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 14 of 14 for “"Induced voltage"”.
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Numerical and Experimental Study of Pacemaker Safety under MRI
… novel techniques for the evaluation of MRI-induced heating or induced voltage in the vicinity of implanted metallic lead have been developed based on the reciprocity theorem. The measurement configurations have been described in detail. The technique was validated in both numerical and …
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Synchronized Rotor Angle Measurement of Synchronous Machines
… protection of generators is the angle of the induced voltage internal to the generator. Current practice is to estimate this value using measurements from the terminals of the generator and mathematical models. This project aims to develop a system that would directly measure the internal …
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Effects of Electrode Surface Morphology on the Transduction of Ionic Polymer-Metal Composites
… deformation and vice versa). Due to low driving voltage (< 5 V) and ability to operate in aqueous environment, IPMCs are attractive for developing soft actuators and sensors for underwater robots and medical devices. This dissertation focuses on investigating the effects of electrode surface …
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Fabrication of superconducting nanowire single proton detectors
… 1064 nm photon wavelength at 2.1 K and a photon-induced voltage-pulse duration of [approx.] 3 ns.
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Lightning effects on underground distribution cable using alternative transient program
… 80% of the lightning strikes in Malaysia produce voltage in excess of 20 kV. This study was done to determine the possibility of having insulation breakdown of the underground cable either by direct stroke or by induction. The simulation was performed using Alternative Transient Program version of …
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Model Validation and Inversion of Active Implantable Medical Devices
… model development to be well-conditioned. Both induced voltage and heating models for the example AIMDs were developed to demonstrate the effectiveness of this method. Furthermore, the optimized validation pathways were designed according to a given AIMD model in a high electric field generator …
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Behavioral Modelling of the Transient and CdV/dt Induced Turn-on of a Hybrid High Power Switch Unit
… switching, which can induce a spike in the gate voltage of the low side Si IGBT through the parasitic capacitances. This behavior poses a serious risk of lowering efficiencies in operation as well as safety concerns. In this study, a set of behavior models were developed for both the SiC MOSFET …
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Efficiency Improvement of RF Energy Transfer by a Modified Voltage Multiplier RF DC Converter
… level RF input power to a Direct Current (DC) voltage which is able to supply the mobile system. For this purpose, a novel approach for RF DC conversion is proposed. It consists of a modified voltage multiplier RF DC converter circuit by incorporating an inductor at the input of the circuit, …
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Science of Nanofluidics and Energy Conversion
… ion drifting velocity is determined, and the induced voltage along the axial direction is obtained as a function of key material parameters, including the applied flow rate, environmental temperature, solution concentration and nanopore size. The molecular mechanism of ion hopping and motion …
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ULTRASTRUCTURAL NEURONAL MODELING OF CALCIUM DYNAMICS UNDER TRANSCRANIAL MAGNETIC STIMULATION
… reticulum (ER) with spine apparatus (SA), the voltage dependent calcium channels (VDCCs), and calcium influx at synaptic spines. Ultimately, the ER is responsible for synaptic plasticity and from here I determined under what conditions does TMS cause intracellular calcium to induce synaptic …
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Interactions of insecticidal spider peptide neurotoxins with insect voltage- and neurotransmitter-gated ion channels
… of these insecticidal toxins using voltage-clamp and current-clamp analysis of cockroach dorsal unpaired neurons utilising the whole-cell patch-clamp technique. The ability of these toxins to modulate the gating and kinetics of both voltage- and neurotransmitter-gated ion channels …
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Modelling and experimental studies of the magnetic properties of bulk high temperature superconductors
… profile of external field, during which the induced voltage within the pick-up coil wound around the sample is measured and used to calculate key fields for the purposes of comparison. The modelling part of the method establishes good agreement between the measured and simulated fields using …
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On-line condition monitoring and detection of stator and rotor faults in induction motors.
… bar fault detection techniques which utilise the induced voltage in the stator windings and the stator magnetic flux linkage after supply disconnection. The experimental results show that detecting the faults during rundown is generally difficult. However, the wavelet approach, which is based on …
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EFFECT OF CRYOPROTECTANT EQUILIBRATION ON TRANSMEMBRANE POTENTIAL OF BOVINE OOCYTES
… the effect of large and rapid osmotically induced volume perturbation on the transmembrane potential of bovine oocytes. The aim of this study was to evaluate and examine the difference in putative effects of non-permeating (PBS) and permeating (10% EG) solutions and to explore the …