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 10 of 10 for “"electric powered"”.
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Flight Testing Small, Electric Powered Unmanned Aerial Vehicles
… developed to find the drag polar for small UAVs powered by electric motors with fixed-pitch propellers. Wind tunnel testing was used to characterize the propeller-motor efficiency. The drag polar was constructed using data from flight tests. The proposed methods were implemented for a small UAV. …
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Implementation of mechanical, electrical, and feedback control systems in unmanned aerial vehicles
… aircraft were tested: a large and heavy gasoline powered aircraft and a smaller and much lighter electric powered sailplane. An autopilot was implemented into both platforms that would fly the aircraft and allow the measurement of flight vehicle characteristics. A link with the vehicle was created …
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Solar-electric and gas powered, long-endurance UAV sizing via geometric programming
… are used to analyze the feasible limits of solar-electric and gas powered, long-endurance aircraft in seconds to a level of detail and speed not previously achieved in initial aircraft sizing and design. The results show that long-endurance, gas powered aircraft are generally more robust to higher …
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Development of an obstacle detection and navigation system for autonomous powered wheelchairs
… of an after market system to convert an electric powered wheelchair into an autonomous wheelchair. The purpose of this research is to automatize powered wheelchairs for children who are impacted by conditions such as cerebral palsy. Maneuvering a powered wheelchair with a joystick is …
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Grasped Object Detection for Adaptive Control of a Prosthetic Hand
… options are commercially available, including electric powered prostheses. A review of surveys for upper limb prosthesis users have indicated improvement opportunities in the prosthesis design as well as improved functionality and controls. After review of literature, a PID sliding mode …
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Development and investigation of compressed air only and hybrid powering options
… resources are deployed to investigate electric and pneumatic vehicles in response to environmental, energy and consumer pressures. The goal of this thesis is to show conceptual development, analyze, performance assessment and comparative evaluation to further develop a pre-commercial …
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Analysis of Energy Savings and Feasibility of Retrofitting New York City Midrise Multifamily Buildings with Air Source Heat Pump Technology
… fossil fuel space and water heating systems with electric powered alternatives. In many cities, especially in the northeast, fossil fuel space and water heating systems are used in a vast majority of buildings and significantly contribute to citywide carbon emissions. In New York City (NYC), it is …
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Inheritance of Weevil Resistance in Maize
… at constant speed for 60 seconds in a small electric powered mill. The meal was weighed and sieved through 0.5 millimetre sieve to separate grit from the fine meal. The remaining grit was weighed and hardness was expressed as percent grit of the total meal. Data for percent grit was …
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Inheritance of Weevil Resistance in Maize
… at constant speed for 60 seconds in a small electric powered mill. The meal was weighed and sieved through 0.5 millimetre sieve to separate grit from the fine meal. The remaining grit was weighed and hardness was expressed as percent grit of the total meal. Data for percent grit was …
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Limitations to Use Copper as an Antimicrobial Control of Legionella in Potable Water Plumbing Systems
… growth especially with a magnesium anode. Electric powered anodes did not release metals or alter pH and thus did not diminish Cu antimicrobial capacity. Still, across the pilot-scale experiments, even very high levels of Cu (>1.2 mg/L) at low pH (<7) failed to fully eradicate culturable …