Results 61 to 70 of about 9,231 (113)

基于大气环境质量及气象参数的绝缘子积污预测研究现状

Gaoya dianqi, 2017
及时全面掌握电网积污水平是预防电网污闪事故的基础,通过绝缘子积污预测获取污秽水平是适应电网智能化的发展方向,但目前绝缘子积污预测的理论基础不够完善,预测准确性欠缺。文中以上述问题为出发点,对绝缘子积污的外部影响因素进行了分析,对基于大气环境成分、基于气象参数预测绝缘子积污的方法及其准确度、适用性进行了总结。结果表明,大气环境成分、气象参数对绝缘子积污有显著影响;目前基于大气环境成分的绝缘子积污预测尚无法实现饱和污秽度的预测,基于气象参数的绝缘子积污预测尚不能满足工程要求;综合大气环境成分 ...
李特, 吴金木, 陈乔, 周象贤, 周国良, 蒋瑜宽   +5 more
doaj  

[Association analysis between genetic nurturing effects of <i>CTNNA</i> gene family and ischemic stroke]. [PDF]

Beijing Da Xue Xue Bao Yi Xue Ban
Wu J, Zheng L, Yu H, Wang H, Xie S, Chen Y, Li T, Wang M, Qin X, Wu T, Chen D, Wu Y, Hu Y.   +12 more
europepmc   +1 more source

[Research progress of infrapatellar fat pad derived mesenchymal stem cells in treatment of osteoarthritis]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Wang H, He H, Lu J, Wang Q.
europepmc   +1 more source

输电线路复合绝缘子污秽发热影响因素分析

Dianci bileiqi
污秽发热是现场复合绝缘子检修、处置关注的问题。为获取复合绝缘子污秽发热特征及随外界环境的变化规律，在人工气候室对等值盐密为0.08 mg/cm2和0.12 mg/cm2的人工污秽复合绝缘子开展不同环境湿度和风速下的工频耐压红外测试，此外考虑泄漏电流热效应和外部散热环境，建立复合绝缘子表面积污发热仿真计算模型，计算不同污层介电常数、污层电导率、环境风速下的绝缘子发热情况。结果表明，低湿度下积污复合绝缘子仅在高压端部存在发热，高湿度下绝缘子高压侧、中部、低压侧区域均可出现发热，温差随着湿度增加成加速上述趋势。
王少华, 李泽宇, 张永, 李特, 马勋, 何坚   +5 more
doaj   +2 more sources

[Revolution teaching practice in sample pretreatment supported by large-scale instrument： a case study of magnetic covalent organic framework enriching organic ultraviolet filters in seawater]. [PDF]

Se Pu
Li S, Zhu YL, Ren Z, Gao DD, Gu HL, Lao JL.   +5 more
europepmc   +1 more source

[Determination of 40 carbonyl compounds in ambient air by high performance liquid chromatography-triple quadrupole mass spectrometry]. [PDF]

Se Pu
Li GH, Deng S, Li QQ, Zhang CL, Liu YF, Jiang B, Yao Q, Wang H, Wang BG.   +8 more
europepmc   +1 more source

[Mechanobiology of peripheral nerve development: mechanical properties, sensing, and response]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Liu T, Lu L, Wang Y.
europepmc   +1 more source

[Research progress on cellular senescence and liver diseases]. [PDF]

Zhonghua Gan Zang Bing Za Zhi
Zhang LT, Hu JM, Wang JW, Li H, Qin YJ.
europepmc   +1 more source

[Research progress on the mechanism of mitochondrial dynamics in diabetic foot ulcers and its related intervention strategies]. [PDF]

Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi
Shan B, Guo ZA, Ma XP, Jing SS, Wu Y, Pan HB, Zeng ZY.   +6 more
europepmc   +1 more source

[Mechanism of actions and reflections of Masquelet induced membrane technique in diabetic wound]. [PDF]

Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi
Tao K, Cao T, Shao LC.
europepmc   +1 more source