Gaoya dianqi片形金属微粒是气体绝缘开关设备（gas-insulated switchgear，GIS）内部常见的潜在缺陷，其在电场作用下的运动及放电行为可能引发绝缘失效，威胁设备安全。现有研究主要关注电场单独作用下的微粒运动，而稳态机械振动的影响尚缺乏系统研究。文中搭建了可同时施加高电压与机械振动的GIS缩比实验平台，研究了机—电联合作用下片形金属微粒的运动模式及其放电特性。实验结果表明，微粒的起跳—停跳特性受质量及形状影响显著，趋向正方形的颗粒起跳场强较高（0.80～1.1 kV/mm ...
赵莹莹 +5 more
doaj
[Revolution teaching practice in sample pretreatment supported by large-scale instrument： a case study of magnetic covalent organic framework enriching organic ultraviolet filters in seawater]. [PDF]
Se PuLi S +5 more
europepmc +1 more source
[Radiological characteristics and associated factors of single-level cervical disc herniation combining with focal ossification of posterior longitudinal ligament]. [PDF]
Zhongguo Xiu Fu Chong Jian Wai Ke Za ZhiYe Y +5 more
europepmc +1 more source
, 2019 带电水冲洗是变电站绝缘子串防污闪的主要措施,应用带电水冲洗机器人,可以解决人工水冲洗存在的问题。介绍了带电水冲洗机器人的构型,对其移动底盘、机械臂和整机进行运动学建模,并进行仿真分析。所做研究为带电水冲洗机器人的优化设计与应用提供了参考。
陈龙, 肖建华, 王天龙
core
[Endodontic retreatment of a maxillary second molar with chronic apical periodontitis and separated instrument: A case report]. [PDF]
Beijing Da Xue Xue Bao Yi Xue BanZang H, Liang Y.
europepmc +1 more source
[Progress on ultrasound-responsive piezoelectric drug delivery system for treatment of neurodegenerative diseases]. [PDF]
Zhejiang Da Xue Xue Bao Yi Xue BanMa R, Chen Y.
europepmc +1 more source
Gaoya dianqi机械类缺陷是GIS设备运行阶段的常见缺陷之一。针对机械缺陷导致GIS异常振动问题开展机理研究，能够有效排查现场设备故障隐患。文中首先通过有限元建模，对某126 kV三相共体式GIS运行时可能出现的屏蔽罩松动缺陷进行仿真，探究设备在缺陷状态下的异常振动机理及特征。其次，分别对建立的GIS正常模型和屏蔽罩松动模型进行磁固耦合仿真，通过后处理获得了筒体上的振动结果。最后，搭建了同一型号的GIS试验平台进行了缺陷模拟试验，对相同缺陷状态下GIS运行振动信号进行了检测分析。结果表明，文中所分析的126 kV ...
刘咏飞 +6 more
doaj
[Preparation of mesoporous covalent organic framework core-shell stationary phase and its application in the analysis of astragaloside Ⅳ content in <i>Astragalus</i>]. [PDF]
Se PuZhao XY +7 more
europepmc +1 more source
[D-wave-guided navigation in spinal cord surgery: From monitoring to decision-making]. [PDF]
Zhong Nan Da Xue Xue Bao Yi Xue BanLi J, Xi J, Jiang X.
europepmc +1 more source
[Expert consensus on airway lavage therapy for adult burn patients (2026 edition)]. [PDF]
Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za ZhiChinese Burn Association +1 more
europepmc +1 more source