PhD Theses: Recent submissions
Now showing items 21-40 of 50
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Genetic Units Based Reservoir Characterization using a Normalized Pore Throat Radius for the Clastic System: Niger Delta as Field Case Study
(2016-12-12)Globally, 30–50% of hydrocarbon volumes in silici-clastic reservoirs are contained within the thin-bedded pay. In the Niger Delta deep water assets, over 30% of in-place volumes are found within the complex turbidites. The ...
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Development of a Thermodynamic Model for Wax Precipitation in Produced Crude Oil -- Case Study of Hydrocarbon Fluid from Niger-Delta, Nigeria
(2019-06-23)Wax is often precipitated out of solution in waxy crude oil found in most oil reservoirs around the world, especially as the production of oil and gas has moved from on shore to more challenging terrains offshore. Waxes ...
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Biosynthesis of Gold Nanoparticles for Breast Cancer Targeted Drug Delivery
(2016-12-23)Although there have been significant efforts in breast cancer treatment over the past many decades, current therapeutic approaches are limited by non-specific systemic distribution, inadequate drug concentrations ...
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Earth-Based Construction Materials Reinforced with Tropical Plants and Recycled Waste Cellulose Pulp Fibre: Performance and Durability Assessment
(2021-02)Due to the growing concern of deforestation, renewable materials such as recycled cellulosic waste and non-wood fibres provide an alternative solution for partial replacement of wood resources as a reinforcement agent in ...
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Suitability of Nigerian Barites for Drilling Mud Production and Sustainability of Artisanal and Small Scale Mining (Asm) of Barites In Nigeria
(2021-06-23)The aim of this dissertation is to contribute to efforts towards increasing the use of Nigerian barites in drilling mud production and other industrial applications. In order to achieve the above objectives, three projects ...
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Degradation of Epoxy Composite Coating Using Corrosion and Fracture Mechanics Framework
(2021-03-12)This work presents the results of a combined analytical and experimental study of the effect of reinforcement on the corrosion and adhesion ability of epoxy coatings. Firstly the corrosion behavior of 5-hydroxytryptophan ...
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Additives Effects on the Charge Carrier Dynamics and Performance Metrics of Formamidinium-Rich Mixed Lead Halide Perovskite Solar Cell
(2022-02-23)Perovskite solar cell (PSC) has emerged as a promising photovoltaic technology due to their prospects for high efficiency and low cost. Despite the impressive improvement in their power conversion efficiency (PCE) over the ...
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Biomechanics Approach and Mechanical Biomarkers for Cancer Detection: A Case Study of Triple-Negative Breast Cancer
(2021-11-23)This thesis explores the cytoskeletal structures and the statistical variations in the cell-protein fluorescence intensities/volume densities, creep characteristics, and viscoelastic properties of non-tumorigenic breast ...
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Characterisation and Processing of Baryte Ores for Oil Drilling Applications
(2021-12-12)This study characterizes barite ores and uses environment-friendly and indigenous processes to develop technologies, methods and mineral processing tools for barite recovery from gangue minerals. The study is in four parts. ...
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Alkali Activation and Natural Fiber Reinforcement of Termite Mound Soil for Sustainable, Low Cost and Environmentally Friendly Construction Materials
(2021-04-15)In the construction field, development of green, sustainable and renewable materials is the main focus of research. In that direction, alkali activation technique has attracted a lot of attention in the past few years. ...
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Engineering and Geological Investigations of Slope Stability and Rock Strength Characterization using Nanoindentation
(2021-06-15)Slope stability is of significant importance for sustainable development in mining, civil engineering, and urban planning as slope failures endanger public safety and continue to result in costly repair work. This study ...
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Activated Carbon and Graphene Oxide for Supercapacitors and Batteries Application
(2021-01-20)Carbon-based materials are widely used for energy storage systems because of their unique properties, low cost, and availability. These include Graphite, graphene, activated carbon, graphene oxide, carbon nanotube, carbon ...
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Expanded Clay Aggregates for water purification
(African University of Science and Technology, 2021-02-10)Most poor and vulnerable people such as the peri-urban, people living in poverty and some internally displaced people (IDPs) are prone to water borne diseases because they drink polluted water. In order to improve water ...
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Approximation of Solutions of Inclusion Problems with Applications to Hammerstein Equation and Image Restoration
(2020-09-12)Monotone operators and accretive operators are essential to modern optimization and xed point theory. Monotone operators were rst discovered by Minty in real Hilbert spaces to aid in the abstract study of electrical ...
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Synthesis and Characterisation of Extruded Alkali Activated Earth-Based Composites for Sustainable Building Construction
(2019-09-22)Alkali activation is a rapidly developing area in the global materials research and development community. It is based on alkali aluminosilicate chemistry with primary focus on the activation of solid aluminosilicate ...
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Effects of Adhesion and Deformation on Stretchable Electronic Structures
(2015-11-15)This work presents the results of a combined experimental, computational and analytical study of the effects of adhesion and deformation on stretchable electronic structures. First, atomic force microscopy is used to measure ...
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On the Effect of Surface Texture and Nanoscale Surface Oxides on the Optical and Mechanical Properties of Silicon Single Crystals and MEMS Thin films
(2015-11-15)This dissertation presents the combined results of analytical, computational and experimental study of the effects of surface texture and nanoscale surface oxides on the optical and mechanical properties of silicon single ...
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Uncertainty Analysis in Simulation for Reservoir Management: Case Study from Niger Delta
(2016-04-13)Uncertainty analysis of flow performance predictions involves identifying significant reservoir parameters impacting the flow response. Uncertainty analysis often requires conducting large number of reservoir simulation ...
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Algorithms for Approximation of Solutions of Equations Involving Nonlinear Monotone-Type and Multi-Valued Mappings
(2015-07-13)It is well know that many physically significant problems in different areas of re- search can be transformed into an equation of the form Au = 0, (0.0.1) where A is a nonlinear monotone operator from a real Banach space ...
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Contributions to Iterative Algorithms for Nonlinear Equations in Banach Spaces
(2012-12-13)• Let H be a real Hilbert space. Let K, F : H → H be bounded, continuous and monotone mappings. Let {un }∞ and {vn }∞ be n=1 n=1 sequences in E defined iteratively from arbitrary u1 , v1 ∈ H by un+1 = un − βn (F un − ...