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Articles 1651 - 1680 of 5166
Full-Text Articles in Entire DC Network
A System To Secure Websites And Educate Students About Cyber Security Through Crowdsourcing, Chitrangi Sameer Doshi
A System To Secure Websites And Educate Students About Cyber Security Through Crowdsourcing, Chitrangi Sameer Doshi
Graduate Theses, Dissertations, and Problem Reports (ETD)
Startups are innovative companies who have ideas for the betterment of the society. But, due to limited resources, and highly expensive testing procedures, they invest less time and money in securing their website and web applications. Furthermore, cyber security education lacks integrating practical knowledge with educational theoretical materials. Recognizing, the need to educate both startups and students about cyber security, this report presents Secure Startup - a novel system, that aims to provide startups with a platform to protect their website in a costeffective manner, while educating students about the real-world cyber skills. This system finds potential security problems in …
Central Supply Company Noise Survey., Janice Drelick
Central Supply Company Noise Survey., Janice Drelick
Graduate Theses, Dissertations, and Problem Reports (ETD)
Central Supply Company was interested in having a noise survey completed at two locations, a concrete batch plant and a block manufacturing plant. Noise levels were measured to evaluate the current hearing conservation program and to determine potential overexposure, compliance, and appropriateness of protection. Employee dosimetry results showed that sound levels at the concrete batch plant were not high enough to require employee enrollment in a hearing conservation program. At the block manufacturing plant, employee dosimetry results showed there was a need for a hearing conservation program, including a need for hearing protection to be worn at all times during …
Analysis Of Multi-Resolution Data Aggregation Using Push-Assisted Random Walks In Mobile Ad-Hoc Network (Manet), Sowmya Srinivasapura Devaraja
Analysis Of Multi-Resolution Data Aggregation Using Push-Assisted Random Walks In Mobile Ad-Hoc Network (Manet), Sowmya Srinivasapura Devaraja
Graduate Theses, Dissertations, and Problem Reports (ETD)
ABSTRACT Analysis of Multi-Resolution Data Aggregation using Push-assisted Random Walks in Mobile Ad-hoc Networks (MANETs) Sowmya Srinivasapura Devaraja Data Aggregation in Mobile Ad-hoc Network (MANET) has proven challenging because of changing topology. Structure-based models like tree-based, cluster-based and chain-based have high maintenance cost. In earlier works, different forms of biased random walks have been verified to be effective without need for structure maintenance. The key idea in the protocol was to use one or more tokens that are circulated using biased random walks to effectively compute the data aggregation. One such protocol is EZ-AG that uses "Push-assisted Self-Repelling Random Walks". …
Extending The Utilization Of Real Time Data For Pressure Transient Analysis., Jummanh Eyad Aldiwan
Extending The Utilization Of Real Time Data For Pressure Transient Analysis., Jummanh Eyad Aldiwan
Graduate Theses, Dissertations, and Problem Reports (ETD)
Owing to the gradual fall in prices and the constant increase in reliability of Permanent Down-hole Measurement System (PDHMS), its installation has tremendously grown in number over the recent years. The advantages of this venture, however, can only be achieved when it is improved to a source for reservoir characterization from mere surveillance and monitoring. This study evaluates workflows and systems that have been installed to change the enormous amounts of data, such as temperature, flow rate and pressure, into practicable information to enhance field performance and development. In addition to using data from real cases from intelligent fields (I-Field) …
Study Of Stress Anisotropy On Shale Rock Permeability, Charbel Nasr
Study Of Stress Anisotropy On Shale Rock Permeability, Charbel Nasr
Graduate Theses, Dissertations, and Problem Reports (ETD)
Permeability is one of the most time-consuming rock petro-physical properties to measure, especially in the case of shales and tight rocks with Micro-Darcy ranges. Several unsteady state methods like GRI, Pressure Pulse Decay (PPD) have been applied to measure permeability but unfortunately results are not accurate due to the limitations to in situ stress conditions, repeatability and reproducibility issues. To overcome this limitations a system under steady state condition and with equal confining and axial pressure has been developed, obtaining remarkable permeability measurements. This system was designed and assembled by Zamirian et al 2015 referred to as Precision Petrophysical Analysis …
