large matrix
1.In this paper, we compared two classes of gridding algorithms, the large matrix resampling algorithm proposed by Claudia et al and the double-sized gridding algorithm proposed by Jackson et al, with respect to the speed of computation and the quality of resultant images. First, it was shown that, while capable of getting images with similar quality relative to those obtained by the latter, the former algorithm is faster and easier to implement.
7.On an important assumption that the voltage angles of all buses are approximately equal to one another,the origi- nal large-sized variable Hessian matrix can be reduced into an equivalent,small- -sized constant one,which is used directly to correct the generations.
8.In this article, the large deformation and the matrix of geometric rigidity is calculated. The whole stability of the boiler structure is analyzed by two types of buckling methods in the ANSYS, so as to get the Load-Displacement curve and the buckling load. By the two Buckle analyses of ANSYS software, the overall stability of the boiler for a qualitative analysis, the simulation of nonlinear load-displacement relationship curve and the structure buckling load were calculated.
