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It is different from traditional concept that the concept dynamic roughness includes influence of model error, truncation error, observation error and so on.

此时的糙率与传统的概念有明显的不同，它包含了模型误差，截断误差，观测误差等各方面的综合影响。

A variable-step modified Euler time integration method is proposed and analyzed. Four major factors that affect the efficiency of the variable-step modified Euler time integration method are discussed. These include stability and accuracy analysis for the damped fix-step modified Euler integration formula, adjustment method of the fix-step basic integration formula to accommodate step-size changes, suitable range of the step-size selection strategy based on truncation error concept and development of the step-size selection strategy based on apparent frequency concept to satisfied the specified error bound and stability condition.

提出了变步长修正Euler时间积分法，详细讨论了影响变步长修正Euler时间积分算法效率的四个主要因素，它们包括：有阻尼问题的修正Euler法的稳定性和精度分析，调整固定步长的基本积分公式使之容纳步长大小变化的研究，基于截断误差概念的步长大小选择策略适用范围的讨论，同时满足规定误差界和稳定性条件的、基于表观频率概念的步长大小选择策略的建立。

Through the civil society concept of the study, evolute the concept of civil society since Old Greece Time, then recognize the basic functions of civil society in the socio-economic and political life .

通过对公民社会概念的考察，分析古希腊时代以来公民社会概念的演进，全面认识公民社会的社会经济、政治功能。

As the final design process, we introduce the exhibitory thinking combine with architecture programming design, then choose the Sher Suei Ecology Industry Exhibition Center be the core museum of whole eco-museum. The design process from concept, space structure, construction and exhibitory will engaged and totally match the site configuration, eco-environment, deliver culture and productivity item. This will integral the whole communication from concept, goal, process and manner, arrive the way of deliver just the way of life.

最后就设计发展阶段，导入展示手法并结合建筑规划设计概念，选择『鱼池涩水生态产业展示中心』作为生态博物馆的核心展示馆，整体设计从概念、空间、构造及展示内容力求完全契合当地地形、生态环境、产业文化及重点发展的产业，使社区重建从概念、目标、方法及手法可以一气呵成，达到生活即生产的境界。

Hushi's atheism and humanism are deeply affected by traditional Chinese learning while his concept of the development of society ,the concept of multiply impetus and of truth are rooted in the theory of evolution and Duwei's experimentalism philosophy.

胡适的历史观有其深远的思想渊源，主要在于传统国学和近现代西学的影响。胡适的无神论思想及其关于人性方面的论述均受传统国学影响较深，而其社会发展观、多元动力观、真理观等则根植于进化论和杜威实验主义哲学的土壤之中。

The current study aims at distinctions of facework employment between Chinese and western culture, and leaning towards mixing. The discussion mainly focus on the followings: the analysis of characteristics of traditional"li"culture; Chinese concept of"face"in"li"culture; individualism in American culture; individualism in Chinese communication;the acceptance of"li"in American concept of face. What is really new in this study is to find out new tendency of mixing of"face"concepts in Chinese-Western communication.

在不同的文化背景下，其应用方式和应用原则大相径庭，本文旨在论述和研究中国和美国两种不同的文化背景下，面子问题在交际过程中应用的区别，对交际效果产生的影响以及相互融合的趋势，主要从以下几方面进行论述：阐述中国传统"礼"文化的特点；"礼"文化影响下中国人的面子观；美国文化中的个人主义特点；个人主义价值观中面子概念的特点；中国人交往中个人主义的突显。

The concept of application framework could be explored as a fertile evolution of the concept of design pattern.

研究框架的概念的应用是在设计模式的观点上的很好的发展。

We believed that since the valid concept is may change,then the fidelity concept is also may change.

我们认为：既然有效性概念是可以变化的，那么保真性概念也是可以变化的。

In this thesis, combinations of the IRT, BLOOM education classification system theory and the concept of fitness in accordance with the concept of the theory are used to develop a teaching intelligent test system. Flash animation will be used to enhance student's learning. We also use the automatic mechanisms to create questions, and generate the subject questions so that the development time will be saved.

而本论文结合了试题反应理论、BLOOM教育分类系统、适性理论的概念与依循理论的概念，开发出智慧型教学测验系统，并结合了Flash动画增进学生学习效果；在题库的设计上，则是采用自动造题机制，来产生测验的题目，如此一来，可以节省题目的开发时间。

Human oriented concept on value,scale,quality,structure and of interest is the comprehcnsive re flection of this developing concept.It's a need of economic development and a we ll-off soeiety to ste up the thought of innovation and development,to improve ed ucation through talents,to...

以人为本的价值观、规模观、质量观、结构观和效益观是现代远程教育科学发展观的综合体现；树立创新发展的思路，走人才强教，内涵发展为主、适度拓展外延和特色创新之路，建立开放多元的宏观管理机制，是现代远程教育顺应知识经济发展和全面建设小康社会需要，实现创新发展的保障。

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。