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Multispectral Iris Recognition Analysis: Techniques And Evaluation, Christopher K. Boyce
Multispectral Iris Recognition Analysis: Techniques And Evaluation, Christopher K. Boyce
Graduate Theses, Dissertations, and Problem Reports (ETD)
This thesis explores the benefits of using multispectral iris information acquired using a narrow-band multispectral imaging system. Commercial iris recognition systems typically sense the iridal reflection pertaining to the near-infrared (IR) range of the electromagnetic spectrum. While near-infrared imaging does give a very reasonable image of the iris texture, it only exploits a narrow band of spectral information. By incorporating other wavelength ranges (infrared, red, green, blue) in iris recognition systems, the reflectance and absorbance properties of the iris tissue can be exploited to enhance recognition performance. Furthermore, the impact of eye color on iris matching performance can be determined. …
A Methodology For Software Performance Modeling And Its Application To A Border Inspection System, Paola Bracchi
A Methodology For Software Performance Modeling And Its Application To A Border Inspection System, Paola Bracchi
Graduate Theses, Dissertations, and Problem Reports (ETD)
It is essential that software systems meet their performance objectives. Many factors affect software performance and it is fundamental to identify those factors and the magnitude of their effects early in the software lifecycle to avoid costly and extensive changes to software design, implementation, or requirements. In the last decade the development of techniques and methodologies to carry out performance analysis in the early stages of the software lifecycle has gained a lot of attention within the research community. Different approaches to evaluate software performance have been developed. Each of them is characterized by a certain software specification and performance …
Economic Evaluation Of Air Pollution Reduction Of Phase I Power Plants In West Virginia: An Output Distance Function Approach, Huilan Li
Graduate Theses, Dissertations, and Problem Reports (ETD)
Air pollutants from coal-fired power plants are nonmarket environmental bads. Title IV of the 1990 Clean Air Act Amendments (CAAA) sets the stage for the dirtiest power plants to reduce emissions of SO2 and NO x in two phases. Title IV allocates plants SO2 allowances as a variation of "pollution rights" based on averaged historical emission levels and allows free-trade of allowances. This is the world's first large scale pollutant trading market. Trading allows for improved efficiency, flexibility, and reduced pollution.;This study employs the output distance function approach to evaluate the pollution reduction behavior and efficiency of West Virginia power …
Impact Of Optimally Placed Var Support On Electricity Spot Pricing, Ramesh Kumar V. Khajjayam
Impact Of Optimally Placed Var Support On Electricity Spot Pricing, Ramesh Kumar V. Khajjayam
Graduate Theses, Dissertations, and Problem Reports (ETD)
In view of deregulation and privatization processes, electricity pricing becomes one of the most important issues. The increases in power flows and environmental constraints are forcing electricity utilities to install new VAR equipment to enhance network operation. In this thesis a nonlinear multi-objective optimization problem has been formulated to maximize both social welfare and the maximum distance to collapse point in an open power market using reactive support like Static Var Compensator (SVC). The production and consumption costs of reactive power are intended to provide proper market signals to the electricity market agents. They are included in the multi-objective Optimal …
Quantifying Effects Of Vehicle Weight And Terrain On Emissions, Fuel Economy, And Engine Behavior, Corey M. Strimer
Quantifying Effects Of Vehicle Weight And Terrain On Emissions, Fuel Economy, And Engine Behavior, Corey M. Strimer
Graduate Theses, Dissertations, and Problem Reports (ETD)
On-board emissions measurement for heavy-duty vehicles has garnered greater significance because 2007 marks the beginning of gaseous emissions monitoring for in-use vehicles in the United States [1]. Emissions compliance must be shown in a "not to exceed" (NTE) zone that emphasizes engine operation at higher power. An over-the-road 1996 Peterbilt tractor was instrumented with the West Virginia University Mobile Emissions Measurement System (MEMS) to determine how often the truck entered the NTE, and the emissions from the vehicle, as it was driven over varying terrain at multiple test weights. Distance-specific NOX emissions increase by approximately X/2% for an X% increase …
