论高校教学资源库建设

随着教育信息化的深入发展,教学资源库已经成为新一代校园信息环境的心脏.以下从教学资源库建设的含义、技术规范、系统管理、资源来源及存在问题和对策几个方面来探讨高校校园网教学资源库建设.     

Cluster Synchronization in a Complex Dynamical Network with Two Nonidentical Clusters

This paper further investigates cluster synchronization in a complex dynamical network with two-cluster. Each cluster contains a number of identical dynamical systems, however, the subsystems composing the two clusters can be different, i.e., the individual dynamical system in one cluster can differ from that in the other cluster. Complete synchronization within each cluster is possible only if each node from one cluster receives the same input from nodes in other cluster. In this case, the stability condition of one-cluster synchronization is known to contain two terms： the first accounts for the contribution of the inner-cluster coupling structure while the second is simply an extra linear term, which can be deduced by the ＂same-input＂ condition. Applying the connection graph stability method, the authors obtain an upper bound of input strength for one cluster if the first account is known, by which the synchronizability of cluster can be scaled. For different clusters, there are different upper bound of input strength by virtue of different dynamics and the corresponding cluster structure. Moreover, two illustrative examples are presented and the numerical simulations coincide with the theoretical analysis.     

网络监听及其防范

网络监听技术在帮助网络管理员监测网络传输的数据、排除网络的故障等方面具有很大的作用,然而网络监听也给以太网的安全带来了极大的隐患。为了更好地管理网络、保证数据传输过程中的安全性、保密性,对网络监听的工作原理和网络监听实现方式的研究很有必要,可在此基础上做出具有针对性的防范措施来防止网络被攻击。     

基于RBF网络的虚拟仪表人机界面评价方法

提出了基于RBF网络的虚拟仪表人机界面主观评价方法和评价指标。利用RBF网络的自组织、自学习与自适应特性对网络进行训练,使网络学习隐含在训练数据中的人机界面主观评价指标的权重规律,自适应调整主观评价指标的权重,克服了主观赋权法的随机性因素影响。建立了虚拟光柱表人机界面,开发了基于RBF网络的虚拟光柱表人机界面主观评价模型;对训练样本数为50,75和100的三组虚拟仪表网络模型进行了误差分析。分析结果表明,采用75个训练样本可以得到满意的主观评价精度。     

未来的移动互联网中OFDM技术浅析

从发展的角度对未来移动互联网技术进行了探讨,介绍了基于无线环境的正交频分复用(OFDM)调制解调技术。剖析了OFDM离散傅立叶反变换/离散傅立叶变换(IDFT/DFT)及高效编码方法等关键技术。     

Operational Patterns of Industrial Symbiosis Network in Industrial Cluster District Based on Circular Economy Theory

Industrial symbiosis network （ISN） is an efficient organizational form for improving resource recycling and efficiency in industrial cluster district. Because of the variety of industrial cluster district formation model, the industrial symbiosis network is different with each other. Based on the circular economy theory, combing with international tendency of cluster district, the paper puts forward the relying-on-oriented industrial symbiosis network. Meanwhile, it also analyzes its organizational mechanism, operating pattern and environmental performance. Through the above efforts, we hope it could be helpful for industry cluster district sustainable development in China.     

多功能计算机实验室的设计与实现

通过在实验室内部安装Novell服务器与NT服务器并用的局域网,并由此局域网实现远程教育,创建一个拥有现代教育技术的多功能多媒体计算机实验室。     

论网络环境下的高校图书馆参考咨询服务

本文主要论述了网络环境下的高校图书馆参考咨询常见的服务项目及其特点,研究了网络环境下的高校图书馆参考咨询服务的发展方向。     

智能网是实现固定网和移动网个人通信的基础

从智能网与个人通信的关系出发，讨论智能网的业务处理模型；根据个人通信的基本要求，讨论如何利用智能网，在固定网和移动网中实现基本的个人移动业务。     

基于神经网络的模糊控制规则校正方法研究

对由模糊控制器构成的集散控制系统，现场模糊控制器的控制规则的校正是一个关键问题。若使其自身具有自校正功能，对于基于数字单片机开发的模糊控制器来说，采用神经网络构成在线自校正方式，存在一定的困难。为了提高控制器的性能，规则校正又是必需的，为此，本文提出了一种由监控机对每台现场控制器进行分时校正规则的方法，该方法是“半在线式”校正。