School of Electric and Electronic Engineering, Shandong University of Technology, Zibo 255049, China
School of Science , Shandong University of Technology, Zibo 255049, China

Copyright © Yanping Wang, Bing Wu et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

How to Cite this Article

Download citation as EndNote