the Grant for State Key Program for Basic Research of China(973)(2007CB311006);the Program for New Century Excellent Talents in University,Grant No.NCET-08-0345;Shanghai Rising-Star Program grant No.09QA1402900;Foundation for Innovative Research Groups of the National Natural Science Foundation of China(60921003);the National Natural Science Foundation of China(60805015);Research Fund of Shaanxi Key Laboratory of Electronic Information System Integration(No.201101Y17);China Postdoctoral Science Foundation(No.20100481337)