1. Laboratory of Energy, Materials, Modelling and Methods, National Higher Polytechnic School of Douala University of Douala Douala Cameroon
2. Laboratory of Combustion and Green Technologies Department of Energetic Engineering UIT University of Ngaoundere Ngaoundere Cameroon
3. Research Chair on the Aging of Power Network Infrastructure (ViAHT) University of Quebec in Chicoutimi Chicoutimi Canada