Results 121 to 130 of about 8,626 (169)

基于同步授时的广域电容型设备的绝缘缺陷监测

open access: yesGaoya dianqi
为了及时获悉运行中的电容型设备的绝缘状态,提高变电站的运行可靠性,以相对介质损耗测试作为对容性设备绝缘性能判断的重要参考,构建了实时带电在线监测系统,大大提高了检测效率。通过在同一电力系统下各变电站内、处在相同电压等级、相同频率以及相同相别母线的容性设备设置无线监测单元,构建监测系统,采集环路电流数据,实时计算相对介质损耗因数,并利用多设备标识信息,通过相互比较,从多设备中定位绝缘缺陷设备,实现了容性设备的绝缘缺陷在线监测。案例显示,该方法具有良好的监测效果。
谢佳   +5 more
doaj  

[Clinical practice guideline for point-of-care ultrasound-guided peripherally inserted central catheter placement in neonates (2026)]. [PDF]

open access: yesZhongguo Dang Dai Er Ke Za Zhi
Asia-Pacific Health Association Pediatric Medicine Branch   +3 more
europepmc   +1 more source

[Characterization of Immune Reconstitution Patterns in B-cell Subsets Mediated by B-cell Targeted Therapies]. [PDF]

open access: yesSichuan Da Xue Xue Bao Yi Xue Ban
Wang X   +11 more
europepmc   +1 more source

[Application of infrared thermography in breast reconstruction and plastic surgery and limb reconstruction]. [PDF]

open access: yesZhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Jian H   +26 more
europepmc   +1 more source

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