Results 81 to 90 of about 442 (127)

[Simulation research on magnetoacoustic B-scan imaging of magnetic nanoparticles]. [PDF]

open access: yesSheng Wu Yi Xue Gong Cheng Xue Za Zhi, 2020
Shi X, Liu G, Yan X, Li Y.
europepmc   +1 more source

[Oral panorama reconstruction method based on pre-segmentation and Bezier function]. [PDF]

open access: yesSheng Wu Yi Xue Gong Cheng Xue Za Zhi, 2023
Hou C   +5 more
europepmc   +1 more source

真空断路器中电弧的运动

open access: yesGaoya dianqi, 1987
1.简介 当真空断路器触头分开时,会产生金属蒸气电弧放电,在电弧电流超过10kA时,自生磁场会使电弧产生严重的收缩。 触头局部过热不仅会引起触头严重烧损,而且会降低触头的开断能力。这是由于产生高密度金属蒸气的缘故。因而就很有必要研究电弧的运动特性。 以前主要通过光学方法(例如高速摄影法)对装有观察窗的真空灭弧室进行研究。对于实际真空灭弧室,可以利用测量灭弧室周围磁场变化来反映电弧旋转。
doaj  

[Potential biological mechanisms underlying spaceflight-induced depression symptoms in astronauts]. [PDF]

open access: yesZhong Nan Da Xue Xue Bao Yi Xue Ban
Li Z   +5 more
europepmc   +1 more source

[Spherical measurement-based analysis of gradient nonlinearity in magnetic resonance imaging]. [PDF]

open access: yesSheng Wu Yi Xue Gong Cheng Xue Za Zhi
Yang X   +7 more
europepmc   +1 more source

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