Results 111 to 120 of about 4,082 (184)

500 kV输电线路劣化瓷绝缘子非线性发热特性的红外分析

open access: yesGaoya 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   +4 more
doaj  

[Network analysis of the relationship between perfectionism traits and mobile phone dependence among Chinese university students]. [PDF]

open access: yesZhong Nan Da Xue Xue Bao Yi Xue Ban
Liu Z   +7 more
europepmc   +1 more source

[Guideline for the diagnosis and treatment of chronic myeloid leukemia in China (2025)]. [PDF]

open access: yesZhonghua Xue Ye Xue Za Zhi
Chinese Society of Hematology   +1 more
europepmc   +1 more source

[Depressive disorders and olfactory dysfunction]. [PDF]

open access: yesZhong Nan Da Xue Xue Bao Yi Xue Ban
Tang Y, Zou L, Chen X, Yan C.
europepmc   +1 more source

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