Results 101 to 110 of about 39,483 (195)
Dianci bileiqi氧化锌避雷器对于保障电网主设备安全具有重要意义，然而随着设备规模的不断增大而运维资源增长相对缓慢，及时发现已劣化的避雷器面临挑战。为此文中研究了基于状态量优化的避雷器健康状态评估方法，为应对设备规模大幅增加条件下开展运维检修策略优化提供参考。首先分析了氧化锌避雷器的故障特征，发现通过泄漏电流或红外热成像能有效检出电阻片受潮或劣化缺陷；针对电阻片受潮和劣化等典型缺陷提出以巡视和带电检测为主开展状态评估的优化状态量；接着建立了基于优化状态量的避雷器健康状态评估模型，通过不同状态量分段扣分与单一扣分相结合 ...
杨帆 +5 more
doaj
[Lung Cancer with Pulmonary Embolism: Evidence-based Progress in Anticoagulation Assessment and Management]. [PDF]
Zhongguo Fei Ai Za ZhiMa Y, Liu K, Tu C, Xu T, Liu B.
europepmc +1 more source
[Research progress in the field of drug-induced liver injury in 2025]. [PDF]
Zhonghua Gan Zang Bing Za ZhiZhi Y, Dong YN, Lei XH, Mao YM.
europepmc +1 more source
Testing whether the survival distribution is increasing failure rate of specified age [PDF]
, 1994 Araki Takaharu, 荒木 孝治
core +1 more source
[Development and dissemination of precision medicine approaches in gastric cancer management]. [PDF]
Beijing Da Xue Xue Bao Yi Xue BanLi Z +14 more
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复合绝缘子芯棒材料在盐雾中微电流作用和湿热环境下的劣化特性研究
Dianci bileiqi复合绝缘子芯棒酥朽断裂事故频发，其原因大多与芯棒劣化有关，而芯棒承担着整个绝缘子的机械载荷，因此有必要研究芯棒劣化特性及机理。建立了盐雾环境下耐压试验平台以模拟湿气入侵环境，在不同电导率盐雾和不同电压下开展了芯棒耐压试验，并对比了一定时间内盐雾微电流蚀损老化和湿热水煮老化两种老化形式对芯棒材料玻璃纤维力学性能的影响。通过对玻璃纤维全新样品及老化样品采用现代材料分析手段检测发现，微电流作用下水分子对玻璃纤维的物理冲击引发水解反应是造成玻璃纤维力学性能下降的重要原因 ...
孟祥龙 +8 more
doaj
[Phase Ⅲ, multicenter, randomized, double-blinded, positive-controlled trial on the efficacy and safety of maribavir compared with valganciclovir in the treatment of post-transplant cytomegalovirus infection: Subgroup analysis of AURORA Trial in the Chinese population]. [PDF]
Zhonghua Xue Ye Xue Za ZhiXuan L +9 more
europepmc +1 more source