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应用范围扩大的户外用聚合物绝缘子的现状

Dianci bileiqi, 1990
叙述有关欧美聚合物绝缘子的现状及其优缺点,以及绝缘设计和试验方法等,同时介绍了各种聚合物绝缘子。最近在欧美喜欢用聚合物绝缘子代替瓷绝缘子,包括线路用、电器用和铁道接触网用聚合物绝缘子。据调查,在美国玻璃纤维加强塑料线路绝缘子已占市场20％左右 ...
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高光谱遥感检测复合绝缘子运行状态技术研究

Gaoya dianqi, 2014
挂网运行的复合绝缘子若出现劣化,电气绝缘性能降低,若不及时替换将危害线路的安全运行。目前,国内外尚缺乏成熟的绝缘子运行状态检测方法,笔者在研究国内外复合绝缘子检测方法的基础上,首次引入高光谱遥感技术检测复合绝缘子的运行状态。采用高光谱成像仪对不同运行状态的硅橡胶绝缘子伞套及绝缘子串进行影像采集,成功地构建了复合绝缘子样本光谱特征库,并直观地展示了不同运行状态复合绝缘子光谱曲线及其在特征空间中的聚类特性。继而,利用特征光谱库,采用概率判决函数和贝叶斯判别规则对目标绝缘子进行状态检测 ...
文志科, 孔晨华, 闵绚, 邵瑰玮, 胡霁, 付晶, 蔡焕青   +6 more
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[Inductance calculation method for transcranial magnetic stimulation figure-8 coils Accounting for spatial mutual inductance]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Fan Y, Wu N, Li J, Meng W, Wu Z, Wang P, Zhang C, Wu C, Huo X, Zhang G.   +9 more
europepmc   +1 more source

[ALK-positive histiocytosis in adults with undifferentiated uterine sarcoma: a case report]. [PDF]

Zhonghua Xue Ye Xue Za Zhi
Xu JQ, Lyu BB, Zhao WB, Lin XY.
europepmc   +1 more source

[Efficient dental panoramic radiographic diagnosis under resource constraints <i>via</i> edge quantization and multi-modal synergy]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao
Zhao T, Jiao Y, Ni M, Luo Y, Xia S, Xu Y, He Y.   +6 more
europepmc   +1 more source

[Diagnosis and Intraoperative Decision-making in Pulmonary Sclerosing Pneumocytoma with Atypical Imaging Findings: A Case Report and Review of the Literature]. [PDF]

Zhongguo Fei Ai Za Zhi
Xu X, Xiao H, Ye X.
europepmc   +1 more source

[Interpretable machine learning models for preoperative precision prediction of perineural invasion in cervical cancer to support treatment decision: a multicenter retrospective study]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao
Zhu M, Liu X, Zhao S, Zhang X, Liu C, Liu X, Qi H, Han T, Ma D.   +8 more
europepmc   +1 more source

[Establishment and application of a standardized surgical protocol for the treatment of laryngotracheal stenosis with T-tube insertion]. [PDF]

Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi
Geng P, Chen C, Zhang Q, He S, Liu Y, Sun Z, Meng J.   +6 more
europepmc   +1 more source

降雨环境下35 kV绝缘子串雷电冲击放电特性与影响规律研究

Dianci bileiqi
在极端强降雨条件下，输电线路、变电站及换流站中的绝缘子伞裙间距因密集的雨柱而被连接，这一现象会显著改变原有电场分布，造成电场畸变。瓷质绝缘子作为电力系统常见绝缘元件，在长期服役过程中，不仅需承受自身重量，还不断受到风力等外部载荷的作用，这些因素作用下，逐渐导致陶瓷内部绝缘性能的退化，进而形成零值绝缘子。为研究强降雨条件35 kV绝缘子串雷电冲击放电特性，针对输电线路复合绝缘子及U70BP/146D瓷绝缘子串不同零值情况开展雷电冲击放电特性测试。结果表明 ...
许军, 方超颖, 董冰冰, 乔雨, 郑钟楠, 程韵初, 林梓圻   +6 more
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[Effectiveness of arthroscopic grid-pattern dynamic rotator cuff reconstruction using autologous tendon graft for irreparable massive rotator cuff tears]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Huang K, Zhang X, Xie G, Wang H, Han K, Xu C, Zhao J, Huangfu X.   +7 more
europepmc   +1 more source