Results 21 to 30 of about 1,026 (71)

快速真空开关合闸触头弹跳暂态过程研究

Gaoya dianqi
以电磁斥力驱动器作为操动机构的快速真空开关具有分闸速度快，分合闸时间短和分合闸时间分散性小的优势，目前已广泛应用于多种电力设备中。目前对于快速真空开关的分闸过程已有众多研究，但合闸过程的相关问题尚属空白。文中研究了快速真空开关合闸过程中触头弹跳问题。建立了多物理场耦合仿真模型，完整描述了快速真空开关的合闸过程。得到了快速真空开关的v1与Dmax的关系，其中v1为合闸过程中动静触头首次接触的瞬时速度，Dmax为动触头的最大弹跳距离。根据这一关系式，确定了合闸过程中无触头弹跳情况下的临界瞬时合闸速度vcri。
王协东, 陈萍
doaj  

[Preparation of magnetic bifunctional materials for exosome capture from serum and phosphopeptide enrichment]. [PDF]

Se Pu
Wang ZR, Zheng HJ, Jia Q.
europepmc   +1 more source

[Effect of 40 Hz pulsed magnetic field on mitochondrial dynamics and heart rate variability in dementia mice]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Zhang L, Geng D, Xu G, An H.
europepmc   +1 more source

[Experimental study on the treatment of postmenopausal osteoporosis with low-frequency pulsed electromagnetic fields]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
An Z, Wang L, Wu Y, Pang Y, Chen K, Gao Y.   +5 more
europepmc   +1 more source

[Efficacy and safety of super electroconvulsive therapy for treatment-resistant depression: a retrospective analysis of 292 cases]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao
An J, Chi Z, Zhao C, Li Y, Wang R, Hu Y.
europepmc   +1 more source

[Master manipulator of vascular intervention surgical robot based on haptic feedback]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Han G, Sun Z, Tang X.
europepmc   +1 more source

[A case of Harel-Yoon syndrome with seizures caused by an ATAD3A variant]. [PDF]

Zhongguo Dang Dai Er Ke Za Zhi
Yang Q, Pan Z, Chen C, Yin F, Peng J.
europepmc   +1 more source

[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

[The research progress on the improvement effect of repeated peripheral magnetic stimulation on upper limb and lower limb spasm after stroke]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Xu L, Ye L, Jia J, Chen S.
europepmc   +1 more source

[Synthesis of a temperature-responsive multimodal motion microrobot capable of precise navigation for targeted controllable drug release]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao
Zhao X, Liu M, Chen X, Huang J, Liu Y, Xu H.   +5 more
europepmc   +1 more source