Design, Development And Qualification Of Compact Mobile Emissions Measurement System (Cmems) For Real-Time On-Board Emissions Measurement, Aseem Tiwari
Graduate Theses, Dissertations, and Problem Reports (ETD)
The objective of this study was to design, develop and qualify the Compact Mobile Emissions Measurement System (CMEMS) for real-time on-board measurement of exhaust emissions from heavy-duty diesel vehicles. This study was aimed at developing a system more compact and lighter with respect to the existing Mobile Emissions Measurement System (MEMS), so that the entire system could be mounted on the tail pipe of the test vehicle in order to reduce installation time, power requirements and manpower requirements. This was achieved by judicious selection of commercially available compact solid-state gas analyzers, and development of a sampling system which was significantly …
Hygrothermal Effects On Free Vibration Characteristics Of Rotating Composite Beams, Sandeep Vennam
Hygrothermal Effects On Free Vibration Characteristics Of Rotating Composite Beams, Sandeep Vennam
Graduate Theses, Dissertations, and Problem Reports (ETD)
Free vibration characteristics of a rotating composite cantilever beams subjected to a hygrothermal environment is studied using the finite element analysis. The problem is formulated using a First Order Shear Deformation theory (FSDT) for composite materials. The finite element formulation is based on variational principles and the equations are solved by a code generated using MATLAB. Hygrothermal effects are incorporated using empirical relations degrading the material stiffness property of the matrix depending on the temperature and moisture concentration. The dynamic analysis of a rotating composite beam are validated by comparing with that available in literature and the hygrothermal incorporation is …
Ground Penetrating Radar (Gpr) Based System For Nondestructive Detection Of Interior Defects In Wooden Logs, Dayakar Devaru
Ground Penetrating Radar (Gpr) Based System For Nondestructive Detection Of Interior Defects In Wooden Logs, Dayakar Devaru
Graduate Theses, Dissertations, and Problem Reports (ETD)
A previous study used GPR to scan logs and the scanned data was processed and analyzed using RADAN software. This data processing using RADAN software needs an expert and is time consuming. Also, the output from RADAN software cannot be used to generate manufacturing process instructions since it will be in the form of an image. For online implementation of GPR scanning, a quick automated defect detection system with numerical output is required.;To incorporate automated defect detection system, a MATLAB algorithm has been developed. Validation of the MATLAB algorithm output has been done by comparing with the results of RADAN …
Selection Of Pilot Buses For Var Support And Voltage Stability Risk Analysis, Talpasai Lakkaraju
Selection Of Pilot Buses For Var Support And Voltage Stability Risk Analysis, Talpasai Lakkaraju
Graduate Theses, Dissertations, and Problem Reports (ETD)
The primary objective of this thesis is to develop an index for the placement of reactive power support devices to ensure reliable operation of power systems. It is especially aimed at improving the load voltage profile and system security when loading is increased. Maintaining a good system voltage profile and security is an important aspect in voltage stability studies, especially with the ever increasing power consumption and system disturbances or contingencies. A new VAR support placement algorithm is developed using a standard continuation power flow and N-1 contingency criterion to pinpoint the best locations for the placement of VAR devices. …
Cooperative Diversity Using Mimo Systems, Ramachandran Rajagopalan
Cooperative Diversity Using Mimo Systems, Ramachandran Rajagopalan
Graduate Theses, Dissertations, and Problem Reports (ETD)
Multipath fading is one of the primary factors for degrading the performance in a wireless network. Information theoretic and past research suggest the use various diversity techniques to combat fading in wireless networks. Antenna diversity, a form of diversity technique, when incorporated in a wireless transceiver increases the system capacity and is one of the effective methods to combat fading in wireless systems. Also, recent research by Laneman et.al., Sendonaris et.al. suggests that cooperation among users in a wireless networks is an effective approach for a better signal reception in multipath fading environments. The diversity gains obtained by cooperation among …
Statistical Estimation Of Strain Energy Release Rate Of Delaminated Composites, Rajesh Vijayaraghavan
