Browsing Theses by Title
Now showing items 4207-4226 of 15526
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The Effect of an Axial Catalyst Distribution on the Performance of a Diesel Oxidation Catalyst and Inverse Hysteresis Phenomena during CO and C3H6 Oxidation
(University of Waterloo, 2012-09-19)The Diesel Oxidation Catalyst (DOC) is a key component in the exhaust after-treatment system of diesel engines. In this study two aspects of a DOC were investigated: catalyst distribution and reactant species interactions. ... -
Effect of Anode Purge on Polymer Electrolyte Membrane Fuel Cell Performance
(University of Waterloo, 2010-01-11)Polymer Electrolyte Membrane Fuel Cells (PEMFC) are promising power generating devices that use an electrochemical reaction to convert the energy from hydrogen fuel into usable electricity. One cell produces a small voltage ... -
The effect of anxiety on memory accuracy, response time, and confidence
(University of Waterloo, 2014-08-29)Anxiety is an emotional state that has been associated with negative outcomes on cognitive tasks, as well as low confidence in responses, specifically in the domain of long-term memory. The following series of experiments ... -
Effect of arterial blood perfusion pressure on vascular conductance and muscle blood flow at rest and exercise
(University of Waterloo, 2012-05-01)The adaptations of vessel diameter represented by vascular conductance (VC), muscle blood flow (MBF) and oxygen delivery (DO2est) were investigated during rest and exercise using the effects of gravity to manipulate ... -
The effect of biochar amendment on the health, greenhouse gas emission, and climate change resilience of soil in a temperate agroecosystem
(University of Waterloo, 2019-09-26)Biochar has been a successful soil amendment in tropical agriculture for thousands of years. Biochar’s intrinsic chemical and physical properties benefit agriculture in terms of soil health, environmental pollution, and ... -
The effect of biochar on soil health and greenhouse gas emissions in a conventional temperate agricultural system
(University of Waterloo, 2018-09-10)Biochar has been present in tropical agriculture as a soil amendment for millennia. Its ability to alter soil physical and chemical characteristics has been utilized to improve soil health and crop productivity. The use ... -
Effect of Biofiltration on DBP Formation at Full-Scale and Pilot-Scale
(University of Waterloo, 2008-01-25)Over the past century chlorine has been a reliable disinfectant to reduce transmission of waterborne diseases in drinking water. Concerns about chlorination have increased since it was discovered in the 1970s that use of ... -
Effect of Bridge Geometry on Seam Weld Microstructures in AA6xxx Aluminum Porthole Die Extrusions
(University of Waterloo, 2020-05-27)A series of porthole die extrusion trials were conducted with AA6xxx aluminum alloys to understand the influence of die geometry (bridge shape and welding chamber height), extrusion process parameters (ram speed) on the ... -
Effect of Buffer on Protein Capture with Weak Cation Exchange Membranes
(University of Waterloo, 2015-08-26)Ion exchange membrane chromatography represents a potential alternative to conventional Protein A or resin chromatography for protein capture of monoclonal antibodies (mAbs), due to its high throughput and low operation ... -
The Effect of Building Construction and HVAC Systems on PM Concentration from Outdoor Sources
(University of Waterloo, 2012-09-27)Adverse health effects of human exposure to particulate matter (PM) in indoor environments and the associated costs have been of interest in recent studies conducted outside Canada. It was, therefore, necessary to investigate ... -
The Effect of Canadian Tax Policy on Executive Equity Grants: Corporate Tax Planning and Managerial Power
(University of Waterloo, 2018-08-20)This study examines how the tax treatment of corporate tax-deductible restricted share units and employee tax-favoured stock options at the employer and employee level affect the extent of their use in executive equity ... -
Effect of Club Selection and Clubhead Speed on the Knee Joint during the Golf Swing
(University of Waterloo, 2018-05-23)Golf is a sport that can be played throughout one’s lifetime providing an opportunity for competition, socialization, and improved physical activity. Golf is commonly recommended by physicians to those with knee ailments, ... -
Effect of co-ions and counter-ions on mAb capture with weak cation exchange membranes
(University of Waterloo, 2020-01-20)Cation exchange chromatography (CEX) has risen as a promising alternative to Protein-A affinity chromatography for the capture of monoclonal antibody (mAb). mAb capture with CEX works on the basis of electrostatic interactions ... -
The Effect of Coarse Gravel on Cohesive Sediment Entrapment in an Annular Flume
(University of Waterloo, 2014-03-07)The amount and type of cohesive sediment found in gravel river beds can have important implications for the health of aquatic biota, surface/groundwater interactions and water quality. Due to landscape disturbances in the ... -
The Effect of Cold Spray Coating on Fatigue Life of Magnesium Alloy, AZ31B
(University of Waterloo, 2011-10-27)Wrought magnesium alloys are considered attractive candidates for structural members in automotive and aerospace industries due to their high specific strength. Although new processes have helped to produce high purity ... -
The effect of cold spray coating parameters on the residual stress and fatigue performance of magnesium alloys
(University of Waterloo, 2020-02-14)Global warming, dwindling fossil fuels, and the low efficiency of alternative energy sources such as batteries and solar panels compared to traditional carbon-based energy sources, have shifted the industrial design paradigm ... -
Effect of combined sodium arsenite and cadmium chloride treatment on heat shock protein gene expression in Xenopus laevis A6 kidney epithelial cells
(University of Waterloo, 2013-09-26)Sodium arsenite and cadmium chloride are two widespread environmental toxicants which have deleterious effects on living organisms. At the cellular level, sodium arsenite and cadmium chloride cause oxidative stress, ... -
Effect of Compressive Force on PEM Fuel Cell Performance
(University of Waterloo, 2009-01-23)Polymer electrolyte membrane (PEM) fuel cells possess the potential, as a zero-emission power source, to replace the internal combustion engine as the primary option for transportation applications. Though there are a ... -
The effect of concussion history on relevancy-based gating of visual and tactile stimuli
(University of Waterloo, 2018-01-23)At the cortical level, incoming sensory inputs are subject to interruption as they are transmitted to modality-specific cortical areas, in order to prevent excessive processing of task-irrelevant sensory information and ... -
Effect of Cu and die geometry on the extrudability of AA6xxx Alloys
(University of Waterloo, 2023-12-14)A series of extrusion trials were conducted with AA6xxx aluminum alloys with different Copper (Cu) levels to understand the influence of alloy content, die geometry, extrusion ratio and extrusion process parameters (ram ...