Browsing Systems Design Engineering by Supervisor "Yeow, John"
Now showing items 1-15 of 15
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Antibacterial Porous Polymeric Monolith for On-Chip Cell Lysis
(University of Waterloo, 2015-12-15)The application of porous polymeric monolith (PPM) column as an e effective tool for bacterial cell lysis is demonstrated in this thesis. By exploiting the expansive surface area and controllable pore size inalienable to ... -
Capacitive Micromachined Ultrasonic Transducers (CMUTs) for Humidity Sensing
(University of Waterloo, 2019-09-11)In the last two decades, capacitive micromachined ultrasonic transducers (CMUTs) have proven themselves to be promising for various ultrasound imaging and chemical sensing applications. Although holding many benefits for ... -
Carbon nanotube field emitter array and its application to novel X-ray systems
(University of Waterloo, 2018-06-15)With the emergence of ever more demanding X-ray imaging applications, including radiotherapy, radiography, computed tomography and tomosynthesis, there is a tendency to use field emission (FE) to take the place of thermionic ... -
Compensated Row-Column Ultrasound Imaging System
(University of Waterloo, 2020-03-12)Ultrasound imaging is a valuable tool in many applications ranging from material science to medical imaging. While 2-D ultrasound imaging is more commonly used, 3-D ultrasound imaging offers unique opportunities that can ... -
Development of Triboelectric Devices for Self-powered Sensing And Energy Harvesting Applications
(University of Waterloo, 2019-09-18)Due to the bulky size and limited lifespan of batteries, remote charging and energy har- vesting from the environment are becoming two trends to power miniaturized electronics. Tri- boelectric nanogenerator (TENG) is an ... -
Fabrication and Evaluation of Polymer Nanocomposites for Space Radiation Shielding Application
(University of Waterloo, 2022-09-27)Protecting astronauts and space crow from hazardous radiation is critical in space missions. Conventional metallic material such as aluminum (Al) and its alloys have been widely used for shielding the harmful space radiations, ... -
Fabrication of Capacitive Micromachined Ultrasonic Transducers based on Adhesive Wafer Bonding
(University of Waterloo, 2017-01-12)Capacitive micromachined ultrasonic transducers (CMUTs) can be used for medical imaging, non-destructive testing or medical treatment applications. It can also be used as gravimetric sensors for gas sensing or immersion ... -
A Feasibility Study of Micromachined Ultrasonic Transducers Functionalized for Ethanol Dectection
(University of Waterloo, 2017-08-01)The chemical sensing system plays an important role in medical and environmental monitoring. Gases exhaled by humans include nitrogen, oxygen, water vapor, carbon dioxide and volatile organic compounds (VOCs). The VOCs are ... -
Nanocomposite Based Infrared Photothermoelectric Detectors
(University of Waterloo, 2023-04-24)In the last decade, photothermoelectric (PTE) detectors that combine photothermal and thermoelectric conversion have been demonstrated for infrared and terahertz tracking. They are advantageous in terms of facile fabrication, ... -
New membrane technologies for dialysis
(University of Waterloo, 2016-12-15)Hemodialysis, developed in 1960s, has served as a treatment for patients with end stage renal disease. However, the 5 year mortality rate of hemodialysis patients is 65%. Research shows that some protein-bound toxins, ... -
Polymer Based Nanocomposites as Multifunctional Structure for Space Radiation Shielding: A Study of Nanomaterial Fabrications and Evaluations
(University of Waterloo, 2018-06-18)Radiation shielding in space missions is critical in order to protect astronauts and other payloads from radiation damage. Low atomic-number materials such as hydrogen are proved to be efficient in shielding ionizing ... -
Row-Column Capacitive Micromachined Ultrasonic Transducers for Medical Imaging
(University of Waterloo, 2016-12-14)Ultrasound imaging plays an important role in modern medical diagnosis. Recent progress in real-time 3-D ultrasound imaging can offer critical information such as the accurate estimation of organ, cyst, or tumour volumes. ... -
Self-Powered Infrared Detection in Low-Dimensional Carbon Assemblies
(University of Waterloo, 2019-09-23)Room-temperature mid-infrared photodetection meet upcoming demands including real-time health condition monitoring, low-cost industrial inspection and distributive sensing for Internet-of-Things. Photo-thermoelectric (PTE) ... -
Study of Various Detection Mechanisms for Photoacoustic Imaging
(University of Waterloo, 2020-09-01)Photoacoustic imaging (PAI) is a developing imaging technique that has been researched for several clinical applications including oncology, neurology, dermatology and ophthalmology. PAI combines the benefits of pure optical ... -
Variations on Acoustophoretic Microchannels: From the Facile to the Highly Capable
(University of Waterloo, 2018-05-31)The lab-on-a-chip toolkit is replete with techniques for microparticle manipulation. The use of ultrasonic waves to impart forces on particles, referred to as acoustophoresis, is one particularly powerful yet gentle option. ...