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 23 for “"Gate Control"”.
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Improving Open Channel Network Operation Using Gate Control Support Model Developed with ArcGIS Geoprosessing Tools
… effective step in achieving better operation of control structures in open channel networks. The purpose of this study was to develop a tool in ArcGIS for assisting the open channel network managers in operating flow control structures. This model presents a time schedule for gate operation based …
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Series-Connection of Silicon Carbide MOSFET Modules using Active Gate-Drivers with dv/dt Control
This work investigates the voltage scaling feasibility of several low voltage SiC MOSFET modules operated as a single series-connected switch using active gate control. Both multilevel and two-level topologies are capable of achieving higher blocking voltages in high-power converter applications. …
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Study and Application of the Space Curve Quantum Control Formalism
… and Information requires high accuracy in gate control despite noises and imperfections from the environment and physical implementation. Here we introduce an SCQC Formalism based on dynamical decoupling and reverse engineering. Space Curve Quantum Control Formalism discovers the tight …
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The computational modelling of the spinal cord neurons involved in the pain process
… 1965 Melzack and Wall proposed the influential gate control theory (GCT) of pain and, in general, this has been supported by subsequent research. This theory postulates that cells in the substantia gelatinosa, located within the spinal cord, act like a gate mechanism that modulates the flow of …
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Novel MOS-gated bipolar device concepts towards a new generation of power semiconductor devices.
Research in MOS-gated power semiconductor devices with combined bipolarlVIOS action has been motivated by the continuous industrial need for highly efficient devices with reduced power losses and high impedance gate control. The Insulated Gate Bipolar Transistor (IGBT) and the IVIOS Controlled …
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Comparison Between PWM and SVPWM Three-Phase Inverters in Industrial Applications
… efficiency. Both inverters use the same feedback controller and both have the same input voltage and the same load levels.</p><p>The first inverter is a three-phase sinusoidal pulse width modulation (PWM) inverter that generates gate-control signals using a sinusoidal wave source. It is shown that …
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A DSP based variable-speed induction motor drive for a revolving stage
… phase induction motor drive using Insulated Gate Bipolar Transistors (IGBT) at the inverter power stage is introduced to implement speed and position control for the revolving stage in the Frederic Wood Theatre This thesis presents a solution to control a 3-phase induction motor using the …
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The effectiveness of a hope intervention in coping with cold pressor pain
The Gate Control Model posits that cognitions and affect play a critical role in the experience of pain. Thus, research has been aimed at illuminating psychological factors that impact pain experience and targeting psychological processes that may alleviate suffering associated with pain. Hope is …
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Millimeter-Wave and Sub-Terahertz Parametric Harmonic Generation
… of the resistance by tuning the back-gate control voltage. A voltage-controlled inductor is proposed based on a transistor-controlled capacitor and demonstrated in a D-band injection-locked oscillator with a ≥16% tunable operating frequency range, dc power as low as 5.6 mW, and a …
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The effects of suggested analgesia on radiant heat pain as a function of hypnotic susceptibility: a signal detection analysis
The present study investigated the effects of suggested analgesia and level of hypnotic susceptibility (high vs. low) on acute radiant heat pain using a signal detection theory model. A signal detection paradigm was used in order to differentiate between sensitivity (sensory-discriminative) and …
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A comparison of electrical performance analysis between nanoscale double-gate and gate-all-around nanowire mosfet
The Double-Gate and Gate-all-Around are said to be the promising candidates to pursue Complementary-Metal-Oxide Semiconductor scaling. When the device is scaled down, several problems arise such as the short-channel effect, excessive transistor gate leakage and power consumption. The purpose of …
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An Evaluation of the Efficacy of Selected Nonpharmacologic Pain Interventions in Infants
… each other. This study is based on the Gate Control Theory of pain which posits that benign stimuli, such as sucking, send messages to the central nervous system that compete with painful stimuli to decrease the amount of pain perceived. Sucrose is thought to be mediated through opioid …
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Quantum transport and bulk calculations for graphene-based devices
… many-body enhanced interlayer current flow, and gate-control thereof is the basis for the beyond-CMOS Bilayer-pseudoSpin Field Effect Transistor (BiSFET) proposed by colleagues. I studied the effect of various system parameters and on interlayer charge imbalance on the strength of the condensate …
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Design and fabrication of Emitter Controlled Thyristor
The Emitter Controlled Thyristor (ECT) is a new MOS-Gated Thyristor (MGT) that combines the ease of a MOS gate control with the superior current carrying capability of a thyristor structure for high-power applications. An ECT is composed of an emitter switch in series with the thyristor, an …
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Design and Fabrication of the Emitter Controlled Thyristor
The Emitter Controlled Thyristor (ECT) is a new MOS-Gated Thyristor (MGT) that combines the ease of a MOS gate control with the superior current carrying capability of a thyristor structure for high-power applications. An ECT is composed of an emitter switch in series with the thyristor, an …
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The effects of motivational interviewing on marital and pain adjustment in chronic pain patients and their spouses
… assigned to either the intervention group or control group. The couples in the intervention group received oral and written feedback, utilizing motivational interviewing techniques, regarding strengths and weaknesses of their relationship and pain coping. The couples in the control group …
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High Power Density and High Efficiency Converter Topologies for Renewable Energy Conversion and EV Applications
… The operation principle, modulation, and control strategy of these newly introduced converter topologies are presented in detail supported by simulation and experimental results. A thorough design optimization of these converter topologies (Si/SiC current rating ratio optimization and gate …
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InAs Nanowire Devices and Circuits
… The nanowire transistor structure investigated in this work combines a number of key technologies to achieve a higher performance than traditional Si-based transistors. Epitaxially grown nanowires are naturally oriented in the vertical direction, which means that the devices may be …
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The Clustered Insulated Gate Bipolar Transistor (CIGBT) — from concept to manufacturing
… novel power device called Clustered Insulated Gate Bipolar Transistor (CIGBT) is developed from concept to a pre-manufacturing product. The CIGBT uses MOS gate control over a thyristor action to achieve low conduction losses. A “Capacitive” turn-on mechanism ensures a smooth turn on of the …
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Treatment of musculoskeletal pain with the sting of the stinging nettle: Urtica dioica
… nerve stimulation (TENS) analgesia, and the gate control theory. Osteoarthritis Its clinical features, pattern and variability of pain, and treatments are considered. Attention is paid especially to non-pharmacological treatment strategies. Qualitative study The author and co-researchers' …
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