electronic theses and dissertations from 2009: recent submissions
now showing items 221-240 of 1627
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new insights into modern human behaviour at liang bua (flores, indonesia) based on the temporal distribution of pottery and mollusks during the past 5,000 years
(2022)in addition to preserving a rich archaeological record spanning from ~190 thousand years ago (ka) until the terminal pleistocene, liang bua (flores, indonesia) also preserves a rich and relatively complete holocene ... -
nonlinear mathematical and numerical modeling of the effect of temperature on membrane pore size
(2022)due to the growth of the global population, water stress has risen sharply. however, water stress in high latitudes is not only due to population growth but also to low local temperatures. numerous studies have shown ... -
the influence of temperature on dynamic membrane structure
(2022)this study investigates the influences of cold source-water temperatures and warm temperature recoveries on the dynamic changes of membrane structure. the morphology of membrane pores on the membrane surface was firstly ... -
a numerical simulation study on the interaction of particles with rough surface and soft structures in suspension systems
(2022)particle interactions in complex colloidal systems are essential in a variety of traditional and emerging industrial processes. this thesis applied the extended derjaguin-landau-verwey-overbeek (xdlvo) theory to calculate ... -
experimental fire testing of damaged glulam beam connections retrofitted using self-tapping screws
(2022)during the lifespan of timber buildings, structural members may exhibit different defects and/or failures. this may include splits that develop due to shrinkage because of changes in the moisture content of wood and/or ... -
geomechanical behaviour of fibre-reinforced cemented paste backfill under cyclic loading conditions
(2022)cemented paste backfill (cpb) is considering a promising mine backfilling technology with several technical, environmental, and economic benefits for the underground mining operation. after placed into underground voids ... -
effect of sulfate content on the evolutive fracture behavior and properties of fiber-reinforced cemented paste backfill
(2022)backfilling technology is utilized globally to improve ore recovery, reduce mine-generated waste, and provide stability to underground voids. cemented paste backfill (cpb), a mixture of mine tailings, cement binder, and ... -
fracture behavior of fiber-reinforced cemented paste backfill under curing pressure
(2022)due to the rapid strength acquisition rate, relatively high solid content, and sustainable reuse of waste tailings, cement paste backfill (cpb) technology has gradually become a standard practice in underground mining ... -
enhancing machine vision using human cognition from eeg analysis
(2022)visual classification is the perceptible/computational effort of arranging objects and visual contexts into distinct labels. humans and machines have mastered this advanced problem in their own varied contexts. however, ... -
low co2 methanol by methane pyrolysis in catalytic liquid metal bubble reactor
(2022)methanol production based on methane pyrolysis presents an opportunity for co2 utilization and lower co2 emissions than traditional methanol production processes that are based on methane reforming. this research employs ... -
concrete structure damage classification and detection using convolutional neural network
(2022)a resilient infrastructure system remains a top priority for canada as it is hinged to strong economies. corrosion, ageing, aggressive environments, material defects, and unforeseen mechanical loads can compromise the ... -
performance-based fragility and resilience assessment of coastal bridges subjected to extreme wave loads
(2022)bridges are vulnerable to severe damage due to extreme wave-induced loads from natural disasters, including storm surges, tsunamis, and hurricanes. the frequency of these hazards has been increasing recently as a direct ... -
boosting feature extraction performance on the aspect of representation learning efficiency
(2022)machine learning is famous for its automatic data handling. while there is a slow growth in the performance of the state-of-the-art models in the most recent well-known learning frameworks, the number of parameters and ... -
pore-scale modelling of electrochemically reactive flow
(2022)electrochemistry, a field revolving around charge transport, is omnipresent in our every-day life. it is found in batteries, water treatment, medicine, and food processing, to name a few. water dissolves more substances ... -
influence of building neighbors on wind flow around a tall building
(2022)this thesis focuses on how building neighbors influence wind flow around a tall building. the wake dynamics and flow structures around a tall building are first explored using large eddy simulations (les). following this, ... -
fostering greater equity and inclusion with plant-based food options in school: a critical inquiry with elementary parents in the lakehead district school board
(2022)while there has been increasing attention to equity and inclusion in ontario schools, school food and drink offerings have yet to be explicitly incorporated in most equity and inclusion policies and practices. with the ... -
quantifying the impact of twitter activity in political battlegrounds
(2022)it may be challenging to determine the reach of the information, how well it corresponds with the domain design, and how to utilize it as a communication medium when utilizing social media platforms, notably twitter, to ... -
relating and learning with other beings, materials, and weather: multispecies assemblages at a canadian forest school
(2022)in canada, there has been a surge in outdoor and nature-based programming for young children, such as forest schools, with interest heightening over the covid-19 pandemic. while there are many physical, cognitive, and ... -
attitude control of a quadrotor uav: experimental implementation
(2022)unmanned aerial vehicles (uavs) are becoming ubiquitous due to their potential benefits in many civilian and military applications. uavs are designed to accomplish complex tasks safely and effectively, such as search and ... -
identification of cracks in pipelines based on machine learning and deep learning
(2022)pipelines are important long-distance transportation structures in modern industry, and because many are buried deep underground, pipeline health monitoring is critical to industry; however, inspecting underground pipelines ...
