国家自然科学基金(the National Natural Science Foundation of China under Grant No.10361003);广西省自然科学基金(the Natural Sci- ence Foundation of Guangxi Province of China under Grant No.0542046);广西研究生教育创新计划项目( Innovation Project Guangxi Graduate Education,No.2006105950701M03)
国家自然科学基金( the National Natural Science Foundation of China under Grant No.10361003);广西省自然科学基金( the Natural Science Foundation of Guangxi Province of China under Grant No.0542046); 广西研究生教育创新计划项目 ( Innovation Project Guangxi Graduate Edueation No.2006105950701M03)