mathematical group

The set of molecule symmetrical operation meets the definition of mathematical group .

分子的全部对称操作的集合完全符合数学群的定义。

A systematic mathematical model group has been developed to simulate the billet section temperature distribution , austenite structure evolution and products properties .

开发了用于模拟高碳钢高速线材生产过程中断面温度分布，奥氏体组织演变和产品性能的系统数学模型组。

Results : The mathematical disabilities group get significantly lower scores in all subtests and factors of the Working Memory Test Battery except the Space Ordering , Backwards Space Recall , and Digit Deletion subtests .

结果：数学障碍组除空间排序、空间后退以及数字划销3个分测验外，在工作记忆成套测验其它各分测验及各维度上的成绩均显著低于学习正常组（P0.001～0.05）。

Practice Research on Senior School Students ' Application Capability Training in Mathematics Through Establishing the Mathematical Modeling Interest Group

利用数学建模兴趣小组培养学生数学应用能力的实践研究

At the same time implemented machine proof of some mathematical theorems ( Group theory ) and logical Inference of statements .

与此同时，实现了一些数学（群论）定理的机器证明，命题的逻辑推演等。

The group encryption communication and group signature-authentication of power system with above characteristics are put forward . The mathematical structure of group encryption communication system , encrypt-decrypt algorithm and the generation methods of group secret key , group public key are given .

文中提出具有这些特征的电力系统集团加密通信与集团签署认证系统，给出了集团加密通信系统的数学结构，加密解密算法和集团秘密钥匙、集团公开钥匙的生成方法；

Automatic road extraction from SAR images based on mathematical morphology and phase group

基于数学形态学和相位编组SAR影像道路自动提取

The Mathematical Model of Bubble Group Noise

群体空泡噪声的数学模型

A Theorem About the Mathematical Structure of Renormalization Group Equation

关于重整化群方程数学结构的一个定理

In this paper the mathematical model of bubble group noise are introduced under the arbitrary conditions by using the method of Euler .

本文采用空间点观点的处理方法，得出任意给定条件下，群体空泡噪声的数学模型。

The mathematical model is a group of stiff equations and resolved by two point implicit method , the experiment results agree well with simulation .

建立了带有中间贮罐的混合溶剂间歇萃取精馏过程的恒摩尔持液模型，并运用两点隐含法求解该模型，结果表明，模拟计算结果与实验结果吻合较好。

Based on the median theorem and the diffraction principle , a novel mathematical model for particle group size distribution was presented in which the actual size distribution of particle group can be expressed equivalently with finite kinds of single size particle group .

通过分析粒子群的Fraunhofer衍射环的能量分布情况，从中值定理出发，建立了以有限种等效单径粒子群组合来确定实际粒子群粒径分布的数学模型。