★ Publication Accepted paper will be published in ACMMT 2019 Conference Proceedings, which is one volume of Key Engineering Materials. (ISSN: 1662-9795) of TTP (Trans Tech Publications Inc.). The papers will be sent to be reviewed and indexed by EI Compendex and Scopus ★★Keynote Speakers★★Prof. Yuyuan Zhao, University of Liverpool, UK;Prof. Sergei Alexandrov, Beihang University, China;Prof. Quang-Cherng Hsu, National Kaohsiung University of Science and Technology, Taiwan;Assoc. Prof. Yuki Shimizu, Tohoku University, Japan.