, 2008 2004~2008年调查了西部电网电击猛禽情况。调查区域包括新疆、青海、四川、甘肃、西藏等省区。共统计10 kV和35 kV输电线路长度178 km、杆塔数1 800余根;收集线路附近鸟的尸体、羽毛、残骸等110件,用于鉴定鸟种。调查结果,被电死猛禽计79只(10 kV),平均每千米输电线路1.36只,11.31%的杆塔对鸟类构成威胁;35 kV输电线路上鸟巢数44个,平均每千米输电线路0.37个,至少6.06%杆塔被猛禽利用。已知24%~40%的跳闸停电事故是由于鸟类引发的。症结分析 ...
Andre Dwixon, 梅宇, 胡宝文, 马鸣
core
Dianci bileiqi, 2014 线路避雷器被认为是治理雷电绕击跳闸的有效手段,但实际使用中常发现在绕击雷电流作用下本基杆塔线路避雷器动作而相邻杆塔绝缘子串仍闪络的情况,为此基于电气几何模型研究了典型500 kV线路在不同地形影响下最大绕击雷电流变化情况,使用ATP-EMTP对大雷电流作用情况下绕击高电位转移的机理进行了分析,提出了使用多基杆塔连续安装线路避雷器防治高电位转移的方法。研究表明,在易发生大电流绕击的杆塔及其前后杆塔连续安装线路避雷器,大电流绕击导致的高电位转移是可以防治的。
刘守豹 +5 more
doaj
[Magnetic one-step purification-high performance liquid chromatography-triple quadrupole/composite linear ion trap mass spectrometry for the determination of 54 veterinary drug residues in carp]. [PDF]
Se PuWen YP +6 more
europepmc +1 more source
[Causal relationship between <i>Helicobacter pylori</i> infection and childhood immune thrombocytopenia and influencing factors for prognosis]. [PDF]
Zhongguo Dang Dai Er Ke Za ZhiZhou XY +7 more
europepmc +1 more source
[<i>Thesium chinense</i> Turcz. alleviates antibiotic-associated diarrhea in mice by modulating gut microbiota structure and regulating the EGFR/PI3K/Akt signaling pathway]. [PDF]
Nan Fang Yi Ke Da Xue Xue BaoXu H +5 more
europepmc +1 more source
[Preface for Special Issue of Environmental and Health Analysis]. [PDF]
Se PuWang HL, Lai WY.
europepmc +1 more source
[Design and analysis of human arm pathological tremor simulation system]. [PDF]
Sheng Wu Yi Xue Gong Cheng Xue Za ZhiHe Z, Liu H, Liu Q, Jiang Y, Zhu Z.
europepmc +1 more source
, 2019 1．本外观设计产品的名称：架空输电线路巡检机器人。2．本外观设计产品的用途：本外观设计产品用于对输电线路、杆塔、线路通道及交叉跨越等设施带电巡检，以便运检人员及时准确地掌握输电线路的运行状态，发现线路设施的损伤、缺陷等故障情况。3．本外观设计产品的设计要点：设计要点在于该外观设计产品形状。4．最能表明本外观设计设计要点的图片或照片 ...
傅博 +5 more
core
[Rapid screening of 111 pesticides and veterinary drugs in livestock and poultry meat by ultra performance liquid chromatography-quadrupole-time of flight mass spectrometry]. [PDF]
Se PuWang YM +5 more
europepmc +1 more source