离子感烟探测器电路分析

离子感烟探测器主要是以电离烟雾检测器件MC14467为核心，设计的一种理想的室内烟雾感应探测器件，他体积小，安装简便快捷，经久可靠，基本电路可分为五个部分即：探测器工作电源；探测器接口电路；探测器烟雾检测电路；探测器报警电路；探测器报警指示灯控制电路．     

镧系收缩及其所产生的影响

分析了镧系收缩的原因、结果.并对镧系收缩所产生的影响进行了全面系统的总结.     

Ionic Liquids Derived New Media for from the Chiral Pool： Fine Chemistry

Ionic liquids （Ils） are low melting point salts, which are characterized by properties such as high ability to dissolve organic, organometallic and even inorganic compounds, absence of flammability, lack of measurable vapour pressure and high thermal stability. Due to these peculiar properties, they have recently attracted considerable attention as greener alternatives to volatile organic solvents. A few chiral ionic liquids, which could provide a renewal in the field of chiral solvents, have also been reported recently. Herein, we will present the synthesis of a new family of ionic liquids based on a thiazolinium skeleton. Preliminary results on the use of these chiral ionic liquids in the field of chiral recognition and organic synthesis will also be reported.     

Electrochemical Study of Conductive Gel Polymer

Conventional ion-conducting polymer consists of electrolyte salt and polymer matrix, so-called salt-inpolymer. It possesses lower conductivity because the migration of ions depends on the motion of polymer segmental. To increase the ionic conductivity, a kind of gel polymer film （GPF） was prepared by in situ polymerization of methyl methacrylate （MMA） monomer in room-temperature ionic liquid （RTIL）, 1-butyl-3- methylimidazolium hexafluorophosphate （BMIPF6）. Due to immeasurably low vapor pressure, high ionic conductivity, and greater thermal and electrochemical stability, BMIPF6 is suitable electrolyte salts for ion-conducting polymer.     

新型聚季铵盐固体电解质

具有星形结构的聚２－甲基丙烯酰氧乙基三甲基氯化铵与２－甲基吡啶季铵盐和无水三氧化铝形成的熔盐进行复合，得到室温离子电导率高达１０＾－１Ｓ．ｍ＾－１的新型固体电解质，它具有优异的低温导电性能，本文探讨了高分子与熔盐复合体系的导电机理，性能及影响因素，并用＾１３ＣＮＭＲ谱对接枝聚合物进行了表征。     

氟核糖碘胞苷的合成新方法研究

在微波辅助下,以环胞苷为原料,以较高产率合成了具有重要生理活性的2'-脱氧-2'-氟-5-碘胞苷,反应时间短,条件温和,操作简单.所有的中间产物和目标产物均经1H NMR和13C NMR确证.     

新型三氮唑吡啶盐负载的脯氨酸手性离子液体的合成和表征

以脯氨酸和吡啶为起始原料,经多步中间体合成了新型三氮唑吡啶盐负载的脯氨酸手性离子液体,并对各中间体与目标化合物的结构进行了核磁共振、元素分析、高分辨质谱和熔点测定的表征.实验结果表明,各中间体及最终产物的产率为71%~88%.     

Hyperbranched Polymer-Based Electrolyte for Lithium Polymer Batteries

Solid polymer electrolytes have attracted much attention as electrolyte materials for all solid-state rechargeable lithium batteries, and poly （ethylene oxide） （PEO）-based polymer electrolytes axe among the most intensively studied systems Hyperbranched polymers have unique properties such as completely amorphous, highly soluble in common organic solvent and processible because of the highly branched nature.     

一口钟液保护实验性心肌缺血及耐缺氧作用的研究

目的探讨一口钟液对实验性心肌缺血的保护作用.方法采用小鼠常压耐缺氧试验和垂体后叶素诱发大鼠急性心肌缺血性试验.结果一口钟液能明显提高小鼠耐缺氧能力,能预防垂体后叶素诱发大鼠急性心肌缺血性心电图的变化.结论一口钟液对实验性心肌缺血有明显的保护作用.     

采用离子电流法与机体振动法检测爆震的比较

在试验中,采用离子电流法和机体振动法同时检测发动机的爆震,采用双通道示波器同时记录离子电流法和机体振动法检测到的信号,并通过波形对比和快速傅里叶变换对信号进行分析和比较。结果表明：2种方法均可以准确实现爆震测量;相对于机体振动法而言,离子电流法具有安装方便、信噪比高、信号处理简单、测量准确、成本低廉等优点,是一种具有应用潜力的新技术。