Monetary Policy, Economic Conditions, And Income Inequality, Edmond Berisha
Monetary Policy, Economic Conditions, And Income Inequality, Edmond Berisha
Graduate Theses, Dissertations, and Problem Reports (ETD)
This dissertation is a collection of three chapters. The first chapter empirically investigates the relationship between interest rates, the stock market, household debt, and the distribution of income in the U.S. The results indicate that increases in the stock market and household debt increase income inequality. Moreover, the relationship between the interest rate and income inequality is found to be negative and statistically significant.;The second chapter examines the relationship between the yield spread and the income distribution. The yield spread is known to be closely related with business cycles identified by the National Bureau of Economic Research. It is low …
Optical Aberrations And Their Effect On The Centroid Location Of Unresolved Objects, Lylia Benhacine
Optical Aberrations And Their Effect On The Centroid Location Of Unresolved Objects, Lylia Benhacine
Graduate Theses, Dissertations, and Problem Reports (ETD)
Optical data from point sources of light plays a key role in systems from many different industries. In real optical systems, the photons from point sources are distributed in a pattern on the focal plane. This pattern is described by the Point Spread Function (PSF). Centroiding, defined here as calculating the center of a PSF, provides data that can subsequently be used in various state estimation problems. Thus, it is crucial to determine expected centroid accuracy so that uncertainty can be accounted for. Manufacturing defects and real-world effects affect the structure of a PSF. Much of this structure is often …
Gas Composition Effects In A Ci Engine Converted To Si Natural Gas Operation, Hemanth Kumar Bommisetty
Gas Composition Effects In A Ci Engine Converted To Si Natural Gas Operation, Hemanth Kumar Bommisetty
Graduate Theses, Dissertations, and Problem Reports (ETD)
Low-carbon fuels such as natural gas (NG) have the potential to lower the demand of petroleum-based fuels, reduce engine-out emissions, and increase IC engine thermal efficiency. One of the most rapid and efficient use of NG in the transportation sector would be as a direct replacement of the diesel fuel in compression ignition (CI) engines without any major engine modifications to the combustion chamber such as new pistons and/or engine head. An issue is the large variation in NG composition with the location and age of the gas well across U.S., which would affect engine operation, as well as the …
Bioacoustics And Behavior Of American Crocodiles In Belize, Miriam Boucher
Bioacoustics And Behavior Of American Crocodiles In Belize, Miriam Boucher
Graduate Theses, Dissertations, and Problem Reports (ETD)
American Crocodiles (Crocodylus acutus) are large-bodied crocodylians broadly distributed throughout coastal and lowland wetlands in the Americas. Despite their being large, charismatic megafauna, the study of American Crocodile ecology is still lacking in many areas. As such we assessed the behavior and bioacoustics of American Crocodiles in Belize to address the paucity of data regarding these two facets of American Crocodile ecology. We conducted behavioral observations from three sites in the coastal zone of Belize. We categorized American Crocodile behavior and recorded activity duration for observed behaviors. In conjunction with behavioral data, we also assessed study sites to quantify the …
Elucidating Function In Early Diverging Non-Flagellated Fungi Using Metabolomics And Proteomics, Gregory R. Boyce
Elucidating Function In Early Diverging Non-Flagellated Fungi Using Metabolomics And Proteomics, Gregory R. Boyce
Graduate Theses, Dissertations, and Problem Reports (ETD)
The obligate lifestyle of many of the early diverging non-flagellated fungi have long precluded them from functional studies reserved primarily for their easily cultured, more derived counterparts. Modern --omics--based tools including transciptomics, proteomics and metabolomics have facilitated a better understanding of many fungi but have yet to be employed in the study of early diverging non-flagellated fungi with few exceptions. Using global and targeted metabolomics and prototeomics across the symbiotic spectrum, a series of studies were undertaken to better understand metabolism of three symbiotic interactions: two AM fungus-plant associations including Rhizophagus dimorphicus -- grass, R. clarus -- legume, and one …
