应用数学

According to the modified k－ε turbulent model a new numerical model is proposed to simulate three dimensional in-cylinder flow field of diesel engines, and applied to a large microcomputerize procedure which we developed for simulating gas flow, spary and combustion in diesel engines.

以此为基础建立了模拟柴油机缸内三维流场的一个新的数学模型，并将其应用于我们开发的计算模拟内燃机流动、喷雾和燃烧的微机化大型程序SUN—I之中。

Besides, the effects of light and temperature on stomata have not been modelled in any mechanistic model.

在第一章中，通过综述气孔对环境因子响应的数学模型的文献，发现目前对描述和模拟气孔行为的经验模型和机理模型是脱节的，可供选择的气孔模型还不能满足理论分析和实际应用的需要；经验模型没有机理的支持，不能用于理论分析，没有普适性；机理模型都过于复杂，而且其中的一些参数难以确定，所以它们还只能作定性模拟，不能作定量预测，另外，对于光强和温度的影响还未见有人模拟。

This paper introduces the mathematical basis of multi-trace coherency techniqu e. Real data test shows that the 3-D coherency technique can determine the faul t plane extent and its detailed features quickly and accurately, and the stratal occurrency information provided by t...

本文介绍了多道相关技术的数学原理，实际应用证明，三维相干技术不仅可以快速、准确地确定断层的平面展布及其细节特征，而且可以利用其提供的地层产状信息研究目标储层的构造沉积演化体系。

Definition, formulary, theorematic go against definition, formulary, theorem is being applied directly in be being used in maths to solve a problem is a kind of commonner method, but its are converse application often is ignored.

定义、公式、定理的逆用在数学解题中直接运用定义、公式、定理是一种比较常见的方法，但其逆向应用往往被忽视。

They have also suggested that the very concept of abstract numbers— the idea of a oneness, a twoness, a threeness that applies to any class or objects and is a prerequisite for doing anything more mathematically demanding than setting a table— is itself far from innate.

这也同样表明：应用于任何类和物体的抽象数字，如，一维性、重性、重性是做比摆桌子这类更具数学要求的事情的先决条件——这并不是天生就决定了的。

Topologic space theory is used to analyze the customers' requirement in information management mode so as to classify rationally the customers in accordance to their values.

把数学理论中的拓扑空间论应用于信息管理的用户需求分析，对信息需求用户的价值进行合理分类。

Lu YH. Application of fuzzy mathematics in differential diagnosis of tracheobronchitis caused by fungus.

卢运河。模糊数学在霉菌性气管支气管炎的鉴别诊断中的应用。

The founded models were applied to the calculation of the molten salt actinide recycler and transmuter system, in which the neutronics, thermal hydraulics and safety characteristics were obtained, and the influences of the inlet temperature, inlet velocity and the resistant time of the fuel salt in the external loop were analyzed.

将建立的数学模型应用于锕系元素再循环嬗变熔盐堆的计算，对其堆芯物理特性、热工水力特性和安全特性进行了系统分析，考察了入口温度、速度及燃料盐在堆芯外运行时间的影响。

This paper discusses some application cases of the error propagation law by the examples of trigonometrical survey, and presents that not only sum function and numeral multipling function in which there is only one independent observed value but also more complex functions which are equal in mathematics are not opposite in the process of error propagation according to the error propagation law.

1引言本文以三角测量为例，对误差传播定律一些应用问题进行了讨论，指出当只有一个独立的观测值时，和函数与倍数函数运用误差传播定律不会出现悖论；如果在测量工作中有多余的直接观测值，就需用平差后的间接观测值按协方差传播律来计算，这样数学中相等的函数关系才能得到同样的函

The paper introduces an unadaptive digital watermarking algorithm based on DWT that is realized it on matlab. Both the validity and the attack resistance of the algorithm are tested in the paper.

介绍一种基于离散小波变换的非自适应数字水印算法，并应用MATLAB数学软件实现算法，考察算法的有效性和抗攻击能力。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。