Now showing items 21-40 of 493

    • Hydrodynamic Stability of Free Convection from an Inclined Elliptic Cylinder 

      Finlay, Leslie (University of Waterloo, 2006)
      The steady problem of free convective heat transfer from an isothermal inclined elliptic cylinder and its stability is investigated. The cylinder is inclined at an arbitrary angle with the horizontal and immersed in an ...
    • Stability of Hybrid Singularly Perturbed Systems with Time Delay 

      Alwan, Mohamad (University of Waterloo, 2006)
      Hybrid singularly perturbed systems (SPSs) with time delay are considered and exponential stability of these systems is investigated. This work mainly covers switched and impulsive switched delay SPSs . Multiple ...
    • Hydrodynamic Modeling of Dielectric Response in Graphene and Carbon Nanotubes 

      Zuloaga, Jorge (University of Waterloo, 2006)
      This thesis studies two important carbon structures, graphene and carbon nanotubes, with the purpose of understanding how their three-dimensional electron density distribution affects the way fast ions interact with them. ...
    • Error-Tolerant Coding and the Genetic Code 

      Gutfraind, Alexander (University of Waterloo, 2006)
      The following thesis is a project in mathematical biology building upon the so-called "error minimization hypothesis" of the genetic code. After introducing the biological context of this hypothesis, I proceed to develop ...
    • The Sigma-Delta Modulator as a Chaotic Nonlinear Dynamical System 

      Campbell, Donald O. (University of Waterloo, 2007-01-23)
      The sigma-delta modulator is a popular signal amplitude quantization error (or noise) shaper used in oversampling analogue-to-digital and digital-to-analogue converter systems. The shaping of the noise frequency spectrum ...
    • Hydrodynamic Modelling of the Electronic Response of Carbon Nanotubes 

      Mowbray, Duncan John (University of Waterloo, 2007-02-08)
      The discovery of carbon nanotubes by Iijima in 1991 has created a torrent of new research activities. Research on carbon nanotubes ranges from studying their fundamental properties, such as their electron band structure ...
    • Stability and Boundedness of Impulsive Systems with Time Delay 

      Wang, Qing (University of Waterloo, 2007-04-13)
      The stability and boundedness theories are developed for impulsive differential equations with time delay. Definitions, notations and fundamental theory are presented for delay differential systems with both fixed and ...
    • Controller Gain Optimization for Position Control of an SMA Wire 

      Chau, Roger Chor Chun (University of Waterloo, 2007-05-17)
      There has been an increasing interest in the field of `smart structures' and `smart materials'. In constructing smart structures, a class of materials called smart materials are often used as sensors and actuators. An ...
    • Non-linear Effects on Stopping of Fast Moving Molecular Ions Through Solids 

      Wilson, Tyler (University of Waterloo, 2007-06-27)
      This thesis studies the non-linear (Barkas) effects on stopping of fast moving molecular ions through solids. We model the solid target by a rigid lattice of positive ion cores surrounded by a gas of electrons. To model ...
    • Distorted Wave Born Approximation For Inelastic Atomic Collision 

      Chak Tong Chan, Anthony (University of Waterloo, 2007-07-17)
      An investigation of the problem of inelastic scattering process under the Coulomb Born approximation is given. Different approaches to calculate Coulomb wavefunctions in the momentum space representation are analyzed and ...
    • Entire Solutions to Dirichlet Type Problems 

      Sitar, Scott (University of Waterloo, 2007-08-02)
      In this thesis, we examined some Dirichlet type problems of the form: \begin{eqnarray*} \triangle u & = & 0\ {\rm in\ } \mathbb{R}^n \\ u & = & f\ {\rm on\ } \psi = 0, \end{eqnarray*} and we were particularly ...
    • Determining relaxation times for porous media: Theory, measurement, and the inverse problem 

      Li, Yijia (University of Waterloo, 2007-08-03)
      This thesis provides an introduction to and analysis of the problem of determining nuclear magnetic resonance (NMR) relaxation times of porous media by using the so-called Carr-Purcell-Meiboom-Gill (CPMG) technique. We ...
    • Exact and Perturbed Friedmann-Lemaitre Cosmologies 

      Ullrich, Paul Aaron (University of Waterloo, 2007-08-07)
      In this thesis we first apply the 1+3 covariant description of general relativity to analyze n-fluid Friedmann-Lemaitre (FL) cosmologies; that is, homogeneous and isotropic cosmologies whose matter-energy content consists ...
    • Spectral analysis of internal waves generated by tide-topography interaction 

      Korobov, Alexander (University of Waterloo, 2007-08-21)
      Internal waves in the deep ocean play a deciding role in processes such as climate change and nutrient cycles. Winds and tidal currents over topography feed energy into internal waves at large scales; through nonlinear ...
    • Efficiency-based hp-refinement for finite element methods 

      Tang, Lei (University of Waterloo, 2007-08-23)
      Two efficiency-based grid refinement strategies are investigated for adaptive finite element solution of partial differential equations. In each refinement step, the elements are ordered in terms of decreasing local ...
    • The Effects of the Earth's Rotation on Internal Wave Near-resonant Triads and Weakly Nonlinear Models 

      Hu, Youna (University of Waterloo, 2007-08-24)
      This thesis investigates the effects of the earth's rotation on internal waves from two perspectives of nonlinear internal wave theory: near-resonant triads and weakly nonlinear models. We apply perturbation theory ...
    • Annular Capillary Surfaces: Properties and Approximation Techniques 

      Gordon, James (University of Waterloo, 2007-09-17)
      The capillary surface formed within a symmetric annular tube is analyzed. Assuming identical contact angles along each boundary, we consider surfaces u(x,y) that satisfy the capillary problem on an annular region. Several ...
    • Hedging Contingent Claims in Markets with Jumps 

      Kennedy, J. Shannon (University of Waterloo, 2007-09-25)
      Contrary to the Black-Scholes paradigm, an option-pricing model which incorporates the possibility of jumps more accurately reflects the evolution of stocks in the real world. However, hedging a contingent claim in ...
    • Analysis of Asymptotic Solutions for Cusp Problems in Capillarity 

      Aoki, Yasunori (University of Waterloo, 2007-09-27)
      The capillary surface $u(x,y)$ near a cusp region satisfies the boundary value problem: \begin{eqnarray} \nabla \cdot \frac{\nabla u}{\sqrt{1+\left|\nabla u \right|^2}}&=&\kappa u \qquad \textrm{in }\left\{(x,y): ...
    • Root-Locus Theory for Infinite-Dimensional Systems 

      Monifi, Elham (University of Waterloo, 2007-09-27)
      In this thesis, the root-locus theory for a class of diffusion systems is studied. The input and output boundary operators are co-located in the sense that their highest order derivatives occur at the same endpoint. It is ...

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