Youngryel Ryu¹, Yorum Hwang², Wonseok Choi¹, Jongmin Kim³, Jeehwan Bae³, Youngbum Kim¹, Jinwook Shin¹, Jonghyun Kim⁴, Minsik Kim⁵ and Jae-Pil Park⁵, (1)Seoul National University, Seoul, South Korea, (2)Seoul National University, Department of Landscape Architecture and Rural Systems Engineering, Seoul, Korea, Republic of (South), (3)Seoul National University, Seoul, Korea, Republic of (South), (4)SOLDAN INC., Seoul, South Korea, (5)NARA SPACE TECHNOLOGY, Pusan, South Korea