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500 kV输电线路劣化瓷绝缘子非线性发热特性的红外分析

Gaoya dianqi
高压输电线路绝缘子串中的劣化件会威胁电网安全。为了研究劣化瓷绝缘子的红外发热特性，设置了一系列实验，研究了劣化绝缘子的电阻、沿串位置和环境相对湿度对红外检测的影响。并对含有两片劣化绝缘子的绝缘子串进行了附加实验，以研究了正常绝缘子和低值绝缘子之间不同的发热现象。利用有限元分析仿真进一步分析了红外图像中钢帽的发热机理。实验和仿真结果表明：劣化绝缘子的温升与阻值呈非线性关系，当电阻为30 MΩ时温升最大；绝缘子串两端的劣化易被检测；相对湿度过高可能会导致误检；正常绝缘子的发热区域是钢帽的下部 ...
裴少通, 马子儒, 刘云鹏, 张凯元, 杨家骏   +4 more
doaj  

[Removal of a fishbone foreign body from the root of the tongue using a translingual ventral approach: case report]. [PDF]

Hua Xi Kou Qiang Yi Xue Za Zhi
Li C, Zhao S, Li Y, Han B, Zhang B.
europepmc   +1 more source

[Florid cemento-osseous dysplasia: A case report]. [PDF]

Beijing Da Xue Xue Bao Yi Xue Ban
Wang Y, Liang Y.
europepmc   +1 more source

[The experimental study of ¹⁸F-NaF micro PET/CT imaging in a mouse-model of acute gouty arthritis]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
You Z, Zhu H, Shi Y, Li P, Huang X, Zhang Z, Li S, You J.   +7 more
europepmc   +1 more source

[Advances in application of cell imprinting technology in biomedical field]. [PDF]

Se Pu
Zhao XM, Zhang ZY, Sun WJ, Qing GY.
europepmc   +1 more source

[Early effectiveness of total talar replacement with three-dimensional-printed talus prostheses in steroid-induced talar avascular necrosis]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Cao B, Yin S, Li Y, Wu Y, Gong H, Gan T, Li J, Ren Y, Yang H, Chen Y, Liu X, Zhang H.   +11 more
europepmc   +1 more source

[Rheumatoid arthritis complicated with necrotizing fasciitis: A case report]. [PDF]

Beijing Da Xue Xue Bao Yi Xue Ban
Lyu X, Yu X, Zhang W, Liu C, Lin H, Zeng S, Huang H, Wu Y.   +7 more
europepmc   +1 more source

[Efficacy analysis of electrochemical detection of leukocyte esterase based on glucosyl ester in diagnosis of periprosthetic joint infection after knee arthroplasty in rabbits]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Luo N, Chen Q, Zeng T, Zuo H, Niu D, Shen B.   +5 more
europepmc   +1 more source

[CT radiomics<b>-</b>driven lung cancer subtyping based on pretreatment imaging: A single<b>-</b>center retrospective cohort study]. [PDF]

Zhong Nan Da Xue Xue Bao Yi Xue Ban
Han F, Zhang J, Wang X, Wu F, Chen C, Yi X.   +5 more
europepmc   +1 more source

[Heterotopic replantation and delayed implant restoration following complete avulsion of maxillary central incisors: a case report]. [PDF]

Hua Xi Kou Qiang Yi Xue Za Zhi
Yang Z, Li Q, Pang Y.
europepmc   +1 more source