Funding for this research was provided by:
National Natural Science Foundation of China (61300124)
Collaborative Innovation Project of Ministry of Education of the P.R.C (201701069012)
Key Science and Technology Project of Henan Province of China (152102210102, 132102210123)
Project of the Educational Commission of Henan Province of China (13A520321, 15A520001)
Project of the Basic Research Development Program of Henan Province (132300410333)
Project of the Doctoral Fund of Henan Polytechnic University (B2013-040)
Project of the Educational Commission of Henan Province of China (16A520052)
Article History
Received: 22 August 2017
Revised: 9 October 2017
Accepted: 26 October 2017
First Online: 10 November 2017