1. Department of Public Utilities,City of Cleveland,Ohio State,USA
2. Michigan Technological University,Dept. Electrical & Comp. Engineering,Houghton,MI,USA,49931
3. CTE Computer Science & Robotics, International Leadership of Texas,College Station,Texas,USA
4. Constructor University,Dept. Comp. Sc. & Electrical Engineering,Bremen,Germany
5. Institute of Physics, University of Münster,Münster,Germany,48149
6. Kebbi State Univ. of Sc. & Tech,ICT Department,Aliero,Nigeria