By using the WKBJ method, the average of currents and square of the current are calculated, the results show the existence of the current fluctuation, which causes the noise in the circuits.
By using this shaping system, the square laser pulse is obtained and the fluctuation is less than 10%.
通过这套利用集成光学调制技术的整形系统，得到了脉冲起伏小于10 %的整形方波光脉冲。
3
Using these formulas and a 1-d LDA, mean square value of 2-d turbulent velocity fluctuation and Reynolds shear stress have been measured for water flow in a square duct.