Continuously variable transmission (CVT) is a type of automatic transmission that can change the gear ratio to any arbitrary setting within the limits. The most common type of CVT operates on a pulley system that allows an infinite variability between highest and lowest gears with no discrete steps. However, the current CVT system with hydraulic actuation method suffers from the power loss. It ...

[Purpose] This study examined the relationship between core stability and exercise intensity during a pulley-based shoulder exercise (PBSE) on an unstable support surface. [Subjects] Twenty healthy college students enrolled in this study. [Methods] Surface EMG was carried out in twenty healthy adult men. The electromyographic activities of the rectus abdominis (RA), erector spinae (ES), exercis...

Finger flexor pulley system injuries are the most common overuse injury in rock climbers. These occur rarely outside of climbing, owing to sport’s unique biomechanical demands on finger. As climbing continues grow and earn recognition as a mainstream sport, an understanding how diagnose treat these also has become important. Our purpose is describe current concepts anatomy, biomechanics, clinic...

This paper proposed a pulley-buoy accelerated wave energy linear power generation system, and the feasibility effectiveness of this system were verified through experimental research. Compared with traditional three-stage conversion links, omits intermediate transfer link, realizes direct gain electric from buoy movement caused by wave, introducing pulley combination, speed is enlarged, increas...

This paper proposed a pulley-buoy accelerated type linear wave power generation system, and verifies its feasibility effectiveness through experiments. Compared with traditional three-phase energy converter, the process of transfer was cancelled in converted into electrical movement float directly. In pulley assembly increased velocity generating capacity thereby increasing conversion efficienc...