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Integrating Row Covers And Hydronic Heating For High Tunnel Season Extension Vegetable Production, Shawn Jadrnicek
Integrating Row Covers And Hydronic Heating For High Tunnel Season Extension Vegetable Production, Shawn Jadrnicek
All Theses
Combining bottom heating of soil with inexpensive fabric row covers improves yields and prevents cold damage with lettuce and arugula. Two experiments were conducted to determining an ideal heating tube placement and row cover thickness to allow growers to optimize heating systems. Temperature sensors in the first experiment were 30 cm from heating tubes with and without medium thickness (28 g m-2) row covers. A second experiment compared temperatures under medium and thick (62 g m-2) row covers when sensors were placed directly above the heating tubes. Hydronic heat alone increased average minimum nighttime temperature 0.4 C 30 cm from …
Nanoscale Solutions To Tailor Fiber Architectures For Realizing Composites With Triumvirate Properties, Vishnu Priya Ramineni
Nanoscale Solutions To Tailor Fiber Architectures For Realizing Composites With Triumvirate Properties, Vishnu Priya Ramineni
All Theses
The paramount need for the development of multifunctional, smart and adaptive material systems for application in industries like automobile, aeronautical and aerospace is undeniable. Polymer composites are fast becoming the primary material options to this demand in light of their superior mechanical properties, low density, high corrosion resistance and easy manufacturability. The design flexibility offered in terms of achieving higher specific properties and light weighting is the key reason behind their success. Among all the properties that composites possess, it is the stiffness, strength and toughness that most applications mandate. These properties however, provide complimentary and contrasting characteristics for composites …
Design Collaboration In Industry: When, Why, And How, Steven Thomas O'Shields
Design Collaboration In Industry: When, Why, And How, Steven Thomas O'Shields
All Theses
This research compares how practicing engineers and designers collaborate inindustry work on design projects as compared to how academic textbooks teach design.Information from design literature textbooks was compared with in-person and over-the-phone interviews from practicing engineers and designers in industry. A case study wasconducted through interviews, which allow for live interactions between the researcherand the interviewees to retrieve targeted information specific to the collaborative designresearch that may be more difficult to attain in written documents. A total of teninterviewees volunteered from three companies to participate in an interview related todesign projects, processes, tools, and meetings. Interviews were then deconstructed toquantify …
Development Of Stable Extractive Scintillating Materials For Quantification Of Radiostrontium In Aqueous Solutions, Ayman F. Seliman
Development Of Stable Extractive Scintillating Materials For Quantification Of Radiostrontium In Aqueous Solutions, Ayman F. Seliman
All Theses
Strontium-90 is a fission product, and it is produced with a yield of about 6%. Strontium-90 is a major radionuclide in spent nuclear fuel, high-level radioactive wastes resulting from the processing of spent nuclear fuel, and radioactive wastes associated with the operation of reactors and fuel reprocessing plants. In addition to the four stable isotopes naturally present in soil, 90Sr is present in surface soil around the world as a result of fallout from past atmospheric nuclear weapons tests. Strontium-90 is relatively mobile and can move down with percolating water to underlying layers of soil and into groundwater. The maximum …
Cerium Doped Glasses: Search For A New Scintillator, Matthew William Kielty
Cerium Doped Glasses: Search For A New Scintillator, Matthew William Kielty
All Theses
Single crystals have been the standard material when it comes to scintillators, but with the ability to easily be produced at a considerably lower cost and fabricated into tailored sizes and shapes there is increasing interest in the development of glass scintillators as an alternative. Ce-doped borosilicate and phosphate glasses were investigated focusing on the effect of different modifiers on their optical properties and luminescence. The borosilicate glasses were prepared aiming at the detection of thermal neutrons, utilizing B-10, while the phosphate glasses were targeting the detection of gamma-rays taking advantage of high Z elements such as, Ba, Bi, Ta, …
