2—（2‘对—苯基苯磺酰胺基苯基）—4H—3，1—苯并恶嗪—4—酮的合成在电致发光中的应用

以联苯和邻氨基苯甲酸为原料经过氯磺化和缩合反应合成了2－（2'-对苯基苯磺酰胺基苯基）－4H－3,1－苯并恶嗪－4－酮,通过红外,质谱,核磁共振和元素分析等表征了它的结构,以它为发光层材料制备了双层结构的电致发光器件,测定了电致发光器件的电流－电压曲线和电致发光光谱,最大亮度可达450cd/m^2,因空穴传输剂TPD处理方法的不同,分别发出黄绿色和橙色两种不同滤长的光,这主要是与2－（2'-对苯基苯磺酰基苯基）－4H－3,1－苯并恶嗪－4－酮具有多种跃迁能级有关。     

Strong Universal Pointwise Consistency of Recursive Regression Estimates

For semi-recursive and recursive kernel estimates of a regression of Y on X (d-dimensional random vector X, integrable real random variable Y), introduced by Devroye and Wagner and by Révész, respectively, strong universal pointwise consistency is shown, i.e. strong consistency P _X -almost everywhere for general distribution of (X, Y). Similar results are shown for the corresponding partitioning estimates.     

基于数据挖掘建立高校系科办学评估体系的合理性评价系统

本文运用关联规则发现方法与人事信息库进行数据挖掘,寻找高校系科办学评估体系中各因素间的关联关系,并根据关联关系强弱分析各因素的权重设置的合理性。本文分析和指出了现有一些看法的优缺点,提出了在Tid-optim算法,并对发现的规则进行分析,通过数据抽样建立合理性评价体系,有效地解决了权重设置的不合理问题,为高校管理决策提供科学依据。     

Kolmogorov's strong law of large numbers for fuzzy random variables

In this paper, Kolmogorov's strong law of large numbers for sums of independent and level-wise identically distributed fuzzy random variables is obtained.     

Analysis of a rubber cone tensioned by a concentrated force

Using the constitutive equation of a rubber-like materials given by Gao (1997), this paper investigates the problem of a cone under tension of a concentrated force at its apex. Under consideration is the axial-symmetry case and the large strain is taken into account. The stress strain fields near the apex are obtained by both asymptotic analysis and finite element calculation. The two results are consistent well. When the cone angle is 180°, the solution becomes that of non-linear Boussinesq's problem for tension case.     

Large strain field near a crack tip in a rubber sheet

The distribution of stress-strain near a crack tip in a rubber sheet is investigated by employing the constitutive relation given by Gao (1997). It is shown that the crack tip field is composed of two shrinking sectors and one expanding sector. The stress state near the crack tip is in uniaxial tension. The analytical solutions are obtained for both expanding and shrinking sectors.     

匀速转动内悬臂梁稳定性研究

本文采用了凯恩简化模型并提出大范围平动和转动共同作用下的连续体梁模型;通过两种模型分析了匀速转动内悬臂梁的稳定性;指出了匀速转动内悬臂梁存在动力柔化现象,动力柔化的原因在于梁的大范围平动;提出了匀速转动内悬臂梁的内转半径和外转半径的概念,指出匀速转动内臂梁的内转半径和外转半径比值存在一定关系时,系统为一阶稳定,研究表明,同时作大范围平动和转动的柔性梁存在柔化和刚化的分界点,需要在实际应用中予以注意。     

波导管与谐振腔的边界条件

阐述齐次边界条件Et＝0和Hn＝0在求解波导管和谐振腔中电磁波的重要作用;说明附加边界条件ЭEn/Эn=0和ЭH1/Эn＝0在何种情况下有用。     

用于固体自锁模的三元腔激光器的二阶、三阶色散的解析表示

给出在任意角度切割情况下,三元腔固体自锁模激光器二阶、三阶色散的解析表示,并系统地计算了切割角度、材料等因素的变化对二阶、三阶色散的影响.该计算为三元腔固体自锁模激光器的设计提供了理论依据. 关键词： 三元腔 二阶色散 三阶色散     

用多极理论分析圆桩对称微波谐振腔

用多极理论计算具有复杂几何形状、圆柱对称微波腔的谐振频率,推导出用多极理论计算圆柱对称微波腔谐振频率的本征值方程。三个工程实例的计算结果表明,用多极理论计算圆柱对称微波腔谐振频率,不仅具有较高的计算精度,而且可以很方便地应用于复杂几何形状圆柱对称微波腔工程问题的设计与计算,多极理论是计算圆柱对称微波腔谐振频率的一种有效方法。