Some improved results on communication between information systems

To study the communication between information systems, Wang et al. [C. Wang, C. Wu, D. Chen, Q. Hu, C. Wu, Communicating between information systems, Information Sciences 178 (2008) 3228-3239] proposed two concepts of type-1 and type-2 consistent functions. Some properties of such functions and induced relation mappings have been investigated there. In this paper, we provide an improvement of the aforementioned work by disclosing the symmetric relationship between type-1 and type-2 consistent functions. We present more properties of consistent functions and induced relation mappings and improve upon several deficient assertions in the original work. In particular, we unify and extend type-1 and type-2 consistent functions into the so-called neighborhood-consistent functions. This provides a convenient means for studying the communication between information systems based on various neighborhoods.     

缓变温度检测分析系统

随着现代信息技术的飞速发展,温度采集管理系统在工业、农业及人们的日常生活中扮演着一个越来越重要的角色。本文设计了一个简单、实用的温度采集管理系统,系统是由上位机和下位机构成的。下位机以51单片机为处理器,包含有单线式数字温度传感器、LED数码管、按键、I2C存储器和RS232接口等构成一个温度采集检测系统。上位机是通过LabVIEW实现温度采集检测系统,可动态显示温度值,也可设置上下限报警温度值,完成数据的分析和保存。该研究对变化温度的检测、采集、分析有一定的应用价值。     

ASP.NET中实现数据分页的几种方法

ASP.NET是一种服务器端制作动态WEB页的全新编程手段。该文讨论了在ASP.NET框架下对WEB数据库几种实现分页显示的方法。对利用自带分页功能的数据控件(如:DataGrid)和对于没有自带分页功能的控件(如:DataList)进行分页分别结合实例进行了详细的阐述。     

基于S3C2440的嵌入式Linux内核设计

该文介绍了三星公司的基于ARM9内核S3C2440芯片嵌入式Linux系统设计。在确认已经移植好的U-boot的基础上,进行控制模块基于ARM9的Linux嵌入式系统设计方案,裁剪并移植Linux内核。     

校园网安全系统的设计与实现

校园网的普及,在提高学校工作效率的同时,也带来了安全方面的隐患。本文分析校园网中网络结构、网络协议和操作系统等方面缺陷,列举了常见的攻击手段。以某高校为例,提出了一个多层次、全方位等校园网安全系统的设计方案,并给出了实现方法。经实践验证,在保证网络效率的前提下,提高了校园网的安全性。     

A network-based mobility management scheme for future Internet

The current Internet was originally designed for “fixed” terminals and can hardly support mobility. It is necessary to develop new mobility management schemes for the future Internet. This paper proposes an Identifiers Separating and Mapping Scheme (ISMS), which is a candidate for the future Internet mobility management, and discusses the basic principles and detailed message flow. ISMS is a network-based mobility management scheme that takes advantage of the identity and location separation. The mobility entities in the core network are responsible for the location management. ISMS is designed to satisfy the requirements of faster handover, route optimism, advanced management, location privacy and security. The average handover delay of ISMS is on the order of milliseconds only, which is far smaller than that of Mobile IPv6. Analyses show that ISMS can reduce packet overhead on wireless channels. We build a prototype and perform some experiments. Results verify the feasibility of ISMS.     

基于Biclustering的中医药症关系分析

针对中医临床中的药症关系知识发现问题,在计算药症相关相似度的基础上,采用Biclustering分析方法获得中医临床诊疗中的重要药物配伍信息,并发现与这些药物配伍相应的临床症状。研究结果表明,Biclustering方法是一种有效的中医药物配伍和药症关系分析方法。     

面向多核的基于RSTM系统的冲突管理策略

程序并行化是充分发挥多核处理器性能的有效手段。现有编程模型受锁、管道等同步方式的约束,并行度很难提高。针对上述问题,提出一种面向多核的基于Rochester软件事务存储(RSTM)系统的冲突管理策略,在现有编程语言中提供接口,通过事务方式提高程序并行度,以优先级方式解决2个事务发生冲突时的裁决问题,减少不必要的一致性验证,减小系统开销。     

气象软件设计模式的研究与实现

介绍现有气象软件系统设计模式,分析国内气象业务特点和功能需求,提出一种新的设计模式。给出该模式下的数据转换和质量控制模型、组件封装模型、专业模块插件模型、总体框架模型。阐述在数据存储、组件开发、接口设计中实现技术共享、业务变化和技术更新的方式,解决系统低层和高层间的资源与技术复用问题,实现资源共享、集约化的系统设计。