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Establishing A Historic Benchmark For Rimrock Pine Communities At New River Gorge National River, West Virginia, Richard Stockton Maxwell
Establishing A Historic Benchmark For Rimrock Pine Communities At New River Gorge National River, West Virginia, Richard Stockton Maxwell
Graduate Theses, Dissertations, and Problem Reports (ETD)
The structure and composition of a rimrock pine community was studied in the New River Gorge National River, West Virginia. A forest survey found that the overstory was dominated by Pinus virginiana, Nyssa sylvatica, Oxydendrum arboreum, Acer rubrum, and Quercus spp. The importance of Pinus virginiana decreased rapidly with increasing distance from the cliff edge and was replaced by hardwood competitors. Regeneration of Pinus virginiana (∼4,200 stems/ha) was deemed inadequate to sustain a pine forest except on the harshest sites near the cliff edge. A 108-year (1897-2005) fire chronology was constructed from 51 fire scars recorded by 23 pines along …
The Efficacy And Repeatability Of The Vita Easy Shade System When Compared To Traditional Visual Methods Of Shade Evaluation, Ali Kanawati
The Efficacy And Repeatability Of The Vita Easy Shade System When Compared To Traditional Visual Methods Of Shade Evaluation, Ali Kanawati
Graduate Theses, Dissertations, and Problem Reports (ETD)
The standard method for clinical shade matching is the human eye along with comparative analysis among operators or auxiliary personnel. This study evaluated a new electronic method of clinical shade matching as compared to the standard method that has been almost exclusively used in the past. The Vita Easy Shade system, an electronic method of shade matching, was analyzed for relative accuracy and compared to specific operators' abilities whose effectiveness in color analysis within the realm of dentistry has been determined to be above average by using a simple color screening test. The Vita Easy Shade machine was used on …
Subsurface Mapping Of Ellesmerian Onlaps: Testing The Opening Of The Arctic Canada Basin, Brian Connelly
Subsurface Mapping Of Ellesmerian Onlaps: Testing The Opening Of The Arctic Canada Basin, Brian Connelly
Graduate Theses, Dissertations, and Problem Reports (ETD)
Since the advent of plate tectonics in the mid-1960's the mechanism for formation of the majority of the world's ocean basins has been solved. However, there are still several remaining tectonic conundrums, such as the origin of the Arctic Canada Basin. The most widely accepted tectonic hypothesis proposes a rotational opening of the basin after rifting along the Northern Alaskan-Canadian Arctic margins.;Subsurface mapping the Ellesmerian strata of Northern Alaska onlapping onto the Barrow Arch, a long-lived basement high, was carried out and then compared with mapped strata on Prince Patrick Island, Canada, to see if they aligned. These mapped onlaps …
Analysis Of Energy Consumption In Continuous Galvanizing Lines, Raviraj Ratnakar Chavan
Analysis Of Energy Consumption In Continuous Galvanizing Lines, Raviraj Ratnakar Chavan
Graduate Theses, Dissertations, and Problem Reports (ETD)
The pot hardware in continuous galvanizing lines is prone to failure and needs to be replaced quite frequently. This resulted in considerable loss of production time. Also equipment like, the molten zinc pot and annealing furnace cannot be turned off during downtime resulting in considerable energy consumption during downtime too.;A profound study of the energy aspect of the equipment used on galvanizing line was done. A systematic approach was used to collect and analyze the data from galvanizing facilities. A decision support system (DSS) that will take into account all the major energy consuming equipment in a typical hot dip …
A Pc-Based Fluid And Heat Transfer Analyzer For Two-Phase Flow In Pipes, Gbolahan Afonja
A Pc-Based Fluid And Heat Transfer Analyzer For Two-Phase Flow In Pipes, Gbolahan Afonja
Graduate Theses, Dissertations, and Problem Reports (ETD)
Modeling the simultaneous flow of gas and liquid or two-phase gas-liquid flow in pipes is a key aspect in petroleum production. These models can enhance our ability to estimate fluid properties, predict pressure loss, liquid holdup, and flow pattern, and to see the effects of introducing concepts such as heat transfer to the system. Modeling two-phase flow phenomenon also allows visualization of the interaction of one property or parameter to another. The understanding of heat transfer in two-phase gas-liquid flow is important for economic and optimized operations.;This work focuses on the design of a PC-Based Software for modeling the effect …
