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A Computational Investigation Of Contact Pressure For A Non-Pnemautic Wheel With A Meta-Material Shear Band, Renuka Jagadish
A Computational Investigation Of Contact Pressure For A Non-Pnemautic Wheel With A Meta-Material Shear Band, Renuka Jagadish
All Theses
One of the missions of National Aeronautics Space Administration (NASA) is to develop a vehicle that can travel for a longer distance on the moon and have a greater degree of mobility compared to the currently used Lunar Roving Vehicles (LRV). This led to the development of the All-Terrain Hex-Limed Extra-Terrestrial Explorer (ATHLETE), which requires a significant advance in the type of wheels that must be used on this highly mobile lander. The Michelin Lunar Wheel, which is a non-pneumatic tire invented by Michelin Researche et Technologie has been identified as one of the key designs capable of performing on …
Advanced Automotive Thermal Management - Operation Of An Electric Radiator Fan Array For Reduced Electric Power Consumption, Amit Jagarwal
Advanced Automotive Thermal Management - Operation Of An Electric Radiator Fan Array For Reduced Electric Power Consumption, Amit Jagarwal
All Theses
The depletion of fossil fuel reserves and the limited renewable energy resources have raised public awareness about the need to improve fuel efficiency in ground transportation vehicles. The internal combustion engine remains one of the primary industrial machines using gasoline or diesel fuel to produce mechanical work. In these engines, the cooling system performs the vital role of removing waste heat to ensure normal combustion processes in the cylinders. To accomplish this task, the radiator, the radiator fan(s), the thermostat valve, and the water pump operated by circulating cooling fluid through the engine block and rejecting heat to the atmosphere. …
Assessment And Analysis Of Emotional Intelligence In Engineering Students, Xiaodan Zhou
Assessment And Analysis Of Emotional Intelligence In Engineering Students, Xiaodan Zhou
All Theses
ABSTRACT
Current research on the importance and relevance of the relationship between emotional intelligence and work outcomes has continuously gained momentum since the publication of Daniel Goleman's best seller Emotional Intelligence: Why It Can Matter More Than IQ (Goleman, 1995). Professional expertise is no longer the only standard by which to evaluate graduates. 'Soft skills', like emotional intelligence are viewed as effective ways, to distinguish potential high-performance workers and those who will be 'no more than' a worker. This paper made an attempt to correlate emotional intelligence with academic performance of civil engineering students. The emotional capability of the students …
Neomycin-Enhanced Carbodiimide Cross-Linking For Glycosaminoglycan Stability In Bioprosthetic Heart Valves, Joshua Leong
Neomycin-Enhanced Carbodiimide Cross-Linking For Glycosaminoglycan Stability In Bioprosthetic Heart Valves, Joshua Leong
All Theses
Valvular heart diseases lead to over 290,000 heart valve replacements worldwide each year, and approximately half of these involve replacement with a bioprosthetic heart valve (BHV) [1]. BHVs exhibit excellent hemocompatibility, but suffer from inadequate long-term durability with most adult implanted valves failing within 12 to 15 years after implantation [2]. Although this may be adequate for some individuals, BHV implantation may be contraindicated in younger individuals to avoid reoperation. Even in elder recipients, valve dysfunction can still cause death or reoperation that could be avoided with increased BHV durability. Therefore, investigation into methods of increasing BHV durability can not …
Analyzing The Restricted Phase Of The Graduated Driver's Licensing System: The Effect Of Driving Experience, Christopher Graham
Analyzing The Restricted Phase Of The Graduated Driver's Licensing System: The Effect Of Driving Experience, Christopher Graham
All Theses
Beginning in 1996, states began adopting what is known as the graduated driver's licensing system (GDL) in an attempt to reduce traffic hazards for teenagers. This was a response to previous literature which suggested teens had an elevated risk for motor vehicle hazards, compared to all other age groups. The GDL system is split into three separate stages, in an attempt to ease the teenagers into the driving process. These stages are known as the permit stage, the restricted stage, and the unrestricted stage. While much of the past literature has focused on whether or not the GDL system is …
Prospective Memory In The Nursing Environment: Effects Of Type Of Prospective Task And Prospective Load, Nicole Fink