Genetic Analysis Of The Biosynthesis Of Pharmaceutically Important Dihydroergot Alkaloids By Heterologous Expression Of Claviceps Gigantea Genes In The Fungus Neosartorya Fumigata, Paige E. Bragg
Graduate Theses, Dissertations, and Problem Reports (ETD)
Ergot alkaloids are a family of secondary metabolites produced by several species of fungi. The structural similarities of ergot alkaloids to neurotransmitters give them the ability to help treat several neurological and cognitive diseases, such as dementia, Alzheimer's and Parkinson's disease. These pharmaceuticals are currently being synthesized from more complex ergot alkaloids, however they would be more efficiently synthesized from dihydroergot alkaloids. Understanding the genes involved in the synthesis of dihydroergot alkaloids, such as dihydrolysergol and dihydrolysergic acid, and elucidating their pathways will be beneficial. The Mexican maize ergot pathogen Claviceps gigantea has been reported to produce dihydrolysergol, which is …
Post-Conflict Occupations: A New Analysis Using Comparisons Of Contextual, Hybrid And Instigated Factors In Germany, Japan And Iraq, L. Amber Brugnoli
Post-Conflict Occupations: A New Analysis Using Comparisons Of Contextual, Hybrid And Instigated Factors In Germany, Japan And Iraq, L. Amber Brugnoli
Graduate Theses, Dissertations, and Problem Reports (ETD)
This research asserts that the failures in reconstructing Iraq resulted from poor decision-making and policy implementation in 2003 by comparing those efforts to the successful rebuilding of Germany and Japan, post-World War II. The focus is on actions taken by the occupying force---the United States---within the first 12 months of the operation, with a five-year post-conflict examination to determine the result of those actions. While comparisons between Iraq and Germany or Iraq and Japan have been completed previously, they are often with the intent of proving why the reconstruction of Iraq did not succeed by highlighting the differences between the …
The Costume Design Process For "Courtship" And "Valentine's Day", Lauren E. Brennan
The Costume Design Process For "Courtship" And "Valentine's Day", Lauren E. Brennan
Graduate Theses, Dissertations, and Problem Reports (ETD)
Courtship and Valentine's Day are the last two installments in a trilogy of one act plays by Horton Foote. The plays depict the everyday life of a family between the years of 1915 and 1917 in Harrison, Texas. Both Courtship and Valentine's Day are examples of "slice of life" realism. However, this slice of life is from a vantage point, as Horton Foote "wrote about [the] period, but not from [the] period" (McGonigle, Initial Design Meeting).;Above all else, the Director stressed that the purpose of both plays should be to support the journey towards finding and defining home. In an …
Precise Point Positioning Inertial Navigation Integration For Kinematic Airborne Applications, Ryan Watson
Precise Point Positioning Inertial Navigation Integration For Kinematic Airborne Applications, Ryan Watson
Graduate Theses, Dissertations, and Problem Reports (ETD)
UAVs have the potential for autonomous airborne remote sensing applications that require rapid response to natural hazards (e.g. volcano eruptions, earthquakes). As these applications require very accurate positioning, tightly coupled Global Positioning System (GPS) Precise Point Positioning (PPP) Inertial Navigation Systems (INS) are an attractive method to perform real-time aircraft positioning. In particular, PPP can achieve a level of positioning accuracy that is similar to Real-Time Kinematic (RTK) GPS, without the need of a relatively close GPS reference station. However, the PPP method is known to converge to accurate positioning estimate more slowly when compared to RTK, a drawback of …
Empirical Genetic Algorithm Parameter Tuning Concerning The Synthesis Of Combinational Logic Circuits, Joshua Ward
Empirical Genetic Algorithm Parameter Tuning Concerning The Synthesis Of Combinational Logic Circuits, Joshua Ward
Graduate Theses, Dissertations, and Problem Reports (ETD)
This study identifies optimal parameter values for a genetic algorithm used in the synthesis of combinational logic circuits. Parameters used to obtain an initial solution circuit are examined as well as parameters used to optimize solution circuits. Finding an initial solution circuit was done using a fitness function that was less influential while optimizing solution circuits used a stronger fitness function. This allowed parameters to be studied under very different circumstances. It was discovered that parameters which maintained a higher genetic diversity and strayed farther from the concept of "Survival of the Fittest" produced better results in general.
