A communication security protocol of mobile agent system

The security issues of mobile agent system have embarrassed its widespread implementation. The paper analyses communication security threats and countermeasures of mobile agent system and proposes a communication security protocol of mobile agent system. It provides multifactor authentication, encryption transmission, and integrity protection of mobile agent.     

理想气体多方过程与非多方过程的热容量

本文阐述理想气体的多方过程与非多方过程热容量的分析及求法．     

The Use of Soft Systems Methodology to Enhance Group Creativity

Soft Systems Methodology is especially useful in diagnosing and addressing organizational problems and designing new systems in cultures that are characterised by pluralistic views and values. This paper demonstrates how SSM workshops in a large government agency resulted in a high level of creativity. SSM is then proposed as a methodology that could enhance group creativity in organizational design contexts.     

铬铁矿的分子动力学势能参数反演

导出一组对铬铁矿及其高压相、分解产物都适用的Buckingham势能参数,用于铬铁矿高压相变、分解以及高压相卸压降温过程的分子动力学模拟.首先,利用密度泛函理论(DFT)计算获得铬铁矿、钙铁相、钙钛相、FeO和Cr2O3不同体积时的结构和总能量.再根据晶格能与总能量之间的关系,由DFT所得结构和总能量,列出势能参数所满足方程组.应用遗传算法这一全局优化算法获得势能参数.为检验所得势能参数的正确性,将其用于分子动力学计算,得出的5种晶体的晶格常数与实验和DFT结果分别差～2%和～1%,得出的5种晶体的V(p)关系与DFT拟合的状态方程曲线相吻合.     

The Knowledge Age or the Age of Ignorance and the Decline of Freedom?

Increasingly knowledge has become a determining factor in achieving life’s potential and is the currency of the age. Without access to Information an individuals’ knowledge base cannot be enriched and without knowledge the individual becomes increasingly powerless. Advances in technology have provided opportunities for some to add to their stock of knowledge but access to sources of information is uneven and can lead to social unrest. The availability of information is an important factor in managing change and empowering citizens. The question about information and power then becomes one of ownership or sovereignty of the information. If we are to create an open society then we need to ensure that there is open access to knowledge through flexible and intelligent information systems that are available for all. In this paper we consider if we are truly entering the knowledge age or the age of ignorance.     

Advances in Arabidopsis research in China from 2006 to 2007

Arabidopsis thaliana, a model plant species, has a number of advantages over other plant species as an experimental organism due to many of its genetic and genomic features. The Chinese Arabidopsis community has made significant contributions to plant biology research in recent years[1,2]. In 2006, studies of plant biology in China received more attention than ever before, especially those pertaining to Arabidopsis research. Here we briefly summarize recent advances in Arabidopsis re-search in China.     

Resolution for Conflicts of Inter-Operation in Multi-Domain Environment

This paper proposes a method to formalize the interoperation in multi-domain environment. Through employing the algebra method, we conclude four types of the conflicts for the interoperation, and analyzes the cause of the policy conflicts. For each type of conflicts, we formalize it and proposes the method of detection and resolution. Finally, the method is illuminated be effective through comparing our work with others.     

体育教学与学生的德育培养

本文主要从三大部分论述了体育教学与思想品德教育的关系,以意志力和责任心为主线,论述了体育教育工作者在实施教学过程中应注意的德育环节,通过实践教学来进行德育也是最为有效的手段.     

湿法磷酸无水物工艺条件下六种云南磷矿的酸分解反应性能研究

本文研究了6种云南磷矿在湿法磷酸无水物工艺条件下的酸分解反应性能.实验发现,在无水物工艺条件下,磷矿的酸分解反应性能要比在二水物和半水物工艺条件下的差;对尖山磷矿的实验表明,延长反应时间至4 h,只要液相游离硫酸浓度不大于3％,在无水物条件下,也能达到比较高的分解率.