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Then the ductility demand spectrum, which comprises a group of ductility coefficients or yield strength coefficient versus natural period curves for different yield strength coefficient or ductility coefficients are obtained.

在分析总结几种常见的非线性静力分析侧向力分布形式的基础上，提出两个基于多自由度体系振型的侧向力分布计算方法：30％方法和部分SRSS方法。

This method uses K-L transform to produce matrix of sample aggregate, get a low dimension sub space to describe the wrist bone's radiographs. Each image makes projection, and obtains one group of coordinate coefficients. The coefficients indicating the position of this image in sub space can be discerned the image feature.

该方法通过对由中指骨组成的训练样本集的产生矩阵做K-L变换，用一个低维子空间来描述中指骨X光图像，每幅图像向其作投影，并获得一组坐标系数，这组系数表明了该图像在降维子空间中的位置，能较好地表征该幅图像的特征信息。

This method uses K-L transform to produce matrix of sample aggregate, get a low dimension sub space to describe the wrist bones radiographs. Each image makes projection, and obtains one group of coordinate coefficients. The coefficients indicating the positionof this image in sub space can be discerned the image feature.

该方法通过对由中指骨组成的训练样本集的产生矩阵做K-L变换，用一个低维子空间来描述中指骨X光图像，每幅图像向其作投影，并获得一组坐标系数，这组系数表明了该图像在降维子空间中的位置，能较好地表征该幅图像的特征信息。

The technique of laser light scattering has been widely used in the investigations of biomacromolecule solutions, which can provide some more important parameters such as molar mass, root-mean-square radius of gyration, the second virial coefficients, diffusion coefficients and hydrodynamic radius. Therefore, it is very sutiable for the study of state behavior of biomacromolecule solutions.

激光散射技术在生物大分子溶液性质研究方面的应用越来越广泛，它可以提供大分子的重均分子量、均方旋转半径、第二维里系数、平动扩散系数及平均流体力学半径等重要参数，这对于研究生物大分子的溶液状态行为特别适用。

When the cost coefficients are fuzzy, the total assignment cost will be fuzzy as well. The Yager's ranking method is utilized to transform the fuzzy cost coefficients into crisp value, then the firm's optimal policy can be determined via the classical Hungarian method.

当指派人员执行各项工作的成本系数为模糊数值时，厂商的总指派成本亦为模糊数值，本研究的构想乃在於利用Yager 的模糊数值排序法，先将成本系数的模糊数值转换为明确数值，之后再利用传统的匈牙利法进行求解。

In this paper, a high order accuracy difference method is presented for solving unsteady convection diffusion equation by using Implicit Perturbation Finite Difference scheme. Firstly, we use the steady convection diffusion equation, the constant coefficients of this equation are expanded to power series of grid-spacings, then the high-order Perturbation Finite Difference scheme is obtained by determining the coefficients of the power series. Put this scheme on unsteady convection diffusion equations and modified it, the IPFD scheme is constructed.

本文利用摄动差分思想，对定常对流扩散方程中的空间微商系数进行摄动展开，展开幂级数系数通过消去摄动格式修正微分方程的截断误差项求出，由此获得方程的隐式摄动差分格式，将此方法应用于非定常对流扩散方程，并加以修正，得到该方程的修正隐式摄动差分格式。

Using this method,we discussed for generalized Burger equation with variable coefficients and linear danping,obtained its symmetry group,simliar reduced equations,infinitesimal generator and Lie algebras;In chapter 6,using the Exp-function method,the generalized solutions of combined KdV-mKdV equation with variable coefficients are discussed.

首先介绍了Lie群分析法的基本思想，其次用Lie群分析法得到了带线性阻尼项的变系数广义Burgers方程的无穷小变换、无穷小算子的李代数结构，并具体求出了带线性阻尼项的变系数广义Burger方程的群不变解和约化方程。

With some examples, the correlat ions between the thermal expansion coefficients of minerals and the types of cr ystal structures, the nature of chemical bonds, the valencies of ions , the interionic distances, the percentage ionic characters, the electronic conf igurations of ions and the chemical compositions are discussed and summarised . The crystal chemistry approach has been used in the calculation of the th ermal expansion coefficients for minerals with simple structures and composition s.

晶体化学方法是研究矿物热膨胀系数的有效方法，但由于矿物的热膨胀系数和晶体化学参数之间的定量关系尚未完全弄清，目前仅仅能对简单结构矿物的热膨胀系数进行计算，结构、成分较复杂的矿物的热膨胀系数计算尚缺乏好的晶体化学模型。

The average correlative coefficients of linear regression function for isochronous stress- axial strain curve are 3.92% higher than that of average correlative coefficients of linear regression function for isochronous stress- radial strain curve, so nonlinear creep property of the fine sandstone specimen in axial direction is correspondingly weaker than that in radial direction.

应力－轴向应变等时曲线线性回归函数的平均相关系数高出应力－径向应变等时曲线线性回归函数的平均相关系数3.92%，因此其轴向非线性蠕变特性相对于径向非线性蠕变特性更弱。

By analyzing forces on a single tyre and adhesive performance on whole forklift,a relation of adhesive coefficients to sliding direction is set up,rub coefficients and adhesive limit are analyzed,a relation of multi-directional electrical forklift static stability to its adhesive performance is set up,a method judging un-stability of a multi-directional electrical forkl.

为了研究万向电动叉车的静态稳定性，通过对单只轮胎受力、整车附着性能进行分析，建立了附着系数与滑动方向间的关系，提出了用静态区域图判断万向电动叉车失稳的方法，得到了整车下滑坡度角随方向角变化的关系曲线。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