Browsing University of Waterloo by Title
Now showing items 9657-9676 of 18814
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An Investigation of the Role of Dynamic Axial Torque on the Disc Herniation Mechanism
(University of Waterloo, 2008-08-19)Background: Disc herniations are common and have been demonstrated as one potential source of low back pain. To date epidemiological studies have found associations between lifting, lifting and twisting and twisting with ... -
Investigation of the role of Hindsight in the development of the Drosophila midgut
(University of Waterloo, 2014-02-21)The Drosophila adult midgut is maintained through the division and differentiation of a population of intestinal stem cells (ISCs) (Issigonis and Matunis, 2010). The epithelial cells of the adult midgut are derived from ... -
Investigation of the scalar variance and scalar dissipation rate in URANS and LES
(University of Waterloo, 2011-02-22)Large-eddy simulation (LES) and unsteady Reynolds-averaged Navier-Stokes (URANS) calculations have been performed to investigate the effects of different mathematical models for scalar variance and its dissipation rate as ... -
An Investigation of the Soldering and Brazing Behaviour of Mg-Mg Joints using Sn, Zn and Mg containing Filler Metals
(University of Waterloo, 2012-05-10)In order to evaluate the feasibility of forming Pure Mg – Pure Mg and Mg Alloy – Mg Alloy joints using soldering and brazing, four filler metals (Sn, Sn-9Zn, Sn-9Zn+X wt%Mg and Mg:Zn:X(Sn-9Zn)) were used at peak heating ... -
Investigation of the use of Dynamic Resistance in Adaptive Welding and Statistical Relation to Quality
(University of Waterloo, 2019-09-19)The pursuit of real time quality detection of a resistance spot weld (RSW) in the automotive industry has progressed alongside technology. With the capability of modern controllers to collect real-time data from the welding ... -
An investigation of the use of gradients in imaging, including best approximation and the Structural Similarity image quality measure
(University of Waterloo, 2023-08-18)The L^2-based mean squared error (MSE) and its variations continue to be the most widely employed metrics in image processing. This is most probably due to the fact that (1) the MSE is simple to compute and (2) it possesses ... -
Investigation of Thermo-mechanical Degradation of Polypropylene-Low Density Polyethylene Blends Exposed to Simulated Recycling
(University of Waterloo, 2020-08-26)Polypropylene (PP) and low-density polyethylene (LDPE) are among the most extensively used resins used mainly in the packaging and automotive sectors and are the largest contributor to municipal waste. Plastic waste ... -
Investigation of Thermoelectric Thallium Chalcogenides
(University of Waterloo, 2020-01-24)Thermoelectric materials have drawn extensive attention because of their potential to provide assistance in reducing the usage of fossil fuel sources and the greenhouse effect. Throughout this thesis, the purpose was to ... -
Investigation of Thorax Response and Potential for Injury in Side Impacts Using Integrated Detailed Human and Vehicle Finite-Element Models
(University of Waterloo, 2018-08-14)Car accidents are amongst the most common causes of fatalities for a younger population in developed countries and world-wide. While research using Anthropometric Test Devices (ATDs) has led to improvements in frontal ... -
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 ...