Articles

51

Research Article

On the Numerical Solution of Linear and Non-linear Fredholm Integral Equations

M. O. Olayiwola^*, P. Ozoh, M. A. Usman, A. W. Gbolagade

In this research article, solutions of linear and nonlinearFredholm Integral Equations of the second kind were obtainedthrough the Variational Iteration Method (VIM).The accuracy rate acquired from the comparison of theobtained results with the exact solution uncovers thatthe method is efficient and computationally effective.

Jun, 2018 pp. 70-77

52

Research Article

BIOINFORMATICS: THE RELATIONSHIP BETWEEN INFORMATION TECHNOLOGY AND THE SCIENCE OF GENETIC ENGINEERING

Usman-Hamza F. E^*

This study takes a look at the relationship between information technology and the science of genetic engineering. It explains how bioinformatics originated, explaining the variousfields involved. This study briefly explains how information technology has helped solve complex biological problems by introducing learning conditional transducer algorithm whichprovides a framework for understanding DN...

Jun, 2014 pp. 70-76

53

Research Article

On the Nilpotent Fuzzy Subgroups of the Abelian Type: Z₃₂ × Z₂ⁿ, n ≥ 5

S. A. Adebisi^*, M. Ogiugo, M. EniOluwafe

The extension of the finite nilpotent groups is now being diversified. As such, results up to two dimensions are now obtainable. In this paper, the fuzzy subgroups of the nilpotent abelian structure given by: Z32 × Z2n, the cartesian product of two abelian subgroups of orders 2n and 32 respectively for every integer n > 5 have been carefully studied and the explicit formulae for its number distinc...

Aug, 2026 pp. 73-78 2 views

54

Research Article

Phase-fitted partitioned Runge-Kutta methods for separable oscillatory Hamiltonian systems and related problems

J. O. Ehigie^*, S. A. Okunuga, E. Ayeni

We present an approach for deriving some phase-fitted Parti tioned Runge-Kutta (PRK) methods for numerical integration of separable Hamiltonian and related systems. The approach constitute the modification of the existing PRK such that some parameters are modified to eliminate the phase-lag and the amplification error using the analysis of phase properties. The new coefficients are derived such th...

Apr, 2019 pp. 77−92

55

Research Article

JUST-IN-TIME SCHEDULING PROBLEMS ON IDENTICAL PARALLEL MACHINES

M. O. Adamu^*, Abass O.

Problems involving Just-In-Time (JIT) scheduling provide an interesting and difficult challenge, which is addressed critically within this paper. This study considers the scheduling of parallelidentical machines to maximize the (weighted) number of on-time jobs. This problem is known to be NP-complete. Three problems were dealt with in this paper. Two greedy heuristics with time complexity O(n log...

Jun, 2014 pp. 77-95

56

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

57

Research Article

Result on the Existence and Uniqueness of the Fixed Point with Mann Iteration in a Complete G-Metric Space

A. A. Idowu^*, B. Y. Aiyetan, K. Rauf, L. Aminu

In this research, we prove the existence and uniqueness ofthe mixed point in a complete G-metric space using severalgeneralised contractive conditions formulated in G-metricsettings, taking Mann-iteration as our iterative procedure. Our results improve and extend some well-knownresults in the literature. We have utilized these conceptsto deduce that Mann iterative procedure is G-convergent,G-Cauch...

Jun, 2018 pp. 78-88

58

Research Article

Mathematical Analysis of Draw-Down Level and Its Effect On Crop Yield

M. D. Shehu^*, O. P. Evans, H. O. Ahmed, I. A. Adeniyi

In this paper, we formulated mathematical equations for ground water flow considering the Draw-down levels in an unconfined Aquifer system, using the parameters; well pumping rate, hydraulic conductivity, transitivity, radius of influence. Different draw-down levels for different wells were determined in an unconfined aquifer system. Relating the draw-down level to crop production (Maize yield) sh...

Dec, 2015 pp. 79−86

59

Research Article

Modified Variational Homotopy Perturbation Method for Nonlinear Volterra Integro-differential Equations

Ignatius N. Njoseh^*, Ebimene J. Mamadu

In this paper, we apply the Modified Variational Homotopy Method (MVHPM) for the numerical solution of nonlinear Volterra integro-differential equations. The method is an elegant mixture of Variational Iteration and Homotopy Perturbation Methods. The modification is effected at the approximation stage. This modification is the addition of the coecients of the least and highest powers of the homot...

Jun, 2016 pp. 80-87

60

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