Human-machine security collaboration based on virtual collision sensor. - Jianhua Zhang; Hao Zhou; Yan Zhao; Liwei Ci; Yang Lu; Yaonan Zhang; Xuan Liu (ROBIO, 2021)

A granular jamming based hollow variable stiffness structure with adjustable local hardness. - Xuan Liu; Liwei Ci; Jianhua Zhang; Yan Zhao; K. M. Arafat Aziz (ROBIO, 2022)