The method of modeling in frequency domain is used to establish the Fourier model and nonlinear algebra model of a rolling aircraft model at high angle of attack.

Linear image processing of pulse GMAW droplet photos based on frequency domain calculation;

Oscillation mechanism of potential field downward continuation in frequency domain and its elimination;

As in other electromagnetic sounding methods,static offset and correction also arise in frequency-domain electromagnetic sounding.

In this paper,the authors study the mathematical model for seismic wave propagation in complex underground medium,discuss the boundary element method for solving seismic wave equations in frequency-domain,and investigate the computational formation of separation of wave equations in frequency-domain.