基金The author gratefully acknowledges the partial supports of the Ph.D.Foundation Grant(0527003)of Chinese Education Ministry and the Science Foundation Grant (06DZ037,05DZ11) of Shanghai Education Committee.
基金Supported by National Natural Science Foundation of China(10671126,10671050)the project for science of education bureau of Heilongjiang province(11511137)+1 种基金Natural Science Foundation of Guangdong Province(Grant No.9151051501000072)the Ph.D.Programs Foundation of Ministry of Wuyi University