He is currently a professor at the University of California, Riverside, department of mechanical engineering.
He is also a visiting scientist at the National Institute of Standards and Technology.
Consultant scientist of the United States Naval Research Office, and consultant scientist of Raytheon Missile Systems, USA.
Former Dean of School of Mechanical Science and Engineering, Huazhong University of Science and Technology.
On June 24, 2009, he served as Dean of Engineering College of Sun Yat-sen University.