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 26 for “"Electrical activation"”.
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Ultra-High B Doping During Si(1-X)ge(x)(001) Gas-Source Molecular-Beam Epitaxy: A Mechanistic Study of Layer Growth Kinetics, Dopant Incorporation, Electrical Activation, and Carrier Transport
… increasing C*B and non-linearly, for CB > C*B . Electrical properties are in good agreement with theoretical values to C*B . When thetaB > thetaB,sat, B accumulates in the upper layer, and a parallel incorporation channel becomes available in which B is incorporated as B-pairs which are …
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Laser Annealing of Ion Implanted Silicon
… the dynamics of surface melting and regrowth and electrical activation of Si('+) and BF(,2)('+) ion implanted amorphized silicon annealed with a Q-switched Nd:glass laser ((lamda)= 1.06 (mu)m). In the theoretical calculations we have used the technique of finite difference equations to solve the …
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Structural and Electrical Properties of In and C + In implanted Ge, Si, and Si₁ˍₓGeₓ
… systematic studies on the structural and electrical properties of In doped and C + In co-doped Ge, Si, and Si1-xGex. In (and C) atoms were incorporated into Si, Si0.35Ge0.65, Si0.1Ge0.9, and Ge thin films by ion implantation. Electrical properties of the implanted samples were determined …
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Structural and Electrical Properties of In and C + In implanted Ge, Si, and Si₁ˍₓGeₓ
… systematic studies on the structural and electrical properties of In doped and C + In co-doped Ge, Si, and Si1-xGex. In (and C) atoms were incorporated into Si, Si0.35Ge0.65, Si0.1Ge0.9, and Ge thin films by ion implantation. Electrical properties of the implanted samples were determined …
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Development, Validation, and Application of Electromyometrial Imaging (EMMI) to Noninvasively Image Uterine Contractions
… can measure uterine electrical activity using a few electrodes on the abdomen, this method lacks sufficient spatial resolution and coverage and thus cannot accurately measure the exact location of electrical initiation and location-specific propagation patterns of …
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Evolution of Arsenic nanometric distributions in Silicon under advanced ion implantation and annealing processes
… investigated with reference to the metastable electrical activation and the successive deactivation under moderate thermal treatment (550-700°C). Three different approaches to form As USJ were investigated to understand their physical mechanisms to verify their possible application in next …
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Electrical system for interfacing with muscle for use in prosthetic devices
… measurements of muscle length, velocity, and electrical activation in order to provide feedback control for the stimulation. These measurements can also be used to interpret the user's intent for movement of their prosthesis. However, no such hardware exists that is portable, low-power, and …
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The development of novel passive and active photonic-crystal devices
… material systems. The thesis also presents an electrically-activated linear-waveguide photonic-crystal laser. A compact microcavity is created by introducing a defect inside a one-dimensional photonic crystal. Electrical-activation and edge-emission are achieved by patterning microcavity …
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Diffusion and Electrical Properties of Sulfur Implanted in Gallium-Arsenide
The diffusion and electrical properties of implanted sulfur in GaAs have been investigated with secondary ion mass spectrometry (SIMS) and differential resistivity and Hall measurements. Low dose (7 x 10('12) cm('-2), 250 keV) S implants exhibit redistribution behavior upon annealing which …
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Real Time Frequency Analysis of Signals From Lasso Catheter For Radiofrequency Ablation During Atrial Fibrillation
… and analyzed for each pulmonary vein that showed electrical activation. Frequency spectra for one second segment of signal for each channel were determined. The frequencies of channels were then compared to determine the channel with highest or dominant frequency. In most cases the frequency of a …
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Multiple Electrode Recording of Cardiac Activation.
Cardiac activation has been the subject of much research since its first practical clinical recording by Wilhelm Einthoven who in 1903 produced an electrocardiogram using a string galvanometer. This report describes a multiple electrode device which has been used to record the electrical activation …
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Cardiac Fibrosis and Ventricular Arrhythmogenesis: Unravelling the influence of fibrosis on electrical dysfunction in the development of heart failure
… were to characterise the relationships between electrical dysfunction and multi-scale structural remodelling in the progression towards HF. To investigate the possible electrophysiological variation associated with fibrosis, Wistar Kyoto (WKY) and spontaneously hypertensive rat (SHR) image …
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Personalized Biomechanical Heart Modeling for Clinical Applications
… fixed the values of all parameters and applied electrical activation patterns according to the pacing modes considered. We obtained a very good prediction of max LV dp/dt using various pacing patterns in 3 clinical cases. This preliminary clinical validation shows that the modeling of CRT is a …
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The Development and Utilization of Tandem Fluency in Human-Exoskeleton Interaction
… initiation, but often even before the full electrical activation of the primary agonist in many motions, the DNN is robust to variations in sensor hardware and input formatting, and furthermore the use of this prediction in the controls of a tandem robot system has potential to improve …
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Reliability of electromyography detection systems for the pelvic floor muscles
… report as a percent of their maximum voluntary electrical activation (% MVE). Signal to noise ratio (SNR) was calculated for each task. Comparisons were made between the RMS amplitudes and SNR recorded from each side of the PFM. Between-trial and between-day reliability was determined using a …
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Noninvasive Multi-Modality Studies of Cardiac Electrophysiology, Mechanics, and Anatomical Substrate in Healthy Adults, Arrhythmogenic Cardiomyopathy, and Heart Failure
… heart disease are caused by abnormalities in the electrical function of heart muscle cells or the cardiac conduction system. Electrocardiographic Imaging (ECGI) is a noninvasive modality for imaging cardiac electrophysiology. By combining recordings of the voltage distribution on the torso surface …
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Investigations of ultra shallow junction ion implanted biaxial tensile strained silicon by means of X-Ray, Raman and photoacoustic techniques
… mobilities and, for certain dopants, increased electrical activation. For these reasons it is the material of interest in this thesis. The prospects for industrial implementations of "-Si are heavily dependent on the effects of device processing steps, and the controllability of defect and dopant …
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Cardiac electro-mechanics: from CellML to the whole heart
… has been demonstrated in simulations of the electrical activation and mechanical contraction of cardiac myocytes, myocardial tissue, and models of ventricular structure and function. The framework has been implemented as part of the CMISS computational modelling environment. This allows for …
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Getting under your skin. Development of wearable devices for improved non-invasive diagnostics
… has been done to reach more mechanically and electrically compliant ways to interface with the skin; covering all the spectra from substrates with improved conformability that make intimate contact with it, to mixed conductive polymers that reduce the electrical impedance in between the body …
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Optical characterization of processed gallium arsenide
… at a lower temperature than that for which electrical activation occurs. The depth profile of a sample annealed at 400°C reveals that nucleation takes place not only at the boundary between the damaged and undamaged layers (i.e., "epitaxial regrowth") but also at the microcrystal/amorphous …
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