2008.8-Present

Professor, Dept. of Mechanics,College of Engineering,  Peking University

2003.8-2008.7

Associate Professor, Dept. of Mechanics,Peking University

2008.7-2008.8

Visiting Scholar, Dept. of Electronic Engineering, City University of HongKong, HongKong

2007.6-2007.8

Visiting Scholar, Dept. of Electronic Engineering, City University of HongKong, HongKong

2004.6-2005.5

Visiting Scholar, Dept. of Electrical and Computer Systems Engineering Science,

Monash University, Australia

2002.6-2003.7

Lecturer, Dept. of Mechanics,Peking University

2000.7-2002.6

Post-doctor, Peking University