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Estimation of vessel wall compliance using acoustic reflectometry
(2006)
This thesis focuses on the estimation of rubber tube wall compliance using a pulse echo-acoustic reflectometry technique. Five rubber latex tubes of different thicknesses were studied using a transient acoustic pulse, ...
High frequency behavioral modeling of second-order sigma delta modulators
(2006)
Sigma delta modulators (ΣΔMs) form part of the core of today’s mixed-signal de- signs. They are cornerstone components of oversampled data converters. Such data converters take advantage of digital signal processing ...
An impermeable membrane design for hearing aid applications
(2006)
A common problem when using a hearing aid is the accumulation of earwax, dust and water in the conduit that transmits the sound towards the ear. Hearing aids are damaged when unqualified people try to remove these foreign ...
Phase shifter system using vector modulation for phased array radar applications
(2006)
This work presents the design and implementation of a complete X-band phase shifter system using vector (polar) modulation, suitable for solid-state phased array radar applications, providing a cost effective solution which ...
Applications of the differential evolution optimization algorithm in power systems planning, operation and control
(2006)
This research work presents the application of the Differential Evolution Optimization Algorithm for solving various complex power systems problems: Reactive Power Planning, Congestion Management in Restructured Power ...
A time-domain simulation framework of an IPR-based shipboard integrated power system
(2006)
A real-time simulation framework of a shipboard integrated power system is developed in this work, with the main purpose of adding to the system a new modular device called Intelligent Power Router (IPR). The IPR is a ...
Characterization of asymmetric annular-slot antennas and design of a tunable asymmetric annular-slot antenna with ferroelectric material
(2006)
A statistical characterization of an annular slot ring antenna using DOE is presented. The models give an understanding on the effects of the antenna design parameters on the responses of the antenna. These models are ...
Effect of distributed energy storage systems in the voltage stability of an island power system
(2006)
In this work the author studies the effect of energy storage systems (ESS) used as distributed reactive compensation for voltage stability of an island power system. The dynamic voltage behavior using four load models was ...
Dealing with ill conditioning in recursive parameter estimation for a synchronous generator
(2006)
This thesis presents how to deal with ill-conditioning in recursive parameter estimation for a synchronous generator using subset selection, the Extended Kalman Filter (EKF), and the Iterated Extended Kalman Filter (IEKF). ...
Methodology, design, and implementation of a cardiac pacemaker prototype using a commercial low power microcontroller
(2006)
Cardiac pacemakers are medical devices widely used to treat heart diseases. Mod- ern pacemakers are ultra low power embedded systems with programmable function- alities, which include acquisition of heart signals samples ...