quasi-ordering

An interesting result is presented as such statements: For a group (G,·), a kind of correspondence can be established between the set of all of the partial orderings (quasi-orderings) which makes the (G,·) be partially ordered groups (or quasi-ordered groups) and the set of all of the quasi-quotient groups on G which is isomorphic to G (or subgroups of G).

当偏序结构减弱为拟序结构时 ,使该群成为拟序群的所有拟序结构组成的集合与一般的广义商群所组成的集合之间存在着一一对应关

This paper discusses two different definitions of quasi-ordering in college teaching materials published in recent years,analyzes their properties,differences and relationships,and gives a suggestion on how to clear up the contradiction of the same name with different meanings.

对近年出版的高等学校教学参考书和专著中关于拟序的两种不同的定义进行了讨论,分析了二者的性质、异同和关系,并给出了消除同名异义性的建议。

An application of sequential simulation to reservoir modeling;

序贯模拟方法在储层建模中的应用研究

The evolution of coherent structures in a 2-D time-developing mixing layer of the Oldroyd-B fluids are examined numerically.

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 results show that the turbulent coherent structures evolve gradually from the symmetrymode to the asymmetry mode.

结果表明,湍流拟序结构逐渐由对称模式发展到非对称模式;较小 Stokes 数的颗粒在流场中均匀分布,较大 Stokes 数的颗粒沿横向没有明显的扩散,而 Stokes 数为 1的量级的颗粒则大量聚集在大涡结构的外围。

It is found that coherent structures exist in the near-wall region, such as ejection and sweeping induced by vortex, low speed streak and streamwise vor.

在此基础上通过瞬时脉动速度场对圆管湍流的近壁结构进行了研究 ,并在近壁结构中检测出涡诱导的喷发和扫掠、低速条带和流向涡结构等拟序结构 ,而且发现低速条带和涡的诱导是低速流体喷发的必要条

Experimental study of coherent structures in planar jets and planar jet flames;

平面射流及平面射流火焰中拟序结构的实验研究

Characteristics of turbulent coherent structures over sastrugi in open channels;

沙波附近紊流拟序结构特性初步研究

Research on movement rules of spherical bubble near wall under turbulent coherent structure;

拟序结构下空泡近壁区运动规律研究

Large Eddy Simulation of Coherent Structure in Boundary Layer Turbulence over Flat Wall;

平壁湍流边界层拟序结构的大涡模拟

SADC (Sequential Analogue-Digital Computer)

时序模拟-数字计算机

build-virtual-machine program

编制虚拟计算机程序

virtual disk initialization program

虚拟磁盘初始化程序

simulator debug utility

模拟程序的调试应用

read-only memory simulator

只读存储器模拟程序

computer system simulator

计算机系统模拟程序

register transfer level simulator

寄存偏送级模拟程序

multiplexer simulator

多路转换器模拟程序

PULSE (Programme of Universal Logic Simulation for Electronics)

通用电子逻辑模拟程序

general read and simulate program

通用读出和模拟程序

virtual indexed sequential access method

虚拟索引顺序存取法

comparison of simulator output distribution

模拟程序输出分布比较

link terminal simulator

通信线路终端模拟程序

general production system simulator

通用生产系统模拟程序

nonprogrammable analog signal

非程序控制模拟信号

keyword indexing simulator

关键词标引模拟程序

compiler driven simulation

编译程序驱动式模拟