Gaoya dianqi西藏地区地处高海拔、大风环境，近年来该地区输电线路频发风偏闪络等事故，且常见以体型不均匀的“酒杯型”输电塔相关线路较为频发。鉴于此，文中开展西藏输电线路工程的“酒杯型”塔—线体系风致振动及风振系数设计研究，旨在为相关输电线路合理抗风设计提供必要理论基础。研究过程和方法为：以西藏实际发生故障的“酒杯型”输电塔线路段为研究对象，采用输电铁塔及塔线体系的风致振动仿真分析方法，即利用Davenport风功率谱和AR法模型方法模拟脉动风荷载并施加于输电塔线体系有限元模型 ...
安有斌 +6 more
doaj
[Cessation intention and behavior of e-cigarettes and associated factors among 18-44 Chinese adults: Based on protection motivation theory]. [PDF]
Beijing Da Xue Xue Bao Yi Xue BanZhang X +5 more
europepmc +1 more source
[Clinical features and prognosis of influenza-associated encephalopathy in children]. [PDF]
Zhongguo Dang Dai Er Ke Za ZhiLin WW, Song XJ, Jiang L.
europepmc +1 more source
[Recent advances on environmental occurrence， risk and analytical methodologies of synthetic phenolic antioxidants]. [PDF]
Se PuLiu SS +6 more
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[<i>Songjie</i> Formula alleviates rheumatoid arthritis in rats with wind-cold-dampness syndrome by regulating Th17/Treg immune balance]. [PDF]
Nan Fang Yi Ke Da Xue Xue BaoMei X +5 more
europepmc +1 more source
[Chemotherapy-related central nervous system injury in children with acute lymphoblastic leukemia: research progress]. [PDF]
Zhongguo Dang Dai Er Ke Za ZhiWang L +5 more
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Jianzhu Gangjiegou Jinzhan下击暴流作为一种局部强对流天气，是导致输电塔发生破坏的主要原因之一。为研究输电塔在下击暴流作用下的相关参数对输电塔风振系数的影响和等效静力风荷载分布，首先建立输电塔有限元模型并进行动力特性分析：建立冲击射流风场模型获取平均风速时程，使用谐波合成法模拟脉动风速时程，叠加得到下击暴流总风速时程；采用频域方法分析结构阻尼比、峰值因子以及脉动风速谱类型等参数对输电塔风振系数的影响程度及规律。然后，介绍并利用三种不同等效静力风荷载计算方法分析输电塔在下击暴流作用下的等效静力风荷载分布 ...
刘怡辰, 钟永力, 李顺, 晏致涛
doaj
[Recent advances in application of venous superdrainage in perforator flaps]. [PDF]
Zhongguo Xiu Fu Chong Jian Wai Ke Za ZhiHe A, Ba L, Wei Z.
europepmc +1 more source
[Clinical strategies and indication expansion of interventional ultrasonography ablative therapy for hepatic tumors]. [PDF]
Zhonghua Gan Zang Bing Za ZhiLiang YG, Wang HY, Zhao QY, Jiang TA.
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[Wiskott-Aldrich syndrome with follicular lymphoma: a case report]. [PDF]
Zhonghua Xue Ye Xue Za ZhiZhang Y +5 more
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