This author has not been identified. Look up 'Daehong Kim' in GoogleThis author has not been identified. Look up 'Jinyong Jung' in GoogleThis author has not been identified. Look up 'Sunghyun Lee' in GoogleThis author has not been identified. Look up 'Jinhwan Jeon' in GoogleThis author has not been identified. Look up 'Kiyoung Choi' in Google