Results 11 to 20 of about 1,885 (119)
Discharge characteristics and discharge simulation model of long air gaps containing a floating conductor [PDF]
, 2022 Long air gaps containing a floating conductor are common insulation types in power grids. During the transmission line live-line work, the process of lineman entering the transmission line air gap constitutes a live-line work combined air gap, which is a
Gao, Jiachen <1995>
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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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清洁能源科学与技术, 2023 由于近场机制下倏逝波的耦合效应，近场辐射传热（Near-field radiation heat transfer, NFRHT）已被证明可以超过黑体极限，为主动热控制、热光伏和纳米级成像等应用开辟了新的道路。尽管对NFRHT的理论研究已经进行了详尽的研究，但由于在纳米尺度上控制间隙距离的挑战，NFRHT的实验测量一直停滞不前。直到21世纪，得益于微纳制造技术和材料科学的进步，NFRHT的纳米控制和测量才取得了显着进展。本综述对NFRHT的实验发展进行了深入讨论。根据发射器和接收器的结构 ...
张纪红 +5 more
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Gaoya dianqi, 2021 为了解气体火花间隙开关的自击穿性能,文中从自击穿实验角度着手,对电场不均匀度进行了仿真计算,测量了两电极气体火花间隙开关不同间隙距离下的自击穿电压,通过计算相对极差和变异系数来分析自击穿电压的稳定性并进行韦布尔检验。实验结果表明,自击穿电压随间隙距离的增大而增大并近似线性关系;间隙距离是影响自击穿电压稳定性的重要因素,自击穿电压的稳定性随间隙距离的增大而增大。从自击穿稳定性角度来看,可以适当增大气体火花间隙开关的电极之间间隙距离来增强自击穿电压稳定性。
满林坤 +5 more
doaj
Ignition mechanism of methane by 5G electromagnetic waves and power safety thresholds in underground coal mines [PDF]
5G technology, with its advantages of high bandwidth, low latency, and extensive connectivity, has shown great potential in driving the intelligent transformation of the coal mining industry.
Haijian CHEN +6 more
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Expert consensus on digital intraoral scanning technology [PDF]
Digital intraoral scanning is a hot topic in the field of oral digital technology. In recent years, digital intraoral scanning has gradually become the mainstream technology in orthodontics, prosthodontics, and implant dentistry. The precision of digital
YOU Jie, YAN Wenjuan, LIN Liting, GU Wenzhen, HOU Yarong, XIAO Wei, YAO Hui, LI Yaner, MA Lihui, ZHAO Ruini, QIU Junqi, LIU Jianzhang, ZHOU Yi
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Zhejiang Daxue xuebao. Lixue ban, 2019 青海湖作为我国内陆最大的咸水湖，针对其水域的研究具有重要的环境意义。采集青海湖金沙湾沿岸9个间隙水样，2 个井水样，1 个湖水样以及2 个降水样。调查研究了青海湖金沙湾间隙水溶解态镭同位素活度的空间分布情况，发现间隙水中223Ra 和224Ra 的平均活度为3.5 dpm/100 L 和162.6 dpm/100 L，均高于井水和湖水。通过对沿湖岸线水平向和垂直向的间隙水镭同位素活度分布研究发现，金沙湾间隙水镭同位素活度随离岸距离的增大而增大、随深度的加深而减小 ...
LIULei(刘磊) +5 more
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Preparation of Hydrogel Films Loaded with Curcumin-Zinc Oxide Nanoparticles and Its Preservation Effect on Low-temperature Chilled Chicken Meat [PDF]
This study aimed to extend the shelf-life of chilled chicken meat by preparing curcumin-zinc oxide nanoparticles (CUR-ZnO NPs) using curcumin and zinc oxide.
Long DU +5 more
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Characteristics of electric field strengthening between coal-mineral particles under microwave irradiation [PDF]
Both thermal and non-thermal effects induced by microwave radiation can produce a series of effects on coal and rock, and microwave induced discharge is one of the phenomena of microwave non-thermal effects.
Fuqiang YANG +5 more
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Rare Metals, Volume 43, Issue 7, Page 3019-3031, July 2024.Graphical abstract AbstractTwo‐dimensional MoSe2 is a promising candidate for lithium‐ion battery anodes. However, its conductivity and lithium storage volumetric effect still need to be optimized. In this work, W‐doped MoSe2/rGO paper‐like microspheres are successfully prepared through ultrasonic spray pyrolysis, achieving optimization at both the ...
Wei Wang +9 more
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