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 16 of 16 for “"Device Selection"”.
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Device Selection Criteria--Based on Loss Modeling and Figure of Merit
… the VR/VRM. By comparing the FOMs of different devices, the device with the lowest FOM value should have the best performance and lead to the lowest loss for this device in the circuit. Qgd*Rdson is a widely accepted and widely used FOM for power devices. Due to the lack of accuracy of the power …
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Factors Related to Self-Identification of Candidacy, Device Selection, and Self-Fitting of Over-The-Counter Hearing Aids
… related to self-identification of candidacy, device selection, and self-fitting of an OTC hearing aid. </p> <p>Method: Participants included 52 adults who were 40 years of age and older, self-reported having trouble hearing and were interested in trying an OTC hearing aid. They had to have …
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Cell modulated DC/DC converter
… and metrics are developed to aid in device selection for high frequency converter. A (30 MHz) converter is developed based on a modified class E inverter, single diode rectifier, and cell modulation control architecture based on the Fairchild Semiconductor FDN361AN MOSFET identified …
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Design considerations of a thirty-kilowatt, thirty-kilohertz, full-bridge inverter for application in a very-low-frequency communications system
… for a submarine communications application. Device selection and drive selection as well as testing data for inverter clamped mode of operation are presented.
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Imaging of Transient Analytical Plasmas Using Charge-Coupled Device Detectors
… exhibited, with the exception of charge coupled device (CCD) detection technology. The incorporation of a CCD into a high energy source spectroscopy laboratory is documented, considering device selection, hardware and software engineering, operating procedures, importance of simultaneous …
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An Examination of Fit and the Use of Mobile Devices for Performing Tasks
… better understand an individual’s use of mobile devices and the matching fit between type of mobile device and activity. As mobile devices swiftly progress and alter individuals’ ways of interacting with technology, a more comprehensive understanding of how tasks are impacted may help ensure …
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Vertical transport evacuation modelling
… often heavily rely on vertical transport devices (e.g. escalators, lifts, etc) to travel vertically between levels. Typically such devices provide a faster and more comfortable means to travel than the equivalent stairs. Such devices also provide an additional means for occupant egress. …
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Design and implementation of a network controller for a local area network
… The design is software-oriented, though device selection is discussed, both for the controller and its network interface. The local area network used for the development of this project is a sixteen hundred node campus network at Virginia Tech ( using LocalNet 20) supplied by SYTEK, Inc.
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Programming High-Performance Clusters with Heterogeneous Computing Devices
… OpenCL, OpenMP, OpenACC) across the accelerator devices within each compute node. Such explicit management of disjointed computation and memory resources leads to reduced productivity and performance. This dissertation focuses on designing, implementing and evaluating a runtime system for HPC …
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Output Capacitance Loss Measurement and Validation for Low-Voltage Silicon and GaN Devices in DC-DC Converter Applications
… can help achieve loss-less switching in a power device. However, this theory is not completely true as there even with soft-switching there is some degree of loss associated in the form of output capacitance-related hysteresis loss, channel turn-off loss, and loss during the dead-time period in …
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A usability assessment of a specific alternative computer input device for users with spinal cord injuries
… was to investigate the key factors of assistive devices for people with severe physical disabilities, i.e. spinal cord injury, when selecting and using an input device. The area of study was also concerned with validating a new computer device to enable those individuals with upper-limb …
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High power wide bandgap cascode switching circuits
… gate characteristics and noise immunity of devices, at the expense of greater on-state resistance. WBG cascodes have not, however, been widely accepted in commercial applications. Previous research has typically been too application-specific, with little practical information available for …
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Characterization and Modeling of High-Switching-Speed Behavior of SiC Active Devices
… of the emerging silicon carbide (SiC) devices, two SiC active switches, namely 1.2 kV, 5 A SiC JFET manufactured by SiCED, and 1.2 kV, 20 A SiC MOSFET by CREE, have been investigated systematically in this thesis. The static and switching characteristics of the two switches have firstly …
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Power Analysis and Prediction for Heterogeneous Computation
… approach. First, we explore the issue of greener device selection by characterizing device power and performance. For this, we explore previously untapped opportunities arising from a special type of graphics processor --- the low-power integrated GPU --- which is commonly available in commodity …
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Textile Macroelectronics: Architecting Sensate and Computational Fabrics across Scales
… textile framework—a synergy between functional device selection, textile structures, fabrication tools, and system architecture—that integrates a distributed network of sensing and computational elements as primitives or raw materials in the manufacturing process of electronic textile products. …
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Leveraging Right and Left Ventricular Coupling for Optimization of Mechanical Circulatory Support
Mechanical circulatory support devices have the potential for profound impact on cardiogenic shock patients. They enable volume propulsion and pressure gradient generation first by unloading and later by decoupling native cardio-vascular interactions, which reduces cardiac load and energy …