About the Authors

Zu Soh

sozu@bsys.hiroshima-u.ac.jp (ZS); tsuji@bsys.hiroshima-u.ac.jp (TT)

Affiliation Department of System Cybernetics, Institute of Engineering, Hiroshima University, Higashi-Hiroshima, Japan

Shinya Nishikawa

Affiliation Department of System Cybernetics, Graduate School of Engineering, Hiroshima University, Higashi-Hiroshima, Japan

Yuichi Kurita

Affiliation Department of System Cybernetics, Institute of Engineering, Hiroshima University, Higashi-Hiroshima, Japan

Noboru Takiguchi

Affiliation Division of Material Sciences, Graduate School of Natural Science and Technology, Kanazawa University, Kanazawa, Japan

Toshio Tsuji

sozu@bsys.hiroshima-u.ac.jp (ZS); tsuji@bsys.hiroshima-u.ac.jp (TT)

Affiliation Department of System Cybernetics, Institute of Engineering, Hiroshima University, Higashi-Hiroshima, Japan

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceptualization: TT. Data curation: SN. Formal analysis: ZS SN. Funding acquisition: ZS TT. Investigation: NT. Methodology: ZS. Project administration: TT YK. Resources: NT. Software: SN. Supervision: TT YK. Validation: ZS. Visualization: ZS. Writing – original draft: ZS. Writing – review & editing: YK.