Djimako Bongo

Influence of the Water Nature on the Two-phase Flow in an Air-lift Column

Djimako Bongo, Alexis Mouangué Nanimina, Nandiguim Lamai, Togdjim Jonas, Bonaventure Danoumbe & J. Y. Champagne · Physical Science International Journal · 2020

The aim of this study is to determine the phase indicator functions of a two-phase flow in an air-lift vacuum column. The outcome of this study is to master the hydrodynamics in a vertical column when determining the size, the velocities of the bubbles and the void rate then the...

Open access Research Article 10.9734/psij/2020/v24i230175

Study of the Optical Properties of Cobalt Ferrite Magnetic Liquids

Nandiguim Lamai, Alexis Mouangué Nanimina, Djimako Bongo, Bonaventure Danoumbe & Togdjim Jonas · Asian Journal of Physical and Chemical Sciences · 2020

In this study, we discussed the optical properties (Faraday rotation, transmittance and Merit factor) of two samples of magnetic liquids synthesized by co-precipitation and an additional hydrothermal synthesis of cobalt ferrite (CoFe2O4) developed according to the protocol develo...

Open access Research Article 10.9734/ajopacs/2020/v8i230110

Impact of Magneto-optical Properties Depending on the Orientation in the Plane of Cobalt Ferrite Locked in a Silica Matrix

Nandiguim Lamai, Désiré Allassem, Alexis Mouangué Nanimina, Djimako Bongo & Togdjim Jonas · Asian Journal of Physical and Chemical Sciences · 2021

In this work, we discuss the magneto-optical properties according to the orientation of 15nm-sized cobalt ferrite blocked in a silica matrix in comparison to the study done on 20nm-sized cobalt ferrite. This measurement shows that it is possible to increase the remanence of the F...

Open access Research Article 10.9734/ajopacs/2021/v9i330140