数学

So the respiratory physiology a hydrodynamics is the base of studying how gas convect and diffuse in the hi In this paper, we introduce the physiological structure and the process of | convection and diffusion in the lung. After analyzing some kinds mathematical model, we have got a digital model through simplifying l Weible model.

本文介绍了肺体的生理结构以及气体在肺内的传输和扩散过程，通过对现有几种数学模型的分析后，在Weible肺解剖模型的基础上简化得到肺的一维喇叭口数学模型，把气体在三维空间传输和扩散问题转化为一维问题。

Aesthetics that seeks regularities and features from various changing beautiful things is the concept that conies from mathematical design because people think various forms of beautiful things have their common regularities and features in cosmical design, i.e.

从千姿百态，千变万化的美的事物中寻找共同的规律和特征—美学，这一想法本身就源于数学设计的信念，因为人们认为形式各异的美的事物有共同的规律、特征，乃因为宇宙设计—数学设计使然。

The models were simulated by Visual Basic program, and provided for separation of enantiomers by countercurrently fractional extraction with hollow fiber membrane.

运用Visual Basic程序，对数学模型进行模拟；同时通过对数学模型模拟，对中空纤维膜O／W逆流分级手性萃取的操作参数进行优化。

LIU Hui's Cyclotomic Method is one of the greatest achievements of the history of mathematics in China, even in the world, in which the special approach to understand the infinity and the method to solve it are presented.

刘徽的&割圆术&是中国数学史上的重要成就之一，其中包含着中国数学家对无限问题的独特认识和致用的处理方式。很多高等数学教科书在讲述极限概念时大都提及，但所述，并未体现刘徽本意。

The discrete mathematical models of the roundness and cylindricity EST are established; the mathematical models of the generating line straightness, axis straightness, coaxality, circular run—out and total run—out error of the revolution workpiece are put forward and established first based on the EST; the method about how to sample and to process sampling data are given when these models are applied to measure workpleces.

其主要内容是：针对长期以来国内对回转误差运动的有关定义的争论，对回转误差运动的本质进行了讨论，进一步明确了静心与静轴，动心与动轴的概念，并对此进行了数学推导，给出了相应的数学模型；统一了&平动说&和&瞬心说&关于回转轴线的定义，指出了两种学说各自的力学基础和它们的一致性。

This paper, basing on the software system, analyzes the quenching process at point of diathermanous subject view; introduces the instrument of measurement and the experiment principle; concretely analyses the mathematic models and processing method of the data-processing system, which is the theoretic groundwork for programming; describes the makeup of the software and how to design and actualize it.

论文部分基于作者所开发的淬火介质冷却性能测试软件系统，从传热学的角度分析了淬火冷却过程；介绍了淬火冷却性能测试设备及原理；重点分析了数据处理系统部分数学模型的建立及相应的数学处理方法，这部分是系统编程的理论基础；并概述了系统的构成，软件的设计及实现。

Hence,the paper combined the PCNN and mathematical morphology to carry out the edge detection for images containing noises,since the PCNN is advantageous in image segmentation and the mathematic morphology has the dilative and erosive effects on images.

考虑到PCNN在图像分割中的天然优势和数学形态学对图像的膨胀腐蚀作用，采用PCNN和数学形态学相结合的方法对含有噪声图像进行边缘检测。

So there are still many people who have great interested in diophantine equations.

它的研究成果不仅对数学各个分支的发展起着重要的作用，而且对其它非数学学科的研究有重大的应用价值。

And, this kind of designing strive to grasp the course and grade characteristics, and put the teacher on the front to be the designer and implementer of teaching design. The supreme aim is to build a useful teaching design system which has lively practicalness and disciplinarily can fit different situation and grade.

数学教学诊断式设计体系本着为现实教学实践服务的旨趣，极力彰显诊断在教学设计全程中的特殊价值与意义、努力把握中学数学教学实践的学科特性与学段特性、着力回归一线教师既是教学实施者更是教学设计者的本然身份，最终形成一种在专业设计理论指导下的，具有鲜明的实践性、情境性、学科性与学段性的运用型教学设计体系。

According to Fermat's theory and variational calculation, the mathematical model of sound path in dissymmetrical temperature field is established. Furthermore, the sound path equation is solved.

根据Fermat原理和数学变分方法，建立了非均匀温度场中的声传播路径的数学模型，并求出声线方程。

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。