查询词典 mathematical

In chapter 2 of this dissertation, we give the mathematical definition of selfsimilarity, and describe some of its properties. How to justify a self-similar process and get its autocorrelation coefficient (or self-similar parameter) are also discussed.

由于对于非马氏过程的排队系统进行数学分析是十分困难的，因此，对自相似业务流特性及网络性能的研究，大多采用某种近似的数学求解，或直接进行计算机仿真，这就需要有快速、准确的自相似序列生成方法。

Based on these, a general mathematical model for the polar autocorrelation function is set up and the theoretical basis of the polar correlation method is presented.

在此基础上，建立了一般的极性相关函数的数学模型。从而论证了极性相关法的理论依据，拓宽了极性相关法的适用范围。

Autoignition ; combustion ; mathematical model ; dual fuel engine

着火过程；燃烧过程；数值模型；双燃料发动机

Quantum Automata, a kind of mathematical model of quantum computation, has become an active research area gradually.

量子计算的一种数学模型——量子自动机的研究也成为一个日益活跃的研究领域。

Referring to HMIS public data coding criterion, parts coding management module was designed and established, and parts coding automatic generation function was realized. According to the data collection methods in the reliability theory, maintenance record collection principle was determined, and maintenance record management module was established. Then, by using reliability theory and mathematical statistics method, data statistic analysis and malfunction analysis modules were established, and components failure data statistics, choosing of life distribution law, and predicting of maintenance period were realized.

参照HMIS公用数据编码规范，设计并建立了零件编码管理模块，实现零件编码自动生成功能；根据可靠性理论中数据的收集方法，确定了维修记录收集原则，建立了维修记录管理模块；继而，利用可靠性理论及数理统计方法中对数据的统计分析，建立了数据统计分析、故障分析模块，实现了对零部件故障数据的统计、寿命分布规律的选择及对维修周期的预测。

The tax payment appraised the system the appraisal method, mainly is through the use related mathematical model, establishes the tax payment appraisal target system and the target peak value system, carries on the automatic computation analysis to the data message, by discovers deviation to surpass prearranges the standard the questionable point factor, automatically screens the taxpayer by the computer which has the questionable point.

纳税评估系统的评估方法，主要是通过利用相关数学模型，建立纳税评估指标体系和指标峰值体系，对数据信息进行自动计算分析，以找出偏离度超出预定标准的疑点因素，由计算机自动筛选出有疑点的纳税人。

In recent 20 years, System identification as one of the important ways to establish mathematical model of the controlled object has been developed rapidly and become one of the automatic control theory, a very active and important branch.

系统辨识作为建立被控对象数学模型的重要途径之一，近20年来获得了迅速的发展，已成为自动控制理论的一个十分活跃而又重要的分支。

By the end of that year, it was proven that the gene for CHD was an autosome recessive (through repetitive matings of CHD dogs) and mathematical models one which pedigrees could be tested were established.

到了年底，据证实，该基因对冠心病是一种常染色体隐性遗传和数学模型，其中之一系可以测试确定。

Auxiliary function is an important method of solving problems and used widely in mathematical analysis.

辅助函数构造法是数学分析中一个重要的思想方法，在数学分析中具有广泛的应用。

This article is focused on the use of Mathematica graphics functions to perform some abstract concept of mathematical analysis, the conclusion of the understanding; auxiliary function for the extreme value; and its application in the series.

本文主要讨论的是利用Mathematica的绘图功能来演绎数学分析中某些抽象的概念、结论的理解；辅助求函数的极值；和它在级数中的应用。

However it can often be frust ating for a child when people are unable to pronounce their name.

但它往往可以令人沮丧的一个孩子当人们无法断言他们的名字。

All these compounds were obtained from this genus for the first time. Compound, 4-cumylphenol, was a new nature product.

所有化合物均为首次从本属海藻中分离得到，其中4cumylphenol为新天然产物。