Results 11 to 20 of about 5,524 (189)
Research on Lightning Performance and Protective Measures of ±800 kV UHVDC Power Transmission Line [PDF]
, 2023 [Introduction] Lightning strike is the primary cause of failures of ±800 kV UHVDC power transmission lines, and the lightning protection assessment of power transmission lines is critical to the safe and stable operation of the system.
Youjun GONG, Zhiwen HE, Ziwei YAN
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Acupuncture for Spasticity after Stroke: A Systematic Review and Meta-Analysis of Randomized Controlled Trials [PDF]
, 2015 The aim of this systematic review was to determine how effective acupuncture or electroacupuncture (acupuncture with electrical stimulation) is in treating poststroke patients with spasticity. We searched publications in Medline, EMBASE, and the Cochrane
Euiju Lee +6 more
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Research Progress of Galloping of Overhead Iced Transmission Lines [PDF]
, 2023 [Introduction] The galloping of transmission lines will lead to trip, worn hardware, broken insulator string, damaged tower-arm and other accidents. In serious cases, collapsed tower accidents may occur.
Guangyun MIN, Xiaohui LIU, Xin ZHAO
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Kongjian kexue xuebao, 2023 卫星散射计通过测量海表粗糙度反演全球海面风场。对于Ku波段散射计，海表粗糙不仅和海面风场相关，还受海表温度的二阶效应调制。定量研究了海表温度对中法海洋卫星（CFOSAT）散射计（CSCAT）反演风速和后向散射测量的影响。结果表明，CSCAT两种极化方式测量的后向散射系数都会受到海表温度的影响，但是垂直极化中低入射角（θ < 36°）测量的后向散射系数几乎不随温度变化。因此CSCAT的风速偏差也随海表温度的变化而变化，且随着入射角的增大和风速的减小，海表温度对风速偏差的影响程度增大 ...
赵 晓康 +3 more
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中西医结合护理, 2021 This paper introduced the current status of clinical application of Traditional Chinese Medicine (TCM) collapse therapy in the treatment of hemiplegia after stroke, and summarized the advance of TCM collapse therapy and its clinical application with ...
ZHANG Nannan (张楠楠) +4 more
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Dianci bileiqi, 2023 台风作为一种非良态的旋转风，常导致近海区域500 kV输电线路转角塔跳线发生风偏跳闸。本研究首次提出一种变径结构的500 kV转角塔跳线串用固定式防风偏复合绝缘子，对绝缘子技术参数、结构型式、材料选择、连接金具及附件、生产工艺等方面进行系统分析，通过建立有限元模型对防风偏复合绝缘子应力荷载特性进行仿真，对试品进行了机械及电气性能试验，证明产品的可靠性。考虑防风偏绝缘子对横担端部产生过大荷载的不利因素，提出了在挂线角钢中部增设两榀支撑桁架的优化布置型式，调整挂点传力途径、增强挂线角钢抗扭能力。研究表明 ...
徐福聪 +6 more
doaj
From demonstrative to definite and beyond: the case of nage in spoken Taiwan Mandarin
Faits de Langues, 2014 When demonstrative pronouns undergo grammaticalization, they have regularly been shown to evolve into definite or specific articles (Lehmann 2002, De Mulder & Carlier 2001). In a synchronic perspective, it has also been shown that for some languages, demonstrative determiners are not restricted to deictic or anaphoric functions, but may extend their ...
openaire +3 more sources
Experimental Study on the Influence of Air Side Equalizing Device on the Flow Heat Transfer Characteristics of Cooling Delta Unit [PDF]
For the cooling delta unit, the basic heat transfer element of the cold end of the indirect air-cooling system, the wind speed, air temperature, and wall temperature measuring points were arranged laterally along the heat transfer bundle in the cooling ...
FENG Haibo +7 more
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, 2016 目的:观察针刺大都穴对中风偏瘫下肢的影响及临床疗效。方法:将72例患者随机分成两组:治疗组37例采用基础穴位配合大都穴治疗;对照组35例采用基础穴位结合神经肌肉电刺激仪治疗,治疗1个月后比较两组的临床疗效。结果:通过下肢Fugl-Meyer量表评分比较,治疗组均优于对照组 ...
吴文裕, 吴明霞, 林振原
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Evolution of research on global amphibian declines
Conservation Biology, Volume 40, Issue 1, February 2026.Abstract In the late 1980s, the scientific community became aware of severe, enigmatic amphibian population declines. These declines triggered a wave of research focused on quantifying their extent and identifying key drivers. We used text‐analysis techniques, including topic modeling and geoparsing, to examine the evolution of research focused on ...
Jordann Crawford‐Ash +6 more
wiley +1 more source