A pneumatically-actuated lower-limb orthosis. - Sai-Kit Wu; Matthew Jordan; Xiangrong Shen (EMBC, 2011)

Design and Control of a Variable-radius Pulley-Based pneumatic Artificial muscle actuation System. - Xiangrong Shen; Garrett Waycaster; Sai-Kit Wu (Int. J. Robotics Autom., 2013)