[Research progress on combined transcranial electromagnetic stimulation in clinical application in brain diseases]. [PDF]
Sheng Wu Yi Xue Gong Cheng Xue Za ZhiWei Y, Wang T, Wang C, Zhang Y, Xu G.
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Gaoya dianqi磁吹结构和运动机构特性是影响直流接触器电弧开断性能的重要因素。文中引入灭弧室中非均匀磁场分布与动触头运动特性的耦合影响，构建了电、磁、气流、温度等多场耦合的二维电弧磁流体动力学仿真模型，分析了不同磁吹结构、反力弹簧刚度系数、触头超程等参数对直流电弧特性的影响。搭建了直流接触器电弧特性实验平台，开展了对比实验验证仿真结果。研究表明：提出在静触头之间增加中间永磁体的两种新型磁吹结构，较原结构燃弧时间分别缩短20.2%与14.7%，在电极下方磁吹结构增加中间永磁体的提升效果更好；反力弹簧刚度系数的最优选择为1.
武稼祥 +6 more
doaj
[Effect of 40 Hz pulsed magnetic field on mitochondrial dynamics and heart rate variability in dementia mice]. [PDF]
Sheng Wu Yi Xue Gong Cheng Xue Za ZhiZhang L, Geng D, Xu G, An H.
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[Research progress on the pretreatment and analysis of prohibited components of glucocorticoids in cosmetics]. [PDF]
Se PuLiu L, Xiao XH, Fang JH, Li GK.
europepmc +1 more source
[Thoughts and Prospects on Precision Control and Intelligent Positioning Robotic Systems Applied in Nasojejunal Feeding Tube Placement]. [PDF]
Sichuan Da Xue Xue Bao Yi Xue BanQiu Y +9 more
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文章在评论柯瓦雷、韦斯特佛和弗洛里斯·科恩等三位科学史家编史纲领的基础上,指出科学革命是一个有结构的动力学进程,该结构由数学化表征、本体论承诺和发现型实验三大主题交织而成。这三大主题之间的相互限制和相互促进,构成了科学革命的主线。自然的数学化只能从数学表征这个角度来理解,并且不能脱离其他两大主题而独立发展。数学化表征既依赖于我们关于物理实在的本体论承诺 ...
郝刘祥
core
[Extracellular matrix materials and tissue regeneration and repair]. [PDF]
Zhongguo Xiu Fu Chong Jian Wai Ke Za ZhiZhao L, Xie H.
europepmc +1 more source
[Synthesis of a temperature-responsive multimodal motion microrobot capable of precise navigation for targeted controllable drug release]. [PDF]
Nan Fang Yi Ke Da Xue Xue BaoZhao X +5 more
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 PuWen YP +6 more
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Dianci bileiqi高空电磁脉冲具有场强幅值高、影响范围广、频谱范围宽等特点，能够通过场线耦合在电力系统形成高压、大电流脉冲，从而造成电力系统设备绝缘损坏。氧化锌压敏电阻作为电力系统常规过电压保护元件，其防电磁脉冲的钳压泄流性能较为优异。针对高空电磁脉冲作用下氧化锌残压电阻性能问题，搭建高空电磁脉冲试验效应冲击平台，对高空电磁脉冲作用下氧化锌压敏电阻过冲峰值、残压和响应时间特性进行研究。结果表明：在高空电磁脉冲效应试验上升沿20ns、半高宽500ns的波形冲击下 ...
徐乐 +9 more
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