principal investigator Yongjun Zhu doctoral students Ting Jiang Nareum Kim Seojin Nam Jinyoung Oh Manwhee Han master's students Jeongyeon Choi Kyeongeun Min Chiyoung Song visiting scholars Peiliang Zhang alumni Dr. Donghun Kim Asst. Prof. at Nanjing University Hayeon Jang Xuanrong Cui past visiting scholars Dr. Yi Zhao Asst. Prof. at Anhui University Dr. Rui Liu Asst. Prof. at Zhengzhou University Dong Xia Qiming Chen