Statistical Estimation Of Strain Energy Release Rate Of Delaminated Composites, Rajesh Vijayaraghavan
Graduate Theses, Dissertations, and Problem Reports (ETD)
An improved two-sublaminate model based on first-order shear deformation theory is implemented in a general-purpose finite element software (ANSYS) to study delaminated composite plates. Double cantilever beam and end-notched flexure models of unidirectional and multidirectional composite plates with mid-plane and offset delaminations are analyzed. The total strain energy release rate and the mode-I, mode-II and mode-III components are evaluated using a plate-theory-based crack-closure technique.;The effects of variation of material properties, ply thickness, fiber orientation, coefficient of friction between the crack surfaces, finite element mesh density and virtual crack-closure length and applied load on the mixed-mode strain energy release rates are …
Forwarding Strategies And Optimal Power Allocation For Coherent And Noncoherent Relay Networks, Somak Datta Gupta
Forwarding Strategies And Optimal Power Allocation For Coherent And Noncoherent Relay Networks, Somak Datta Gupta
Graduate Theses, Dissertations, and Problem Reports (ETD)
In fading wireless channels, relays are used with the aim of achieving diversity and thus overall performance gain. In cooperative relay networks, various forwarding techniques like amplify and forward (AF) and decode and forward (DF) are used at the relay for better throughput and improved BER performance than traditional multihop systems. In a power constrained environment, the performance can be further improved by using an optimal power allocation strategy. The relative position of the relay with respect to the source and destination also has an immense effect on the efficacy of the relay.;We position the relay at various positions in …
Characterization Of Laboratory Simulated Road Paving-Like Asphalt By High Performance Liquid Chromatography And Gas Chromatography-Mass Spectrometry, Brandon F. Law
Graduate Theses, Dissertations, and Problem Reports (ETD)
Prolonged, extensive exposure to asphalt fume has been associated with several adverse health effects. Inhaled polycyclic aromatic hydrocarbons (PAHs) from asphalt fume exposure are of concern. The objective of this study was to characterize both qualitative and quantitative differences between fumes generated at 150°C and 180°C using a well controlled laboratory road paving fume generation system. Fumes were characterized by (1) total vapor and particulate concentration, (2) simulated boiling point profile and (3) specific PAH content. The mean concentrations of the vapor fractions generated at 180°C and 150°C were 23.3 mg/m3 and 11.2 mg/m3, respectively, demonstrating a statistically significant increase …
Coordinated Traffic Signal Systems For Municipalities, Scott K. Nale
Coordinated Traffic Signal Systems For Municipalities, Scott K. Nale
Graduate Theses, Dissertations, and Problem Reports (ETD)
Many municipalities have a need for a document which examines installation and operations methods used in coordinated traffic signal systems. Included within this document are the results of surveys of various municipalities which range in population from thirty three thousand persons to in excess of five hundred thousand persons. Along with the state of practice information, some conclusions and recommendations are defined so that municipalities may begin to implement coordinated traffic signal systems within their jurisdiction. This document will be of interest to those persons who manage, operate, and maintain traffic signal systems; in addition, engineers and municipal officials tasked …
Facilitating Sensor Interoperability And Incorporating Quality In Fingerprint Matching Systems, Rohan D. Nadgir
Facilitating Sensor Interoperability And Incorporating Quality In Fingerprint Matching Systems, Rohan D. Nadgir
Graduate Theses, Dissertations, and Problem Reports (ETD)
This thesis addresses the issues of sensor interoperability and quality in the context of fingerprints and makes a three-fold contribution. The first contribution is a method to facilitate fingerprint sensor interoperability that involves the comparison of fingerprint images originating from multiple sensors. The proposed technique models the relationship between images acquired by two different sensors using a Thin Plate Spline (TPS) function. Such a calibration model is observed to enhance the inter-sensor matching performance on the MSU dataset containing images from optical and capacitive sensors. Experiments indicate that the proposed calibration scheme improves the inter-sensor Genuine Accept Rate (GAR) by …
Evaluation And Performance Prediction Of Multimodal Biometric Systems, Nevena Samoska
