voltage equation
2.The fitting results show that current transporting model for the p-c-BN/p-Si thin film het-erojunctions is the same as current-voltage equation of diode and the donor concentration is 2. 04×1013/cm3 in the c-BN films.
6.For problems such as deformation, adsorbility, applied voltage and gap between thin beams actuated by electrostatic force in microdevices, a novel coupled electromechanical model of thin beams was deduced according to governing equation of thin plate equation and Laplace electrostatic field equation.
8.The equation for transient voltage at the tested line terminal of transformer when applying the lightning impulse test voltage superposed on power-frequency voltage to this terminal is mathematically derived in theory, and the effects of this transient voltage on the main and longitudinal insulation strength of the winding are also discussed.

