This is a important attempt for the numerical analysis methods of PDEs.
这将是对偏微分方程数值分析方法的新的重要尝试。
Result】Correlation analysis indicated that there were significant relationships among the PSES, PDES and PES.
结果相关分析表明，单边柱头外露率、双边柱头外露率和柱头总外露率之间存在极显著的正相关。
It indicates from the theoretical and experimental results that image enhancement by PDEs is an effective tool.
理论和实验结果表明，应用偏微分方程模型进行图像处理是一种有效的工具。
The finite element method is one of the efficient numerical methods to solve partial different equations (PDEs).
有限元法是解偏微分方程的有效方法之一。
STEP referenced many existed data exchange standards, especially PDES, and is still under perfecting and expansion.
STEP的制定吸取了以往各种数据交换标准特别是PDES的经验，并且正在不断完善和扩充。
A general approach based on evolutionary algorithms to inverse parameter identification problems of PDEs is introduced.
给出了一种利用演化计算方法求解微分方程中的参数识别类型反问题的方法。
Because the determining systems are a linear or nonlinear overdetermined PDEs, it is very hard to solve them completely.
由于决定方程组是超定的、线性的或非线性的偏微分方程组，完全求解它们非常困难。
Recently, the nonlinear methods, especially image segmentation methods based on PDEs have attracted more and more attentions.
近年来，非线性的方法，尤其是基于pde的图像分割方法受到人们越来越多的重视。
In this paper, some methods are introduced, which process images based on PDEs and variational approaches, as well as analyzed.
本文介绍了主要的基于变分偏微分方程的用于图像处理的方法，并且对每种方法进行了分析。
The study results indicate that parallel discrete event simulation(PDES) has remarkable potential in improving the simulation speed.
世界各国的研究结果表明，并行离散事件模拟在提高模拟速度上表现出较大的潜力。
So we study the concept of the time management in PDES and HLA. Then we bring forward the time management method of the multi-bridge.
因此，本文借签了HLA和PDES中时间管理的概念，提出了多元桥接成员的时间管理。
And then, the theory of curve evolution, how to solve the PDEs model based on level set method and its calculation methods are expatiated.
其次详细介绍了曲线演化理论、偏微分方程模型的水平集方法求解以及数值计算方法。
With Eulerian formulation the partial differential equations (PDEs) of curve evolution are given and the two curves will stop on the desired boundary.
利用欧拉公式，得到曲线演化的偏微分方程。那两条曲线将在想得到的边界停止。
Recording and analyzing of running information of PDES can help to dig out running errors and performance bottlenecks, which can assist developer code to higher level.
对并行离散事件仿真运行信息展开记录与分析有助于发现程序逻辑错误和性能瓶颈，可为开发人员编写高质量仿真程序提供参考。
Meshless method is one kind of powerful tool for numerical solutions of partial differential equations (PDEs), and it has local technique and element-free characteristics.
无网格法是一种数值解偏微分方程(PDE)的功能强大的工具，它有当地的技术和元素的特点。
By using the relation between the stochastic, differential equations and the PDEs, we estimate the risk of investing stocks, and obtain the dynamic traces 'of risk functions.
并利用随机微分方程和偏微分方程之间的关系，对股票投资风险进行了估计，得到关于风险指标的动态轨线。
Our algorithm avoids both the expensive computations of texture matching and the time-consuming solutions of complicated PDEs, and therefore is easy to understand and implement.
该算法不需要大量的纹理匹配计算和复杂的偏微分方程求解，易于理解和实现。
We made the following research in image denoising based on PDEs. On the solution of nonlinear partial differential equations, the check-board finite difference scheme is introduced.
本文在基于偏微分方程的图像去噪方面进行了以下的研究：就非线性扩散偏微分方程的解法，引入了跳点有限差分格式。
The ignition-detonation performance of two-phase valveless pulse detonation engines(PDEs) with the inner diameters of 50 mm and 120 mm in different operation cases was investigated.
针对两相无阀脉冲爆震发动机（PDE），研究了点火能量、工作频率、发动机直径、进气方式和燃料种类等对PDE点火-起爆性能的影响。
Image denoising with second order non-linear diffusion PDEs often leads to an undesirable staircase effect, namely, the transformation of smooth regions into piecewise constant ones.
利用二阶的非线性扩散方程进行图像去噪易产生具有“阶越效应”的去噪结果，也即使分段光滑的图像变为分段常量的。
The presented algorithm avoids both the expensive computation of texture matching and the time-consuming solving of complicated PDEs, and therefore is easy to understand and implement.
该算法不需要大量的纹理匹配计算和复杂的偏微分方程求解，易于理解和实现。
The presented algorithm avoids both the expensive computation of texture matching and the time-consuming solving of complicated PDEs, and therefore is easy to understand and implement.
该算法不需要大量的纹理匹配计算和复杂的偏微分方程求解，易于理解和实现。
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