Results 121 to 130 of about 669 (155)

[Research progress on endoscopic image diagnosis of gastric tumors based on deep learning]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Gao Y, Wei G.
europepmc   +1 more source

[Rapid screening and confirmation of 86 illegally added chemicals in fishery drugs by ultra performance liquid chromatography-quadrupole-time-of-flight mass spectrometry]. [PDF]

Se Pu, 2022
Ke Q, Li S, Wang D, Zhou Q, Zhou F, Bei Y, Chen X, Wang Y.   +7 more
europepmc   +1 more source

有限施工面积条件下配电线路杆塔紧凑型接地降阻方法研究

Dianci bileiqi
输配电线路防雷的重点均在于降低杆塔的接地电阻，但配电线路杆塔往往因距离居民生活区较近而缺少一定的接地施工面积，使得常规的杆塔降阻措施的应用受到了一定限制，并存在接地电阻不能达标等问题。首先利用有限元仿真计算软件COMSOL Multiphysics建立了配电线路杆塔桩基自然接地仿真模型，计算分析土壤电阻率、杆塔埋深等因素对桩基冲击散流特性的影响规律；然后针对现有同塔多回配电线路所面临的耐雷性能不佳与接地降阻可供施工面积不足等问题，提出基于柔性接地模块的杆塔紧凑型接地降阻策略 ...
刘伟, 安韵竹, 熊洁, 苏威, 王毅, 张流杰   +5 more
doaj  

[Application of Improved Unet Network in the Recognition and Segmentation of Hemorrhage Regions in Brain CT Images]. [PDF]

Sichuan Da Xue Xue Bao Yi Xue Ban, 2022
Zhou ZS, Chen XM, Zhang HY, Wan HL, Zhao JY, Zhang T, Wang XY.   +6 more
europepmc   +1 more source

[Simultaneous detection of 34 pesticide and metabolite residues in vegetables and fruits using improved QuEChERS-gas chromatography-tandem mass spectrometry with carboxylated multi-walled carbon nanotubes]. [PDF]

Se Pu
Zhang XZ, Wang XM, Chen J, Zhang Z, Ding H, DU XZ, Lu XQ.   +6 more
europepmc   +1 more source

[Rapid screening of 84 pesticide residues in dendrobium by Sin-QuEChERS Nano purification column with gas chromatography-tandem mass spectrometry]. [PDF]

Se Pu, 2022
Zhang Q, Bi S, Wu Y, Li L, Zhou Y, Liu L, Liu W, Chen Q, Zhou X, Guo H.   +9 more
europepmc   +1 more source

[Analysis of 29 fentanyl analogs and their fragmentation mechanism by liquid chromatography-quadrupole time-of-flight mass spectrometry]. [PDF]

Se Pu, 2022
Dong Z, Yang C, Xu T, Dai D, Gao L, Yang L, Wang Q.   +6 more
europepmc   +1 more source

[Simultaneous determination of 50 veterinary drug residues in fish， shrimp， and crabs using a composite purification column-ultra-performance liquid chromatography-tandem mass spectrometry]. [PDF]

Se Pu
Deng HD, Ji XF, Xiao YP, Xia Q, Yang H.
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 Pu
Jin Y, Zhang LG, Zhou JX, Ma JJ, Yuan LL, Xiao P, Wang GQ.   +6 more
europepmc   +1 more source

[Determination of 222 pesticide residues in olive oil by fully automatic QuEChERS pre-treatment instrument coupled with gas chromatography-quadrupole-time-of-flight mass spectrometry]. [PDF]

Se Pu
Liang Y, Lei C, Wang B, Zhang H, Wang X, Zhou X, Qi Z, Zhu M.   +7 more
europepmc   +1 more source