Drawing Conclusions: The Use Of Room-By-Room Probate Inventories To Study The Terminology, Evolution, And Function Of Charleston Drawing Rooms And Parlors 1728-1866, Michelle Marie Thompson
Drawing Conclusions: The Use Of Room-By-Room Probate Inventories To Study The Terminology, Evolution, And Function Of Charleston Drawing Rooms And Parlors 1728-1866, Michelle Marie Thompson
All Theses
This thesis examines the contents of seventy-five entertaining rooms called eitherparlor or drawing room in a sample of fifty room-by-room probate inventories recordedin Charleston, South Carolina between 1728 and 1866. Analysis of these inventoriesrevealed that the usage of the term parlor declined in favor of the term drawing room inthe late eighteenth century until the former appears to have supplanted the term parlorabout 1810. Analysis of this sample of inventories also revealed that the furnishingsCharlestonians acquired to appoint their principal entertainment rooms shifted as thesocial activities staged in them changed. Eighteenth-century parlors tended to be multi-functional, sometimes containing beds and …
Suture Training Device With Computer Vision Based Information Acquisition, Anand Jagannathan
Suture Training Device With Computer Vision Based Information Acquisition, Anand Jagannathan
All Theses
Growth in surgical technology has given rise to numerous innovative methods to perform surgery and every surgery involves certain skills that have different learning curve. Due to significant growth in medical problems that involves surgery, there is a greater demand for good surgeons. Therefore there is a need to train aspiring surgeons into becoming an expert. Surgical training has undergone a drastic change in recent years with the advent of simulation based training, which allows novice surgeons to train and acquire essential surgical skills before performing an actual surgery. With the goal of objectively evaluating the level of expertise of …
A Semi-Analytical Unit Cell Synthesis Method For Design Of Meta-Materials With Targeted Nonlinear Deformation Response, Shanyun Gao
All Theses
A Unit Cell Synthesis Method was developed recently for designing meta-materials from unit cell level to achieve prescribed nonlinear deformation response. The method starts with a process of selecting and combining a set of elemental functional geometries (EFG) and elemental structural geometries (ESG) to form the unit cell structure. A subsequent size optimization is performed to obtain an optimal design which provides the targeted nonlinear deformation behavior. While the method is proven effective in producing feasible meta-material designs, the design and optimization of the unit cells relies heavily on nonlinear finite element analysis, which makes the overall process computationally intensive …
Development Of A Tissue-Mimicking Brain Phantom For Neurosurgical Pre-Operative Planning And Training, Miriam Navarro Lozoya
Development Of A Tissue-Mimicking Brain Phantom For Neurosurgical Pre-Operative Planning And Training, Miriam Navarro Lozoya
All Theses
Direct physical intervention in the treatment of patients in the area of neurosurgery represents a high risk which can be minimized with the employment of 3D physical models. These models provide a thorough physical display in 3D with detailed information related to the morphology of internal structures and their spatial location with surrounding structures. The aim of this study was to develop a brain substitute material based on gelatin that simulates the mechanical properties of brain tissue. Tissue mimicking materials were developed by matching the mechanical properties of porcine brain tissue under compressive loading at strain rates typical of surgical …
Uniform Micro-Patterning Of An Arbitrary Surface, Viraj Rajendra Kulkarni
Uniform Micro-Patterning Of An Arbitrary Surface, Viraj Rajendra Kulkarni
All Theses
According to the literature, creating specific micro-level patterns on some surfaces can significantly reduce friction. To this effect, a method is presented to create a regular pattern of micro-level indentations on any irregular surface. Creating a uniform pattern on a regular surface is possible using commercial CAD software, where regular surface is the surface obtained by extrusion or revolution of a 2D sketch along any curve. But, it is complicated and often incorrect for irregular surfaces. The thesis presents the approach followed to create parameterized regular patterns on arbitrary surfaces. Three different algorithms are presented, each achieving a progressively increased …
