Browsing Dissertations & Theses by Title
Now showing items 519-538 of 608
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Simulation And E-beam Patterning Of Single Electron Transistor
(Electrical Engineering, 2007-08-23)Electron beam lithography is gaining widespread use as semiconductor industry. Current optical lithography techniques are limited to resolution of few hundreds of nanometers and suffer from diffraction problems. The focus ... -
Simulation Of Tetrahedral Mesh Based Organ Deformation Using Parameter Optimized Spring Constants
(Electrical Engineering, 2008-09-17)Virtual reality based surgical simulators are becoming increasingly popular for training doctors on minimally invasive surgery. For these simulators, it is necessary to generate 3D organ models and create virtual environments ... -
A Simulation Tool Suite For The Modeling And Optimization Of Multiple Quantum Well Structures
(Electrical Engineering, 2007-08-23)This thesis aims to develop a suite of computational tools for design, analysis, and simulation of semiconductor multiple quantum well structures with a user-friendly GUI. The research project focuses on the electrical and ... -
Simultaneous Robot Localization And Mapping Of Parameterized Spatio-temporal Fields Using Multi-scale Adaptive Sampling
(Electrical Engineering, 2008-08-08)This dissertation presents a Multi-scale Adaptive Sampling (AS) framework for combining measurements arriving from mobile robotic sensors of different scales, rates and accuracies, in order to reconstruct a parametric ... -
SMARTPHONE-BASED CROWD SOURCING OF BICYCLE AND PEDESTRIAN CONFLICT DATA FOR TRANSPORTATION SAFETY ASSESSMENT
(2016-08-15)This thesis presents the idea of mobile application development that aims at data collection for transportation safety assessment using cloud-based database. At present, transportation safety assessment relies only on data ... -
Solid-state Devices For Detection Of DNA, Protein Biomarkers And Cells
(Electrical Engineering, 2012-07-25)Nanobiotechnology and BioMEMS have had tremendous impact on biosensing in the areas of cancer cell detection and therapeutics, disease diagnostics, proteomics and DNA analysis. Diseases are expressed on all levels including ... -
Some Considerations Of Performance And Capacity Of Voice Over IP High Bit Rate Wireless Reverse Links
(Electrical Engineering, 2014-12)Evaluation of the performance and capacity of the wireless reverse links, that support concurrent voice over IP and packet data services, is important for spectral efficiency considerations. For a given traffic mix, this ... -
Sparse Array for Wireless Sensor Networks and Wireless Communications
(2017-05-11)Underwater target detection and recognition has been widely used nowadays. In this dissertation, we show that the 3-D nested-array system can provide O(N^2) degree of freedom by using only N physical sensors when the second ... -
SPARSE DECENTRALIZED PRINCIPAL COMPONENTS ANALYSIS FOR DIMENSIONALITY REDUCTION
(2016-05-10)Principal components analysis (PCA) is a data compression technology relying on dimensionality reduction. In a wireless sensor network, the acquired data may be spatially scattered and include many zero variables, for ... -
Sparse Sampling And Array For Wireless Communications
In recent years, sparse sampling and array, such as coprime sampling, nested sampling, nested array, attract attention for their potential to estimate autocorrelation coefficients with all lags, and to calculate the power ... -
SPARSE SAMPLING AND ARRAY IN SIGNAL PROCESSING
(2017-04-25)Sparse sampling and sparse arrays have attracted lots of interests in recent years. In this dissertation, we firstly apply nested sampling and co-prime sampling to ultra-wide band radar, which require us to extend the ... -
Sparse Sensing In Big Data
Big data requires exceptional technologies to efficiently process large quantities of data within tolerable elapsed times. While the potential benefits of Big Data are significant, there are still a lot of technical ... -
SPARSE SIGNAL RECONSTRUCTION IN LINEAR INVERSE SCATTERING PROBLEM
(2015-12-09)Proper mathematical modeling of inverse scattering problem is of utmost importance in applications such as optical imaging and microscopy, radar, acoustic, seismic and medical imaging. However, the problem is non-linear ... -
Sparsity Enhanced Reconstruction Algorithms For Diffuse Optical Tomography
(Electrical Engineering, 2014-03-12)Conventional reconstruction algorithms for diffuse optical tomography (DOT) is based on Tikhonov regularization method and the simple white Gaussian noise (WGN) assumption. These approaches usually lead to the following ... -
Spatially Resolving Spectrometer For Characterisation Of Broad-area Laser Diodes
(Electrical Engineering, 2007-09-17)The mode pattern of the BALD (Broad-Area Laser Diode) is characterized and measured using a 1-GHz resolution double-pass spectrometer. The design of spectrometer allowed also a spatial discrimination with 1mkm resolution. ... -
Statistical Analysis Of Indoor UWB Channel Parameters In Different Wall Corridors And Through-wall Environments
The indoor channel parameters appears different for Ultra Wide Band (UWB) systems than it does to narrow band systems. Generally UWB pulses are short and do not overlap in time like multipath sine waves. According to ... -
Steerable Antenna Array For UAV Applications
(2018-01-25)An antenna array system design, demonstrating the possible application on an unmanned aerial vehicle platform using a full wave electromagnetic simulation software is presented. Linear array of patches in E plane and H ... -
Structural and electrical characterization of single crystalline SrZrxTi₁-xO₃ thin films on Germanium
(2017-06-01)The epitaxial growth of crystalline oxides on semiconductors provides a pathway to introduce new functionalities to semiconductor devices. Key to coupling crystalline oxides to semiconductors electrically, to realize ... -
Structural Similarity Based Image Quality Assessment: Pooling Strategies And Applications To Image Compression And Digit Recognition
(Electrical Engineering, 2007-08-23)This thesis studies a recently proposed perceptual image similarity measure: the structural similarity (SSIM) index. Although still in its early stage, the SSIM index has demonstrated superior performance in a large number ... -
Structure & Decision In Mobile Wireless Sensor Networks
(Electrical Engineering, 2007-08-23)This work concerns the development of a novel structure of Discrete Event Controller (DEC) for mobile wireless sensor networks consisting of mobile robots and stationary wireless sensing nodes known as Unattended Ground ...