Prospective Memory In The Nursing Environment: Effects Of Type Of Prospective Task And Prospective Load, Nicole Fink
All Theses
The nursing environment is replete with event-based and time-based prospective memory (PM) tasks (i.e. high prospective load). However, the effects of time-based prospective load, prospective load in naturalistic settings, and prospective load with unique retrospective components for each PM task remains unknown. To address this gap, the current study used a mockup patient room setting to examine the effects of PM type (event-based or time based) and prospective load (1 vs. 4 tasks) with unique prospective and retrospective components) on ongoing task and PM task performance. Registered nurses completed an ongoing documentation task while also remembering to perform 1 or …
Characterization Of Transgenic Plum Lines Expressing Gastrodia Antifungal Protein (Gafp)-1, Hetalben Kalariya
Characterization Of Transgenic Plum Lines Expressing Gastrodia Antifungal Protein (Gafp)-1, Hetalben Kalariya
All Theses
The Gastrodia antifungal protein (GAFP-1) is a mannose-binding lectin originating from the Asiatic orchid Gastrodia elata. It has potential for conferring resistance to fungal and non-fungal pathogens in other plants which is currently being investigated. The goals of this research project were to determine (i) the potential movement of GAFP-1 protein from transgenic rootstocks into the non-transgenic scion of chimeric-grafted trees (ii) the levels of GAFP-1 protein in lines of the cultivar Bluebyrd expressing the gene gafp-1 under the control of the polyubiquitin promoter bul409, and (iii) the susceptibility of selected lines to the root pathogens Phytophthora cinnamomi Rands and …
Evaluation Of A Pilot-Scale Constructed Wetland Treatment System For Renovation Of A Specific Oilfield Produced Water For Beneficial Use, Jennifer Horner
Evaluation Of A Pilot-Scale Constructed Wetland Treatment System For Renovation Of A Specific Oilfield Produced Water For Beneficial Use, Jennifer Horner
All Theses
Oilfield produced waters (OPWs) are brought to the surface when oil reservoirs contained in water-bearing geologic units are extracted. Large volumes of OPW present environmental challenges concerning disposal, as well as potential opportunities for beneficial use if constituents posing risk can be remediated. In this study a pilot-scale constructed wetland treatment system (CWTS) was specifically designed to treat an OPW from sub-Saharan Africa for use in irrigation and livestock watering. Three major objectives were to: characterize and identify constituents of concern in the OPW in terms of beneficial use, evaluate treatment performance of a pilot-scale constructed wetland treatment system for …
Socioeconomic Determinants Of Infant Mortality Rate Disparities, Alex Krasikov
Socioeconomic Determinants Of Infant Mortality Rate Disparities, Alex Krasikov
All Theses
This study examines variation in infant mortality rate (IMR) between black and white populations. Data were drawn from CDC Birth Cohort Linked Birth Infant Data for 2004. Author examined numerous socioeconomic factors that could explain the gap in IMR between two races. Each potential factor was examined separately before introducing into a complete model. The proposed model explains about 11 percentage points in difference between groups, and showed factors that can be affected by change in public policy, play statistically significant role in IMR disparity. We can look at the IMR as a socioeconomic indicator that highlights both negative and …
Incorporating Function Structures Into Morphological Charts: A User Study, Jenkins Richardson Iii
Incorporating Function Structures Into Morphological Charts: A User Study, Jenkins Richardson Iii
All Theses
A morphological chart is an ideation tool that represents a large qualitative design space. Currently, morphological charts use a function list to as the function representation of the design problem. Using the morphological chart means (solutions) that can perform each function are generated. Combining one means from each function produces an integrated conceptual design solution. By repeating this process with all possible combination contained in the morphological chart, a long list of conceptual design solutions will be generated, although not all will be practical. This long list of potential design solutions is difficult to analyze and there are limited systematic …
Creatures Of Habit, Jennifer Miller
Creatures Of Habit, Jennifer Miller
All Theses
