the existing structure design code only specifies the scope of reinforcing area in the bottom of shear wall,but does not definite the initial position.

Checking method of initial position for surface-mounted permanent magnet linear synchronous motor;

The initial position and velocity of pulverized coal at oxygen coal lance outlet has been proposed,thus injection of pulverized coal in the blast furnace can be simulated.

The inaccurate measurement of initial position of motor rotor when the motor starts is a problem existing in a servo system applying increment photo-electricity pulse coder.