The sensitivity of the correction factor,which describes the combined effect of finite film thickness and the thick substrate in the measurement of atomic inner-shell ionization cross-sections by low-energy electron impact,to the adopted ionization cross-sections in the Monte Carlo simulation is discussed.

The study of atomic inner-shell ionization cross-sections by low-energy electron impact is significant in both theoretical researches and practical applications.

Research on the technology of vacuum forming inner shell to the whole door;

The distinctions of vibration and sound radiation characteristics of the inner and outer shells with three connected types of shells(without connected component,splint connected and annular plate connected) are compared using analytic method,and the revised value of sound-vibration characteristics of the double cylindrical shells is resolved based on the inner shell.