Results 21 to 30 of about 893,942 (146)
Rare Metals, Volume 45, Issue 8, August 2026.ABSTRACT Many metallic components are frequently subjected to coupled environments of friction and vibration, stemming from interfacial contact and relative motion between mating parts or external stimuli. Consequently, it is imperative for these components to exhibit a synergy of high wear resistance and superior damping properties.
Ze Pu +12 more
wiley +1 more source
Shiyou jixie, 2012 目前API标准规定的最高钢级钻杆——S135级钻杆的强度和韧度均不能满足超深井钻采的需要。为此，在高强度钻杆钢中添加微合金元素V、Nb配合控轧控冷技术，并调整调质热处理工艺，对比研究传统调质工艺和控制轧制调质工艺对该钢强度和韧度的影响。研究结果表明，经控制轧制后钢的晶粒度明显细化，使得强度和韧度得到明显的提高；Mo元素和Nb 、V微合金元素的碳化物在500 ℃以上会出现回火二次强化现象；加入Nb元素可降低2#钢板条的宽度，同时Mo元素和Nb、V微合金元素在钢中形成了不同于针状渗碳体的颗粒状和球状碳化物，
马军, 徐欣, 赵文轸
doaj
Rare Metals, Volume 45, Issue 8, August 2026.ABSTRACT Na‐superionic‐conductor‐type (NASICON) Na4MnV(PO4)3 (NMVP) is an appealing cathode for sodium‐ion batteries (SIBs), but its application is hindered by Jahn–Teller distortions, sluggish Na+ kinetics and poor conductivity, leading to rapid capacity fade.
Huan Liu +8 more
wiley +1 more source
Microstructure Engineering Toward High Cost‐Effective Nd–Fe–B Sintered Magnets: A Review
Rare Metals, Volume 45, Issue 7, July 2026.ABSTRACT Nd–Fe–B sintered magnets, critical for enhancing electromechanical conversion efficiency and operational stability in wind turbines and electric vehicle drives, are prized for their outstanding coercivity, high remanence, and superior maximum energy product.
Dongmin Zhang +5 more
wiley +1 more source
Gongye shui chuli, 2002 论述了UASB-SBR处理桂林漓泉股份有限公司啤酒废水的生化原理和系统调试、运行管理的工艺控制要点。工程实践表明，UASB-SBR工艺是一种有效地处理啤酒废水的工艺;UASB池中颗粒化污泥成熟后，系统有很强的pH缓冲能力，不必加碱调节碱度;尽管啤酒废水缺乏氮源，UASB-SBR系统中的微生物能适应水质环境 ...
熊庆明, 解庆林, 丁昌福
doaj +2 more sources
Rare Metals, Volume 45, Issue 7, July 2026.ABSTRACT Laser powder bed fusion (LPBF) of Inconel 718 alloy inevitably introduces pronounced microstructural anisotropy, typified by columnar grains and robust crystallographic texture. This results in direction‐dependent fatigue behavior, raising critical reliability concerns for high‐stakes aerospace applications.
Zhifang Shi +9 more
wiley +1 more source
Wafer‐Scale Amorphous g‐C3N4 With Broadly Tunable Dielectric Properties for 2D Electronics
Rare Metals, Volume 45, Issue 7, July 2026.ABSTRACT Two‐dimensional (2D) semiconductors are regarded as promising candidates for next‐generation electronics due to their superior electrostatic control; however, their performance is severely constrained by the lack of suitable dielectric materials.
Binyin Gao +13 more
wiley +1 more source
, 1998 RNA加工和细胞周期调控既是近年来细胞生物学和分子生物学研究的热门领域，又是研究基因表达和调控、细胞增殖和分化、细胞癌变和凋亡、以及基因工程和细胞工程等生物技术的基础。本书分为三篇，第一篇为RNA加工，第二篇为细胞周期调控，第三篇为RNA剪接与细胞周期调控的联系。内容包括割裂基因和RNA剪接，剪接反应和剪接体，剪接蛋白，RNA剪接的牛理作用，RNA加工的亚核结构，InRNA的翻译调控，细胞周期及其事态，细胞周期调控研究的特殊系统，周期蛋白和依赖于周期蛋白的激酶，细胞周期运转的制动机制 ...
桂建芳
core
Rare Metals, Volume 45, Issue 7, July 2026.ABSTRACT Electromagnetic interference (EMI) shielding materials with low reflectivity are ideal materials for addressing the pollution caused by electromagnetic radiation. Ti3C2Tx MXene is widely used for EMI shielding due to its excellent conductivity.
Guirong Hu +6 more
wiley +1 more source
, 2012 为研究西藏传统铜佛像的制作工艺,作者赴西藏拉萨、昌都等地进行了实地考察。本文以传统铜佛像制作的沙范法铸造工艺、锻打工艺和錾刻工艺为主要研究对象,对藏族传统铜佛像制作的工艺面貌进行较为详细的考察和分析,指出详细的工艺步骤和流程,通过西藏铜佛像传统制作工艺特征的观察,阐述其在技术史研究中的意义,并初步提出需要进一步探索的相关课题 ...
袁凯铮 +3 more
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