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Light People:Professor Che Ting Chan,curiosity drives to create the impossibilities

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Light(Science & Applications) 2024年第7期13卷 1229-1233页

作者： Tingting Sun Ying xiong Light Publishing Group Changchun Institute of OpticsFine Mechanics and PhysicsChinese Academy of SciencesNo.3888 Dong Nanhu RoadChangchun 130033China College of Intelligence Science and Technology National University of Defense TechnologyNo.109 Deya RoadChangsha 410073China

Editorial“When something is said to be impossible,there are two points for researchers to initially clarify:whether it really is forbidden by the laws of nature;or whether it is simply that no material that currently exists in nature can do that.”Metamaterials are such magical beings,which have physical properties like invisibility,negative refraction,super-resolution,and perfect absorption that are absent from natural *** has been rated by Science as one of the top ten scientific and technological breakthroughs affecting human beings in the 21st *** this issue of Light People,we spoke with a“magic”creator,Professor Che Ting Chan,the Associate VicePresident(Research&Development)of the Hong Kong University of Science and Technology(HKUST),Member of the Hong Kong Academy of Sciences and Fellow of the American Physical *** has researched a number of theoretical problems in material physics,investigated the theory behind what they seek to achieve,and modulated light(electromagnetism)and acoustic waves through *** the following,let’s take a closer look at Professor Che Ting Chan’s research life,and appreciate his style and the background of his accomplishment.

关键词： breakthrough closer visibility

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光斑尺寸对光学薄膜元件温升的影响

强激光与粒子束 2007年第12期19卷 1983-1986页

作者：代福熊胜明中国科学院光电技术研究所

实验测量了波长1 064 nm,10 kHz高重复频率激光辐照下在白宝石、石英玻璃、K9基片上制备的Ta2O5/SiO2高反膜的温度变化,有限元分析的结果与实验结果相一致。用ANSYS程序计算了不同光斑直径、相同功率激光和相同功率密度激光辐照下薄膜... 详细信息

实验测量了波长1 064 nm,10 kHz高重复频率激光辐照下在白宝石、石英玻璃、K9基片上制备的Ta2O5/SiO2高反膜的温度变化,有限元分析的结果与实验结果相一致。用ANSYS程序计算了不同光斑直径、相同功率激光和相同功率密度激光辐照下薄膜元件温升的变化。结果表明:相同功率激光辐照光学薄膜元件时,光斑大小只影响激光辐照点的温升,对基板温升没有影响。基板温升只与激光功率有关,激光功率越大,基板温升越大。相同功率密度激光辐照光学薄膜元件时,光斑越大,激光辐照点温度及基板温度均越高。从激光损伤的热效应考虑,小光斑激光辐照时,光学薄膜的激光损伤阈值较高。

关键词：重复频率激光光斑光学薄膜温升激光损伤阈值

Convex-up Style of Deformation within Grabens in Regions of Incomplete Crossing Conjugate Normal Faults: A Numerical Simulation Investigation and Case Study

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Journal of Earth Science 2024年第3期35卷 839-849页

作者： Zheng Li Kai Wang xiong xiong Bing Zhou School of Geophysics and Geomatics China University of GeosciencesWuhan 430074China State Key Laboratory of Geodesy and Earth’s Dynamics Innovation Academy for Precision Measurement Science and TechnologyChinese Academy of SciencesWuhan 430077China Department of Earth Sicences Khalifa UniversityAbu DhabiUnited Arab Emirates

Crossing conjugate normal faults(CCNFs)are extensively developed in many hydrocarbon-producing basins,generally existing in the form of incomplete ***,the effect of the non-conjugate zone of the CCNFs on the conjugate relay zone post late tectonic action has not been previously *** use 3D elastic-plastic modeling to investigate the influence of incomplete(i.e.,partially intersecting)CCNFs on the pattern of deformation of strata in the intersection region.A series of model simulations were performed to examine the effects of horizontal tectonic extension,fault size,and fault depth on the deformation of conjugate relay zones of incomplete *** analyses yielded the following results.(1)The model of incomplete conjugation predicts a convex-up style of deformation in the conjugate graben region superimposed on overall subsidence under applied horizontal tectonic extension.(2)The degree of convex-up deformation of the conjugate graben depends on the influence of the non-conjugate zone on the conjugate relay zone,which varies with the amount of horizontal tectonic extension,fault size,and fault burial depth.(3)Our results indicate that incomplete CCNFs can form convex-up deformation,similar to that in the Nanpu Sag area and provide a sound understanding of hydrocarbon migration and accumulation.

