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- A new point is proposed to solve two-dimensional wave equation on square space region, and applying skew direction difference schemes leads to a calss of explicit parallel difference methods, which can be very cheaper to solve in practice. 对于二维波动方程初边值问题，提出了一种新的求解思想，利用斜向隐式差分格式和边界条件，巧妙地设计出一类显式计算的并行算法。
- parallel difference scheme 并行差分方法
- In our design, we have implemented TDM to eight parallel difference input signals, 8B/10B encoding/decoding, high-speed transmission through a single fiber. 在我们的设计中,实现了对8路并行差分信号的时分复用/解复用,8B/10B光纤信道的编码/解码等相关处理,实现了多路信号在单一光纤信道的高速传输。
- It can be implemented by simple finite difference scheme with a significantly larger time step. 模型允许选取较大的时间步长，可以用简单的有限差分格式实现。
- The numerical simulation of this model was analyzed through first-order upwind difference scheme and QUICK scheme. 通过一阶迎风格式及QUICK格式,求解出该模型的数值解。
- A clase of leap-frog finite difference scheme with higher stability propertiesfor a hyperbolic equation Ut+aUx=0 are proposed in this paper. 本文提出了一种数值求解双曲方程Ut+aUx=0的高稳定性蛙跳显格式。
- In order to capture the shock wave, Murman Cole type of finite difference scheme is used to calculate spatial source distribution. 用 Murman- Cole差分格式计算空间场源强度 ,以捕捉激波。
- The energy equations of the oil film and the bush are solved simultaneously by using an efficient finite difference scheme. 用一有效的有限差分法同时求解油膜和轴瓦的温度控制方程。
- The numerical solution of incompressible viscous flow over an aerofoil is obtained by H-type grids and a special difference scheme. 本文用H型网格和特殊的差分格式数值求解了粘性不可压缩叶型绕流。
- Based on this method, a difference scheme is derived for the numerical solution of diffusion equation on the structured quadrilateral mesh. 在此基础上推导了在结构四边形网格上求解扩散方程的线性精确差分格式。
- A finite difference scheme based on semi-vectorial wave equations is used to study the dispersion properties of photonic crystal fibers (PCF). 采用基于半矢量波动方程的有限差分法研究了光子晶体光纤(PCF)的色散特性。
- Key words Partial integro-differential equation fractional calculus nvolution quadrature finite difference scheme second order fully discrete scheme. 本刊中 包含“偏积分微分方程;分数次计算;卷积积分;差分格式;二阶全离散.
- This paper studies the necessary and sufficient condition of uniformly convergent difference scheme for the elliptic-parabolic partial differential equationwith a small parameter. 本文研究小参数椭圆-抛物偏微分方程一致收敛差分格式的充要条件。
- By means of nonsymmetric difference schemes, we split up the space domain into several subdomains for which the solutions can be separately found and the computations can be made in parallel. 利用非对称差分格式，通过格式组合，将空间区域分裂成若干子区域，然后使每个子区域独立求解，且各子区域上的计算可以并行。
- This paper generalizes the two dimensional Crank Nicholson difference scheme from constant coefficient to the condition of variable coefficient with interpolation by integral. 利用积分插值法，把二维Crank－Nicholson差分格式，由常系数推广到变系数情形。
- In the case of large time step taken in calculation,implicit difference scheme is adopted in the discreted algebraic equations to ensure the numerical stability of the model. 通过选择研究对象各环节的控制容积数和时间步长，可使模型满足精度和计算速度的不同需要，在大时间步长时，采用了隐式差分格式，使得模型具有良好的稳定性。
- In this paper,a modified Dennis difference scheme for the advection-diffu- sion equation is given,which has the second order accuracy and the self adjust- ability. 本文改进了关于对流-扩散方程的Dennis 格式,不仅保持了二阶精度,且具有自调性。
- Whether it rains or not makes no difference to me. 下不下雨对我来说都一样。
- The railway lines run parallel to the road. 铁路线和那条道路平行。
- Compact finite difference scheme (CFDS) on non-uniform meshes and their truncation errors are constructed by matching the Taylor series coefficient expansion. 摘要采用泰勒展式系数匹配的方法构造基于非等距网格的紧致差分格式并得出了它的截断误差。
