Results 51 to 60 of about 2,454 (104)

FS₄—10千伏避雷器采用非均匀放电间隙提高湿工放电压的理论分析

Dianci bileiqi, 1978
为使FS4—10千伏避雷器的干湿工频放电电压符合标准规定,本文通过理论分析提出采用非均匀放电问隙来提高湿工放电压。
张雨时
doaj  

雷击下谐振阻尼型CVT谐振过电压仿真分析

Dianci bileiqi
电容式电压互感器（CVT）作为重要的一次在线监测设备，在超特高压电力系统中得到了广泛的应用。通过CVT的监测过电压波形，可为系统的故障定位和排查提供重要依据。然而，由于CVT的设计原则主要面向工频电压测量，在测量宽频带的雷电过电压时，内部动态元件及非线性元件导致测量波形的畸变，给故障分析带来了巨大的挑战。本文以某500 kV交流线路发生的非常规过电压录波为典型案例，根据实际参数开展了雷击形式推断分析，研究了在雷电过电压下CVT本身录波产生的畸变以及其自身产生的铁磁谐振过程 ...
郭桐玮, 梁涛, 王正玺, 吴晓晖, 曾宏, 崔涛, 郭洁, 谢彦召   +7 more
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8/20脉冲对ZnO压敏电阻器工频耐受性能的影响

Dianci bileiqi, 2006
通过试验,分析了8/20脉冲次数及电流峰值对ZnO压敏电阻工频耐受性能的影响。在脉冲次数及电流峰值不同的情况下,电阻体内部发生结构性变化,导致其工频耐受性能发生变化。当脉冲电流峰值未超过某一临界值时,工频耐受时间随着冲击次数的增加而延长,超过此临界值时,工频耐受时间随着冲击次数的增加而缩短;在8/20脉冲次数一定的条件下,工频耐受时间也随电流峰值的递增呈现先延长后缩短的趋势。
韩伟, 王建文, 孟梅, 何欣
doaj  

真空灭弧室内部气体压力的在线诊断系统

Gaoya dianqi, 2004
考虑到工频电场变化和电晕导致的高频电场变化两种情况,对运行中真空灭弧室的内部气体压力变化进行了在线诊断。各探测点与主机之间用光纤网络连接,巡回检测。采用高速数值采集和软件数字信号处理以提高准确度。电场信号采集部分和信号传输部分采用电气隔离,可耐受系统工频电压和过电压。
李卫国, 邓本再, 罗日成, 苏盛
doaj  

[Development and electrophysiological validation of a temporal interference transcranial magnetic stimulation system for mice]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Cui C, Wang T, Zhang Y, Zheng W, Xu G.
europepmc   +1 more source

[Rehabilitation guidelines and specifications for traumatic spinal cord injury (2025 edition)]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Professional Committee Of Spine And Spinal Cord Injury Rehabilitation China Association Of Rehabilitation Of Disabled Persons, Professional Committee Of Spine Chinese Association Of Rehabilitation Medicine, The Second Medical-Rehabilitation Integration Working Committee Chinese Association Of Rehabilitation Medicine, Spine And Spinal Cord Injury Repair Study Group The Third Professional Committee Of Neurorestoratology Chinese Medical Doctor Association.   +3 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

[Closed-loop spinal neural interface combined with rehabilitation training for incomplete spinal cord injury: a case report]. [PDF]

Zhejiang Da Xue Xue Bao Yi Xue Ban
Feng C, Zhu J, Zhang J, Xu K.
europepmc   +1 more source

[A time-frequency transform and Riemannian manifold-based domain adaptation method for motor imagery in brain source space]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Qi Q, Li M.
europepmc   +1 more source

[Construction and practice of the "Construction Supports Competitions-Competitions Nurture Teaching-Teaching Promotes Learning" closed-loop innovative teaching mode： a case study of micro-plasma emission spectrometer setup and trace element analysis experiment]. [PDF]

Se Pu
Xue WY, Ke D, Zhang X, Zhou XD, Yang RN, Chao QC, Chen ML, Meng H, Yang T.   +8 more
europepmc   +1 more source