Sensor Based Nitrogen Management For Corn Production In Coastal Plain Soils, Nicholas G. Rogers
Sensor Based Nitrogen Management For Corn Production In Coastal Plain Soils, Nicholas G. Rogers
All Theses
The first objective of this project was to develop, refine, and employ sensor-based algorithms to determine the mid-season nitrogen requirements for the production of irrigated corn in Coastal Plain soils. The second objective of this project was to develop an “on-the-go†variable rate nitrogen application system. One (1) production field at Clemson’s Edisto Research and Education Center in Blackville, SC was used in the development and refinement of the sensor-based algorithm. This field was equipped with overhead irrigation, and was used in both the 2015 and 2016 growing seasons. The crop was not under scheduled irrigation, the overhead (lateral) irrigation …
Solastalgia, Deighton Abrams
Solastalgia, Deighton Abrams
All Theses
My work explores the empathic connections between humans and the physical landscape and investigates the phenomenon of psychological distress associated withclimate change. I use memories of my itinerant shifts between landscapes to createabstracted ceramic sculptures; for these I reference mountain and glacial forms, anextension of my own experience growing up in Alaska. Ceramics is a medium whichreadily records the hand of the maker while making forms permanent through the firingprocess. I use this aspect of the material to freeze moments in time where the clay splitsand cracks, implying a slow collapse. This reflection of time’s effect on materials elicitscorrelations between …
Quantification Of Volatile Residuals In Polydioxanone By Gas Chromatography: Method Development, Validation And Implementation, Clayton Joseph Culbreath
Quantification Of Volatile Residuals In Polydioxanone By Gas Chromatography: Method Development, Validation And Implementation, Clayton Joseph Culbreath
All Theses
Bioresorbable polymers are increasingly utilized for implantable medical devices to avoid complications related to explant and/or long term responses to foreign materials. As with all polymeric materials, residual levels of unreacted monomer, and other volatiles, drastically affect the mechanical and chemical properties as well as the parameters required to process the material into a device. The 1,4-dioxane-2-one (PDO) monomer is a six membered ring that forms an ether-ester polymer via ring-opening polymerization (ROP) with intermediate absorption rate properties that are ideal for numerous implant situations. Developing devices using poly(1,4-dioxane-2-one) (PPDO, PDO, PDX, PPDX, or PDS) is complicated by residual levels …
An Analysis Of Bluetooth Low Energy In The Context Of Intermittently Powered Devices, Steven Lain Hearndon
An Analysis Of Bluetooth Low Energy In The Context Of Intermittently Powered Devices, Steven Lain Hearndon
All Theses
Bluetooth Low Energy (BLE) has become a prominent low-power wireless solution for portable, battery-powered devices, potentially allowing them to run for several years, even off of a simple coin cell. But batteries must still be replaced. The emergence of batteryless devices is gaining momentum due to their ability to run for decades with no maintenance. The design of BLE relies on exact timing, which usually means a constant power source. The question, then, is how well will BLE function when used in batteryless sensors that run on harvested energy and therefore lose power frequently. In this paper, I evaluate the …
Laboratory Evaluation Of The Influence Of Aggregate Los Angeles (La) Abrasion On Performance Of Open Graded Friction Course (Ogfc) Mixtures, Thomas Stephen Repik
Laboratory Evaluation Of The Influence Of Aggregate Los Angeles (La) Abrasion On Performance Of Open Graded Friction Course (Ogfc) Mixtures, Thomas Stephen Repik
All Theses
Understanding how the aggregate structure changes during mixing andcompacting are critical for the performance of open graded asphalt designs. Open gradedfriction course (OGFC) consists of approximately 94% aggregate and if breakdownoccurs, the desired properties of the finished product will vary. The purpose of this studywas to investigate the influence of the Los Angeles (LA) abrasion value of the aggregateon the performance of open graded friction course mixtures. Aggregate from nine different sources in South Carolina, with LA abrasion valuesranging from low-20s to mid-50s, were used to create a 12.5mm nominal maximumaggregate size (NMAS) open graded design. Specimens, both with and …
