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 341 for “"Power and Energy"”.
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Software systems for power and energy conservation
… of transistors in accordance with Moore's law and the failure of Dennard scaling has resulted in power becoming a critical factor in all facets of microprocessor design. To counter the Power Wall, techniques such as voltage and frequency scaling, heterogeneous hardware and voltage underscaling …
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Low-power and energy-efficient wireline receivers
… edge devices to cloud computing, requires low-power and energy-efficient wireline data communication. This dissertation proposes innovative ways to accomplish such communication focusing on the receiver side. The first half of the dissertation discusses improving the power efficiency of the …
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Preliminary Shipboard Layout of Navy Integrated Power and Energy Corridor (NiPEC)
… fully electric ship. Through its integrated power system, the prime movers provide electric power to meet propulsion, ship service, offensive, and defensive systems requirements. The next generation destroyer, DDG(X) is also planned to be an electric ship. The ships of the future can thus be …
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Manufacturability Assessment of the Navy Integrated Power and Energy Corridor (NiPEC)
The growing electrical demands of sophisticated naval vessels necessitate the development of advanced power distribution methods. With the U.S. Navy’s shift towards fully electric ships, exemplified by the Zumwalt class destroyer and the forthcoming DDG(X), the demand for electrical power on future …
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Power and energy management of modern architectures in adaptive HPC runtime systems
Power and energy efficiency are important challenges for the High Performance Computing (HPC) community. Excessive power consumption is a main limitation for further scaling of HPC systems, and researchers believe that current technology trends will not provide Exascale performance within a …
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Characterizing Naval Ship Systems Power and Energy Metrics through Modeling and Analysis
… introduces a framework for analyzing shipboard power and energy systems as a repeatable process to differentiate between preferred solutions within a design tradespace. The Naval design community needs a consistent method for evaluating non-functional requirements, called “ilities,” in the early …
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Determining application-specific peak power and energy requirements for ultra-low-power processors
… such as IoT, wearables, implantables, and sensor networks are power- and energy-constrained. These applications rely on ultra-low-power processors that have rapidly become the most abundant type of processor manufactured today. In the ultra-low-power embedded systems used by these …
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Design and Modeling of the Navy Integrated Power and Energy Corridor Cooling System
… Grant Program is developing the Navy Integrated Power and Energy Corridor (NiPEC) to underpin the vessel’s power distribution system. The corridor comprises several modular compartments capable of operating independently or as part of a network to execute energy storage, conversion, protection, …
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Design and Modeling of Shipwide Navy Integrated Power and Energy Corridor Cooling System
… ship systems are increasingly requiring more and more electricity to power the myriad advanced offensive and defensive electrically-powered systems. The Zumwalt class destroyer was the Navy’s first fully electric ship. The next generation destroyer, DDG(X), is also planned to be an electric …
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Improving lithium-ion battery power and energy densities using novel cathode architectures and materials
Lithium-ion batteries are commonly used as energy storage devices in a variety of applications. The cathode architectures and materials have a large influence on the performance of lithium-ion batteries, namely power and energy densities. Three-dimensional bicontinuous cathode structures should …
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Designing materials for energy storage with high power and energy density : LiFePO₄ cathode material
… rechargeable batteries because its structural and thermal stability, its inexpensive cost, and environmental friendliness meet the requirements of power sources for electric vehicles, except high power capability. Strategies to increase the rather sluggish rate performance of bulk LiFePO₄ have …
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Design of Securing Mechanism for Power Converter in Navy Integrated Power and Energy Corridor
… is the increase in electrical generation and demand. The second challenge is that the loads will be more dynamic with more complex load profiles (e.g., pulses for energy weapons). A next-generation electrical system, Power Electronic Power Distribution System (PEPDS), is being developed to …
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Power and energy storage requirements for ship integration of solid-state lasers on naval platforms
The United States Navy's interest in high-energy lasers (HELs) dictates the need for further study into the propagation of laser light through different atmospheric conditions. Due to the amount of energy required to power these laser weapons systems and the limited amount of available energy …
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Design, Analysis and Modeling of a Modular Navy Integrated Power and Energy Corridor Cooling System
In response to the escalating demand for electricity onboard future naval vessels, the Design Laboratory of the Massachusetts Institute of Technology (MIT) Sea Grant Program, as part of a U.S. Navy research consortium for next-generation all-electric warships, is pioneering the development of the …
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Power and Energy Transduction In Piezoelectric Wafer Active Sensors For Structural Health Monitoring: Modeling and Applications
… of this research is to develop the scientific and engineering basis for piezoelectric wafer active sensors (PWAS) in structural health monitoring (SHM). PWAS are studied in both theoretical and practical aspects. The research focuses on three areas: (I) modeling of PWAS power and energy …
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Design and model: Intelligent solid-state current limiter to prevent sympathetic tripping problem on power and energy applications
… paper analyzes the Sympathetic Tripping Problem and proposes and tests a solution to it. To do so, it considers a case study, develops a model to explain this case study, and uses this model to test X. The results reveal that transferring power near the system voltage stability limit is a major …
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Power and energy : geopolitical aspects of the transnational natural gas pipelines from the Caspian Sea basin to Europe
… of the Caspian Sea basin natural gas resources and the transportation routes among four world powers--Russia, the European Union, the United States, and China. The author assesses the risks posed by instability in the Caspian Sea states to the realization of proposed natural gas pipeline …
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Innovative Model based on the Irradiance-Temperature Fitting of Equivalent Circuit Parameters for Commercial Photovoltaic Modules towards Accurate Power and Energy Prediction
L'abstract è presente nell'allegato / the abstract is in the attachment
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Comparison of Various Pipelined and Non-Pipelined SCl 8051 ALUs
… two versions: SCL 8051 ALU with <em>nsleep</em> and <em>sleep</em> signals and SCL 8051 ALU without <em>nsleep</em>. Both versions have combinational logic (C/L), registers, and completion components, which all utilize slept gates. Both three-stage pipelined and non-pipelined designs were …
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Cooling Power Electronic Building Blocks Aboard Navy Ships
The Navy Integrated Power and Energy Corridor (NiPEC) is a modular entity that encapsulates all the power handling requirements of a shipboard power and energy distribution system including transmission, conversion, protection, isolation, control and storage. The basic component of the NiPEC is the …
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