Results 31 to 40 of about 263,818 (150)

智能配电网与配电自动化的解析

, 2016
经济的快速发展，加大了人们对电量的需求，智能配电网已经成为人们在电力系统分析和研究的主要方向。智能配电网对整个电力系统的进步和升级有着带动作用，智能电网的一个重要组成部分就是配电自动化，目前，我国大力发展配电自动化技术，目的在于提高我国智能配电网水平。 本文就两者之间的联系，以及相应技术的提升、完善措施进行分析，以期对促进我国智能配电网的应用和完善方面有所启示。
维维 帅
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Spatiotemporally Adaptive Bilayer Silk Fibroin–Polyvinyl Alcohol–Metformin Composite Coating on Biodegradable Zinc for Orthopedic Applications

Rare Metals, Volume 45, Issue 7, July 2026.
ABSTRACT Biodegradable zinc (Zn)‐based materials are considered promising candidates for orthopedic applications because of their favorable mechanical properties, controllable biodegradability, and good biosafety profiles. However, their clinical translation is limited by early‐stage corrosion‐induced cytotoxicity and inflammation, as well as ...
Jinlong Mao, Wentai Zhang, Jingtao Dai, Zhaozhao Zhang, Junyu Qian, Jinjing Liu, Wenjie Tao, Yuanhao Wang, Dorothea Alexander, Guojiang Wan   +9 more
wiley   +1 more source

Designing “Sphere/Network” Hierarchical Dielectric Loss Structure for Efficient Electromagnetic Wave Absorption

Rare Metals, Volume 45, Issue 6, June 2026.
ABSTRACT Electromagnetic wave absorption materials require high dielectric loss and excellent impedance matching performance. However, current conventional biomass‐derived electromagnetic wave absorption materials are still limited by low electrical conductivity and a single structure.
Yue Zhang, Xin Yang, Yongwen Yang, DingYuan Ma, Wenjian Wang, Qing Pang, Changyi Zheng, Weiping Ye, Rui Zhao, Weidong Xue   +9 more
wiley   +1 more source

试析智能电网配电自动化的改造策略

, 2017
<p>随着电力系统和电网建设的不断发展，实现智能电网的配电自动化已经成为必然趋势。实现智能电网的配电自动化不仅对于电力事业的发展有着很大的推进作用，同时也是电网建设提高发展的重要表现。本文主要结合智能电网的配电自动化发展情况，对智能电网的配电自动化改造实施策略以及改造注意事项进行论述。</p>
永 康
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Ultralight N‐Doped Interconnected Porous Carbon From Lignin: Synergistic Structural and Doping Engineering for High‐Performance Electromagnetic Wave Absorption

Rare Metals, Volume 45, Issue 6, June 2026.
ABSTRACT The development of lightweight, high‐attenuation, and broadband carbon‐based electromagnetic wave absorbers is hindered by the intrinsic trade‐off between impedance matching and dielectric dissipation. Herein, we report a facile and scalable synthesis of N‐doped lignin‐derived interconnected porous carbon (Nx‐LIPC) via hydrogen‐bond self ...
Bin‐Peng Zhang, Jin Li, Le Qiao, Ping‐Xian Feng, Zhi‐Yi Huang, Qing‐Ao Peng, Chen‐Xi Liu, Huan Wang   +7 more
wiley   +1 more source

Multi‐Walled Carbon Nanotube‐Penetrated Metal–Organic Framework‐Derived TiO2/C 3D Conductive Network Achieves Lightweight, Wide‐Band, Ultra‐Strong Electromagnetic Wave Absorption

Rare Metals, Volume 45, Issue 5, May 2026.
ABSTRACT In recent years, materials capable of achieving efficient electromagnetic wave (EMW) absorption over a broad frequency range have attracted widespread attention. Such materials are not only significant in mitigating electromagnetic interference and pollution caused by the extensive use of electronic devices but also demonstrate outstanding ...
Maoxia Lu, Zhi Lei, Teng Zhou, Daohai Zhang, Yupeng Hu, Dongju Liu, Junlei Wang, Wei Gong   +7 more
wiley   +1 more source

Advancements and Applications of 3D Printing Techniques and Novel Materials in Soft Robotics for Medical Devices

Rare Metals, Volume 45, Issue 5, May 2026.
ABSTRACT Additive manufacturing, commonly referred to as three‐dimensional (3D) printing, provides the geometric freedom and multi‐material integration needed to build soft medical robots for minimally invasive interventions, prosthetics, and rehabilitation.
Yao Wang, Wen Cui, Hongjie Huang, Yuer Yang, Xinyang He, Mingxian Liu   +5 more
wiley   +1 more source

分布式光伏接入对配网系统的暂态特性影响研究

Dianci bileiqi, 2023
随着大量分布式光伏接入配电网，电力系统负荷侧的动态特性产生显著变化，尤其是配电网发生故障时，光伏的有功和无功响应对配网产生较大影响，因此，需要对分布式光伏接入对配网系统的暂态特性进行建模分析。基于光伏并网系统传统结构及控制方式，提出分别适用于低电压和高电压故障下，有功与无功解耦的逆变器保护控制策略，并对模型的高低电压穿越能力进行仿真，并基于逆变器实际电压穿越检测报告进行检验，验证了该光伏并网系统模型具备规定的故障穿越能力。由北京地区某光伏电站实际配网结构、设备参数和光伏控制参数 ...
陈茜, 周运斌, 崔涵, 王海云, 陈小月, 王卫, 王方雨, 郑智慧   +7 more
doaj  

Synergistic Engineering of Amorphous Cathode and Hybrid Electrolyte Toward Stable High‐Voltage Aqueous Zn‐Ion Batteries

Rare Metals, Volume 45, Issue 5, May 2026.
ABSTRACT The development of high‐voltage aqueous zinc‐ion batteries (AZIBs) is primarily hindered by the lack of suitable cathode materials and electrolytes that can work in broad voltage windows. Herein, we propose a synergistic strategy that concurrently addresses these challenges through the integration of an amorphous vanadium oxyphosphate/graphene
Xianyu Liu, Yihong Huang, Rui Xu, Enjie Hu, Xiangcheng Dong, Xinyu Wang, Hongmei Cao, Baojuan Xi   +7 more
wiley   +1 more source

基于多层卷积神经网络的串联电弧故障检测方法

, 2020
低压配电网的电弧故障是诱发电气火灾的重要原因之一。配电网发生串联电弧故障时的电流一般较小,其有效值达不到过电流保护装置的整定值,而且在某些负载工况下,正常工作状态电流与串联电弧故障电流波形特征非常相似,导致串联电弧难以识别。针对串联电弧故障的识别难点,提出了一种基于多层卷积神经网络的时域可视化识别方法。使用高频耦合滤波电路和高速数据采集系统来采集串联电弧故障的高频信号。通过构建多层卷积神经网络,提取电弧图像高维特征。以时域灰度值图像的形式直观展示了卷积神经网络算法对故障电弧数据的抽象特征提取情况 ...
褚若波, 张认成, 杨凯, 肖金超
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