Evaluation And Performance Prediction Of Multimodal Biometric Systems, Nevena Samoska
Graduate Theses, Dissertations, and Problem Reports (ETD)
Multibiometric systems fuse the evidence presented by different biometric sources in order to improve the matching accuracy of a biometric system. In such systems, information fusion can be performed at different levels; however, integration at the matching score level is the most commonly used approach due to the tradeoff between information content and accessibility. This work develops a tool in order to analyze the impact of various normalization schemes on the matching performance of score-level fusion algorithms. The tool permits the systematic evaluation of different fusion rules after employing normalizing and mapping the match scores of different modalities into a …
Curve Number Dependence On Basic Hydrologic Variables Governing Runoff, Samuel J. Lamont
Curve Number Dependence On Basic Hydrologic Variables Governing Runoff, Samuel J. Lamont
Graduate Theses, Dissertations, and Problem Reports (ETD)
The suitability of applying the NRCS Curve Number (CN) to continuous runoff prediction is examined by studying the dependence of the CN on several hydrologic variables. The continuous watershed model Hydrologic Simulation Program-FORTRAN (HSPF) is employed as a theoretical watershed in two numerical procedures designed to investigate the influence of soil type, soil depth, storm depth, storm distribution, and initial abstraction ratio value (lambda) on the CN. This study stems from a concurrent project involving the design of a computer modeling system to support the Cumulative Hydrologic Impact Assessments (CHIA) of over 230 watersheds throughout WV. A link between the …
Proton Coupled Electron Transfer Kinetics Of Redox Centers Attached To Self -Assembled Monolayers On Electrodes, Nicholas Madhiri
Proton Coupled Electron Transfer Kinetics Of Redox Centers Attached To Self -Assembled Monolayers On Electrodes, Nicholas Madhiri
Graduate Theses, Dissertations, and Problem Reports (ETD)
Proton-coupled electron transfer (PCET) reactions play an important role in many biochemical systems and have been focus of great interest recently. These reactions can be represented by a general equation: Ox + ne - + hH+ ↔ Red.;Traditionally, these reactions have been studied by applying predictions from the stepwise model developed by E. Laviron in the early 1980s. This model is based upon treating the proton transfer step and electron transfer step as discrete steps. Proton transfer is assumed to be at equilibrium under all conditions. However, there is also evidence suggesting a concerted mechanism in which the electron and …
Media Representation And Portrayal Of African-American Athletes, Justin Zackal
Media Representation And Portrayal Of African-American Athletes, Justin Zackal
Graduate Theses, Dissertations, and Problem Reports (ETD)
The racial composition of athletes competing at major colleges and in professional sports in America is disproportioned to the general population and journalists that cover their sports. With African-Americans accounting for such a large contingent of athletes, how their race is perceived by society is often predicated on the coverage they receive. The purpose of this study is to look at the importance of media coverage of African-American athletes, and to show if White media scrutinize African-American athletes more than they do White athletes. The misrepresentation of African-American athletes in the press box could mean an unequal playing field in …
The Impact Of Relative Permeability On Type Curves For Coalbed Methane Reservoirs, Sunil Lakshminarayanan
The Impact Of Relative Permeability On Type Curves For Coalbed Methane Reservoirs, Sunil Lakshminarayanan
Graduate Theses, Dissertations, and Problem Reports (ETD)
Coalbed methane (CBM) is considered an unconventional gas resource produced from coal seams usually with low permeability at shallow depths. Analyzing the production performance in CBM reservoirs is challenging, especially at the early stages of recovery. Most of the small producers in the Appalachian Basin cannot afford personnel or meet economical requirements involved in the use of the numerical simulator to evaluate CBM reservoirs. Production type curves are an excellent tool for predicting the performance of CBM reservoirs. A set of type curves have been previously developed for horizontal and vertical wells in CBM reservoirs. The relative permeability characteristics have …
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 …
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 …
Web-Based Forensic Information Management System, Parmjit Singh
Web-Based Forensic Information Management System, Parmjit Singh
