1. Department of Transportation and Logistics Engineering, Hanyang University, 55 Hanyangdaehak-Ro, Sangrok-Gu, Ansan-Si, Gyeonggi-Do 426–791, South Korea.
2. Department of Mechanical Engineering, Hanyang University, 55 Hanyangdaehak-Ro, Sangrok-Gu, Ansan-Si, Gyeonggi-Do 426–791, South Korea.