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Analysis Of Speed-Related Crashes Using Event Data Recorder Data, Swathi Korpu
Analysis Of Speed-Related Crashes Using Event Data Recorder Data, Swathi Korpu
All Theses
Safety in general is defined as 'the absence of unintended harm to living creatures or inanimate objects' (Evans, 2004). Traffic safety is measured in terms of motor vehicle crashes. A crash is an unplanned event which results in either fatality, or injury or property damage. Of all the factors that contribute to a crash, speed is a major issue, as more than 31 percent of all fatal crashes involve speeding (NHTSA, 2007). The speed-safety relationship can be determined by knowing the effect of speed on the frequency and severity of crashes. The relationship between speed and frequency of crashes is …
Engineered Micro-Environments And Vibrational Culture Systems For Vocal Fold Tissue Engineering, Jaishankar Kutty
Engineered Micro-Environments And Vibrational Culture Systems For Vocal Fold Tissue Engineering, Jaishankar Kutty
All Dissertations
Voice is produced by the conversion of aerodynamic energy from exhalation to acoustical energy for voice production by the vocal folds (membranous connective tissue) located in the larynx. The quality of voice depends on the biomechanical properties of the multi-layered vocal fold tissue which derive from its extracellular matrix (ECM) organization and composition. The wound healing response to vocal fold injuries is characterized by scarring and subsequent dysphonia due to alterations in the biomechanical properties of the tissue.
The work presented here is motivated by the importance of voice in maintaining quality of life and the inability of current treatment …
The Spaceflight Environment And The Skeletal System, Eric Bandstra
The Spaceflight Environment And The Skeletal System, Eric Bandstra
All Dissertations
The spaceflight environment presents many challenges to the human body. Bone loss in astronauts is a well known consequence of reduced loading in the weightless environment of low-earth orbit. Recent studies have also indicated that spaceflight relevant types of radiation (at relatively high doses) have deleterious effects on trabecular bone. Both of these represent potential skeletal challenges during long-duration spaceflight. The objective of these studies is to examine the response of bone to models of the spaceflight environment.
Astronauts will likely absorb doses of protons and heavy ions during lengthy missions outside the Earth's magnetosphere. Following exposure to a range …
Comparison Of Effectiveness Of Roadway Design Treatments For Transitioning From Rural Areas To Urban Areas Using A Driving Simulator, Candice Hein
All Theses
Traffic fatalities are a leading cause of death in the United States. Rural roads are especially hazardous as they account for 60 percent of all traffic fatalities in the United States. Three main reasons for the rural road problems are high speeds, low volumes, and reduced driver awareness. This is particularly problematic where these roads navigate through communities requiring reduced speeds. Drivers who aren't alert and are driving too fast often miss the reduced speed warning signs and often don't slow until after they have entered the community. Therefore, engineers must do something to the design of the roadway environment …
An In Vitro Evaluation Of Dbm As A Tissue Engineered Scaffold, Stephanie Arnold
An In Vitro Evaluation Of Dbm As A Tissue Engineered Scaffold, Stephanie Arnold
All Theses
Over 500,000 bone graft procedures are performed each year in the United States. Bone grafting involves a surgical procedure to replace missing bone. Problems can arise with donor and defect sites during and after surgery, sometimes resulting in poor clinical results. The development and optimization of bone graft substitutes via a tissue engineering approach could markedly improve bone graft surgical outcome. Demineralized bone matrix (DBM), a bone graft material, is currently used in a clinical setting but has variable success rates.
The primary objective of the research presented in this thesis was to assess the cellular activity of D1 mouse …
Development Of Prediction Models To Measure Vendor Performance In Surveillance And Auditing Of Aircraft Maintenance, Nikhil Iyengar
Development Of Prediction Models To Measure Vendor Performance In Surveillance And Auditing Of Aircraft Maintenance, Nikhil Iyengar
All Dissertations
Elimination of aviation accidents is one of the primary goals of the Federal Aviation Administration (FAA) and the airline industry. A leading cause of aviation accidents is lack of oversight of various organizational issues, in particular, the organization's maintenance operation performance. The technologies used in the industry generate multiple risks, mostly from three domains: systems, hardware and people. Maintenance performance analyses identify the inherent risk in distributed, large-scale systems. Analysis of existing aviation maintenance data is a crucial step in meeting the aviation industry's need to improve aviation safety. Presently, we lack suitable tools to analyze large bodies of maintenance …
Influence Of Socio-Economic And Demographic Factors On Crashes In Rural South Carolina At Sub-County Level, Sunil Jakhadi
Influence Of Socio-Economic And Demographic Factors On Crashes In Rural South Carolina At Sub-County Level, Sunil Jakhadi
All Theses
State of South Carolina ranks high in the fatality rates. The state is a predominately a rural state with more percentage of rural roads. This research focuses on the statistical variation of crash rates between the county and block-group, especially rural once to the state. Also, it focuses on the possibility of various socio-economic and demographic characters influence on the high crash rates particularly in rural South Carolina.
Crash database for the year 2004 was acquired from South Carolina Department of Transportation and was processed by the research team at Clemson University. This processed database was imported into GIS. Spatial …
Effect Of South Caroline Belt Law On Safety Belt Use, Sourabh Patki
Effect Of South Caroline Belt Law On Safety Belt Use, Sourabh Patki
All Theses
A number of factors and accessories help save lives and prevent injuries to road users, yet safety belts have become synonymous with automobile safety today, unlike any accessory before or since their introduction in automobiles. However, the scientific advances in automobile safety, followed by the acceptance of the necessity for safety in automobiles by both the manufacturers and the population, finally leading to the introduction of safety features and their incorporation within the laws occurred over a much longer span, continuing even today. Today's Safety movement aims at increasing safety belt using an awareness campaigns, accompanied by enforcement. Safety belt …
Use Of Personas For User Interface Design: Results Of Field And Experimental Studies , Pallavi Dharwada
Use Of Personas For User Interface Design: Results Of Field And Experimental Studies , Pallavi Dharwada
All Dissertations
Persona is a fictitious user serving as a role model for designers, helping them make difficult decisions from the users' perspective during the interface design process. This concept, which was introduced by Alan Cooper in 1999, has been found to be a powerful tool for engaging the designers with the users. Although personas do not replace the rich data acquired through user testing, they enhance the interface development process by focusing the designers' attention on the target user until the interface qualifies for testing. Recognizing the benefits of persona, many companies, including the Fortune 500 have embraced this concept as …
Soccer Headgear Effects On Impact Profiles During A Heading Scenario, Ryan Posey
Soccer Headgear Effects On Impact Profiles During A Heading Scenario, Ryan Posey
All Theses
The risk of head injuries in the sport of soccer has recently become a topic of concern, particularly with youth players whom may suffer long-lasting or even permanent effects from a severe head injury. In response to these worries, headguards have been developed specifically for use in soccer. These headguards have been studied using crash test dummy heads mounted with various electronic instruments - accelerometers, gyroscopes, etc. The headgear-mounted dummy heads have been struck with various objects (soccer ball, another dummy head, pole, etc) to test for changes in head acceleration response.
Testing of soccer headgear has previously been limited …