离散流

The approximate method of discretization may be used to calculate the persistent spin current in mesoscopic ring.

用离散化的近似方法也可以计算介观环中的持续自旋流。

In this research, the plane 2D mathematical model under Cartesian coordinate system and the

首先建立了直角坐标系正交网格下的平面二维数学模型及复杂边界适体坐标条件下的三维紊流数学模型，对方程的离散差分格式、控制方程的求解、初始边界条件、动边界处理等问题进行了分析研究，并编制相应的计算程序。

The status of the flow in manifold systems will directly affect the efficiency and security of an exchanger. With the help of discrete model, the characteristic of the flow in manifold systems will be got.

流体在并联管组换热器中的流动状况将直接影响到换热器运行的效率和安全性，通过离散模型计算方法可得到流动工质在并联管组内的流动特性。

E. the discrete scheme of FBEM and the inner damping method of continuity equation, the author made numerical analysis of viscous flow field in cascade and cascade experiment in the experimental wind tunnel of Section 204 of Harbin Institute of Technology. The calculated results are in agreement with the experimental ones.

为进一步验证本文提出的有限边界元素法离散格式和连续方程的内部阻尼法的可行性，作者对叶栅内的粘性流场进行了数值分析，并与在哈尔滨工业大学204教研室的实验风洞上进行的叶栅实验结果进行了比较。

The results show that the frequency characteristic corresponds with vortex structures; the detail and approximate characteristics of signal are reflected by wavelet coefficient at different scales; the coefficient map of continuous wavelet transformation reveals the self-similarity of the signal.

采用傅里叶变换和小波变换技术，实现了混合层密度脉动信号的频谱与多分辨率分析，结果表明：信号的频域特性与流场的涡结构相对应，不同层面的离散小波系数反映了不同尺度下信号与图像的细节和平滑近似特征，连续小波变换系数图定性的反映了信号的自相似特征。

In cases where an equivalent continuum cannot be defined, discontinuum network simulation is a viable alternative. Howerer, these models are very demanding in terms of computer resources, which restraints their application to engineering practice.

首先，提出了一种基于混合边界元—管流的改进的三维离散裂隙网络模型，并研究了提高模型计算能力的方法，使其可以具有更好的工程应用性。

Experimental results demonstrate that, contour connection algorithm is effective for 3D reconstruction with discrete phase in two-phase flow.

实验结果表明，本文采用的断层轮廓线拼接方法对两相流中离散相的三维重建是有效的。

We use discrete Ricci flow to find these two special metric from special prescribed target curvature.

这些度量是通过对目标曲率进行特殊的设置，然后由离散的Ricci流计算而得。

In this paper, we introduces discrete Ricci flow as an efficient and powerful mathematics tools, by which we can computer conformal metric and conformal structure of the surface.

本文引入离散的Ricci流方程这个强大的数学工具，成功地计算出了曲面的共形度量和共形结构。

A product management model is built in the process of designing and implementing the ERP(Enterprise Re-source Planning)system.It is combined with the characteristics of product in discrete industries.Logistics flow is center and schema is masterstroke in the model.

在企业资源计划系统的设计与实现中结合离散行业的生产特点，提出了在ERP系统中强化流的概念，建立以物流为核心、以计划为主线、紧密结合企业管理模式的生产管理模型。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。