Results 121 to 130 of about 2,431 (159)

基于磁环的海上风电场高频重燃过电压的抑制研究

open access: yesGaoya dianqi
随着“低碳环保”的发展,国家在节能减排和环境污染上愈发的重视,作为清洁能源之一的风电,成为国家政策大力支持的产业。为了准确模拟出海上风电场的高电压暂态特性及抑制措施,对海上风电场重燃过电压进行了建模仿真,在分析了海上风电场过电压的机理上,基于ATP-EMTP进行了真空断路器、变压器、高频磁环的建模,建立了海上风电系统并仿真了真空断路器的分闸重燃现象。提出了利用高频磁环对重燃过电压的抑制措施,分析了不同磁环材质、不同磁环长度、不同磁环内外径、不同磁环形状大小对重燃过电压的抑制效果 ...
方春恩   +4 more
doaj  

[Millimeter wave exposure induces apoptosis in human melanoma A375 cells in vitro]. [PDF]

open access: yesNan Fang Yi Ke Da Xue Xue Bao, 2019
Zhao R   +7 more
europepmc   +1 more source

[Thoughts and Prospects on Precision Control and Intelligent Positioning Robotic Systems Applied in Nasojejunal Feeding Tube Placement]. [PDF]

open access: yesSichuan Da Xue Xue Bao Yi Xue Ban
Qiu Y   +9 more
europepmc   +1 more source

[Spherical measurement-based analysis of gradient nonlinearity in magnetic resonance imaging]. [PDF]

open access: yesSheng Wu Yi Xue Gong Cheng Xue Za Zhi
Yang X   +7 more
europepmc   +1 more source

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