A Rotational Arm Connection Point Design For A C-130 Aircraft Standardized Sensor Platform, Kenneth A. Williams
A Rotational Arm Connection Point Design For A C-130 Aircraft Standardized Sensor Platform, Kenneth A. Williams
Graduate Theses, Dissertations, and Problem Reports (ETD)
West Virginia University's Center for Industrial Research Applications (CIRA) was sponsored by the United States Army National Guard (USANG) and the Department of Defense (DOD) to design a standardized, articulating sensor platform for the C-130 Hercules military aircraft. This sensor platform was to be capable of in-flight deployment and capable of facilitating a diverse spectrum of sensor configurations in order to aid in surveillance and reconnaissance for counter narco-terrorism efforts. Two complete sensor pallet prototypes have been developed. The current platform configuration consists of four aluminum arms that are connected to a rotational shaft via a cylindrical hub. For the …
Optical-Based Atr Algorithms For Applications In Swarmed Uavs, Vasavi Rangammagari
Optical-Based Atr Algorithms For Applications In Swarmed Uavs, Vasavi Rangammagari
Graduate Theses, Dissertations, and Problem Reports (ETD)
Swarmed Unmanned Aerial Vehicles (UAVs) with Automatic Target Recognition (ATR) technology are becoming an important element of electronic warfare. The advantages of UAVs over piloted vehicles have increased the need to develop robust and reliable ATR algorithms. Various issues like changing weather, camouflage, low contrast and resolution, clutter, inadequate databases place a limit on the performance capabilities of a typical ATR algorithm. In an effort to deal with these issues, a correlation-based algorithm is proposed in this thesis. This algorithm calculates the correlation between the input image and a target template which is created by projecting a 3-D model from …
Connecting Wv Fee-Fishing Businesses With The Larger Tourism Market Through The Development Of Tourism Package, Zongxiang Mei
Connecting Wv Fee-Fishing Businesses With The Larger Tourism Market Through The Development Of Tourism Package, Zongxiang Mei
Graduate Theses, Dissertations, and Problem Reports (ETD)
There is substantial demand for fishing packages in West Virginia. Fee-fishing businesses in West Virginia are often characterized as small businesses, and they could benefit from connecting with larger travel packages that are more likely to attract out-of-state anglers. The objectives are: (1) identify mini-market segments based on fee-fishing experiences; (2) examine how fee-fishing mini-markets can better connect with the larger outdoor recreation markets; and (3) to use this information to identify gaps in recreational offerings and develop tourism packages in a West Virginia test market. Six fee-fishing mini-markets were identified. Regression analysis results indicate that it is possible to …
Training Nursing Students In Evidence-Based Nonpharmacological Pain Management Techniques, Jill E. Maclaren
Training Nursing Students In Evidence-Based Nonpharmacological Pain Management Techniques, Jill E. Maclaren
Graduate Theses, Dissertations, and Problem Reports (ETD)
Pain is a common and potentially debilitating condition. Whereas there is vast literature on developmentally appropriate behavioral techniques for pain management, results of curriculum evaluations and knowledge surveys reveal a dearth of awareness of these strategies in healthcare professionals. This study evaluated the effects of a brief didactic training program for student nurses in developmentally appropriate behavioral pain management strategies for children. Results indicated that students who received the training program had significantly more knowledge of behavioral strategies following the training program than they had evidenced before the program. Further, these participants evidenced higher knowledge following the training program than …
Magnetic And Structural Properties Of Nanoparticles Of Nickel Oxide, Hyunja (Jenny) Shim
Magnetic And Structural Properties Of Nanoparticles Of Nickel Oxide, Hyunja (Jenny) Shim
Graduate Theses, Dissertations, and Problem Reports (ETD)
In this dissertation, magnetic properties of NiO nanoparticles (NP) prepared by the sol-gel method in the size range D = 5 nm to 20 nm, with and without oleic acid (OA) coating, are reported. Transmission electron microscopy (TEM) studies show the morphology of the smaller particles to be primarily rod-like, changing over to nearly spherical shapes for D >10 nm. Average sizes D of NP determined by x-ray diffraction (XRD) are compared with the results from TEM. From the analysis of the XRD line intensities, the particle size dependence of the Debye-Waller factors for Ni and O atoms are derived. …
