Results 31 to 40 of about 5,764 (119)
Gaoya dianqi, 2012 由于绝缘材料的电阻率具有非线性和各向异性,故在计算换流变压器阀侧绕组直流电场时需要考虑到绝缘材料的非线性和正交各向异性。笔者采用ANSYS二次开发技术,计算了在考虑绝缘材料电阻率随场强和温度变化情况下的非线性直流电场及非线性各向异性直流电场。计算结果表明,在考虑绝缘材料电阻率非线性和各向异性的情况下,电场分布与不考虑这些条件下的分布有很大的不同。因此,换流变压器阀侧绕组的直流电场应该按非线性各向异性场计算。
李晓辉 +3 more
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Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT Semiconductor photocatalysis represents a pivotal frontier in the quest for sustainable energy and environmental remediation. Among the diverse catalytic materials, Bismuth Oxychloride (BiOCl) has emerged as a particularly promising candidate due to its unique layered structure, featuring [Bi2O2]2+ layers intertwined with halogen ions, which ...
Liu Han +5 more
wiley +1 more source
Gaoya dianqi, 2020 针对KYN28A—12型交流金属封闭开关设备温升超标问题,基于温升试验结果分析了影响开关柜温升的因素,并提出优化设计方法和解决措施。通过三维建模及有限元分析,得到开关柜三维温度场和流场的分析结果,确定了以改善开关柜触头盒内部流场作为降低温升的主要措施,并设计了一种改善开关柜内流场分布的导流装置。经试验,温升符合有关标准要求,并验证了提升触头盒内部流场可以有效降低开关柜有关位置的温升。
武兴坛 +4 more
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Structural Modulation of Magnetic Softness in Fe‐Based Amorphous Alloys via Pulse Current Training
Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT Fe‐based amorphous alloys, despite their intrinsically low magnetocrystalline anisotropy, suffer from quasi‐dislocation dipoles and localized stress fields that impede domain‐wall motion and increase coercivity. Here, we introduce pulse current training (PCT) as an energy‐efficient technique to overcome these limitations in a Fe76Si9B10P5 ...
Shumin Ye +13 more
wiley +1 more source
Dianci bileiqi, 2013 特高压换流变阀侧套管承受混合电压,电场分布十分复杂。采用ANSYS软件仿真分析了特高压换流变阀侧套管在极性反转下的电场分布情况。计算得到了主要介质达到直流稳态的时间常数和最大场强值以及沿伞群的电场分布。计算结果表明:直流稳态后反转的电场要高于极性反转试验中的电场。在介质的分界处,伞群电场有最大值。分析结果为换流变压器阀侧套管的极性反转试验以及设计制作提供了科学的依据。
杜清全 +5 more
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When Public Health Becomes the Weapon: Current and Prospective Consequences of the Genocide in Gaza
World Medical &Health Policy, Volume 18, Issue 2, June 2026.ABSTRACT Catastrophic humanitarian conditions during the 2023–2025 genocide in Gaza have caused a public health crisis of exceptional magnitude. This article summarizes key short‐ and long‐term health consequences for Gaza's civilian population and outlines priorities for recovery.
Therese Alexandra Evald +19 more
wiley +1 more source
A more‐than‐human political ecology of Indonesian songbird trade
Conservation Biology, Volume 40, Issue 3, June 2026.Abstract Since its inception, conservation science has considered wildlife trade a problem. In focusing on conservation outcomes, conservationists almost completely ignore the welfare of traded animals and plants and the harms they endure. We developed a political ecology approach that incorporates the interconnectedness of people with animals and ...
Sicily Fiennes +9 more
wiley +1 more source
Gaoya dianqi, 2020 文中以1 100 kV GIL管廊母线通风散热为研究对象,采用流体力学商用计算软件Fluent建立了流—热耦合场数学模型;运用有限元法对流—热耦合场进行三维数值计算,得到了管廊内流体场与温度场分布规律。研究结果可为GIL管廊母线的通风散热设计提供参考。
王振芹, 曹正第, 王娜
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Gaoya dianqi, 2022 为了研究集群电缆敷设方式、回路间距、回路数以及排列方式对交流集群电缆直流载流量的影响，以10 kV交流配电网中广泛使用的三芯交联聚乙烯（XLPE）电缆为例，通过有限元仿真软件建立集群电缆的温度场和流场耦合仿真模型，得到了直埋敷设、排管敷设和沟槽敷设下集群电缆以双极式直流拓扑结构运行时的直流载流量、温度分布和流场分布。结果表明：随着回路间距和回路数的增大，集群电缆载流量的变化速率逐渐减小。直埋敷设下集群电缆之间的热场相互作用最大，而沟槽敷设下集群电缆之间的热场相互作用最小 ...
王启隆 +3 more
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Gaoya dianqi, 2018 新松换流站是目前世界上海拔最高、抗震设防要求最高的特高压换流站,直流场设备抗震设计与考核是整个换流站抗震设计核心内容。首先介绍了直流场设备抗震解耦设计的基本思路,分析了直流场主要设备的结构特征和抗震薄弱环节,对直流场极线设备分成了若干较为独立的耦联回路;其次,提出了换流站直流场设备的抗震设防水平及主要的地震动参数。通过采取选用复合材料、优化支架及设备结构、创新设备连接导体及金具、采用隔震减震等抗震新技术,可有效改善换流站直流场主要电气设备的抗震性能 ...
孙帮新, 曹枚根
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