supported by NSFC(No.11271301,No.11171364,No.11001226);Science and Technology Project of Chongqing Education Committee(No.KJ110609);Natural Science Foundation Project of CQ CSTC(No.cstc2011jjA00020);Foundation Project of Chongqing Normal University(No.12XLB029)
supported by NSFC(No.11171364,No.11001226);Foundation of Chongqing Educational Committee(No.KJ111207,No.KJ091217);the Innovation Foundation of Chongqing(No.KJTD201321)
supported by National Science Foundation of China(11001226);Youth Foundation of Department of Education of Sichuan Province(11ZB174);Special Foundation from Department of Land and Resources of Shanxi Province(2009SXGTKY06);supported by Research Fund of Chengdu University of Information Technology(KYTZ201003);Qing Lan Project of Jiangsu Province~~