Efficacy Of In-Home Parent -Child Interaction Therapy, Lisa M. Ware
Efficacy Of In-Home Parent -Child Interaction Therapy, Lisa M. Ware
Graduate Theses, Dissertations, and Problem Reports (ETD)
In recent years, there has been much discussion of the efficacy and effectiveness of mental health interventions for children as well as the transportation of empirically-supported treatments (ESTs) to field settings. While there have been efforts to improve dissemination of ESTs, little research has examined the efficacy of treatments in settings other than the traditional clinic. A logical initial step in this line of research is to examine whether the efficacy of ESTs can be demonstrated in community settings such as in the home environment. There are many hypothesized benefits to providing services in the home setting. Based on the …
Gender-Role Development In Toddlers: The Association Between Parental Gender-Role Orientation And Toddler's Gender-Typed Behavior, Jennifer K. Hartley
Gender-Role Development In Toddlers: The Association Between Parental Gender-Role Orientation And Toddler's Gender-Typed Behavior, Jennifer K. Hartley
Graduate Theses, Dissertations, and Problem Reports (ETD)
Associations between the gender-role orientation of parents and the toy-play behavior of first-born infants were investigated. Fifteen fathers ( M age = 31.13, SD = 4.26) and 46 mothers ( M age = 28.13, SD = 4.97) completed self-administered questionnaires which included questions on feedback to play with gender-typed toys. ANOVA results indicated that mothers provided more masculine-typed toys for their sons than their daughters, and more feminine-typed toys for their daughters than their sons; fathers provided more feminine-typed toys for their daughters than their sons. In addition, mothers provided more encouragement to same-gender-typed play than cross-gender-typed play for both …
To What Extent Does Personal Relevance Impact Behavior After Attending A Laboratory Safety Training Session?, Sandra E. Fouch
To What Extent Does Personal Relevance Impact Behavior After Attending A Laboratory Safety Training Session?, Sandra E. Fouch
Graduate Theses, Dissertations, and Problem Reports (ETD)
Each year in the United States, millions of dollars are spent to educate adults. Therefore, there has been a flurry of interest in answering the question, ''How do adults learn?'' There are different answers and therefore, different theories. The method selected for this study incorporated Andragogic learning into the laboratory safety training at Carnegie Mellon University. This design involved a number of features that recognized the essential maturity of the learner.;The training was developed to present the Laboratory Safety and Hazardous Waste Trainings at Carnegie Mellon University. The new training provided additional discussion points to allow the adults to interact …
Measurements Of The Electrical Properties Of Coal Measure Rocks, Nikolay D. Boykov
Measurements Of The Electrical Properties Of Coal Measure Rocks, Nikolay D. Boykov
Graduate Theses, Dissertations, and Problem Reports (ETD)
Subsurface imaging technologies are part of the electromagnetic (EM) geophysical methods. EM technologies such as radio imaging method (RIM), ground penetrating radar (GPR), and drill string radar (DSR) have great application potentials in the mining industry.;However, the success for applying the EM methods to subsurface observations is largely dependant on the correct evaluation of the electrical properties (e.g., wave attenuation rate and dielectric constant) of the rocks in the domain of interest. Study of the electrical properties of rocks was performed in order to gain better understanding about their variations across the country. The study was done specifically for rocks …
Effects Of Duty Cycles On Diesel Engine Component Life Estimation, Dave Jayasinghe
Effects Of Duty Cycles On Diesel Engine Component Life Estimation, Dave Jayasinghe
Graduate Theses, Dissertations, and Problem Reports (ETD)
Engine manufactures have relied on over designed of engines and performance testing to ensure product reliability. The efforts to maximize efficiency and to predict performance characteristics have evoked an interest to study the in-cylinder pressure throughout the respective duty cycle. The duty cycle of an engine is defined as the history of speed and load conditions over which the engine operates in a specific application. Understanding the transient on-road diesel engine duty cycles has been one of major goals for the engine developers. To date there have not been any research performed to identify a wide variety of on-road diesel …
