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.
Results
Showing 1 to 20 of 86 for “"Recharging"”.
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Design of an AUV recharging system
… removing the battery from the vehicle and recharging the battery. A different approach is proposed which uses an inductive coupler and power electronics to conduct a battery charge without opening the vehicle or removing the battery.
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Design of an AUV recharging system
The utility of present Autonomous Underwater Vehicles (AUVs) is limited by their on-board energy storage capability. Research indicates that rechargeable batteries will continue to be the AUV power source of choice for at least the near future. Thus, a need exists in both military and commercial …
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Recharging the facade : designing and constructing novel BIPV assemblies
Building Integrated Photovoltaics (BIPV) have been the subject of research and design applications for several decades. While some large-scale applications have been realized, prohibitively high costs and multiple technical complexities persist. A main cause of these challenges is a lack of …
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Optimizing network lifetime in sensor networks with limited recharging capabilities
… in ensuring reasonable network lifetimes. Recharging select nodes with Unmanned Aerial Vehicles (UAVs) provides a solution that currently can recharge a single node; however, questions arise on the effectiveness of a limited recharging system, the appropriate node to recharge, and the best …
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Implementing Sink Mobility and Recharging Policies Using an Unmanned Aerial Vehicle
… of an unmanned aerial vehicle (UAV) for wireless recharging of individual nodes in the WSN. My research focuses on understanding how to use wireless recharging technology to maximize the lifetime of a WSN by simulating recharging on the physical nodes. Using a three by three grid of nine sensor …
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Mechanical Energy Harvesting for Powering Distributed Sensors and Recharging Storage Systems
Vibration energy harvesting has been widely investigated by academia and industry in the past decade with focus on developing distributed power sources. One of the prime goals of energy harvesters is to provide power to wireless sensors allowing for the placement of these sensors in the remote and …
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Modelling land subsidence due to groundwater pumping/recharging in the Las Vegas valley
… head in the aquifer resulting from pumping and recharging of the Wells The settlement or swelling of the ground level at each node point is calculated based on hydraulic conditions. The computed hydraulic head and settlement resulted between January 1990 and December 1999 have been compared to …
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Design of an Autonomous Underwater Vehicle (AUV) charging system for underway, underwater recharging
… there exists a need to find a safer and faster recharging method that does not require recovery of the vehicle. This thesis addresses a fraction of the underwater AUV power transfer and rapid charging challenge through the development of the power electronics required to reliably charge a single …
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Persistent Monitoring with Energy-Limited Unmanned Aerial Vehicles Assisted by Mobile Recharging Stations
… along the way either by landing on stationary recharging stations or on Unmanned Ground Vehicles (UGVs) acting as mobile recharging stations. This leads to a new variant of the Traveling Salesperson Problem (TSP) with mobile recharging stations. We present an algorithm that finds not only the …
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Potential business models for recharging infrastructure and their implications for plug-In electric vehicle adoption
… purchase costs, limited driving range, and long recharging times. Construction of a ubiquitous network of high-power recharging stations has often been suggested as a solution to promote their adoption. Although many governments around the world are currently funding the construction of public …
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Solar Colletors Combined with Ground-Source Heat Pumps in Dwellings - Analyses of System Performance
… differ a lot. Solar heat can also be used for recharging of boreholes when neighbouring boreholes are thermally influencing each other. In order to analyze different systems with combinations of solar collectors and ground source heat pumps, computer simulations have been carried out with the …
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Personal Information Environment: A Framework for Managing Personal Files across a Set of Devices
… in a Personal Information Environment. Data recharging is a technique used to achieve a Personal Information Environment for an individual user using data replication. In this thesis, we propose a data recharging scheme for an individual user’s Personal Information Environment. We study the …
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Three papers on inverse optimization algorithms, PEV sales forecasting, and PEVs' potential impact on power systems
… to jointly forecast PEV sales and the diurnal recharging load curve in the U.S. between 2012 and 2020. A case study is conducted for the Midwest ISO region. Compared to the sales forecasts from the literature, our results turn out to be less optimistic. Our recharging load forecast results also …
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An Integrated Platform to Increase the Range/Endurance of Unmanned Helicopters
… landing/takeoff platform with refueling/recharging capabilities has not yet been developed to increase the endurance and decrease the cost for Class I helicopters.</p> <p>This dissertation presents a three-prong approach for increasing the range and endurance of Class I autonomous …
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An approach to improving the power management system in electronic devices
… Longer smartphone operation duration between recharging is currently being addressed with the introduction of low power circuit chips, low power displays and power management software. This thesis explores options that improve overall power management by looking at the power source and …
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Assessing the viability of level III electric vehicle rapid-charging stations
… 200-mile range battery electric sedan capable of recharging in 10 minutes. The recharging process for this vehicle requires a power source capable of delivering 350 kW; while this is possible in controlled laboratory environments, this thesis explores the viability of rapid-charging stations on …
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Design of control for efficiency of AUV power systems
… designed and built an internal combustion hybrid recharging system for the REMUS 600 Autonomous Underwater Vehicle (AUV) in collaboration with the MIT Lincoln Laboratory. This power system will recharge the lithium ion battery pack of the REMUS 600 and allow the vehicle to travel for 40 …
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Energy-Constrained UAV-UGV Cooperative Systems: A Bilevel Framework for Routing in Multi-Agent Teams
… cooperative routing. At the upper level, UAV recharging stops are determined using a minimum set cover formulation, guiding the UGV’s road-constrained routing, modeled as a Traveling Salesman Problem. At the lower level, UAV task allocation is solved using an Energy-Constrained Vehicle Routing …
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Operations manual for student-team-built hybrid power source to recharge an Unmanned Undersea Vehicle
… of students designed and built a gasoline-hybrid recharging system for a Remus 600 UUV to extend its operating time from three days to four weeks. To facilitate the understanding, operation, and copying of the unit by the project sponsor, MIT Lincoln Laboratory, a thorough inventory of components …
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Constraint Programming Approaches to Electric Vehicle and Robot Routing Problems
… a variety of unique challenges, including sparse recharging infrastructure, significant recharge durations, and limited battery capacities. The central thesis of this dissertation is that constraint programming (CP) can be an effective and flexible paradigm for modeling and solving routing …
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