Browsing University of Waterloo by Title
Now showing items 13060-13079 of 18822
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Passive sampling to understand and predict sources of wastewater and agricultural contamination in rural watersheds
(University of Waterloo, 2023-07-12)Passive sampling techniques have emerged as valuable tools in environmental monitoring, offering distinct advantages over traditional discrete sampling methods. Discrete sampling techniques are only representative of the ... -
Passivity-Based Control of Sampled-Data Systems on Lie Groups with Linear Outputs
(Elsevier, 2016-12-22)We present a method of stabilizing a sampled-data system that evolves on a matrix Lie group using passivity. The continuous-time plant is assumed passive with known storage function, and its passivity is preserved under ... -
Password Advice Shouldn't Be Boring: Visualizing Password Guessing Attacks
(IEEE, 2013-09)Users are susceptible to password guessing attacks when they create weak passwords. Despite an abundance of text-based password advice, it appears insufficient to help home users create strong memorable passwords. We propose ... -
Patent Technological Diversity and Examination Outcomes in China
(University of Waterloo, 2018-12-07)This study examines how the duration of patent examination is affected by technological diversity of patent applications, using a sample of all pharmaceutical patent applications filed between 1985 and 2017 at State ... -
Path analysis of warning label effects on negative emotions and quit attempts: A longitudinal study of smokers in Australia, Canada, Mexico, and the US
(Elsevier, 2018-01-01)Background Cigarette pack health warning labels can elicit negative emotions among smokers, yet little is known about how these negative emotions influence behavior change. Objective Guided by psychological theories ... -
Path Following and Output Synchronization of Homogeneous Linear Time-Invariant Systems
(University of Waterloo, 2018-04-20)This thesis examines two aspects of the path following control design problem for Linear Time-Invariant (L.T.I.) systems assigned closed curves in their output space. In the first part of the thesis we define a path ... -
Path Following and Stabilization of an Autonomous Bicycle
(University of Waterloo, 2013-09-26)In this thesis we investigate the problem of designing a control system for a modern bicycle so that the bicycle is stable and follows a path. We propose a multi-loop control architecture, where each loop is systematically ... -
Path Following for Mechanical Systems Applied to Robotic Manipulators
(University of Waterloo, 2010-10-01)Many applications in robotics require faithfully following a prescribed path. Tracking controllers may not be appropriate for such a task, as there is no guarantee that the robot will stay on the path. The objective of ... -
Path Following for Mobile Manipulators
(Springer, 2017-07-25)This paper presents a framework of path following via set stabilization for mobile manipulator systems. The mobile manipulator is modelled as a single redundant dynamic system. The mobile base considered belongs to a large ... -
Path Following for Robot Manipulators Using Gyroscopic Forces
(University of Waterloo, 2017-08-23)This thesis deals with the path following problem the objective of which is to make the end effector of a robot manipulator trace a desired path while maintaining a desired orientation. The fact that the pose of the end ... -
Path following using dynamic transverse feedback linearization for car-like robots
(IEEE, 2015-02-16)This paper presents an approach for designing path following controllers for the kinematic model of car-like mobile robots using transverse feedback linearization with dynamic extension. This approach is applicable to ... -
A Path Home
(University of Waterloo, 2006-12-06)With the shift in perspective from temporary to permanent residence in this country, Sikhs are caught in between two polar ends of homeland and diaspora. This thesis attempts to illuminate a third – a universal permanence ... -
Path Integral Approaches and Graphics Processing Unit Tools for Quantum Molecular Dynamics Simulations
(University of Waterloo, 2012-08-21)This thesis details both the technical and theoretical aspects of performing path integrals through classical Molecular Dynamics (MD) simulations. In particular, Graphics Processing Unit (GPU) computing is used to augment ... -
Path integral ground state approaches for the study of weakly bound clusters and confined molecules
(University of Waterloo, 2018-09-21)This thesis presents the study of weakly bound clusters in the ground state (or the zero-temperature limit) using path integral molecular dynamics. Specifically, we look individually at the quantum properties of small ... -
A path integral ground state replica trick approach for the computation of entanglement entropy of dipolar linear rotors
(AIP Publishing, 2020-05-14)We calculate the second Rényi entanglement entropy for systems of interacting linear rotors in their ground state as a measure of entanglement for continuous rotational degrees of freedom. The entropy is defined in relation ... -
Path integral Langevin dynamics of complex molecular systems: from low-temperature quantum clusters to biomolecules
(University of Waterloo, 2011-08-31)This thesis presents an implementation of path integral molecular dynamics (PIMD) for sampling equilibrium and dynamical properties within the molecular modelling toolkit (MMTK) [J. Comp. Chem. 21, 79 (2000)], an open ... -
A path integral methodology for obtaining thermodynamic properties of nonadiabatic systems using Gaussian mixture distributions
(American Institute of Physics, 2018-05)We introduce a new path integral Monte Carlo method for investigating nonadiabatic systems in thermal equilibrium and demonstrate an approach to reducing stochastic error. We derive a general path integral expression for ... -
A path integral Monte Carlo method for obtaining thermodynamic properties of nonadiabatic systems
(University of Waterloo, 2017-09-22)The calculation of thermochemical properties is an important goal of quantum chemistry. Calculation techniques are well established for stable molecules. They are used routinely to calculate Gibbs energy (G) for stable ... -
Path Integrals in the Sky: Classical and Quantum Problems with Minimal Assumptions
(University of Waterloo, 2019-10-24)Cosmology has, after the formulation of general relativity, been transformed from a branch of philosophy into an active field in physics. Notwithstanding the significant improvements in our understanding of our Universe, ... -
The Path Less Taken: the Intersection of Narratives and the Icelandic Landscape
(University of Waterloo, 2020-04-27)Of the many lenses through which the value of landscape is evaluated, the lens most prevalently used is profitability. This thesis rejects that simplistic view and instead offers an alternative: evaluating a landscape via ...