Search results
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Title
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"Si IGBT and SiC MOSFET” Hybrid Switch for Voltage Source Converters
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Author
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Liu, Haichen
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Date Created
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2022
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Subjects--Topical
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Electrical engineering
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Description
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The SiC devices have been a strong competitor than the conventional Si devices due to the superior characteristics of high operating voltage, low forward voltage, fast switching speed, and high operating temperature. However, the maturity of SiC t...
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Title
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A Trust Supportive Framework for Pervasive Computing Systems
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Author
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Peng, Dichao
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Date Created
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2009
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Subjects--Topical
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Computer science
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Description
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Recent years have witnessed the emergence and rapid growth of pervasive computing technologies such as mobile ad hoc networks, radio frequency identification (RFID), Wi-Fi etc. Many researches are proposed to provide services while hiding the comp...
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Title
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Analysis of failure mechanisms that impact safe Operation of AlGaN/GaN HEMTs
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Author
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Hodge, Michael
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Date Created
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2014
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Subjects--Topical
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Electrical engineering
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Description
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The reliability of AlGaN/GaN high electron mobility transistors (HEMTs) is traditionally determined via thermal lifetime acceleration stress tests. More recently it has been proposed that electric field has a prominent role in limiting lifetimes. ...
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Title
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Approaches for Oscillation Monitoring and Damping of Wind Integrated Power Grid
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Author
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Gurung, Niroj
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Date Created
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2018
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Subjects--Topical
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Electrical engineering
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Description
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Wind energy has emerged as one of the major choice of sustainable energy especially due to lower generation cost and push for alternative sources of clean energy. How- ever, the technological difference in wind generation is certain to create chan...
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Title
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CONTROL AND METHODS FOR PV INVERTER MINIATURIZATION
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Author
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Jafarian, Hamidreza
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Date Created
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2017
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Subjects--Topical
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Electrical engineering, Power resources
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Description
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Analyzing the price of PV generation systems in different market sectors shows that the portion of inverter cost and Balance of System (BoS) are increased due to advent of new PV module technologies and dramatic cost reduction in PV module product...
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Title
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DC MICROGRID WITH CONTROLLABLE LOADS
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Author
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Mazhari, Iman
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Date Created
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2017
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Subjects--Topical
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Electrical engineering
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Description
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The conventional electrical system in place today sees our electrical devices powered by AC mains. But as renewable technologies become more prevalent, DC microgrids could be a cheaper and more efficient alternative. To avoid any possible technica...
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Title
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Design and Analysis of Active Isolation in Power Converter Systems
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Author
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Halsted, Clint
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Date Created
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2020
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Subjects--Topical
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Electrical engineering
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Description
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This dissertation presents a new class of power converter topologies that realize galvanicisolation by utilizing active transistor devices instead of conventional transformers. The power converters employ standard switch-mode topologies but isolat...
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Title
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Dynamic Remedial Action Scheme Using Online Transient Stability Analysis
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Author
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Shrestha, Arun
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Date Created
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2016
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Subjects--Topical
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Electrical engineering, Engineering, Power resources
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Description
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Economic pressure and environmental factors have forced the modern power systems to operate closer to their stability limits. However, maintaining transient stability is a fundamental requirement for the operation of interconnected power systems. ...
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Title
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Dynamic suspension modeling of an eddy-current device: an application to Maglev
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Author
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Paudel, Nirmal
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Date Created
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2012
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Subjects--Topical
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Electrical engineering, Power resources, Electromagnetism
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Description
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When a magnetic source is simultaneously oscillated and translationally moved above a linear conductive passive guideway such as aluminum, eddy-currents are induced that give rise to a time-varying opposing field in the air-gap. This time-varying ...
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Title
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High Frequency GaN Power Converters Digital Twin
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Author
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Biglarbegian, Mehrdad
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Date Created
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2018
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Subjects--Topical
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Electrical engineering
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Description
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There is a need for a foundation of a research study aimed at investigations on near real-time reliability awareness of Gallium Nitride devices in high-frequency power converters for which we need advanced hardware and algorithms. This dissertatio...
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Title
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Improved Fidelity of Triangulation Sensor Measurements in Optical Inspection
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Author
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Hosseinpour, Milad
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Date Created
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2022
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Subjects--Topical
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Mechanical engineering, Optics
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Description
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With the evolution of gear design requirements for new applications, classical gear inspection based on a time-consuming line-oriented tactile measurement must be replaced with a more rapid, areal inspection that can capture complex modern gear mo...
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Title
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Modeling and Optimization of Demand-Side and Supply-Side Energy Management in Electricity Markets
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Author
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Vatani, Behdad
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Date Created
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2018
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Subjects--Topical
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Electrical engineering, Power resources, Operations research
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Description
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An energy management system (EMS) is a system designed for owners of generation companies (GenCos), operators of electricity markets and electric utility grids, as well as consumers and aggregators to monitor, control, and optimize the performance...
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Title
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Multiphysics nature of Lithium-ion Battery safety issues
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Author
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Jia, Yikai
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Date Created
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2022
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Subjects--Topical
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Mechanical engineering
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Description
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Safety issues of lithium-ion batteries (LIBs) are usually initiated from an internal short circuit (ISC) that can be triggered by external accidental abusive loadings. The generated heat and the increased temperature would lead to several complica...
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Title
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Optimization of Building Envelope Design for Daylighting and Thermal Performance
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Author
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Futrell, Benjamin
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Date Created
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2015
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Subjects--Topical
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Engineering, System theory, Building
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Description
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Buildings account for 40% of US energy usage. A building’s energy usage is largely determined by decisions made during its design. Such decisions relate to the form and orientation of the building, the materials used, and location of windows. A bi...
