Gaoya dianqi为了提升电力储能系统中早期故障氢气浓度检测的精度与效率，进而确保储能设备的安全运行和高度稳定性，文中采用磁控溅射共溅射技术制备了系列SnO2/Pd薄膜型氢气传感器。通过采用不同射频溅射功率（130 W和150 W）在陶瓷片上制备了SnO2掺杂Pd的金属氧化物半导体薄膜，进行了全面的气敏性能测试。结果显示，150 W功率的样品（样品B）在相同氢气浓度下展现出更佳的响应性和较高的工作温度，而130 W功率的样品（样品A）则表现出更优异的长期稳定性。两种传感器均具备良好的选择性，能有效区分油中其他干扰气体 ...
穆石磊 +6 more
doaj
Gaoya dianqi, 2019 针对西北电网某变电站高压断路器液压操作机构频繁打压故障,通过解体分析,逐步排查各部件,发现是由于一级阀密封圈损坏,导致控制阀渗漏油;油压开关存在内渗漏,油箱防震容器损坏,从而导致油泵频繁启动。通过分析部件动作过程及生产工艺,发现控制阀阀座?6小孔与倒角不同轴造成两侧受力不均,密封圈局部发生变形;储能活塞与活塞缸的接触面过于粗糙,摩擦产生的杂质混入液压油;活塞、导向杆以及弹簧座的配合尺寸研磨不当;在装配过程中防震容器的阀口或钢珠损坏;这4点都是导致液压油渗漏的原因。此外 ...
马佳豪 +5 more
doaj
[Determination of eight per- and polyfluoroalkyl substances in seawater using dispersive membrane extraction-ultra-high performance liquid chromatography-tandem mass spectrometry]. [PDF]
Se PuRen Z +5 more
europepmc +1 more source
Gaoya dianqi近年来，特高压直流工程发生多起因晶闸管电压监测板（thyristor voltage monitoring board，TVMB）积污引起的换流阀停运事故。文中针对TVMB故障开展深入研究，介绍了TVMB的工作原理，针对关键模块开展电路分析，探讨了TVMB的失效机理；搭建了TVMB电路模型并开展仿真工作，主要研究了元件参数变化对TVMB功能的影响；搭建了TVMB加压试验平台并对理论和仿真分析结果进行了验证；最后提出了针对TVMB失效故障的防治对策。研究结果表明TVMB长年运行后积污严重 ...
刘子琛 +4 more
doaj
[Comprehensive analytical chemistry experiment： analysis of non-covalent interactions between double-stranded deoxyribonucleic acid and a natural drug by electrospray ionization mass spectrometry]. [PDF]
Se PuMa L, Wang YH, Yuan YL, Wang SS.
europepmc +1 more source
[Determination of 17 bisphenol compounds in human urine by solid supported liquid-liquid extraction-ultra-high performance liquid chromatography-tandem mass spectrometry]. [PDF]
Se PuJin Y +6 more
europepmc +1 more source
[Research and application implementation of the Internet of Things scheme for intensive care unit medical equipment]. [PDF]
Sheng Wu Yi Xue Gong Cheng Xue Za ZhiLiang H +6 more
europepmc +1 more source
[Limb reconstruction over four decades: the seamless path from technical integration to disciplinary ecology]. [PDF]
Zhongguo Xiu Fu Chong Jian Wai Ke Za ZhiZhu Y.
europepmc +1 more source
[Overwork damages myocardial energy metabolism homeostasis in mice]. [PDF]
Nan Fang Yi Ke Da Xue Xue BaoCui J +6 more
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[<i>Tiaozhou Ziyin</i> recipe for treatment of premature ovarian insufficiency: efficacy, safety and mechanism]. [PDF]
Nan Fang Yi Ke Da Xue Xue BaoTang P +6 more
europepmc +1 more source