Results 51 to 60 of about 1,629 (119)
Rare Metals, Volume 45, Issue 1, January 2026.ABSTRACT The design of nanoparticles confined in hollow N‐doped carbon structures is crucial for improving the oxygen reduction reaction (ORR) kinetics, yet achieving this remains a significant challenge. In this work, hollow porous nitrogen‐doped carbon encapsulated FeP/Fe2P (H‐FeP/Fe2P) were successfully constructed via a templating method combined ...
Li‐Xia Wang +8 more
wiley +1 more source
Gaoya dianqi, 2020 随着智能电网的发展和电网规模的迅速增长,及时、准确地掌握电力设备的状态面临巨大的问题和挑战,电网设备的精准运维检修对电力设备真实状态透明化提出了迫切的需求,新一代信息技术"云大物移智"等发展给传统电力设备的智能化提供了基础条件。文中依据现代控制理论、可靠性工程理论,结合电力设备运维检修的需要和国内外的研究现状,通过理论分析的方法,提出基于故障模式分析的电力设备状态空间模型的建立方法,基于故障模拟试验数据修正的电力设备工程仿真计算模型的建立方法,基于电力设备全景数据指纹库的电力设备状态评估模型的建立方法 ...
彭在兴, 王颂, 陈曦
doaj
Development of Simultaneous Determination Method for Multi-categorized Organic Pollutants in Sediment and Its Application to the Study of Combined Pollution Characteristics of the Jiulong RiverEstuary [PDF]
, 2015 我国沿海社会经济相对发达，河口区域承接着流域各类生产、生活活动排放的大量有机污染物。沉积物作为水环境的重要组成部分，既是污染物的主要归宿，又是污染物迁移的载体和二次污染来源。河口沉积物中频繁检出的多环芳烃（PAHs）、多氯联苯（PCBs）、多溴联苯醚（PBDEs）、农药和抗生素等有机污染物严重威胁着河口生态环境。本论文以PAHs、PCBs、PBDEs、农药和抗生素5类122种有机污染物为目标物，运用色谱-串联质谱技术建立了其在沉积物中的分组同时分析方法，并且应用于福建九龙江河口表层和柱状沉积物样品的分析，
易启同
core
Rare Metals, Volume 45, Issue 1, January 2026.ABSTRACT Moist‐electric generators (MEGs) harness energy from ubiquitous ambient humidity, which has emerged as a promising way to collect energy irrespective of location and time. This study presents a high‐performance MEG employing a bilayer Janus nanofiber membrane: a hydrophilic layer (lithium chloride/citric acid/polyvinyl alcohol) for enhanced ...
Peng Chen +7 more
wiley +1 more source
Rare Metals, Volume 45, Issue 1, January 2026.ABSTRACT Mechanoluminescent materials have gained significant attention for their unique capability to convert mechanical stimuli into light without external optical or electrical excitation, holding immense promise for applications in safety monitoring, biomedicine, optical anti‐counterfeiting, and intelligent sensing.
Fanlei Qin +8 more
wiley +1 more source
Enhancing the Ionic Conduction of Ceria‐Based Electrolytes for LT‐SOFCs via Entropy Engineering
Rare Metals, Volume 45, Issue 1, January 2026.ABSTRACT Developing alternative electrolytes with enhanced ionic conductivity is crucial to reducing the operating temperature of solid oxide fuel cells (SOFCs) for broader applications. Entropy engineering offers many opportunities for material design, presenting a promising avenue to develop new electrolytes.
Xiu‐Xiu Li +6 more
wiley +1 more source
Comparative analysis of Enterprise Operating Performance and Dividend Policy between XJ Electric Co., LTD and Guodian Nanjing Automation Co., LTD [PDF]
, 2013 电力工业是在国民经济和社会发展中起着重要支撑作用的基础性产业和公用事业，随着我国经济社会的快速发展，取得了跨越式的成长。电力设备行业在如此良好的发展机遇下，也受益颇多。同时，智能电网、新能源等战略性新兴产业的蓬勃兴起，为电力设备行业带来了一次新的重要发展机遇。本文选取的许继电气和国电南自是国内电力设备行业的两家知名上市企业，其产品在电力二次设备市场上都有着各自的优势，两家企业在智能电网设备的竞争中也占有一席之地。本文通过对两家企业的利润、价值、现金、成长等经营绩效的表现和股利政策的选择进行比较分析 ...
郭欣劼
core
Filling Uniformity of AgNPs in EMI Shielding Patch Regulated by Surface Morphology
Rare Metals, Volume 45, Issue 1, January 2026.ABSTRACT Silver nanoparticles (AgNPs) are extensively employed for electromagnetic interference (EMI) shielding owing to their remarkable conductivity, and are commonly incorporated into polymer matrices. Therefore, the uniformity of the AgNP distribution within the polymer matrix is a crucial factor that affects the EMI shielding performance.
Jie Yang +8 more
wiley +1 more source
Research of High Voltage Switchgear Appliance Based on Ultraviolet Detection [PDF]
, 2014 伴随着我国智能电网规模的不断扩大，对电力系统的安全运行要求越来越 高，同时，因高压放电引起的电网事故尤其是因绝缘问题造成的事故发生也在逐 渐增多。据相关专业部门的统计分析，目前因绝缘问题导致的电力系统事故占所 有电力事故中的第二位，因事故造成的经济损失、影响范围不可估量。 故采用先进有效的检测技术，预先发现和处理绝缘缺陷或线路隐患，对高压 电气设备的维护、修理、防止事故发生具有深刻的意义。本文在分析国内外大量 文献的基础上，基于紫外检测技术、高压电气设备放电原理，研究了以日盲区紫 外光信号为特征的 ...
邢文涛
core
Rare Metals, Volume 45, Issue 1, January 2026.ABSTRACT The central challenge in the development of high‐performance electromagnetic wave‐absorbing materials lies in achieving an optimal balance between impedance matching and attenuation characteristics. This is particularly critical for purely dielectric absorbers, where precise tailoring of the real (ε′) and imaginary (ε″) parts of the complex ...
Zhixiao Wang +7 more
wiley +1 more source