国家自然科学基金面上资助项目,Nos.81071775,81172064,81160311,81001068,81101621;湖北省自然科学重点基金资助项目.No.2011CDA030;中国博士后科学基金面上资助项目,No.2013M531983;National Natural Science Foundation of China,Nos.81071775,81101621,81160311,81172064,and 81001068;the Key Projects of Science Foundation of Hubei Province,No.2011CDA030;the China Postdoctoral Science Foundation,No.2013M531983