数学基础

A mathematical cascade model of 35 kV power transmission line with concentrated parameter is developed and a multiple modules coupling model of this power transmission system fit for digital real-time simulation is further presented on the basis of known model of synchronous machine and composite load.

建立了35kV输电线正常运行状态级联集中参数数字仿真的数学模型，并在已知同步发电机、变压器和综合负载模型的基础上，进一步提出了适合于35kV馈电系统数字实时仿真的多模块耦合模型，同时给出了相应的数字积分方法。

On the base of these, and the ideas of mathematical curriculum reform and the course of the reform of solid geometry, combining with educational reality and students" psychology, put forward some thoughts about solid geometry of middle school in future:(1) The arrangement of curriculum content should. give consideration to both the logical sequence of knowledge and the development of students" psychology, and make them united;(2) Paying great attention to the analogy of plane geometry and solid geometry;(3) Some respects remained to be strengthened about solid geometry in senior middle school;(4) Emphasizing the importance of conversion in solid geometry;(5) Stressing on the combination of solid geometry and algebra and other subjects;(6) The design of the content of solid geometry should have certain elasticity, and make solid geometry and modern education technology well combined.

在此基础上，又植根于近年来我国数学课程改革的理念和立体几何课程改革的进展，并结合我国的教育实际与学生心理，对未来中学立体几何课程的设胃提出若干思考：(1)课程内容的编排，要兼顾知识的逻辑顺序和学尘的心理发展相统一；(2)重视平面几何和立体几何的类比；(3)高中阶段立体几何有待加强的几个方面；(4)强调变换在立体几何中的重要性；(5)注意将立体几何和代数及其他学科相结合；(6)立体几何内容的设计要有一定的弹性，并注意与现代教育技术相结合。

The basic equations of centrifugal pump on steady and unsteady process were educed based on theory of momentum and moment in order to analyze the transient hydrodynamic performance of centrifugal pump.

为了对离心泵快速开启过程的瞬态效应进行分析，根据动量矩定理分别推导转速稳定和不稳定时的离心式水泵基本方程式，给出了叶轮旋转加速和流体加速对性能影响的数学描述方程，为进一步理论分析和数值计算打下基础，并结合一台快速启动的混流泵进行实例分析。

The basic equations of centrifugal pump on steady and unsteady process were educed based on theory of momentum and moment in order to analyze the transient hydrodynamic performance of centrifugal pump. The equations were used to describe the influence of accelerating rotation of impeller and accelerating motion of fluid on hydrodynamic performance.

为了对离心泵快速开启过程的瞬态效应进行分析，根据动量矩定理分别推导转速稳定和不稳定时的离心式水泵基本方程式，给出了叶轮旋转加速和流体加速对性能影响的数学描述方程，为进一步理论分析和数值计算打下基础，并结合一台快速启动的混流泵进行实例分析。

Based on this mathematic model, the computer simulation model of 3-DOF motions of mooring systems was built up.

在此数学模型的基础上，建立了系泊系统的多自由度的计算机仿真模型。

On the basis of these results, the estuarine mixing type and characteristics, and the formation and development of maximum turbidity zone, and the morphodynamics of intertidal mudflat evolution, and the effects on hydrodynamic and sediment environment caused by estuarine regulation are analyzed in detail. Finally, it is pointed out that the multi-disciplinary study, the numerical simulation and prediction by use of mathematical models, and the quantization of the hydrodynamic and sedimentary processes are the focal issues in future.

在系统总结近年主要相关研究成果的基础上，着重讨论了强潮河口的混合类型与特征、最大浑浊带的形成发育与主因、潮滩地貌的动力影响因素与演变过程、河口综合治理的特点与人类活动引起的水沙变异等问题，并指出多学科交叉、数学物理模拟与预报、水沙动力机理与过程的量化等方面是未来研究重点与方向。

Based on the study of using the evolutionary computing to solve the Multiple Depot Capacitated Arc Routing Problem, its mathematic model was improved, so as to satisfy the demand of the sprinkler routing problem in real world.

在利用进化计算对多车场带有容量限制的弧路径规划问题(multiple depot capacitated arcrouting problem， MDCARP)进行研究的基础上，对其数学模型进行改进，以适应现实生活中洒水车路径优化问题的需要。

This thesis was Carried out basing on the Seals Automatically Reorganization project in a Information Science Company of ChongQing municipalization.

摘要本文的研究工作是结合市内某信息科技公司的"印鉴自动识别系统"研发项目开展的，作者在深入分析了人工神经网络的各种数学模型及算法的基础上，重点剖析了前馈神经网络的算法思想，对其进行了实用、有效的改进，并将它成功的应用于"图象识别技术"，取得了较为满意的成果。

This thesis was Carried out basing on the Seals Automatically Reorganization project in a Information Science Company of ChongQing municipalization. In the paper, based on the analyzing of the mathematical models and their algorithms of kinds of Artificial Neural Networks, the author analyzed the algorithm of the Back-Propagation networks model, at the same time, the author improved the algorithm practically and effectively, and applied it in the recognition technique of digital image successfully.

本文的研究工作是结合市内某信息科技公司的"印鉴自动识别系统"研发项目开展的，作者在深入分析了人工神经网络的各种数学模型及算法的基础上，重点剖析了前馈神经网络的算法思想，对其进行了实用、有效的改进，并将它成功的应用于"图象识别技术"，取得了较为满意的成果。

This tiny little paragraph is the basis of the entire Murrey Math Trading Course, which readers of Traders World should be very familiar with since, T.H.

这个极小的小段落是进行贸易课程的整个 Murrey 数学的基础，商人世界的读者应该感到非常熟悉因为，T.H。

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。