Correlation between the Standard Formation Enth alpy and the Path Index of Pyridine Derivatives

A formulated as △fH m ? (PPDs,g)=a+ΣbiPi + cifi is put forward for estimating standard formation enthalpies of pyridine-derivatives (PDDs), in which,P i is path index andc i f i is an amended term of interaction between substituent and N atom on pyridine ring. The Calculations based on the model were carried out for some pyridine-derivatives. The values of standard formation enthalpy calculated are consistent with those in literature.

基于MAS的编队对地攻击仿真评估

针对协同对编队对地攻击作战效能的影响,提出了基于多智能体(Multi-Agent System,MAS)的编队对地攻击作战效能评估方法。根据编队中各实体具有的自主性或半自主性特点,以及各实体的功能与作战过程,分别建立了编队作战实体的Agent模型以及基于实体Agent交互的编队对地攻击体系的MAS模型。在此基础上,以HLA技术为支撑研究了MAS模型的仿真实现问题,实现了基于MAS的编队对地攻击协同作战效能的仿真评估。该方法有效解决了编队对地攻击体系通过协同产生的整体行为建模问题,从而解决了编队整体合力产生的作战效能评估问题。

飞机维修手册的语言特点及翻译

飞机维修手册的语言在用词上具有词性唯一化、词义单义化、构词规范化的特点,用句方面有直陈句、被动句、长句、复杂句多的特点,其翻译就具有相应的技巧和独特的处理方式。本文通过具体实例探讨了飞机维修手册的翻译技巧。