A semi-continuum approach is developed to describe the effect of (2 × 1) surface reconstruction on the elastic modulus of the silicon nano-plate. Youngs moduli
An estimation method of plasma density based on surface plasmons theory for surface-wave plasmas is proposed. The number of standing-wave is obtained directly f
A totally home-made 9-cell TESLA type superconducting cavity is made at Peking University. The cavity fabrication is according to DESY specification. The cavity