The character and an algorithm about DRVIP(discrete random variable with interval probability) and the second kind DRVFP (discrete random variable with crisp ev
A nonlinear dual-porosity model considering a quadratic gradient term is presented. Assuming the pressure difference between matrix and fractures as a primary u
A coupled nonlinear Schr(o)dinger equations is considered in 2-D space. Based upon the conservation of mass and energy, local identities is established by the s
The optimum design method based on the reliability is presented to the stochastic structure systems (i. e., the sectional area, length, elastic module and stren