This article aims at studying how discourse analysis works in inter-cultural communication, focusing on how face system interacts with cultural exchange, how people choose the strategy of communication.

Surface systems composed of low-dim ensional nanomaterials have been attracted extensive atten-tions and applied in many fields such as electrocatalysis,magnetism,en ergy storage and sensing.

Geometrical component analysis of plane system;

We have introduced a method for the calculation of electron transport in a multi_terminal quantum system based on the recursive Green s function technique.

We discuss the different effect of gauge transformation in both classical system and quantum system,and investigate the variances of dynamical quantities and the effect on geometric phase,periodicity and adiabaticity under gauge transformations.

According to the understanding of double wave function theory to the quantum system description,that is, the probability and the formula to calculate mean values in ordinary quantum mechanics are from the average of double wave description over a certain ensemble, the ensemble is considered as the probability fluid of continuous meson.