1. Konkuk University, No. 120 Neungdong-ro, Gwangjin-gu, Room 503-4, Engineering Building No. 33-1, Seoul 143-701, Republic of Korea
2. Konkuk University, No. 120 Neungdong-ro, Gwangjin-gu, Room 423, Engineering Building No. 33-3, Seoul 143-701, Republic of Korea