河南省科技攻关项目0624410031;河南省教育厅自然科学基金2006360006;"十一五"国家科技支撑计划2007BAI20B075;Scientific and Technological Project of Henan Province0624410031;Natural Science Foundation of Henan Province of Education2006360006;National Technology R&D Program during 'the eleventh Fiveyear' Plan Period2007BAI20B075