Results 51 to 60 of about 269 (102)

保护并补电容器用三星与四星接线避雷器运行特性分析

Dianci bileiqi, 2004
依据典型的配电网接线形式,利用国际上通用的电磁暂态计算程序（EMTP）,对保护电容器用无间隙金属氧化物避雷器在两种接线方式下的保护特性和动作负载特性进行了分析、计算。结果表明:在各种运行操作中,避雷器采用三星和四星接线,对电感相-地、相-相、电容相-地、相-相及电容器中性点出现的最大过电压值限制效果差别很大,MOA所吸收的过电压能量也不相同。避雷器的保护效果依据上、下单元参数搭配的不同及距被保护设备距离的不同而不同。
郭洁, 施围, 杜斌
doaj  

[Artificial intelligence in wearable electrocardiogram monitoring]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi, 2023
Wang X, Li Q, Ma C, Zhang S, Lin Y, Li J, Liu C.   +6 more
europepmc   +1 more source

取消750 kV断路器合闸电阻的可行性研究

Gaoya dianqi, 2010
取消750 kV线路断路器合闸电阻可节省费用,提高断路器运行可靠性。笔者以即将建设的兰州东-银川东750 kV输电线路工程为背景,结合国外对取消合闸电阻的研究,利用电磁暂态计算程序（ATP/EMTP）计算装设1组避雷器和断路器合闸电阻时,线路三相合空线、单相自动重合闸统计操作过电压水平。计算表明,在首末端装设1组避雷器时,三相合空线、单相自动重合闸统计操作过电压最大值分别为2.38 p.u.和2.57 p.u.,在线路线路长度较短时,两端装设避雷器的方法可以将上述两种统计操作过电压抑制到1.80 p.u.
刘渝根, 刘敏, 苏玉萍
doaj  

[Research progress on combined transcranial electromagnetic stimulation in clinical application in brain diseases]. [PDF]

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

[A novel method for electroencephalography background analysis in neonates with hypoxic-ischemic encephalopathy]. [PDF]

Zhongguo Dang Dai Er Ke Za Zhi, 2023
Fang XY, Tian YL, Chen SY, Shi Q, Zheng D, Wang YJ, Mao J.   +6 more
europepmc   +1 more source

[A high temporal resolution dynamic T₂*W imaging study based on step oxygen stimulation of rat kidneys]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao
Sun S, Tao Q, Zhao K, Hu Q, Feng Y.
europepmc   +1 more source

[State-of-the-art in peripheral nerve injury diagnosis and therapy]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Sun J, Chen L.
europepmc   +1 more source

[Imaging Diagnosis of Ischemic Stroke Through Multiparametric Magnetic Resonance Angiography Enhanced by NaGdF₄ Nanoparticles]. [PDF]

Sichuan Da Xue Xue Bao Yi Xue Ban
Wu J, Ma Y, Yue S, Zhang X, Li W, Zhang N.   +5 more
europepmc   +1 more source

[Expert Consensus on the Clinical Practice of Child Life Services]. [PDF]

Sichuan Da Xue Xue Bao Yi Xue Ban
Nursing Group Of Chinese Pediatric Society Chinese Medical Association, Nursing Branch China Maternal And Child Health A.   +1 more
europepmc   +1 more source

[Research progress in the application of molecular imprinting technology in catalysis]. [PDF]

Se Pu
Ye WM, He DC, Cui XJ, Ma HW, Qian B, Shi F.   +5 more
europepmc   +1 more source