Browsing Masters Theses by Issue Date
Now showing items 121-140 of 461
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The Effect of Bitumen Coatings on the Corrosion of Low Carbon Steels (API 5l X65)
(2013-05-12)The corrosion behavior of uncoated and cut-back bitumen coated X65 Steel samples are being investigated in environments of different pH (2, 3, 4 and 7). Immersion tests were carried out on the samples at 25oC. The comparison ...
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Failure Mechanisms of Epoxy Coatings in Pipelines
(2013-05-12)Epoxy, a thermosetting polymer due to its attractive properties, has been widely used in many industries as a coating material such as the oil and gas industries. This study provides an insight into the corrosion behavior ...
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Bioinspired Design
(2013-05-12)Bioinspired design involves the use of concepts observed in natural biological materials in engineering design. The hope is that the leveraging of biological materials in the engineering domain can lead to many technological ...
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Influence of Molecular Polarizability on the Active Layer of Organic Photovoltaic Cells: A case study of Poly(3-hexylthiophene)
(2013-05-13)The complexity of the microstructure of the active layer in organic photo- voltaics (OPVs) poses a unique challenge in improving the efficiency of OPV devices. Molecular dynamics (MD) simulation provides a direct route ...
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Femtosecond Laser Surface Texturing of Materials for Various Applications
(2013-05-13)Femtosecond lasers represent an electromagnetic field with field intensities approaching and even exceeding atomic binding field. When irradiated on a target, the material responses change from linear to nonlinear within ...
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Simulation of Carbon Nanotube Growth
(2013-05-13)The basic understanding of the underlying techniques of growing Carbon Nanotubes (CNTs) with a specific chirality is still obscure and needs to be understood so as to properly harness its potentials. Using both Classical ...
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Nonlinear Effect in-flow in Porous Duct
(2013-05-13)In general, it is assumed in some non viscous flows that the flow velocity is constant at a cross-section. In this thesis, If we impose more realistic boundary conditions by, for example, introducing viscosity,and suction ...
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Electro-Magnetic Duality, Magnetic monopoles and Topological Insulators
(2013-05-13)The Maxwell equations of electrodynamics acquire an additional symmetry if one assumes the existence of hypothetical particles-magnetic monopoles, carrying a magnetic charge. The additional internal symmetry is the ...
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The Design of an On-Chip Silicon Photonic Diode
(2013-05-13)This work presents numerical calculation of electromagnetic waves in unidirectional on-chip silicon optical diodes. An original optical diode, designed by Wang et. al. [Opt. Express. 19, 26948-26955 (2011)], is based on ...
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Fundamentals of Laser Dynamics
(2013-05-13)The thesis presents the modeling and simulation of three types of lasers namely; Semicondoctor laser, Solid state laser and CO 2 laser. The rate equations were derived and simulated to examine the dynamic behaviour of the ...
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Annealing Heat Treatment of Organic Material for Controlled Bulk Heterojunction Solar Cells
(2013-05-15)The morphology of active layers of organic solar cells plays crucial roles in achieving good performing devices with longer life span. The process of fabricating these devices involved post deposition thermal annealing, ...
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Design and Implementation of a Native Mobile Multimedia Learning Application Framework on Android Platform
(2013-05-23)Internet connectivity is one of the fundamental requirements for a successful mobile learning environment. However, within the context of Africa, availability and access, let alone cost, still pose a great challenge in ...
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Directional Drilling Hydraulics Optimization using Conventional and Nanobased Drilling Fluids
(2013-05-25)During drilling operations, special attention must be given to wellbore hydraulics to ensure functional, safe, economic, and environmentally responsible delivery of the well. The Hydraulics system shares common purposes ...
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Quantifying Incremental Oil Production and Economics of using Intelligent Completion as a Tool for Reservoir Management
(2013-05-25)Huge amount of hydrocarbon in place is left unrecovered. Integrated reservoir management, in addition to the use of new technologies improves hydrocarbon recovery. Intelligent completion is one of the technologies which ...
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A-Three Dimensional Numerical Simulator for Expansion-Drive Reservoirs
(2013-05-25)Every simulation study is a unique process, starting from the geological model and reservoir description to the final analysis of recovery factor optimizations. In petroleum engineering area, numerical reservoir simulators ...
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Evaluation of Petrophysical Properties in the Ak Field of the Niger Delta Province of Nigeria Using Integrated Data
(2013-05-25)The AK field is an oil field draining the Agbada Formation, one of the three units of the Niger Delta Province, which started forming about 50 million years ago. Reservoirs from the AK field are sandstones and are located ...
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Characteristic Inequalities in Banach Spaces and Applications
(2013-05-27)The contribution of this project falls within the general area of nonlinear functional analysis and applications. We focus on an important topic within this area: Inequalities in Banach spaces and applications. As is well ...
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Quadratic forms with Applications
(2013-05-27)The scope of Quadratic Form Theory is historically wide although it usually appears almost as an afterthought when needed to solve a variety of problems such as the classification of Hessian matrices in finite dimensional ...
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Existence and Uniqueness of Solutions of Integral Equations of Hammerstein Type
(2013-05-27)Let X be a real Banach space, X ∗ its conjugate dual space. Let A be a monotone angle-bounded continuous linear mapping of X into X ∗ with constant of angle-boundedness c ≥ 0. Let N be a hemicontinuous (possibly non-linear) ...