Results 101 to 110 of about 193,229 (203)
, 2006 详细地阐述了高频大功率SiGe／Si异质结双极晶体管（HBT）设计中的一些主要问题，主要包括器件的纵向设计中发射区、基区以及收集区中掺杂浓度、形貌分布、层厚的选择以及横向布局设计中的条宽、间隔的选择等 ...
王启明, 薛春来, 成步文, 姚飞
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Rare Metals, Volume 45, Issue 11, November 2026.ABSTRACT Defect engineering plays a crucial role in regulating the active sites and reaction pathways of nanozymes. In this work, oxygen vacancies (Vo) were successfully introduced and stably regulated in ternary CoFeMo layered double hydroxide (CFM LDHs) via a microwave‐assisted hydrothermal strategy, leading to the construction of oxygen‐vacancy‐rich
Min An +8 more
wiley +1 more source
Rare Metals, Volume 45, Issue 11, November 2026.ABSTRACT Electrocatalytic CO2 reduction reaction (CO2RR) represents a pivotal pathway for the promotion of carbon neutrality and the preparation of highly valuable chemicals. To improve the product selectivity and catalytic efficiency of CO2RR, single‐atom catalysts (SACs) offering highly efficient atomic utilization rates and adjustable electronic ...
Xiaorui Liu +7 more
wiley +1 more source
, 1993 <正> 豚池是豚类动物饲养的基本条件,建设符合豚类动物生活,生长和繁殖所必需的饲养设施,是豚类饲养成败的关键之一。作者通过12年来白鱀豚Lipotes vexillifer饲养实践的总结,并实地考察了美、英、日、德国、法国、荷兰、瑞士和香港等国家和地区的豚类饲养设施,结合我国国情,设计了白暨豚饲养繁殖系统——新白鱀豚馆 ...
刘仁俊
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, 2012 在人类发展历程中,每一个环节都离不开人类的主观思维活动及设计。设计,说白了,就是让所改造物体达到你所要目的的一项技能,它无时无刻都在影响着人们的生活,设计的进步是与时俱进的,设计的进步来源于现实却引导现实的发展与进步 ...
王晓晗
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Rare Metals, Volume 45, Issue 11, November 2026.ABSTRACT This study systematically investigates the creep behavior of an Al19Co21Fe20Ni40 eutectic high‐entropy alloy (EHEA) at 500°C, focusing on the synergistic effects of heterostructure design and trace boron doping. Thermomechanical processing was employed to produce a heterostructure consisting of alternating lamellar and equiaxed regions.
Xudong Liu +7 more
wiley +1 more source
Rare Metals, Volume 45, Issue 11, November 2026.ABSTRACT The separation of light olefins is a crucial process in the petrochemical industry, and developing advanced adsorbent materials is very significant. Aluminum (Al) cluster‐based heterometallic frameworks possess great application prospects but have rarely been investigated for separation applications.
Song‐Yan Sui +4 more
wiley +1 more source
, 1990 本文从工业心理学角度,介绍了现场研究中准实验设计应注意的四个效度问题:统计结论效度、内部效度、构造概念效度和外部效度:接着,讨论了准实验常用的设计方法:1,一般性不可解释的设计,2,带有前测和后测的非处理控制组的设计,3,迭择群体的设计,4,间断的时间-系列设计,并对这些方法的应用范围和需要避免的问题进行了探讨;最后 ...
时勘
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, 2009 近些年,"文化设计"成为一种设计热潮,它可以成为我国提高设计竞争力和扩大国际影响力的一种捷径。但我们在承认文化设计的积极意义的前提下,我们也要承认,具有深厚的传统文化仅仅为中国文化设计提供了一种可能性。由于对于文化的误解和设计本身的差距,当前的一些文化设计不可避免成为掩盖当今中国设计弱势的一种想象。要从事真正的文化设计,一方面有必要深入了解中国的传统文化,懂得真正欣赏和尊重本民族的文化;另一方面还要进一步加强设计的教育和学习,而这些都不能在短时期内完成 ...
丁朝虹
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Rare Metals, Volume 45, Issue 11, November 2026.ABSTRACT Ensuring uncompromised safety across interconnected domains is vital for global societal sustainability. Metal–organic framework (MOF)‐based nanocomposites, owing to their intrinsically tunable structures and broad functional versatility, represent a powerful class of materials for safety‐related engineering.
Rongfu Peng +6 more
wiley +1 more source