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Now showing items 11-20 of 197
Time Synchronization In Network-centric Sensor Networks
(Electrical Engineering, 2007-08-23)
Time synchronization is a crucial component of infrastructure for wireless sensor networks (WSN). Most applications of WSNs make extensive use of time synchronization, for accurate timestamping of events, coordinate ...
Wireless Sensor Network Testbed: Measurement And Analysis
(Electrical Engineering, 2007-08-23)
Energy conservation is critical in Wireless Sensor Networks. Replacing or recharging batteries is not an option for sensors deployed in hostile environments. Generally communication electronics in the sensor utilizes most ...
Decision And Control In Distributed Cooperative Systems
(Electrical Engineering, 2008-09-17)
This dissertation presents novel matrix-based approaches for decision and control in distributed cooperative systems such as wireless sensor networks. A novel matrix-based Discrete Event Controller has been implemented for ...
Collision Detection And Penetration Depth Calculation In Virtual Surgical Simulation
(Electrical Engineering, 2009-09-16)
Virtual Reality (VR) based surgical simulators create a simulated, realistic three dimensional surgical environments using advanced graphic and haptic rendering techniques. Virtual objects, which are geometric surface ...
Time-varying Feedback Systems Design Via Diophantine Equation Order Reduction
(Electrical Engineering, 2008-04-22)
Diophantine equation plays an important role in the design and synthesis of feedback compensators. Many methods have been developed to solve the Diophantine equation. This dissertation develops a new systematic approach ...
Integrated MEMS Microsensors
(Electrical Engineering, 2008-04-22)
Many Micro-Electro-Mechanical Systems (MEMS) products have been commercialized at a fraction of the cost and size of conventional devices. Low cost, small sizes and multi-function are the ultimate objectives of commodity ...
Effects Of Voltage Unbalance And System Armonics On The Performance Of Doubly Fed Induction Wind Generators
(Electrical Engineering, 2009-09-16)
Inherent difficulties in management of electric power in the presence of an increasing demand for more energy, non-conventional loads such as digital appliances, and non-sustainable imported fossil fuels has initiated a ...
Surface texturing by solution deposition for omnidirectional antireflection
(Original publisher: Applied Physics LettersUniversity of Texas at Arlington, 2007-08)
Surface texturing by solution deposition has been developed for antireflection in solar cells. The surface texture is formed by a monolayer of microscale silica particles partially immersed into a spin-on-glass film with ...
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 ...
A Frequency Domain Approach For Time-reversal Of Microwave Impulses
(Electrical Engineering, 2009-09-16)
In this thesis, a compact and low-cost electronic circuit system is designed for time-reversal of microwave impulses with nanosecond and sub-nanosecond temporal durations. A frequency domain approach is adopted in order ...