Dianci bileiqi随着风机叶片持续增长，轮毂高度不断增加，机舱雷击事故愈发频繁。现今机舱材料多为玻璃纤维增强复合材料，直接遭受雷击时极易爆裂和燃烧，造成严重损伤。因此，选择5052铝合金、铝塑复合板和Q235B钢板3种具有良好耐火性能的材料进行模拟雷电流试验，结合有限元法分析3种材料雷击损伤特性以及瞬态温升特性，以此选择性能更好的材料保护机舱。结果表明：冲击电流作用下，各材料损伤均以电弧中心凹陷为主，其中5052铝合金损伤面积最大，其次是铝塑复合板，Q235B钢板损伤最小；当转移电荷超过43.08 C、作用积分超过4 ...
钟颖颖, 王媛媛, 赵信翔, 谢欢
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[Lipid metabolomics-based biomarker analysis of neonatal sepsis in serum and cerebrospinal fluid]. [PDF]
Se PuWu WX +5 more
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[Mechanism of silibinin in renal injury induced by periodontitis in mice]. [PDF]
Hua Xi Kou Qiang Yi Xue Za ZhiHu M +5 more
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Jianzhu Gangjiegou Jinzhan输电线路作为典型的风敏感结构，不仅分布范围广且极易遭受强风影响，强风作用易引发输电线路受损甚至发生倒塌事故，进而造成严重的经济损失。文中以强风致某输电塔倒塌实际案例为依托，首先建立了输电塔-线体系有限元模型；在风荷载模拟过程中，充分考虑脉动风速的随机性与空间相干性影响，进而生成了不同风速与风攻角下风荷载时程曲线。其次基于非线性动力分析方法，对输电塔进行了强风下输电塔-线体系振动响应分析，明确了输电塔位移、节间位移角及关键杆件的应力响应规律，并捕捉了输电塔的连续性失效过程。结果表明：受塔-线耦合效应的影响，
张国强 +7 more
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[Application of molecularly imprinted polymers-based sensors for determination of acute coronary syndrome biomarkers]. [PDF]
Se PuZhang Y +6 more
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[Gut-vascular axis in Kawasaki disease: short-chain fatty acid-mediated immune regulation and therapeutic targets]. [PDF]
Zhongguo Dang Dai Er Ke Za ZhiWang SD, Liu F.
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[Analysis of disease burden of fall-related fractures among elderly Chinese from 1990 to 2023]. [PDF]
Zhongguo Xiu Fu Chong Jian Wai Ke Za ZhiZhou Y +5 more
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[Arthroscopic-assisted closed reduction and internal fixation with absorbable screws for Hawkins type <b>Ⅱ</b> talar neck fractures]. [PDF]
Zhongguo Xiu Fu Chong Jian Wai Ke Za ZhiDong Z +6 more
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[Multicenter prospective study on the diagnostic value of syndecan-1 for necrotizing enterocolitis in preterm infants]. [PDF]
Zhongguo Dang Dai Er Ke Za ZhiYin XY, Zhao ZH, Wang Y, Cai N, Chen S.
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[Clinical Manifestations of Childhood Systemic Lupus Erythematosus-associated Acute Pancreatitis and Evaluation of the Efficacy of Plasma Exchange Combined With Glucocorticoids]. [PDF]
Sichuan Da Xue Xue Bao Yi Xue BanXiong L, Guo H.
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