This paper presents the equilibrium and stiffness study of planar clustered tensegrity structures (CTS) considering pulley sizes. We first derive geometric relationship between strings pulleys, where nodal vector is chosen as generalized coordinate. Then, equations structure with pulleys based on Lagrangian method are given. Since a usually weakened when using clustering strings, we formulate t...

PURPOSE Rectus and the inferior oblique extraocular muscles (EOMs) consist of orbital layers (OLs), inserting on connective tissues, and global layers (GLs), inserting on the sclera. This study was performed to clarify the anatomic relationships of the corresponding layers of the superior oblique (SO) muscle. METHODS Two whole human and two monkey orbits were serially sectioned en bloc at 10-...

Percutaneous A1 pulley release is being increasingly used as an alternative to open surgical release and injection of local steroids for the treatment of the trigger digit. In 31 cases (26 patients), a percutaneous release was performed with a 14-gauge intravenous catheter needle under local anaesthesia in the outpatient setting. We report a 97% successful release and only one case of incomplet...

A novel triply interlocked [2]rotaxane based on a triptycene-derived tris(crown ether) host and a guest embedded with three dibenzylammonium and three N-methyltriazolium recognition sites was designed and synthesized, which showed pulley-like shuttling motion controlled by acid and base.