基金supported by Projects in the National Science and Technology Pillar Program in the Eleventh Five-year Plan Period(2006BAI05A07)National High-Tech Research and Development Program of China(863 Program)(2006AA02A408)+5 种基金Major State Basic Research Development Program of China(973 Program)(2006cb500700)National Key Technologies Research and Development Program of China(2004BA720A03)National Natural Science Foundation of China(30400262,30470619,30710303061,30871354,30971585)New Century Excellent Talents in University of Department of EducationKey Project of Natural Science Foundation of Hunan Province(08JJ3048)Graduate Degree Thesis Innovation Foundation of Central South University(2008yb030)