Immunomodulatory Effects Of Human Adipose Derived Stem Cells On Human Macrophages In Diabetic Environment, Maria Margarita Portilla
Immunomodulatory Effects Of Human Adipose Derived Stem Cells On Human Macrophages In Diabetic Environment, Maria Margarita Portilla
All Theses
Background: Cardiovascular Disease (CVD) is the number 1 leading cause of death in the nation, even globally [1]. By 2030, the American Heart Association projects that 43.9% of the US population will have some form of CVD [2], with more than one-half of mortality seen in the diabetic community [3]. Diabetic patients face increased inflammation, leading to vascular complications; consequently, these patients may need small-caliber grafts. Although the gold standard is represented by autologous blood vessels, these might be affected by diabetes as well. Vascular tissue engineered grafts with the addition of autologous adipose tissue-derived stem cells may be a …
The Coronary Circulation In An In Vitro Multi-Scale Model Of The Stage 1 Norwood Procedure, Lauren Elizabeth Carter
The Coronary Circulation In An In Vitro Multi-Scale Model Of The Stage 1 Norwood Procedure, Lauren Elizabeth Carter
All Theses
Hypoplastic Left Heart Syndrome (HLHS) is a congenital heart disease where the left ventricle and ascending aorta are underdeveloped. The first of three palliative surgeries for this malformation is the Norwood procedure. In this surgery, an opening is made between the left and right atrium so that all blood can flow into the right ventricle (RV). A reconstructed aorta is anastomosed (connected) to the RV so that the RV can pump oxygenated blood to the body (the systemic circulation). To divert part of the systemic blood flow to the pulmonary circulation, the modified Blalock-Taussig Shunt (mBTS) is connected from the …
Soil Organic Carbon Distribution With Depth: Implications For Ecosystem Services, Rebecca Drayton Chandler
Soil Organic Carbon Distribution With Depth: Implications For Ecosystem Services, Rebecca Drayton Chandler
All Theses
Most current frameworks of ecosystem services represent soil organic carbon (SOC) as a bulk/composited stock without differentiating SOC ecosystem services in the top and subsoil. This study evaluated SOC, nitrogen (N), and C/N distribution with depth in glaciated soils at the Cornell University Willsboro Research Farm in upstate New York. Soil organic carbon, N, and C/N decreased with depth in all soils sampled. The vertical distribution of SOC was examined quantitatively by soil order, soil depth class (top soil versus subsoil), and other environmentally-relevant soil and landscape variables. Top soils (A horizon) contained more variable SOC concentrations compared with the …
Human Factors Considerations In Designing Home-Based Video Telemedicine Systems For The Geriatric Population, Shraddhaa Narasimha
Human Factors Considerations In Designing Home-Based Video Telemedicine Systems For The Geriatric Population, Shraddhaa Narasimha
All Theses
Telemedicine is the process of providing healthcare services when large distances separate the patient and the doctor, with the use of communication technology. Telemedicine serves as a substitute to in-person hospital visits and in large, reduces the need to travel and wait in line to visit the doctor. It is predicted to help the geriatric population in managing their healthcare requirements. In order for telemedicine to effectively help the older population, it is essential to understand their needs and issues in telemedicine systems. A study with 40 participants was conducted to understand the usability issues of telemedicine systems with the …
The Moderating Effects Of Savoring Positive Life Experiences On The Relationship Between Combat Exposure And Mental Health Symptoms, Anton I. Sytine
The Moderating Effects Of Savoring Positive Life Experiences On The Relationship Between Combat Exposure And Mental Health Symptoms, Anton I. Sytine
All Theses
Engaging in firefights or witnessing death and other types of combat experiencesare occupational hazards associated with combat exposure facing military personnel. Thepresent study examined whether savoring beliefs moderate the relationship betweencombat exposure and negative mental health symptoms among U.S. Army soldiersdeployed to Operation Iraqi Freedom (OIF) and Operation Enduring Freedom (OEF).Soldiers (N = 885) deployed on at least one combat operation completed a measure ofcombat exposure, savoring beliefs, depression and PTSD at two time periods separatedby five months. Correlational and multiple regression analyses were conducted to assessthe relationship between variables and for the moderating effect of savoring. Savoringwas found to …
