm with a Sensor Pod, where the sensors will reside. This pallet will be placed on the C-130 rear door, which will be opened while in flight. The mechanical arm is designed to rotate the Sensor Pod underneath the door so the sensors can observe the ground.;Computer/Electrical engineers were asked to design the control circuit for the …
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 …
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 …
Design Of A Standardized Sensor Platform For A C-130 Aircraft, Zenovy S. Wowczuk
Design Of A Standardized Sensor Platform For A C-130 Aircraft, Zenovy S. Wowczuk
Graduate Theses, Dissertations, and Problem Reports (ETD)
The development of a standardized sensor pallet system for a C-130 aircraft was conceived by the National Guard to assist in counterdrug reconnaissance activities within the United States. Before development, the design parameters were established by the National Guard mission requirements and by the limitations of the C-130 aircraft. These limitations include using Commercial off the Shelf (COTS) and Government off the Shelf (GOTS) items when developing the system that must be universal on all C-130 aircraft variants B thru H. Further design criteria are delegated by the limitations of the C-130 aircraft. The following work describes the design process …
Application Of Turning Point Theory To Communication Following An Acquired Disability, Katie Neary Dunleavy
Application Of Turning Point Theory To Communication Following An Acquired Disability, Katie Neary Dunleavy
Graduate Theses, Dissertations, and Problem Reports (ETD)
Interpersonal relationships are affected when one relational partner acquires a disability. The acquisition of the disability is considered a turning point and the interest of this study is what occurs after the turning point. In particular, this study investigated the satisfaction, emotional support and solidarity of those who have acquired a disability in their life and one of their able-bodied relational partners. The stages of adjustment to a disability were also quantitatively analyzed. Both the participants who acquired a disability and their relational partners completed self-report measures. Difficulties in obtaining participants led to descriptive results. Challenges to a small participant …
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 …
Three Essays On Spatial Spillovers Of Highway Investment And Regional Growth, Samia Islam
Three Essays On Spatial Spillovers Of Highway Investment And Regional Growth, Samia Islam
Graduate Theses, Dissertations, and Problem Reports (ETD)
The impact of transportation infrastructure on regional employment can be reflected through changes in the accessibility of the region affected. A certain region may benefit from the positive externalities associated with a public works project even though the facilities are located in another region. The extent of these spillovers can be determined by using a measure of proximity to highway infrastructure in a model of employment. The first essay in this dissertation examines the distance decay in employment growth and the spatial spillovers of highway investment in the 411-county Appalachian region. Although distance decay in employment is not evident after …
Information Dissemination By Compounding, Bohe (Bob) Wang
Information Dissemination By Compounding, Bohe (Bob) Wang
Graduate Theses, Dissertations, and Problem Reports (ETD)
Gossiping and broadcasting are two problems of information dissemination. In gossiping, every point in the network knows a unique item of information and needs to communicate it to all other points. Most of the recent interest in gossiping is due to its importance in the area of network communications and other areas of parallel and distributed computing.;Determining precisely the values of the minimum number of edges in a gossip graph is known to be a very hard problem. Very few values are known in the general case. G. Fertin and R. Labahn[Fer00],[FL00] used the k-way compounding method to construct gossip …
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 …
Tcp/Ip Stack Fingerprinting For Patch Detection In A Distributed Windows Environment, Balaji Ganesan
Tcp/Ip Stack Fingerprinting For Patch Detection In A Distributed Windows Environment, Balaji Ganesan
Graduate Theses, Dissertations, and Problem Reports (ETD)
Patch Management has become important in every system administrator's work profile. A missing patch can be essentially considered a vulnerability as the hackers make use of the knowledge of the vulnerability from the security bulletin and attempt attacks for that vulnerability. An efficient patch management solution is necessary to counter known vulnerabilities. For this an inventory listing of the patches installed in each system called a patch audit helps the system administrators know the patch status and install only the necessary patches. An important problem in patch auditing is that there may be many systems in a network for which …
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 …
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 …
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 …
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 …
Effect Of Watering Regime And Media Components On The Production Of Organic Tomato Transplants, Melissa C. Vantine
Effect Of Watering Regime And Media Components On The Production Of Organic Tomato Transplants, Melissa C. Vantine
Graduate Theses, Dissertations, and Problem Reports (ETD)
In order to find appropriate methods to produce quality organic tomato transplants, tomato (Lycopersicon esculentum cv. WV '63) seedlings were grown in four growing media containing various ratios of composted animal manure and were compared to transplants grown in a conventional peat-lite mix receiving synthetic fertilizers. These five media were watered according to eight watering regimes, including five watering levels and three watering regimes containing compost tea. Composted horse and cow manure can be used in part or instead of peat in organic potting mixes. The ratio of compost used will depend on characteristics of the compost and will also …
