A novel method which selects the approximate bases of high dimensional feature space based on the scale of linear independency is proposed;and after combining the presented method with the partial reduction strategy,SLS-SVRM(Sparse Least Squares Support Vector Regression Machine) is built.

The determination of the approximation fundamental solution is given along with the theo- rem of the existence and uniqueness for the solution of the discreted variational equation with the approximation fundamental solution,and the error estimat.

Electromagnetic scattering on fractal sea surface using Kirchhoff approximation

This paper presents a hybrid algorithm,combining analytic KA(Kirchhoff Approximation) and numerical CG(Conjugate Gradient),to compute the composite object and rough surface scattering.

The results by the small slope approximation are also compared with those of the Kirchhoff approximation with .

The comparison of chloroplast ultrastructure under salt stress between near isogenic lines in wheat;

The study discovered that under normal,arid and salt stress,the content of leaves free proline is much higher in wheat salt resistant that in its salt unresitant near isogenic line.