Browsing Theses by Title
Now showing items 14023-14042 of 15697
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Surface Tension and Adsorption Kinetics of Volatile Organic Amphiphiles in Aqueous Solution
(University of Waterloo, 2011-08-11)Amphiphiles that possess a dual character, hydrophobic and hydrophilic, are employed in many chemical, pharmaceutical and biological applications. Amphiphile molecules that include a hydrophilic head and a hydrophobic tail ... -
Surface Tension and Adsorption of Volatile Organic Amphiphiles in Aqueous Solution
(University of Waterloo, 2007-06-14)The surface tension of an interface separating two bulk phases is one of the most widely studied properties in surface science research. The importance of surface or interfacial tension is reflected in the diverse number ... -
Surface Tension Measurement of High Density Polyethylene and Its Clay Nanocomposites in Supercritical Nitrogen
(University of Waterloo, 2009-08-14)Surface tension of a polymer melt in a supercritical fluid is a principal factor in determining cell nucleation and growth in polymer microcellular foaming. Previous work has presented the surface tension of the amorphous ... -
Surface Tension Measurement of Polystyrene in Supercritical Fluids
(University of Waterloo, 2007-10-01)Interfacial tension provides valuable information about polymer processes such as foaming, particle (pigment) suspension, wetting, and blending. Among the methods commonly used to measure surface tension, drop shape methods ... -
Surface Topography/Chemistry Modification through the Creation of Pseudo-Periodic Surface Micro-structures using Pulsed Nanosecond Fiber Laser Irradiation
(University of Waterloo, 2015-01-22)The focus of this thesis is on the development of a methodology for modifying the surface of titanium implant devices to improve biocompatibility and osseointegration properties utilizing three approaches: 1) developing ... -
Surface Water Quality Modelling Considering Riparian Wetlands
(University of Waterloo, 2009-02-18)Riparian wetlands are believed to play an important role in mitigating non-point source pol- lution, acting as physical and biochemical buffers between diffuse pollution sources and receiving waters. Many studies examined ... -
Surface Wettability Impact on Water Management in PEM Fuel Cell
(University of Waterloo, 2012-10-01)Excessive water formation inside the polymer electrolyte membrane (PEM) fuel cell’s structures leads to the flooding of the cathode gas diffusion layer (GDL) and cathode gas flow channels. This results in a negative impact ... -
Surface-subsurface hydrologic exchange and nutrient dynamics in a groundwater-fed stream, Bauman Creek, Ontario, Canada
(University of Waterloo, 2015-05-22)The stream-riparian-aquifer interface plays a major role in the regional flow of nutrients and contaminants due to a strong physical-chemical gradient that promotes the transformation, retention, elimination or release of ... -
Surficial Materials Mapping using Remote Sensing and Classification Methods: A Geological Knowledge and Statistical Approach
(University of Waterloo, 2014-10-30)Mapping the geology of Northern regions in Canada is an essential step in providing key knowledge for resource development and economic prosperity of northern communities. However, mapping this large remote region presents ... -
Surmounting Trade Barriers: American Protectionism and the Canada-United States Free Trade Agreement
(University of Waterloo, 2009-09-02)This thesis examines US protectionism in the 1980s from Canadian and American perspectives, and its role in Canada’s pursuit of the historic 1988 Canada-US Free Trade Agreement. It analyzes the perceived “threat” of ... -
Surveilling Queerness and Queering Surveillance: The Techno-Social Making of Queer Identity in the US and Canada, 1939-Present.
(University of Waterloo, 2023-03-22)This dissertation positions itself at the intersection of two disparate areas of study: Queer theory and surveillance studies. It aims to tease out the ways that technologies of surveillance and Queer lifeways evolved ... -
A Survey of Attacks on Multivariate Cryptosystems
(University of Waterloo, 2005)This thesis provides a survey of the attacks on multivariate cryptosystems. We begin by providing an outline of the general multivariate cryptosystem. Proceeding from there, we show that even with this level of detail, ... -
A survey of Roth's Theorem on progressions of length three
(University of Waterloo, 2011-12-19)For any finite set B and a subset A⊆B, we define the density of A in B to be the value α=|A|/|B|. Roth's famous theorem, proven in 1953, states that there is a constant C>0, such that if A⊆{1,...,N} for a positive integer ... -
A Survey of the Classification of Division Algebras
(University of Waterloo, 2008-09-29)For a given field F we seek all division algebras over F up to isomorphism. This question was first investigated for division algebras of finite dimension over F by Richard Brauer. We discuss the construction of the Brauer ... -
A survey of the trust region subproblem within a semidefinite framework
(University of Waterloo, 2000)Trust region subproblems arise within a class of unconstrained methods called trust region methods. The subproblems consist of minimizing a quadratic function subject to a norm constraint. This thesis is a survey of ... -
A survey on Traitor Tracing Schemes
(University of Waterloo, 2000)When intellectual properties are distributed over a broadcast network, the content is usually encrypted in a way such that only authorized users who have a certain set of keys, can decrypt the content. Some authorized ... -
Surveying Local Community Members on the Viability of Mitigating Anemia in Ica, Peru, through School Gardening
(University of Waterloo, 2022-07-27)Anemia remains one of Peru’s most pressing public health issues, affecting a significant proportion of the country’s population. The disease’s impacts on the physiological and cognitive development of young children affected ... -
Survivable Virtual Network Embedding in Transport Networks
(University of Waterloo, 2020-07-28)Network Virtualization (NV) is perceived as an enabling technology for the future Internet and the 5th Generation (5G) of mobile networks. It is becoming increasingly difficult to keep up with emerging applications’ Quality ... -
Survival analysis of chronic dialysis patients
(University of Waterloo, 2018-08-13)Background: The number of dialysis patients is steadily rising in Canada because of demographic changes as well as an increased prevalence of associated risk factors such as hypertension, diabetes, and aging (Clark & Khan, ... -
Survival Analysis of Complex Featured Data with Measurement Error
(University of Waterloo, 2019-08-22)Survival analysis plays an important role in many fields, such as cancer research, clinical trials, epidemiological studies, actuarial science, and so on. A large body of methods on analyzing survival data have been ...