Results 41 to 50 of about 408 (99)
[Assessment of imaging performance of digital breast tomosynthesis based on systematic simulation]. [PDF]
Nan Fang Yi Ke Da Xue Xue Bao, 2021 Deng Y +5 more
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Gaoya dianqi, 1993 计算了手车结构中外部接线对真空灭弧室弧柱的电动力,认为横磁触头结构真空断路器在开断大电流时,外部接线产生的电动力是导致开断失败的主要原因。建议尽量缩短真空灭弧室两端径向引出线的长度,以减少外部接线对灭弧室开断能力的影响。
谭燕, 何维忠
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[Study on the effect of small alcohol on lipid hydration and liposome formation]. [PDF]
Sheng Wu Yi Xue Gong Cheng Xue Za Zhi, 2022 Jiang L, Wang Q, Hu N, Yang J.
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Gaoya dianqi, 2014 随着真空开关的广泛应用,对真空电弧的研究愈显重要。由于真空电弧等离子体并未处于局部热力学平衡态,且磁场和触头起关键作用,真空开关开断过程的数值仿真和SF6开关相比尚不成熟,但近年来随着真空电弧理论的不断完善和计算机计算能力的大幅提升而获得了迅速发展。笔者综述了磁流体动力学（MHD）模型、粒子模拟结合蒙特卡罗碰撞（PIC-MCC）方法、混合模型、阳极热模型和解析模型在真空开关电弧开断过程不同阶段数值仿真中的应用现状,并提出了电流零区、电极材料、极间等离子体不同区域相互作用、PIC-MCC加速 ...
舒胜文, 黄道春, 阮江军
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[Clinical characteristics and analysis of risk factors for heart injuries in 55 patients with lightning injury on plateau in Tibet Autonomous Region]. [PDF]
Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi, 2023 Yang SS, Zhao YY, Luo ZJ, He C, Li YH.
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[Impact of multi-leaf collimator positioning accuracy on quality control of volumetric modulation arc therapy plan for cervical cancer treated with Elekta linear accelerator]. [PDF]
Nan Fang Yi Ke Da Xue Xue Bao, 2022 Liang J, Yu F, Zhu J, Song T.
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Gaoya dianqi, 1999 与传统的纵向磁场与真空电弧作用的认识不同,提出了在真空灭弧室的触头间加入非均匀分布纵向磁场来抑制真空电弧在大电流下的收缩,从而提高其开断能力这一思路.设计了一种相应的电极结构,并通过计算和实验分析了它的纵向磁场分布及参数的影响.
付军 +4 more
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"Mysterious veil" between the blood group system and pathogens. [PDF]
Zhong Nan Da Xue Xue Bao Yi Xue Ban, 2021 Ou C, Tian Y, Liang K, He J.
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Gaoya dianqi, 1988 真空电弧弧后电流的测量及其测量结果分析,并采用了两种不同电极材料和两种不同结构型式的国产真空灭弧室作为试样来阐述对弧后电流的影响,最后根据这些试验结果来解释弧后电流的特性,
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Expert consensus on the prevention and first-aid management of burns in children. [PDF]
Zhongguo Dang Dai Er Ke Za Zhi, 2021 Pediatric Disaster Branch of Chinese Pediatric Society of Chinese Medical Association +2 more
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