1. Division of Biomedical Engineering, Chonbuk National University, Jeonju-si, Jeonbuk, Korea
2. Division of Mechanical Design Engineering, Chonbuk National University, Jeonju-si, Jeonbuk, Korea
3. Institute of Fluid Science, Tohoku University, Sendai, Miyagi, Japan
4. Department of Electronics Convergence Engineering, Wonkwang University, Iksan-si, Jeonbuk, Korea