基金Supported by the National Natural Science Foundation of China under Grant No.60703013 (国家自然科学基金)the Development Program for Outstanding Young Teachers in Harbin Institute of Technology of China under Grant HITQNJS.2007.017 (哈尔滨工业大学优秀青年教师培养计划) the Scientific Research Foundation of Harbin Institute Technology of China under Grant No.HIT2003.35 (哈尔滨工业大学校基金)
基金Supported by the National Natural Science Foundation of China under Grant Nos.60473002, 60603094 (国家自然科学基金)the Beijing Natural Science Foundation of China under Grant No.4051004 (北京市自然科学基金)
