NEUMANN SERIES SOLUTION TO A NEUTRON TRANSPORT EQUATION OF SLAB GEOMETRY

This paper deals with the solution to an energy, dependent stationary neutrontransport equation of slab geometry. In L~p space, the equation is converted into an equiva-lent integral equation. By the study of the corresponding integral operator and its spectralradius, results of Neumann series solution are obtained, and an easy-verified condition thatthe transport equation has a nonnegative solution is given.     

A FURTHER GENERALIZATION OF JUNG''''S THEOREM

Let G be a graph of order n. We define the distance between two vertices u andv in G, denoted by d(u, v), as the minimum value of the lengths of all u-v paths. We writeσ_k(G)=min{∑_i=1~k d(v_i)|{v_1, v_2,…, v_k} is an independent set in G} and NC2(G)=min {|N(u)∪N(v)| | d(u, v)=2}. We denote by ω(G) the number of components of agraph G. A graph G is called 1-tough if ω(G\S)≤|S| for every subset S of V(G) withω(G\S)>l. By c(G) we denote the length of the longest cycle in G; in particular, G iscalled a Hamiltonian graph if c(G)=n. H.A. Jung proved that every 1-tough graphwith order n≥11 and σ2≥n-4 is Hamiltonian. We generalize it further as follows: ifG is a 1-tough graph and σ3(G)≥n, then c(G)≥min {n,2NC2(G)+4}. Thus, theconjecture of D. Bauer, G. Fan and H.J. Veldman in [2] is completely solved.     

线性代数教学内容改革的研究与实践

针对当前线性代数教材在教学内容及内容编排上存在的问题,提出了改进方案,并在教学过程中进行了实践。     

基质组成对MgO-Al2O3质浇注料性能的影响

研究基质组成对MgO-Al2O3质浇注料热震稳定性和抗渣性能的影响.结果表明,随着α-Al2O3含量的增加,MgO-Al2O3质浇注料1600℃×3 h抗折强度逐渐降低,α-Al2O3质量分数大于15%后抗折强度明显增大;α-Al2O3加入量为10%～15%时浇注料具有最佳的热震稳定性;随着α-Al2O3含量的增加,浇注料渗透指数明显减小,侵蚀指数逐渐增大.MgO-Al2O3质浇注料的性能主要与基质的组成和显微结构相关.     

基于行为的机器人学

系统综述了基于行为的机器人学的研究 ,论述了基于行为的机器人学的研究特征 ,内容和方法论 .同时介绍了通用行为结构和基于行为的机器人的设计方法 .     

下一代网络中软交换技术及其Qos问题的研究

讨论下一代网络（NGN）的特征、网络结构，面向NGN的软交换（Softswitch）解决方案以及现有软交换技术的发展方向，着重阐述了软交换的核心思想以及MPLS在解决NGN中的Qos的优势所在。     

基于α-Stable自相似随机过程的通信网业务量建模

针对现代通信网业务量在幅度和时间尺度上的突发特性，提出了一种综合稳定分布和高斯自相似分布的模型，即基于α-Stable自相似过程的模型来同时反映业务量的两种突发特性，并通过仿真证明了它非常适合于现代通信网的业务量，该模型可以根据不同的性能需要来产生相应的模拟业务量，从而对网络业务量性能相关的研究有一定的实用价值。     

评当代西方外语阅读研究的主要趋向

本文通过评述西方学者借助于现代语言学理论和认知心理学理论开展对外与阅读教学的研究，介绍当代西方在外语阅读研究过程中对语言标准和阅读行为、阅读的心理过程、阅读的认知过程和语篇教学的认识，基本反映了西方学者开展外语阅读研究的基本理论和实践趋向。     

基于Neuro-Fuzzy方法的Web服务器访问流量预测

Neuro Fuzzy方法是将神经网络和模糊逻辑有机的结合 ,用于解决复杂的非线性问题 ;用它来进行Web服务器流量预测 ,是一种新的思路和方法 .主要介绍了模型构造的基本思想、结构、算法以及实验数据     

Research on the Architecture of e-manufacturing and Its Application

This paper introduces the conception of e-manufacturing and puts forward a reference architecture of e-manufacturing. Some features of e-manufacturing and three types of information sharing are discussed. An application for monitoring equipment with e-mail is given.