Kwak, Moon Kyu, <p>School of Mechanical Engineering, Kyungpook National University, 80, Daehak-ro, Buk-gu, Daegu, 41566, South Korea / Research Center, Ncoretechnology, Co., Ltd., 80, Daehak-ro, Buk-gu, Daegu, 41566, South Korea</p>, Korea, Republic Of