1. Universite de Franche-Comté, SUPMICROTECH, CNRS, institut FEMTO-ST,Besancon,France
2. ESEO engineer school,Dijon,France
3. Dedan Kimathi University of Technology,Department of Mechatronics Engineering,Nyeri,Kenya
4. National School of Engineering in Tarbes (ENIT-INPT), University of Toulouse,LGP laboratory,Tarbes,France