Results 51 to 60 of about 2,540 (100)

[How I treat vasovagal syncope in children]. [PDF]

open access: yesZhongguo Dang Dai Er Ke Za Zhi
Zou RM, Wang C.
europepmc   +1 more source

[Extracellular matrix materials and tissue regeneration and repair]. [PDF]

open access: yesZhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Zhao L, Xie H.
europepmc   +1 more source

采用室温硫化硅橡胶伞套及伞裙涂层的绝缘子运行经验

open access: yesDianci bileiqi, 1992
标题所述的长棒形复合绝缘子在自然污秽现场,高压直流和交流带电运行了许多年.与其它复合材料(如乙丙烯橡胶)相比,其老化性能更优越,憎水性更好.这种提高,可能是由于在伞套表面形成小分子层,改进了表面憎水性,从而保持其表面以免进一步老化.在瓷套表面涂一层室温硫化硅橡胶也能起类似的作用.涂层虽然会增加附盐密度,但能减小泄漏电流,在同样污秽条件卜提高耐压水平.
doaj  

[Medical treatment standards for emergency trauma wounded (2025 edition)]. [PDF]

open access: yesZhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
National Health Commission Of The People's Republic Of China.
europepmc   +1 more source

[Effects of cold atmosphere plasma treatment on the biological behavior of human gingival fibroblasts]. [PDF]

open access: yesBeijing Da Xue Xue Bao Yi Xue Ban
Zheng M   +7 more
europepmc   +1 more source

绝缘子ZnS:Cu/BaTiO3复合涂层的闪络强度和缺陷自检测特性研究

open access: yesGaoya dianqi
绝缘子是电力设备的重要组成部分,但表面绝缘缺陷极易导致突发性沿面闪络事故。为了提高对表面绝缘缺陷的检测能力和绝缘子的沿面闪络强度,文中制备了ZnS:Cu/BaTiO3掺杂的绝缘缺陷自检测复合涂层,将ZnS:Cu电致发光材料引入绝缘系统实现缺陷自检测功能,通过引入高介电常数BaTiO3填料均匀表面电场、提高绝缘子沿面闪络强度。测试了涂层样品的交/直流闪络电压,通过对表面金属微粒缺陷在交流电压下的发光分布和局部放电的观测,考察了涂层对表面缺陷的检测能力。结果表明 ...
刘慕然
doaj  

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