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In order to check the correctness and reliability of direct numerical simulation of the three-dimensional turbulence with the moderate or low flow Reynolds number, this paper adopts the pseudospectral method to direct numerically simulate the three-dimensional plane mixing layer.

为了验证直接数值模拟三维中低流动雷诺数湍流的正确性和可靠性，该文采用拟谱方法对三维平面混合层流场进行了直接数值模拟，并将数值模拟得到的结果与 Lasheras 等的平面混合层经典实验结果进行了对比。

Characteristic matrix method is used to analyse the spectral response of the Rugate filter approximately. Amplification using Rugate filter spectral compensation is analysed numerically.

由普通均匀多层膜的特征矩阵方法近似分析了设计出的Rugate滤波器的光谱响应，数值模拟了Rugate滤波器的光谱补偿效果。

By the technique of polynomial decomposition, controller design problem is finally solved numerically by semidefinite programming tools.

将特征根负定配置问题转化成多项式正定性验证问题，控制器设计问题通过多项式分解最终可由半定规划工具数值求解。

Transmission of Gaussian light pulse in sinusoidally dispersion-compensated system is studied by numerically simulating the solution of non-linear Schroedinger equation.

从含非线性薛定谔方程出发，通过数值模拟，研究了高斯光脉冲在正弦型色散补偿系统的传输，得到结论：当系统的二阶色散的平均值为零时可得到高斯光脉冲的稳定传输。

Besides main specula and diffraction spots,in order to prove bright points distributing regularly adjacent to main facular with 3CCD irradiated by laser,it was explained by the theory of Fourier optics and simulated numerically.

为了研究激光辐照3CCD，除观察到主光斑、衍射光芒外，主光斑附近呈现规则分布的亮点。

Objective To investigate the feasibility of using CT image-based computational fluid dynamics to simulate numerically the local hemodynamics in anatomically realistic human stenosed carotid bifurcations.

目的探索以CT图像为基础构建动脉血流动力学模型的技术方法，对颈动脉狭窄局部进行计算血流动力学（computationalfluid dynamics，CFD）数值模拟。

With help of WLC model of inhibition nervous system and lobster neural structure of Mulloney's, neuron electric spike of lobster stomatogastric neural system was numerically analyzed and the changing activity of gastric network and pyloric network were obtained.

利用抑制神经系统的WinnerLess Competition模型，通过数值方法分析Mulloney 型龙虾胃肠神经系统神经元的电位发放，得到胃研磨囊和幽门神经系统中各个神经元的电位发放和系统的节律变化。

Firstly, the inversion of the ground motion with the unknown parameters and limited measurements was studied by the substructural identification, and the least-square algorithm of unknown input was built. Secondly, based on the estimated input, structural parameter down to the element level was identified in time domain by extended Kalman filter algorithm. Several cases of a 6-story frame structure are numerically investigated.

首先，使用子结构识别技术，研究了未知参数、观测不完整条件下的地震动输入反演问题，建立了未知输入的最小二乘估计算法；其次，在估计地震动输入的基础上，使用广义Kalman滤波器方法，识别全部单元结构参数。

The model predictions agree well with the available correlations obtained numerically and experimentally, they are expressed as a function of porosity with no empirical constant, and they are helpful for understanding the physical mechanism for tortuosity of flow paths in porous media.

本模型与实验数据和数值模拟结果均吻合很好，且迂曲度仅仅是孔隙率的函数，没有经验常数，因而有助于人们理解多孔介质中弯曲流线迂曲度的物理机理。

The effect of low Reynolds number on the flow instability mechanism of transonic compressor was studied numerically.

数值模拟了低雷诺数下跨声速压气机设计转速下内部流场特性。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。