热分解作用

The electric field induced decomposition of ITO and electromigration of indium are responsible for the catastrophic failure, or thermal breakdown, of OLEDs. 5. Because of the importance of Si-based optoelectronics, We use p-type Si instead of ITO as the anode to fabricate OLEDs.

通过观察我们可以判定OLEDs器件的热击穿是由于其内部形成了严重的短路，而在高的正向驱动电压下器件严重短路的原因是器件内部本身存在的不均匀和ITO电极在高电场的作用下分解出的金属In沿着这些不均匀的位置在有机层电迁移扩散。

This system has good thermal stabi ity in ground state. When excited, it can undergo intra-ion-pair electron transfer, leading to the bleaching of the dye and the decomposition of the onium salt. The later results in the formation of initiating radical species.

在基态，这种体系具有良好的热稳定性，而在激发态时能发生离子对内光诱导电子转移反应，导致其发生漂白和碘鎓盐的分解反应，产生具有引发作用的自由基。

The results showed that expression plasmid pET22b-lysB was constructed successfully. Highly purified recombination protein was obtained 33.2 mg from 1 L LB culture medium. A screening for His-LysB activity on esterase and lipase substrates confirmed the lipolytic activity. With p-nitrophenyl butyrate as substrate, the thermal stability of the enzyme was poor when the temperature was above 30oC. The enzyme exhibited higher stability at pH 5.0–9.5. The optimum temperature and pH for the lipolytic activity of His-LysB were 23oC and 7.5 respectively. Under the optimum conditions, the specific activity of His-LysB was 1.3 U/mg. Zn2+, Cu2+, Mg2+, Mn2+and phenylmethane sulfonyl fruoride severely inhibited the lipolytic activity of His-LysB.

结果表明：成功构建了pET22b-lysB表达载体，并从1 L的LB培养物中获得了33.2 mg高纯度重组蛋白；His-LysB具有分解脂肪的能力，属于脂肪酶；生物化学特性分析表明：丁酸对硝基苯为水解底物，His-Lys热稳定性不佳，30℃以下比较稳定，随着温度的升高，稳定性逐渐降低；该蛋白具有较高的pH值适应性，pH 5.0~9.5范围内稳定性较高；在23℃和pH 7.5时酶活力最高，其比酶活为1.3 U/mg；金属离子Zn2+、Cu2+、Mg2+、Mn2+和苯甲基磺酰氟抑制剂对酶活具有强烈的抑制作用。

Aging mechanism of wood-plastic composite was: light and heat break down the long molecular chains of wood flour and plastic; the free radicals reacted with the oxygen, which generated carbonyl groups, hydroperoxides and so on; the free radicals also had cross linking reaction, which generated alkoxy; Water destroyed the interface of wood flour and plastic, hydrolyzed ester additives, extracted the small molecule additives and degradation products; Microorganism degraded cellulose, semicellulose, lignin and ester additives; degradation product from different component accelerated the aging, which could be exampled by the fact that HCl from degradation of PVC accelerated the hydrolyzation of cellulose and semicellulose.

木塑复合材料的老化机理为：光和热引发木塑复合材料中木质组分和塑料组分大分子链断裂，产生的自由基与氧气作用，发生链支化反应生成羰基、氢过氧化物等，发生交联反应生成烷氧基等；水分破坏木-塑界面、水解酯类添加剂、抽提小分子添加剂和降解产物；微生物分解纤维素、半纤维素、木素和酯类添加剂；木塑复合材料中各组分的降解产物相互促进老化，PVC降解产生的HCl溶于水，促进了纤维素和半纤维素的水解。

CL which can be detected during tensile testing of unaged polyami-de and UV-irradiated polypropylene specimens, has been found to be an effect of thermally unstable hydroperoxides decomposing due to stress-induced adiabatic heating, which after necking is localised to the travelling neck shoulders.

在对物理尼龙和紫外线照射过的聚丙烯样件的拉伸测试过程中，采用化合光对其进行检测，可以发现一种不稳定的热效应产生的氢分解。这是由于在受拉伸颈部的轴肩局部位置，因应力作用而产生的绝热加热。

CL which can be detected during tensile testing of unaged polyami-de and U-irradiated polypropylene specimens, has been found to be an effect of thermally unstable hydroperoxides decomposing due to stress-induced adiabatic heating, which after necking is localised to the traelling neck shoulders.

在对物理尼龙和紫外线照射过的聚丙烯样件的拉伸测试过程中，采用化合光对其进行检测，可以发现一种不稳定的热效应产生的氢分解。这是由于在受拉伸颈部的轴肩局部位置，因应力作用而产生的绝热加热。

The form of intumestant char layer could depart polymer base and burning part while prevent heat transfer. Obviously,the fire –retardant effect of IFR is also that it intermits heat transfer.

因此，其阻燃作用主要属于凝聚相机理；APP、MN等分解时产生的NH3、H2O等不燃性气体，这些气体在能被捕集之前逸出到材料表面的气相，稀释了可燃气体的浓度；膨胀碳层的形成，起到阻止热传递的壁障作用，把聚合物基质与燃烧区隔开。

The results show that the deposited boron from boric acid has catalytic-graphitization effect on carbon fibers through high temperature treatment, which enhances the graphitization property of carbon fibers and meliorates the surface state of carbon fibers.

结果表明：硼酸通过高温热处理过程所分解的硼对炭纤维起到了有效的催化石墨化作用，显著提高炭纤维的石墨化性能，改善炭纤维的表面状态，从而有效地促进CVI过程中炭纤维表面沉积较高织构热解炭。

Includes a variety of substances, such as plastic wrap, water-soluble plastic foil and open-weave fabric that has been chemically treated to disintegrate with the application of heat.

包括多种材料，如塑胶包装，水溶性塑胶箔和稀松组织织物，它们都经过相应的化学处理，并通过热作用进行分解。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。