Browsing University of Waterloo by Title
Now showing items 14059-14078 of 18735
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Quadratically Dense Matroids
(University of Waterloo, 2020-07-08)This thesis is concerned with finding the maximum density of rank-$n$ matroids in a minor-closed class. The extremal function of a non-empty minor-closed class $\mathcal M$ of matroids which excludes a rank-2 uniform ... -
Quadrotor Position Estimation using Low Quality Images
(University of Waterloo, 2011-09-28)The use of unmanned systems is becoming widespread in commercial and military sectors. The ability of these systems to take on dull, dirty, and dangerous tasks which were formerly done by humans is encouraging their rapid ... -
Quadrupole Electric Field for Erasing the Fine Structure Splitting of a Nanowire Quantum Dot Entangled Photon Source
(University of Waterloo, 2020-10-19)Entanglement is an essential tool in quantum information processing (QIP), for example, to achieve a secure quantum communication network and quantum computing. Semiconductor quantum dots can generate on-demand entangled ... -
A qualitative examination of the impact of social restrictions during COVID-19 pandemic on social relations and social interactions of adolescents aged 12-18 years in Ontario, Canada
(University of Waterloo, 2022-10-24)Background: The novel coronavirus outbreak (COVID-19) was declared a global pandemic by the World Health Organization (WHO) in March 2020 (WHO, 2020). The government of Ontario declared a stay-at-home order where schools ... -
Qualitative Properties of Hybrid Singular Systems
(University of Waterloo, 2019-01-15)A singular system model is mathematically formulated as a set of coupled differential and algebraic equations. Singular systems, also referred to as descriptor or differential algebraic systems, have extensive applications ... -
Qualitative Properties of Stochastic Hybrid Systems and Applications
(University of Waterloo, 2011-09-02)Hybrid systems with or without stochastic noise and with or without time delay are addressed and the qualitative properties of these systems are investigated. The main contribution of this thesis is distributed in three ... -
Qualitative Studies of Nonlinear Hybrid Systems
(University of Waterloo, 2010-12-14)A hybrid system is a dynamical system that exhibits both continuous and discrete dynamic behavior. Hybrid systems arise in a wide variety of important applications in diverse areas, ranging from biology to computer science ... -
A Qualitative Study of Task and Work-Social Networks
(University of Waterloo, 2013-01-25)Despite the well-recognized importance of interpersonal relationships within the work environment, there is no comprehensive approach or set of studies that provide a complete picture. As a step towards providing a complete ... -
Qualitative theory of impulsive delay differential equations
(University of Waterloo, 2000) -
Qualitative Theory of Switched Integro-differential Equations with Applications
(University of Waterloo, 2014-08-25)Switched systems, which are a type of hybrid system, evolve according to a mixture of continuous/discrete dynamics and experience abrupt changes based on a switching rule. Many real-world phenomena found in branches of ... -
Quality Assessment of Composite Materials using Ultrasonic Non-Destructive Testing Methods
(University of Waterloo, 2020-09-17)Non-destructive ultrasonic evaluation (NDE) is commonly used for assessment of civil infrastructure and characterization of construction materials. It is an efficient technique that could save millions of dollars with ... -
Quality of Care for Long-term Care Residents Living with Heart Failure in Ontario and Predictors of Hospitalization
(University of Waterloo, 2014-10-22)Background Heart failure (HF) is a disease that is on the rise, particularly in the aging population. It is common amongst residents of long-term care homes (LTCHs). Complicating the diagnosis and treatment of HF is ... -
Quality of Care Transitions for Rehabilitation Patients with Musculoskeletal Disorders
(University of Waterloo, 2010-08-24)Background: Care transitions are a common and frequently adverse aspect of health care, resulting in a high-risk period for both care quality and patient safety (Coleman, 2003; Forster et al., 2003; Picker Institute 1999; ... -
The quality of citizen scientists’ bee observations: An evaluation of PollinatorWatch at Royal Botanical Gardens and the rare Charitable Research Reserve
(University of Waterloo, 2014-02-12)Citizen science engages members of the nonscientific community in academic research, contributing to our collective knowledge of the natural environment through biological monitoring and environmental observations. Observation ... -
Quality of Dementia Care in the Community: Identifying Key Quality Assurance Components
(Canadian Geriatrics Society, 2016-12-01)Background: Primary care-based memory clinics (PCMCs) have been established in several jurisdictions to improve the care for persons with Alzheimer’s disease and related dementias. We sought to identify key quality indicators ... -
A Quality-Driven Approach to Enable Decision-Making in Self-Adaptive Software
(University of Waterloo, 2010-01-21)Self-adaptive software systems are increasingly in demand. The driving forces are changes in the software “self” and “context”, particularly in distributed and pervasive applications. These systems provide self-* properties ... -
Quality-Driven Cross-Layer Protocols for Video Streaming over Vehicular Ad-Hoc Networks
(University of Waterloo, 2011-08-31)The emerging vehicular ad-hoc networks (VANETs) offer a variety of applications and new potential markets related to safety, convenience and entertainment, however, they suffer from a number of challenges not shared so ... -
Quantification and Evaluation of Physical Shoulder Exposures in Police Mobile Data Terminal Operators
(University of Waterloo, 2009-09-30)Mobile police officers perform many of their daily duties within vehicles. Combined workspace inflexibility and prolonged driving exposure creates a risk for developing musculoskeletal issues. Limited research exists that ... -
Quantification and Profiling of Hepatic Retinoids in Freshwater Fishes by Liquid Chromatography – Tandem Mass Spectrometry
(University of Waterloo, 2018-03-26)Retinoids (vitamin A1) are a class of compounds essential for a number of physiological processes including vision and immune system function. They are stored as biologically inactive retinyl esters which are mobilized ... -
Quantification of Flare Combustion Efficiency through Mid-Wavelength Infrared Spectroscopy
(University of Waterloo, 2022-08-26)Flares convert unwanted hydrocarbon emissions into carbon dioxide to be disposed into the atmosphere. Although this conversion reduces the oil and gas industry’s greenhouse gas inventory, it is still responsible for ...