In this article we analyzed the corresponding relationships between the differential zero-crossing and the peak position of laser pulse after the quasi-gaussian laser pulses passing the active CR differential circuits.

On the basis of a circuit s transfer function,the waveform expression and amplitude variation of a semi-Gaussian shape nuclear pulse through CR differential circuit were analyzed,the relation between the peak time and differential zero crossover time of the pulse was discussed,and numerical calculations were performed using MATLAB software.

Every smooth CR homeomorphism from a real hypersurface of finite type to a real hypersurface in C~n is a CR diffeomorphism.

Microvalves are divided into active microvalves and passive microvalves according to driving mechanisms of microvalves in microfluidic systems.