We used mean-field theory based on the Bogoliubov inequality for the Gibbs free energy to examine the mag- netic properties of a mixed spin-5/2 and spin-7/2 Blume-Capel ferrimagnetic system. The thermal behaviours of the system magnetization are cl [...]
We use standard Monte Carlo simulations based on the Metropolis algorithm and mean-field calculations to investigate the magnetic properties of an Ising bilayer film consisting of two superposed ferromagnetic squared lattices A and B whose magnetic [...]
We use theoretical and numerical calculations in the framework of the effective-field theory to examine the rigorous effects of the crystal field interactions of the mixed spin-2 and spin- 32 Blume–Capel model on the honeycomb lattice in the presen [...]
The Brinkman model is used to study the criterion of appearance of station- ary convection in a porous horizontal layer saturated by a binary mixture of ferrofluids and heated from below. The analytical expression of the Rayleigh number is determi [...]
In this paper we studied the onset of instability in a horizontal layer of a rotating ferrofluid in the presence of the helical force. The analytical expression of the Rayleigh number of the system is determined as a function of the dimensionless n [...]
Stability characteristics of the flow of incompressible viscous fluid, subjected to a uniform magnetic field are investi- gated. The temporal evolution of infinitesimal perturbations is performed by spectral computation of Navier-Stokes equations. [...]
MONWANOU VINCENT ADJIMON [2], SEGNING HILAIRE [1], HINVI LAURENT [3], CHABI OROU BIO JEAN [4],
In this paper, a fractal Josephson junction with unharmonic current-phase relation is analytically and numerically analyzed. This system has two, four, or no equilibrium points depending on the external direct current source and unharmonic parameter [...]
MONWANOU VINCENT ADJIMON [4], SIFEU TAKOUGANG [1], CHABI OROU BIO JEAN [5],
This paper analyses the effects of small injection/suction Reynolds number, Hartmann parameter, permeability parameter and wave number on a viscous incompressible electrically conducting fluid flow in a parallel porous plates forming a channel. The p [...]
MONWANOU VINCENT ADJIMON [1], HINVI LAURENT [2], MIWADINOU CLÉMENT [3], CHABI OROU BIO JEAN [4],
This work studies the nonlinear dynamics and passive control of chemical oscillations governed by a forced modified Van der Pol–Duffing oscillator. We considered the dynamics of nonlinear chemical systems subjected to fluctuating hydrodynamic drag fo [...]
This paper addresses the issue of a mixed Rayleigh–Liénard oscillator with external and parametric periodic-excitations. The Melnikov method is utilized to analytically determine the domain boundaries where horseshoe chaos appears. Routes to chaos ar [...]
MIWADINOU CLÉMENT [1], KOUKPEMEDJI E. W. [3], KPOMAHOU FERNANDO [4], CHABI OROU BIO JEAN [5], MONWANOU VINCENT ADJIMON [2],