素数阶循环图的线性变换与若干Ramsey数Rn（5）的下界

本文用群论和数论研究阶循环图，探讨循环群的正规子群的结构，给出探索（Ｒａｍｓｅｙ数Ｒｎ（５）下界的一般方法，得到若干Ｒａｍｓｅｙ数Ｒｎ（５）新的下界。     

4个多色Ramsey数的下界

研究了素数阶完全图Ｋｐ的边的ｎ－染色，给出了计算它的子图Ｇｐ（Ｓｉ）的团数的一种算法，得到１个三色，３个四色Ｒａｍｓｅｙ数的新的下界     

三个Ramsey数R(3,q)的新下界*

通过构造三个循环图,得到了三个经典Ramsey数R(3,q)的新下界:R(3,34)≥223,R(3,36)≥237,R(3,38)≥254。     

Ramsey数R（4,q）的几个下界

本文使用已获得的Ｒａｍｓｅｙ数下界：Ｒ（４，１２）≥１２８，应用递推公式给出Ｒ（４，ｑ），当ｑ＝１３，１４，１５，１６，１７，１８时，分别大于等于１３１，１３６，１４５，１５２，１６２，１７６。这６个新的Ｒａｍｓｅｙ数下界均超过目前已知最好的下界或填补了目前的空白。     

低度图的点覆盖和独立集问题下界改进

给出了一种提高低度图点覆盖和独立集问题下界的精确算法．通过分析如何有效地减少图中的顶点来打破原问题的NP-Hard结构建立起搜索递推关系;得出3度图的最小点覆盖问题的解决时间为O(1．1033^n),参数化的3度图点覆盖问题的解决时间为O(kn 1．2174^k);将此算法应用到3度图的最大独立集问题上,可以得到运行时间为O(1．1033^n)的解．以上3结果均打破原有最佳下界。     

用自同构循环图计算Ramsey数R(3,q)的下界*

确定经典Ramsey数的下界是组合数学中非常困难的问题,因而人们常用各种方法计算它的界。发现一种新的方法, 即自同构循环图的方法,计算得到三个经典Ramsey数的新下界：R(3,30)≥188,R(3,33)≥217,R(3,34)≥225。     

三维网格图的零可视警察与强盗博弈算法

警察与强盗博弈是一个图搜索问题,解决该问题的关键是确定能成功捕获强盗的最少警察数。在零可视警察与强盗博弈中强盗不可见：任意时刻警察都不知道强盗所在位置。通过建立顶点清理模型对三维网格图的性质进行分析,将三维网格图的顶点集划分成2个子集,导出划分中较小子集与边界的关系,并利用划分中的结论,给出三维网格图中最少警察数的下界。结合图搜索的单调性原则,给出一种可行的单调性搜索策略,确定三维网格图中最少警察数的上界。最后提出一种在三维网格图中最少警察数范围内可行的搜索算法。     

经典Ramsey数R（5,14）的下界

研究了素数阶循环图的一些性质，得到了一个Ｒａｍｓｅｙ数新的下界：Ｒ（５，１４）≥１５２。     

求解Ramsey数下界的模拟退火算法

对于图G_1、G_2,2色广义Ramsey数R(G_1,G_2)是指最小正整数P,使得每一个p阶的图G,或者G包含G_1,或者G的补图包含G_2。用改进的模拟退火算法求解得到了R(W_m,K_n),R(B_m,K_n),R(F_m,K_n),类型的一些Ramsey数的下界。     

3个三色Ramsey数R（3,3,q）的新下界

研究了正则的素数阶循环图，提出了计算多色Ｒａｍｓｅｙ数Ｒ（ｑ１，ｑ２，．．．，ｑｎ）的下界的一种算法，得到３个三色Ｒａｍｓｅｙ数的新下界：Ｒ（３，３，１４）≥１８２，Ｒ（３，３，１５）≥１９２，Ｒ（３，３，１６）≥２３４．     

European Community policy and the market

Abstract This paper starts with some reflections on the policy considerations and priorities which are shaping European Commission (EC) research programmes. Then it attempts to position the current projects which seek to capitalise on information and communications technologies for learning in relation to these priorities and the apparent realities of the marketplace. It concludes that while there are grounds to be optimistic about the contribution EC programmes can make to the efficiency and standard of education and training, they are still too technology driven.     

