Browsing PhD Theses by Title
Now showing items 41-50 of 50
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Optimization of Niobium-Tantalum Recovery from Typical Rwanda and Nigerian Columbite-Tantalite Ores
(AUST, 2022-09-04)Niobium and tantalum are transition metals with a refractory character and unique properties that make them highly indispensable to the high-technologies and clean-energy. The metals are normally extracted from minerals ...
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Pressure-Assisted Fabrication of Organic Light Emitting Devices
(2015-06-15)This dissertation presents an overview of the research work with the above caption. This research is divided into five major sections or parts. Part one deals with interfacial adhesion studies of the layers relevant to ...
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Processing of Composite Carbon Materials and Solid Electrolytes for Supercapicitor Energy Storage
(AUST, 2022-02-02)These research works presents the results of a combined theoretical, experimental and statistical study of processing of composite carbon materials and solid electrolytes for supercapacitor energy storage The need for ...
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Structure and Properties of Organic and Inorganic Composites Materials: From Organic Photovoltaic Cells to Aerospace Materials
(AUST, 2017-11-15)Pressure and contacts in materials and systems play crucial roles in their performance and also their eventual failures. Pressure application closes voids, bridges gaps and improves transport across interfaces. In thin ...
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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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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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Towards a Unifying Framework for Engineering Devs Distributions Simulation
(AUST, 2017-12-10)Simulation engineering employs the use of simulation models, simulation environments, and simulation execution platforms in providing applicable Modeling and Simulation (M&S) solutions for studying complex systems. Discrete ...
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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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Upstream Petroleum Industry Performance Evaluation using Data Envelopment Analytic Approach
(2019-06-23)Nigeria ranks among the top ten petroleum producers in the world with over eighty petroleum Investors in its upstream sector. This creates an enormous challenge for the upstream institutions’ managers especially in the ...
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Valorization of Agro-Waste for Mechanical Properties’ Improvement of Lateritic Soil for Sustainable Construction
(AUST, 2020-09-06)This study presents the results of a combined theoretical, experimental and statistical study of the mechanical performance of stabilized lateritic soil for sustainable construction applications. The lateritic soil was ...