Results 41 to 50 of about 8,813 (168)
Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT The construction of p–n homojunctions represents a promising strategy for effective solar‐driven photocatalytic hydrogen evolution, owing to their inherent advantages of superior lattice matching and minimized charge transfer resistance. However, this approach remains largely unexplored.
Yueqiang Lin +6 more
wiley +1 more source
Dianci bileiqi, 2016 针对大气电场下金属尖端电晕放电阈值的问题,通过理论分析与试验相结合的方法,测量了电晕放电阈值电压并利用ANSOFT Maxwell有限元软件对阈值电场的计算,研究了不同金属、高度、环境以及有无尖端时金属尖端电晕放电电压阈值和电场阈值的变化规律,得出以下结论:大气电场下,电导率不同的铁、铝、铜,电晕放电电压阈值和电场阈值大小与电导率关系不大;同温同湿,同高度金属棒的电晕放电电压阈值与电场阈值大小与尖端高度是负相关的;同温同湿,金属棒高度与电晕放电电压阈值和电场阈值是负相关的 ...
周雪会, 陈登义, 陈则煌
doaj
Translation Report of Wind Energy Handbook II: the Functional Equivalence Approach [PDF]
, 2016 近代以来，科学技术取得了迅猛发展，并且各个学科的研究也得到不断深化，国家与国家之间科技层面的交流也越来越频繁，因此，随着需求量的增加，科技英语（EnglishforScienceandTechnology，EST）翻译也变得尤为重要。本翻译报告就科技文本中的《风能手册》第二版为例，通过功能对等理论来指导汉译的翻译实践。 本翻译报告论证了功能对等翻译适用于科技英语翻译的可行性后，分析了《风能手册》第二版的词汇特色、句式特征等特点。同时运用功能对等理论来指导《风能手册》第二版的翻译实践 ...
李晗
core
Accelerating Just Energy Transitions in Brazil: Pathways for Social Development
Latin American Policy, Volume 17, Issue 1, March 2026.ABSTRACT This critical article analyzes energy poverty in Brazil from the theoretical perspective of distributive justice, proposing the implementation of a new social regulation called Contribution to Social Development. The goal is to support the process of a just energy transition leading to a broader debate on energy planning and social issues ...
Marcio Giannini Pereira +5 more
wiley +1 more source
Studies on optical properties of tip-enhanced Raman/fluorescence system [PDF]
, 2015 针尖增强拉曼光谱（Tip-enhancedRamanspectroscopy，TERS）和针尖增强荧光（Tip-enhancedfluorescence，TEF）具有极高的检测灵敏度和空间分辨率，已经成为表面科学研究中强大的表征手段。尽管TERS及TEF在近年取得了重大的进步，但依然存在许多重大的科学问题尚待解决。如TERS实验中实现的亚纳米空间分辨理论机制已不能用常规的局域电场增强理论来加以解释;进展迅速的STM-TERS技术受到样品和基底导电的严重限制而急需发展普适性更广泛的针尖增强拉曼体系 ...
孟令雁
core
Review of Policy Research, Volume 43, Issue 2, March 2026.ABSTRACT The future of work (FoW), that is, how new technologies from automation to artificial intelligence affect the workplace, has become such a salient topic that its framing matters for the evolution of important policy areas from social protection to market and labor regulation.
Achim Kemmerling, Viddy Ranawijaya
wiley +1 more source
基于有限元方法的35 kV干式空心并联电抗器匝间电场分布研究
Gaoya dianqi, 2018 深入开展35 k V干式空心电抗器匝间电场分布研究,对35 k V干式空心电抗器匝间放电故障分析和提高35 k V干式空心电抗器的可靠运行具有重要意义。为此,文中基于有限元仿真计算开展了35 k V干式空心电抗器匝间电场分布研究。研究结果表明:35 k V干式空心电抗器外层支路匝间电场强度大于内层支路的匝间电场强度,且由于35 k V干式空心电抗器电磁场分布的特殊性导致了每层支路中端部的匝间电场强度小于中间部分的匝间电场强度;10 k Hz下的匝间电压比与50 Hz下的匝间电压比近似相同。
彭庆军 +6 more
doaj
Gaoya dianqi, 2020 电缆终端电场分布优化研究是海底电缆安全运行和试验迫切需要解决的问题,为提高其运行的安全性与可靠性,可对电缆终端电场分布进行优化。文中基于有限元法对海底电缆终端电场进行多物理场耦合研究分析,综合考虑终端实际运行环境及实际生产情况,采用电流—温度—电压仿真法对电缆主绝缘及应力锥绝缘部分材料进行优化分析,同时对应力锥金属部分曲率及应力锥金属与绝缘部分比例分配进行优化,寻求终端电场分布的最优化。结果表明:采用与电场、温度相关的非线性材料对终端电场分布很大改善,应力交界点电场强度降低幅度为25.83 ...
谢晨 +5 more
doaj
Electro-optic modulation of AlGaN in deep ultraviolet [PDF]
, 2016 深紫外非线性光学材料在光信息处理和高速光通讯等领域具有广泛的应用前景，发展适宜工作在深紫外波段的新型非线性光学材料成为国际学术界和产业界研发的热点。AlGaN基半导体凭借宽带隙带来的信道容量大、纤锌矿晶格排列缺乏反演对称性造成的非线性光学效应、以及作为半导体可控制对n型p型的光电集成等优势，成为理想的深紫外波段非线性光学材料，在电光调制和电光开关等非线性光学器件方面极具应用潜力。本文理论设计并生长了高Al组分的AlxGa1-xN/GaN超晶格结构，通过椭圆偏振光谱表征测算AlxGa1-xN ...
吴小璇
core
Rare Metals, Volume 45, Issue 2, February 2026.ABSTRACT The poor Zn chemistry of Zn metal anode and sluggish reaction kinetics of cathodes at high mass loadings are two crucial issues for hindering the application of aqueous Zn‐ion batteries (AZIBs). Herein, the hierarchical porous N‐doped carbon fibers (HPNCFs) were proposed to simultaneously optimize the reversibility of Zn plating/stripping of ...
Song Yang +6 more
wiley +1 more source