[Determination of squalene and oxidized squalene in edible oil by gas chromatography-tandem mass spectrometry and evaluation of the thermal stability of squalene]. [PDF]
Se PuXiao GP, Liao DD, Li GS, Luo X, Yuan L.
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Gaoya dianqi, 1972 西安高压电器研究所和西安高压电瓷研究所共同合作研制成功了一种供110千伏SF6全封闭组合电器用的SF6磁吹避雷器。这种避雷器的特点是本体放在一个充有一个表压的SF6气体的密闭的金属容器内。本体由串联间隙、阀片和保证串联间隙电压分布均匀的电阻、电容组合而成。单个火花间隙的灭弧电压为6千伏,主间隙由一对铜钨电极组成 ...
doaj
基于小样本随机森林模型的低气压下室内设备空气放电故障识别方法研究
Gaoya dianqi空气绝缘的室内电力设备发生放电故障时，利用半导体气体传感器检测空气放电分解物的成分和含量，能够判断放电故障的严重程度，因此研发智能、精准的机器嗅觉算法对监测室内电力设备的正常运行有着重要意义。本文搭建了空气放电实验平台，模拟了低气压高海拔条件下的火花和局部放电故障，通过基于半导体传感器阵列的空气放电分解物检测装置对不同放电故障的气体分解物进行特征提取，然后利用基于主成分分析的小样本扩充增强方法对数据集进行丰富和精简，最后采用随机森林算法对放电分解故障进行分类。结果表明随机森林算法平均识别准确度97.22%
李天辉 +7 more
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[Medical treatment standards for emergency burn wounded (2025 edition)]. [PDF]
Zhongguo Xiu Fu Chong Jian Wai Ke Za ZhiNational Health Commission Of The People's Republic Of China.
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[Mechanisms and protective strategies for astronaut skin injury in deep space environments]. [PDF]
Zhong Nan Da Xue Xue Bao Yi Xue BanXie Y, Zeng J.
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[Analysis of the number, type, and functional heterogeneity of senescent cells in the radiation-induced skin wounds in mice]. [PDF]
Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za ZhiChen Y, Cheng Z, Ma L, Shi CM.
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Dianci bileiqi杆塔接地装置的冲击接地电阻是影响输电线路耐雷水平的重要参数之一。垂直接地极能够立体的流散冲击电流，采用水平接地极与垂直接地极相结合的复合接地装置往往可以起到不错的效果。改变垂直接地极排布方式，各个导体段流散的电流也随之改变，考虑到土壤的火花放电，这势必会影响到接地导体的等值半径。建立了一种垂直接地极与水平接地极相结合的、考虑土壤火花效应的接地装置暂态电路模型，并通过该电路模型求解各段接地导体的等值半径，从而分析这类复合接地装置的冲击特性。结合实际分析，提出了一种垂直接地极的等差排布方式。仿真结果表明 ...
王润璞 +5 more
doaj
[<i>Jia Wei Qingxin</i> Lotus Seed Drink improves diabetic kidney disease in mice by regulating the KDM3C/SP1 signaling pathway]. [PDF]
Nan Fang Yi Ke Da Xue Xue BaoXie J, Luo Y, Xia J, Wang M.
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[Radix codonopsis combined with Poria improves cognitive impairment in rats with unilateral common carotid artery ligation by regulating the ERα/PI3K/Akt signaling pathway]. [PDF]
Nan Fang Yi Ke Da Xue Xue BaoYang J +7 more
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[Effects of hyperoxia on the expression of hippocampal N-methyl D-aspartate receptor 1 and its synapse-associated molecules in neonatal rats]. [PDF]
Zhongguo Dang Dai Er Ke Za ZhiXiong Y +4 more
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