Volume 26, Issue 1 (August)

Articles in this Issue

14 articles
4
Research Article

An Analytical Approach for Predicting Atmospheric Concentration of Air Pollutants

A. M. Jibrin*, R. O. Olayiwola, A. T. Cole, M. D. Shehu

Many forms of atmospheric pollution affect human health and the environment at levels from local to global. These contaminants are emitted from diverse sources, and some of them react together to form new compounds in the air. This paper presents a three-dimensional transient equation describing the pollutant transport in the atmosphere. We assume the atmosphere is subjected to pollutant due to th...

Sep, 2017 pp. 30−44
5
Research Article

Hydromagnetic radiative flow past a vertical oscillating plate with chemical reaction in presence of heat source

Peter F. FASOGBON*, Y. O. Tijani

In the present article, we study time-varying hydromagnetic chemically reacting free convective flow of a viscous, incom pressible radiating fluid past an infinite oscillating vertical plate with variable surface conditions subject to transverse magnetic field in the presence of temperature dependent heat source. Soret and Dufour effects are taken into consideration. The radiative heat flux is sim...

Sep, 2017 pp. 45−60
6
Research Article

Steady Flow of a Third Grade Fluid in a Porous Half-Space using Adomian Decomposition Method

M. A. Usman*, O. R. Hassan, O. M. Ibiyemi

This study investigates the steady flow of a third grade fluid in a porous half space medium. The problem is a non-linear, two-point boundary value problem on semi-infinite material. The analytical solution of the problem was obtained using Adomian Decom position Method (ADM) which is proved to be highly accurate and efficient as the series solution converges very fast. The series solution of ADM ...

Sep, 2017 pp. 61−82
7
Research Article

MODELLING AND EVALUATION PERFORMANCES WITH NEURAL NETWORK USING CLIMATIC TIME SERIES DATA

T. O. Olatayo*, A. I. Taiwo

Neural network model is an alternative powerful data modeling tool capable of capturing and representing non-linear relationship between variables. The methodology used in this research article were Artificial Neu ral network (ANN), Autoregressive Integrated Moving Average (ARIMA) and fuzzy time series (FTS) models. The study revealed that, since ANN forecast performance evalu ation has the lowest...

Sep, 2017 pp. 83−94
8
Research Article

Numerical Solution of Two Dimensional Poisson and Laplace Equations

Aliu Tajudeen*, O. M. Bamigbola, and Montaz Ali

The study identifies the use of Finite Element Method with both rectangular and Triangular elements in solving two di mensional problems with Dirichlet boundary condition in a rectangular domain. We use the product functions of linear polynomial basis constructed by (Aliu & Bamigbola, 2014) on the rectangular elements. Attempt was made at con structing the basis functions for Triangular elements. ...

Sep, 2017 pp. 95 −112
9
Research Article

Numerical Integration of Seventh order Boundary Value Problems by Standard Collocation Method via Four Orthogonal Polynomials

K. A. Bello*, O. A. Taiwo, A. Abdulkareem, J. U. Abubakar, F. A. Adebisi

Based on standard collocation technique, four (4) different orthogonal polynomials were used as basis functions in the numerical treatment of seventh (7th) order boundary value problems in Ordinary Differential Equations. The perfor mance of each of these polynomials as basis function in the trial solution was then compared. The results obtained from three examples showed that Chebyshev polynomial...

Sep, 2017 pp. 113−127
10
Research Article

Investigating the Effect of Damping Coefficients on Euler-Bernoulli Beam Subjected to Partially Distributed Moving Load

M. A. Usman*, B. T. Ogunsan, S. T. Okusaga, O. O. Solanke

In this paper, the effect of damping coefficients on Euler Bernoulli Beam subjected to distributed load is studied. The partial differential equation of order five was transformed to ordinary differential equation of order two using finite fourier sine transform. Finite difference method was used to solve the resulting differential equation of order two. It was found that the amplitude decreases a...

Sep, 2017 pp. 128−137
11
Research Article

Mathematics Teaching as a Fundamental Tool for Self-Reliance and National Development

Khadijat Saka AMEEN*, Semiu Ayinla SALAWU, Saidat Morenike ADENIJI

Mathematics teaching is an interaction between the teacher and the learners that leads to acquisition of desirable mathematical knowledge, ideas and skill. These mathematical ideas, knowledge and skills form the basic essential tools for human and national independence. This paper therefore discusses the concept of self-reliance, the concept of National development, the concept of Mathematics teac...

Sep, 2017 pp. 138−147 1 views
12
Research Article

Strengthened of Some Results on Fuzzy Soft Multiset Theory

H. M. Balami*, I. A. Onyeozili

In this paper, we present the definition of fuzzy soft multi set and its basic operations such as complement, union and intersection as introduced in 2012. We define the operations such as restricted intersection, restricted union, AND-product, OR-product, restricted difference and restricted symmetric difference. Basic algebraic properties of these operations are presented with relevant examples....

Sep, 2017 pp. 148−172
13
Research Article

MHD Mixed Convective Flow of a Second Grade Fluid in the Presence of Nonlinearized Thermal Radiation, Thermal diffusion and Diffusion thermo Effects

I. G. Baoku*, K. I. Falade

The implicit finite difference method of Crank-Nicolson type is employed to examine heat and mass transfer in a transient magnetohydrodynamic mixed convective flow of a viscoelastic second grade fluid past a vertical porous plate in the presence of nonlinearized thermal radiation, thermal diffusion and diffusion thermo effects. The governing coupled nonlinear time-based partial differential equati...

Sep, 2017 pp. 173−190
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