Computational modelling
A Mathematical Model on the Spread of COVID-19

Eshetu Dadi Gurmu; Mengesha Dibru Firdawoke; Mekash Ayalew Mohammed

Articles in Press, Accepted Manuscript, Available Online from 17 July 2023

https://doi.org/10.22105/jarie.2023.385542.1531

Abstract
  In this paper, a nonlinear mathematical model of COVID-19 was formulated. We proposed a SEIQR model using a system of ordinary differential equations. COVID-19 free equilibrium and endemic equilibrium points of the model are obtained. A basic reproduction number of the model is investigated by the next-generation ...  Read More

Computational modelling
A machine learning approach to the optimal control of the customer dynamics

Seyed Hamid Emadi; Abolfazl Sadeghian; Mozhde Rabbani; hassan dehghan dehnavi

Articles in Press, Accepted Manuscript, Available Online from 19 March 2024

https://doi.org/10.22105/jarie.2024.426657.1578

Abstract
  We consider a continuous model of the optimal control of the customer dynamics based on marketing policies as a non-autonomous system of ODEs. The model tracks the history of the simultaneous changes from the beginning to the current time for the evolution of the company’s regular, referral, and ...  Read More

Computational modelling
A method based on the SCT to solve the inverse problem for heat equation

Samaneh Akbarpour; Abdollah Shidfar; Hashem Saberi Najafi

Volume 10, Issue 3 , July 2023, , Pages 454-471

https://doi.org/10.22105/jarie.2021.301596.1371

Abstract
  In this article, a mathematical model of the inverse problem is considered. Based on this model a formulation of inverse problem for heat equation is proposed. Shifted Chebyshev Tau (SCT) method is suggested to solve the inverse problem. The aim of this determined effort is to identify unknown function ...  Read More

Computational modelling
Analysis of optimal control strategy on transmission dynamics of HPV-HSV-II coinfection model

Eshetu Dadi Gurmu; Boka Kumsa Bole; Purnachandra Rao Koya

Volume 9, Issue 3 , July 2022, , Pages 231-248

https://doi.org/10.22105/jarie.2021.284101.1320

Abstract
  In this paper, optimal control problem is applied to Human Papillomavirus (HPV) and Herpes Simplex Virus type 2 (HSV-2) coinfection model formulated by a system of ordinary differential equations. Optimal control strategy is employed to study the effect of combining different intervention strategy on ...  Read More

Computational modelling
Poisson regression model with change points

Reza Habibi

Volume 8, Special Issue , November 2021, , Pages 1-8

https://doi.org/10.22105/jarie.2021.229051.1149

Abstract
  There are many different fields the change point analysis arises. In those cases, the main problem is locating the unknown change points. The aim of this study is to detect location and time of change point in Poisson regression model. We assume for years before and after the change point , then observation ...  Read More

Computational modelling
Numerical approximation for the fractional advection-diffusion equation using a high order difference scheme

Zahra Mahboob Dana; Hashem Saberi Najafi; Amir Hossein Refahi Sheikhani

Volume 8, Issue 1 , March 2021, , Pages 90-103

https://doi.org/10.22105/jarie.2021.240340.1183

Abstract
  In this paper, a one-dimensional fractional advection-diffusion equation is considered. First, we propose a numerical approximation of the Riemann-Liouville fractional derivative which is fourth-order accurate, then a numerical method for the fractional advection-diffusion equation using a high order ...  Read More

Computational modelling
(Retracted Paper) Stress on spur gear and simulation for micro hybrid systems by Ansys workbench "Following the Committee on Publication Ethics (COPE) guidelines, we regret to inform our readers that this article has been retracted from our journal due to simultaneous publication in another journal, violating ethical publishing standards"

Anisul Islam; Md. Mashrur Islam; Nadim Mahmud

Volume 6, Issue 1 , April 2019, , Pages 80-86

https://doi.org/10.22105/jarie.2019.174397.1083

Abstract
  Spur gears are the most well-known kind of gears used in hybrid vehicle’s power transmission. They have straight teeth and are mounted on parallel shafts. In some cases, many spur gears are utilized without a moment's delay to make huge rigging decreases. In this paper how stress creates on a spur ...  Read More

Computational modelling
Finite Element Coding of Functionally Graded Beams under Various Boundary and Loading Conditions

Othman Al-Hawamdeh; Ibrahim Mousa Abu-Alshaikh; Naser Al-Huniti

Volume 4, Issue 4 , December 2017, , Pages 279-290

https://doi.org/10.22105/jarie.2017.54713

Abstract
  Detailed formulation and coding of exact finite element is carried out to study the static behavior of a layered beam structure. The beam element is modelled based on the first-order shear deformation theory and it is assumed to be composed of three layers whereas the middle layer is made of functionally ...  Read More