Pitch Foam Production By Use Of Physical Blowing Agents, Mark E. Heavner
Pitch Foam Production By Use Of Physical Blowing Agents, Mark E. Heavner
Graduate Theses, Dissertations, and Problem Reports (ETD)
Carbon foam is a material with many unique characteristics and proposed applications. Demanding processing requirements make many of the applications uneconomical. In this study, the possibility of impressing external physical blowing agents (PBA) into pitch is investigated to form pitch foam, a precursor to carbon foam. This would reduce processing pressure and temperature requirements and decrease the cost of manufacturing. Two pitches have been characterized and have thermoplastic character similar to organic polymers. Several physical properties were measured for 110°C and 180°C softening point pitch which were supplied by Koppers Inc. and compared to select common polymers. PBAs are frequently …
Design Of A Quick-Release Mechanism For A C-130 Aircraft Sensor Platform, Seth D. Lucey
Design Of A Quick-Release Mechanism For A C-130 Aircraft Sensor Platform, Seth D. Lucey
Graduate Theses, Dissertations, and Problem Reports (ETD)
The development of a standardized sensor pallet system for a C-130 aircraft was conceived by the Center for Industrial Research Applications at West Virginia University to assist in counterdrug reconnaissance activities within the United States. The system has been completed and is now being optimized for various uses in addition to counterdrug reconnaissance. It is sought to have the sensor carriers/housings easily interchangeable so that they may be switched in the field by operators rather than in the hangar by technicians. The design parameters were established by the National Guard mission requirements and by the limitations of the C-130 aircraft. …
Composite Suspension Member Analysis, Bruce M. Schlicker
Composite Suspension Member Analysis, Bruce M. Schlicker
Graduate Theses, Dissertations, and Problem Reports (ETD)
As research has developed advancement in composites, they are increasingly being used as components in dynamic situations, e.g. suspension members. Previously used alloy materials are being replaced. Current research has led to developments in attaching aluminum to the composite. This new material is often referred to as a hybrid composite.;Hybrid composites used as suspension components become popular for their increased design flexibility. In this thesis, the shock mounting point was of the concern. It was found that the weak link in the hybrid aluminum/composite attachment is the bond between the aluminum and the epoxy.;Experiments and research led to advancements and …
Filter Weighing Procedure For 2007 And Newer Heavy Duty Diesel Engines, Eric Taylor
Filter Weighing Procedure For 2007 And Newer Heavy Duty Diesel Engines, Eric Taylor
Graduate Theses, Dissertations, and Problem Reports (ETD)
The 2007 heavy-duty on road diesel engine particulate matter standards will require that the particulate matter (PM) levels being emitted from the exhaust will be less than 0.01 g/bhp-hr. This ten-fold decrease in the existing regulations created the need for changes in the PM filter-weighing environment and procedures. The Code of Federal Regulations Title 40, Part 86 Subpart N (40 CFR 86) has stated that a weighing environment must meet Federal Standard 209E class 1000 classification. This regulation required a new cleanroom facility in the West Virginia University Center for Alternative Fuels, Engines and Emissions laboratories.;Weighing procedures were determined by …
Communication Organizational Orientations In An Instructional Setting, David Tibbles
Communication Organizational Orientations In An Instructional Setting, David Tibbles
Graduate Theses, Dissertations, and Problem Reports (ETD)
This study sought to determine if the organizational orientations of upward mobility, ambivalence, and indifference applied to students in the instructional setting. The McCroskey, Richmond, Johnson, and Smith (2004) Organizational Orientation Measure was adapted to a classroom setting to measure student orientations, and then the relationships between student orientations and student perceptions of teacher credibility, teacher nonverbal immediacy, student trait motivation, student state motivation, student beliefs and attitudes toward college, student affective learning, and student cognitive learning. Results indicate upward mobility had significant positive correlations with the dependent variables except cognitive learning while ambivalent and indifferent orientations had significant negative …
