Results 11 to 20 of about 7,248 (178)
Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT High‐capacity SiOx/graphite (SiO/G) anodes offer great potential for advancing lithium‐ion battery technology; however, their practical application is limited by low initial coulombic efficiency (ICE) and rapid capacity decay. These challenges primarily arise from unstable phase transitions and the formation of the solid electrolyte interphase
Wan‐Xing Zhang +14 more
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Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT MXenes have been widely investigated as microwave absorption (MA) materials because of their unique properties. This study introduces a terminal bond manipulation strategy to enhance charge transfer and polarization in Ti3C2Tx, optimizing its MA performance.
Xiang Fang +8 more
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Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT The inherent trade‐off between high saturation induction (Bs) and low core loss in soft magnetic materials presents a challenge in the development of high‐frequency power electronics. Here, a processing approach that combines accelerated Cu ordering with dual magnetic anisotropy control in high‐Bs Fe‐based nanostructured cores is examined ...
Xiaoying Li +11 more
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Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT The growing concern over human health issues, driven by increasingly severe electromagnetic pollution from 5G communication, has made the urgent development of high‐performance electromagnetic wave (EMW) absorbing materials. Although carbide‐based materials are promising because of their conductive and polarization losses, existing single ...
Chenqiang Duan +9 more
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Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT Emerging as attractive alternatives for sustainable, low‐cost, and high‐performance electromagnetic interference (EMI) shielding, biomass‐derived carbon is nonetheless constrained by a limited repertoire of shielding mechanisms. Herein, a straightforward method was employed to synthesize self‐supporting Co nanoparticles embedded in porous N ...
Yingjie Xu +6 more
wiley +1 more source
Gaoya dianqi, 2019 基于全桥MMC的柔性直流输电系统,能迅速隔离直流线路故障,得到了广泛的应用。损耗是衡量换流阀的重要指标,文中对基于全桥MMC换流阀的损耗进行分析,运用分段解析计算的方法给出具体的计算表达式。首先,将MMC换流阀的总损耗分为通态损耗和开关损耗两部分。然后,根据桥臂电流的方向,桥臂电压与投入子模块个数之间的关系,运用分段解析方法得到MMC换流阀的通态损耗;之后,根据每个子模块投切状态变化对应的能量损耗进行分段解析计算,求得MMC换流阀的开关损耗;将这两部分损耗进行综合,从而得出基于全桥MMC换流阀的总损耗 ...
荣飞 +4 more
doaj
Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT Fe‐based amorphous alloys are attractive soft magnetic materials for next‐generation power electronics, yet simultaneously achieving high saturation magnetic flux density (Bs), low coercivity (Hc), and low core loss under scalable processing conditions remains challenging.
Zhi‐Jun Guo +10 more
wiley +1 more source
Guangtongxin yanjiu, 2006 文章给出了多包层标准单模光纤的宏弯曲损耗模型,这一损耗模型不仅适用于多包层单模光纤的宏弯曲损耗的计算,也适用于单包层单模光纤的宏弯曲损耗的计算。文章还讨论了弯曲半径及工作波长与单模光纤弯曲损耗之间的关系,并把这种关系与传统的弯曲损耗模型进行了比较,比较结果表明,单模光纤包层对弯曲损耗有很大的影响。此外,文章还运用模式耦合理论详细解释了廊（Whispering-gallery,WG）模对损耗振荡的影响。
王建飞, 王高刚, 张逸新
doaj
Qtech-413 粘弹阻尼材料在盾构隧道中减振性能研究 [PDF]
, 2016 根据盾构隧道的结构特点,用Qtech-413 粘弹阻尼材料对盾构管片标准块进行约束阻尼处理,通过单点锤击振动实验,得到处理前后结构的时域波形、固有频率、复合损耗因子等振动特性。实验结果显示:经过约束阻尼处理后,盾构管片振动加速度幅值降低了26.7%,振动时长降低了50%;各阶固有频率均有所降低,且随着频率的增加,降幅逐渐增加;各阶复合损耗因子均有所升高,高频增幅比低频增幅更大;振动总级值降低了10 dB 左右。因此,Qtech-413 粘弹阻尼材料应用于盾构隧道能降低振动加速度幅值、振动时间 ...
黄舰 +1 more
core
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