查询词典 numerical

The angular distribution of the scattering coefficient of the HH polarization is obtained by numerical implementation, the influence of the fractal dimension, the special fundamental frequency, the scale interval, the permittivity of substrate medium, the permittivity and the mean layer thickness of intermediate medium, the root mean square of rough surface, and the frequency of the incident wave on the bistaticscattering coefficient is discussed.

通过数值计算得到了HH极化下双站散射系数随散射角的变化曲线，讨论了分维、空间基频、标度区间、底层介质介电常数、中间介质介电常数和厚度、粗糙面高度起伏均方根及入射波频率对双站散射系数的影响，得到了平面波入射一维带限Weierstrass分形分层介质粗糙面散射系数的分形特征、基本特征、分区特征和随频率变化的特征。

And then the partially polarized and coherent Gausian-Schell beam is taken as a numerical example to study the influence of the polarized grating TE and TM complex transmission and some parameters of the incident PGSM on the polarization degree of the diffraction field and the diffractive orders's angular correlation in details.

以部分偏振的高斯-谢尔模型光束为例，数值分析了偏振光栅TE和TM波的复振幅透过率、入射光束的光学参量对衍射场偏振度和场中各衍射级次的角相关的影响。

The influence of scattering intensity and angular distribution on scattering characteristic for different beam width is discussed by numerical simulation,and compared with those for the plane wave.

通过数值计算，讨论了散射强度及角分布在不同波束宽度情况下对其散射特性的影响，并与平面波的情况做了对比。

Many numerical results are provided to demonstrate the high resolution of the proposed methods. Compared with the conventional MUSIC method, the proposed methods are insensitive to angular signal distribution.

仿真实验结果表明，这些分布式目标波达方向估计方法都具有较高的分辨能力，与基于点目标假设的常规MUSIC方法相比，本文提出的分布式目标DOA估计方法对信号源的分布特性不敏感。

Using the numerical methods, the effects of the rotating angular frequency and oil film characteristic parameters on rub-impacts of rotor systems are studied.

但由于对油膜力的研究同样处在不成熟阶段，并且模型也比较复杂，很难对它进行理论分析。

In example of two -dimensional numerical analysis, the roekfall motion trace, angular velocity and jumping height in horizontal and vertical directions were defined, which provided necessary calculation data for engineering measures of disaster prevention and mitigation.

在二维落石运动路径的实例数值分析中，明确了落石水平垂直方向的运动路径、角速度和跳跃高度，为防灾减灾的工程措施提供必要的计算数据。

Based on the laminate theory, a laminate weakened by damage is treated as an anisotropic thin plate. Using the complex potential method in the plane theory of elasticity of an anisotropic body, the series solution of finite anisotropic thin plate containing an elliptical inclusion is proposed with the help of Faber series. A hybrid element with an elliptical inclusion for anisotropic materials is obtained by using the hybrid variable principle, and the element efficiency is verified by numerical examples. The state of the damage is modeled by an elliptical soft inclusion, and using the point stress criterion based on characteristic curve and Yamada-Sun etc. criteria, the prediction of the strength of a composite laminate with damage is set up. The effects of various parameters on the stress distribution and the residual strength of a composite laminate weakened by damage are detailedly studied.

首先基于经典层板理论，将复合材料层板的弹性问题化归为均匀各向异性板来求解；采用各向异性体平面弹性理论中的复势方法，以Faber级数为工具，给出了有限大含椭圆核各向异性板弹性问题的级数解形式；利用杂交变分原理，成功导出含椭圆核各向异性板杂交应力有限元，并用算例验证了该单元的可行性和有效性；采用含刚度折减椭圆形弹性核的冲击损伤模型，引入基于特征曲线和Yamada-Sun破坏准则的点应力判据，建立了含损伤复合材料层板剩余强度的分析方法；通过数值计算详细讨论了各种几何参数对损伤层板应力分布、剩余强度的影响，得到了一系列对工程应用具有实用价值的结论。

In this paper,we try to investigate the numerical characteristics of present value of annuities with random interests.

本文试图在随机利率条件下研究年金现值的数字特征。

Numerical and experimental results of the new type of annular branch hybrid demonstrated the accuracy and efficiency of the proposed method.

通过新型环形分支电桥的数值结果与实测结果验证了本文方法的准确性和有效性。

This model can be used to the numerical simulation of anomalistic river boundary.

该模型可适用于不规则边界河道的数值模拟。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新