民用航空电子系统网络安全验证方法研究

针对民用飞机适航中的网络安全特殊风险,通过研究美欧等民航审定机构的网络安全特殊风险的测试过程和方法,结合常用的符合性测试方法提出了民用飞机电子系统网络安全测试方法。基于DO-326A中的网络安全测试框架,提出航电系统适用的网络安全鲁棒性测试方法与网络安全脆弱性测试方法。该方法为民用飞机电子系统网络安全适航提供了可行的思路。     

校园网漏洞检测与防范

本文对目前校园网常见的sql注入攻击、上传漏洞、密码泄露典型安全隐患进行分析,给出了利用网络安全测试工具测试校园网安全方法,提高诊断网络安全效率。针对具体网络安全漏洞,给出改进后编程代码,并通过远程方法直接为网络漏洞嵌入补丁。     

网络渗透攻击测试技术研究

随着互联网的快速发展,网络安全问题越来越受到重视,而网络渗透攻击测试是评估网络安全风险的重要手段。本文对网络渗透攻击测试技术（以下简称渗透测试）进行了研究。首先,介绍了渗透测试的概念和目的。其次,对渗透测试的方法进行了分类和详细描述,包括外部渗透测试、内部渗透测试、盲式渗透测试和定向渗透测试。最后,对渗透测试的实施过程进行了分析,包括信息收集、漏洞扫描、权限升级、密码破解、痕迹清除与渗透测试报告撰写。     

模块类网络安全产品的智能测试系统设计

为了提高模块类网络安全产品的批量测试效率,降低人力成本及换线时间,开展了模块类网络安全产品的智能测试系统设计;通过对模块类网络安全产品的智能测试需求进行分析,采用将搭载图像传感器的工业机械手与基于PXI架构的测试系统相结合的技术路线,并对机械手控制技术和PXI总线测试平台设计技术进行了研究;创新设计了模块类网络安全产品的智能测试系统,对测试工艺流程进行优化与再造,实现了产品上下料、型号识别与柔性换线、智能装夹、批量测试、合格品与不合格品分拣等流程的一站式无人值守运转;经实际应用验证,智能测试系统的单日测试产能提升超过180%,单日人工工时减少93%以上,换线时间从平均70分钟减少到10分钟以内。     

基于SSL协议的网络安全模型及其实现

文章介绍了基于安全套接层协议的三种网络安全模型,提出了扩展ＳＳＬ协议的算法和实现。分析和实验表明,上述模型能够有效地解决网络安全中的加密和解密,签名和验证问题。     

Web防火墙仿真在网络安全实验中的应用

在目前的网络安全实验中,只有对防火墙的仿真,缺乏对Web防火墙的仿真。EVE-NG是下一代的网络模拟器,支持多厂家、多类型的网络设备和网络安全设备仿真。本文基于EVE-NG平台,介绍了网络安全设备在EVE-NG上的仿真使用,设计构建了包含web防火墙的网络安全实验环境,并对于防护效果进行了测试验证。结果表明,这种方法可以有效解决目前高校在网络安全实验中缺乏web防火墙的问题。     

支持向量机实现网路安全态势评级

为了缓解越来越严重的网络安全问题,可以使用网络安全态势评估技术,提前将影响网络安全的因素进行优化。尝试将支持向量机技术应用于网络安全态势评估之中,取了一种人工神经网络的评估方法应用与之作对比,采用了大量的实验数据训练模型,并用部分数据进行测试。     

IP网络安全测试研究

确保IP网络安全成为目前必须解决的问题,而解决这个问题的关键一步则是IP网络安全测试,只有IP网络安全测试合格,网络安全才有可能性.本文对网络安全测试进行了详细和系统的介绍,争取让每个读者都能有详细的了解,并且对网络安全测试内容和网络安全测试方法进行了明白的描述,能够帮助不了解的人加深了解.     

网络安全检测分解模型分析

网络的发展及网络规模的快速扩大,对网络安全管理带来了极大的挑战,其中人工智能已成为信息化的发展趋势。主要研究了网络安全检测模型行,在总结DoS/DDoS基本技术的基础上,对现有网络安全模型进行分析,据此完成了改进的网络安全模型的构建。对网络攻击行为应用支持向量机完成分类,同时采用了基于多个核函数的混合策略的算法,数据包通过改进的网络安全模型即可完成训练和测试。通过测试,结果表明提出的方法比传统软硬件相结合的网络防御系统更能满足网络的攻防需求,具有较高的实际应用价值,可以为网络安全检测模型的完善提供参考。     

网络通信中的基本安全技术

介绍了网络安全的基本内容，详细分析了ＤＥＳ、ＲＳＡ、数字签名、数字信封、密钥管理和ＣＡ认证体系等基本的安全技术。     

Only connect: teaching, technology and telesis

Abstract This paper describes an approach to the design of interactive multimedia materials being developed in a European Community project. The developmental process is seen as a dialogue between technologists and teachers. This dialogue is often problematic because of the differences in training, experience and culture between them. Conditions needed for fruitful dialogue are described and the generic model for learning design used in the project is explained.     

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。     

Avoiding semantic and temporal gaps in developing software intensive systems

Development of software intensive systems (systems) in practice involves a series of self-contained phases for the lifecycle of a system. Semantic and temporal gaps, which occur among phases and among developer disciplines within and across phases, hinder the ongoing development of a system because of the interdependencies among phases and among disciplines. Such gaps are magnified among systems that are developed at different times by different development teams, which may limit reuse of artifacts of systems development and interoperability among the systems. This article discusses such gaps and a systems development process for avoiding them.     

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。     

Designing economic np control charts: A programmed simulation approach

This paper presents control charts models and the necessary simulation software for the location of economic values of the control parameters. The simulation program is written in FORTRAN, requires only 10K of main storage, and can run on most mini and micro computers. Two models are presented - one describes the process when it is operating at full capacity and the other when the process is operating under capacity. The models allow the product quality to deteriorate to a further level before an existing out-of-control state is detected, and they can also be used in situations where no prior knowledge exists of the out-of-control causes and the resulting proportion defectives.     

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。     

The development of robot art

Going through a few examples of robot artists who are recognized worldwide, we try to analyze the deepest meaning of what is called “robot art” and the related art field definition. We also try to highlight its well-marked borders, such as kinetic sculptures, kinetic art, cyber art, and cyberpunk. A brief excursion into the importance of the context, the message, and its semiotics is also provided, case by case, together with a few hints on the history of this discipline in the light of an artistic perspective. Therefore, the aim of this article is to try to summarize the main characteristics that might classify robot art as a unique and innovative discipline, and to track down some of the principles by which a robotic artifact can or cannot be considered an art piece in terms of social, cultural, and strictly artistic interest. This work was presented in part at the 13th International Symposium on Artificial Life and Robotics, Oita, Japan, January 31–February 2, 2008     

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.