特征值

The optical characteristic value Sn is used to evalute intensity distribution of light scattering according to statistical point of view. Using novel semiconductor laser, fiber collimation technique and etc, laser scattering surface roughometer has been developed.

从几何光学和物理光学的观点出发，分析了光散射法测量表面粗糙度的机理，所建立的镜面模型和衍射模型说明包括中心反射光斑和其两翼散射光光能分布和表面粗糙度之间存在着定量的关系；从概率统计出发，确立以光学散射特征值Sn来作为恒量粗糙表面散射光带光能分布的依据。

Land degree comprehensive index ; landscape pattern index ; spatial-tempo features ; Bohai sealine buffer zones

土地利用；综合指数；景观特征值；时空变化特征；海岸线缓冲带

The relationships between the eigenvalues of Jacobi iteration matrix and the block AOR iteration matrix make a very important role in our analysis. Then we prove some sufficient conditions for the semiconvergence of the block AOR method.

利用块AOR迭代矩阵和相应的块Jacobi迭代矩阵的特征值之间所存在的关系，我们证明了求解奇异p-循环线性方程组的块AOR迭代法半收敛的一些充分件。

The paper sees Horton code as a primary characteristic value and generalizing condition of the river network, and selects, simplifies and generalizes river based on scale of before and after generalization,, The main contents of paper include:(1)Reviews generalization concept, arithmetic operators, methods, influence factor and frame of map generalization and design, analyze core theory of feature —oriented map generalization, discuss the main context and applicable method of river feature generalization(2) Summarizes natural form and spatial configuration characteristic of the river network, and describe the river network using digraph Paper mostly researches tree —like river, identifies the direction of river based on the angle of the main and secondary reach, and identifies the main river based on most length and predominant continuation of the flow direction along the major channel , then receives the grade of river by recursion and structuralize river network, builds hiberarchy rank system of river based on Horton coding(3)Designs the model of river network based on Horton code, and organizes the data of node, branch and river.

本论文把Horton编码作为水系网的一个主要特征值并以此作为综合条件，并根据综合前后的比例尺对水系网进行选取、化简和概括。论文的主要工作包括：(1)总结地图综合的概念、算子分解、实现方法、主要影响因素和总体设计框架，分析面向地理特征的制图综合的核心理论支撑，在此基础上讨论水系专题要素综合的主要内容和综合适用的方法。(2)总结水系网的自然形态和空间结构特征，用图论对水系网进行描述。以树状水系作为主要研究对象，依据树状水系的主支流交汇关系确定水系流向，依据水系中主流的长度最长和主流保持原有的流向趋势确定主流，按此递归得到河流的不同级别，对基于河段组织的水系网结构化，自动建立水系的Horton编码。(3)设计基于Horton码的水系网模型，对结点、河段、河流和河系的数据进行有效的组织。

In the last part, we study the existence of the solutions for semilinear subelliptic equations and the estimates of the eigenvalues for subelliptic operators on H.

另外我们还研究了Heisenberg群上一类半线性次调和方程的解的存在性问题及Heisenberg上群一类次调和算子的特征值估计问题。

This paper discusses the existence of positive solutions for sublinear semipositone elliptic problems.

借助-ΔDirichlet边值问题的主特征值λ1相应的特征函数的性质，利用上、下解方法，讨论了一类次线性半正单调椭圆问题正解的存在性。

We directly reduced the Duursma-Lee algorithm applying the theory of divison from the defination of Tate Pairing. Then we introduced a new equavalent defination of Tate pairing of supersingular elliptic curve over finite fields with characteristic three or two, that it has lower final exponent. We proposed two refined algorithms of the modified Duursma-Lee algorithm.

应用除子理论由Tate Pairing的定义直接推导了Duursma-Lee算法；对特征值为3和2的有限域上超奇异椭圆曲线Tate Pairing给出一个等价定义，降低了最后的求幂次数；对Modified Duursma-Lee算法提出两个改进算法，分刖将效率提升了约6.7％和13.3％。

It analysises six constraints which influence the development of production and twelve subfactors velated to six constraints,and,in three hierarchical level,using Analytical Hierarchy process,it calculates these on a DJS-130 computer,obtains weights to the general goal.

首先，根据问题的性质和要达到的总目标，将问题分解成为不同的元素，按元素间的关系，建立层次结构；在每一层次中，按某一准则进行判断和比较，形成判断矩阵，通过计算矩阵的特征值，得出该元素对于准则的权重。

In these results there are some new findings:(1) when there is not initial geometry defect, multi-waves phenomena still exist and are presented in low orders in vibrative mode shape;(2) of the total vibrative mode shapes of empty tanks there is a type of vibrative mode shapes with the same waves and different directions cos (nθ+φ〓,φ〓≠0 ;(3) the total vibrative mode shape of empty tanks compose of axial symmetry and non-axial symmetry ones corresponding to upright and oblique vibrative mode shape matrices respectively.

最后对空储液罐的特征值问题进行了多达近万自由度的计算分析，得到了一些成果，其中有新的发现：（1）空储液罐的多波现象在无初始几何缺陷时依然存在，而且出现在低阶振型中；（2）在罐的总体振型中存在有同波异向振型（cos，φ〓≠0）；（3）罐类的总体振型由轴对称和非轴对称振型组成，并存在相应的正、斜振型矩阵。

ROC analysis showed that using inflection point and the second extreme point of curvature as judgment indexes, greater area under curve could be obtained, and the Youden index was 0.54-0.64, which exhibited judgment capacity.

说明LOGISTIC曲线模型的数学特征值与物理治疗效果存在明显的关联，LOGISTIC曲线模型对颈椎病物理治疗的过程特征表达充分。

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。