Results 21 to 30 of about 6,612 (108)
Gongye shui chuli, 2015 采用微波辐射的方法对某焦化厂的焦化废水原水进行降解,考察了废水的pH、初始浓度、微波辐射的时间和功率对去除COD的影响。试验结果表明:pH=9、微波功率800 W、微波辐射4 min时,COD去除率最高达到29%。在此条件下,对焦化废水进行微波处理,用气相色谱-质谱联用仪(GC-MS)分析微波处理前后焦化废水中有机物组分的变化情况。结果表明,焦化废水经微波预处理后含氮杂环及其他多环有机物减少,而易生物降解的苯酚类单环有机物增多,其可生化性得到改善。
孙敬, 蔡昌凤, 罗飞翔, 丁庠生
doaj +2 more sources
The Microstructure Evolution and Mechanical Properties of (FeCoCrNi)100‐x(AlCu)x High‐Entropy Alloys
Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT This study systematically investigates the effects of AlCu addition on the microstructural evolution and mechanical properties of (FeCoCrNi)100‐x(AlCu)x (x = 0, 5, 10, 15, 20; at%) high‐entropy alloys (HEAs). The results reveal that the microstructure evolves from coarse equiaxed to refined equiaxed, dendritic, and ultimately dual‐phase ...
Shunfu Xie +7 more
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Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT With the rapid growth demand for advanced integrated electronic systems, lightweight flexible electromagnetic interference (EMI) shielding films integrated with functional properties, such as excellent mechanical properties and self‐healing capability, are a research focus in high‐tech functional materials. Herein, a sandwich‐structured aramid
Dan Guo +9 more
wiley +1 more source
Gaoya dianqi, 2023 为了探测复合绝缘子的内部界面缺陷，文中提出一种基于微波致热的检测方法。针对电力系统中的常用设备——复合绝缘子的典型缺陷，结合电磁波理论，分析了微波在不同介电常数材料中传播特性的差异。通过有限元仿真分析，获得了含酥朽缺陷复合绝缘子在交流电压下的发热特性，并对比了微波作用下酥朽老化绝缘子与正常复合绝缘子发热特性的差异。使用实际出现朽化缺陷的芯棒样品，测试了微波加热后表面温升的特性，分析了微波入射方向、处理时间、功率对发热的影响。仿真与试验结果验证了微波致热检测绝缘子内部缺陷的有效性 ...
刘辉 +5 more
doaj
MXene‐Based Materials: Compositional Engineering for High‐Performance Microwave Absorption
Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT The rapid advancement of aerospace and electronic information technologies has imposed increasingly stringent requirements on microwave absorbing materials (MAMs), such as high absorption efficiency, lightweight, and environmental stability, making the development of advanced MAMs urgent for both civilian and national defense applications ...
Pan‐Pan Zhou +8 more
wiley +1 more source
Rare Metals, Volume 45, Issue 2, February 2026.ABSTRACT To break electromagnetic wave absorption (EMA) tech's single‐attenuation bottleneck, enhancing multi‐wave absorption synergy in composites is key for microstructure design. This study uses mesoporous hollow carbon spheres to make metal nanospheres with cobalt, iron, and nickel nanoparticles, then encapsulates them via electrospinning into a ...
Wei‐Lian Zhang +10 more
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Rare Metals, Volume 45, Issue 2, February 2026.ABSTRACT Porous NiTi alloys are widely used in biomedical and engineering fields. Using the PBF‐LB technique, the TPMS and Voronoi porous parts with a porosity of ∼67% and a minimum feature size of 0.15 ± 0.02 mm were fabricated. Although the bulk sample fabricated with the same parameters is defect‐free, μ‐CT reconstruction on the porous sample ...
Wen‐Hao Zeng +7 more
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MXene‐Based Electromagnetic Attenuation Materials in Microwave and Terahertz Bands
Rare Metals, Volume 45, Issue 2, February 2026.ABSTRACT MXenes exhibit considerable potential for developing high‐performance electromagnetic (EM) shielding and absorption materials operating across microwave and terahertz frequencies, due to their tunable surface chemistry and exceptional charge carrier transport properties.
Guozheng Zhang +9 more
wiley +1 more source
Guangtongxin yanjiu, 2016 提出了一种基于双微环引起范诺共振效应实现超窄带滤波的微环谐振滤波器,通过泵浦波导和微加热装置使其同时具备有源和可调谐性能。通过耦合模理论,推导了该结构的透射率及超窄带带宽公式,并利用MATALAB软件模拟了在滤波器结构中注入增益对超窄带带宽和滤波器的透过率的影响,以及微环波导的热光效应对滤波器谐振波长的影响。仿真结果表明,在滤波器中注入增益能增大透过率,压缩滤波器的超窄带带宽,且微环波导的热光效应可使谐振波长发生红移或蓝移。
郑加金 +3 more
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Rare Metals, Volume 45, Issue 2, February 2026.ABSTRACT Harnessing solar energy for self‐heating presents an effective strategy to suppress surface ice formation. In this paper, we fabricated nano‐silver‐modified multilayer graphene sheets (Ag@MGs) that integrate photothermal and superhydrophobic properties for anti‐icing applications.
Yihan Zhang +7 more
wiley +1 more source