Results 71 to 80 of about 2,359 (120)

[Effect of porous surface structure on fatigue strength of 3D printed zirconia]. [PDF]

open access: yesBeijing Da Xue Xue Bao Yi Xue Ban
Zhao J   +6 more
europepmc   +1 more source

极端天气下避雷器底座断裂故障处理与性能试验分析

open access: yesDianci bileiqi
介绍了极端天气下某变电站多个避雷器底座断裂缺陷的发现和处理过程,检查到断裂痕迹均为新断面且个别内壁有裂纹。根据气象信息和运行记录,初步判断避雷器底座断裂的直接原因是瞬时大风。将避雷器底座送检,进行了性能试验,包括绝缘子孔隙性试验、弯曲负荷耐受试验和弯曲负荷破坏试验等。通过机械性能试验验证了故障原因的初判。文末总结了缺陷处理经验,提出了应对极端天气下突发情况的对策和措施。
刘建月   +4 more
doaj  

[Case of concurrent second branchial cleft cyst and diffuse large B-cell lymphoma]. [PDF]

open access: yesHua Xi Kou Qiang Yi Xue Za Zhi
Liu X   +5 more
europepmc   +1 more source

[Aesthetic goals of hypospadias repair]. [PDF]

open access: yesZhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Tang Y.
europepmc   +1 more source

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