国家科技支撑计划项目2012BAC10B02;安徽省高等学校省级自然科学研究重点项目KJ2012A276,KJ2013A256;安徽省哲学社会科学规划课题AHSKF11-12D346;the National Key Technology R&D Program2012BAC10B02;the Natural Science Foundation of Universities of Anhui ProvinceKJ2012A276,KJ2013A256;the Philosophy and Social Science Foundation of Anhui ProvinceAHSKF11-12D346