数学基础

A dynamics mathematical model of crank-connecting rod mechanism of engine is established based on the multibody system theory, and the computer simulation program is also designed.

基于多刚体系统动力学相关理论，建立了发动机曲柄连杆机构动力学数学模型，并利用matlab软件编制了计算机仿真程序，得到了曲柄连杆机构各运动部件的运动规律及受力，为曲柄连杆机构的优化设计奠定了基础

For about 20 years,lots of boffins have do their best in the field,the system reliability theory has made a prominently progress,and produced many theories and methods one after another.

主要以概率论、随机过程论、决策论、博弈论、组合数学和近代数理统计方法为基础，通过有限元、边界元法和随机网络分析技术为计算手段，二十多年来，经过大量科研工作者的辛勤努力，使得系统可靠性理论取得了令人瞩目的成绩，相继提出了多种理论方法。

The Mon Calamari then taught this new generation of Quarren mathematics, philosophy, science and the other foundations of civilization.

然后蒙·卡拉马利人教给新一代夸润人数学，哲学，科学和其他文明社会的基础知识。

By analysis and comparing with other kind of control system, according to the demands of the servo system for the Chamfering machines, the servo cylinder of the system was designed, the parameters of the opponents that was used for control and feedback in the system was calculated. Finally, the mathematics model of the position-feedback system was established, according to the model, the simulation frame was provided.

根据倒棱机对伺服控制系统的要求，通过分析及与其它控制系统的比较，设计了电液伺服系统的伺服油缸，确定了电液伺服系统控制及反馈元件性能参数，最后建立了位置控制闭环反馈系统的各个环节数学模型，并在此基础上绘出了伺服系统传递函数框图。

The digital simulation of thedynamic processes under step load input and supply oil pressure fluctuation were carried on by MATLAB. Analysis of the dynamic characteristics was done with the changes of the supply pressure, load, structural parameters of spherical hydrostatic bearing and the effective bulk modulus of oil. The conclusions show that structural parameters of the spherical bearing and the effect bulk modulus of oil have significant influence to dynamic characteristics, but the elasticity deformation of interior supporting collet has very small influences on the output response characteristics of the suspension system. The collets deformation can be neglected on the project.

在此基础上，建立了考虑内支撑筒的弹性变形与否时悬浮系统的数学模型，同时，建立了线性化的仿真模型，利用MATLAB对阶跃负载输入和油源压力脉动输入下的系统进行动态过程的数值仿真，结果表明球面副的结构参数，油液的有效体积弹性模数对系统的响应特性有明显的影响，而内支撑筒的弹性变形对悬浮系统的响应特性的影响很小，在工程上可以忽略其弹性变形。

Being lack of color matching system for pre-colored wool top blends, it is urgently needed to develop a computer-aided system to help colorists find a good recipe to reproduce a target color. An optimized mathematic model that can be used in computer color matching for wool top blends is set up by using the improved Stearns and Noechel.

针对缺少理想的混色模型现状和开发计算机混色配色系统的迫切需要，在对经验Stearns-Noechel模型优化和改善的基础上建立了适用于毛条混色应用需要的计算机配色预测数学模型。

This dissertation aims to develop an overall mathematical model of circulating fluidized bed combustors on up-to-date theories and experimental data of previous research work.

本论文的主要目的是在理论研究和试验结果的基础上，发展循环流化床锅炉整体数学模型，为循环流化床锅炉的设计、优化运行提供可靠参数和信息指导。

This thesis used fuzzy comprehensive evaluation method together with some other mathematic method such as AHP and DELPH to set up multi-level appraising indexes system of the SMEs operating environments in Sichuan Province.

本文首先在以模糊综合评价法为理论基础，结合专家法、层次分析法等多种定量分析方法，通过筛选确定出一套完整的指标体系，选择适当的指标合成方法和评价标准，建立综合评价数学模型。

Subsequently, the geometrical parameters of the scavenging port and exhaust port were evaluated by introducing the new mathematical models ...

所提出的关于二冲程微型摆式内燃机气口参数设计的数学模型为该种内燃机进行数值分析和优化设计提供了基础

In order to get a clear insight into the nature of this cleaning process and provide a solid basis for the industrial applications, this dissertation focuses on the fundamental investigation of the rigid ceramic candle filter, mainly including experimental study, theoretical analysis and dynamic modeling of the unsteady flowfield in the whole pulse cleaning process.

针对刚性陶瓷过滤器在其理论和工程应用中存在的问题，本论文对脉冲反吹全过程中气体引射空间和滤管内外空间的瞬态流场进行了系统的实验研究和理论分析，在此基础上进行了数值模拟并建立了脉冲反吹系统数学模型，提出了改进脉冲反吹清灰效果的阻尼式气体引射器。

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。