Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 23 for “"Research and Engineering"”.
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Inference and Task Planning over Spatially Complex Problems
… (LfD) framework allowing a robot to learn and execute tasklevel plans in spatially complex environments. To achieve this goal, we introduce a propositional logic framework to encode spatial relationships between objects and an inference scheme to identify important relationships between …
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An analysis of foot-ankle-leg fractures sustained by Warfighters and PMHS in the under-body blast environment
Warfighters in Operations Iraqi and Enduring Freedom (OIF and OEF) were frequently exposed to improvised explosive devices (IEDs). These munitions present a substantial risk to both mounted and dismounted Warfighters. This thesis created a military specific case review system based on the …
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Demonstrating the feasibility of polyethylene passive samplers for quantitative assessment of volatile organic compounds in soil
A quantitative assessment of the nature and extent of volatile organic compounds (VOCs) in soil vapors is a valuable tool, as these chemicals are pervasive and a health concern at many contaminated sites. Motivated by the successful use of polyethylene (PE) passive samplers in sediments, this …
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Non-Destructive Bridge Deck Condition Assessment with a Probability-Based Deterioration Threshold
… types, e.g., cracking, delamination and reinforcing steel corrosion, have emerged. These techniques generate large amounts of data representing different underlying physics, (decibels for ground penetrating radar and volts for half-cell potential), making data interpretation and …
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DEVELOPMENT OF SIMILARITY SCORING TECHNIQUES FOR MOTOR VEHICLE CRASH COMPARISONS
Motor vehicle crashes result in thousands of deaths and millions of injuries each year in the United States (US). To help prevent these injuries and deaths, the National Highway Traffic Safety Administration (NHTSA) and the Insurance Institute for Highway Safety (IIHS) conduct crash tests, which …
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New methods for sensitivity analysis of chaotic dynamical systems
… analysis are invaluable tools for fluid dynamics research and engineering design. These methods are used in many applications, including aerodynamic shape optimization and adaptive grid refinement. However, traditional sensitivity analysis methods break down when applied to long-time averaged …
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Adaptive Numerical Methods for Large Scale Simulations and Data Assimilation
Numerical simulation is necessary to understand natural phenomena, make assessments and predictions in various research and engineering fields, develop new technologies, etc. New algorithms are needed to take advantage of the increasing computational resources and utilize the emerging hardware and …
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Distributed virtual environment scalability and security
… environments (DVEs) have been an active area of research and engineering for more than 20 years. The most widely deployed DVEs are network games such as Quake, Halo, and World of Warcraft (WoW), with millions of users and billions of dollars in annual revenue. Deployed DVEs remain expensive …
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Development of a Comparison Technique Between Crash Tests and Real-World Crashes
The first objective of this research was to create a repeatable method for finding similar crash tests to compare to real world crashes using the Crash Injury Research and Engineering Network (CIREN) database and common crash test databases. Each of the Toyota-Wake Forest University CIREN cases …
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Design, Development, Characterization, and Application of the DRI Model 2015 Multiwavelength Carbon Analyzer
… light source (405, 445, 532, 635, 780, 808, and 980 nm) was developed to analyze chemical and optical properties of carbonaceous particles collected on quartz-fiber filters. Built upon on the DRI Model 2001 carbon analyzer at 633 nm, major modifications were made to mechanical and electrical …
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Synthesis Of Graphene Nanomaterials And Their Application In Electrochemical Energy Storage
<p>The need to store and use energy on diverse scales in a modern technological society necessitates the design of large and small energy systems, among which electrical energy storage systems such as batteries and capacitors have attracted much interest in the past several decades. …
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Development of a Mechanistic Model for Geogrid Reinforced Flexible Pavements
… of geogrid base reinforced flexible pavements and to investigate the response benefit of geogrid-reinforcement. This is an axisymmetric finite element structural model that considers the nonlinear, stress dependent pavement foundation geomaterials, i.e., unbound base aggregates and fine grained …
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Application of product family research and development metrics in a power systems manufacturing environment
… of innovation, one cannot ensure whether the research and development expenses serve the right benefit. In order to be successful in generating revenue it is imperative for research and development functions to assume a broader view in developing technology for new products. Planning for the …
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Polymer Grafted Nanoparticles as Functional and Mechanically Robust Single-Component Composites
… on the ease of processing, low density, and low cost of plastics while incorporating specific filler materials that enhance mechanical properties or add functionality. Synthesizing polymer matrix composites with a high content of particulate additives can maximize the particular …
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Injury Mechanisms, Tissue Properties, and Response of the Post-Mortem Human Abdomen in Frontal Impact
… (MVCs) are a leading cause of injuries and injury-related fatalities in the United States. The National Highway Traffic Safety Administration (NHTSA) reported over 21,250 vehicle occupant fatalities in 2011, with 1,240,000 injuries sustained by passenger car occupants alone. MVCs are a …
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Scalable and extensible infrastructures for distributing interoperable Geographic Information Services on the Internet
… falls short of accommodating the requirements and needs of the Internet environment. A more flexible GIS model is required to support the growing need for sharing increasingly available yet distributed geographic data, and for facilitating the integration of GIS with other information systems. …
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IP-based virtual private networks and proportional quality of service differentiation
… potential of delivering cost-effective, secure, and private network-like services. Having surveyed current enabling techniques, an overall picture of IP VPN implementations is presented. In order to provision the equivalent quality of service (QoS) of legacy connection-oriented layer 2 VPNs …
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A Model for Regional Technology-Based Economic Development
… sought-after objective for regions in developed and developing countries alike. The wealth created by regional knowledgebased economies like Silicon Valley is an attractive outcome. Without understanding clusterbased economic strategy, the different types of technology-based economic development …
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Engineering Mechanocaloric Effects and Tunable Thermal Conductivity in Amorphous Elastic Polymer Fibers
… clean technologies for active heating/cooling and passive thermal regulation are in high demand for applications spanning different scales, from city planning and building heating/cooling to wearable and portable devices to miniature electronics. To advance relevant technologies and …
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A scalable analysis framework for large-scale RDF data
… the corpora of this web to a terabyte-scale, and challenges modern knowledge storage and discovery techniques. Research and engineering on RDF data management systems is a very active area with many standalone systems being introduced. However, as the size of RDF data increases, such …
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