一种自适应子融合集成多分类器方法

融合集成方法已经广泛应用在模式识别领域,然而一些基分类器实时性能稳定性较差,导致多分类器融合性能差,针对上述问题本文提出了一种新的基于多分类器的子融合集成分类器系统。该方法考虑在度量层融合层次之上通过对各类基多分类器进行动态选择,票数最多的类别作为融合系统中对特征向量识别的类别,构成一种新的自适应子融合集成分类器方法。实验表明,该方法比传统的分类器以及分类融合方法识别准确率明显更高,具有更好的鲁棒性。     

基于QTE的蒙古文显示机制研究与实现

蒙古语言是中国蒙古族使用的通用语言,由于蒙古文区别于其他文字的书写方式和其自身变形机制等特点,在很多通用的文字处理引擎中都不被支持。在嵌入式产品开发与应用领域中Linux加QTE已经成为流行方式。该文给出了一种在QTE环境上实现基于标准Unicode的蒙古文点阵显示和变形算法, 并自定义了支持蒙古文的QTE组件,扩展了QTE功能,为在Linux加QTE方式的嵌入式体系结构中处理蒙古文提供了一种解决方法。     

基于AD9626的模拟信号采集存储卡设计

自然界的绝大部分信号都是以模拟的形式存在,因此模拟信号的采集转换存储在数字时代十分关键。文章讨论了在雷达信号处理领域基于AD9626的AD采集存储卡的设计原理、硬件结构和程序设计与芯片配置等问题,为今后相关领域的研究提供了可参考的方案。     

煤矿井下安全监控分站的设计及其仿真实现

为了设计一种具有低成本、低功耗、易操作、功能强且可靠性高的煤矿井下安全分站,针对煤矿安全生产实际,文章提出了采用MCS-51系列单片机为核心、具有CAN总线通信接口的煤矿井下安全监控分站的设计方案;首先给出煤矿井下安全监控分站的整体构架设计,然后着重阐述模拟量输入信号处理系统的设计过程,最后说明单片机最小系统及其键盘、显示、报警、通信等各个组成部分的设计;为验证设计方案的可行性与有效性,使用Proteus软件对设计内容进行仿真验证,设计的煤矿井下安全监控分站具有瓦斯、温度等模拟量参数超标报警功能和电机开停、风门开闭等开关量指示功能;仿真结果表明:设计的煤矿井下安全监控分站具有一定的实际应用价值.     

A human-computer interface for non-computer specialists

The COM teleconferencing system was designed to be easy to use for both beginners and people with much computer experience. A number of design choices in organizing the human-computer interface were considered very carefully. These design problems are not unique for teleconferencing applications, but will appear in many other developments of human-computer interfaces for non-computer specialists. This report discusses naming conventions, menu format, user commands, help facility and the treatment of ‘type ahead’ from the users.     

Explanation and prediction: an architecture for default and abductive reasoning

Although there are many arguments that logic is an appropriate tool for artificial intelligence, there has been a perceived problem with the monotonicity of classical logic. This paper elaborates on the idea that reasoning should be viewed as theory formation where logic tells us the consequences of our assumptions. The two activities of predicting what is expected to be true and explaining observations are considered in a simple theory formation framework. Properties of each activity are discussed, along with a number of proposals as to what should be predicted or accepted as reasonable explanations. An architecture is proposed to combine explanation and prediction into one coherent framework. Algorithms used to implement the system as well as examples from a running implementation are given.     

Call for papers Special issue on Modeling and control technologies for civil,energy,and power systems

正The control of civil,energy,and power systems presents significant new challenges for modeling and control theory.The purpose of this special issue is to provide a forum for researchers and practical engineers to discuss the recent advances in modeling and control technology development for civil,energy,and power systems.Prospective authors are invited to submit their original contributions with the focus on theory or applications of modeling,control     

Information for Authors

正http://www.zju.edu.cn/jzus http://www.springerlink.com Aim The Journals of Zhejiang University-SCIENCE(A/B/C)are edited by the international board of distinguished Chinese and foreign scientists,and are aimed to present the latest developments and achievements in scientific research in China and overseas to the world’s scientific circles,especially to stimulate and promote academic exchange between Chinese and foreign scientists everywhere.     

Information for Authors

正http://www.zju.edu.cn/jzus http://www.springerlink.comAim The Journals of Zhejiang University-SCIENCE(A/B/C)are edited by the international board of distinguished Chinese and foreign scientists,and are aimed to present the latest developments and achievements in scientific research in China and overseas to the world’s scientific circles,especially to stimulate and promote academic exchange between Chinese and foreign scientists everywhere.