My work reflects my interests in drawing, illustration, science, and culture. Being born and raised in desert suburbia, my environment consisted of small middle class homes in a grid of roads and sidewalks, punctuated by small pockets of natural landscape. However, as I watched then, and as I still see now, many of the things I have come to love and appreciate about this environment are disappearing before my eyes. As people's values change, so does the natural and unnatural landscape. The natural things are replaced with our own excess, everything needing to be larger, louder and flashier, all so …
Development Of A Carbohydrate Microarray System And A Microcantilever-Based Biosensor For Detection Of Target Bacteria, Yunyan Cheng
Development Of A Carbohydrate Microarray System And A Microcantilever-Based Biosensor For Detection Of Target Bacteria, Yunyan Cheng
All Theses
The increasing number of disease outbreaks results in a demand for novel pathogen detectors. Carbohydrates serving as receptors for pathogen lectins have become the focus of such research. Two primary sugars, ‡-D-mannose and ‡-L-fucose, as receptors for Escherichia coli and Pseudomonas aeruginosa, respectively, are of great interest to researchers due to their high affinity. These interactions can be studied using carbohydrate microarrays, which are also suitable platforms for detecting bacterial pathogens. In addition, carbohydrates have the potential to act as sensing molecules in microcantilever-based biosensors. The goal of this research was to design a carbohydrate microarray system to study the …
Fragments And Transcendence, David Hill
Fragments And Transcendence, David Hill
All Theses
The fragmented figure is a compelling image. To present the figure in fragments is to place the viewer in a position of recognizing their own mortality and fragility, eliciting an emotional response that goes beyond an aesthetic appreciation of the body as form. The Venus de Milo, arguably one of the most well recognized works of art in all of history illustrates this idea perfectly. There are plenty of complete sculptures of the goddess from the same period, but the armless Venus de Milo stands as the epitome of grace and beauty above the rest, and any attempts to restore …
Identification Of Patterns And Controls Of The Distribution Of Groundwater Discharge To Streams, Curtis Gebhard
Identification Of Patterns And Controls Of The Distribution Of Groundwater Discharge To Streams, Curtis Gebhard
All Theses
Groundwater discharge is a key component in understanding the interaction between groundwater and surface water. It provides baseflow to streams and can transport nutrients and contaminants to related aquatic ecosystems. It can also influence fish behaviour, spawning, migration and provide areas of refuge during summer and winter months. There are a variety of techniques that are used to characterize the magnitude of groundwater discharge including seepage meters, field permeameters, and piezometers and manometers, however the controls for the magnitude and distribution of discharge remain poorly understood. The purpose of this study was to conduct field investigations complimented with numerical analysis …
Development, Characterization, And Technical Applications Of An Atlantic Killifish Ahr-2 Specific Monoclonal Antibody (Mab 5b6), Josephine Wojdylo
Development, Characterization, And Technical Applications Of An Atlantic Killifish Ahr-2 Specific Monoclonal Antibody (Mab 5b6), Josephine Wojdylo
All Theses
The aryl hydrocarbon receptor (AhR) functions as a ligand-activated transcription factor normally found in the cytoplasmic compartment of cells held by chaperones and immunophilin-like proteins. Ligand binding dissociates the AhR/ligand from chaperone proteins, allowing translocation to the nucleus with subsequent transcription of a suite of responsive genes, most notably Phase I, II, and III drug metabolism genes. Select environmental contaminants such as co-planar PCBs, planar polyaromatic hydrocarbons (PAHs), and halogenated aromatic hydrocarbons (HAHs) are potent AhR agonists, with 2,3,7,8 -tetrachlorodibenzodioxin (TCDD) being one of the most potent. Adverse effects of exposure to these potent environmental AhR ligands include immune suppression, …
Use Of Sub-Saharan Vultures In Traditional Medicine And Conservation And Policy Issues For The African Grey Parrot (Psittacus Erithacus), Kristina Dunn
All Theses
ABSTRACT
Wildlife populations worldwide are being negatively affected by the illegal wildlife trade. The severity of the impact to both Sub-Saharan vultures and African Grey Parrot (Psittacus erithacus) (AGP) populations are explored in this thesis. Many species of Sub-Saharan vultures are used in the traditional medicinal trade. Previous studies have found that vultures have mystical powers attributed to them due to their keen
ability to find food. AGP's are sought after for international trade due to their ability to mimic human vocabularies and for their aesthetic beauty.
