[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
[Advances in the assessment and management of voice disorders]. [PDF]
Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za ZhiXu W.
europepmc +1 more source
[Research progress on paper-based microfluidic chips in pathogen detection]. [PDF]
Se PuLiu XT, Shi J, Shi M.
europepmc +1 more source
[Effects of 40 Hz light flicker stimulation on hippocampal-prefrontal neural activity characteristics during working memory tasks in Alzheimer's disease model rats]. [PDF]
Sheng Wu Yi Xue Gong Cheng Xue Za ZhiLiu S, Wang L, Li S, Xu G.
europepmc +1 more source
[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
1 000 kV输电线路耐张塔等电位带电作业电位转移电流计算
Gaoya dianqi特高压输电线路等电位带电作业过程中会出现电弧放电，产生高幅值、高能量的脉冲电流，因此提出准确的转移电流计算方法对作业人员的安全防护具有重要意义。文中提出了基于电弧模型的电位转移电流计算方法，可对进入等电位的过程进行模拟。基于PSCAD平台建立了1 000 kV输电线路耐张塔等电位带电作业电位转移电流计算模型，同时分析了进入等电位的方式及速度对转移电流的影响。仿真与实测结果基本一致，表明该计算模型能够有效反映电位转移电流的动态变化特性。采用软梯法获得的转移电流峰值更小，提高进入等电位速度 ...
龙泉 +6 more
doaj
[Determination of caffeine and taurine in electronic cigarette oil by high performance liquid chromatography- tandem mass spectrometry]. [PDF]
Se PuSun X +4 more
europepmc +1 more source
基于DBO-SVM直升机大型吊篮相地间隙操作冲击放电电压的预测
Gaoya dianqi直升机大型吊篮安全距离依赖于典型带电作业间隙放电电压的确定，由于吊篮其体积大且间隙结构复杂，在实际试验当中悬挂困难，难以固定，相比于其他类型的间隙放电试验而言，所花费的成本更高、周期更长。本文提出基于蜣螂优化算法的支持向量机（Support vector machine for optimizing dung beetle algorithm,DBO-SVM）模型，用于预测直升机大型吊篮相地间隙的放电电压。搭建了直升机大型吊篮相地间隙正极性操作冲击放电试验平台，获得相地间隙的放电特性曲线 ...
刘凯 +7 more
doaj
[Rapid identification and analysis of hemoglobin isoelectric focusing electrophoresis images based on deep learning]. [PDF]
Se PuJi WC +6 more
europepmc +1 more source