Browsing Electrical and Computer Engineering by Title
Now showing items 1384-1403 of 1944
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A PHENOMENOLOGICAL MODEL OF SHAPE MEMORY ALLOYS INCLUDING TIME-VARYING STRESS
(University of Waterloo, 2007-08-22)Shape memory alloys (SMAs) are metallic materials, which have two main stable crystalline phases: austenite, a high temperature phase and martensite, a low temperature phase. Austenite and martensite each have unique ... -
Phosphor Coated UV-Responsive CCD Image Sensors
(University of Waterloo, 2002)Typical CCD image sensors are not sensitive to Ultra-Violet (UV) radiation, because the UV photons have a penetration depth of 2nm in the ~1µm thick polysilicon gate material. An inorganic phosphor coating was ... -
Photon Quantum Noise Limited Pixel and Array architectures in a-Si Technology for Large Area Digital Imaging Applications
(University of Waterloo, 2011-08-31)A Voltage Controlled Oscillator (VCO) based pixel and array architecture is reported using amorphous silicon (a-Si) technology for large area digital imaging applications. The objectives of this research are to (a) demonstrate ... -
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, ... -
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. ... -
Physics Based Virtual Source Compact Model of Gallium-Nitride High Electron Mobility Transistors
(University of Waterloo, 2017-04-19)Gallium Nitride (GaN) based high electron mobility transistors (HEMTs) outperform Gallium Arsenide (GaAs) and silicon based transistors for radio frequency (RF) applications in terms of output power and efficiency due to ... -
Pixel Circuits and Driving Schemes for Active-Matrix Organic Light-Emitting Diode Displays
(University of Waterloo, 2007-05-11)Rapid progress over the last decade on thin film transistor (TFT) active matrix organic light emitting (AMOLED) displays led to the emergence of high-performance, low-power, low-cost flat panel displays. Despite the ... -
Pixel-less and Pixel-lated Inorganic/Organic Hybrid Infrared Imaging Upconversion Devices
(University of Waterloo, 2013-01-23)Nowadays, the industrial standard for infrared imaging systems is to interconnect an infrared photodetector array with a silicon-based read-out-integrated circuit pixel by pixel through existing indium bumping technology ... -
Planning and Operation Framework of Smart Distributed Energy Resources in Emerging Distribution Systems
(University of Waterloo, 2018-08-10)Smart grid technologies provoke a major paradigm shift in how power systems are planned and operated. The transition to a smarter system is happening gradually; however, researchers has reported that this transition is ... -
Planning for Small Cells in a Cellular Network
(University of Waterloo, 2014-04-03)In this thesis, we analyze the effect of deploying small cells on the performance of a network comprising several macro cells. We identify potential locations for low-power base-stations based on the coverage patterns of ... -
Planning Model for Implementing Electric Vehicle Charging Infrastructure in Distribution System
(University of Waterloo, 2016-08-31)Plug-in electric vehicles (PEVs) are growing in popularity in developed countries in an attempt to overcome the problems of pollution, depleting natural oil and fossil fuel reserves and rising petrol costs. In addition, ... -
Planning of Multi-Microgrids Considering Uncertainties and Spatial Characteristics
(University of Waterloo, 2023-03-13)Global warming is a serious issue that is being tackled from various fronts, one of them is the decarbonization of electrical energy systems, which may be addressed by introducing clean Distributed Energy Sources (DERs) ... -
Planning, Operation and Control of Battery Energy Storage Systems based on Repurposed Electric Vehicle Batteries
(University of Waterloo, 2020-09-25)Battery Energy Storage Systems (BESSs) play a pivotal role in facilitating the grid integration of renewable energy resources and mitigating the impact of high penetration of Electric Vehicles (EVs). The increasing number ... -
Plasmonic Superconducting Single Photon Detector
(University of Waterloo, 2013-09-26)A theoretical model with experimental verification is presented to enhance the quantum efficiency of a superconducting single-photon detector without increasing the length or thickness of the active element. The basic ... -
A Platform for Assessing the Efficiency of Distributed Access Enforcement in Role Based Access Control (RBAC) and its Validation
(University of Waterloo, 2011-01-19)We consider the distributed access enforcement problem for Role-Based Access Control (RBAC) systems. Such enforcement has become important with RBAC's increasing adoption, and the proliferation of data that needs to be ... -
A Platform for Generating Anomalous Traces Under Cooperative Driving Scenarios
(University of Waterloo, 2018-08-03)As we allow more critical decisions to be made by software, it becomes increasingly necessary to ensure the decisions made are correct. One approach is to monitor the software for signs of an anomaly. The approach is an ... -
A Platform for Robot-Assisted Intracardiac Catheter Navigation
(University of Waterloo, 2009-05-05)Steerable catheters are routinely deployed in the treatment of cardiac arrhythmias. During invasive electrophysiology studies, the catheter handle is manipulated by an interventionalist to guide the catheter's distal ... -
Pluggable Properties for Program Understanding: Ontic Type Checking and Inference
(University of Waterloo, 2018-04-26)Pluggable type systems is a powerful approach to add additional information on types, which can facilitate the understanding of programs. This thesis presents our work on three pluggable type systems for helping both ...