Engineering

Research Papers/Topics in Engineering

The Impact of Highway Design and Construction Practice Defect on the Safety of Nigeria Roads

ABSTRACT Safety on Nigeria roads has become a thing of concern in recent times. This is as a result of numerous carnages that have characterized with Nigeria roads. This loss of lives and properties have been attributed to many factors including poor road design and defective construction practice. A road that is poorly designed, is in no doubt a threat to the safety of the road users. In this paper, therefore the way in which highway design and construction practice impacts on the safety of ...

Monitoring and Control of 3-Tier Power Supply

Abstract Reliable electricity supply is essential for development. As a result, demand for electricity has continued to increase globally, occasioned by the fact that electricity is highly portable and can be transformed from one form to another to meet needs. In Nigeria and most developing countries, electricity supply from the public utility is not only insufficient but highly erratic. The effect of this is adverse on critical and sensitive infrastructure that depend on uninterrupted power ...

A Web- Based Management Information System for National Health Insurance Scheme

ABSTRACT A web-based information management system for national health insurance scheme(NHIS) will assist the body to have an online registration of people, health maintence organizations (HMOs), accredited heath care providers, etc. Looking at the Nigerian population, access to health insurance is denied to a certain category of people as a result of not being a government worker or not privileged to be duly informed on the operation of the scheme and how to enroll Knowing that Health insura...

Improved Second Order Solution and its Application in the Analysis of Redundant Frames

ABSTRACT The traditional methods of analysis of frames are based on first-Order Solution which has many simplifying assumptions, the chief of which includes negligence of shear and axial deformations. In its formulation, the existing second order solution neglected the contribution of shear deformation as well as the contribution of axial force in the curvature of the element. In the attempt to estimate the effect of shear deformation, A, Chugh super-imposed to the conventionals (traditional)...

Scheduling of Solid Waste Collection Routes

ABSTRACT ( . 1, Routing of solid waste collection vehicles in Nigeria poses a challenging task I because ol' attitudinal and liapliazard infi-a structural problems to contend with. 1, New decision procedures for solid waste collection problem are introduced in this study. 'The problem objective is to minimise the overall cost, which is essentially I based on tlie distance travelled by vehicle. The study proposes heuristic methods to generate a feasible solution to an extended Capacitated Chin...

The Span Optimization for Palmnut Fiber Reinforced Mortar Roofing Tiles

Certification ........................................................................................ , . Dedication ............................................................................................... Acknowledgement ........................... ... ............................................. List of Tables ........................................................................................ List of Figures ........................................................................

An Insulation Co-Ordination Procedure for Power System Equipment

ABSTRACT Generally, for existing Insulation co-ordination studies the power system has been modeled either by deterministic mathematical techniques or by statistical methods. The shortcoming of the existing conventional mathematical technique of Insulation co-ordination analysis is that it assumes that the power system dynamics is linear. This makes analysis of over voltage response of the system under transients less optimal for determining over voltage withstand of system elements. Thus, th...

Optimum Buckling Response Model of Grp Composites

ABSTRACT Relevant literature for the modeling and analysis of failure of GRP composites were reviewed. Samples of GRP composites were prepared by hand-lay up. Composites samples were subjected to compressive tests using a tensometer. Mechanical characteristics, such as modulus of elasticity; compressive strength, proportionality limit, elastic limit and critical strain of composites were evaluated from compression tests results. It was found that the compressive strength of all the samples is...

Maximum Power Point Tracking of Polycrystalline Photovoltaic Cells Based on Optimized Adaptive Differential Conductance Technique

ABSTRACT Maximum power point tracking of a polycrystalline Photovoltaic (PV) cell using an Optimized Adaptive Differential Conductance (OADC) technique was proposed in this work. This technique enhances the optimum power transfer from PV panel to the load by reducing the tracking latency and increasing convergence efficiency and speed unlike the conventional Incremental conductance. In this research work, current at maximum power point and voltage at maximum power point can be calculated with...

Comparative Studies of Needle Free Injection Systems and Hypodermic Needle Injection: A Global Perspective

Needle-free injection (NFI) is a novel transdermal either intramuscularly or subcutaneously drug delivery system, where innovative ways to introduce a variety of medicines like as antibiotics, iron, or vaccines comfortably, accurately, easily and rapidly without, piercing the skin compared to traditional needle. While hypodermic needle is inject substances into body by intradermal, intramuscular, subcutaneous, intravenous, etc or extract fluids from the body body, for example taking blood fro...

Design and Implementation of a Mechanical Ventilator

Africa’s healthcare system is challenged by inadequate medical equipment, stemming from the fact that it does not manufacture its own medical devices but depends mostly on used medical equipment donations, many of which do not function and require extensive repairs. The World Health Organization estimates that 50 to 80 percent of medical equipment in developing countries are not working, therefore creating a barrier in the health system delivery of health services.  Mechanical ventilators ...

An Analytical Approach to Analogue/Digital Transition in Radio and Television Broadcasting

ABSTRACT The International Telecommunication Union (ITU) has directed some countries of the world to migrate from analogue to digital broadcasting service before June 17, 2015. This transition has many challenges which have been approached in many ad hoc ways by several countries. This study is aimed at formulating a model that could measure the degree of success of the digital transition programme at any stage of the process. It uses control engineering approach, particularly the state varia...

Development of Jos Tv Broadcasting Studio Reliability Model

ABSTRACT The broadcasting stations in Nigeria often encounter sudden failures, which results in loss of signal that causes the station to experience down-time. Causes of the failures could be traced to the issues that range from erratic power supply to degradation in the studio equipment. Each failure and its consequent down-time influences the reliability of the station. In our environment (Nigeria) reliability does not only depend on the established parameters, instead it includes parameter...

Dynamics of Orthotropic Plates Using Characteristic Orthogonal Polynomial- Galerkin’s Method

ABSTRACT The assumed deflection shapes used in the approximate method such as in the Galerkin method were normally formulated by inspection and sometimes by trial and error , until recently, when a systematic method of constructing such a function in the form of Characteristic Orthogonal Polynomials (COPs) was developed in 1985. However, vibrational analysis of plates with different support and boundary conditions are much more complicated. This project used Characteristic Orthogonal Polynomi...

Influence of Saliency Ratio (Xd/Xq) On the Performance of Three-Phase Synchronous Reluctance Generators.

ABSTRACT In the study of the influence of saliency ratio (L/L) on the performance of a synchronous reluctance generator (SRG), this project investigates two typical generator rotor designs: Generator with cage and without cage otherwise known as cage and cageless rotor respectively. A special attention had been paid to the possible rotor geometries of synchronous reluctance machine, SRM. This ratio can directly influence our insight into the machine’s potential abilities. From the studies o...


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