Results 21 to 30 of about 1,430,791 (187)
Rare Metals, Volume 45, Issue 5, May 2026.ABSTRACT The rapid expansion of data‐intensive applications has highlighted the fundamental limitations of traditional CMOS‐based von Neumann architectures, particularly in terms of power efficiency, latency, and flexibility. Spin logic devices utilizing spin–orbit torque (SOT) present a promising pathway for nonvolatile, low‐power, and in‐memory ...
Ke‐Yi Wu +5 more
wiley +1 more source
Dianci bileiqi, 2013 我国冬季混合凇冰灾频繁并严重威胁输电线路安全运行;覆冰后的导线表面会形成雨凇和雾凇的混合体,尖锐的冰柱会畸变冰面电场分布,进而使导线表面场强增大;为研究混合凇覆冰对导线表面场强的影响规律,在小型人工气候室内完成了对LGJ-185/25绞线混合凇覆冰后的参数测量,并根据混合凇形态建立电场分布模型,利用有限元法对导线覆冰后的表面场强进行计算。结果表明:混合凇形成的冰柱尖端会增大导线表面场强;随着覆冰程度的增加,导线表面场强会继续增大但速度却逐渐减慢并最终趋于饱和 ...
李长明 +5 more
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Dianci bileiqi, 2023 本研究综合声成像技术和日盲紫外成像技术的各自优势，提出了一种针对电力设备外绝缘状态声-光协同可视化诊断方法。首先提出并开发了基于多重信号分类算法和单螺旋传感阵列的高聚焦精度电晕放电超声定位可视化方法；同时，在声成像有效视场内引入日盲紫外成像旁路。考虑环境噪声的对检测效果的影响，提出了一种可变权重的声-光协同可视化信息融合方法，通过声学强度点阵、紫外强度点阵和可见光像素视场的空间信息谱融合，实现了超声-紫外可视化诊断。在此基础上，进行了定位算法优化、视场配准及定位误差评估研究。测试表明 ...
杨代勇 +5 more
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Rare Metals, Volume 45, Issue 5, May 2026.ABSTRACT The Janus structure of ZnIn2S4 (ZIS) endows it with an intrinsic built‐in electric field that effectively drives photogenerated charge separation. However, this very structure also renders the predominant (001) facet (In–S termination) catalytically inert due to its low electron density and high energy barrier for the hydrogen evolution ...
Qingao Zhou +8 more
wiley +1 more source
Gaoya dianqi, 2006 线路附近地面的场分布是输电线路电磁环境中的一个重要指标。首先验证了半经验公式法的有效性。然后使用该方法分析了极导线水平排列的±800 kV直流线路合成场强、标称场强和离子流密度的影响因素和变化规律。研究表明地面,标称电场强度受线路对地高度的影响很大,而合成电场强度和离子流密度除受导线对地高度的影响较大外,受导线直径和分裂数的影响也很大。
黎小林, 张波, 王琦, 何金良
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Rare Metals, Volume 45, Issue 5, May 2026.ABSTRACT Aqueous zinc‐ion batteries are plagued by anode challenges such as dendrite growth and corrosion, which stem from intrinsic surface heterogeneity. Although constructing a homogeneous interfacial layer is a promising strategy, conventional electrolyte additives often suffer from incomplete or unstable coverage.
Ke Huang +6 more
wiley +1 more source
Gaoya dianqi, 2018 采用质量作用定律法计算压强0.12.0 MPa、温度40 000 K到300 K下SF6等离子体组分体积分数,分析热态SF6介质（3 500 K到300 K）的成分构成及其变化过程。采用两项近似法求解玻尔兹曼方程,计算不同折合电场下热态SF6介质中电子能量分布函数,分析不同碰撞过程中各微观粒子的折合电离系数和折合吸附系数,得到热态SF6介质的折合击穿场强,通过300 K下SF6气体击穿场强实验值验证了计算方法的准确性。研究表明:弧后热态SF6介质绝缘强度恢复过程中,温度下降到3 500 K到2 300 ...
林莘 +7 more
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Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT Piezocatalytic technology utilizes mechanical strain or stress‐induced piezoelectric phenomena to produce robust internal electric fields, markedly improving the separation efficiency of e−‐h+ pairs. This method has emerged as a focal point in catalysis by removing reliance on conventional light or electrical energy via its mechanical‐to ...
Yue Zhou +5 more
wiley +1 more source
Success of restoration strategies in preventing extirpation of 2 critically endangered coral species
Conservation Biology, Volume 40, Issue 2, April 2026.Abstract An unprecedented marine heatwave in 2023 caused widespread coral bleaching and mortality throughout the Caribbean. In the Florida Keys (USA), 2 foundation species, elkhorn coral (Acropora palmata) and staghorn coral (Acropora cervicornis), were severely affected.
Erinn M. Muller +29 more
wiley +1 more source
Gaoya dianqi, 2012 高压电抗器在合成回路中为开断电流后的断路器提供恢复电压,断路器动作导致电路参数的瞬时变化,使电路中的电流和电压波形在高压电抗器和电容元件之间产生振荡,由此产生的过电压将威胁合成回路的安全运行。笔者根据试验单位提供的合成回路及具体运行工况,利用PSCAD对其运行回路进行电路仿真,得到相应的电流和电压波形,并以此为边界条件,利用ANSYS对高压电抗器进行仿真得到空间电场强度,并提出合适的结构参数来改善电抗器局部电场分布。结果表明:电路仿真在考虑电抗器杂散电容后,电流和电压波形出现极大振荡 ...
杜炜 +4 more
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