Preparation Of Sicnfs Composite Anode By Electrophoretic Deposition (Epd), Meng Yao
Preparation Of Sicnfs Composite Anode By Electrophoretic Deposition (Epd), Meng Yao
Graduate Theses, Dissertations, and Problem Reports (ETD)
Recently, lithium ion batteries (LIBs) have been widely used in the field of portable electronic devices and electric vehicles due to high adaptability, high working voltage and low toxicity. However, traditional electrode materials have greatly limited the future of LIBs because of their low theoretical specific capacities; meanwhile, new electrode materials always need to be prepared by complicated and expensive methods, indicating the small probability of large-scale promotion. In this study, the Si/CNFs composite film anode without any binder by a simple and effective method - electrophoretic deposition (EPD) - is developed, which exhibits improved electrochemical properties.;This thesis is firstly …
Storage Capacity Estimation Of Commercial Scale Injection And Storage Of Co2 In The Jacksonburg-Stringtown Oil Field, West Virginia, Zhi Zhong
Graduate Theses, Dissertations, and Problem Reports (ETD)
Geological capture, utilization and storage (CCUS) of carbon dioxide (CO2) in depleted oil and gas reservoirs is one method to reduce greenhouse gas emissions with enhanced oil recovery (EOR) and extending the life of the field. Therefore CCUS coupled with EOR is considered to be an economic approach to demonstration of commercial-scale injection and storage of anthropogenic CO2. Several critical issues should be taken into account prior to injecting large volumes of CO2, such as storage capacity, project duration and long-term containment. Reservoir characterization and 3D geological modeling are the best way to estimate the theoretical CO 2 storage capacity …
Phosphorus Determination In Forage And Manure Using Portable X-Ray Fluorescence Spectroscopy To Support Comprehensive Nutrient Management Planning, Yadav Sapkota
Graduate Theses, Dissertations, and Problem Reports (ETD)
Phosphorus (P) runoff from agricultural fields is a major cause of water quality degradation problems. A P mass balance across the farm could maintain profitability and sustainability of animal-based farms and minimize water quality problems. Comprehensive Nutrient Management Plans (CNMPs) require mineral composition, especially P, data on soil, forage, and manure samples for accurate planning. However, traditional wet chemical methods of P determination are costly, time-consuming, and generate hazardous waste. X-ray fluorescence (XRF) could overcome many of these disadvantages and allow rapid determination of P concentrations. Portable XRF (PXRF) units are Energy Dispersive (ED) systems with low power X-ray tubes …
Three Essays On The Economic Impacts Of Immigration, Juan T. Sayago-Gomez
Three Essays On The Economic Impacts Of Immigration, Juan T. Sayago-Gomez
Graduate Theses, Dissertations, and Problem Reports (ETD)
The movement of population is a part of the adjustment process in economics and society to changes in conditions and the environment. However migration can affect the host country and have negative consequences, such as poverty, crime, and overcrowding the social systems that provide access to health care and public goods. This dissertation addresses some cases of what are the consequences of migration: First it considers the opening of the European Union to new countries in 2004 and 2007 insignificant effects from the increase of all immigrants, African immigrants, and Latin American immigrants on crime rates of the regions, but …
The Impact Of Shale Gas On Gas Storage Performance, Arya Maher Sattari
The Impact Of Shale Gas On Gas Storage Performance, Arya Maher Sattari
Graduate Theses, Dissertations, and Problem Reports (ETD)
The advances in technology has resulted in significant gas production from the shale formations across the United States. Marcellus Shale which spans most of the Appalachian Basin is one the most prolific gas producers in the United States. Marcellus Shale gas has a distinctly different composition from the existing Northern Appalachian typical dry natural gas. As gas production from Marcellus shale has increased, so has the amount of the shale gas in the natural gas transportation system in the Appalachian Basin. The composition of the injected gas into a storage reservoir can the storage volumes, pressures, the withdrawal rate, and …
Application Of Computer Vision For Roller Operation Management, Mohammad Hadi Niki Rashidi
Application Of Computer Vision For Roller Operation Management, Mohammad Hadi Niki Rashidi
Graduate Theses, Dissertations, and Problem Reports (ETD)
