Dianci bileiqi, 2019 为实现劣化绝缘子快速、智能化检测,降低输电线路的事故隐患,本文基于电场分布测量法原理设计了一种操作简便、成本低廉、适用性强的绝缘子带电检测装置。通过ANSYS有限元软件仿真计算了检测装置自身、劣化绝缘子位置和缺陷类型对绝缘子串电场分布的影响,并利用"相邻作差法"进一步处理电场畸变数据。仿真结果显示,检测装置的存在不影响对绝缘子的电场分布趋势。最后现场试验表明,该检测设备能在绝缘子串上平滑轻巧地移动,对低（零）值瓷绝缘子及复合绝缘子芯棒导通缺陷均能有效识别,能提高输电线路劣化绝缘子的检测效率。
王力农 +5 more
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[A Case of Refractory Pulmonary Enteric Adenocarcinoma with EGFR Sensitive Mutation]. [PDF]
Zhongguo Fei Ai Za ZhiWang X +7 more
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一起1 000 kV特高压交流输电线路复合绝缘子断串原因分析
Dianci bileiqi伴随着输电网络规模的不断扩大，复合绝缘子在运数量也越来越多，时有发生的绝缘子断串事件严重影响电网的安全稳定运行。因此，本研究针对一起典型的1 000 kV特高压交流输电线路复合绝缘子断串事件，通过断串绝缘子的剖检、工频耐压红外、水扩散等试验对照同塔对照试样排查复合绝缘子可能出现断串故障的隐患源，剖检、红外测试表明该次断串类型属于芯棒酥朽断串，缺陷由芯棒内部向外部发展。最终确定复合绝缘子断串的原因为芯棒-护套界面粘接性能下降、护套厚度不足，水分侵入芯棒引发产生酥朽缺陷，酥朽缺陷逐步发展导致断串。
于姜赟 +5 more
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[Depressive disorders and olfactory dysfunction]. [PDF]
Zhong Nan Da Xue Xue Bao Yi Xue BanTang Y, Zou L, Chen X, Yan C.
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[Management and consideration of positive surgical margins in locally advanced oropharyngeal squamous cell carcinoma treated with oral robotic surgery]. [PDF]
Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za ZhiHu Y, Zhang X.
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[Multiple primary malignancies combined with SWI/SNF complex-deficient gastric cancer: a case report and literature review]. [PDF]
Nan Fang Yi Ke Da Xue Xue Bao, 2023 Lü C, Wu X, Xia Q.
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[The guideline for the diagnosis and treatment of marginal zone lymphoma in China (2025)]. [PDF]
Zhonghua Xue Ye Xue Za ZhiHematological Oncology Committee of China Anti-Cancer Association +5 more
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Dianci bileiqi, 1992 大多数高电压充气电器的内绝缘结构由环氧树脂混合物浇注而成。仔细研究了绝缘子最主要的特性、缺陷和探伤方法。结沦如下:①大批量生产的环氧树脂绝缘子中可能存在使绝缘子机电特性降低的各种不同的宏观缺陷,绝缘厚度内存在气体杂质和金属杂质,电介质表面有气孔和金属粒子等缺陷。②提出了综合的探伤方法。在提高电压试验的同时,运用光学和电学测量局部放电的方法。③为了保证绝缘子运行可靠性,必须在同时检测表面和内部局部放电水平的情况下,用较高的电压进行几十小时的试验 ...
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[Changes in hepatic phase Ⅱ detoxification enzymes and their mechanism in metabolic associated steatohepatitis (MASH) induced by MCD diet in mice]. [PDF]
Zhonghua Gan Zang Bing Za ZhiGao JQ +6 more
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Research progress and challenges of preimplantation genetic testing for polygenic diseases. [PDF]
Zhejiang Da Xue Xue Bao Yi Xue Ban, 2023 Wu X, Pan J, Zhu Y, Huang H.
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