1. Research Institute of Wood Industry of Chinese Academy of Forestry, Hunan Collaborative Innovation Center for Effective Utilizing of Wood & Bamboo Resources, No. 1, Dongxiaofu, Xiangshan Road, Haidian District, Beijing 100091, P.R. China
2. Department of Mechanical Engineering, University of North Texas, Denton, 3940 North Elm Street, Denton, Texas 76207, United States