Browsing University of Waterloo by Title
Now showing items 16952-16971 of 18899
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Symmetries
(University of Waterloo, 2016-10-03)Automorphisms of graphs, hypergraphs and disgraphs are investigated. The invariance of the chromatic polynomial in the rotor effect is disproved. New invariance results are obtained. It is shown that given any integer k ... -
Symmetries in Black Hole Spacetimes
(University of Waterloo, 2022-11-30)This thesis covers the role of explicit and hidden symmetries in some selected topics on the properties and excitations of black hole spacetimes. To this end, the symmetries of classical physics in Lorentzian manifolds are ... -
Symmetry and Topology in Disordered Systems
(University of Waterloo, 2023-06-14)Global symmetries greatly enrich the landscape of topological quantum phases, playing an essential role from symmetry-protection of topological insulators to symmetry charge fractionalization on anyons in fractional quantum ... -
Symmetry Breaking, Order-by-Disorder, Fragmentation, and Spin-Liquids in the Magnetic Pyrochlore Lattice with Anisotropic Interactions
(University of Waterloo, 2023-01-26)Within the study of frustrated magnetism, the pyrochlore lattice is deemed a fruitful ground where phenomena such as quantum and thermal order-by-disorder, moment fragmentation, and spin-liquids, both quantum and classical, ... -
Symmetry Induction in Computational Intelligence
(University of Waterloo, 2009-11-06)Symmetry has been a very useful tool to researchers in various scientific fields. At its most basic, symmetry refers to the invariance of an object to some transformation, or set of transformations. Usually one searches ... -
Symmetry of the Charge Ordering Phases in Hole-Doped Cuprates Studied by Resonant X-Ray Absorption and Scattering
(University of Waterloo, 2019-05-23)In the underdoped cuprates, superconductivity coexists with a rich variety of other electronic orders. Understanding the nature of these orders, how they interact with one another, and the mechanisms that produce them is ... -
Symmetry Reduction and Compositional Verification on Timed Automata
(University of Waterloo, 2017-08-24)This thesis is about techniques for the analysis of concurrent and real-time systems. As the first contribution, we describe a technique that incorporates automatic symmetry detection and symmetry reduction in the ... -
Symmetry, Asymmetry and Quantum Information
(University of Waterloo, 2012-09-28)It is impossible to overstate the importance of symmetry in physics and mathematics. Symmetry arguments play a central role in a broad range of problems from simplifying a system of linear equations to a deep role in ... -
Sympathetic Imagination: Posthumanist Thought in Electronic Literature and Games
(University of Waterloo, 2016-02-19)Martha Nussbaum insists on the power of “sympathetic imagining” for considering the lives of nonhuman animals. Literature, for Nussbaum, is a powerful site for imaging the lives of animals. This study extends Nussbaum’s ... -
Sympathetic Landscapes: an aesthetics for the Leslie Street Spit
(University of Waterloo, 2014-01-24)The Leslie Street Spit is a five kilometre rubble breakwater on the eastern waterfront of Toronto. Built during the mid-twentieth-century as an infrastructural add-on to the existing Port Lands Industrial District, the ... -
Synanthropic Suburbia
(University of Waterloo, 2015-09-30)Animals are invading the city. Coyotes are sighted on downtown streets with greater frequency, raccoons notoriously forage through greenbins as their primary source of food, and all forms of animals inhabit the surfaces, ... -
Synchronization in Heterogeneous Networks of Hippocampal Interneurons
(University of Waterloo, 2005)The hippocampus is one of the most intensely studied brain structures and the oscillatory activity of the hippocampal neurons is believed to be involved in learning and memory consolidation. Therefore, studying rhythm ... -
Synchronization of Complex-Valued Dynamical Networks
(University of Waterloo, 2021-09-27)Dynamical networks (DNs) have been broadly applied to describe natural and human systems consisting of a large number of interactive individuals. Common examples include Internet, food webs, social networks, neural networks, ... -
Synchronization of coupled reaction-diffusion neural networks: Delay-dependent pinning impulsive control
(Elsevier, 2019-12)This paper studies the synchronization problem of coupled reaction-diffusion neural networks with time-varying delays. A novel pinning impulsive controller is proposed, where distributed delays and discrete delays are taken ... -
Synchronized closed path following for a differential drive and manipulator robot
(IEEE, 2016-05-23)We locally solve a synchronized path-following problem for a heterogeneous multiagent system consisting of a differential drive robot and a serial manipulator. Each is assigned a simple, regular, and closed curve in its ... -
Synchronized closed-path following for a mobile robot and an Euler-Lagrange system
(University of Waterloo, 2013-09-20)We propose and solve a synchronized path following problem for a differential drive robot modeled as a dynamic unicycle and an Euler-Lagrange system. Each system is assigned a simple closed curve in its output space. The ... -
Synchronized Motion Control of Dual Robot Manipulator Systems
(University of Waterloo, 2020-09-14)Dual manipulator systems are capable of accomplishing a variety of tasks, such as manipulating large and heavy objects and assembling parts, that might be impossible for single manipulators. These collaborative tasks ... -
Synergistic pH effect for reversible shuttling aptamer-based biosensors between graphene oxide and target molecules
(Royal Society of Chemistry, 2011-06-07)DNA aptamers are known to desorb from graphene oxide (GO) surface in the presence of target molecules. We demonstrate herein that the binding equilibrium can be shifted by simply tuning the solution pH. At lower pH, the ... -
Synergy in Additive Manufacturing and Machining of Complex Design Topologies
(University of Waterloo, 2019-06-25)Additive manufacturing (AM) enables freedom of design, part complexity and customization with minimal added cost, light weighting, design for function, and part consolidation. It is gaining increasing interests in the ... -
Syntactic Complexities of Nine Subclasses of Regular Languages
(University of Waterloo, 2012-07-31)The syntactic complexity of a regular language is the cardinality of its syntactic semigroup. The syntactic complexity of a subclass of the class of regular languages is the maximal syntactic complexity of languages in ...