Browsing Theses by Title
Now showing items 1747-1766 of 15594
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Characterization and Modelling of 3rd Generation Advanced High Strength Steel Automotive B-pillars from Forming to Crash
(University of Waterloo, 2022-09-26)This thesis investigates the application of 3rd Generation Advanced High-Strength Steels (3rd Gen AHSS) with ultimate tensile strengths of 980 and 1180 MPa to the forming and crash performance of an automotive B-pillar. ... -
Characterization and Modelling of Additively Manufactured Hastelloy X Parts under Quasi-Static and Cyclic Loading
(University of Waterloo, 2021-04-28)Laser powder-bed fusion (LPBF) is one of the main additive manufacturing (AM) methods, which has been proven to produce complex metallic parts with fine features. Understanding the correlation of process parameters to the ... -
Characterization and modelling of quasi-static and fatigue notch effect in AZ31B-H24 rolled sheet
(University of Waterloo, 2018-10-25)The transportation sector releases large amounts of harmful greenhouse gases into Earth’s atmosphere. Vehicle weight reduction through the use of magnesium alloys is an effective way to reduce carbon dioxide emission and ... -
Characterization and Performance Analysis of UHF RFID Tag for Environmental Sensing Applications
(University of Waterloo, 2012-06-21)Passive radio frequency identification (RFID) tag has been shown efficient in item tracking and management in the supply chain. Attracted to low weight and small size of wireless nodes, some research work was conducted to ... -
Characterization and Simulation of the Microstructure of Additively Manufactured Hastelloy X Parts with Columnar Grain Structure
(University of Waterloo, 2021-05-21)One of the well-known AM techniques is laser powder-bed fusion (LPBF), which enables engineers to benefit from the concept of “design freedom” while designing complex geometries compared to other conventional methods. This ... -
Characterization and Simulation of Warm Forming of 6xxx and 7xxx Series Aluminum Alloys
(University of Waterloo, 2017-09-12)This thesis investigates warm forming of 6000 and 7000 series aluminum alloys, namely AA6013 T6, AA7075 T6 and a developmental 7000 series alloy (designated AA70XX T76), including characterization and validation of the ... -
Characterization and Size Optimization of Additively Manufactured Flexible Piezoresistive Sensors for Vibration Strain Sensing
(University of Waterloo, 2021-12-21)Flexible piezoresistive strain sensors have promising applications in areas such as wearables and soft robotics. For sensing dynamic strains, such as a runner’s gait or a slipping object held by a robotic gripper, these ... -
Characterization and Theoretical Study of Mid-infrared Quantum Cascade Lasers
(University of Waterloo, 2019-05-07)The technology and performance of quantum cascade lasers has rapidly developed since it was firstly unveiled in 1994. This type of laser has a feasible design, micro meter size and potential for emission of long wavelength ... -
Characterization and Through Process Modelling of Large Strain Phenomena for Aluminum Alloys at Room and Elevated Temperatures
(University of Waterloo, 2017-02-16)The objective of this research is to model and analyze large strain problems (rolling, hot compression) in FCC polycrystals. In the first part of this research, a rate-dependent crystal plasticity based Element Free Galerkin ... -
Characterization and Tracking of Contaminants in Oil Tar Sediments and Assessment of Water Treatment Technologies for Their Removal
(University of Waterloo, 2011-04-25)Between 1920 and 1950 an oil gasification plant operated on a property adjacent to Kettle Creek about 0.2 km from the mouth of Port Stanley harbour on Lake Erie, Ontario, Canada. Oil tar wastes from the gasification plant ... -
Characterization of a Live Fire Training Simulator for use in the Canadian Fire Service
(University of Waterloo, 2020-06-17)This thesis reports on the design, instrumentation, testing, and characterization of a live fire training simulator for use in the Canadian Fire Service. The importance of fire training, including live fire training ... -
Characterization of a novel truncated isoform of murine AGPAT4 arising from predicted splice variants
(University of Waterloo, 2021-06-02)The acylglycerophosphate acyltransferase (AGPAT)/lysophosphatidic acid acyltransferase (LPAAT) family of enzymes is responsible for the conversion of lysophosphatidic acid (LPA) to phosphatidic acid (PA), a precursor of ... -
Characterization of a novel weak cation-exchange hydrogel membrane through the separation of lysozyme from egg white
(University of Waterloo, 2012-09-07)Membrane chromatography was investigated as an alternative method to packed-bed chromatography for protein recovery. The purification of lysozyme from egg white with Natrix adseptTM weak cation-exchange membranes was ... -
Characterization of acid phase anaerobic digestion of municipal sludges to improve biological nutrient removal processes
(University of Waterloo, 2017-10-24)Enhanced biological phosphorus removal (EBPR) can improve the balance sheet for waste water treatment plants. However, for phosphate accumulating organisms (PAOs) to work efficiently, there needs to be a readily biodegradable ... -
Characterization of Active Cellulolytic Consortia from Arctic Tundra
(University of Waterloo, 2011-05-20)The consortia of microorganisms responsible for the hydrolysis of cellulose in situ are at present poorly characterized. Nonetheless, the importance of these communities is underscored by their capacity for converting ... -
CHARACTERIZATION OF AHR SIGNALING AND THE IMPACT OF POLYCHLORINATED BIPHENYLS ON THE ADAPTIVE RESPONSES TO STRESS IN FISH
(University of Waterloo, 2007-09-13)Persistent organic pollutants (POPs), including polychlorinated biphenyls (PCBs) are widespread in aquatic systems. These toxicants bioaccumulate in the tissues of aquatic organisms, especially fish as they occupy a position ... -
Characterization of Alcohol Dehydrogenases from Hyperthermus butylicus
(University of Waterloo, 2016-01-22)Hyperthermophiles grow optimally at 80 oC and above, and many of them use carbohydrates and peptides for their growth. Hyperthermus butylicus is a peptide-fermenting hyperthermophilic archaeon producing 1-butanol as an ... -
Characterization of Alternative Promoters to Stagger and Control Multiple Gene Expression and Protein Production in the Baculovirus-Insect Cell System
(University of Waterloo, 2014-11-05)The baculovirus-insect cell system is one of the most widely used systems for recombinant protein production. The ease of handling insect cells and their ability to produce mammalian-like post-translational modifications, ... -
Characterization of Anaerobic Membrane Bioreactors (AnMBR) Treating Municipal Wastewater
(University of Waterloo, 2015-02-18)The study investigated the impact of solids retention time (SRT), hydraulic retention time (HRT) and the addition of FeCl3 on bioprocess and membrane performance of anaerobic membrane bioreactor (AnMBR) treating authentic ... -
Characterization of anaerobic membrane digesters for stabilization of waste activated sludge
(University of Waterloo, 2010-10-12)Anaerobic membrane bioreactors may provide a sustainable technological solution for digestion of waste activated sludge due to their capacity to achieve substantial volatile solids (VS) destruction and positive energy ...