目的建立一种基于拟序关系的推广的粗糙集模型。
Aim To establish a generalized model of rough set theory based on quasi order relation.
这意味着网格湍流能有效抑制剪切层中的大涡和拟序结构。
This means that grid turbulence can effectively suppress the large-scale vortex and coherent structure in the shear layer.
分析比较了不同雷诺数下气相拟序结构对于颗粒扩散的影响。
The gas coherent structure influence of different Reynolds number on particle dispersal was analyzed.
弄清开缝钝体尾迹的拟序结构是认识其火焰稳定机理的基础。
To understand flame holding mechanism of a slotted bluff body based on the resolution of its coherent structure in the wake.
本研究为通过控制湍流拟序结构进而控制湍流提供了初步依据。
The current research provides the basis of investigating the control of turbulent shear flows through coherent structures.
论文成功研制了气固两相圆湍射流拟序结构实验台及其流动显示系统。
The gas-particle round jet coherent structure experimental system and the visualization system were successfully designed and manufactured.
笔者深信准确掌握拟序结构的动力学规律，对于预测和控制湍流将有极大的推动。
It is believed that the prediction and control of turbulent shear flows will be achieved when the dynamics of the coherent structures is well understood.
笔者强调准确的湍流场数据库建立的重要性，它是定量描述和研究拟序结构的基础。
It is shown that the accurate database of turbulent fluctuations plays a significant role in the quantitative investigation of the structure patterns.
湍流拟序结构与泥沙及床面相互作用的机理，是目前国内外泥沙学术界研究的热点领域。
The coherent structure of the turbulence and the interaction of the sediment and the bed are now much studied all over the world.
平面混合涡结构的演化和旋涡相互作用的研究，是湍流拟序结构研究中的两个重要方面。
Vortex structure in shear layer and the interaction among vortices are two important aspect of coherent structure …
混合层是一种在化工过程中经常见到的基本流场，对该流场拟序结构的研究具有理论和实际意义。
The evolution of coherent structures in a 2-D time-developing mixing layer of the Oldroyd-B fluids are examined numerically.
这时就在有着不同目的地的不同人群间就浮现一种不断移动的界限，这些界限就是拉格朗日拟序结构。
What emerges is a shifting pattern of borders between groups of people with different goals. These borders are Lagrangian coherent structures.
等离子体中各种局域拟序结构的研究对于认识、理解和利用等离子体有重要的实际意义和科学意义。
The study of local coherent structures in plasmas is important to understanding and making use of the plasma.
紊流边界层拟序结构，是近几十年来紊流研究中最重要的发现，也是目前紊流研究中的一大热点问题。
The coherent structure of turbulent boundary layer is the most important discover and the most interesting problem of turbulence research in the last several decades.
结合探针信号的自相关函数，研究流场湍流结构，发现近尾可能存在大涡拟序结构，而在远尾则没有湍流。
By studying the autocorrelation function of the probe signal, it is found that the large eddy quasi ordering structure likely exists in near wake, but there is no turbulence in far wake.
本文依据湍流边界层拟序结构理论的基础，研究湍流反馈控制模式，在湍流流场中输入控制，达到强化传热的目的。
The article is based on coherent structures of turbulent boundary layer theory, studies the feedback control model of turbulence, and inputs control system to get the enhancement of heat transfer.
拉格朗日拟序结构理论是10年前被乔治·霍勒（GeorgeHaller）揭开，他当时在罗德岛上的布朗大学任教。
The theory of Lagrangian coherent structures was started about ten years ago by George Haller, who was then at Brown University, in Rhode Island.
研究了化学反应放热与流体混合运动间的耦合作用，分析了前者对可压混合层厚度、拟序结构及产物生成率等方面的影响。
The interaction of heat release and fluid dynamics is studied. The effects of the latter on the mixing growth, the coherent structure and the rate of product formed in the mixing layer are analyzed.
关键的一点是，拉格朗日拟序结构中的界限可以在群体间互换，正如一个人被挤进了错误的人群接着随着人群驶向错误的方向。
Crucially, they form a barrier to exchange between groups, as anyone who has been caught up in a crowd and pulled inexorably in the wrong direction will know.
结果表明：大涡模拟技术可以得到发动机内湍流流场中详细拟序结构，时均湍流模拟对于火箭发动机内流场时均量的模拟仍有较好的工程精度。
It was shown that the detail construction of turbulence in rocket can be predicted by LES, and the time-averaged method also can give the result with satisfiable engineering precision.
在第4节研究了偏序集拟阵的零度函数。
In Section 4, we study the nullity functions of poset matroids.
在第5节，我们用偏序集拟阵的余秩函数来研究偏序集拟阵与其对偶之间的关系。
In Section 5, we use the corank function of poset matroids to investigate the relationship between a poset matroid and its dual.
根据高分辨率层序地层理论，利用稀疏脉冲拟波阻抗反演技术在塔中地区进行了储层预测。
Based on the theory of high resolution sequence stratigraphy, the reservoirs in Tazhong area was predicted using the technology of constrained sparse pulse inversion.
对拟内正则序半群给出了在理想和格林关系理论方面的若干刻划。
Ideal and Greens relation theoretical characterizations of quasi intra regular ordered semigroups are given.
基于模糊数空间的一种新的序关系，给出了可微的凸模糊数值函数、拟凸模糊数值函数的刻划定理，并讨论了它们的关系。
Based on a new concept of ordering, the characterizations of differential convex fuzzy-valued function, quasi-convex fuzzy-valued function are given and their relation is discussed.
将时间表理论中关于拟全序的相邻交换原则改进为关于偏序的情形。
The adjacent pairwise interchange principle plays an important role for some problems in scheduling theory.
第二章研究了一类序富足半群，即所谓的SNF -序ic拟适当半群。
In Chapter 2, we research a class of ordered abundant semigroups, so-called, SNF-ordered IC quasi-adequate semigroups.
方法：本次研究属于观察性研究，拟采用直接观察方式将符合纳入标准的样本序贯检测，在同一适宜的条件下进行腋温、足皮温和双下肢动脉彩超的检查。
Methods the study belonged to an observational research, we used the way of direct observation to detect samples which consistent with the internalizing standards in order.
方法：本次研究属于观察性研究，拟采用直接观察方式将符合纳入标准的样本序贯检测，在同一适宜的条件下进行腋温、足皮温和双下肢动脉彩超的检查。
Methods the study belonged to an observational research, we used the way of direct observation to detect samples which consistent with the internalizing standards in order.
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