Seasonal Habitat Use And Activity Of Bats In Relation To Prescribed Fire And Environmental Conditions, Leanne Katherine Leala Burns
Seasonal Habitat Use And Activity Of Bats In Relation To Prescribed Fire And Environmental Conditions, Leanne Katherine Leala Burns
All Theses
North American bats are becoming increasingly threatened due to stressors such as wind energy development and the emerging infectious disease white-nose syndrome. A better understanding of the seasonal behavior and habitat associations of temperate bat species can inform conservation strategies in the face of current threats, aiding effective management of remaining populations. To this end, we used acoustic bat detectors to examine summer occupancy and winter activity of bats in Big South Fork National River and Recreation Area on the Cumberland Plateau. Our specific objectives were 1) investigate the effects of post-fire landscape conditions on the summer occurrence of commuting …
Fabricating Suspended Carbon Structures Using Su-8 Photolithography, Emanuele Giogli
Fabricating Suspended Carbon Structures Using Su-8 Photolithography, Emanuele Giogli
All Theses
The phenomenon of T-topping has been deemed as an imperfection of the SU-8 photolithography process, due to light diffraction, overexposure of the SU-8, and other process parameters. The first objective of this work is to demonstrate that T-topping can be used as a microfabrication resource to produce suspended structures between photo-patterned high aspect ratio SU-8 posts, as precursors for carbon wires (width>1µm) and bridges (width>1µm). Such carbon structures could be used in a number of applications, such as the fabrication of nanowire based biosensors for the medical and food industry. The second objective is to develop a model …
Mapping Natural Gestural Inputs To Traditional Touchscreen Interface Designs, Katherina Jurewicz
Mapping Natural Gestural Inputs To Traditional Touchscreen Interface Designs, Katherina Jurewicz
All Theses
Gestures are a natural means of every day human-human communication, andwith the introduction of gestural input technology, there is an opportunity to investigatethe application of gestures as a means of communicating with computers and otherdevices. The primary benefit of gestural input technology is that it facilitates a touchlessinteraction, so the ideal market demand for this technology is an environment wheretouch needs to be minimized. The perfect example of an environment that discouragestouch are sterile environments, such as operating rooms. Healthcare-associated infectionsare a great burden to the healthcare system, and gestural input technology can decreasethe number of surfaces, computers, and other …
Uptake Of Actinides And Nuclear Fission Products In Graminaceous And Nongraminaceous Plants, Stephanie Lynn Ely
Uptake Of Actinides And Nuclear Fission Products In Graminaceous And Nongraminaceous Plants, Stephanie Lynn Ely
All Theses
Radionuclides exist within the environment naturally and also from release during nuclear power and weapons production. The ability of plants to uptake radionuclides may prove beneficial for exploitation in the field of phytoremediation and as a biomonitor within the field of nuclear forensics. The fact that plants have the ability to take up radionuclides as an unintended metabolic process is well known, however, the mechanisms through which uptake occur present large gaps within the current research. Therefore, gaining further knowledge regarding overall plant radionuclide uptake and specific mechanisms may prove as an invaluable tool to enhance phytoremediation and nuclear forensic …
Remembering Meriwether: White Carolinian Manipulation Of The Memory Of The Hamburg Massacre Of 1876, Jenny Heckel
Remembering Meriwether: White Carolinian Manipulation Of The Memory Of The Hamburg Massacre Of 1876, Jenny Heckel
All Theses
This thesis examines the manipulation of the memory of the Hamburg Massacre of 1876. During the massacre, one white Carolinian and six black Carolinians were killed. Forty years later, in 1916, a monument was erected in North Augusta, South Carolina to honor and remember Mckie Meriwether, who was described as the only person killed during the massacre. The monument does not mention the true horrific history of the white terrorism against black Carolinians. After white Carolinians reclaimed power in the state, they were able to alter the memory of the Hamburg Massacre from a horrific to heroic event. By utilizing …
