Browsing Electronic Theses and Dissertations by Title
Now showing items 1320-1339 of 1478
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Study on heat transfer to supercritical water in application to SMRs
(2021-12-01)The SuperSafe Reactor (SSR), a small modular reactor (SMR) concept with a supercritical water coolant, was subjected to a thermalhydraulic analysis and an economic analysis of its Levelized Unit of Energy Cost (LUEC). ... -
Study on linking a SuperCritical water-cooled nuclear reactor to a hydrogen production facility
(2011-07-01)The SuperCritical Water-cooled nuclear Reactor (SCWR) is one of six Generation-IV nuclear-reactor concepts currently being designed. It will operate at pressures of 25 MPa and temperatures up to 625°C. These operating ... -
Study on specifics of thermalhydraulics and neutronics of pressure-channel supercritical water-cooled reactors (SCWRs)
(2017-08-01)A group of countries has initiated an international collaboration to develop a next generation (i.e., Generation IV) of nuclear reactors. Chosen as one of the six Generation‒IV nuclear-reactor concepts, the SCWRs are ... -
Study on supercritical fluids in an intermediate heat exchanger for an SCWR hydrogen cogeneration system
(2015-12-01)SuperCritical Water-cooled Reactors (SCWRs) are one of six Generation-IV nuclear reactor concepts under development worldwide. SCWRs benefit from an increase in thermal efficiency due to the reactor coolant operating above ... -
A study on the impact of global replacement of fossil fuel based electricity generation, transportation and domestic heating with nuclear generated electricity using a modified VENSIM DICE model
(2021-08-01)While much debated across current media, electricity generation using nuclear energy is proposed as one of the means of addressing the global negative impacts of climate change – notably ongoing accumulation of CO2 in the ... -
Subgraph classification through neighborhood pooling
(2023-06-01)Subgraph classification is an emerging field in graph representation learning where the task is to classify a group of nodes (i.e., a subgraph) within a graph. Graph neural networks (GNNs) are the de facto solution for ... -
Sum-rate maximization for active channels
(2013-04-01)In conventional wireless channel models, there is no control on the gains of different subchannels. In such channels, the transmitted signal undergoes attenuation and phase shift and is subject to multi-path propagation ... -
Sum-rate maximization for two-way active channel with unequal subchannel noise powers
(2016-06-01)Wireless parallel channels refer to certain wireless links, where the information is conveyed from a source to a destination through a set of parallel orthogonal subchannels. In such channels, the transmitted signals undergo ... -
Sum-rate maximization for two-way active channels.
(2014-11-01)In this thesis, the term passive channel refers to the conventional parallel wireless channel model, where there is no control over the gain of each individual subchannel. We de ne an active channel as a parallel channel ... -
Sum-rate optimal network beamforming and power allocation for single-carrier asynchronous bidirectional relay network
(2015-08-01)We study the problem of sum-rate maximization, under a total transmit power budget, for an asynchronous single-carrier bidirectional (two-way) network. The network consists of two single-antenna transceivers which wish to ... -
A supervised machine learning-based framework to detect low-level fault injections in software systems
(2022-08-01)Fault injection attacks inject faults into system components, inducing abnormal software behavior. Software vulnerability analysis cannot prevent new attack vectors without software modifications. Attack detection methods ... -
Supporting Durham Catholic School District teachers in implementing movement integration: understanding and addressing the barriers through teacher coaching
(2020-12-01)Movement integration (MI) is short bursts of physical activity (PA) within classrooms during school hours. Despite cited benefits of MI, it is not well utilized by teachers. MI barriers include lack of time and confidence, ... -
Supporting student success with machine learning and visual analytics
(2019-08-01)Post secondary institutions have a wealth of student data at their disposal. This data has recently been used to explore a problem that has been prevalent in the education domain for decades. Student retention is a complex ... -
A survey of algebraic algorithms in computerized tomography
(2010-08-01)X-ray computed tomography (CT) is a medical imaging framework. It takes measured projections of X-rays through two-dimensional cross-sections of an object from multiple angles and incorporates algorithms in building a ... -
Synthesis and characterization of nanostructured catalysts for photovoltaic applications
(2013-07-01)The objective of this project was to investigate the effect of the morphology of titanium dioxide (TiO2) nanoparticles on the electron transport properties and light harvesting potential in a dye sensitized solar cell ... -
Synthesis and characterization of Pt/TiO2/C composite catalysts for fuel cells prepared using a glucose modifier
(2017-03-01)Catalysts in the electrodes of polymer exchange membrane fuel cells (PEMFCs) serve a critical function in reactions which can be used to generate electrical energy from chemical fuels. Pt nanoparticles are commonly dispersed ... -
Synthesis and characterization of purely sulphonated and composite membranes for high temperature fuel cells
(2010-04-01)Fuel cell technologies have developed high interest due to their ability to provide energy in an environmentally friendly method. Proton exchange membrane fuel cells (PEM-FCs) require a PEM for use, where the most accepted ... -
Synthesis and in vitro assessment of chemically modified siRNAs targeting BCL2 that contain 2'-ribose and triazole-linked backbone modifications
(2015-08-01)Short interfering RNAs (siRNAs) are biomolecules used for post-transcriptional gene regulation, and therefore hold promise as a future therapeutic by silencing gene expression of overexpressed deleterious genes. Chemically ... -
The synthesis and in vitro evaluation of chemically modified siRNAs that contain internal azobenzene derivative spacers for selective and tunable photocontrol of activity
(2017-08-01)Short interfering RNAs (siRNAs) are biopolymers that are used as post-transcriptional gene regulators and as a natural endogenous defense against attack from viruses. These molecules hold a great deal of interest as ... -
The synthesis and in vitro evaluation of short interfering RNA containing triazole functionalized sphingolipid-based derivatives
(2021-12-01)RNA Interference (RNAi) is a natural cellular process that silences the expression of a target gene in a sequence-specific manner by mediating targeted mRNA degradation. One of the main challenges in RNAi research is ...