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Now showing items 21-28 of 28
Performance Analysis of Collision Avoidance Schemes in Ad Hoc Networks
(2012-04-11)
IEEE 802.11 DCF (Distributed Coordination Function) is a popular protocol used for
the physical and MAC layers in most ad hoc networks. DCF employs carrier sense multiple
access with collision avoidance (CSMA/CA) and a ...
Multi-Objective Direct Quasi-Sliding Mode Control of a Two Phase Buck Converter
(2012-07-20)
Multiphase converters are the state of the art for high efficiency point-of-load conversion for modern processors and FPGAs with wide operating load conditions. However, there are a variety of control issues that must be ...
Simulation and Characterization of an Exact Solvable Chaotic Oscillator and Matched Filter
(2012-07-23)
The simulation and characterization of a low frequency exact solvable chaotic oscillator and a corresponding matched filter is presented with discussion. The work builds on an existing design for the oscillator by realizing ...
Design and Construction of Carbon NanoTubes (CNTs) Triggered Pseudospark Switch
(2012-05-07)
Pseudospark switches have been used as fast closing switches in pulsed power systems. Advantages include high hold off voltage of 10s kV, high conduction current of ~104 A, fast current rise time of 1011 A/s, low delay and ...
Nonlinear Control of a Robot-Trailer System Using a Hybrid Backstepping-linearizing Approach
(2012-07-02)
In this work, the author develops a nonlinear controller to stabilize an autonomous wheeled robot and trailer system. A dynamic model based on robot-trailer kinematics that has previously proven sufficient for state feedback ...
Pulsed Breakdown Phenomena in Partial Vacuum
(2012-08-06)
In this thesis, the pulse generation and pulsed breakdown phenomena have been studied in detail. Pulsed power is widely used in food processing, biotechnology, military defense, and industrial applications. The first ...
Novel Techniques for Measuring Cardiac Shape and Mechanics with Magnetic Resonance Imaging
(2012-05-16)
Magnetic resonance imaging (MRI) is recognized as a non-invasive cardiac imaging test that provides the most complete, detailed and precise images. The rapid technical development of MRI makes it possible to evaluate cardiac ...
Design and Simulation of a High Frequency Exactly Solvable Chaotic Oscillator
(2012-07-27)
It has been shown that the performance of communication systems based on low dimensional chaotic systems with exact analytic solutions containing a single fixed basis function may exhibit performance comparable to that of ...