ABSTRACT Over the last two decades, several materials such as metals, polymers and composites have been used as implants in the body. Metallic implants have proven to cause stress shielding, toxic corrosion products and necessity for re-surgery. On the other hand, synthetic polymers possess poor stiffness and cause inflammation. The quest in making up for the disadvantages of these materials has culminated in a paradigm shift to the use of biodegradable and biocompatible polymers such as pol...
ABSTRACT This research presents Artificial Neural Network Model for the prediction of the Modulus of Elasticity of Concrete. Egbulonu (2011) equation derived from Scheffe’s (4, 2) simplex equation for predicting the Modulus of Elasticity (MOE) was used to generate 800 values. These data represent different values of Modulus of Elasticity (MOE) out of which, 571 values were selected randomly by the artificial neural network. From the selected values, 400 were used for training the network,...
ABSTRACT Ghana Research Reactor-1 core is to be converted from Highly Enrich Uranium (HEU) fuel to Low Enriched Uranium (LEU) fuel in the near future; a storage cask will be needed to store the HEU fuel. Notwithstanding the core conversion process, it is also important for the facility to have a storage cask ready when the fuel is finally spent to temporarily store the fuel until permanent storage is provided. Winfrith Improved Multigroup Scheme-Argonne National Laboratory (WIMS-ANL), REactor...
ABSTRACT Transmission Control Protocol (TCP) is the dominant transport protocol in the Internet and supports many of the most popular Internet applications, such as the World Wide Web (WWW), file transfer and e-mail. The recently developed advanced wireless networks, such as GPRS, are known to cause delay spikes in packet transfer which causes unnecessary TCP retransmission timeouts. In order to find solutions to this effect, packet losses across wireless links should be distinguished from ...
ABSTRACT The technology of solar water heating is an emerging field in Nigeria. Due to the epileptic power supply in Nigeria, other energy sources are being sought. This project involves the design and fabrication of a portable solar water heater. The design of the solar water heater was done using relevant equations to size the major components of the system. The materials for the components were then selected with consideration to the design calculations, machinability, market availability ...
ABSTRACT The Niger Delta coastal line is one of Nigeria’s richest and largest navigation corridors, characterized by very windy and temperature conditions, such that with possibility of any oil spill incident, catastrophic environmental degradation will occur. Available mathematical models for predicting crude oil spills spread rate will not provide accurate prediction of spread rate under ambient temperature changes and wind effects. This work is concerned with deve...
ABSTRACT This Study examines the performance evaluation of natural gas utilization in Power generation as strategy for reducing Gas flaring in Nigeria. The evaluation method comprises of use of Modular Gas Technology (MGT) plant for flare gas capture and processing, use ofthe processed gas in Turbine for power generation andappraisal of investments on MGT plant that consider profitability as well as time value of money. Technical performance of this technology was evaluated in te...
ABSTRACT Transient compressible natural gas flow through a pipeline was studied by the use of a finite volume method in 2D axisymmetric cylindrical coordinates. To account for turbulence within the pipeline system, the standard turbulence model was simulated together with the Navier Stokes System of equations via the Reynolds-Averaged method. The equation of state employed was the SoaveRedlich-Kwong equation. Implicit discretization was used for the temporal terms, wherea...
ABSTRACT This study presents the modelling and optimization of a Hybrid Energy System (HES) for GSM Base Transceiver Station (BTS) sites in emerging cities. The aim is to ensure reliable and cost-effective power supply, considering the availability, dynamism and viability of energy sources. Theoretical approach is applied in the modelling, simulation and validation of the developed HES, which consists of the utility grid, wind and solar photovoltaic (PV) as primary energy sources incorporati...
ABSTRACT Environmental pollution by non-biodegradable plastics, gradual reduction and increase in cost of petroleum products used have affected lives over the years. With people using different kinds of packaging, it has a part of human daily living. Therefore, it is very important to find lasting and sustainable ways of producing and managing the wastes generated by these plastics. In this work, starch based biocomposites are fabricated and characterised to access its opportunities to repla...
ABSTRACT Oil spills have been a major source of concern due its harmful effect on the environment. To reduce the effect of oil spills, new remediation strategies need to be developed whiles enhancing the efficiency of existing remediation ones. In this study, the potential of TiO2 and its modified form (Fe-TiO2) as a stand-alone or as an add-on remediation strategy was explored. This was carried out by accessing the how TiO2 and Fe-TiO2 photodegrades crude oil fractions (aromatics, paraffins,...
ABSTRACT: The present study assessed water quality parameters and attempts to compare four different Water Quality Indexes (WQIs) for consistency, similarity and reliability in assessing the water quality of river Benue -an inland river- under wet and dry seasons. The results demonstrate that River Benue is continually being polluted in both dry and wet seasons by different sources, particularly domestic sewage and storm runoffs from farmlands. The quality of the water generally excee...
One of the fundamental factors that determine the success or failure of a behavioural change campaign is the nature of communication strategies adopted by the change agent. Nigeria has been declared a polio free nation, but scholarly attention has not been given to the role played by communication strategies in the success of polio immunisation and eradication projects in Northern Nigeria. This study, therefore, investigated the communication strategies used in polio immunisation campaig...
ABSTRACT Sugarcane as an agricultural product is a readily available source of food for its sugar content. However, Sugarcane Bagasse Ash (SCBA) is the bi- product formed at sugar industries from the burning of sugarcane after the sugar content has been extracted. Sugarcane Bagasse Ash (SCBA) is a fibrous waste product containing mainly aluminum and silica, calcium ions to produce calcium aluminate hydrate (CAH) and calcium silicate hydrate (CSH) shown in the pozzolanic reaction below. Ca2+ +...
ABSTRACT This project involves the design and implementation of an intelligent obstacle-avoiding robot car. The objective of this project is to implement a robot car, which while moving should have the ability to detect obstacles in its path and change direction where obstacles are present without any form of external influence. The new direction to be taken to avoid collision is the direction that has the most distance between the obstacle and the sensor and this is determined by the robot b...