Browsing Electronic Theses and Dissertations by Title
Now showing items 454-473 of 1478
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Development of waste management systems: applications of Durham Region
(2021-08-01)This thesis aims to reduce environmental impacts and increase overall efficiencies of domestic waste management systems by proposing case studies for Durham Region. Case study 1 integrates an anaerobic digestion facility ... -
Development, analysis and life cycle assessment of integrated systems for hydrogen production based on the copper-chlorine (Cu-Cl) cycle
(2013-08-01)The energy carrier hydrogen is expected to help solve many energy challenges we are facing today. Thermochemical water splitting using a Cu-Cl cycle, linked with renewable energy sources and/or the Generation IV nuclear ... -
Development, analysis and performance assessment of net zero energy house systems.
(2014-08-01)Net zero energy buildings have captured the attention of many researchers and governments due to high energy consumption by traditional buildings. The design stage of a net zero energy house is the most crucial and cost ... -
Development, optimization and simulation of hybrid electric heavy duty truck with self-propelled trailer.
(2014-11-01)The hybrid electric drivetrain has significant ability to reduce fuel consumption and increase the efficiency. The application of this type of drivetrain has been investigated for different vehicle models. The hybridization ... -
Digital privacy in the classroom: an analysis of the intent and realization of Ontario policy in context
(2017-08-01)Digital tools are becoming more commonplace within the K-12 classroom, but with the renewed opportunities come associated risks for student privacy. Digital tool use creates a digital footprint of the user which may contain ... -
Direct Brønsted acid-catalyzed functionalization of benzhydryl alcohols and 2-ethoxytetrahydrofuran using potassium trifluoroborate salts
(2016-06-01)Metal-free transformations of organotrifluoroborates are advantageous since they avoid using frequently expensive and sensitive transition metals. Lewis acid-catalyzed reactions involving organotrifluoroborates have emerged ... -
A directional preference ETX measure for the collection tree protocol in mobile sensor networks
(2018-01-01)There has been a growing interest in Wireless Sensor Networks (WSN) that utilizes mobile nodes for various purposes. These mobile wireless sensor networks tend to suffer from constant link breakages mainly caused by connected ... -
Discovery of trend dependencies over time-series
(2023-11-01)We improve constraint-based data quality using trend dependency (TD) discovery, extending existing order dependencies (ODs) to allow variations and exceptions. Unlike ODs, TDs capture approximate functional mappings between ... -
Discrete optimization of upgrade scheduling
(2022-08-01)A primary objective of the mission to meet climate change goals of reducing greenhouse gas (GHG) emissions is to transition from fossil fuels to zero-emission energy. Fossil fuel production and transportation account for ... -
DistGALO: Distributed system for query problem determination
(2019-12-01)Query optimization is a quintessential element of modern Database Management Systems(DBMSs). Compile-time driven estimates and heuristics aid the compiler in selecting what is deemed the lowest cost Access Plan for a given ... -
Distributed policy-based management framework for wireless sensor networks.
(2014-06-01)Policy-Based Management Systems (PBMS) are becoming a critical component of any information technology environment, due to their ability to abstract hardware complexity from their users. Policy-based systems exist in such ... -
DL-based defense against polymorphic network attacks
(2024-01-01)Network security is of vital importance in our world dominated by internet systems. These systems are vulnerable to large-scale rapidly evolving attacks by sophisticated cyber attackers who can have an upper edge over the ... -
Do extroverts create stronger passwords?
(2018-04-01)We investigate the relationship between personality types and the strength of created and selected passwords. For this purpose, we conducted an experiment on Amazon’s Mechanical Turk, with 510 participants. Participants ... -
Do university students who experience food insecurity report psychological distress?
(2018-08-01)Introduction: Poor mental health is a substantial problem for university students and universities. Little is understood about the association between food insecurity and psychological distress in this population. Purposes: ... -
Does mental context reinstatement mitigate Retrieval Induced Forgetting in eyewitnesses?
(2020-08-01)The current study sought to examine Retrieval Induced Forgetting (RIF) as it may occur within an investigative setting, while also assessing Mental Context Reinstatement (MCR) as a tool to mitigate this forgetting. Various ... -
Dosimetric characterization of a miniature x-ray source for biophysics studies
(2015-07-01)Tritium is a low energy beta emitter that is found in abundance at CANDU nuclear power plants and is a cause of concern since it accounts for roughly thirty three percent of the total occupational exposure of nuclear ... -
Dual-task interference and its influence on deception detection and memory
(2023-08-01)Using a dual-task paradigm, I examined how engaging in executive function tasks impacted deception detection and memory performance. University students (N = 185) were randomly assigned to detect deception while also ... -
Durham Region healthy sex youthality project: youth's perspectives of sexual health needs in Durham Region
(2012-07-01)According to Durham Region Public Health Department, 40% of youth, aged 15-19 years, living in Durham Region said that they had engaged in sexual intercourse in the last year, with 570 youth becoming pregnant. In Durham ... -
Dynamic accident sequence analysis using dynamic flowgraph method and Markov/cell-to-cell mapping technique
(2018-07-01)In the recent years, numerous concerns have been raised regarding the capabilities and adequacy of classical probabilistic safety assessment (PSA) techniques (fault/event tree) to account for dynamic system interactions ... -
Dynamic flowgraph methodology for reliability modelling of networked control systems: with application to a nuclear-based hydrogen production plant
(2009-12-01)The use of communication networks in digital control systems introduces stability and reliability concerns. Standard reliability and safety assessment methods need further modification to accommodate the issue in the ...