Browsing Theses by Title
Now showing items 8074-8093 of 15628
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Investigation of Time Domain Modulation and Switching-Mode Power Amplifiers Suitable for Digitally-Assisted Transmitters
(University of Waterloo, 2010-09-22)Innovation in wireless communication has resulted in accelerating demand for smartphones using multiple communications protocols such as WiFi, Bluetooth and the many cellular standards deployed around the world. The variety ... -
Investigation of Transient Gas Dynamics from Laser-Energized Nanoparticles
(University of Waterloo, 2013-08-21)Soot is formed whenever the combustion of hydrocarbon fuels is incomplete. Since soot particles are very small, they can be inhaled and cause severe health problems, such as pulmonary diseases. They can also cause environmental ... -
Investigation of Turbulent Spray Flames Using the Conditional Source-term Estimation (CSE) Approach
(University of Waterloo, 2022-05-16)Conditional Source-term Estimation (CSE) is a turbulent combustion model for gaseous combustion. This work aims at extending the CSE formulation to address turbulent spray combustion. The Eulerian-Lagrangian method is ... -
An investigation of UV disinfection performance under the influence of turbidity & particulates for drinking water applications
(University of Waterloo, 2005)UV disinfection performance was investigated under the influence of representative particle sources, including wastewater particles from secondary effluent in a wastewater treatment plant, river particles from surface ... -
Investigation of vegetable and fruit intake of First Nation schoolchildren: Do school nutrition programs make a difference?
(University of Waterloo, 2010-08-31)Objectives: To investigate the vegetable and fruit, “other” foods, fibre, folate, vitamin A, and vitamin C intakes of First Nations children and adolescents residing in seven communities in northern and southern Ontario, ... -
Investigation of vision strategies used in a dynamic visual acuity task
(University of Waterloo, 2017-10-24)Purpose: Dynamic visual acuity (DVA), the ability to resolve fine details of a moving target, requires spatial resolution and accurate oculomotor control. Individuals who engage in activities in highly dynamic visual ... -
Investigation of Visualization Needs for Vertical Repetitive Projects
(University of Waterloo, 2018-04-27)Repetitive construction projects, particularly high-rise buildings, are complex projects that suffer from cost overruns and delays. For these projects, efficient repetitive scheduling becomes necessary. Repetitive scheduling, ... -
Investigation of Whiplash Associated Disorders using Finite Element Neck Models with Active Musculature in Frontal, Rear and Lateral Impact
(University of Waterloo, 2020-03-19)Whiplash associated disorders (WAD) represent one of the most frequent injuries following a motor vehicle collision, with a significant economic cost of $29 billion in the United States and €10 billion in Europe. Although ... -
An Investigation of Word Sense Disambiguation for Improving Lexical Chaining
(University of Waterloo, 2006)This thesis investigates how word sense disambiguation affects lexical chains, as well as proposing an improved model for lexical chaining in which word sense disambiguation is performed prior to lexical chaining. A ... -
Investigation of β-xylosidase, α-L-arabinofuranosidase and acetylesterase from Thermotoga hypogea
(University of Waterloo, 2008-09-03)Hemicellulases are key components in the degradation of plant biomass and carbon flow in nature. Thermotoga hypogea is a bacterium that can grow anaerobically at 90°C. It utilizes carbohydrates and peptides as energy and ... -
An Investigation on Passive Inter-Modulation generated by antenna contact
(University of Waterloo, 2017-09-06)In modern day handheld cellular devices, low-profile is a key design target. In addition, with the introduction of 4G protocols, the number of cellular bands has increased significantly and the simultaneous transmission ... -
Investigation on performance enhancement of micro-sized IR photodetectors
(University of Waterloo, 2021-09-16)As an Infrared detector with high responsivity, high transmission speed, and low dark current, InP/InGaAs p-i-n photodetectors (PD) have been used as a promising technology for many applications, including optical communication ... -
Investigation on Reaction Mechanisms of Nano-energetic Materials and Application in Joining
(University of Waterloo, 2019-01-23)Nano-energetic materials, also known as metastable intermetallic composites (MICs), have shown promise in applications such as propellants, pyrotechnics, and explosives. The work in this thesis pursues a deep understanding ... -
Investigation on the Compress-and-Forward Relay Scheme
(University of Waterloo, 2012-01-20)The relay channel plays an integral role in network communication systems. An intermediate node acts as a relay to facilitate the communication between the source and the destination. If the rate of codewords is less than ... -
Investigation on the Effects of Fastening Parameters on the Handle Displacement of a Pistol Grip Tool
(University of Waterloo, 2023-01-23)Workers in automotive assembly lines routinely use DC-powered pistol grip tools to install threaded fasteners. While these tools are easy to use and increase production quality, tool operators are subjected to impulsive ... -
Investigation on the implications of passive fire barriers on the fire fighting tactics of the Royal Canadian Navy
(University of Waterloo, 2022-03-28)The Royal Canadian Navy (RCN) is currently in the process of recapitalizing the fleet under the National Shipbuilding Strategy (NSS). This will result in a modern fleet that includes new marine safety requirements that did ... -
Investigation on using Supercritical Carbon Dioxide as Desorbing and Reaction Medium in the Surfactant Production Process
(University of Waterloo, 2007-05-22)To date, an estimated 70% of energy consumed comes from fossil fuels, such as coal, oil and natural gas. The major source of sulfur dioxide (SO2) emissions comes from combustion of these fossil fuels. Sulfur dioxide is a ... -
Investigations into Cellulolysis in Carbon Amended Tailings
(University of Waterloo, 2011-05-24)Modified cellulase enzyme assay methods were developed to determine the potential of using enzyme activities to evaluate the decomposition of organic matter in carbon amended mine tailings systems. Cellulase assays are ... -
Investigations into food web structure in the Beaufort Sea
(University of Waterloo, 2017-12-18)The effects of climate change on marine ecosystems are most pronounced in the Arctic, where ice free summers have been predicted to occur by mid-century. Climate-related changes to sea ice phenology, oceanographic habitat ... -
Investigations into Impedance Tuners for the Next Generation of Communication Systems
(University of Waterloo, 2023-01-03)Novel communication systems, including 5G and the upcoming 6G cellular networks and software defined/cognitive radio technologies, call for compact, multi-band, and reconfigurable circuit components. Specifically, stringent ...