Browsing Materials Science and Engineering by Issue Date
Now showing items 1-20 of 104
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Studies of the Chemical Vapor Deposition Method of Generating Graphene
(2009-12-15)Since the pioneering report of the discovery of graphene in 2004 by Novoselov et al, scientists and researchers worldwide have carried out in depth investigations in this new family of carbon because of its myriad properties ...
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Clay Filtration of Microbes and Fluoride
(2010-06-07)Consumption of contaminated water may result in several water-borne diseases, including hepatitis, typhoid, cholera, dysentery and other diseases that cause diarrhoea. One of the ways this problem can be prevented is by ...
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Strength and Fracture of Earth-Based and Natural Fiber-Reinforced Composites
(2010-12-15)This study examined the mechanical properties of earth-based materials that are relevant to the future development of affordable housing. Earthcrete structures were produced by mixing various proportions of laterites, clay ...
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Gold Nanoparticle for Medicine
(2010-12-15)Gold nanoparticles were synthesized by reducing aqueous chloroauric acid (HAuCl4) with three different bacteria. Various microorganisms were verified to see how feasible they will be in synthesizing gold nanoparticles. ...
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Adhesion and Optoelectronic Properties of Organic Light Emitting Devices (OLEDs) and Hybrid Organic-Inorganic Light Emitting Devices (HOILEDs) with Tio 2 Nano-Particles
(2010-12-17)This study examines the basic operation of an Organic Light Emitting Device (OLED) and Hybrid Organic-Inorganic Light Emitting Devices (HOILED) by looking at the individual characteristics of the each layer which makes up ...
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Implantable Biomems Devices for Localized Breast Cancer Drug Delivery
(2011-12-15)Implantable Bio-Micro-Electro-Mechanical Systems (BioMEMS) represent a new class of devices that can provide localized cancer drug delivery by the combined effect of chemotherapy and hyperthermia which gives it an advantage ...
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Modeling of Cold Welding and Lamination of Organic and Hybrid Organic /INORGANIC Structures
(2011-12-15)This research work presents the results of analytical studies of effects of pressure and adhesion energy on the interfacial properties of cold welded and laminated surfaces in organic and Hybrid Organic/Inorganic electronic ...
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Abrasive Wear Studies of Pack Cyanided Mild Steel (PCMS)
(2011-12-15)This work aimed at using processed cassava leaves to pack cyanide mild steel (MS) under different treatment conditions and investigating the wear properties of the pack cyanided mild steel (PCMS). Pack cyaniding (PC) of a ...
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Modeling and Simulation of Stress Distribution and Crack Configuration of the Geometry of Ceramic Water Filter
(2011-12-15)Most countries in Africa are faced with difficult challenges in terms of providing safe, clean drinking water for their citizens. The world Health organization estimates that approximately 500 lives are lost per day in ...
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Biosynthesis of Magnetic Nanoparticles for Cancer Detection and Treatment
(2011-12-15)Chemical and physical methods for the synthesis of magnetic nanoparticles for cancer detection and treatment often involve toxic chemicals, high cost and the formation of non-stable nanoparticles. This prompted the development ...
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Bacterial Remediation of Polyethylene
(2011-12-15)Improper disposal of commodity plastics e.g. polyethylene (PE) in the environment causes land pollution, soil infertility, is unsightly and poses dangers to plant and animal life. The current effort describes the bacteria ...
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Paclitaxel Loaded Polylactide-Co-Glycolide Acids for Coronary Artery Disease and Cancer Treatment
(2013-04-07)The number one killer disease in the world is Cardiovascular Disease1. The most serious element of Cardiovascular Disease is Coronary Artery Disease. Currently, the main treatment for Coronary Artery Disease is stent ...
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Effect of Pressure on the Performance of Organic Light Emitting Devices Fabricated by Cold Welding
(2013-04-15)Analytical and finite element models were used to simulate additive cold welding patterning processes. The effects of adhesion, pressure, thin film (layer) thickness and dust particle modulus (between the contacting surfaces) ...
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A Study of the Pre-Treatment Temperature of Lignocellulosic Butanols an Alternative Fuel (BIOFUEL) Produced from Bamboo using Clostridium Acetobutylicum
(2013-05-12)Conversion of lignocellulosic biomass from bamboo (Bambusa vulgaris) to butanol is an important alternative energy source. In this work, bamboo was used as biomass feedstock for the production of butanol by the fermentation ...
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The Role of Sulfur Oxidizing Bacteria on Corrosion of X65 Low Carbon Steels and its Mitigation Using Sodium Tungstate and Nickel Biocides
(2013-05-12)Metals in service often give a superficial impression of permanence, but all except gold are chemically unstable in air and air-saturated water at ambient temperatures and most are also unstable in air-free water. Corrosion ...
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Numerical Modeling of Wellbore Instability (SHEAR Failure) using Fracture Mechanics Approach
(2013-05-12)Wellbore instabilities are responsible for 10-20% of the total drilling cost. It has been estimated that wellbore instability causes an annual economic loss of US$ 500 - 1000 million in the oil industry across the world. ...
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Numerical Modeling of Wellbore Instability (TENSILE Failure) Using Fracture Mechanics Approach
(2013-05-12)When a well is drilled, the equilibrium in-situ stress is changed. In order to support the stress relief induced by the drilling and to prevent hydrocarbon influx into the cavity, the borehole is filled with a fluid. These ...
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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 ...