Study of profit model of web-dramas on portal sites using big data; Focused on the Web-dramas with the K-pop Singers as the Lead Casts: "EXO, Next Door" and "I Order You". - Se Jong Oh; Young Jae Kim; Ill Chul Doo (Multim. Tools Appl., 2017)

Ultra-High Capacity Optical Satellite Communication System Using PDM-256-QAM and Optical Angular Momentum Beams. - Shippu Sachdeva; Simarpreet Kaur; Romisha Arora; Manoj Sindhwani; Krishan Arora; Woong Cho; Gyanendra Prasad Joshi; Ill Chul Doo (Sensors, 2023)