1. Research Center for Intelligent and Wearable Technology, College of Textiles and Clothing, State Key Laboratory of Bio-Fibers and Eco-Textiles, Intelligent Wearable Engineering Research Center of Qingdao, Qingdao University, Qingdao 266071, P.R. China
2. Jiangsu College of Engineering and Technology, Nantong, Jiangsu 226007, P.R. China