Axial Ligand Binding Equilibria As Probes Of The Effective Steric Bulk Of Substituted Tetraarylporphyrins, Michael Craig Thomas
Axial Ligand Binding Equilibria As Probes Of The Effective Steric Bulk Of Substituted Tetraarylporphyrins, Michael Craig Thomas
Graduate Theses, Dissertations, and Problem Reports (ETD)
Equilibrium constants and thermodynamic data are reported for coordination of various axial ligands to the zinc(II) complexes of tetra( p-tolyl)porphyrin, tetra(3,5-bis(biphenylmethoxy)phenyl)porphyrin, tetra(2,6-(perfluorobenzoxy)phenyl)porphyrin, and tetra(2,6-di(methoxy)phenyl)porphyrin in toluene at 25.0°C. With respect to coordination of a planar ligand to a zinc(II) porphyrin, the equilibrium constant varied with the identity of the meso-substituent in the order 3,5-bis-(biphenylmethoxy)phenyl > p-tolyl > 2,6-(perfluorobenzoxy)phenyl >> 2,6-di-(methoxy)phenyl. With respect to coordination of a non-planar ligand to a zinc(II) porphyrin, the order was 3,5-bis(biphenylmethoxy)phenyl > p-tolyl >> 2,6-(perfluorobenzoxy)phenyl ≈ 2,6-di(methoxy)phenyl. Thermodynamic data for the coordination of 3- and 4-phenylpyridine to zinc tetra(2,6-di(methoxy)phenyl) porphyrin show a greater loss of entropy than for the coordination …
Adolescents' Perceptions Of Interparental Conflict And The Impact On Their Aggressive Communication Traits, Christine E. Kunkle
Adolescents' Perceptions Of Interparental Conflict And The Impact On Their Aggressive Communication Traits, Christine E. Kunkle
Graduate Theses, Dissertations, and Problem Reports (ETD)
This study examines the relationship between interparental conflict and adolescents' aggressive communication while utilizing tolerance for disagreement as a mediating variable. Participants were 159 high school students. Participants completed a modified version of the Children's Perception of Interparental Conflict Scale (Grych, Seid, & Fincham, 1992), the Argumentativeness Scale (Infante & Rancer, 1982), the Verbal Aggressiveness Scale (Infante & Wigley, 1986), and the Revised Tolerance for Disagreement Scale (Teven, Martin, & Neupauer, 1998). No significant relationships were found between perceived interparental conflict and adolescents' tendencies to approach arguments, adolescents' tendencies to avoid arguments, and adolescents' verbal aggressiveness. When controlling for tolerance …
Stereotypical Perceptions Of The Communication Behaviors Of Gay Males, Daniel W. Brewster
Stereotypical Perceptions Of The Communication Behaviors Of Gay Males, Daniel W. Brewster
Graduate Theses, Dissertations, and Problem Reports (ETD)
This study examined the stereotypical communication behaviors of gay males. The study examined the associations of assertiveness, responsiveness, homonegativity and biological sex. Participants were 359 (195 men, 164 women) students. Participants provided responses to questions about verbal and nonverbal behaviors for known gay individuals and individuals perceived to be gay. The participants then completed the Assertiveness-Responsiveness Measure (Richmond & McCroskey, 1990) in a self-report and observer-report, and the Modern Homonegativity Scale (Morrison & Morrison, 2002). Results indicated some of the more predominant responses to verbal and nonverbal behaviors are inconsistent with the prevalent societal perceptions of homosexuality. Significant associations between …
Effectiveness Of Trek-21 Model Of Professional Development On Changes In Teacher Practices With Respect To Instructional Technology Integration, Chifundo N. Lemani
Effectiveness Of Trek-21 Model Of Professional Development On Changes In Teacher Practices With Respect To Instructional Technology Integration, Chifundo N. Lemani
Graduate Theses, Dissertations, and Problem Reports (ETD)
The purpose of this study was to investigate the relationship between key factors of Trek-21 professional development model and resulting changes in teacher practices with respect to the integration of instructional technologies into participants' classrooms. The Trek 21 professional development was a three-year project designed to bring about a deep and lasting change in educators through the integration of instructional technologies. The project was funded as an implementation grant through the U.S. Department of Education's Preparing Tomorrow's Teachers to Use Technology (PT3) grant program. The Trek-21 professional development was developed around research-based practices that enabled participants to develop IT skills …
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 …
Teaching Intermediate -Level Technical And Musical Skills Through The Study And Performance Of Selected Piano Duets, Hooi Yin Boey
Teaching Intermediate -Level Technical And Musical Skills Through The Study And Performance Of Selected Piano Duets, Hooi Yin Boey
Graduate Theses, Dissertations, and Problem Reports (ETD)
Piano duet playing is a unique type of performing because it is the only musical experience where two people play music written for a single instrument. Duet playing offers not only joy and fun in music making with a partner, but also provides substantial instructional benefits at all levels. Duet playing is especially valuable for young pianists because it helps them develop basic musicianship and ensemble skills at an earlier level. Teachers should recognize the importance of teaching piano duets to elementary and intermediate piano students.;The present study investigates ways to help late-elementary and intermediate students master intermediate-level technical and …
