Results 71 to 78 of about 149 (78)
Gaoya dianqi文中介绍了72.5 kV及以上气体绝缘金属封闭开关设备（简称GIS）常用的3种结构类型的三工位隔离接地开关：双导电杆连杆传动的三工位隔离接地开关、滚珠丝杠传动的三工位隔离接地开关、齿轮齿条传动的三工位隔离接地开关。这3种三工位隔离接地开关有别于传统的旋转闸刀式结构，都是属于国内外主流的动触头直动插入式结构。通过对这3种三工位隔离接地开关结构、滑动电联接形式以及运动形式的阐述，分析了各种结构的优势，为GIS核心模块部件的改进和优化设计提供技术指导。
吴小虎 +6 more
doaj
[The simulative study of a new probe for the in vivo dielectric measurement of anisotropic tissue in radio frequency band]. [PDF]
Sheng Wu Yi Xue Gong Cheng Xue Za Zhi, 2018 Zhang L, Zhang X, Zhou D, Li G, Liu P.
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[Application and efficacy analysis of tympanic cartilage shaping device in endoscopic type Ⅰ tympanoplasty]. [PDF]
Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za ZhiJin Y +9 more
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[Application of micro-power system in the surgery of tooth extraction]. [PDF]
Hua Xi Kou Qiang Yi Xue Za Zhi, 2015 Kaijin H, Yongfeng L.
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[Effects of polyethylene oxide on blood perfusion in the hind limbs of rats with chronic hindlimb ischemia]. [PDF]
Nan Fang Yi Ke Da Xue Xue Bao, 2017 Zheng DZ, Zhou T, Zha DG.
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Gaoya dianqi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
[Progress in the regulation of bone remodeling at the cellular level]. [PDF]
Sheng Wu Yi Xue Gong Cheng Xue Za Zhi, 2017 Hu Y, Wang L, Jiang L, Xu H, Zhu S.
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[Clinical analysis of interventional bronchoscopy for the treatment of malignant obstructive atelectasis]. [PDF]
Zhongguo Fei Ai Za Zhi, 2011 Wang H +6 more
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