硅橡胶复合绝缘子由于具有憎水性和憎水迁移性被广泛应用于高压输电线路中。在雨、雾、露水等恶劣条件下,由水滴造成的复合绝缘子表面放电会加速表面材料的老化、耐污闪能力的降低。已知硅橡胶表面的静态水滴会使绝缘表面的闪络电压显著下降,而水滴从空中坠落撞击硅橡胶表面的动态闪络过程尚未可知。文中通过滴水闪络试验观察了水滴撞击硅橡胶表面的动态闪络过程,分析了水滴撞击硅橡胶表面的动态闪络特性。研究结果表明,硅橡胶表面的最小闪络电压发生在水滴扩散面积达到最大值的时刻,此刻水滴所产生的闪络电压降接近静态闪络电压降的1.8倍 ...
李宗 +4 more
doaj
电容-压敏双功能材料(SrTiO3系、TiO2系、WO3系、CaCu3Ti4O12系)因各自的优异性能,在科学研究和实际应用中先后成为研究的热点。笔者回顾电容-压敏双功能材料的发展历史,详细介绍了目前国内外研究最多的电容-压敏双功能材料的结构特征和研究进展,并讨论了今后的研究方向:基础理论的研究;对电容-压敏陶瓷进行复合掺杂,改善其综合性能;超低压、双功能方向研究。
焦雷, 姜斌, 柏松, 徐东
doaj
[Rapid determination of lubabegron residues in animal-derived foods by ultra performance liquid chromatography- tandem mass spectrometry]. [PDF]
Yang C +5 more
europepmc +1 more source
为避免覆冰引起线路跳闸事故,且在融冰时不影响线路运行,论文研发了特高压线路地线和光纤复合架空地线(OPGW)的带电融冰系统,包含融冰电源、融冰装置、过电压保护系统、OPGW与地线回路。开展了OPGW/地线融冰参数校核、融冰装置参数校核,换流变压器、平波电抗器、桥臂过电压保护器选型,融冰线路绝缘化改造和绝缘配合设计,研发了特高压线路OPGW带电融冰系统。现场实测表明,融冰回路双端开路时,OPGW/地线感应电压可达13.7 kV,融冰回路单端接地时,感应电压降低至0.6 kV。计算表明 ...
张璐 +8 more
doaj
[Clinical efficacy of free anterolateral thigh tissue flap transplantation with a single-vein dual-drainage system at recipient site in repairing scalp high-voltage electrical burn wounds]. [PDF]
Nie GC +9 more
europepmc +1 more source
[How I treat vasovagal syncope in children]. [PDF]
Zou RM, Wang C.
europepmc +1 more source
[Determination of eight ultraviolet absorbers in surface water and wastewater by ultra performance liquid chromatography-triple quadrupole mass spectrometry]. [PDF]
Sun HJ +5 more
europepmc +1 more source
[Research progress on the application of ultrasound technology in the diagnosis and treatment of lymphedema]. [PDF]
Tang ZY, Liu R, Deng CL.
europepmc +1 more source
[Rehabilitation guidelines and specifications for traumatic spinal cord injury (2025 edition)]. [PDF]
Professional Committee Of Spine And Spinal Cord Injury Rehabilitation China Association Of Rehabilitation Of Disabled Persons +3 more
europepmc +1 more source
[Perioperative management of a patient with Kennedy disease undergoing knee replacement: A case report]. [PDF]
Bai P, Zhang H, Wang J, Zhu H, Zeng H.
europepmc +1 more source

