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Based on the analysis for the dynamic characteristics of semi-rigid steel frames with simple or multiple degree-of-freedoms,effects of rotation stiffness of beam-to-column connections on the structure period,frequency,critical damping and mode of vibration are discussed.

通过对单自由度体系和多自由度体系半刚接钢框架的动力特征分析，初步探讨了梁柱连接转动刚度对结构自振周期、频率、临界阻尼以及振型等参数的影响。

These two modes of operation of the Convention on behalf of all the typical characteristics of the economy, because China's exhibition economy is just beginning, the mode of operation are curial to the Exhibition on China's economic healthily.

这两种运作模式都代表了会展经济的典型特点，我国会展经济由于是刚刚起步，采用什么样的运作模式对我国会展经济的健康持久发展至关重要。

First, two preprocess algorithms are designed to decompose a communication request set into some continuous cyclic sequences. Then the permutation group is used to represent the ring network with fixed converters and an algorithm is proposed to classify the wavelength channels into some groups.Based on these on these ideas,a wavelength assignment algorithm is presented.For an optical ring with any fixed conversion mode,the algorithm can giv a good assignment scheme.

首先，提出了两个对环网上的请求集合预处理的算法，这两个算法可以将请求集合分解成一些连续的循环序列；然后，采用置换群来描述具有固定波长转换器的光环网，基于这种数学表示，提出了对环网上的波长信道进行分解的算法；基于这些算法，进一步提出了一个波长分配算法，该算法对于环形光网上的任意固定转换模式都能给出一个较好的波长分配方案。

Simulation results show that:1 The FWHM of the spectrum has an effect on the performance of a depolarizer. 2 The spectrum width of every longitudinal mode has no effect on the performance.

仿真计算表明：1消偏器的性能与光谱的半峰全宽有关；2每个纵模谱宽的变化不影响消偏性能。

Of more and more shorter lifecycle, we focus on how to weaken the disaffect of great demand uncertainty on the supply chain through the advanced operation modes including manufacturing and cooperation mode.

本文主要针对产品生命周期不断缩短，及越来越多的产品从功能性消费转为时尚型消费的发展趋势，考查如何通过新的供应链组织模式来降低不确定性对这类产品的经营所带来的影响。

Thus, drawing on the screen before, must be based on the type of display adapter will be set up as some kind of display graphics mode.

因此，在屏幕作图之前，必须根据显示器适配器的种类将显示器设置成为某种图形模式。

We propose a theoretical framework to predict the impact of inward FDI on the host country's incumbent firms' price-cost margins, according to the mode of entry of FDI We then investigate empirically the competitive discipline effect exerted by both imports and FDI on manufacturing plant-level price-cost margins in the UK, for the period 1991-2001. We estimate different specifications of the price-cost margin equation with both fixed-effects instrumental panel estimator and efficient generalized method of moments estimator with clustering correction.

通过构建理论模型预测FDI的不同进入模式对东道国企业价格－成本盈余(Price-Cost Mar-gin， PCM)的影响，以及采用固定效应工具面板和经过聚类修正的有效广义矩等不同估计模型，对1991-2001年间的进口和FDI对英国制造业企业PCM竞争规制效应进行的实证研究表明：绿地FDI对利润有负向影响，而并购FDI对利润的影响为正，即绿地FDI对PCM有规制效应，并购FDI会增加PCM。

Drift electron mobility, the Hall factor and Hall mobility in GaN are calculated according to Mattiessen's rule as a function of temperature for carrier concentrations with the compensation ration as a parameter on the basis of taking into account the individual average scattering momentum relaxation time of four scattering mechanisms, namely, ionized impurity scattering, polar mode optical scattering, acoustic piezoelectric scattering and acoustic phonon deformation potential scattering which have an effect on electron mobility of GaN.

考虑了对纤锌矿型氮化镓低场电子输运影响最为显著的4种散射机制－电离杂质散射，极化光学波散射，声学波压电散射和声学声子形变势散射的单个平均动量驰豫时间，采用Mattiessen's rule计算了不同补偿率以及不同载流子浓度条件下，氮化镓电子漂移迁移率，霍耳因子以及霍耳迁移率随温度的变化。

Based on the application of elementary function, this article discusses the key points on setting up the mode in mathematics teaching and learning, several problems that should be paid to more attention, and how to use it in mathematics classroom teaching.

摘要通过对初等函数的应用进行了数学建模教学尝试，并对数学建模教学的关键以及数学建模教学应注意的几个问题等方面阐述了如何进行数学建模的课堂教学。

With the ethnographical approach focusing on the changing mode of production, I aim to understand the rippling effects of crayfish farming on people's changing life styles, changes in values, and formation of policies and meanings.

我会从民族志学角度对生产模式转变作重点研究，以理解淡水小龙虾养殖所带来的涟漪效应对人们的生活方式和价值观的变化，以及对政策的制定和意义。

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。