面向业务的安全管理模型研究

文章结合目前各种网络业务系统对安全管理的迫切需求,设计了面向业务的安全管理模型,分析了模型中涉及的安全事件关联分析技术和安全态势感知技术等关键技术,并就安全管理的发展趋势进行了探讨.     

从工程应用型人才培养看计算机组成原理课程设计

针对计算机专业本科生存在的应用能力弱、工程研发能力不足、科研创新意识匮乏、重视软件而轻视硬件的状况,在分析学生现状及国内外相关教改成果的基础上,结合计算机组成原理课程设计实践,阐述了以工程研发为背景的应用型本科人才培养的观点。     

基于MapX的电磁环境态势显示系统研究

现代战争条件下,电子对抗与反对抗日趋激烈,各种电子装备往往采用调制复杂、参数多变的信号形式,导致战场空间的电磁环境信号空前复杂、密集且相互交迭,因此有效地显示战场电磁环境能为指挥员准确把握战场态势和作战主动权打下坚实基础。本文首先介绍了MapX控件的主要特点和功能,然后以电子地图为基础,分析了态势显示系统的组成结构和系统运行流程,其中重点介绍了系统的功能模块设计,并基于MapX控件给出了实现方法,最后以VC为开发平台,研究提出了系统的实现策略。     

数字图书馆容灾系统建设研究

本文在阐述数据容灾概念与技术的基础上,简单分析了当前几种关键技术,并针对目前我国数字图书馆的可用性与安全性要求高的特点,提出了应用SAN技术实现数字图书馆容灾系统的设计方案,然后对此方案进行了分析,为其他容灾系统的建设起参考与借鉴作用。     

Knowledge and information awareness for initiating transactive memory system processes of computer-supported collaborating ad hoc groups

This paper presents an innovative approach for initiating processes of a transactive memory system in newly formed groups of experts collaborating computer-supported in a complex problem-solving task. Our empirical study compared 15 experimental and 15 control groups, each consisting of triads. In the experimental condition, the triads were provided with a tool for fostering knowledge and information awareness, that is, being informed about the knowledge and the underlying information of the collaboration partners in form of digital concept maps. In the control condition, the groups had no access to this tool. Results confirmed the potential of the tool to initiate processes of a transactive memory system: shared agreement of the knowledge of the other group members’ knowledge proved to influence group performance positively. In addition, previous findings of the tool’s potential to establish knowledge and information awareness and to augment group performance could be replicated. However, the postulated mediating effect of processes of a transactive memory system concerning the impact of knowledge and information awareness on group performance did not reach statistical significance. Aspects for future studies and implications of these findings regarding their practical implementation, for example, in teams of organizations, are discussed.     

Comparative study of three training methods for enhancing process control performance: Emphasis shift training,situation awareness training,and drill and practice

Three training methods to improve attention management skills in process control were compared. Forty students from technical disciplines participated in a five-hour module of emphasis shift training (EST), EST combined with situation awareness training (EST/SA), and drill and practice (D&P) on a simulated process control task. Participants were then tested three times for 45 min each (immediately after training, two weeks after training, and six weeks after training) for system control performance and diagnostic performance on familiar and nonfamiliar fault states. D&P led to superior diagnostic performance on familiar system faults. EST/SA training supported the diagnosis of novel system faults. EST was less effective than expected for system control performance. Implications for training design in process control are discussed.     

建立大网概念在计算机网络教学和人才培养中的作用

针对通信技术发展对高等教育计算机网络课程教学提出的新要求,以及高校计算机网络课程教学中存在的问题,文章从当前社会经济发展所需的可雇用服务型网络人才培养需求出发,探讨建立大网概念在计算机网络教学和人才培养中具有的重要作用,提出在计算机网络教学中建立大网概念的关键在于深入浅出地把握逻辑网络和物理网络之间的关系,实现理论网络与实际网络的统一。     

Group awareness tools: It’s what you do with it that matters

This study examined the effect of using a group awareness tool on online collaboration. Furthermore, we examined whether the effect of using a group awareness tool on online collaboration is mediated by group awareness (i.e., students’ awareness of their group members’ levels of participation). To answer these questions, we determined how often and how long 107 secondary education students used the Participation-tool (PT), a group awareness tool designed to visualize group members’ relative contribution to the online collaborative process. Our analyses show that duration of PT use (how long students displayed the tool on their screens) significantly predicted group members’ participation in the online dialogue, their participation when writing collaborative texts, equality of participation within the group, and coordination and regulation of activities in the relational space (i.e., discussing the collaboration process with group members). No effect of using the PT on group performance was found. Mediation analyses showed that the effect of using the PT is only partially mediated by group awareness: an indirect effect of using the PT, via enhanced awareness of participation, on student participation during chat discussions and the collaborative writing process was found.     

MapX在导弹作战想定态势图的应用与实现

针对某战术导弹训练系统中实现导弹作战过程可视化的要求,在分析MapX功能特性的基础上,应用MapX组件技术在VC++环境上实现了导弹作战过程飞机及导弹飞行轨迹态势图的绘制.结合态势图中真实地理信息下航迹显示功能的实现,重点阐述了MapX中图层绘制技术的应用.