Browsing Faculty of Graduate Studies and Research by Author "Dai, Liming"
Now showing items 1-20 of 31
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Active Nonlinear Vibration Control of Engineering Structures of Multiple Dimensions
(Faculty of Graduate Studies and Research, University of Regina, 2015-03)An active nonlinear mechanical vibration control strategy is developed in the research of the author’s PhD program for the nonlinear vibration control of engineering structures of multiple dimensions. The proposed control ... -
Analysis of Impact Factors for Traffic Noise in urban Areas
(Faculty of Graduate Studies and Research, University of Regina, 2014-12)Road traffic noise contributes significantly to outdoor environmental noise, especially in urban areas. The pressure of traffic noise is influenced by many factors such as types of engines, exhaust systems and tires ... -
BIOWINTM Modeling of the Startup of an Anaerobic Digester Used in Wastewater Treatment Plants
(Faculty of Graduate Studies and Research, University of Regina, 2013-03)Anaerobic digestion involves biochemical and physiochemical processes. It is an effective process for sludge stabilization and methane gas production. However, the digester capacity decreases with time due to the buildup ... -
Design, Development, and Human Analogous Control of a Climbing Robot
(Faculty of Graduate Studies and Research, University of Regina, 2012-03)In this thesis, a re-configurable wheeled climbing robot has been introduced. This robot is capable of doing a multitude of tasks that no other single robot could do in the past. It can climb staircases, move inside empty ... -
Development of Characterization and Optimization Methodologies for Waste Management
(Faculty of Graduate Studies and Research, University of Regina, 2012-07)Applications of mathematical models to waste management are usually complicated by the complexities involved in either waste treatment processes or waste management systems. In this dissertation research, a set of ... -
Development of Experimental and Modelling Approaches to Characterize Noise Reduction Capability of Porous Materials
(Faculty of Graduate Studies and Research, University of Regina, 2019-07)Porous materials have been recognized as effective materials for noise reduction and noise control. It is also recognized that numerous inherent and external factors may affect the noise reduction properties of porous ... -
Development of Inexact Optimization Methods for Planning Environmental Management Systems Under Multiple Uncertainties
(Faculty of Graduate Studies and Research, University of Regina, 2014-12)Environmental planning is becoming a key component in environmental management due to rapid socio-economic development and steadily increasing population. In real-world applications, uncertainties and complexities are ... -
Development of Inexact T2 Fuzzy Optimization Approaches for Supporting Energy and Environmental Systems Planning Under Uncertainty
(Faculty of Graduate Studies and Research, University of Regina, 2014-04)With the increase and expansion of environmental requirements and dwindling of fossil fuel resources, current environmental and energy systems have aroused wide public concern. In this dissertation research, several ... -
Doubly Fed Induction Generator Control Using Artificial Neural Network for Wind Generation System
(Faculty of Graduate Studies and Research, University of Regina, 2021-08)Due to the electricity demand and environmental concerns, alternative clean forms of energy have been widely researched in recent years, in which wind energy is in evidence. To convert the mechanical energy generated by ... -
Dynamic Modeling and Vision-Based Mobile-Target Tracking in UAVs Using Wide FOV Cameras
(Faculty of Graduate Studies and Research, University of Regina, 2016-02)Control of unmanned aerial vehicles is a very active topic in research with lots of applications ranging from civilian to military. To control a UAV, its attitude is often controlled using gyroscopes, but to control its ... -
Economic Order Quantity (EOQ) Measurement Using Intelligent Systems Techniques
(Faculty of Graduate Studies and Research, University of Regina, 2019-09)Progressively, Intelligent Systems (IS) techniques have been used to reduce the uncertainty in complex problems. Because Intelligent Systems can be taught and predict the results, operations’ knowledge can be implemented ... -
Effects of Interfaces and Interactions between Multiphase Flow and Solid on Engineering Structures
(Faculty of Graduate Studies and Research, University of Regina, 2016-03)Phenomena involving interactions between liquids and solids are widely observed in natural and industrial applications. Interactions between different phases of fluids and solid structures have great importance in engineering ... -
Enhancement of Solubilization and Sorption Behaviors of Polycyclic Aromatic Hydrocarbons Through Involvement of Gemini Surfactants in Soil-Water Systems
(Faculty of Graduate Studies and Research, University of Regina, 2013-04)Contamination of soil, sediment and water by polycyclic aromatic hydrocarbons (PAHs) has been recognized as a major, widespread, environmental waste concern. As a consequence, surfactant enhanced remediation (SER) has ... -
Evaluation of Liquid and Supercritical Carbon Dioxide Fracturing on Tight Sandstone Oil Reservoirs
(Faculty of Graduate Studies and Research, University of Regina, 2020-04)Fracturing technology is an indispensable part in the development of low permeability reservoirs. In order to solve the problems of water consumption and formation damage, carbon dioxide (CO2) fracturing is treated as an ... -
Experimental Research on Multiphase Liquid Mobilization and Motion in Capillary and Micro Models Subjected to External Low Frequency Vibratory Excitations
(Faculty of Graduate Studies and Research, University of Regina, 2017-03)The research of this dissertation experimentally investigates the impacts of external vibratory excitation on the mobilization and motion of multiphase liquid in capillary and microcell models, aiming for understanding the ... -
Generalized Unified Approach to Regression Models with Covariates Missing in Nonmonotone Patterns
(Faculty of Graduate Studies and Research, University of Regina, 2013-05)Complicated designs (eg. partially questionnaire design), which are often used in epidemiologic studies to reduce the cost of data collection while at the same time improving data quality, generate data with nonmonotone ... -
High Resolution Visual Pipe Characterization System Using an Omnidirectional Camera
(Faculty of Graduate Studies and Research, University of Regina, 2015-07)Machine vision techniques are applied in a wide variety of industries around the world for quality inspection of the products. One area that is getting a signi cant amount of attention is pipelines. Pipe manufacturers ... -
Inexact Fractional Optimization for Multicriteria Resources and Environmental Management Under Uncertainty
(Faculty of Graduate Studies and Research, University of Regina, 2014-03)A set of inexact-fuzzy nonlinear programming (IFNP) and inexact fractional mathematical programming (IFMP) methods have been developed for the first time for supporting multi-criteria resources and environmental management ... -
Membrane Surface Functionalization Through Nanomaterials for Wastewater Treatment
(Faculty of Graduate Studies and Research, University of Regina, 2020-09)Water shortage is a global challenge with growing concern due to population growth, economic development, environmental pollution, and climate change. Membrane-based filtration technology has been regarded as one of the ... -
Mobilization and Flow of Multiple Oil Slugs in Water Saturated Capillary Models
(Faculty of Graduate Studies and Research, University of Regina, 2020-05)This research aims to investigate the mobilization and flow of Multi-Oil Slugs (MOS) inside capillary models saturated with water, attempting to understand the mechanism on how single oil slug (SOS) and MOS inside the ...
