Results 51 to 60 of about 1,142 (102)

中性点经消弧线圈接地系统金属氧化物避雷器对电弧接地过电压的限制

Dianci bileiqi, 1990
本文主要讨论了中性点经消弧线圈接地系统用金属氧化物避雷器限制电弧接地过电压的一些特点。计算及研究发现,消弧线圈及其入口电容的存在,给电弧接地过电压带来多方面的影响,且为了得到更接近实际的结果,计算这类过电压时宜分相进行计算。
王秉钧, 陈丽安
doaj  

[Visual analysis of the current research status and hotspots of electric burns at home and abroad]. [PDF]

Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi, 2023
Chen HX, Huang YW, Liu WJ, Liu B, Chen GB, Zhang DD, Chen PY, Lai W.   +7 more
europepmc   +1 more source

液态金属限流器中电弧放电特性实验研究

Gaoya dianqi, 2016
电弧放电行为是影响磁收缩型液态金属限流器限流特性的关键因素之一。为了研究其电弧放电特性,设计了带有透明观察窗的单隔板实验装置,采用LC振荡回路模拟短路电流,进行了不同通孔材料下电弧行为及其演变特性的实验研究。结果表明:液态金属电弧形态发展过程可分为起弧、电弧拉伸、弧区收缩及熄弧4个阶段。另外,通孔材料侵蚀所产生的强大气压会显著影响电弧行为及限流特性,一旦腔体内部气压过大,在燃弧后期易出现电弧在电流过零前熄灭的现象,不利于限流器对短路电流的限制。相较于石英玻璃,有机玻璃和GPO ...
孙毅卫, 李珂, 孙振权, 杨倬, 何海龙, 吴翊, 纽春萍   +6 more
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[Comparison of the efficacy of sigmoid sinus constriction plus cartilage reconstruction and sigmoid sinus return surgery in sigmoid sinus-related pulsatile tinnitus]. [PDF]

Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi
Cao W, Wu Z, Zhao Y, Tong B, Yao K.
europepmc   +1 more source

[Management of accidental tooth root displacement into the mandibular canal during tooth extraction]. [PDF]

Hua Xi Kou Qiang Yi Xue Za Zhi
Su L, Zhao J.
europepmc   +1 more source

[Research progress on paper-based microfluidic chips in pathogen detection]. [PDF]

Se Pu
Liu XT, Shi J, Shi M.
europepmc   +1 more source

[Effectiveness of posterior single-level osteotomy with 360° release and correction in treatment of osteoporotic vertebral compression fractures with moderate to severe kyphosis]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Qing P, Xu H, Hu Y, Xie B, Wang T, Zhang L.   +5 more
europepmc   +1 more source

[Tympanic membrane repair using improved endoscopic ear canal flap dissection method]. [PDF]

Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi
Sun H, Song R, Yu Z.
europepmc   +1 more source

[Design and research of a pneumatic soft intestine robot imitating the inchworm]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
He Y, Sun Z, Yuan J, Wei C, Han G, Chu X.   +5 more
europepmc   +1 more source

[Comparative study on accuracy of three imaging methods in diagnosis of subacromial impingement syndrome]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Zi L, Jin H, Zhu J, Zhang G, Tong Y, Chen S, Shao W, Tang X.   +7 more
europepmc   +1 more source