Results 131 to 140 of about 8,566 (169)

氧化铝陶瓷典型缺陷结构对电场分布的影响研究

Gaoya dianqi
在高电压环境下，显微缺陷结构的存在会导致绝缘材料内产生电场畸变，是影响氧化铝陶瓷绝缘强度的重要因素之一。为了研究高电压环境下氧化铝陶瓷典型缺陷结构对材料内电场分布的影响，建立了包含缺陷结构的细观陶瓷结构模型，并采用有限元软件分析了晶粒尺寸、玻璃相以及气孔的存在对电场分布的影响规律。结果表明：晶粒尺寸对电场畸变程度的影响较小，而玻璃相的存在对电场畸变程度的影响较大。玻璃相对电场畸变的影响与晶界方向有关，晶界与电场方向夹角越大，玻璃相处的电场畸变程度越大。与晶粒尺寸和玻璃相的影响相比 ...
李平安, 张朋, 李秀峰, 王文成, 王小强   +4 more
doaj  

[Determination of four classes of 34 chlorinated persistent organic pollutants in seawater by solid-phase extraction and gas chromatography-electrostatic field orbitrap high resolution mass spectrometry]. [PDF]

Se Pu
Gao MH, Li XY, Gao Y, Zhang HJ, Chen JP.
europepmc   +1 more source

[Development and electrophysiological validation of a temporal interference transcranial magnetic stimulation system for mice]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Cui C, Wang T, Zhang Y, Zheng W, Xu G.
europepmc   +1 more source

[Progresses on temporal interference electromagnetic stimulation for non-invasive deep brain function modulation]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Zhou T, Yu P, Xu Y.
europepmc   +1 more source

[Determination of five veterinary drug residues in milk by ultra-high performance liquid chromatography-quadrupole/electrostatic field orbitrap mass spectrometry based on modified chitosan membrane purification]. [PDF]

Se Pu
Pan W, Zhang SP, Wang AQ, Hu J, Zhou LH.
europepmc   +1 more source

基于迭代计算的介电功能梯度绝缘子电场优化研究

Dianci bileiqi
介电功能梯度绝缘子可以在不改变几何结构基础上，优化整体电场分布，提高沿面闪络电压。依据经典电磁场理论，得到梯度绝缘子电场分布特性及优化理论。针对盆式绝缘子，以降低沿面最大场强为优化目标，提出一种基于迭代计算的盆式绝缘子电场优化设计方案。结合电场优化理论及迭代算法流程，通过分析叠层数、介电常数上限及表层厚度等影响因素，对设计方案的电场优化效果进行对比研究。计算结果表明，对比匀质盆式绝缘子，体/表层梯度盆式绝缘子沿面最大场强降幅明显，最高可达34.37%、39.08%，优化效果显著，电场分布均匀性大大提升。
何柏娜, 尉元龙, 娄辉, 代维汉, 张东进, 王硕, 李祖元, 刘晨旭, 高磊   +8 more
doaj  

[Research progress on the pretreatment and analysis of prohibited components of glucocorticoids in cosmetics]. [PDF]

Se Pu
Liu L, Xiao XH, Fang JH, Li GK.
europepmc   +1 more source

国家海洋局关于进一步规范海上风电用海管理的意见 [PDF]

, 2016

core  

[Rapid determination of 22 functional components in cosmetics using ultra-high performance liquid chromatography-linear ion trap/orbitrap high resolution mass spectrometry]. [PDF]

Se Pu, 2022
Xiong C, Ding T, Liu J, Yi O, Ding X, Xie Y.   +5 more
europepmc   +1 more source

[Occurrence characterization of fluorinated liquid crystal monomers in indoor dust and human health exposure risks]. [PDF]

Se Pu
Wang SY, Hua K, He JH, Gao K, Lu LP.
europepmc   +1 more source