Laguerre超群上的Hardy-Littlewood-Sobolev不等式

利用Laguerre超群K上的广义次拉普拉斯算子L定义K上的Riesz位势,并证明它是Lp(1p+∞)有界和弱(1,1)有界的,即证明K上的Hardy-Littlewood-Sobolev不等式.它为进一步分析K上的偏微分方程问题提供了一个有利的工具.     

2π空间发光的理想点光源系统

为获得能在２π空间发光的理想点光源，本文提出了一种特殊光学系统，介绍了这种系统的工作原理、设计方法和设计结果。     

面向实时图像处理的嵌入式操作系统研究

针对基于ADSP14060的图像实时处理系统,根据层次化的思想,设计并实现了一个具有代码量少、可移植、可裁减的嵌入式操作系统。该系统不但具有任务管理、资源管理、片内任务通信等基本功能,还具有片问任务的通信与同步这一重要功能。实验结果表明,该系统实时性强、稳定性好,可得到满意的图像并行处理效果。     

局部多项式回归的图像重建改进

针对随机取样产生的低分辨率图像的分布特性,在局部多项式回归的数学模型下,利用经典核回归方法重建图像的过程中,引入与取样窗范围内随机取样像素点数目相关的权重项。改进的权重函数同时受取样窗范围的控制,更具适应性,利用可控核回归方法引入局部方向信息提高重建图像的局部结构特征。仿真结果表明,改进后的方法不仅提高了重建图像的分辨率,而且降低了重建图像的均方误差。     

一种改进的支持向量机模式分类方法

支持向量机(Support Vector Machine,SVM)是在统计学习理论基础上发展起来的一种新的机器学习方法,已成为目前研究的热点,并在模式识别领域有了广泛的应用.首先分析了支持向量机原理,随后引入一种改进的径向基核函数,在此基础上,提出了一种改进核函数的SVM模式分类方法.与基于IRIS数据,进行了计算机仿真实验,与基干模糊k-近邻的模式分类仿真结果比较,结果表明改进的SVM方法分类性能比模糊k-近邻算法(Fuzzy k-Nearest Neighbor,FKNN)的分类性能更好,运算时间更短,更易于实时实现.     

基于Vague集的多属性决策新方法——投影法

定义了Vague集理想方案以及决策方案在Vague集理想方案上的投影等概念,提出了一种新的基于Vague集的多属性决策方法--投影法,该方法利用决策方案在Vague集理想方案上的投影进行排序并选出最优方案,为决策系统提供了一个有用的工具.实例分析表明了该方法的有效性和实用性.     

INCUBATION OF BARLEY KERNEL SECTIONS WITH PURIFIED CELL WALL DEGRADING ENZYMES

The effects of purified Trichoderma reesei endo-xylanase, XYN II and endoglucanases, EG I and EG II on the cell walls of embedded barley cross sections were studied. The cell walls were stained with Calcofluor which is specific for (1–3)(1–4)-β-D-glucans (mixed-linked β-glucans) in histochemical applications. Whereas endosperm cell walls remained highly fluorescent after incubation with buffer, the aleurone cell walls were only weakly fluorescent. Both EG I and EG II were effective in degrading the outer endosperm cell walls, but had little or no effect on the inner endosperm and aleurone cell walls. Corresponding sections incubated with XYN II showed highly intensive fluorescence of aleurone cell walls suggesting that the surface of alaurone cell walls contains a high level of xylan which is removed by xylanase treatment exposing a layer rich in mixed linked β-glucans. This indicates that arabinoxylans and β-glucans in the aleurone cell walls of barley exist as separate, macroscopic layers. Xylanase did not have any Influence on the microstructure of endosperm cell walls which are rich in mixed linked β-glucans. However, incubation with EG II after xylanase treatment caused the aleurone cell walls to become very thin.     

DATA PREPROCESSING AND RE KERNEL CLUSTERING FOR LETTER

Many classifiers and methods are proposed to deal with letter recognition problem. Among them, clustering is a widely used method. But only one time for clustering is not adequately. Here, we adopt data preprocessing and a re kernel clustering method to tackle the letter recognition problem. In order to validate effectiveness and efficiency of proposed method, we introduce re kernel clustering into Kernel Nearest Neighbor classification （KNN）, Radial Basis Function Neural Network （RBFNN）, and Support Vector Machine （SVM）. Furthermore, we compare the difference between re kernel clustering and one time kernel clustering which is denoted as kernel clustering for short. Experimental results validate that re kernel clustering forms fewer and more feasible kernels and attain higher classification accuracy.     

基于路径标识的多路径域间路由的开发与实现

针对现有网络架构中路由扩展性方面的问题日益严重,目前提出一种基于路径标识的多路径域间路由方案,可提高域间路由可扩展性和可靠性,但该研究只停留在理论阶段。现对基于路径标识的多路径路由协议进行了开发与实现,针对域间路由协议BGP的控制层和基于Linux内核的转发层进行了具体模块的结构分析和开发,并进行了功能性测试。结果显示,开发系统可以实现路径标识路由和多路径路由的功能。