The structure design scheme and the control method of a self-balancing cockpit system based on the principle of dual-axis gyro were proposed to solve the problem of improving maneuverability of special copyright platform under large roll and pitch motions.First, the structural modeling of the self-balancing cockpit system was completed by Creo, and
Rare transitional cell carcinoma of the lacrimal sac
Purpose: Transitional cell carcinomas of the lacrimal sac are rare with less than 55 cases reported in the literature.These tumors Switchers typically present with a medial canthal mass and epiphora.Observations: Here we describe a 63-year-old male who presented originally with complaints of dry eye and chronic epiphora.Over the next six months the