In this paper,the characteristic of scattering field distribution for underwater flat structure with multiple edge shape is investigated and analyzed in detail based on the Boundary Integral Method(BIM) with taking into account practical engineering application,for instance,free field measurement for underwater acoustic passive material.

In order to solve the distillation separation sequence synthesis problem effectively, super or neighborhood structure must be researched, and it is the foundation of realizing optimization algorithm.

This paper analyses those problems and propose a solutions that determined the pixel s feature value by using the vision perception information of pixel s neighborhood structure.

In this paper, we describe the optimization model and the neighborhood structure on the MSAP, then propose a scheme to solve the MSAP using Simulated Annealing Algorithm.

Simulation analysis of MR damper Control over seismic responses of adjacent structures;

Optimal design parameters of adjacent structures linked by damper;

The reduced order optimum method for the placement and control law design of control devices between two adjacent structures;

On the basis of equivalent linearization, this article deduced a numerical formula to compute the random response of adjacent buildings linked by energy dissipating devices under the disturbance of kanai-Taji-mi spectra, and investigated the application scope of this seismic resisting system.

This paper presents a basically-analytical method for semi-active control of seismic responses of adjacent buildings with time-delay in control based on discrete-time variable structure control algorism.