Due to the illegal, secret, and illusive nature of this trade, the monetary …
A Re-Examination Of Diplectrona Modesta Banks 1908 (Trichoptera: Hydropsychidae) Using Morphological And Molecular Techniques, Lauren Harvey
A Re-Examination Of Diplectrona Modesta Banks 1908 (Trichoptera: Hydropsychidae) Using Morphological And Molecular Techniques, Lauren Harvey
All Theses
Diplectrona modesta Banks 1908 (Trichoptera: Hydropsychidae) is a common inhabitant of streams across eastern North America. This species is well known and used often in biomonitoring studies. Experts in the field have long noted the morphological variation in larval head color and patterns as well as the species presence in many different types of habitats, such as springs, seeps, streams, and some small rivers. This study examines the species both morphologically and molecularly using mitochondrial and nuclear genes in order to determine if the species is a complex of several species or one highly variable species. DNA sequencing using the …
Isolation, Characterization And Application Of Bacteriophage To Treat Hydrogen Sulfide Producing Bacteria In Raw Animal Materials Destined For The Rendering Process, Chao Gong
All Theses
In the United States, billions of pounds of animal by-products are generated by the food processing industry every year. Hydrogen sulfide producing bacteria (SPB) can utilize the sulfur-containing proteins and amino acids in the raw animal materials destined for the rendering process to produce harmful hydrogen sulfide (H2S) gas rapidly under the ambient conditions, resulting in hazardous working environments and inferior quality of finished products. In this study, the application of bacteriophage was explored as an effective solution for the elimination of H2S production in the rendering industry. The objectives of this study were to: 1) isolate and characterize strains …
Analysis Of Alternative Manufacturing Processes For Lightweight Biw Designs, Using Analytical Hierarchy Process, Srinath Vijayakumar
Analysis Of Alternative Manufacturing Processes For Lightweight Biw Designs, Using Analytical Hierarchy Process, Srinath Vijayakumar
All Theses
The main objective of the analysis was to investigate the forming of Body in White (BIW) panels using alternative processes most suitable for replacing the conventional press working process in order to achieve a reduction in the total mass of the vehicle body structure. The selection of the alternatives was guided by multi criteria decision making tool, the Analytic Hierarchy Process (AHP). Here the alternatives were selected based on their relative importance to the different manufacturing attributes considered. The selected processes were applied to the manufacturing of different parts of BIW indicated in the BOM along with suggestion of the …
Pilot-Scale Constructed Wetland Treatment System For Ammonia Removal From Oil-Field Produced Water, Yun Song
Pilot-Scale Constructed Wetland Treatment System For Ammonia Removal From Oil-Field Produced Water, Yun Song
All Theses
This investigation examined the feasibility of using free-water surface constructed wetland systems (CWTSs) to decrease the ammonia concentration in oil-field produced water. The objective of this research was to design constructed wetland experiments to determine specific conditions that decrease aqueous ammonia concentrations in simulated oilfield produced water. The design of these experiments was based on biogeochemical pathways of nitrification and denitrification. The experiments included three scales: bench-scale, single-cell, and pilot-scale. Bench-scale reactors contained wetland plants (Typha latifolia) and hydrosoil in 5-gallon buckets. Single wetland cells were constructed by adding hydrosoil and plants (T. latifolia and Schoenoplectus californicus) to 70-gallon containers. …
Home Range, Habitat Selection, And Migratory Pathways Of Canada Geese Wintering At The Santee National Wildlife Refuge, Molly Giles
All Theses
Information on local and flyway-scale space use is lacking for the cohort of migrant geese (Branta canadensis interior) that winter in and adjacent to the Santee National Wildlife Refuge in Summerton, South Carolina. I examined home range and habitat selection of Canada geese in this region. I deployed transmitters on 17 geese (9 VHF and 8 PTT) on wintering grounds at Santee NWR during the winter of 2009-2010. Estimates of fixed kernel home range size ranged from 214.2 to 263.6 ha for VHF-marked geese and 1190.2 to 1915.6 ha for PTT-marked geese. Home ranges of all birds were compact and …