Women's Livelihood Strategies In Diverse Contexts: Constructing Feminist Topographies In Appalachia And South Africa, Amy Danielle Pratt
Women's Livelihood Strategies In Diverse Contexts: Constructing Feminist Topographies In Appalachia And South Africa, Amy Danielle Pratt
Graduate Theses, Dissertations, and Problem Reports (ETD)
This dissertation investigates the livelihoods of women heading households in rural parts of Appalachia and South Africa and develops a conceptual and methodological framework for transnational, comparative feminist research. Situated within a feminist geographical framework that is informed by feminist materialism and livelihoods analyses, it focuses on both historical and contemporary socioeconomic, cultural, and political forces at various scales of analysis that either enable or restrict women's ways of 'making due' in the two regions. The study focuses on five counties in northern West Virginia in the Appalachian region and Limpopo, including the former bantustan of Venda, in South Africa …
Updating Low-Profile Frp Deck Fe Model Using Experimental Modal Analysis, Srinivas Aluri
Updating Low-Profile Frp Deck Fe Model Using Experimental Modal Analysis, Srinivas Aluri
Graduate Theses, Dissertations, and Problem Reports (ETD)
A FRP composite cargo trailer was developed for the U.S. Marine Corps using the existing Prodeck4 FRP bridge deck as a trailer bed. Detailed finite element analysis and experimental evaluation was carried out on the FRP trailer. The FRP deck used is a new system and has orthotropic material properties, therefore an FE model of deck that is validated through experimental data will ensure confidence in results obtained from the FE model. Experimental modal analysis (EMA) was used to verify and update the FE model of the FRP deck.;A FE model of FRP deck was built in ANSYSRTM and the …
Barrier Properties Of Polymer Nanocomposites During Cyclic Sorption-Desorption And Stress-Coupled Sorption Experiments, Suneetha Burla
Barrier Properties Of Polymer Nanocomposites During Cyclic Sorption-Desorption And Stress-Coupled Sorption Experiments, Suneetha Burla
Graduate Theses, Dissertations, and Problem Reports (ETD)
It is well known that layered silicate nanoparticles, when distributed within the matrix of a polymer, can retard the diffusion of small molecules and improve barrier properties. This has been demonstrated in both sorption and permeation experiments in the past. In order to assess the long-term retention of barrier properties of polymer-layered silicate nanocomposites, it becomes important to study their response to various environmental effects.;The main theme of this investigation is to study the effect of several water exposure cycles and exposure coupled with external tensile stress on the barrier properties of various polymers like vinyl ester, polyester and epoxy …
Modeling Operating System Crash Behavior Through Multifractal Analysis, Long Range Dependence And Mining Of Memory Usage Patterns, Vijai Gandikota
Modeling Operating System Crash Behavior Through Multifractal Analysis, Long Range Dependence And Mining Of Memory Usage Patterns, Vijai Gandikota
Graduate Theses, Dissertations, and Problem Reports (ETD)
Software Aging is a phenomenon where the state of the operating systems degrades over a period of time due to transient errors. These transient errors can result in resource exhaustion and operating system hangups or crashes.;Three different techniques from fractal geometry are studied using the same datasets for operating system crash modeling and prediction. Holder Exponent is an indicator of how chaotic a signal is. M5 Prime is a nominal classification algorithm that allows prediction of a numerical quantity such as time to crash based on current and previous data. Hurst exponent measures the self similarity and long range dependence …
Analysis Of Hybrid-Arq Based Relaying Protocols Under Modulation Constraints, Tarik K. Ghanim
Analysis Of Hybrid-Arq Based Relaying Protocols Under Modulation Constraints, Tarik K. Ghanim
Graduate Theses, Dissertations, and Problem Reports (ETD)
In a seminal paper published in 2001, Caire and Tuninetti derived an information theoretic bound on the throughput of hybrid-ARQ in the presence of block fading. However, the results placed no constraints on the modulation used, and therefore the input to the channel was Gaussian. The purpose of this thesis is to investigate the impact of modulation constraints on the throughput of hybrid-ARQ in a block fading environment. First, we consider the impact of modulation constraints on information outage probability for a block fading channel with a fixed length codeword. Then, we consider the effect of modulation constraints upon the …
