About the Authors

Pilwon Kim


Affiliation Ulsan National Institute of Science and Technology (UNIST), Department of Mathematical Sciences and School of Technology Management, Ulsan Metropolitan City, South Korea

Competing Interests

The author has declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: PK. Performed the experiments: PK. Analyzed the data: PK. Contributed reagents/materials/analysis tools: PK. Wrote the paper: PK.