Results 21 to 30 of about 357,245 (155)
Gaoya dianqi, 2021 通过试验研究了影响静电除尘器捕集效率的因素,分析了微粒粒径、电场强度、气流流速、电离电压、电离电极洁净程度对捕集效率的影响规律。结果表明,静电除尘器中的微粒捕集效率随粒径的增大而提高;同样的带电微粒,随电场强度增大,其捕集效率增加;随着气流速度加大,捕集效率变小;随电离电压增大,微粒所带电荷增加,捕集效率亦增大;气流通过电离区时,会有极少的微粒被捕集到电离电极表面,微粒自身有一定的电阻率,导致放电电流下降,大多数微粒荷电减少,除尘器捕集效率降低。采用Deutsch模型估算试验中带电微粒的迁移速度 ...
庞海龙 +4 more
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全球能源互联网, 2019 全钒液流电池是具有良好应用前景的大规模储能技术之一，是解决电网调峰调频、间歇性可再生能源消纳等问题的有效手段。使用MATLAB基于自放电效应建立了全钒液流电池的电化学模型，研究了电池的充/放电形式和电解液流量对电池性能的影响规律，进而建立了微网负荷的优化调度模型，并提出了一种微网中逐时响应需求侧负荷波动的最优电解液流量计算流程和优化运行方法。研究结果表明：全钒液流电池的过电势损耗与电流正相关；随着电池的电解液流量从0.024立方米/小时增加至0.288 立方米/小时，泵功相应由0.027 W增加至0 ...
倪经纬, 李明佳
doaj +1 more source
Rare Metals, Volume 45, Issue 10, October 2026.ABSTRACT Photocatalytic hydrogen peroxide (H2O2) production from water and oxygen driven by solar energy represents a highly promising green and sustainable strategy. Herein, lignin‐derived carbon quantum dots (LCDs) were strategically introduced at the heterojunction between a Bi‐based metal organic framework (Bi‐MOF) and ZnIn2S4 (ZIS).
Wanpeng Sun +8 more
wiley +1 more source
, 1992 本文指出，许多电动力学教科书中所给出的导体（本文指金属导体）中自由体电荷的衰减规律不适用于良导体，原因是所涉及的电场变化频率远比电子与晶格的碰撞频率为大，因而无色散欧姆定律实际并不适用．本文采用欧姆定律的推广形式导出较普遍的结论；并指出，在讨论定频的低频电磁波与导体的相互作用问题时，可直接证明电荷密度的实频分量■（ω实）为零，而不必涉及σ（ｔ）的衰减规律．此外，本文还指出电荷衰减过程中不会出现电子的“超光速运动 ...
朱如曾
core +2 more sources
Rare Metals, Volume 45, Issue 10, October 2026.ABSTRACT The central challenge in photocatalysis is to direct photogenerated electrons and holes toward the simultaneous and efficient production of hydrogen and value‐added chemicals. To address the pronounced charge recombination and sluggish surface kinetics of ZnIn2S4 nanoflowers, we construct a ternary photocatalyst synergistically decorated with ...
Xue Men, Haiou Liang, Man Zhang, Jie Bai
wiley +1 more source
Dianci bileiqi, 2021 ZnO压敏电阻是电子和信息化领域重要的过电压防护器件,对电子与通信系统的运行安全有着至关重要的作用。本研究基于压敏电阻直流老化特性实验平台,开展了热电应力下ZnO压敏电阻温度特性、荷电率特性以及长期直流电压下老化特性的变化规律研究。实验与分析结果证明:1)在电应力与热应力作用下,ZnO压敏电阻的泄漏电流和功率损耗随着荷电率增大而增大;2)同一型号压敏电阻在同温度(115℃),不同荷电率下两组直流老化实验,泄漏电流曲线经历了快速上升、缓慢下降至平稳、激增3个变化阶段,两组老化时间存在较大差异; 3 ...
黄海博, 孙伟, 万翔, 姚学玲
doaj
Rare Metals, Volume 45, Issue 10, October 2026.ABSTRACT Microstructural characterization of Li0.32La0.56Fe0.01Ti0.94Sb0.06O3 (LLFeTSO) using AC‐TEM revealed that Fe3+/Sb3+ ion co‐doping induces the migration of lattice oxygen to grain boundaries (GBs), enhancing GB conductivity. However, the atomic arrangement at the GBs remains highly ordered and lacks sufficient cation vacancy carriers.
Binxuan Jiang +8 more
wiley +1 more source
Rare Metals, Volume 45, Issue 10, October 2026.ABSTRACT Regulating oxygen vacancies (Ov) in SnO2 to facilitate high‐efficiency carbon dioxide electroreduction reduction reaction (CO2RR) is still a significant challenge. Therefore, a strategy based on Ag‐induced interfacial electron transfer was proposed to modulate Ov in SnO2 for CO2 electroreduction. The prepared Ag/SnO2 with an optimal Ov content
Haoyu Qi +7 more
wiley +1 more source
Rare Metals, Volume 45, Issue 10, October 2026.ABSTRACT Biomass‐based hydrogels are widely regarded as ideal substrates for self‐powered wearable sensors. However, the practical applications of hydrogels are commonly limited by their inherent low strength and toughness, which restrict their capacity to withstand repeated stretching, bending and other mechanical loads arising from human motion in ...
Boyu Du +9 more
wiley +1 more source
Rare Metals, Volume 45, Issue 10, October 2026.ABSTRACT High‐yield photocatalytic H2O2 production in sacrificial agent‐free pure water constitutes a critical bottleneck requiring urgent advances in energy catalysis. Although ZnIn2S4 (ZIS) exhibits favourable visible light absorption, it is plagued by severe bulk charge carrier recombination and scarce accessible surface‐active sites.
Sheng Liu +7 more
wiley +1 more source