%0 Journal Article %T Empirical research on the friction behavior of O-rings in hydraulic cylinders %A Qin, Zhen %A Wu, Yu-Ting %A He, Lei %A Gao, Xiang %A Lyu, Sung-Ki %J PLoS ONE %V 18 %N 1 %D 2023-01-23 %I Public Library of Science %~ DeepDyve