About the Authors

Hiroki Morita

Roles Conceptualization, Data curation, Formal analysis, Investigation, Methodology, Visualization, Writing – original draft

Affiliation Graduate School of Science and Engineering, Doshisha University, Kyotanabe, Kyoto, Japan

Satoshi Akao

Roles Conceptualization, Funding acquisition, Methodology, Project administration, Resources, Validation, Writing – review & editing

sakao@mail.doshisha.ac.jp

Affiliation Graduate School of Science and Engineering, Doshisha University, Kyotanabe, Kyoto, Japan

Competing Interests

The authors have declared that no competing interests exist.