For the five-point discrete formulae of directional derivatives in the finite point method,overcoming the challenge resu......

The finite difference method(FDM)is an important numerical approach for simulating the propagation of seismic waves,and ......

The stability of axially accelerating viscoelastic beams is a significant problem that has been studied analyvtically an......

In this article,novel smoothness indicators are presented for calculating the nonlinear weights of the weighted essentia......

在时敏目标精确打击、导弹预警、光学遥感和测绘等应用过程中,光学载荷成像定位精度是最为重要的性能指标之一。光学载荷成像变换......

设计蝶形多模干涉(MMI)耦合器时,需要根据所要求的功率分割比率确定器件的结构参量。作为矩形多模干涉耦合器的特征参量的耦合长度......

提出求解三维傍轴近似波动方程的交替方向隐式并分格式，并用它模拟Ｔｉ：ＬｉＮｂＯ３方向耦合器。......

本文在分析河水与地下水相互作用规律的基础上，提出了河流－含水层相互作用水力耦合模型的建模思路、数值解法及应用实例。河流模型采......

研究了一类含中非线非线性反应扩散方程组的数值解法，把上下解方法应用到相应有限差分系统上，得到两个迭代序列。可以证明，当反应项以......