On the base of above work, the effect to the space vector PWM scheme caused by the fluctuation of neutral point potential was discussed and what’s more the order of space vectors is rearranged for every triangular regions.

Studied on low-frequency oscillation in the Boost converter with one cycle control;

Objective To investigate the effects o ultrashort wave and low-medium frequency electrotherapy on the patients with disc hernia after surgery.

This sort of dynamical effect has a close relation with the low-frequency high-potential center抯 west propagation in the Pacific subtropical area and the remote correlation between east and west Pacific subtropical high may be related and achieved through the low-frequency potential wave.