Issue N°3 / 2023 ForewordAim and ScopeEditorial BoardsMultipoints Cylinder Corona Reactor New DesignF. Sahraoui, N. Oussalah, S. Flazi, A. Mimouni1Radiated Electromagnetic Field Analysis of Lightning in Presence of a two Layers of Vertically Stratified GroundA. Ziane, K. Arzag, Z. Azzouz, A. Mimouni6Experimental Investigation of a New Electrostatic Separation Process of Metal/Plastic Particles using a Horizontal Rotating DiskImane ZENNANI, Samir ZELMAT, Amar TILMATINE13Breakdown and Flashover in Compressed Gases : Effect of Gas Pressure and InsulatorMohammed El Amine SLAMA, Houssam Eddine NECHMI, Abderrahmane Manu HADDAD19Investigation on Corona Discharge Parameters at Various Temperatures in Precipitator ElectrostaticM. AISSOU, H. AIT SAID, N. HEBBAR, K. LAIFAOUI, H. NOURI25