Dianci bileiqi, 2016 为了提高输电线路防雷高效性,以普通并联间隙为基础提出一种基于冲击气流作用的灭弧防雷间隙。通过分析灭弧防雷间隙和绝缘子配合时的伏秒特性,研究了其截断电弧机制。建立链式电弧模型,并对电弧元进行受力分析,推导出电弧元各速度分量控制方程,得出其数值与电弧元长度无关,与冲击气流速度有关,且气流速度越大电弧运动越快越利于熄灭电弧。运用Ansys10.0软件对流体进行气流场仿真,利用高速摄像机拍摄电弧的变化过程,通过数字示波器记录电弧电压波形,仿真结果与试验结果表明:2.6 ms时冲击气流速度最大且稳定的作用于电弧 ...
李国栋, 王巨丰, 吴东
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[Study on simulated airflow dynamics of children with obstructive sleep apnea treated by different surgical methods]. [PDF]
Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za ZhiGuo W, Lei Q.
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[Association between serum uric acid and airflow obstruction based on the health-checkup population]. [PDF]
Beijing Da Xue Xue Bao Yi Xue BanZhou Q, Yang Q, Shi S, Li P, Sun F.
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Zhongshan Daxue xuebao. Yixue kexue ban, 2009 【目的】 用计算流体力学的方法研究功能性鼻窦内镜手术后鼻腔-鼻窦的气场参数特点65377; 【方法】 从30例健康青年人中,通过鼻内镜65380;鼻声反射测定仪及CT检查,严格筛选出一例研究对象,根据该入选对象的鼻腔CT影像资料,利用Fluent 6.1.22软件重建出正常鼻腔的数字模型,同时根据功能性鼻窦内镜手术的要求(切除钩突,开放筛窦65380;上颌窦和蝶窦)模拟出鼻内镜术后的鼻腔数字模型,再用Navier-Stokes方程对手术前后鼻腔气流的粘性运动进行数值计算 ...
doaj
[Evaluation of the accuracy of three-dimensional data acquisition from liquid- interference surfaces assisted by a scanner head with a compressed airflow system]. [PDF]
Beijing Da Xue Xue Bao Yi Xue BanXu X +9 more
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[Preparation of fluorescent carbon dots by flow-assisted melt polymerization for tetracycline detection in medical wastewater]. [PDF]
Se PuLiu ZW +8 more
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Gaoya dianqi, 1988 使用单Wollastone棱镜差分干涉仪对压气式变开距灭弧室模型里SF6中电弧的气流场状况进行了光学显示测量,诊断出电弧周围热边界区的形状、大小和变化特性,同时,就该热气流边界区对灭弧室气流特性以及电弧熄弧过程产生的影响做了分析。
doaj
[Determination of ethylene oxide and acetaldehyde in petrochemical exhaust based on thermal desorption- gas chromatography-mass spectrometry]. [PDF]
Se PuLi YJ.
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[Efficacy of sequential lateral position management in patients with chronic wounds and pulmonary complications: a prospective RCT]. [PDF]
Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za ZhiYin X, Chang F, Shao LJ, Cao J, Sha W.
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[Research progress on olfactory function and rehabilitation after total laryngectomy]. [PDF]
Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za ZhiZhu X +5 more
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