1. Stanford University,The Electrical Engineering Department
2. University of Toronto,Electrical and Computer Engineering Department,ON,Canada,M5S 3G4
3. James Watt School of Engineering, University of Glasgow,Glasgow,U.K.,G12 8QQ
4. School of Aerospace, Transport and Manufacturing, Cranfield University,Cranfield,U.K.,MK43 0AL
5. ABB Corporate Research Sweden,Department of Automation Technology,Vasteras,Sweden