Supported by the Scientific Research Fund of Education Department of Guangxi Zhuang Autonomous Region(2013YB223);the Hunan Province Science and Technology Project(2012FJ3107)
the Natural Science Foundation of Hunan Province(12JJ6006);the Hunan Province Science and Technology Project(2012FJ3107);the National Natural Science Foundation ofChina(11071222);the Scientific Research Fund of Education Department of Guangxi Zhuang Autonomous Region(2013YB223)
Supported by the Natural Science Foundation of Hunan Province (12JJ6006);the Hunan Province Science and Technology Project (2012FJ3107);the National Natural Science Foundation of China (11071222)