气体绝缘金属封闭输电线路(GIL)是为超长距离、大容量的地下输电线路开发的一种电力设备,作为一种新型输电设备,得到广泛应用。与气体绝缘开关设备(GIS)相比,由于GIL内部的绝缘气体总量大,安装环境复杂,发生泄漏后对环境及电力系统安全影响很大。在中国特高压苏通管廊工程中,GIL中SF6气体的总量高达750 t,文中通过局部包扎法、整体扣罩法和氦检漏3种检漏方法的研究和比较,针对不同形状的特高压GIL极低漏气率要求,研究了氦质谱真空检漏的检测方法、试验装置及关键参数,并应用于长度为20 ...
郝宇亮 +5 more
doaj
[Management and consideration of positive surgical margins in locally advanced oropharyngeal squamous cell carcinoma treated with oral robotic surgery]. [PDF]
Hu Y, Zhang X.
europepmc +1 more source
气体绝缘金属封闭开关设备(GIS)绝缘件内部缺陷引起的放电击穿故障会造成设备非计划停运,且GIS设备故障检修周期长、影响范围大,严重威胁设备和电网的运行安全。目前,对于GIS设备绝缘件应力集中、弱电场区域微小气隙等部分潜伏缺陷,现有试验方法检测有效性受限,其长期运行中的缺陷劣化规律尚不清晰,制约了GIS绝缘件质量提升。文中基于一起GIS隔离开关绝缘子局放缺陷,提出了GIS设备绝缘件的温度、机械—电场同步老化、强电场老化试验方法,探索内部缺陷发展规律。首先将绝缘子装入GIS隔离开关样机 ...
李健俊 +9 more
doaj
[Effects of cold atmosphere plasma treatment on the biological behavior of human gingival fibroblasts]. [PDF]
Zheng M +7 more
europepmc +1 more source
[Repair and reconstruction of facial organ injuries: a perfect fit of structure and function]. [PDF]
Song BQ, Pei JM.
europepmc +1 more source
[Safety and Clinical Benefit Analysis of No-chest-tube Strategy After Uniportal Video-assisted Thoracoscopic Pulmonary Wedge Resection Based on Propensity Score Matching]. [PDF]
Lin C +7 more
europepmc +1 more source
[Preclinical Development Process and Prospects of Real-time Fluorescence Quantitative Polymerase Chain Reaction Detection Kits]. [PDF]
Wang C, Li S, Zhang S.
europepmc +1 more source
针对气体绝缘开关(gas insulated switchgear,GIS)腔体设备故障检测与异物清理的实际需求,研制了一种将柔性臂与轮式移动平台结合的气体绝缘开关设备检测维护机器人。在该机器人基础上,设计了以微处理器STM32与计算模块Jetson Xavier NX为核心,多传感器融合的机器人控制系统,实现了机器人的实时远程视频检测、运动控制等功能,并且结合异物检测定位算法,实现了柔性臂的一种智能控制方案。最终测试结果表明,该控制系统能够控制机器人在GIS腔体环境下平稳运行并实现故障检测与异物清理 ...
吴霖 +4 more
doaj
[Current application and future development trends of robotic head and neck surgery]. [PDF]
Huang X.
europepmc +1 more source
[The application of surgical robots in head and neck tumors]. [PDF]
Huang X +23 more
europepmc +1 more source

