Gaoya dianqi, 2010 针对目前西安电网中变压器中性点接地方式存在的安全隐患,提出了330 kV自耦变压器和110 kV变压器都经过小电抗接地的优化方式。仿真计算表明,经过适当的小电抗接地后,330 kV自耦变110 kV侧母线上的单相短路电流明显减小,其他110 kV变压器中性点过电压显著减小,保证了中性点绝缘不受威胁和系统运行的安全性。
王育路 +4 more
doaj
[Master manipulator of vascular intervention surgical robot based on haptic feedback]. [PDF]
Sheng Wu Yi Xue Gong Cheng Xue Za ZhiHan G, Sun Z, Tang X.
europepmc +1 more source
Dianci bileiqi为了掌握地铁杂散电流及地表电位的形成原因，获得相关影响因素的影响规律，建立了考虑地铁牵引系统实际结构的杂散电流与地表电位计算模型，利用该模型分析了轨-地过渡电阻、排流网、结构钢筋形式对地铁牵引网杂散电流与地表电位的影响。研究表明：尽管轨道与大地之间由绝缘件隔离，但由于管道较长且存在过渡电阻，轨-地系统的接地电阻的量级约0.1 Ω~1.0 Ω，存在较大杂散电流侵入大地的可能；杂散电流及地表电位随轨-地过渡电阻增大而减小，但轨-地过渡电阻大于15 Ω·km时，进一步增加轨-地过渡电阻对限制杂散电流的效果降低，
吴泳聪, 蔡汉生, 胡上茂, 张义
doaj
[Determination of eight ultraviolet absorbers in surface water and wastewater by ultra performance liquid chromatography-triple quadrupole mass spectrometry]. [PDF]
Se PuSun HJ +5 more
europepmc +1 more source
[Research on tissue regeneration and engineered scaffold materials in prevention and treatment of lymphedema]. [PDF]
Zhongguo Xiu Fu Chong Jian Wai Ke Za ZhiYuan S, Deng C.
europepmc +1 more source
[Development and electrophysiological validation of a temporal interference transcranial magnetic stimulation system for mice]. [PDF]
Sheng Wu Yi Xue Gong Cheng Xue Za ZhiCui C, Wang T, Zhang Y, Zheng W, Xu G.
europepmc +1 more source
[Impact of surgeon's dominant hand-side consistency with surgical approach on operational efficiency of unilateral biportal endoscopic lumbar discectomy: a prospective cohort study]. [PDF]
Zhongguo Xiu Fu Chong Jian Wai Ke Za ZhiLi W, Gao M, Zhang L, Yu Q, Chen X.
europepmc +1 more source
[Development of a surface electromyography index system for orofacial muscles and validation of a discriminant model in unilateral molar occlusal interference]. [PDF]
Beijing Da Xue Xue Bao Yi Xue BanLi W +11 more
europepmc +1 more source
[Preparation of a novel polyhydroxy silica stationary phase and application in the separation of alginate oligosaccharides]. [PDF]
Se PuJiao RW +9 more
europepmc +1 more source