Analysis Of E-Mail Attachment Signatures For Potential Use By Intrusion Detection Systems, Archis Vijay Raje
Analysis Of E-Mail Attachment Signatures For Potential Use By Intrusion Detection Systems, Archis Vijay Raje
Graduate Theses, Dissertations, and Problem Reports (ETD)
Today, an Intrusion Detection System (IDS) is almost a necessity. The effectiveness of an IDS depends on the number of parameters it can monitor to report malicious activity. Current Intrusion Detection Systems monitor packet headers only.;This thesis investigates the possibility of monitoring network packet data as one of the parameters for IDS. This is done by finding a pattern in each type of payload. This pattern might then be related to the application to which it belongs. Based on this pattern, an attempt is made to determine if there is a difference in packets generated by different applications.;This investigation limits …
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. …
Viewing Themes Of Teaching And Learning With A Phenomenological Lens, Katina L. Sayers
Viewing Themes Of Teaching And Learning With A Phenomenological Lens, Katina L. Sayers
Graduate Theses, Dissertations, and Problem Reports (ETD)
The purpose of this qualitative study is to explore understandings pre-service teachers, in-service teachers, and college faculty hold towards learning and teaching, the types of classroom setting that best contributes to teaching and learning, and the kinds of experiences that are meaningful. These 'understandings' were compared to existing ideas in the literature to determine whether or not teachers are responding to post-modern thought related to the issues of concern.;Using common and not-so-common qualitative research methods, data was gathered from nine participants through face-to-face interviews, documents, observations, journal entries, and photo-elicitation interviews. For data analysis and interpretation, an inductive emergent design …
Fish Use Of Artificial Dyke Structures In The Kanawha River, West Virginia, Jennifer L. Titus
Fish Use Of Artificial Dyke Structures In The Kanawha River, West Virginia, Jennifer L. Titus
Graduate Theses, Dissertations, and Problem Reports (ETD)
Artificial structures have been used in the past to potentially increase fish production by providing cover, feeding grounds and spawning areas. In some areas the US Army Corp of Engineers has constructed dykes to provide additional habitat for river fishes and to mitigate against navigable related impacts. This study is designed to test whether such structures really function as viable habitats as evidenced by increased abundances relative to natural reference areas lacking structures. Five sets of structures in the Kanawha River, West Virginia were sampled via boat electrofishing using point-abundance sampling twice monthly from June through October 2002 and 2003. …
Evaluation Of The Treatment Utility Of The Analog Functional Analysis And The Structured Descriptive Assessment, Carie L. English
Evaluation Of The Treatment Utility Of The Analog Functional Analysis And The Structured Descriptive Assessment, Carie L. English
Graduate Theses, Dissertations, and Problem Reports (ETD)
The analog functional analysis exerts a great deal of control over environmental variables due to the systematic manipulation of specific antecedent and consequent events. Previous research suggests that the treatment utility of the analog might be enhanced by including environmental variables specific to the participant (e.g., caregivers). An alternative to this is to conduct the functional assessment in the natural environment. The structured descriptive assessment (SDA) involves systematic manipulation of antecedent events but is conducted by caregivers in individuals' natural environment. The purpose of this study was to examine the treatment utility of the analog functional analysis and the SDA …
Use Of A Token Economy To Increase Exercise In Children With Cystic Fibrosis, Rebecca S. Bernard
Use Of A Token Economy To Increase Exercise In Children With Cystic Fibrosis, Rebecca S. Bernard
Graduate Theses, Dissertations, and Problem Reports (ETD)
Cystic fibrosis is a chronic illness that affects several major organ systems, primarily the respiratory system and the exocrine glands of the pancreatic system. The treatment regimen is extensive (e.g., medications, vitamins, high fat diet, airway clearance sessions). Although adherence to medications is high, adherence to the airway clearance techniques (chest physiotherapy and exercise) is less consistent. Increasing exercise adherence is of utmost importance because pulmonary difficulties are associated with the highest mortality rate and exercise is more beneficial than other airway clearance methods. Despite this, very little research has focused on increasing exercise adherence in this population. The purpose …
Identification Of Technical Barriers And Preferred Practices For Oil Production In The Appalachian Basin, Sandra M. Del Bufalo Paez
Identification Of Technical Barriers And Preferred Practices For Oil Production In The Appalachian Basin, Sandra M. Del Bufalo Paez
Graduate Theses, Dissertations, and Problem Reports (ETD)
The Appalachian Basin is characterized by great number of stripper wells and marginally producing oilfields that face a number of production problems. The purpose of this study was to identify the main problematic issues and preferred solutions for oil production in the Appalachian Basin. Investigation and identification of oil production problems and preferred solutions began with searches in the Society of Petroleum Engineer (SPE) library, and Petroleum Technology Transfer Council (PTTC) website. In addition, journals, workshop, conference were used to find additional information. Formal interviews were arranged with oil producers to gain more insight into problems in the Appalachian Basin. …