数学基础

At the same time, some factors such as cohesive strength, internal friction angle, slope angle of slide plane, groundwater level and earthquake intensity are analyzed. Different sensitive degrees with assurance factor are obtained. The mathematical models are simulated for them. It supplies the theoretical basis for how to confirm stability of part of slope. This will offer some guidance for the practical engineering.

同时，通过研究粘聚力、内摩擦角、滑动面倾角、地下水位及地震烈度等影响因素对边坡安全系数的敏感性程度，得到了该边坡工程的主要影响因素，并通过岩体粘聚力、内摩擦角及地震烈度与边坡稳定性系数的关系曲线分别模拟出了它们的数学模型，对确定边坡某一具体位置的稳定性程度提供了理论基础，具有一定的实际指导意义。

Based studies were done on radiation spectrum, voltage to current character and modulation property of white LEDs when they are used as optical transmitters. Then the configuration and systematic design techniques are concentrated concerning white LED lighting source communication with numerical analyses and computer simulations done as well as high speed modulation techniques, visible light receiver design and means to alleviate inter symbol interference along with background noise problem.

在对白光LED用作通信光源时的光谱特性、伏安特性、调制特性等物理特性做深入分析的基础上，重点研究了白光LED照明光源通信系统的组成结构和系统设计，进行了数学计算分析模拟，并设计出了白光LED高速调制电路和可见光接收电路，并就如何削弱码间串扰和背景光噪声对通信系统的影响进行了讨论分析。

The geometric thinking in the analysis Liman, on the basis of mathematics and physics it focuses on the two areas of the far-reaching implications.

本文在分析黎曼的几何思想的基础上，着重论述了它对数学和物理学两个领域所产生的深远影响。

This book should be readable for students in mathematics whose background includes a basic knowledge in optimization and linear functional analysis.

具备最优化和线性泛函分析基础知识的数学学生可阅读本书。

The characteristics of constant linear velocity grinding method and constant angle velocity grinding method are analyzed. This thesis analyses the problem and influence to the machining precision of the two methods.

本文的主要研究工作有以下几个方面：研究了凸轮轴磨削加工的运动数学模型，在分析工件恒线速度和工件恒角速度磨削这二种主要凸轮轴磨削加工工艺的特点的基础上，提出一种新磨削加工工艺。

Secondly, viewing from the weakness in the conventional TPS descriptions and the configuration paths of the switch modules, a uniform matrix expression is used to present the logic relations of the multiple channels' connection modes in order to make TPS design more flexible. By this way, a new TPS design method is discussed so as to revise the test plans, adjust the channel configurations online, and improve the later exploration capacity of TPS.

其次，从分析以往测试程序集TPS在测试方案描述中的局限入手，在对各种通道开关模块的电气特性及配置路径进行归纳的基础上，设计了多开关模型的数学表达方法，将各类通道开关的连接方式纳入统一的逻辑表述范畴，以便于TPS软件的灵活设计；基于此，提出了一种适合测试人员根据测试需求修改测试方案，调整通道配置的方法，提高了TPS的二次开发能力。

In order to assist Boost converter design, the working process of the converter at discontinuous current mode was analyzed and a nonlinear mathematical model was estabilished as well. Case study on Matlab/ Simulink was performed with binary logical variable used, the simulation result was consistent with the theoretical analysis which proveed the validitd and feasibility of the proposed model. The model could be used to assist Boost circuit design effectively and supplie a basis for parameter optimization.

为了辅助升压变换器在应用中的设计，分析了电流断续状态下Boost变换器的工作过程，建立了这种状态下的Boost变换器非线性数学模型，在结合二进制逻辑变量，建立了Simulink模块下的变换器仿真模型，研究表明仿真结果与理论分析结果一致，证实了模型的准确性和可行性，这种逻辑与模拟结合的简明通用的模型可以高效辅助Boost电路设计并为参数优选打下了基础。

The most typicaltheory and the most important contest is his idea that logic is the thought of logicism ofmathematics and other scientific foundation.

最典型的理论和最主要的内容就是他始创的逻辑学是数学乃至一切科学的基础的"逻辑主义"思想。

On the basis of analytical study of the malfunction factors.

本文在对汽水系统分析研究的基础上，利用仿真平台Simpanel建立了该系统设备的动态数学模型，组成了通用的模块类库。

Based on spatial kinematics of rigid body, a mathematical expression for jointed manikin and its spatial position and orientation is discussed and the translational and rotational transform of the objects in space is studied.

以刚体空间运动学为基础，讨论了作为关节链结构的人体模型及其在空间的位置和方位的数学表示方法，研究了物体在空间的平移变换和旋转变换。

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。