Thin films of 8 hydroxyquinoline zinc (Znq 2) formed under different evaporation conditions were investigated by scaning electron microscope (SEM).

Based on the strict academic analyses and proof, a new stable condition of the passivity-based control system is proposed.

The stable condition of multi wavelength optical cavities is discussed by the method of ray pulse matrices, and the formula of net GVD is deduced.

By using stable conditions and misalignement sensitivity D of optical resonators, optimization of low-loss cavity parameters in the exponential decay reflectivity measurement method is investigated.

An improved analyzing way of the stability condition about a liner time-invariant SISO system;

On the basis of high-order shape function of displacement containing frequency factor, the dispersion equation of wave propagation in finite element meshes is derived from two -dimensional wave equation, and based on it, the wave motion stability condition is proposed.

The stability condition is r(or r≤1) when the truncation error is 0(τ2+h4) (or 0(τ+h2)),they are all better than the other explicit difference schemes of the same accuracy.

An analysis of stability conditions for an explicit scheme of advection-diffusion equation in finite difference was made in this paper.

This paper introduces a conditionally stable method for the direct integration of the damped vibration equations and its step -by -step solution procedures.

The present method is conditionally stable if δh2τ>12.

Using the boundary function method,this paper studied a conditionally stable Dirichlet problem for a kind of nonlinear perturbed systems.