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The hysteretic models consisted of a skeleton curves which based on the concept of three stage polygonal line with soften region and some hysteretic rules.

恢复力模型的骨架曲线均为带软化阶段的三线性折线模型，卸载—再加载曲线分别采用三折线模型和双折线模型。

To overcome this limitation, the paper proposes the degree of grey periodic incidence judged by slope, according to the winding situations of two curves, and judging wave period of the curve by calculating the slope of every polygonal line.

针对这一缺陷，作者根据两条曲线的曲折情况，通过计算各折线的斜率判断曲线的波动周期，提出基于斜率判断的灰色周期关联度。

With the analysis of the principal curves,the extended polygonal line algorithm and the specialties of fingerprint,the original extended polygonal line algorithm is improved a lot,and becomes much more suitable for the extraction of the skeletonization of fingerprint.

在分析主曲线、推广多边形算法和指纹数据的特点后，尝试使用主曲线来描述指纹特征，对原推广多边形算法作了较大改进，使其更适用于指纹骨架的提取，最后实现了基于骨架的指纹特征提取。

The study establishes the compression of models and algorithms for vector graphics data on different basis, including on the basis of vector graphic factors of B spline curves in predecessors research; on the basis of rectangle graphic factors in main axis mode; on the basis of the application of Hough transform to polygonal line, ellipse and circle, so the study improves the models and algorithms of compression for vector graphic data.The compression for vector graphic data mainly studies the data of storing graphic factors.

本文研究的内容是：根据对以往各种曲线矢量数据压缩模型与算法的研究，建立了基于B样条的曲线矢量图形要素的数据压缩模型和算法；在前人研究的基础上，建立基于主轴模式的矩形图形要素的数据压缩模型和算法；本文作者将Hough变换应用到折线、圆及椭圆图形要素的矢量数据压缩上，在此基础上改进了基于Hough变换的折线、圆及椭圆图形要素的数据压缩模型和算法。

Two hysteretic models suitable for damaged and undamaged fiber-reinforced prestressed wide-beam frames were proposed sequentially. The hysteretic models consisted of a skeleton curves which based on the concept of three stage polygonal line with soften region and some hysteretic rules.

在上述研究的基础上，分析了无损伤和地震损伤的钢纤维预应力扁梁框架滞回曲线的主要特征，进而分别提出了适合于无损伤和地震损伤的钢纤维无粘结预应力扁梁框架结构的恢复力模型。

In order to store and dispose of these kinds of curves, we present the concepts of convex rate and polyline to describe line segments and arcs by the same format.

为了便于计算机存储和处理，给出了直线和圆弧的统一表示形式，并在此基础上给出了多义线的定义与存储结构。

In the third chapter, interval polynomial approximation of rational curves is introduced.

第三章主要介绍了有理曲线的区间多项式逼近。

However, due to the complex of computation and the need of the design, sometime we need to use polynomial approximation for a rational curves and surfaces.

然而由于计算的复杂性和设计的需要，有时我们还需要用多项式函数来逼近有理曲线和曲面。

Two new approaches are proposed for a polynomial approximation of Bezier offset curves.

提出了Bezier曲线等距线的两种多项式逼近新思路。

Because only two points a straight decisions, and in between the two curves can be used an infinite number of cubic polynomial approximation.

因为，两点只能决定一条直线，而在两点间的曲线可用无限多的三次多项式近似。

Vishnu entered a dark fourth dimensional dream that did not support his field or continued life.

毗瑟挐进入了一个第四密度的黑暗梦想，那里并不支持他的能量场或继续生命。

Leaders and decision-making persons use it to collect the data, including the information of unit work, handing in fee, oweing fee, prepaying fee,changing and afterpaying and account transfering of joining-insurance employee, and account paying of all kinds of insurances from hospitalization insurance institutions.The collected data is picked up, organized, switched and showed to user.

该子系统主要面向各级领导、决策分析人员；从各个医疗保险经办机构和定点医疗机构采集数据，包括在各个医疗保险经办机构处理的单位办公信息，单位缴费、欠费、预缴费信息，参保职工变更信息，参保职工增减变动信息，参保职工补缴信息，参保职工帐户划拨信息：包括各定点医疗机构处理的各险种帐户支出信息，各险种的统筹金支付信息等；将采集的数据提取，组织和转换，然后展示给用户。