Electronic Properties of Organic Semiconductors Based on Nonconjugated Polymers

1 Results The paper presented review of experimental results on the charge transport study in the polymer materials,possessed charge instability.The base of these materials is noncojugated polyaromatic compounds.Characteristic feature these materials is a wide of band gap up to 4.3 eV and the value of first ionization potential about 6 eV.Electronic energetic parameters like these are typical for insulator materials.However it was established that there are not only hopping mechanism of charge transpor...     

远场涡流能量流的似波特性研究

应用电磁场理论和有限元分析方法，系统地分析了远场涡流中能量流的变化规律，并重点讨论了似稳态激励和瞬态激励两种情况下的扩散能量流的似波特性。研究结果表明，能流分界线可以形象地表示能量在一个周期内的变化规律；能量变化与源的变化之间有一个时间滞后，呈现了似波特性。     

Luminous phenomena and earthquakes in southern Washington

Summary Luminous phenomena, mostly nocturnal lights, are associated with very small earthquakes in southern Washington state. The phenomena seem to be electrical in nature, related to earthquake lights, and tend to occur when the locus of earthquake activity moves across an active fault in an area of compressional stress.     

基于切削力的铣刀破损实时监测技术研究

介绍了铣削过程人破损监测系统,分析了刀具破损和特殊切削条件下切削力的波形特征,阐述了两者变化规律的不同,引入自发算法对刀具破损进行了识别,用实验方法确定了被损 坎值。     

求赋权连通图最优树的用边率

对赋权连通图求最优树已有三种方法，用边率可以衡量方法的计算量．本文分别导出三种方法的用边率，理论分析与实例计算所得结论是选边法为最简算法．