Results 101 to 110 of about 1,396 (151)

35kV空心电抗器工频磁场最优抑制方式的研究分析

Gaoya dianqi, 2015
干式空心电抗器运行时产生的强磁场是变电站和换流站内电磁污染的主要来源,其产生的强磁场引起了变电站和换流站接地网导体的发热、对周围设备的磁干扰以及对运行人员身体健康的影响等。为此,通过有限元分析软件ANSYS的仿真,探讨了在三相一字形排列的干式空心电抗器最优工频磁场的抑制方式,对比分析了多种屏蔽方式下的磁场屏蔽效果,最终得出了在三相一字型排列的干式空心电抗器底部加钢屏蔽侧围加铝屏蔽的镂空屏蔽罩的最优磁场屏蔽方式,在这种屏蔽方式下,磁场的抑制效果最好,且对电抗器的影响较小。
张宁, 李琳
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

[Magnetic one-step purification-high performance liquid chromatography-triple quadrupole/composite linear ion trap mass spectrometry for the determination of 54 veterinary drug residues in carp]. [PDF]

Se Pu
Wen YP, Huo WD, Zhang CY, Liu H, Mu YC, Wu LD, Li JC.   +6 more
europepmc   +1 more source

[Progress in electric field assisted molecular imprinting technology]. [PDF]

Se Pu
Wu JY, Huang XJ.
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

[Prospects and technical challenges of non-invasive brain-computer interfaces in manned space missions]. [PDF]

Zhong Nan Da Xue Xue Bao Yi Xue Ban
Ju Y, Liu J, Li Z, Liu Y, He H, Liu J, Liu B, Wang M, Zhang Y.   +8 more
europepmc   +1 more source

[Research progress on combined transcranial electromagnetic stimulation in clinical application in brain diseases]. [PDF]

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

考虑电压采集电磁信号干扰的氧化锌避雷器在线监测

Gaoya dianqi
为实时监测氧化锌避雷器运行状态，提出考虑电压采集电磁信号干扰的氧化锌避雷器在线监测方法。利用经验模态分解方法去除原始电压信号中的电磁噪声，消除电磁干扰；利用谐波分析法对电压与电流信号实施快速傅里叶变换操作，简化运算，获取避雷器的阻性、基波阻性以及三次谐波电流，由此判定氧化锌避雷器运行状态。实验证明：该方法可以有效去除电磁噪声以及无用信息，保留了有效信息，测量误差也未超过0.25%，能够有效监测出氧化锌避雷器的运行状态。
李宝银, 吴宏亮, 龚子豪
doaj  

[Research progress on ionic liquid-functionalized magnetic Fe₃O₄ nanomaterials in sample pretreatment- chromatographic analysis]. [PDF]

Se Pu
Li JX, Zhao LZ, Sun XM, He ZQ, Cao HL, Luo YJ, Yang B.   +6 more
europepmc   +1 more source

[Advances in multimodal biomedical imaging of small animals]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Deng Z, Xi P, Tang J, Ren Q, Yu Y.
europepmc   +1 more source