Graduate Theses, Dissertations, and Problem Reports (ETD)
The focus of this work was on the design and implementation of a web based forensic information management system for the West Virginia State Police Forensics Laboratory (WVSPFL). The software tool enables law enforcement agents to submit crime information to the Forensic Laboratory via a secure Internet connection. The tool also enables each of the nine units of WVSPFL to process the information electronically. Online electronic forms were created to mirror the existing paper based forms, making the transition easier. The existing processes were standardized and streamlined, there by minimizing information inconsistency. The crime information once gathered is automatically uploaded …
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 …
Resistance To Change Of Responding To Stimulus Relations, Marta Leon
Resistance To Change Of Responding To Stimulus Relations, Marta Leon
Graduate Theses, Dissertations, and Problem Reports (ETD)
Three experiments assessed resistance to change of response accuracy under different reinforcement rates. Fifteen college students responded to a matching-to-sample task, with one set of baseline conditional relations reinforced at a rich rate and another set reinforced at a lean rate. In two experiments, resistance to change was assessed by presenting tests for emergent equivalence relations and then reversing some of the baseline conditional discriminations and examining changes in the equivalence classes after the reversal; the experiments differed in the presence or absence of overtraining for the rich condition. The third experiment assessed resistance to change by testing for emergent …
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. …
Geographic Interpretation: The Role Of Spatial Knowledge In The Interpretation Of Natural Resources, Heidi Leigh Bailey
Geographic Interpretation: The Role Of Spatial Knowledge In The Interpretation Of Natural Resources, Heidi Leigh Bailey
Graduate Theses, Dissertations, and Problem Reports (ETD)
A surge of interest in geographic information has stemmed from the recent proliferation of Geographic Information Systems, Global Positioning Systems, and web-based tools such as Google Earth. This growing interest in geographic information has many implications for natural resource interpretation. Visitor centers and interpretive centers have long been sources of geographic information---providing maps and exhibits depicting a site or region. Such displays come in all shapes and sizes and in a variety of media, including maps, models, projections, animations and dioramas. Yet missing from the field of interpretation is research on the effectiveness of these tools in conveying geographic information …
A Component-Based Approach To Verification And Validation Of Formal Software Models, Dejan Desovski
A Component-Based Approach To Verification And Validation Of Formal Software Models, Dejan Desovski
Graduate Theses, Dissertations, and Problem Reports (ETD)
Formal methods for verification of software systems often face the problem of state explosion and complexity. We present a divide and conquer methodology that leads to component based verification and analysis of formal requirements specifications expressed using Software Cost Reduction (SCR) models. The proposed methodology has the following steps: model partitioning, partition verification (either by model checking or testing) and composition of verification results.;We define a novel decomposition methodology for SCR specifications based on min-cut graph algorithms. The methodology identifies components in given SCR specifications and automates related abstraction methods. It also provides guidance on how to perform verification and …
Win, Lose, And Draw: Civil War And The Determinants Of State Concessions, Frank Vaughan
Win, Lose, And Draw: Civil War And The Determinants Of State Concessions, Frank Vaughan
Graduate Theses, Dissertations, and Problem Reports (ETD)
This research develops an explanation of the causal factors that influence state concessions offered in negotiated settlements ending civil wars. It proposes an explanation drawn from bargaining theory, existing literature addressing the likelihood of negotiated settlements, and inductively derived variables. Specifically, it integrates the link between several general factors associated with conflict---the costs of war, incentives to cheat, the divisibility of stakes, the degree of democracy of the state, the presence or absence of a stalemate, and the timing and location of the settlement---and the degree to which states make concessions to the rebels. The relationships between these factors are …