Volume 29, Issue 2 (September)

Articles in this Issue

7 articles
1
Research Article

Global Solvability of Navier-Stokes Equations with Temperature in Infinite Channel

Peter Anthony*, D. Hyuk Isaac, S. Magaji Abubakar, M. Gyuk Philibus

This paper determines the global, in time, solvability ofNavier-Stokes equation coupled with temperature in a Poincare-like unbounded domain. Existence, uniqueness and furtherregularity of solutions were obtained for the full Bousinesqsystem in uniformly local spaces. We have used themaximum principle for temperature to establish the cardinalproperties of this illusive phenomena of turbulence.

Dec, 2019 pp. 1-17 9 views 7 downloads
2
Research Article

Variational Iteration Method for Solving Higher-order Integro-di erential Equations

M. O. Olayiwola*, M. O. Ogunniran

In this paper, a numerical method for the solution ofIntegro-differential equations is discussed. The variationaliteration method (VIM), which is a modified general Lagrange multiplier method is employed to solve differenttypes of integro-differential equations. The results revealedthat the VIM is very effective, simple and is of high accuracy for solving higher-order integro-differential equation...

Dec, 2019 pp. 18-23
3
Research Article

New Generalizations of Hardy-type Inequalities on Time Scales

E. E. Aribike*, K. Rauf

This paper consists of new generalizations of Hardy-type.integral inequalities and its reversed form on time scales byusing modified Jensen's inequality via convexity. Furthermore,multidimensional Hardy-type inequalities with weightFunctions on time scales are also investigated and proved.

Dec, 2019 pp. 24-35
5
Research Article

On the Performance Assessment of Mean Methods in Estimating Process Capability for Skewed Distributions

J. O. Braimah*, S. O. Elakhe, N. Edike

This study compares the performances of Gini Mean, Clementsand Box-Cox transformation methods for estimating processcapability Indices when the distribution of the process data is(skewed) non-normal. The use of process performance index(PPI) is implored for process capability analysis (PCA) usingWeibull distribution. Data was simulated using R software witha decision interval (target point) of 1.0...

Dec, 2019 pp. 48-69 1 views
6
Research Article

Linear Programing Formulations for Optimum Students Transportation Need in a University with two Campuses

N. Nyor*, P. O. Evans, S. Audu, S. Henry

This work aimed at optimizing student's transportation needand that of the transport agencies at Federal University ofTechnology Minna, Nigeria, which operates two campuses.Simplex method was used as a method of solution by makinguse of Linear Program Solver (LiPS) Software. The resultsfrom the Linear Programing formulations showed percentageincrements of 10%, 6%, 17%, and 3% students for the resp...

Dec, 2019 pp. 78-90
7
Research Article

An Investigation of the Effects of Diffusion on a Competition Model

J. N. Ndam*, E. O. Tuoyo

We present a reaction-diffusion competition model, to describethe spatial spread of two competing species. Standard analysisof the model using the travelling wave procedure was employedto determine the existence of travelling wave solutions andthe stability of the equilibrium points. The result shows thatthe zero equilibrium point is stable, contrary to that of adiffusion-free competition model. T...

Dec, 2019 pp. 91-103
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