[1] Kyung Hee Univ, Dept Mech Engn, 1732 Deogyeong Daero, Yongin 446701, Gyeonggi Do, South Korea
[2] Kyung Hee Univ, Ind Liaison Res Inst, 1732 Deogyeong Daero, Yongin 446701, Gyeonggi Do, South Korea
[3] Myongji Univ, Dept Mech Engn, 241 Geumhak Ro, Yongin 449728, Gyeonggi Do, South Korea
[4] Seoul Natl Univ, Dept Elect & Comp Engn, 1 Gwanakro, Seoul 08826, South Korea