Moreover, the mechanism of transition of NTC/PTC effect was also discussed based on the experimental results.
基于试验结果，对NTC/PTC效应的转变机理进行了初步探讨。
Some influences of organic crystal on the resistivity of composites at room temperature and PTC effect of the composites were investigated in detail.
讨论了低分子量有机结晶物对复合材料室温电阻率及PTC效应的影响。
It was proposed that the reducing agent of electroless plating solution could have some reducing reaction to the grain boundary of PTC ceramics and thus had influence on PTC effect.
提出了化学镀镍溶液中的还原剂对PT C陶瓷的晶界产生还原从而影响PTC效应的观点。
These theoretical results are consistent with the experimental results. They may provide a theoretical basis for designing and measuring the voltage effect of PTC ceramics.
这些结果与已有实验结果相符，它们为PT C陶瓷电压效应的设计与测量提供了理论基础。
This paper briefs the working principle of the PTC starter used in refrigeration compressors and analys the factors of effect of the constructual elements on the devices.
简述了制冷压缩机用PTC起动器的工作原理，对PTC起动器中结构元件对起动器的影响因素作了初步分析。
The effect of the type and contents of CB and coupling agents on the performances of the polymer based PTC conductive composite was investigated, and the mechanism of coupling graft was also analyzed.
考察了炭黑及偶联剂种类、用量对高分子PTC导电材料性能的影响，并探讨了偶联接技机理，从理论上对改性效果进行了分析。
The results showed the use of DCP could improve the PTC stability and PTC transition temperature of the compound, the effect being most obvious when the DCP content was 1% by mass percent.
结果表明，过氧化物交联剂（DCP）可提高体系的PTC性能稳定性和PTC的转变温度，当用量为1％质量分数时，影响最为明显。
PAS added to PE can make the composites has the property of effect of PTC, but the intensity of PTC of composites varies with the concentration of PAS.
聚并苯添加到聚乙烯中可以得到PTC效应，不同聚并苯浓度的复合物得到的PTC强度并不相同。
The effect of variety and quantity of the metals and their compounds on PTC intensity of composites and the electric conduction mechanism are discussed in detail.
评述了用金属系分散体作导电材料填充聚合物形成聚合物基ptc复合材料时所用金属系物质的种类、用量等对复合材料PTC强度的影响及其导电机理。
The results of experiment show that the resistivity of the composites changes along with the temperature in a behavior of positiver temperature coefficient (PTC) effect.
实验指出，其电阻率随温度的变化呈不同强度的正温度系数（PTC）效应。
This effect can be reached by connecting the PTC Thermistor in series in starting assistant loop and cutting off the assistant loop when PTCR enters the state of high resistance.
将PTC热敏电阻串联在启动辅助线圈， 启动后PTC热敏电阻进入高阻态切断辅助线圈，正好可以达到这种效果。
The laser power density and the temperature of post heat processing have great effect on the sheet resistivity and TCR of PTC thermistor, and there exist optimum values for these parameters.
激光功率密度和后续热处理温度对PT C热敏电阻方阻和电阻温度系数影响较大，并都存在一个最佳值。
The effect of heat dissipation on response time of fuse was also investigated. The dependence of property of fuse on the stability of PTC material was discussed.
并就散热环境对动作时间的影响进行了研究，探讨了PT C材料稳定性对所制备保险丝性能的影响。
Objective To compare the curative effect of ERCP and PTC in the treatment of biliary complications after liver transplantation.
目的比较ERCP和PTC介入治疗肝移植术后胆道并发症的作用和疗效。
Objective To compare the curative effect of ERCP and PTC in the treatment of biliary complications after liver transplantation.
目的比较ERCP和PTC介入治疗肝移植术后胆道并发症的作用和疗效。
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