Results 101 to 110 of about 11,057 (156)

弹簧机构分闸锁扣系统对高压断路器分闸时间影响研究

Gaoya dianqi
高压断路器是电力系统中重要的保护和控制设备。高压断路器可以采用弹簧机构来执行分闸动作，断路器分闸时间是指处于合闸位置的断路器，从弹簧机构分闸脱扣器带电时刻到所有各极弧触头分离时刻的时间间隔。弹簧机构分闸脱扣器动作时间在断路器分闸时间中占比50%左右，通过改变弹簧机构分闸锁扣器动作时间是调整断路器分闸时间关键因素。为有效调整断路器分闸时间，文中根据断路器分闸动作的原理，以高压断路器用弹簧机构分闸锁扣系统为研究对象，采用机械动力学仿真计算分析方法，分析分闸锁扣系统对断路器分闸时间的影响 ...
惠勇锋, 段晓辉, 郭良超, 马琰, 刘宇, 何保营, 宋广民, 李美荣, 许家源, 牛平凯, 赵莉   +10 more
doaj  

[Lipid metabolomics-based biomarker analysis of neonatal sepsis in serum and cerebrospinal fluid]. [PDF]

Se Pu
Wu WX, Diao FQ, Guo JF, Gu CM, Wu LH, Luo MY.   +5 more
europepmc   +1 more source

[Advances in basic and experimental diagnostic research on liver diseases in 2025​]. [PDF]

Zhonghua Gan Zang Bing Za Zhi
Chen DB, Yang RF, Chen HS.
europepmc   +1 more source

[Application of molecularly imprinted polymers-based sensors for determination of acute coronary syndrome biomarkers]. [PDF]

Se Pu
Zhang Y, Xia J, Zhu J, Zeng M, Bai J, Xu Q, Gao H.   +6 more
europepmc   +1 more source

[Case of tooth autotransplantation with robotic surgery assistance]. [PDF]

Hua Xi Kou Qiang Yi Xue Za Zhi
Liu Y, Song J, Chen X, Zhang C, Chen S, Zhang J, Gu Z.   +6 more
europepmc   +1 more source

[Comparative study of orthopaedic robot-assisted and arthroscopy-assisted treatment of Rockwood type <b>Ⅲ</b> and <b>Ⅳ</b> acute acromioclavicular dislocation]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Chen L, Li L, Yuan Y, Guo W.
europepmc   +1 more source

考虑机械式直流断路器实际工况的IGCT器件温度分布仿真研究

Gaoya dianqi
机械式直流断路器是柔性直流电网直流故障清除的重要手段，集成门极换流晶闸管（integrated gate commutated thyristor，IGCT）是机械式直流断路器的核心元件之一。在机械式直流断路器开断过程中，IGCT器件承受振荡衰减的浪涌电流。针对IGCT器件在机械式直流断路器开断过程中的温度分布，文中首先建立机械式直流断路器电路仿真模型，获取开断过程中IGCT器件承受的电流波形，然后建立IGCT电热耦合模型，研究了实际工况下的IGCT器件温度分布特性 ...
黄诗洋, 彭兆伟, 康子章, 李亚美, 孙浩, 徐党国, 王伟丞, 宁琳如   +7 more
doaj  

[Single-Center clinical application and analysis of Robot-Assisted endoscopic salivary gland surgery via a postauricular approach]. [PDF]

Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi
Han P, Liang F, Lin P, Li Y, Chen R, Huang X.   +5 more
europepmc   +1 more source

[Early effectiveness and safety of mini open endoscopy assisted anterior cervical discectomy and fusion in treatment of cervical spondylotic myelopathy]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Pan X, Wang X, Wang C, Su W, Sheng J.
europepmc   +1 more source

[The application of surgical robots in head and neck tumors]. [PDF]

Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi
Huang X, He Q, Wang D, Yan J, Wang Y, Liu X, Zheng C, Xu Y, Bai Y, Li C, Sun R, Wang X, Xiang M, Wang Y, Lu X, Tao L, Song M, Liang Q, Zhang X, Hu Y, Chen R, Liu Z, Liang F, Han P.   +23 more
europepmc   +1 more source