Design Tool Development For Cellular Structure Synthesis To Achieve Desired Properties, Luke Berglind
Design Tool Development For Cellular Structure Synthesis To Achieve Desired Properties, Luke Berglind
All Theses
The effective properties of cellular materials are dependent both on the fixed material properties of the constituent material and the geometry of the cellular structure. As a result, the effective properties can be altered through geometric modifications without changes to the constituent material. Cellular materials present new opportunities in mechanical design due to the ability to produce new materials with customized properties which can improve the performance of existing designs. However, the task of designing the geometry to achieve desired properties presents additional challenges to the design process.
To increase the viability of customizable cellular materials in new product design, …
Circuit Modules For Cmos High-Power Short Pulse Generators, Yongtao Geng
Circuit Modules For Cmos High-Power Short Pulse Generators, Yongtao Geng
All Theses
High-power short electrical pulses are important for high-performance functionality integration, such as the development of microelectromechanical/nanoelectromechanical systems (MEMS/NEMS), system on chip (SoC) and lab on chip (LoC). Many of these applications need high-power (low impedance load) short electrical pulses, in addition to CMOS digital intelligence. Therefore, it is of great interest to develop new circuit techniques to generate high-power high-voltage short electrical pulses on-chip.
Results on pulse forming line (PFL) based CMOS pulse generator studies are reported. Through simulations, the effects of PFL length, switch speed and switch resistance on the output pulses are clarified. CMOS pulse generators are modeled …
Experiencing Transition, Kara Renfro
Experiencing Transition, Kara Renfro
All Theses
ABSTRACT
My sculpture offers visual cues and displayed experiences for the viewer to reflect
upon past experiences and recognize the transitions that have occurred throughout their
lives because of those memories or adventures that become important due to their fragile and brief nature. These transitions from one place to another shed light on our past and unfold a journey that leads us through the inevitably constant changing circumstances of everyday life.
The artifacts and documents displayed throughout this body of work speak to the
human need to memorialize the past through collecting, documenting, and performing. It
is through observing this …
Evaluation Of Tetrachloroethene Dechlorination Under Low Ph Conditions In Microcosms And Enrichment Cultures, Michael Hickey
Evaluation Of Tetrachloroethene Dechlorination Under Low Ph Conditions In Microcosms And Enrichment Cultures, Michael Hickey
All Theses
Chlorinated ethenes are among the most prevalent groundwater contaminants found at hazardous waste sites throughout the United States. Two such sites are the Statesville FCX OU3 Superfund Site in North Carolina and the C-area at the Savannah River Site (SRS) in Aiken, SC. Both sites are contaminated with two of the more common chlorinated ethenes; tetrachloroethene (PCE) and trichloroethene (TCE). Anaerobic biological reductive dechlorination is an increasingly common treatment option. There are two main concerns as to the feasibility of this approach. The first is if the microbes are present that are needed for carrying out complete reductive dechlorination of …
Crime And Punishment: Insitutional Sanctions And Other Characteristics That Effect Campus Crime, Aldon Givens
Crime And Punishment: Insitutional Sanctions And Other Characteristics That Effect Campus Crime, Aldon Givens
All Theses
Crime, has and continues to be, a major issue in the world of institutions of higher education. Colleges and universities are constantly working on ways to prevent and improve crime on their respective campuses, which in most occasions includes collecting and reporting crime data to law enforcement agencies and the general public. By setting up punishment schemes and sanctions to deter criminal activity at their institution, administrators and faculty are looking for better, more efficient ways to influence the behavior or their students and steer them away from a life of criminal activity.
