Browsing Electronic Theses and Dissertations by Title
Now showing items 1407-1426 of 1478
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Transformer-based models for answer extraction in text-based question/answering
(2023-04-01)The success of transformer-based language models has led to a surge of research in various natural language processing tasks, among which extractive question-answering/answer span detection, has received considerable ... -
Transient heat transfer analysis of heat exchangers in a Marnoch Heat Engine
(2009-12-01)The Marnoch heat engine (MHE) is a new type of power generation device that is under research and development at the University of Ontario Institute of Technology. In this thesis, the transient heat transfer behaviour of ... -
Transmutation rates in the annulus gas of pressure tube water reactors
(2011-07-01)CANDU (CANada Deuterium Uranium) reactor utilizes Pressure Tube (PT) fuel channel design and heavy water as a coolant. Fuel channel annulus gas acts as an insulator to minimize heat losses from the coolant to the moderator. ... -
Transport-theory-equivalent diffusion coefficients for node-homogenized neutron diffusion problems in CANDU lattices
(2010-04-01)Calculation of the neutron flux in a nuclear reactor core is ideally performed by solving the neutron transport equation for a detailed-geometry model using several tens of energy groups. However, performing such detailed ... -
Tribological capabilities of carbon based nano additives in liquid and semi-liquid lubricants
(2019-04-01)The growing population, the environmental challenges and limitations of nonrenewable resources have enforced researchers to improve the energy efficiency and reduce energy wastage in all industrial sectors including ... -
Triton: a domain specific language for cyber-physical systems
(2021-04-01)The design of cyber-physical systems is non-trivial and often filled with tedious, error-prone tasks that could be represented in a better way. Engineers often work with low-level languages such as C and C++, with real-time ... -
Trust-based framework for information sharing in health care
(2016-10-01)The use of information systems in the health care area specifically in Mobile health care, can result in delivering high quality and efficient patient care. At the same time, using electronic systems for sharing information ... -
Tuberculosis screening in a cohort of individuals diagnosed with HIV in Ontario during 2001 to 2009
(2012-04-01)Tuberculosis (TB) is a preventable and a treatable disease yet it is considered to be one of the most common infections seen in HIV. People who are infected with HIV are 20 times more likely to develop TB than those without ... -
Tunable compact microwave multiplexers based on substrate integrated waveguide
(2021-05-01)Microwave multiplexers and diplexers are widely used in communication systems. This thesis presents a compact low-profile hybrid-coupled filter module (HCFM) implemented using substrate integrated waveguide (SIW). Compared ... -
Ultracapacitor characterization using a novel dynamic parameter identification modeling technique for electric transportation applications
(2015-09-01)Ultracapacitors (UCs), also known as Supercapacitors or double layer capacitors, are the promising technology devices used for storing energy in the field of energy storage systems. These ultra-capacitors, being a low ... -
Ultrasonic array imaging for multi-layer materials in non-destructive testing applications.
(2014-12-01)Ultrasonic imaging for a multi-layer medium is a common challenge in seismology, medical diagnosis, and non-destructive testing. One application for multi-layer imaging is ultrasonic immersion test where the material ... -
Uncertainty quantification for safety verification applications in nuclear power plants
(2016-11-01)There is an increasing interest in computational reactor safety analysis to systematically replace the conservative calculations by best estimate calculations augmented by quantitative uncertainty analysis methods. This ... -
Understanding and predicting method-level source code changes using commit history data
(2016-10-01)Software development and software maintenance require a large amount of source code changes to be made to a software repositories. Any change to a repository can introduce new resource needs which will cost more time and ... -
Understanding factors that influence college faculty in deciding to adopt digital technologies in their practice.
(2014-08-01)College faculty in Ontario are using a variety of digital technologies, at differing levels, in their teaching and learning practices. College administrators are looking to faculty to help meet the challenges associated ... -
Understanding minor attracted persons
(2023-10-01)Minor attracted persons (MAPs) are a group of understudied individuals who acknowledge a sexual interest in children but who may never have offended against a child. They are often regarded the same as individuals who have ... -
Understanding personal support workers and their role in Ontario.
(2013-09-01)There are an estimated 90,000 personal support workers (PSWs) in Ontario providing assistance with daily activities for individuals in hospitals, long-term care facilities, adult day programs and home care yet little is ... -
Understanding the carbon morphology in sulfonated-silica ceramic carbon electrodes for the PEM fuel cell device
(2020-03-01)Using hydrogen and oxygen gas, the fuel cell is a device that converts chemical energy into electrical energy. Particularly, the proton exchange membrane fuel cell, has multiple components, all that are consistently being ... -
Understanding the role of aquatic plants in stormwater management pond performance in Oshawa, Ontario, Canada
(2020-05-01)Stormwater Management Ponds (SMPs) are engineered to receive, store, and treat stormwater runoff before it enters receiving waters in urbanizing landscapes. While these systems are not considered natural, they are typically ... -
Understanding the usage of mental health apps among post-secondary students
(2023-12-01)University is a period where adolescents are exposed to novel stressors such as extensive academic overwork, familial pressure, financial concerns, and substantial studying, which can lead to psychological disorders such ... -
Unified processing of natural language and relational data
(2022-09-01)This work outlines a method for performing natural language tasks as part of a relational framework. Utilizing features of PostgreSQL as a relational database and its extensibility to allow for word embedding without leaving ...