数值分析

A method for the generation of Weierstrass fractal surface is presented,based on Helmholtz equation,with the Kirchhoff approximation,the calculus formula of light scattered field on the 1-D Weierstrass fractal suface is deduced.

采用Weierstrass分形函数模拟实际粗糙表面，从简谐光波满足的亥姆荷兹方程出发，利用基尔霍夫近似推导出一维Weierstrass分形粗糙表面的光散射场的积分公式，考虑遮蔽效应后数值计算并分析了表面散射光强的角分布特性。

The damage of aqueduct was studied by numerical simulation and the direct index methods were proofed.

对渡槽结构进行系列数值仿真分析，并结合损伤直接指标法进行验证。

The main research task of this paper is as follows: The simulated annealing algorithm is put into identifying aquifer parameters.

通过实例的数值实验，对其中存在的问题进行了一定的分析和讨论。

After analysing the existing smooth orientation interpolation methods we proposed a smooth orientaion interpolation method based on cubic cardinal spline in quaternion space. This method possesses the following advantages: interpolation, C〓 continuity, accurate evaluation of the quaternion value at arbitrary parameter, transparent to the users, adjustable parameters for controlling the velocity of orientation change.

在分析现有的朝向光滑插值方法基础上，提出了基于四元数空间三次C样条的朝向光滑插值方法，该方法具有插值、C〓连续、任一参数处的四元数值可精确求得、对用户透明、可以用参数调节关键帧处物体朝向变化的速度等优点。

An arch dam has been used as the example to describe the crack position and cracking process.

自适应有限元是一种通过自分析自动调整算法以改进求解过程的数值方法。

The archimedes spiral cord modulating chopper's exposure efficiency was theoretically analyzed and numerical simulated, and its impact on the following signal processing was obtained.

对阿基米德螺旋线调制斩波器的曝光效率进行了理论分析和数值模拟，得到斩波器曝光效率对后续信号处理的影响。

To improve the braking work of the swing arrestor used at the end of the marshalling yard,the mechanical property,the stroke of cylinder and the braking work is discussed.

为了提高铁路编组站尾部摆动式停车顶的制动能力，分析了摆动式停车顶的力学性能、油缸的行程和制动功，通过选择θ角的数值，来实现停车顶合理的衬套磨耗和较大的制动能力，从而提高车辆通过的安全系数和车辆编组作业效率。

Finally we analyze the results of the linear equation by using the modified equation associated with GRP scheme.

进一步地，我们将用modified方程来分析线性方程的数值实(来源：Aad5dBC论文网www.abclunwen.com)验结果。

The error analysis of asymptotic approximation of finite series expansion is also given. Our method avoids choosing the integral length of the reentrant comer, and can be used to calculate the charge on the conductor conveniently and efficiently. Numerical examples are presented to demonstrate the efficiency of the method.

本文算法克服了邓肯矫正需要选择角点积分区域的不足，有效地校正了导体角点奇异性引起的电容参数提取的计算误差，最后给出了算法的数值实验与分析结果。

The basic equations are expanded in asymptotic linear equations of each order according to small parameter of incident wave's field by perturbation method.

近年来随着计算技术的发展，有限元等数值法已广泛应用于波与结构相互作用'的计算分析。

By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.

到它被攻陷的时候，里面多数的犯人是写了反对政府贪污文章的作家。

The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.

在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色，卵在发育96h后卵基本全部孵化。