By studying existing literature, crime definitions, and …
Mass And Assembly Time Reduction For Future Generation Automotive Vehicles Based On Existing Vehicle Model, Essam Namouz
Mass And Assembly Time Reduction For Future Generation Automotive Vehicles Based On Existing Vehicle Model, Essam Namouz
All Theses
This research presents method for evaluating the lightweightedness of a vehicle and an approach for vehicle assembly time savings potential developed through a case study. The Lazy Part Identification method for mass reduction specifically addresses those components whose primary purpose is to aid in manufacturing and assembly rather than to provide end-user function. Seven specific laziness indicators are described and illustrated: rigid-to-rigid connection, support for a flexible, non-moving part, positioning feature, duplicate geometry, fastener, bridging system, and material flow restriction. These indicators are used to evaluate individual vehicle components as part of a proposed method for identifying mass reduction potential. …
Style And Electronic Communication: The Accommodation Of Scientific Risks In The Sierra Magazine, Erin Dalton
Style And Electronic Communication: The Accommodation Of Scientific Risks In The Sierra Magazine, Erin Dalton
All Theses
This thesis focuses on how style accommodates scientific risks for public audiences in Magazine articles. Language has previously been unexplored in risk communication; in accommodation research, style has not been investigated. Responding to these gaps in research, this study combines two unexplored dimensions--risk communication and accommodation--to show how syntax, diction, and metaphor resituate technical language and ideas in scientific risk studies for readers. First, interviews with editors and writers will provide a rich understanding of how their editing and composition practices influence accommodation processes. From there, an electronic communication analysis will illustrate how this medium can accommodate beyond text to …
The Geometric Field Of View And Speed Perception In A Driving Simulator, Richard Goodenough
The Geometric Field Of View And Speed Perception In A Driving Simulator, Richard Goodenough
All Theses
Particularly in the health and rehabilitation sector where cost and space are constraints, practitioners need smaller driving simulators. Because these small-footprint driving simulators have a limited projected field of view (PFOV) it is desirable to extend the virtual or geometric field of view (GFOV) beyond that natively afforded by the PFOV. Changing the PFOV/GFOV ratio has been shown to alter perceived speed. In order for driving simulation to produce realistic experiences, drivers‟ perception of speed should correspond with real world experiences. The purpose of the current research was to better understand the relationship between speed perception and the GFOV/PFOV ratio …
Femoral Loading Mechanics In Virginia Opossums (Didelphis Virginiana): Torsion And Mediolateral Bending In Mammalian Parasagittal Locomotion, William Gosnell
Femoral Loading Mechanics In Virginia Opossums (Didelphis Virginiana): Torsion And Mediolateral Bending In Mammalian Parasagittal Locomotion, William Gosnell
All Theses
Studies of limb bone loading in terrestrial mammals have typically found anteroposterior bending to be the primary loading regime, with torsion contributing minimally. However, previous studies have focused on large, cursorial eutherian species in which the limbs are held essentially upright. Recent in vivo strain data from the Virginia opossum Didelphis virginiana, a marsupial that uses a crouched rather than upright limb posture, have indicated that its femur experiences moderate torsion during locomotion as well as strong mediolateral bending. The elevated femoral torsion and strong mediolateral bending observed in opossums (compared to other mammals) might result from external forces such …