Results 61 to 70 of about 428 (99)

Expert consensus on the prevention and first-aid management of burns in children. [PDF]

open access: yesZhongguo Dang Dai Er Ke Za Zhi, 2021
Pediatric Disaster Branch of Chinese Pediatric Society of Chinese Medical Association   +2 more
europepmc   +1 more source

[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

高压真空熔断器

open access: yesGaoya dianqi, 1986
本文结合真空电弧的纵向磁场特性、分析了真空熔断器的燃弧特性和熄弧原理,从熔化特性出发分析其弧前过程,总结真空熔断器的优点,提出了一些具体的可能实现的产品方案。认为发展较高电压等级,大额定电流的真空熔断器,对提高目前高压熔断器产品的水平有积极作用,也是今后高压断器产品发展方向之一。
doaj  

[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

双断口快速真空开关分闸速度对短路电流短燃弧时间开断特性影响

open access: yesGaoya dianqi
短路电流相控快速开断技术可以有效缩短开断的燃弧时间从而提升真空断路器的性能,文中通过研究分闸速度对双断口快速真空断路器短路电流开断短燃弧时间的影响规律,为双断口快速真空断路器相控短燃弧开断提供理论依据。文中实验采用2台12 kV快速真空断路器以及驱动控制系统,搭建了快速真空断路器短路电流短燃弧开断合成实验回路系统,得到了双断口短燃弧时间及临界熄弧开距与分闸速度关系曲线。实验结果表明,双断口短路电流开断短燃弧时间和临界熄弧开距随分闸速度的增加而单调下降。
李秀广   +7 more
doaj  

[Advances in research on organ-at-risk protection in pelvic tumor external beam radiotherapy]. [PDF]

open access: yesSheng Wu Yi Xue Gong Cheng Xue Za Zhi
Zeng F, Zhao W, He J, Chen D, Zhang H.
europepmc   +1 more source

[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

[Comparative study of the efficacy of subclavian space endoscopic approach and anterior cervical open surgery for the treatment of hyperparathyroidism]. [PDF]

open access: yesLin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi
Zhang J   +7 more
europepmc   +1 more source

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