Browsing Theses by Title
Now showing items 6678-6697 of 15633
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High Performance WLAN Using Smart Antenna
(University of Waterloo, 2007-09-25)The need for higher data rates in WLANs boosts drastically because tremendous consumer interest in emerging multimedia applications, such as HDTV, has been increased. Currently, the IEEE 802.11a/b/g WLANs provide a limited ... -
High Performance, Low Cost Lateral Metal-Semiconductor-Metal Photodetector for Large Area Indirect X-Ray Imaging
(University of Waterloo, 2013-10-28)The most promising technology for radiography is active matrix flat panel imaging systems (AMFPI). However, AMFPI systems are relatively expensive in comparison with conventional computed radiography (CR) systems. Therefore ... -
High Power Analysis of Filters and Diplexers
(University of Waterloo, 2013-01-11)The ever-increasing popularity and usage of communication devices has resulted in power density becoming more demanding due to crowding of frequency spectrums and narrowing of bandwidths. Consequently, the power-handling ... -
High Productivity Milling of Calcium Polyphosphate
(University of Waterloo, 2012-04-30)The main objective of this thesis is to further reduce the machining cycle time for producing Calcium Polyphosphate (CPP) implant constructs. To achieve this, the impregnation of the CPP lattice with various polymers is ... -
High Q Tunable Filters
(University of Waterloo, 2012-09-28)Microwave tunable filters are key components in radar, satellite, wireless, and various dynamic communication systems. Compared to a traditional filter, a tunable filter is able to dynamically pass the required signal and ... -
High Rate, Large Area Laser-assisted Chemical Vapor Deposition of Nickel from Nickel Carbonyl
(University of Waterloo, 2009-05-01)High-power diode lasers (HPDL) are being increasingly used in industrial applications. Deposition of nickel from nickel carbonyl (Ni(CO)4) precursor by laser-induced chemical vapor deposition (CVD) was studied with emphasis ... -
High Resolution Geophysical Characterization of a Gasoline Release into a Sand Column
(University of Waterloo, 2008-09-26)A controlled column experiment was conducted to investigate the geophysical response of gasoline spills into the partially saturated sand column. The column was 0.61 diameter (ID) and 2 m high cylindrical polyvinyl chloride, ... -
High Resolution Investigation of Thermal Spatial Variability of Two Cobble Bed Rivers, and the Correlation to Salmonid Spawning Preferences
(University of Waterloo, 2016-01-22)This thesis introduces and demonstrates the application of a recently designed mobile streambed temperature measurement system. The apparatus, called the High Resolution Temperature Mapping Device (henceforth HI-RES TMD) ... -
HIGH RESOLUTION MICROWAVE SPECTROSCOPY OF ULTRA COLD RYDBERG ATOMS AS A PROBE OF ELECTRIC AND MAGNETIC FIELDS
(University of Waterloo, 2003)In highly excited Rydberg atoms, the excited electron is in a large, loosely bound orbit. Hence, in contrast with the ground states, the Rydberg states are very sensitive to external electric field and can be ionized in ... -
High Resolution Packer Testing in Fractured Sedimentary Rock
(University of Waterloo, 2009-09-30)Packer tests in boreholes in fractured rock involving injection or withdrawal of water in borehole segments have been standard practice in bedrock hydraulic investigations pertaining to geotechnical and water resource ... -
High resolution simulations of mode-2 internal waves: transport, shoaling, and the influence of rotation
(University of Waterloo, 2018-08-23)Internal waves are a universal feature in stratified flows. Of particular interest are Internal Solitary and Solitary-like Waves (ISWs) which may persist for long periods of time and travel great distances. In the ocean, ... -
High Resolution/Wideband on-Chip Phase-Shifting
(University of Waterloo, 2011-08-17)A new active LO phase shifter was introduced and implemented in a 2x2 wide band MIMO receiver. The chip was designed with STMicroelectronics 90nm technology. The main advantages of the proposed phase shifter over previous ... -
High Strain Rate Behaviour of Cervical Spine Segments in Flexion and Extension
(University of Waterloo, 2012-09-28)Cervical Spine injuries are a common occurrence during motor vehicle accidents, and they represent a significant economic cost to society. Numerical Finite Element (FE) models have been formulated to investigate the ... -
High Strain Rate Behaviour of Hot Formed Boron Steel with Tailored Properties
(University of Waterloo, 2013-01-21)In an automotive crash event, hot stamped, die quenched martensitic structural components have been shown to provide excellent intrusion resistance. These alloys exhibit only limited ductility, however, which may limit the ... -
High Strain Rate Characterization of Advanced High Strength Steels
(University of Waterloo, 2006)The current research has considered the characterization of the high strain rate constitutive response of three steels: a drawing quality steel (DDQ), a high strength low alloy steel (HSLA350), and a dual phase steel ... -
High Surface Area Cu/γ-Al2O3 Catalyst Synthesized by Reverse Microemulsion Method for CO2 Conversion via Reverse Water Gas Shift
(University of Waterloo, 2021-08-30)Nowadays, catalytic conversion of CO2 has gained great attention due to environmental issues caused by CO2 emissions around the world. CO2 can be considered as a source of carbon with hydrogenation (using renewable hydrogen) ... -
High Temperature Co-Sintering for Metal Supported-Solid Oxide Fuel Cell Fabrication
(University of Waterloo, 2019-01-23)Metal supported-solid oxide fuel cells (MS-SOFC) are third generation solid oxide fuel cells (SOFC). In these cells the primary support is a porous metal upon which the active cell layers (anode, electrolyte, and cathode) ... -
High Temperature DC SQUID Fabrication on Bicrystal YBCO Thin Films
(University of Waterloo, 2012-04-26)After the discovery of high temperature superconductors, different types of Josephson junctions were investigated and thus a new path is created to obtain high temperature superconducting quantum interface devices(SQUID). ... -
High Temperature Deformation Behaviour of an Al-Mg-Si-Cu Alloy and Its Relation to the Microstructural Characteristics
(University of Waterloo, 2009-04-24)The microstructural evolution and mechanical properties at elevated temperatures of a recently fabricated fine-grained AA6xxx aluminium sheet were evaluated and compared to the commercially fabricated sheet of the same ... -
High Temperature Forging of AZ31B Magnesium Alloy
(University of Waterloo, 2016-08-25)Isothermal uniaxial compression tests were conducted on AZ31B magnesium alloy with the intention of applying the findings to an industrial forging operation. Given the poor workability of magnesium at low temperatures, ...