基金Supported by Natural Science Foundation of China(11101245,61103119)Science Foundation of Shandong(BS2010SF017,ZR2011AQ005)Shandong Institute of Business and Technology Foundation(2011QN073)
基金supported by NSFSD(No.BS2010SF017,Y2008A04)NNSFC(No.11101245)+1 种基金Foundation of Education Committee of Shandong Province(J07YH03)Foundation of Shandong Institute of Business and Technology(2011QF073)