Results 111 to 120 of about 924,643 (269)
Advanced Functional Materials, EarlyView.This study presents novel anti‐counterfeiting tags with multilevel security features that utilize additional disguise features. They combine luminescent nanosized Ln‐MOFs with conductive polymers to multifunctional mixed‐matrix membranes and powder composites. The materials exhibit visible/NIR emission and matrix‐based conductivity even as black bodies.
Moritz Maxeiner +9 more
wiley +1 more source
Gaoya dianqi, 2021 针对加装防雨降噪装置的±800 kV/6 250 A大容量干式平波电抗器温度场分布问题,依托于输送容量为10 GW特高压直流输电工程,采用流体—热力学耦合的仿真方法与试验相结合的方式,文中研究了±800 kV/6 250 A干式平波电抗器温度场分布特性。试验结果表明:一是平波电抗器温升试验与仿真结果吻合,验证了仿真模型的合理性和准确性;二是防雨降噪装置改变了电抗器上方空气的流动方向,增加了空气流动阻力,影响了电抗器的散热效果;三是800 kV/6 250 A干式平波电抗器实测热点温升为68.1 K ...
刘成柱 +5 more
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Laser‐Induced Graphene from Waste Almond Shells
Advanced Functional Materials, EarlyView.Almond shells, an abundant agricultural by‐product, are repurposed to create a fully bioderived almond shell/chitosan composite (ASC) degradable in soil. ASC is converted into laser‐induced graphene (LIG) by laser scribing and proposed as a substrate for transient electronics.
Yulia Steksova +9 more
wiley +1 more source
Dianci bileiqi, 2012 介绍了用于锦屏-苏南±800 kV特高直流输电工程同里换流站低端换流变压器阀侧±204 kV/2800 A高压直流套管的技术参数、主要尺寸、结构特点,研究的关键技术,型式试验及研究性试验的项目及试验结果。套管的额定直流电压为±204 kV,额定电流为2 800 A。主绝缘（电容芯体）为胶浸纸电容式,经内外绝缘优化设计、采用优质材料,通过工艺研究及试验验证,研制出产品并通过了型式试验及研究性试验的项目。产品的主要性能指标:工频耐受电压+局放测量289 kV（r.m.s）,1 min工频耐受电压588 kV（
刘晓亮 +4 more
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Advanced Functional Materials, EarlyView.Controlled syntheses of lanthanide coordination polymers based on the dihydroxybenzoquinone (DHBQ) organic linker afforded large single crystals of Ln‐DHBQ CPs (Ln = Yb, Nd). A novel structural variant of Yb‐DHBQ is identified by means of single crystal diffraction analysis.
Marina I. Schönherr +7 more
wiley +1 more source
±800kV单12脉动特高压直流输电工程避雷器布置与换流阀过电压研究
Gaoya dianqi, 2018 研究±800 kV双12脉动特高压直流输电工程避雷器布置方案,基于巴西美丽山工程提出±800 kV单12脉动特高压直流输电工程的避雷器布置方案。进一步研究整流站换流阀过电压、阀避雷器承受的能量和电流,选取交流相间操作冲击、6脉动换流器闭锁和Y/Y换流变阀侧绕组单相接地3种典型故障仿真计算,给出了整流站换流阀最大过电压,阀避雷器的最大能量和最大电流。研究结果为±800 kV单12脉动特高压直流输电工程相关设备的设计、生产和试验提供参考。
范彩云 +6 more
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Advanced Functional Materials, EarlyView.A food‐grade cooling composite made from starch and recycled eggshell powder offers a scalable, ultra‐low‐cost solution for passive daytime radiative cooling. Easily prepared using basic kitchen tools, this material empowers communities, even in areas with limited infrastructure, to stay cooler during worsening summer heat waves.
Qimeng Song +3 more
wiley +1 more source
基于Midas Gen的±800 kV直流极线RI电容器组抗震性能评估及防风加固研究
Gaoya dianqi新疆地区高地震带强风沙环境条件对±800 kV直流极限RI电容器组的抗震和抗风性能影响较大，文中以新疆某特高压直流工程换流站±800 kV直流极限RI电容器组为研究对象，采用通用有限元软件Midas Gen进行有限元分析。首先定义材料和截面，建立±800 kV直流极限RI电容器组的Midas Gen模型，然后施加边界条件和载荷工况，仿真分析得到电容器塔架的模态、振型、应力和位移，结果表明±800 kV直流极线RI电容器组满足8度（0.2g）抗震要求。针对新疆地区强风沙环境对电容器塔架位移振动的影响 ...
杨结春, 朱杰鸿, 马维勇
doaj
Advanced Functional Materials, EarlyView.Amorphous calcium phosphate (ACP) microparticles with long‐term and thermal stability are prepared with or without collagen using a scalable one‐pot spray‐drying process. Under simulated physiological conditions, they crystallize into biomimetic bone mineral and, when combined with collagen, form extrudable, fibrillar bone‐like 3D constructs.
Camila Bussola Tovani +13 more
wiley +1 more source
Gaoya dianqi, 2012 针对±800 kV换流阀多重阀绝缘试验因试验回路尺寸大、试验电压高等造成试验实施难度很大的问题,笔者通过采用等效模拟负载模拟部分阀段,试验研究了±800 kV换流阀多重阀的直流电压试验技术、雷电冲击试验技术、操作冲击试验技术。研究表明,此种试验方法是可行的。
张小勇 +7 more
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