Results 11 to 20 of about 6,941 (128)
Rare Metals, EarlyView.ABSTRACT With the rapid development of the energy storage industry, aqueous zinc‐ion batteries (AZIBs) have attracted considerable attention in the field of energy storage because of their inherent advantages, thereby emerging as a promising research direction with significant potential.
Lingjiao Fu +8 more
wiley +1 more source
Rare Metals, EarlyView.ABSTRACT The transformative potential of gallium nitride high electron mobility transistors (GaN HEMTs) in advancing carbon‐neutral power systems remains bottlenecked by contact resistance (Rc) at the metal–semiconductor (M‐S) interface, a critical determinant of switching losses and frequency response.
Ji‐Zhou Zhang +8 more
wiley +1 more source
Rare Metals, EarlyView.ABSTRACT Early detection of thermal runaway (TR) is essential for lithium‐ion battery (LIB) safety, as unchecked TR risks catastrophic failures in energy storage systems. Gas‐based sensing offers a faster and more direct approach by detecting decomposition products at the molecular level.
Tianshui Liang +9 more
wiley +1 more source
Rare Metals, EarlyView.ABSTRACT Dielectric ceramics are popular for energy storage materials because of their rapid charge–discharge characteristics, whereas their low energy density and efficiency hinder their miniaturization and integration. In this work, the energy storage performance is significantly enhanced through introducing Al2O3 and TiO2 into the 0.425(Bi0.5Na0.5 ...
Qiansi Zhang +9 more
wiley +1 more source
Rare Metals, EarlyView.ABSTRACT Multi‐element Prussian blue analog (PBA) nanocomposites have attracted wide attention for their superior characteristics to single‐functional nanomaterials in extensive applications of diagnosis and therapy. In this study, a novel hollow nanocomposite was designed and fabricated by embedding S2− and Ag nanoparticles into a NiCuMnFe (PBA).
Tao Ji +7 more
wiley +1 more source
Gaoya dianqi, 2016 直流快速开关作为大容量直流供电系统安全运行的保证,其开断的分闸速度与开断的固有分闸时间直接影响到直流快速开关的快速性与合理可靠性。文中通过研究直流快速开关斥力机构工作原理,分析现有直流快速开关机构操动机构、保持机构、缓冲机构的结构形式与优缺点,总结出了直流快速开关斥力机构的2种操作机构,2种保持机构,4种缓冲机构的结构形式。根据研究成果给出直流快速开关机构设计的单线圈斥力+单线圈永磁保持以及双线圈斥力+碟簧保持两种典型方案,为直流快速开关机构的设计与试验提供了指导原则,也可为其他相关工程提供参考。
贾伟, 牛万宇, 王瑞, 左利博
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Gaoya dianqi, 2021 电网规模日趋扩大,电网短路水平不断攀升,安装限流器是一种经济可行的限流措施。文中基于大数据手段与行业通用的EMTP电磁暂态仿真方法,提出一种符合实际情况的快速开关型故障限流器电磁暂态仿真建模方法。给定时间步长,对快速开关式故障限流器内部元件的电磁暂态过程进行时域差分离散化,形成适用于EMTP电磁暂态仿真的伴随电路的形式。通过对大量的限流器的试验数据以及电力系统各种限流场景下的运行数据进行大数据特征分析,结合快速开关型故障限流器固有参数与结构特征,形成描述限流器电磁暂态过程的相关特征序列 ...
王俊生 +6 more
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ynthesis, Electrical Properties and Surface-enhanced Raman Spectroscopic Studies of Oligo(1,4-phenylene ethynylene)s Molecular Wires [PDF]
, 2011 分子电子学是科学研究的前沿和热点之一。分子电子学近年研究的重点是如何构建分子器件，如何表征、控制分子器件中电子的传输以及如何认知分子器件结构和功能之间的关系。金属/分子/金属结（分子结）是结构最基本、研究最广泛的分子器件单元。分子导线作为分子器件的重要组成和联系纽带，在分子电子学的发展中起着非常重要的作用。因此，分子导线的合成、组装及电子传输性能研究是当今化学、物理、生物及微电子工程学等领域里一个极具挑战性的方向。苯乙炔类(OPE)分子导线由于带有氧化还原基团（电活性基团）而具有独特的电学及光学特性 ...
戴可
core
Hobbyist preferences for pet freshwater turtles
Conservation Biology, EarlyView.Abstract The burgeoning pet trade is a primary threat to wild freshwater turtles worldwide. Although the risks from commercial exploitation of turtles have been discussed widely, there is little empirical research on preferences for pet turtles from a hobbyists’ perspective.
Jingjing Zhao +7 more
wiley +1 more source
Gaoya dianqi, 2022 电磁斥力机构由于其分闸速度快，分闸时间短和分闸时间分散性低等优势，配备于快速真空开关，可极大地压缩电网故障的切除时间，当前受到了众多研究者的关注。文中的目的是研究配于快速真空开关的电磁斥力机构的暂态动力学特性。文中提出了一种新型的全耦合仿真方法，该方法耦合了柔体动力学模块、外电路模块、运动方程、多体动力学模块、瞬变电磁场和疲劳分析模块的求解过程，可对电磁斥力机构的暂态动力学特性进行全面评估。通过仿真计算了各零部件在分合闸过程中的速度、行程曲线、放电电流、洛伦兹力和应力应变等动态特性 ...
王蕾 +7 more
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