Browsing Theses by Title
Now showing items 11078-11097 of 15628
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Physical Activity Levels and Barriers to Exercise in Individuals with Low Bone Mineral Density
(University of Waterloo, 2013-09-27)Background: Fractures are a major health concern for older adults, especially for those with osteoporosis or low bone mineral density (BMD). Physical activity and exercise can be important self-management strategies for ... -
Physical Aging and Hygrothermal Response of Polycarbonate/Acrylonitrile-Butadiene-Styrene Polymer Blend
(University of Waterloo, 2007-05-16)Polycarbonate (PC) is a glassy engineering thermoplastic that has been used for decades because of its superior mechanical properties such as high toughness and stiffness, and for its general thermal stability. However, ... -
Physical and biogeochemical gradients and exchange processes in Nyanza Gulf and main Lake Victoria (East Africa)
(University of Waterloo, 2009-01-22)Nyanza Gulf is a large, shallow and long river-influenced embayment located in northeastern Lake Victoria. The gulf opens to the main lake through the narrow and deep Rusinga Channel, the exchange zone between the two ... -
Physical and Geochemical Characterization of Two Wetlands in the Experimental Lakes Area, North-western Ontario, Canada
(University of Waterloo, 2012-09-27)Anthropogenic disruptions in the form of hydrological alterations, such as dam construction and the associated water diversions are a cause of much upheaval to local and regional ecosystems. Lake 626 within the Experimental ... -
Physical Design for Non-relational Data Systems
(University of Waterloo, 2018-08-09)Decades of research have gone into the optimization of physical designs, query execution, and related tools for relational databases. These techniques and tools make it possible for non-expert users to make effective use ... -
The Physical Exoskeleton-User Interface: Investigating Modelling and Design of Coupling Surfaces
(University of Waterloo, 2023-07-27)The goal of Lower Limb Rehabilitation Exoskeletons is to provide active and passive support to the user for rehabilitation goals focused on the restoration of function and independence to the user. In circumstances where ... -
Physical Hydrogeology and Impact of Urbanization at the Waterloo West Side: A Groundwater Modelling Approach
(University of Waterloo, 2000)In the last few decades protection of the environment has moved to the forefront of earth science research. Sustainable development is becoming more important to rapidly growing communities throughout southern Ontario ... -
Physical Layer Approach for Securing RFID Systems
(University of Waterloo, 2013-08-15)Radio Frequency IDentification (RFID) is a contactless, automatic identification wireless technology primarily used for identifying and tracking of objects, goods and humans. RFID is not only limited to identification and ... -
Physical Layer Securities in Wireless Communication Systems
(University of Waterloo, 2014-12-10)Due to the tremendous advancement in the semiconductor and microelectronics technologies, wireless technologies have blossomed in the recent decades. The large scale deployment of wireless networks have revolutionized the ... -
Physical Layer Techniques for OFDM-Based Cognitive Radios
(University of Waterloo, 2014-02-18)Cognitive radio has recently been proposed as a promising approach for efficient utilization of radio spectrum. However, there are several challenges to be addressed across all layers of a cognitive radio system design, ... -
The Physical Mechanisms of Microbiological Cellular Transport, Storage, and Metabolism of Aromatic Hydrocarbon-Degrading Soil Microbiota
(University of Waterloo, 2021-06-01)The Monod bioreaction equation, though justified from extensive practical use, has been found to have limited mechanistic basis (Enouy, Walton, et al., 2021). To attempt to gain a biological mechanistic representation of ... -
Physical Model for Cell Selectivity of Antimicrobial Peptides
(University of Waterloo, 2013-06-20)Antimicrobial peptides (AMPs) are relatively-short chain molecules that living organisms use to defend themselves against a wide range of invading microorganisms such as bacteria and viruses. They selectively bind to and ... -
Physical Modelling and the Associated Acoustic Behaviour of Trumpets and Trombones
(University of Waterloo, 2019-09-30)Accurately modelling the production of realistic musical notes in brass instruments is no easy task. Compared to woodwind instruments, brass instruments are considerably longer and constructed with bends, valves or coils, ... -
Physical patterning of silicone hydrogel to alter surface wettability, tear lipid deposition and bacterial adhesion
(University of Waterloo, 2021-12-20)A hydrogel is defined as a three-dimensional network of polymer chains that can swell and retain a significant fraction of water inside its structure without dissolving in water. Outstanding properties of a hydrogel such ... -
Physical Properties of Shear Oriented Cocoa Butter
(University of Waterloo, 2008-01-25)Cocoa butter is a highly complex system of triacyglycerides which has been shown to crystallize in a markedly different fashion under the application of shear. A rheometer insert was developed to enable the intact extraction ... -
The Physical Underpinning of Security Proofs for Quantum Key Distribution
(University of Waterloo, 2007-09-27)The dawn of quantum technology unveils a plethora of new possibilities and challenges in the world of information technology, one of which is the quest for secure information transmission. A breakthrough in classical ... -
Physical versus behavioural emissions reductions: Quantifying and comparing emissions reduced by behaviour and emissions reduced by technology of net-zero communities
(University of Waterloo, 2024-01-04)Modern climate change research calls for more diverse and creative solutions past simply improving technology; there is not one solution to climate change. A multidisciplinary field like planning can affect both physical ... -
Physical-Layer Security in Wireless Communication Systems
(University of Waterloo, 2010-05-17)The use of wireless networks has grown significantly in contemporary times, and continues to develop further. The broadcast nature of wireless communications, however, makes them particularly vulnerable to eavesdropping. ... -
Physically-based Simulation of Tornadoes
(University of Waterloo, 2005)In this physically-based tornado simulation, the tornado-scale approach techniques are applied to simulate the tornado formation environment. The three-dimensional Navier-Stokes equations for incompressible viscous ... -
Physicochemical and Vegetative Responses of Prairie Wetlands to Local Land Covers
(University of Waterloo, 2016-09-28)Effective environmental monitoring and biological assessment initiatives require knowledge of the spatial and temporal scales at which human activities most strongly influence ecosystem conditions. I compared the environmental ...