This work is supported in part by three different National Nature Science Foundations ( 70873040 , 71071051 , 71301069 ) of China, the construct program of the key discipline in Hunan province of China-management science and engineering discipline, the Scientific Research Fund of the Hunan Provincial Education Department ( 14C0974 ) of China, the Hunan Provincial Natural Science Foundation of China ( 14JJ7046 ) and the Scientific Research Foundation of the University of South China ( 2012XQD54 ).