Results 11 to 20 of about 12,470 (167)
Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT The development of high‐performance and stable electrocatalysts for oxygen reduction reaction (ORR), oxygen evolution reaction (OER), and hydrogen evolution reaction (HER) plays a critical role in advancing clean energy technologies, including metal‐air batteries and hydrogen production through overall water splitting.
Chen‐Yu Cai +4 more
wiley +1 more source
Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT The evolution of the γ′−Ni3(Al, Ti) phase in superalloys is governed by a coupled coalescence‐ripening mechanism driven by elemental diffusion. In this study, thermal exposure experiments were performed at 750°C and 800°C for durations ranging from 100 to 20,000 h.
Zhaotian Wang +5 more
wiley +1 more source
, 2001 总结了近几年来纳米材料的研究进展，着重从纳米材料的制备、微观结构、力学及热力学性能的研究情况作了一个概述，总结了有关纳米材料的几个研究热点以及分子动力学计算机模拟在纳米材料研究中的应用 ...
刘曰武, 周富信, 文玉华
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Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT The development of efficient and stable bifunctional catalysts remains a key challenge for green hydrogen production via electrochemical water splitting. In this study, a bimetallic Mo/Fe‐doped CoP2 nanoleaf array anchored on carbon cloth (Mo, Fe‐CoP2@CC) was synthesized from zeolitic imidazolate framework‐L (ZIF‐L) via an ion‐exchange and low‐
Xiangqun Zeng +6 more
wiley +1 more source
A Comparative Research in Microstructures of Chinese and Foreign Language Learner’s Dictionaries A Case Study of Psychological Verbs in German, English and Chinese Monolingual Learner’s Dictionaries [PDF]
, 2016 外向型单语学习词典是学习者学习第二语言的一种重要工具，微观结构是一部词典的核心和基础架构，建构一个科学合理的学习词典微观结构对外向型单语学习词典的编纂具有重要意义。国外外向型单语学习词典编纂历史悠久、编纂理论雄厚，尤其是其微观结构的设置成熟稳定，对汉语学习词典微观结构的编纂具有重要的参考价值。据此，本文选取了具有代表性的《商务馆学汉语》（2007版）、《现代汉语常用词用法词典》（2005版）作为汉语学习词典的研究对象，选取了在世界学习词典发展史上占据重要地位的《朗氏德语大词典》（2012版 ...
陈婧
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Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT Expanding near‐infrared (NIR) spectral response and utilizing ultraviolet (UV) photons are effective strategies for enhancing the power conversion efficiency (PCE) of lead halide perovskite solar cells (PSCs). However, the range of NIR spectral response extension and the utilization of UV light for devices are not enough, and the loss of ...
Li He +9 more
wiley +1 more source
Preparation of PDC-SiCNO ceramics with micro / nano structures [PDF]
, 2016 微/纳结构陶瓷如微执行器、微传感器、分子筛及催化剂载体等在军工航天、微电子、医疗设备、生物细胞学等各个领域获得了广泛的应用，并朝着精密化、图案化和微型化的方向发展。最近，国际上发展出一种新型有机聚合物前驱体热解法制备陶瓷的工艺(PolymerDerivedCeramics，简称PDC陶瓷)，具有分子可设计性、液相成型和低温烧结成型等特点，是制备微/纳米陶瓷结构的优良选材。嵌段共聚物自组装技术能构建出形态多样且长程有序的复杂微观结构，是制备高精度微观结构的主流技术。因此，本文以嵌段共聚物F127 ...
刘逾
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Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT MCrAlX coatings are widely used as bond coats in thermal barrier coating systems to protect turbine blades from high‐temperature oxidation. However, their oxidation resistance is often restricted by uncontrolled microstructures, surface roughness, and aggregation of reactive elements (REs). In this study, high‐repetition‐rate femtosecond laser
Wei Qian +7 more
wiley +1 more source
野生动物学报, 1994 选用非明显季节性换毛的水獭皮为实验材料，通过扫描电子显微镜观察毛的微观结构并系统比较了不同个体的相同身体部位、同一个体的不同部位以及不同生长阶段的各种针毛在微观结构上的差异性与稳定性。结果表明，水獭针毛的微观结构既有种的稳定性，也有因不同部位和不同生长阶段等的结构差异．从而提出应用毛的微观结构进行兽类分类与鉴别必须把握毛的类型、毛的生长阶段及所处的身体部位的可比性。
张伟 +4 more
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Approaching Usage Notes in English Advanced Learner's Dictionaries from the Perspective of Noticing Theory: The Case Study of the British ‘Big Five’ [PDF]
, 2016 词汇用法信息的掌握是二语学习者语言能力的一个重要组成部分。学习词典作为专门为学习者设计的词典，应该提供充分和有益的用法信息以满足学习者的需求。用法信息的设置能有效地补充词义信息，因而也是决定词典质量的关键因素。大部分关于学习词典中用法信息的研究都专注于用法标签，专门针对用法说明的研究寥寥无几。此外，注意理论主要用于二语习得的研究，将该理论和词典编纂相结合是一个新的尝试，因此本文将填补这一空白。 为了探讨英语高阶学习词典中用法说明的设置，本文选取了五本具有代表性的英语高阶学习词典即“五大学习词典 ...
黄晓微
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