Compaction is the last and possibly the most important phase in construction of asphalt concrete (AC) pavements. Compaction densifies the loose (AC) mat, producing a stable surface with low permeability. The process strongly affects the AC performance properties. Too much compaction may cause aggregate degradation and low air void content facilitating bleeding and rutting. On the other hand too little compaction may result in higher air void content facilitating oxidation and water permeability issues, rutting due to further densification by traffic and reduced fatigue life. Therefore, compaction is a critical issue in AC pavement construction.;The common practice for compacting a …
Consumers' Uses Of Nutrient Content Claims And Their Relationship With Health Orientation And Online Media Exposure And Attention, Kelly A. Williams
Consumers' Uses Of Nutrient Content Claims And Their Relationship With Health Orientation And Online Media Exposure And Attention, Kelly A. Williams
Graduate Theses, Dissertations, and Problem Reports (ETD)
The purpose of this research is to explore consumers' general uses of nutrient content claims on food packaging. In addition, the research looks at an individual's self-reported health orientation, as well as their personal online media usage. This study used quantitative research to explore these factors. An online survey of the individuals who make personal health and food choices was conducted to better understand their reported uses of nutritional claims, as well as their lifestyle habits. Findings suggest that individuals do use nutrient content claims while looking at food packaging, and that this significantly relates to their health orientation and …
The Effect Of Lower Extremity Asymmetries On Low Back And Lower Extremity Pain With Pregnancy, Erica Casto
The Effect Of Lower Extremity Asymmetries On Low Back And Lower Extremity Pain With Pregnancy, Erica Casto
Graduate Theses, Dissertations, and Problem Reports (ETD)
Approximately 50% of pregnant women experience low back and lower extremity pain during pregnancy, many of which continue to experience pain post-partum. It is known that many women experience changes in foot size, arch height and lower extremity alignment. However, the mechanism by which these changes are related to pain is relatively unknown, specifically in regard to asymmetric changes in alignment. Therefore, the purpose of this study was to assess alignment during pregnancy in order to determine if asymmetries occurring in women during pregnancy are related to low back, hip, knee, and foot pain. Methods: Ten women in their third …
Coaching Knowledge And Noticing In Youth Sports: Challenging The Assumption Of Expertise, Philip James Liversedge
Coaching Knowledge And Noticing In Youth Sports: Challenging The Assumption Of Expertise, Philip James Liversedge
Graduate Theses, Dissertations, and Problem Reports (ETD)
Sport is an integral part of the majority of children's lives. Participation in sport can provide children with many physical and psychological benefits. Tasked with coaching children are coaches who are often parents and volunteers. These coaches have a variety of different levels of experience and expertise. A question that must be answered is what are the range of kinds of knowledge that coaches rely upon? This study delves further and attempts to understand how coaches use this knowledge in the act of noticing. Alongside understanding the complexity of coaching this study attempts to demonstrate the individuality and diversity in …
Elucidating Mechanisms Of Neurobehavioral Dysfunction In A Rodent Model Of Traumatic Brain Injury, Aric F. Logsdon
Elucidating Mechanisms Of Neurobehavioral Dysfunction In A Rodent Model Of Traumatic Brain Injury, Aric F. Logsdon
Graduate Theses, Dissertations, and Problem Reports (ETD)
Neuropsychiatric symptoms and cognitive deficits are common among victims of a traumatic brain injury (TBI), and currently, there are no effective treatments to improve outcome. We first developed a clinically-relevant blast TBI model based on lung scaling parameters to elucidate mechanisms of neuronal cell death. In order to discover effective treatments to improve outcome, we had to validate our novel preclinical model of TBI. TBI is an external force that can cause damage to the neurovascular unit (NVU), which can lead to secondary effects, cell death and behavioral dysfunction. In our first study we observed that our model damaged the …
Determination Of Strain Patterns Across The Root-Stem Transition Zone In Trees, Kenneth Edward Beezley
Determination Of Strain Patterns Across The Root-Stem Transition Zone In Trees, Kenneth Edward Beezley
Graduate Theses, Dissertations, and Problem Reports (ETD)
