He was a visiting scholar at the University of California, Los Angeles (UCLA), USA in 2016, the RMIT University, Melbourne, Australia in 2016, the National University of Singapore, Singapore in 2012, and the Swiss Federal Institute of Technology (ETH Zurich), Switzerland in 2011. His current research area involves control and automation, MEMS-based micro/nano mechatronics and systems, and applications of computational intelligence. He is a Senior Member of IEEE and a Technical Editor of IEEE/ASME Transactions on Mechatronics. He has published 2 monographs and over 200 scientific papers in international journals and conferences.