关键词： incomplete conjugate normal fault conjugate graben convex-up deformation hydrocarbons Nanpu Sag tectonics.

Influence of Phosphate on Transformation and Plant Uptake of Cadmium in Cd-amended Soils

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Pedosphere 1991年第1期1卷 63-72页

作者： xiongLI－ming LURU－KUN InstituteofSoilScience AcademiaSinicaP.O.Box821Nanjing（China） InstituteofSoilScience AcademiaSinica

Phosphate was found to have neither influence on Cd transformation nor effect on plant Cd uptake in three Cd-amended upland ***,on submerged red earth,high phosphate dressing inhibited the transformation of Cd from exchangeable fraction to other lower-available *** uptake by rice plants increased simultaneously with increasing phosphate supply though plant resistance to Cd also increased at high phosphate *** of phosphate as an amendment for Cd-contaminated soil was therefore not recommended in view of the increasing influx of Cd into food chain especially on flooded soils.

关键词： cadmium phosphate plant uptake soil pollution.transformation

Recent Progress in Bionic Hydrogels for Articular Cartilage:Tribological and Mechanical Characteristics

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Journal of Bionic Engineering 2024年第2期21卷 653-673页

作者： Mohammad Javan Almasi Dangsheng xiong School of Materials Science and Engineering Nanjing University of Science and TechnologyNanjing210094China

Cartilage regeneration and repair are considered clinical challenges since cartilage has limited capability for *** tissue-engineered materials have the ability to repair cartilage,they have weak mechanical characteristics and cannot resist long-term *** the other hand,surgery to replace the joint is frequently done to treat significant cartilage deterioration these ***,the materials that are being used for replacement have high friction coefficients,lack shock absorption functions,and lack *** research on natural articular cartilage structure and function may lead to bionic hydrogels,which have suitable physicochemical and biological characteristics(e.g.,tribological and mechanical properties and the ability to support loadbearing capability),but need *** on their tribological and mechanical characteristics,the current review highlights the most recent advancements of bionic hydrogels used for articular cartilage,highlighting both the field's recent progress and its potential for future *** this reason,firstly,some important property improvement methods of bionic hydrogels are discussed and then,the recent findings of various research on the making of those bionic materials are provided and *** seems that by using some modifications such as product design,surface treatments,animal tests,controlling the isoelectric point of hydrogels,and computer simulation,the intended mechanical and tribological characteristics of natural articular cartilage may be attained by the bionic hydrogels.

关键词： Bionic hydrogel Articular cartilage Mechanical property Tribological property Lubrication

异面撞击载荷下金属蜂窝填充薄壁结构的动态力学性能

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中国公路学报 2015年第1期28卷 120-126页

作者：张勇蔡检明赖雄鸣华侨大学机电及自动化学院福建厦门361021

为了研究不同胞元拓扑结构蜂窝填充薄壁结构的力学性能差异,建立了4种典型胞元填充结构的数值有限元模型,采用参数分析方法研究了它们在不同胞元壁厚及撞击速度作用下的动态力学行为。研究结果表明:在受到异面撞击载荷作用时,蜂窝与薄... 详细信息

为了研究不同胞元拓扑结构蜂窝填充薄壁结构的力学性能差异,建立了4种典型胞元填充结构的数值有限元模型,采用参数分析方法研究了它们在不同胞元壁厚及撞击速度作用下的动态力学行为。研究结果表明:在受到异面撞击载荷作用时,蜂窝与薄壁结构之间存在较强的耦合效应,且交错排布三角形蜂窝与薄壁结构之间的耦合效应最强;在耦合效应与撞击载荷的综合作用下,交错排布三角形蜂窝填充薄壁结构的动态力学性能较其他3种结构更为优异;随着胞元壁厚、撞击速度的增加,蜂窝填充薄壁结构的承载能力、吸能能力和稳定性都有一定程度的提高。

关键词：汽车工程蜂窝填充薄壁结构参数分析动态力学性能异面撞击载荷