Supported by NSFC(11301386);NSFC(11001195);Beiyang Elite Scholar Program of Tianjin University(0903061016);The Project Sponsored by the Scientific Research Foundation for the Returned Overseas Chinese Scholars,State Education Ministry
Supported by the National Natural Science Foundation of China(11301386;11026197;11226080);the Outstanding Youth Teacher Foundation of Tianjin(ZX110QN044);the Doctor Foundation of Tianjin Normal University(52XB1011)