基金Project(u0837602) supported by the Key Program of the National Natural Science Foundation of ChinaProject(2010J056) supported by the Natural Science Foundation of Education Department of Yunnan Province,China+1 种基金Projects(2009113,2011464) supported by the Analysis and Testing Foundation of Kunming University of Science and TechnologyProject(41118011) supported by the Excellent Doctoral Dissertation to Cultivate Foundation of Kunming University of Science and Technology