Results 51 to 60 of about 1,001 (99)

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  

[<i>MUTYH-APEX1</i> Axis Promotes Hepatocellular Carcinoma Progression and Therapeutic Resistance by Regulating Cell Cycle Proteins]. [PDF]

Sichuan Da Xue Xue Bao Yi Xue Ban
Zhou Y, Zhang H, Zhu Y, Jiang P, Feng T, Wu Z, Chen J.   +6 more
europepmc   +1 more source

[Study on the electric field transmission characteristics of conducted-electrode tumor treating fields]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Liu K, Zhang J, Shi J, Fang H, Li X.
europepmc   +1 more source

[Determination of 17 bisphenol compounds in human urine by solid supported liquid-liquid extraction-ultra-high performance liquid chromatography-tandem mass spectrometry]. [PDF]

Se Pu
Jin Y, Zhang LG, Zhou JX, Ma JJ, Yuan LL, Xiao P, Wang GQ.   +6 more
europepmc   +1 more source

基于模态分析的GIS盆式绝缘子带电检测技术

Gaoya dianqi
GIS盆式绝缘子表面污秽和裂纹等缺陷会使得其表面的闪络电压降低，严重危害电力网络的正常运行，因此盆式绝缘子状况检测研究对于保障电网安全运行具有重要意义。基于模态分析法，文中研制了盆式绝缘子状态带电检测系统，对盆式绝缘子表面污秽、裂纹缺陷开展试验研究。结果表明盆式绝缘子污秽缺陷会使得其模态传递函数幅值发生变化，且盆式绝缘子模态特性对于污秽质量的变化敏感；裂纹缺陷会使得盆式绝缘子模态传递函数极值点发生后移；表面污秽与表面裂纹缺陷共同作用下，模态传递函数的高频段2 000~4 000 Hz内幅值变化更剧烈 ...
李璐, 彭琪, 苏征, 刘琛浩, 宋颜峰, 李军浩   +5 more
doaj  

[Impact of conditioning intensity on transplant outcomes following allogeneic hematopoietic stem cell transplantation in patients with myelodysplastic neoplasms: a multicenter retrospective cohort study]. [PDF]

Zhonghua Xue Ye Xue Za Zhi
Wang L, Zhang ZL, Zhang RX, Chen HR, Hu ML, Zhao YM, Shi W, Cao Y, Hu XX.   +8 more
europepmc   +1 more source

[Effects of cold atmosphere plasma treatment on the biological behavior of human gingival fibroblasts]. [PDF]

Beijing Da Xue Xue Bao Yi Xue Ban
Zheng M, Ma X, Chen H, Zhao H, Zhang Y, Tan J, Li H, Wang X.   +7 more
europepmc   +1 more source

[Determination of vitamin A and vitamin E in human tear by liquid chromatography-tandem mass spectrometry and analysis of their relationship with dry eye]. [PDF]

Se Pu
Luo BB, Jiao JR, Bai J, Liu XY.
europepmc   +1 more source

[Clinical effect of tibial transverse transport technique combined with continuous low negative pressure wound therapy in the treatment of Wagner grade Ⅲ to Ⅴ chronic diabetic foot ulcers]. [PDF]

Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi
Liao YD, Chen Y, Ma XK, Li YX, Gan TJ, Zhang H, Xie HQ.   +6 more
europepmc   +1 more source

[The guideline for the diagnosis and treatment of marginal zone lymphoma in China (2025)]. [PDF]

Zhonghua Xue Ye Xue Za Zhi
Hematological Oncology Committee of China Anti-Cancer Association, Lymphoid Disease Group, Chinese Society of Hematology, Chinese Medical Association, Lymphoma Expert Committee of Chinese Society of Clinical Oncology (CSCO), Chinese Workshop of Indolent Lymphomas.   +5 more
europepmc   +1 more source