Browsing Theses by Title
Now showing items 13439-13458 of 15614
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Stability of a Structural Column under Stochastic Axial Loading
(University of Waterloo, 2009-08-19)Columns subjected to time varying axial load may exhibit dynamic instability due to parametric resonance. This type of instability is inherent in structures; it is not due to material or geometrical imperfections, and can ... -
Stability of Coastal Jets: Linear Stability Calculations and Nonlinear Simulations
(University of Waterloo, 2016-05-16)In this thesis, a new numerical ocean model, Tempest, has been developed for application to simple process studies of large-scale ocean dynamics. This model allows for hydrostatic, non-hydrostatic, quasi-hydrostatic, and ... -
Stability of compressible boundary layers in presence of smooth roughness and wall temperature effects
(University of Waterloo, 2023-01-26)In natural laminar flow design, aircraft manufacturers aim to delay the laminar-to-turbulent transition by modifying the geometric features of the aircraft to stabilize the boundary layer. Yet, the transitional process is ... -
Stability of Hybrid Singularly Perturbed Systems with Time Delay
(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 ... -
Stability of Impulsive Switched Systems in Two Measures
(University of Waterloo, 2010-09-28)This thesis introduces the notion of using stability analysis in terms of two measures for impulsive switched systems. Impulsive switched systems are defined in the context of hybrid system theory and the motivation for ... -
Stability of Nonlinear Functional Differential Equations by the Contraction Mapping Principle
(University of Waterloo, 2016-08-29)Fixed point theory has a long history of being used in nonlinear differential equations, in order to prove existence, uniqueness, or other qualitative properties of solutions. However, using the contraction mapping ... -
The Stability of the Drygalski Ice Tongue
(University of Waterloo, 2020-01-24)Antarctica has the potential to contribute to sea-level rise by up to 58 m if it were to entirely melt. The Antarctic Ice Sheet is fringed by floating ice in the form of ice shelves and ice tongues, which help to buttress ... -
Stabilization of Aqueous Template-Based Functionalized Magnetic Nanoparticles
(University of Waterloo, 2011-10-31)Magnetic particles have attracted increasing attention in fields ranging from separation processes to electromagnetic information storage an medical application. Various approaches for their synthesis have been developed ... -
Stabilization of Discrete-time Systems With Bounded Control Inputs
(University of Waterloo, 2000)In this paper we examine the stabilization of LTI discrete-time systems with control input constraints in the form of saturation nonlinearities. This kind of constraint is usually introduced to simulate the effect of ... -
Stabilization of Mercury in River Water and Sediment Using Biochars
(University of Waterloo, 2016-11-29)Mercury (Hg) is a common contaminant in air, oceans, lakes, rivers, soils, and sediments as elemental, inorganic and organic forms. Organic Hg (e.g., methylmercury (MeHg)), which is much more toxic than other forms and can ... -
Stabilization of Polytopes for Fully Actuated Euler-Lagrange Systems
(University of Waterloo, 2014-10-08)Given an Euler-Lagrange system and a convex polytope in its output space, we design a switched feedback controller that drives the output to the polytope. On the polytope, the system output tracks assigned trajectories ... -
Stabilization Strategies of the Lumbar Spine in Vivo
(University of Waterloo, 2002)In developing a method of quantifying stability in the lumbar spine Cholewicki and McGill (1996) have also broached the notion of sufficient stability, where too much stiffness (and stability) would hinder motion. Thus ... -
A Stabilizer Formalism for Infinitely Many Qubits
(University of Waterloo, 2023-01-27)The study of infinite dimensional quantum systems has been an active area of discussion in quantum information theory, particularly in settings where certain properties are shown to be not attainable by any finite dimensional ... -
Stabilizing DNA G-quadruplexes by thallium(I) and its application for thallium detection
(University of Waterloo, 2015-08-21)Heavy metals such as thallium are dangerous to living organisms and the environment. They are toxic and harmful. The threat of pollution from these metals is ever growing due to increased mining around the world. Thallium ... -
Stabilizing the Psychological Dynamics of People in a Crowd
(University of Waterloo, 2008-08-25)This thesis investigates the use of control theory as a means to study and ultimately control the psychological dynamics of people in a crowd. Gustav LeBon's suggestibility theory, a well-known account of collective ... -
Stabilizing Weighted Graphs
(University of Waterloo, 2017-08-29)An edge-weighted graph G = (V,E) is called stable if the value of a maximum-weight matching equals the value of a maximum-weight fractional matching. Stable graphs play an important role in some interesting game theory ... -
Stable isotope analyses (δ15N, δ13C) as a tool to define exposure of white sucker (Catostomus commersonii) to pulp mill effluent in Jackfish Bay, Lake Superior
(University of Waterloo, 2016-02-17)Effects of effluent from the pulp mill in Terrace Bay, Ontario, on fish have been extensively studied since the late 1980s. Fish collected at this site over the past several decades have shown a variety of physiological ... -
Stable Isotope Ecology of Tropical Bats
(University of Waterloo, 2019-08-12)Stable isotopes have been used to characterize differences in animal diet and behaviour since experimental studies by DeNiro and Epstein (1979; 1981). Examining isotopic ratios enables researchers to track how animals ... -
Stable Isotope Fractionations of Chlorinated Ethenes Associated with Physical Processes
(University of Waterloo, 2017-01-24)Chlorinated ethenes are the widespread source of groundwater contamination, which mostly originate from industrial and dry-cleaning facilities. Since chlorinated ethenes are denser than water, they sink below the water ... -
Stable isotope mass balance of the North American Laurentian Great Lakes
(University of Waterloo, 2011-09-29)This thesis describes a method for calculating lake evaporation as a proportion of water inputs (E/I) for large surface water bodies, using stable isotope ratios of oxygen (18O/16O) and hydrogen (2H/1H) in water. Evaporation ...