Li, Weiguo
Zhang, Lihui
Ding, Zhan
Wang, Guodong
Zhang, Yandi
Gong, Hongmei
Chang, Tianjun
Zhang, Yanwen
Funding for this research was provided by:
National Natural Science Foundation of China (31100182, 31170354)
Scientific Innovation Fund from Henan Polytechnic University (B2008-25, T2013-2)