Results 61 to 70 of about 1,631 (115)

一种新型混合型超导限流器的设计与实验研究

Gaoya dianqi
为解决传统电阻型超导限流器因超导组件参与常态通流而产生的超导带材用量过多及电流引线漏热功率过大等问题，提出了一种适用于中压船舶直流电力系统短路故障保护的新型混合型超导限流器拓扑结构。对其基于IGBT、高速真空开关的联合换流过程进行了试验研究与理论计算，得出了电容、电感、电阻等参数对换流过程的影响规律；采用盘式无感绕制的方式制作了超导带材盘，组成的高温超导组件电感值仅2.9 μH；介绍了限流器用高速真空开关的触头运动特性；最后对限流器样机进行了试验，样机成功将预期峰值为57.6 kA的短路电流限流至24 ...
陆利强, 庄劲武, 柯其琛, 李思光, 岳丹阳   +4 more
doaj  

[Determination of 30 homologues of phosphatidylcholines and lysophosphatidylcholines in human serum by liquid chromatography-tandem mass spectrometry and their correlation analysis with coronary artery disease]. [PDF]

Se Pu
Li WY, Liu ZY, Dong J, Yang RY, Li HX, Chen WX, Wang SM.   +6 more
europepmc   +1 more source

[Evaluation of an interpretable 12-lead ECG automatic diagnosis model based on deep feature fusion]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao
Lu X, Chen H, Wu Q, Wen Y, Liu G, Chen C.   +5 more
europepmc   +1 more source

[Exposures to volatile organic compounds are positively correlated with risks of metabolic dysfunction-associated steatotic liver disease]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao
Li K, Zeng W, Zhang Y, Zhu X, Guo B.
europepmc   +1 more source

SF₆替代气体C₄F₇N/CO₂喷口灭弧性能分析

Gaoya dianqi
近几年，C4F7N/CO2混合气体因为较低的温室效应和优异的绝缘性能受到广泛关注，但是C4F7N的电弧分断性能实验昂贵、费时，所以文中以SF6和C4F7N/CO2混合气体为研究对象，建立了在固定开距直流电源条件下的电弧模型。通过电弧累计能量和电导的计算结果分析SF6和C4F7N/CO2混合气体的灭弧性能，通过对径向温度、物性参数的分析和能量运输的计算分析SF6和C4F7N/CO2混合气体的换热机理。研究结果表明，C4F7N/CO2混合气体的电弧特性比较接近SF6气体 ...
李静, 荐雯, 曹云东, 王成丽
doaj  

[Efficacy analysis of electrochemical detection of leukocyte esterase based on glucosyl ester in diagnosis of periprosthetic joint infection after knee arthroplasty in rabbits]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Luo N, Chen Q, Zeng T, Zuo H, Niu D, Shen B.   +5 more
europepmc   +1 more source

[How I treat vasovagal syncope in children]. [PDF]

Zhongguo Dang Dai Er Ke Za Zhi
Zou RM, Wang C.
europepmc   +1 more source

[Application and progress of artificial intelligence agents in drug development]. [PDF]

Zhejiang Da Xue Xue Bao Yi Xue Ban
Zhao D, Hsieh C.
europepmc   +1 more source

[Advances in liver transplantation technology]. [PDF]

Zhonghua Gan Zang Bing Za Zhi
Zhu ZJ.
europepmc   +1 more source

[Expert consensus on overall standardized management of gadoxetate disodium-enhanced MRI examinations (version 2026)]. [PDF]

Zhonghua Gan Zang Bing Za Zhi
Abdomen Group of Chinese Society of Radiology, Chinese Medical Association, Nursing Group of Chinese Society of Imaging Technology, Chinese Medical Association, Chongqing Society of Radiology, Chongqing Medical Association, Imaging Nursing Committee, Chongqing Nursing Association.   +7 more
europepmc   +1 more source