Results 21 to 30 of about 2,922 (110)
Rare Metals, Volume 45, Issue 2, February 2026.ABSTRACT This study developed a FeSiAl@LMPGP composite material to address the demand for low‐frequency electromagnetic absorption. Through controllable heat treatment, FeSiAl particles and PbO nanoparticles self‐assembled into a high‐density Mott–Schottky heterointerface structure, which exhibited a significant built‐in electric field (BIEF) effect ...
Yuqi Wang +5 more
wiley +1 more source
Gaoya dianqi, 1984 一、基本原理 电磁场的数值分析法,可分为两大类:一类是先把待求电磁场问题提成偏微分方程和边界条件组成的定解问题,然后用差分法或有限元法求解;另一类则先用积分方程表示场源和场量之间的关系,再用矩量法或模拟电荷法等计算待求场量。 根据等效场源的观点,可把同一电场看成由单层形式分布的表面电荷或双层形式分布的表面电荷或点电荷、线电荷、面电荷等不同形式电荷分布的某种组合激发的。由于场源分布的不同,联系场量和场源的积分方程也不同。
陆忠亮, 肖衍明
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Rare Metals, Volume 45, Issue 2, February 2026.ABSTRACT Although lithium metal has been regarded as an ideal anode material for high‐energy‐density batteries, its practical applications remain hindered by many serious challenges. Three‐dimensional (3D) porous Cu current collectors demonstrate potential in ensuring uniform Li deposition.
Meng‐Qi Zhu +7 more
wiley +1 more source
Gaoya dianqi, 2010 为了揭示复合绝缘子在污秽潮湿环境中运行时的电场分布特性,笔者基于复合绝缘子的污闪理论,研究了绝缘污秽电场模型和计算方法,采用污层表面电导率和模拟导电污层的电阻层边界条件,应用有限元电场计算软件ElecNet对复合绝缘子污秽电场进行了交流时谐电场计算分析,比较了污层沿绝缘子轴向均匀分布和不均匀分布两种情况下的绝缘子电场分布,分析了污层表面电导率大小（即不同的污秽度）以及污层分布状态对绝缘子表面电场分布的影响。得出,当伞裙上表面电导率高于下表面时,沿泄漏路径的电位分布线性度降低 ...
王仲奕, 王琪, 陈青
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Rare Metals, Volume 45, Issue 1, January 2026.ABSTRACT Thermodynamic prediction‐driven phase‐field kinetic simulation, with experimental verification, is utilized to explore the high‐performance cobalt–nickel based (CoNi‐based) superalloys. The roles of aluminum (Al) in microstructural evolution and precipitation kinetics of ordered L12‐γ′ strengthened Co–Ni–xAl superalloys are revealed. The alloy
Kun‐Ning Niu +6 more
wiley +1 more source
Dianci bileiqi, 2008 利用ANSYS有限元分析软件,对几种典型不均匀污秽绝缘子的三维电场及电位分布进行了计算;依据污闪放电机理,对干燥带出现后电场分布的变化及其位置的影响进行了计算。分析了污秽绝缘子表面电阻模型对电场及电位分布的影响,结果表明:污秽不均匀性对绝缘子电场分布影响显著。连接铁帽、钢脚的湿污秽区能削弱高压电极附近场强;上下表面不均匀污秽对绝缘子电位分布影响显著,周向不均匀污秽影响较弱。干燥带上场强与产生的位置有关,呈"U"形变化趋势。
高博 +4 more
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New Directions for Child and Adolescent Development, Volume 2026, Issue 1, 2026.Background Working memory updating is crucial in bilingual children′s second language (L2) reading comprehension. A robust updating ability is a cognitive key for children to successfully master L2 reading comprehension. Objective This study is aimed at investigating the effect of updating ability on the L2 Chinese reading comprehension among Uyghur ...
Guangxin Li +3 more
wiley +1 more source
Gaoya dianqi, 2006 建立数学模型计算了复合绝缘子的沿面电场分布,利用有限元法计算了220kV线路复合绝缘子不安装均压环及安装不同形状尺寸均压环时沿面场强分布和电位分布。分析了均压环各因素变化对电场分布改善效果的影响,指出环径和罩深对端部电压分布改善效果明显,管径对电场分布改善效果好,根据各因素的综合影响,推荐了220kV复合绝缘子均压环的结构参数。
卫李静 +5 more
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Risk, Hazards &Crisis in Public Policy, Volume 16, Issue 3, September 2025.ABSTRACT The communication of political leaders towards voters has become increasingly important in modern democracies – even more so during crises. This article addresses the question of which factors influence the presence of heads of government during crisis communication?
Lore Hayek +2 more
wiley +1 more source
Gaoya dianqi, 2012 为分析72.5 kV真空灭弧室的电位分布和电场分布及其影响因素,建立了其轴对称有限元分析模型,计算了其电位分布和电场分布,研究了真空击穿的面积效应,并分析了主屏蔽罩的结构尺寸及多个屏蔽罩对真空灭弧室内部电场分布的影响。结果表明:真空灭弧室动静触头之间、触头和屏蔽罩之间的电位变化比较显著,灭弧室内部电场分布不均匀;随着触头间隙距离、触头半径及倒角部分曲率半径的增大,触头表面有效面积将增大,而灭弧室内部最大场强将有所减小;增大主屏蔽罩的半径和长度,可以使屏蔽罩两端的场强有所减小,在真空灭弧室内安装多个屏蔽罩,
邱志斌, 黄道春, 阮江军
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