·     2014.12-  :Tongji University School of Ocean and Earth Science, Professor

·     2014.01- 2014.12:  Brown University, USA, Visiting Scholar

·     2008.11- 2009.03:  University of Georgia, USA, Visiting Scholar

·     2005.05-2014.12:  Tongji University, School of Ocean and Earth Science, Lector, Associate Professor

·     2003.04- 2005.05:  Tongji University, School of Ocean and Earth Science, Post-Doctoral

·     2002.05- 2002.12:  Drexel University, USA, Visiting Scholar