Boundary Controllability For One-Dimensional Wave And Heat Equations With Potential, Andrew Walton Green
Boundary Controllability For One-Dimensional Wave And Heat Equations With Potential, Andrew Walton Green
All Theses
In this thesis we investigate the boundary controllability of the wave and heat equa-tions with bounded potential in one dimension. This is done by way of the observability inequality. For the wave equation, we use the Hilbert Uniqueness Method of J. L. Lions to show the observability inequality is sufficient for exact controllability. Observability is shown by the multiplier method when there is no potential and a special Exchange of Vari-ables technique for when potential is present. Due to limitiations of this method we also use a Carleman Estimate which can be extended to higher dimensions. For the heat equation, …
Estimation Of Annual Average Daily Traffic (Aadt) And Missing Hourly Volume Using Artificial Intelligence, Sababa Islam
Estimation Of Annual Average Daily Traffic (Aadt) And Missing Hourly Volume Using Artificial Intelligence, Sababa Islam
All Theses
Annual Average Daily Traffic (AADT) is one of the most important traffic parameters used in transportation engineering analysis. Moreover, each state Department of Transportation (DOT) must report the AADT data to Federal Highway Administration (FHWA) annually as part of the Highway Performance Monitoring System (HPMS) requirements. For this reason, state DOTs continually collect AADT data via permanent count stations and short-term counts. In South Carolina, only interstates and primary routes are equipped with permanent count stations. For the majority of the secondary routes, AADT data are estimated based on short-term counts or are simply guesstimated based on their functional classifications. …
Comparing Multiple Methods Of Eye Tracking For Packaging, David Bradford Cottrell
Comparing Multiple Methods Of Eye Tracking For Packaging, David Bradford Cottrell
All Theses
The technology to understand consumer behavior through eye tracking is becoming more affordable and accessible. When eye tracking is applied within a retail environment, packaging can be evaluated based on the amount of attention obtained. For companies developing products or designing packages, the results of eye tracking could help estimate the likelihood a package will be selected over competitors, what design attributes attract the most attention or how shelf placement impacts sales. Using a physical retail environment with tangible stimuli allows participants to be fully immersed and follow normal shopping behaviors. However, many eye tracking studies are conducted in a …
Let's Be Fair Here: The Influence Of Leadership On Interpersonal Justice Climate In A Healthcare Context, Nastassia Savage
Let's Be Fair Here: The Influence Of Leadership On Interpersonal Justice Climate In A Healthcare Context, Nastassia Savage
All Theses
Although performance is a major interest in most organizations, it has more salient implications in the healthcare industry, in which changes in performance can have a significant effect on patient care. As such, it is important to determine what factors may result in performance increments or decrements. This study focused on how interpersonal justice climate may have an effect and how leaders influence its level. Specifically, it assessed how leaders impact the interpersonal justice climate of their unit by accounting for their political skill and the similarities in leader-member exchange relationships within clinical healthcare units. Additionally, the effect of interpersonal …
Neighborhood Environment And Self-Rated Health In Mainland China, Japan And South Korea, Jing Liu
Neighborhood Environment And Self-Rated Health In Mainland China, Japan And South Korea, Jing Liu
All Theses
Neighborhood environments are considered crucial factors in affecting self-ratedhealth. Previous empirical research has documented a positive association between self ratings of neighborhood environments and health status. Although this relationship has been studied extensively in western countries, the relationship between neighborhoodratings and health status in East Asian countries has received far less attention by researchers. Using data from the East Asian Social Survey 2010, this thesis examines the relationship between self-rated health and the three main types of neighborhood environment (built, physical, and social) in Mainland China, Japan, and South Korea. This study also compares the neighborhood effects on self-rated health …