1. Université de Kinshasa,Faculté Polytechnique,DR-Congo
2. Institute for Smart Systems Technologies, Universitaet Klagenfurt,Klagenfurt,Austria
3. Institute of Maintenance and Industrial Security, University of Oran 2,Oran,Algeria
4. University of Johannesburg,Department of Electrical and Electronic Engineering Technology,Johannesburg,South Africa
5. Universitaet Klagenfurt /Inst. f. Smart Systems Technologies,Austria