Trees are subjected to mechanical stressors, induced via dynamic (wind) and static (gravitational) forces, and must properly acclimate during their lifespan or face premature mortality. Resource allocation as a stress response is vital for tree survival, and can include the shedding of woody parts, adaptive growth, hormonal signaling cascades, and the initiation of energy transfer mechanisms. The strain resulting from stress intercepted by the canopy and transferred throughout the tree is of significant importance, not only for tree survival, but for the safety and well-being of the human population found in close proximity. As trees age and adapt to stressors …
Laugh With Me: Effects Of Shortcoms On Students' Motivation, Confidence, And Cultural Understanding In The French Classroom, Juliette Duthoit
Laugh With Me: Effects Of Shortcoms On Students' Motivation, Confidence, And Cultural Understanding In The French Classroom, Juliette Duthoit
Graduate Theses, Dissertations, and Problem Reports (ETD)
Research has shown that authentic audio-visual materials have had a positive effect in foreign language classroom on learners' motivation and their confidence. Studies have also shown that humor can aid learners' memorization and improve their motivation, whether it is used in course material or through the instructor's interaction with the learners. Few researchers have focused, however, on the effect of humorous audio-visual material on foreign language learning. The aim of this thesis is to research the effects of humor in authentic video programming on the learning of French. In particular it examines the genre of the shortcom and how its …
Directing The Total Program Of Agricultural Education As Perceived By Retired Secondary Agriculture Instructors In West Virginia, Dylan Demosthenes Johnson
Directing The Total Program Of Agricultural Education As Perceived By Retired Secondary Agriculture Instructors In West Virginia, Dylan Demosthenes Johnson
Graduate Theses, Dissertations, and Problem Reports (ETD)
The purpose of this study was to determine retired secondary agriculture educators' perceptions on the various challenges, barriers, as well as successes and satisfaction of teaching high school agriculture in West Virginia. The researcher chose to conduct a qualitative study through semi-structured interviews. This study was limited to five retired agriculture instructors who retired within the past 10 years. The researcher found the following: high satisfaction in career choice, strong support for the total programs from multiple facets including community, administration and parents, adult education programming is a vital part of the total program and support, FFA is vital to …
In-Cylinder Diagnostics Using Feedback From Resonant Cavity Ignition Sources, James F. Hunsucker Iii
In-Cylinder Diagnostics Using Feedback From Resonant Cavity Ignition Sources, James F. Hunsucker Iii
Graduate Theses, Dissertations, and Problem Reports (ETD)
The Quarter-Wave Coaxial Cavity Resonator (QWCCR) Plasma Igniter is a spark ignition replacement system based on a novel technology. This system creates coronal plasma through the use of radio frequency voltage step-up. Because this device is an open loop resonant structure, it is sensitive to changes in the environment it operates in, the physical and the combustion environment. A relationship can be developed between the effects of the pressure in the combustion environment and the changes in resonance frequency experienced by the igniter. These diagnostic capabilities can be utilized to detect and alleviate misfires, incomplete fuel burns, etc. in an …
Implementation And Evaluation Of Teach-Back As A Pedagogical Method For Delivering Fall Prevention Education To Older Adults In An Inpatient Hospital Setting, Elizabeth Bosley
Implementation And Evaluation Of Teach-Back As A Pedagogical Method For Delivering Fall Prevention Education To Older Adults In An Inpatient Hospital Setting, Elizabeth Bosley
Graduate Theses, Dissertations, and Problem Reports (ETD)
Background: In the United States, the most common cause of both nonfatal injuries and accidental deaths for people older than 65 is falls. In the hospital setting, 700,000 to 1,000,000 falls occur annually resulting in increased cost and reduced reimbursement. There exists a critical need to explore potential interventions for effectiveness in reducing both the incidence and severity of falls. Teach-back is a patient education methodology that is a highly recommended safety practice and may be an effective intervention to reduce patient falls in the hospital setting.;Objectives: 1) To increase the use and documentation of a validated patient education methodology …