2.This paper,which bases on a modified BFGS update formula proposed by Li and Fukushima(2001),we propose a modified BFGS method for solving constrained optimization problems.
3.In this paper. On the bases of summarization and analysis of some kinds of numerical simulation methods,a simplified numerical scheme of modified CCW method is presented instead of the concept of shock wave strength of whithams CCW one.
4.Extrapolating the previous work by Zhao et al (Nucl. Eng. Des. 2000, 199(3): 315-326), probability-based constitutive models are constructed, respectively, on the bases of Ramberg-Osgood equation and its modified form. Scattering regularity and amount of the test data are taken into account.
