导出

Ringel realized positive parts of semisimple Lie algebras in the framework of Ringel-Hall algebras. The main result of this thesis is to build a geometric and topological model over triangulated categories such as derived categories and stable module categories of repetitive algebras. We defines a Lie bracket by Euler characteristics of constructible subsets and thus realizes infinite dimensional Lie algebras of various types with non-degenerated bilinear form.

本文的主要结果是在导出范畴和重复代数的稳定模范畴等三角范畴水平上建立相应的几何-拓扑模型，并利用相应可构集的欧拉示性数定义了一个Hall代数的交换子乘法，从而在三角范畴水平上实现了一大类无限维李代数的整体构造，并且这类李代数本质上都具有非退化的不变双线性型。

The quadrature formula about surface integral on any quadrilateral element is deduced by means of isoparametric transformation and bilinear interpolation.

通过对三维有界区域的边界曲面作四边形网格剖分，用有限元方法处理高斯公式中的曲面积分，由等参变换及双线性插值导出任意四边形单元上曲面积分的数值求积公式。

The 2-D bilinear transformation digital circuit from 1-D analog domain to 2-D discrete domain has been presented, which can ensure the exact realization of 1-D to 2-D bilinear transformation.

将此二维双线性变换数字电路用于2-D跳耦型数字滤波器的电路中，即可获得一种新的，稳定的二维数字滤波器实现。同二维波数字滤波器一样，2-D跳耦型数字滤波器亦以1-D无源LC双端接载梯型滤波器为导出原型。

Extending the model to binary compound, an equation of state for double-component phospholipid monolayers was derived.

将上述状态方程推广到二元混合物，导出了双组分磷脂单分子膜的状态方程模型。

Concept lattice, induced from a binary relation between objects and features, is a very useful formal tool and has been used in many fields.

而由二元关系导出的概念格则是一种非常有用的形式化工具，它体现了概念内涵和外延的统一，反映了对象和特征间的联系以及概念间的泛化与例化关系，因此非常适于发现数据中潜在的概念。

The primitive notion in rough set theory is a pair of upper and lower approximation operators induced by the basic structure, an approximation space, consisting of a universe of discourse and a binary relation on it.

粗糙集理论的核心算子是从近似空间导出的一对非数值型算子-上近似算子与下近似算子，这一对近似算子是整个粗糙集理论与应用的基础。

It is proved that the upper approximation of such fuzzy rough set in a fuzzy approximation space is just its image derived according to generalized extension principle and binary fuzzy similar relation.

通过对偶方式定义了模糊集的上、下近似算子，给出了模糊粗糙集在相应的模糊关系及模糊集的截集下的表示定理，证明了这种模糊粗糙集关于模糊近似空间的上近似恰为其在二元模糊相似关系下导出的广义扩张原理之下的像。

To see the format of the export file, try exporting a small bindery.

要查看的格式导出文件，请尝试出口小装订。

Starting from basic principle of electric field and theory of biodynamics, the author built a simulation model based on PSPICE platform; and conducted some initial studies on the formation of EIR waveform and on the source of its component parts by way of computerized simulated experiment in combination with laboratory facilitics of clinical human body...

文中从基本电场原理和生物动力学理论角度出发，建立一种基于 PSPICE平台的仿真模型。通过计算机的模拟实验，结合临床人体检测的实验手段，对肺血阻抗图的波形形成和成分来源作了一些研究。初步导出电极极板的面积和位置，其与检测所得的肺血阻抗图的相互关系。

They deepen and broaden the research of bioethics, but will never lead to an incontestable ultimate conclusion.

这些论争深化和拓展了生命伦理学研究，但不可能导出一个确定不移的终极性结论。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。