期刊文献+
共找到2篇文章
< 1 >
每页显示 20 50 100
PVC与ATOC相互作用的模拟分析
1
作者 李席 李建 +4 位作者 贺冉冉 金效齐 秦英月 高雨 王传虎 《塑料》 CAS CSCD 北大核心 2021年第3期143-146,共4页
乙酰柠檬酸三辛酯(ATOC)是一种无毒环保型增塑剂,可用于增塑改性聚氯乙烯(PVC)。为研究PVC与ATOC之间相互作用,采用分子动力学模拟方法,构建了不同质量含量(100/0,90/10,70/30,50/50和0/100)的PVC/ATOC模型,计算分析了PVC/ATOC体系的相... 乙酰柠檬酸三辛酯(ATOC)是一种无毒环保型增塑剂,可用于增塑改性聚氯乙烯(PVC)。为研究PVC与ATOC之间相互作用,采用分子动力学模拟方法,构建了不同质量含量(100/0,90/10,70/30,50/50和0/100)的PVC/ATOC模型,计算分析了PVC/ATOC体系的相容性(可混合性、组分溶度参数和径向分布函数)和玻璃化转变温度。研究结果表明,PVC与ATOC溶度参数差为2.0 (J/cm^(3))^(1/2),PVC和ATOC结合能分布相似,组分部分相容。PVC/ATOC共混体系的径向分布函数结果进一步证明PVC与ATOC相容,体系分子间的作用主要为范德华(vd W)作用,组分间能够形成氢键,有助于PVC与ATOC形成相容的共混体系。与PVC相比,PVC/ATOC体系的玻璃化转变温度(T_(g))分别降低了27.1、50.0和113.8 K,增塑效果显著。 展开更多
关键词 PVC atoc 相容性 玻璃化转变温度 模拟
原文传递
ANALYSES ON SYSTEMATIC CONFRONTATION OF FIGHTER AIRCRAFT 被引量:3
2
作者 HuaiJinpeng WuZhe HuangJun 《Transactions of Nanjing University of Aeronautics and Astronautics》 EI 2002年第1期37-43,共7页
Analyses of the systematic confrontation between two military forcfes are the highest hierarchy on opera-tional effectiveness study of weapon systema.The physi-cal model for tactical many-on-many engagements of an aer... Analyses of the systematic confrontation between two military forcfes are the highest hierarchy on opera-tional effectiveness study of weapon systema.The physi-cal model for tactical many-on-many engagements of an aerial warfare with heterogeneous figher aircraft is estab-lished.On the basis of Lanchester multivariate equations of square law,a mathematical model corresponding to the established physical model is given.A superiorityh parame-ter is then derived directly from the mathematical model.With view to the high -tech condition of modern war-fare,the concept of superiority parameter which more well and truly reflects the essential of an air-to-air en-gagement is further formulated.The attrition coeffi-cients,which are key to the differential equations,are de-termined by using tactics of random target assignment and air-to-air capability index of the fighter aircraft.Hereby,taking the mathematical model and superiority parameter as cores,calculations amd analyses of complicate systemic problems such as evaluation of battle superiority,prog-mostication of combat process and optimization of colloca-tions have been accomplished.Results indicate that a clas-sical combat theory with its certain recent development has received newer applications in the military operation research for complicated confrontation analysis issues. 展开更多
关键词 aerial warfare suste atoc cpmfrpmatopm op-eratopmal effectovemess SUPERIORITY parame-ter Lanchester equation FIGHTER AIRCRAFT 战斗机 战斗机 作战效能 空战 武器对抗
在线阅读 下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部