supported by NSFC(No.10971230,No.11101137 and No.11126188);the Natural Science Foundation of Hunan Province(No.10JJ6014);the Research Foundation of Education Bureau of Hunan Province(No.11C0543)
Supported by the NSFC(No.40676016,10471039);the National Key Project for Basics Research(No.2003CB415101-03 and No.2004CB418304);the Key Project of the Chinese Academy of Sciences(No.KZCX3-SW-221);in part by E-Institutes of Shanghai Municipal Education Commission(No.E03004).