Results 121 to 130 of about 847,250 (203)
Enhanced Corrosion Resistance in an Additively Manufactured Copper Alloy via Suppressed Segregation
Rare Metals, Volume 45, Issue 10, October 2026.ABSTRACT This study elucidates the corrosion behavior of C18150 Cu–Cr–Zr alloy fabricated by laser powder bed fusion (LPBF) in comparison with a conventional wrought baseline representative of industrial Cu–Cr–Zr plate products, highlighting the superior corrosion resistance of the additively manufactured condition.
Yang Qi +4 more
wiley +1 more source
, 2006 本文主要对活动星系核的宽线区的产生原因，宽线区的大小与吸积率的关系，宽线区的几何位形等方面进行了研究。 近年来随着对 AGN 的深入研究，人们对活动星系核的宽线区有了较好的认识。然而无论是从偏振光还是近红外连续谱的观测，都证实了一些 II 型 AGNs是没有宽发射线的，而非隐藏的，是真正的 II 型 AGNs。 Nicastro (2000)提出一个理论模型，发现如果吸积率小于一个临界值时 ，宽发射线区不能形成，具有宽线区结构的源的吸积率都大于这个临界值（ ）。本文我们的工作主要是建立在Nicastro
许云
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Ultrasonic Vibration Assisted Laser Processing: A Hybrid Paradigm for Extreme Surface Enhancement
Rare Metals, Volume 45, Issue 10, October 2026.ABSTRACT Traditional laser processing techniques offer many advantages, but they often encounter limitations such as heat‐affected zones, recast layers, residual tensile stresses, and poor surface finish. The integration of ultrasonic vibration (UV) presents a promising hybrid approach to overcome these challenges by introducing beneficial effects like
Aziz Ul Hassan Mohsan +6 more
wiley +1 more source
Rare Metals, Volume 45, Issue 10, October 2026.ABSTRACT Biomass‐based hydrogels are widely regarded as ideal substrates for self‐powered wearable sensors. However, the practical applications of hydrogels are commonly limited by their inherent low strength and toughness, which restrict their capacity to withstand repeated stretching, bending and other mechanical loads arising from human motion in ...
Boyu Du +9 more
wiley +1 more source
, 2012 随着观念转变和技术革新,区域信息资源共享将成为图书馆赖以生存的基本模式和今后发展的主要方向。在论述了区域信息资源共享体系的含义和本质的同时,分析了目前存在的问题 ...
徐睿, 刘纪刚
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Rare Metals, Volume 45, Issue 10, October 2026.ABSTRACT Reflection loss (RL) ≤ −15 dB (corresponding to 96.875% electromagnetic energy absorption), a core metric for moderate‐ to high‐temperature (< 600°C) electromagnetic protection materials, is critical for ensuring the reliability of aerospace high‐temperature structural components.
Chunyan Ding +10 more
wiley +1 more source
中亚干旱区山地-绿洲-荒漠系统及其气候特征——以中国新疆北部和东哈萨克斯坦为例
, 2007 在中亚干旱区,发育着大量的山地-绿洲-荒漠系统,其中中国新疆北部以及哈萨克斯坦东部是中亚干旱区山地-绿洲-荒漠系统的典型区,山地系统是干旱区水资源的形成区,也是重要的矿质营养库和生物种质资源库,绿洲系统是生产力相对较高的区域和人类赖以生存和发展的中心,而荒漠系统则是干旱区面积广阔和环境相对恶劣的区域。地貌类型与气候特征决定耦合类型的基础和框架,水文特征决定耦合类型的空间格局,植被类型反应耦合类型的外貌,本文对新疆北部和东哈萨克斯坦山地、绿洲、荒漠三个子系统结构与功能进行了分析 ...
孙洪波, 杨桂山, 王让会
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Rare Metals, Volume 45, Issue 10, October 2026.ABSTRACT Sodium‐ion batteries (SIBs) offer a promising, cost‐effective alternative for large‐scale energy storage due to the abundance of sodium. However, their practical deployment is challenged by sluggish interfacial kinetics and unstable interphase formation, which severely limit performance across wide temperature ranges. Here, we demonstrate that
Mingxing Zhang +10 more
wiley +1 more source
, 2009 对新疆城镇等级规模与结构功能,以及综合经济发展水平进行了客观评价,对其城镇体系发展状况进行了全面分析,并以此为基础提出了以促进该区域协调发展为目的的城镇体系优化途径 ...
李莹华, 杨德刚, 蔡文春
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Rare Metals, Volume 45, Issue 10, October 2026.ABSTRACT Bimetallic structures fabricated by laser powder bed fusion (LPBF) provide an effective strategy for achieving multifunctional integration, yet interfacial structural continuity and the role of lattice defects remain insufficiently understood.
Jinguo Ge, Shuo Yin
wiley +1 more source