Results 61 to 70 of about 3,573 (110)

[Performance evaluation of different filtration fractions during daytime continuous renal replacement therapy]. [PDF]

Zhejiang Da Xue Xue Bao Yi Xue Ban
Wang L, Chen Y, Xu G, Xu C.
europepmc   +1 more source

[Construction and practice of the "Construction Supports Competitions-Competitions Nurture Teaching-Teaching Promotes Learning" closed-loop innovative teaching mode： a case study of micro-plasma emission spectrometer setup and trace element analysis experiment]. [PDF]

Se Pu
Xue WY, Ke D, Zhang X, Zhou XD, Yang RN, Chao QC, Chen ML, Meng H, Yang T.   +8 more
europepmc   +1 more source

用于大容量电力电子变压器的兆瓦级中频隔离变压器绕组设计与实验

Gaoya dianqi
兆瓦级中频变压器工作频率为数百到数千Hz，是大容量电力电子变压器（PET）的电磁耦合环节关键部件。通过提升变压器工作频率可以显著减小变压器体积，提高系统功率密度，而中高频涡流效应及大电流通流会造成变压器绕组损耗增大，效率降低。传统工频变压器绕组形式和结构因涡流损耗较大的原因将不再适用于兆瓦级中频变压器。目前，针对兆瓦级中频变压器的绕组组成及结构形式的研究较少。文中基于兆瓦级中频变压器绕组的频率特性，讨论不同绕组的理论计算方法。分析不同绕组的电密分布及损耗情况，选取了铜箔绕组作为兆瓦级中频变压器绕组 ...
胡家亮, 周兴达, 崔彬, 潘海宁, 赵彪, 尹立坤   +5 more
doaj  

[Determination of genotoxic impurity in the bulk drug of crizotinib by high performance liquid chromatography-electrospray ionization tandem mass spectrometry]. [PDF]

Se Pu
Zhan XB, Qin Y, Yan Y, Zhou J, Zhao LS.
europepmc   +1 more source

基于级联拓扑结构高功率密度固态变压器的关键技术研究

Gaoya dianqi
随着电力电子技术与能源互联网的发展，高功率密度固态变压器在智能电网、新能源并网等领域的应用需求日益迫切，而基于级联拓扑的设计是提升其功率密度的关键路径之一，这也对磁心、绕组、绝缘、损耗散热及介质损耗计算等关键技术提出了更高要求。为解决这些问题，文中针对3种电力电子拓扑结构的应用场景，深入探究高功率密度固态变压器的磁心设计、绕组设计、绝缘设计、损耗散热及介质损耗计算等方面相关关键技术研究，通过分析方波的谐波成分进行损耗模拟计算，并结合热仿真校验热点温度，为高密度固态变压器的研发提供理论及技术参考。
付耘溪, 赵子凡, 莫一克
doaj  

[State-of-the-art in peripheral nerve injury diagnosis and therapy]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Sun J, Chen L.
europepmc   +1 more source

[Development of a balloon sensor device for force-electrical coupling measurement of esophagus]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Ran P, Zhong Y, Lai Y, Liu L, Zhu Y, Zhu H.   +5 more
europepmc   +1 more source

[Progress on ultrasound-responsive piezoelectric drug delivery system for treatment of neurodegenerative diseases]. [PDF]

Zhejiang Da Xue Xue Bao Yi Xue Ban
Ma R, Chen Y.
europepmc   +1 more source

[A signal sensing system for monitoring the movement of human respiratory muscle based on the thin-film varistor]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Yuan Y, Zhang Z, Xie L, Huang H, Liu W.
europepmc   +1 more source

[Research progress in the application of molecular imprinting technology in catalysis]. [PDF]

Se Pu
Ye WM, He DC, Cui XJ, Ma HW, Qian B, Shi F.   +5 more
europepmc   +1 more source