program for fingerprint recognition using minutia The general shape of the fingerprint is generally used to pre-process the images, and reduce the search in large s. This uses the general directions of the lines of the fingerprint, and the p

NALM锁模激光器仿真，非线性环路反射镜锁模获得飞秒激光脉冲。(The simulation of NALM mode-locked laser shows that the femtosecond laser pulse can be obtained by mode-locked non-linear loop mirror.)