Changjiang Scholar and Innovative Research Team in University(IRT0972);National Natural Science Foundation of China(20971094);International S&T Cooperation Program(2007DFA50940);Natural Science Foundation of Shanxi Province(2009011012-4);International S&T Cooperation Program of Shanxi Province(2009081018,2010081017);Shanxi Research Fund for Returned Scholars(2008-31)~~