Results 71 to 80 of about 5,318 (112)

《高压阀式避雷器》 第二章 阀式避雷器的非线性电阻 附视频

Dianci bileiqi, 1975
2—1 非线性电阻的一般概念非线性电阻是一种固体半导体制品,当施加的电压升高时,它的电阻实际上无时延地降低。非线性电阻分为两类。在称为压敏电阻的电阻中,电流密度为10-6～1安/厘米2数量级。这种电阻可以长期施加电压,负载主要受发热和散热限制。第二种非线性电阻主要是用于短时大负载的电阻。阀式避雷器和其它过电压保护装置中的电阻以及高压电器用大功率分路电阻都属于这一类。这类电阻能承受时间10-5～10-1秒的短时负载。其电流密度和电位梯度能分别达到10～2～10～3安/厘米2和2—4千伏/厘米 ...
doaj  

[Preparation and application of conductive fiber coated with liquid metal]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Liu C, Tang J, Li M, Zhang S, Zou Y, Lyu Y.   +5 more
europepmc   +1 more source

《高压阀式避雷器》 第二章 阀式避雷器的非线性电阻

Dianci bileiqi, 1975
2—1 非线性电阻的一般概念非线性电阻是一种固体半导体制品,当施加的电压升高时,它的电阻实际上无时延地降低。非线性电阻分为两类。在称为压敏电阻的电阻中,电流密度为10-6～1安/厘米2数量级。这种电阻可以长期施加电压,负载主要受发热和散热限制。第二种非线性电阻主要是用于短时大负载的电阻。阀式避雷器和其它过电压保护装置中的电阻以及高压电器用大功率分路电阻都属于这一类。这类电阻能承受时间10-5～10-1秒的短时负载。其电流密度和电位梯度能分别达到102～103安/厘米2和2—4千伏/厘米 ...
doaj  

[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

[Medical treatment standards for emergency trauma wounded (2025 edition)]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
National Health Commission Of The People's Republic Of China.
europepmc   +1 more source

[2024 EAU/ESPU paediatric urology guidelines: key updates on congenital lower urinary tract obstruction and clinical inter-pretation]. [PDF]

Zhejiang Da Xue Xue Bao Yi Xue Ban
Mei L, Zheng Z, Tao C, Chen G, Yan X.
europepmc   +1 more source

[Molecular imprinting strategies and advances targeting biomembranes]. [PDF]

Se Pu
Yuan XT, Wang L, Chen LX, Hu LH.
europepmc   +1 more source

[Research progress on elbow joint rehabilitation robots]. [PDF]

Zhejiang Da Xue Xue Bao Yi Xue Ban
Li M, Xu F, Wang D, Xu J.
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 Zhi
Yuan S, Deng C.
europepmc   +1 more source

[Development of a balloon sensor device for force-electrical coupling measurement of esophagus]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Ran P, Zhong Y, Lai Y, Liu L, Zhu Y, Zhu H.   +5 more
europepmc   +1 more source