Dewatering Of Fine Coal Slurries By Selective Heating With Microwaves, Aashish Kalra
Dewatering Of Fine Coal Slurries By Selective Heating With Microwaves, Aashish Kalra
Graduate Theses, Dissertations, and Problem Reports (ETD)
Since water is used extensively in coal preparation and cleaning, dewatering of coals is required prior to shipment to power plants. However, finer fractions of coals are difficult to dewater and consequently these fractions are stored in settling ponds, causing environmental problems and loss of a large fraction of coals. Thermal drying of coals is not an efficient process since hot air heats both coal and water. Mechanical processes for dewatering fine coal slurries have a limit for dewatering coal. Consequently, dewatering using selective heating by conventional microwaves at 2.45 GHz and IR heating at 10 14 Hz was undertaken …
Analysis Of Computer Science Curriculum Through Development Of An Online Crime Reporting System, Linda Kress
Analysis Of Computer Science Curriculum Through Development Of An Online Crime Reporting System, Linda Kress
Graduate Theses, Dissertations, and Problem Reports (ETD)
There are inherent differences in appropriate methodologies for developing hardware-oriented and software-oriented projects. Due to a recent change in the curriculum requirements for computer science students, the need to revise the senior design curriculum for students working on software-oriented projects has arisen. With graduate student supervision, a senior design team developed an online crime reporting system. The need for revision was apparent throughout the development process. This paper discusses difficulties encountered by the team and offers solutions to those obstacles, particularly in the areas of scheduling, documentation, development environment, and the security of software applications.
Models For Calculating Confidence Intervals For Neural Networks, Ashutosh R. Nandeshwar
Models For Calculating Confidence Intervals For Neural Networks, Ashutosh R. Nandeshwar
Graduate Theses, Dissertations, and Problem Reports (ETD)
This research focused on coding and analyzing existing models to calculate confidence intervals on the results of neural networks. The three techniques for determining confidence intervals determination were the non-linear regression, the bootstrapping estimation, and the maximum likelihood estimation. Confidence intervals for non-linear regression, bootstrap estimation, and maximum likelihood were coded in Visual Basic. The neural network used the backpropagation algorithm with an input layer, one hidden layer and an output layer with one unit. The hidden layer had a logistic or binary sigmoidal activation function and the output layer had a linear activation function. These techniques were tested on …
Development And Evaluation Of Smart Materials For Structural Health Monitoring, Sandilya Hota
Development And Evaluation Of Smart Materials For Structural Health Monitoring, Sandilya Hota
Graduate Theses, Dissertations, and Problem Reports (ETD)
Most neat resins, including thermoplastics and thermosets are electrical insulators. However, conductive additives or fillers (such as carbon black, carbon fibers) can be added into resins to produce electrically conductive resins and composite materials. At a specific concentration of conductive filler, electroconductive channels are formed and the insulators are turned into semi-conductors. This transformation process can be described within the framework of the percolation theory. The objective of the present study is to develop conductive polymer composites as sensors in terms of change in their electrical resistance as a function of deformation and other parameters for health monitoring and structural …
Object-Oriented Shipboard Electric Power System Library, Ram Praveen Saladi
Object-Oriented Shipboard Electric Power System Library, Ram Praveen Saladi
Graduate Theses, Dissertations, and Problem Reports (ETD)
The objective of this thesis is to explore the powerful capabilities of using an object-oriented modeling language to model and simulate an all electric Naval Shipboard Power System. Modelica has been used to model and simulate the shipboard power system which acts as an alternative simulation tool. The shipboard system is developed using the concept of packages. Different components like the buck converter, inverter, and AC machines have been modeled as a part of the library to develop the power system. The shipboard system has been simulated as two decoupled systems, the AC and DC systems. This research further focuses …