Results 51 to 60 of about 560 (78)
Gaoya dianqi, 2004 通过对真空灭弧室击穿电压的测量,拟合出了真空灭弧室在小间隙下的击穿电压与间隙的关系式,结合对真空灭弧室电场强度的计算,得出了真空灭弧室的动、静触头在不同间隙下的击穿场强。将拟合到小间隙下的击穿电压与间隙的关系式应用到真空断路器关合时的预击穿特性,根据断路器的关合动特性,得到了断口间耐受电压随时间的变化规律,由此得出断路器实现同步关合的速度低限,以及在什么相位进行关合时暂态分量最小。
张敬菽 +5 more
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[Research advances in the effect of bioactive substances in breast milk on the growth and development of infants]. [PDF]
Zhongguo Dang Dai Er Ke Za Zhi, 2020 Zhang M, Li WX, Tang J.
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Gaoya dianqi, 1993 【问】为什么调整真空断路器的触头行程时不允许超过规定值? 【答】真空灭弧室的机械寿命主要决定于波纹管的寿命。波纹管是用液压或焊接成形的零件。触头行程的增大,波纹管的寿命会迅速下降。如果触头行程超出规定值就可能大大缩短真空灭弧室的机械寿命。 【问】真空灭弧室的真空度为什么规定不得低于1.3×10-2Pa?使用中如何检验灭弧室的真空度?
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[He<b>'</b>s Yangchao recipe ameliorates premature ovarian insuf-ficiency by remodeling intestinal microbiota to promote granulosa cell glycolysis]. [PDF]
Zhejiang Da Xue Xue Bao Yi Xue BanLin F +6 more
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[Polydimethylsiloxane microfluidic aptasensor： opening a new era of biomarker point-of-care testing]. [PDF]
Se PuYang Y +5 more
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Gaoya dianqi, 1986 苏联对真空灭弧室和真空断路器进行着积极的研究、设计和试验工作。非常重视最佳的触头材料的研究,触头形状的研究和真空灭弧室制造工艺的完善。 真空灭弧室的研制工作主要在全苏电工研究院进行 ...
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[Research progress on paper-based microfluidic chips in pathogen detection]. [PDF]
Se PuLiu XT, Shi J, Shi M.
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[Evaluation of Gradient-Variant Quantum Dot Fluorescence Technology for Rapid Detection of <i>Brucella</i>]. [PDF]
Sichuan Da Xue Xue Bao Yi Xue BanLi J +9 more
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[Effects of copper content on the antibacterial performance and corrosion resistance of CoCrMoCu alloy]. [PDF]
Hua Xi Kou Qiang Yi Xue Za Zhi, 2018 Yin Z, Ren YB, Zhan DS.
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