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Design and evaluation of a hybrid multi-task learning model for optimizing deep reinforcement learning agents
(2021-04-01)
Driven by recent technological advancements within the artificial intelligence domain, deep learning has emerged as a promising representation learning technique. This in turn has given rise to the evolution of deep ...
Investigation of selective optical properties of Si/SiO2 nanostructures generated by pulsed laser ablation as-deposited and post-treated
(2020-05-01)
Silicon and its derivatives like SiO2 are essential materials for industrial applications such as semiconductors, optoelectronics, and telecommunication. Optical properties of a large group of silicon/silica nanofibrous ...
Compact integrated designs of microwave filters and antennas with dual-polarization
(2021-02-01)
Microwave antenna and filter circuits are key components in all types of communication systems. In order to achieve high compactness and high performance for next generation wireless networks, this thesis investigates the ...
Design, development and experimental validation of a lab-scale system for rapid rotational molding of functionally graded integral-skin cellular polyethylene composites
(2020-03-01)
An existing lab-scale experimental setup system, originally developed for a patented Rapid Rotational Foam Molding (RRFM) process, was re-designed, built, and its functionality was successfully experimentally verified. The ...
Electrical impedance tomography for internal radiation therapy
(2021-08-01)
Internal radiation therapy is a radiation-based treatment for various forms of localized cancer. In this treatment, several needles or catheters are inserted percutaneously into the tissue, and radiation is delivered through ...
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 ...
An integrated wind-powered energy system for residential applications in cold regions
(2021-09-01)
This thesis proposed an integrated direct wind-powered energy system that can provide drinking water, domestic hot water, space heating as well as electricity for residential applications of a remote community in a cold ...
Fast algorithm for joint unicast and multicast beamforming in large-scale systems
(2021-09-01)
We consider a joint unicast and multi-group multicast beamforming problem for massive multiple-input multiple-output (MIMO) system with a large number of unicast users. We propose an alternating direction method of multipliers ...
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 ...
Analytical and experimental study of the effect of cutting tool microgeometry on the impact resistance of milling tools
(2021-01-01)
This thesis conducted a two-part investigation into the ability of a milling tool cutting insert to resist the impacts that occur during the milling process, with respect to the cutting edge microgeometry. The first part ...