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3篇 您的检索式:作者名="Chengcheng Zhan"
    题名 作者 年代 出处 被引量
1原位探测防污高分子材料与液体界面的分子结构显示文摘海洋生物附着在船体表面会导致严重的燃油消耗的增加,防污高分子材料的研究因此成为对海洋船只运行极其重要的课题。这些高分子可以被用作船只的表面涂层,从而保护船只不受到海洋生物的吸附和生长的影响。两性离子高分子近年来已经逐渐成为潜力巨大的防污材料。研究表明,这些两性离子高分子的表面在水中的强水化作用对于其防污性能有至关重要的影响。在本篇综述中,我们总结了最近通过使用和频(SFG)振动光谱技术来实现的对防污材料的界面分析工作。SFG是一种表面敏感的技术,可以在原位并实时检测界面高分子和水分子的分子结构。我们总结的防污材料包括两性离子高分子,混合电荷式高分子以及两性的拟肽高分子材料。这些材料的界面水研究,以及盐离子对界面水分子作用会被详细讨论。我们也将介绍这些防污材料与蛋白质及海藻之间的作用。以上这些研究清楚地表明了高分子界面强水化与防污性能之间的关联,也显示了SFG是对高分子材料防污机理探索的一个强有力的分析技术。Chengcheng Zhang Ralph Crisci Zhan Chen 2020物理化学学报2020,36,10:1
2Design of the rare-earth-containing materials based on the micro-alloying phase equilibria, phase diagrams and phase transformations显示文摘Rare-earth(RE)elements,known as“industrial vitamins”,have permeated modern lives,especially in high-tech applications.Although the RE elements possess close chemical similarities and have been treated as“one element”in the periodic table,their characteristics differ from each other.The RE microalloying effect is the crux to ameliorate the physicomechanical and thermochemical properties of materials,thereby the study of RE-related phase diagrams becomes indispensable to the design and optimization of RE-containing materials.However,in reality,the knowledge base in this area is considerably scarce compared with that of other commonly-used elements.In this work,the phase equilibria,phase diagrams,phase transformations,and some recent examples of RE-containing materials design are summarized,with which one can predict the RE solubilities,the RE precipitates,as well as the corresponding service behaviors.The attainment of enhanced materials’properties suggests that the thermodynamic rules extracted from the phase diagrams could serve as fundamental criteria for the successful development of novel RE-containing materials.Kai Xu Chengcheng Zhan Ming Lou Xuelian Xiao Ruonan Zhou Fangming Wang Xiaofei Hu Yuan Yuan Keke Chang 2023Journal of Materials Science & Technology2023,,20:0
3Near-threshold-voltage operation in flash-based high-precision computing-in-memory to implement Poisson image editing显示文摘We propose a NOR flash-based computing-in-memory(CIM)to implement high-precision(32-bit)Poisson image editing,including the gradient operations and Laplace operation.To meet the requirements of image processing,CIM operation schemes and reliabilities are carefully studied and optimized,showing that the power consumption at the near-threshold-voltage(NTV)region can be as low as 40 fJ/bit,which is two orders lower than working at the saturation region.High-temperature retention,as well as various disturbs,are also analyzed.The proposed CIM scheme can be applied as an energy-efficient approach to construct the high-precision image processing accelerator.Yang FENG Bing CHEN Mingfeng TANG Yueran QI Maoying BAI Chengcheng WANG Hai WANG Xuepeng ZHAN Junyu ZHANG Jing LIU Jixuan WU Jiezhi CHEN 2023Science China(Information Sciences)2023,66,12:0
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