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| 1 | 从古生物学到地球生物学的跨越显示文摘以学科体系和科学问题为导向,对当前国际上出现的地球生物学从学科分类体系、形成背景、主要研究方向、亟待突破的分支学科及其与之相关的研究领域进行了评述.作为地球科学与生命科学相结合而形成的新兴交叉学科,地球生物学在地球科学中应具有独立的一级学科地位,类似于地球化学和地球物理学.地球生物学主要研究地球系统的生命运动,涉及地球环境与生命系统的相互作用.它的形成与发展既是当今科学技术发展的结果,也是当今世界对所面临重大人类-环境-资源问题的响应.分子地球生物学、地球微生物学、地球生态学、地球生理学等地球生物学中的二级学科还有待尽快突破,以形成地球生物学的成熟理论框架和方法体系. | 谢树成 龚一鸣 童金南 史晓颖 赖旭龙 Z.Q.Chen 冯庆来 王红梅 杜远生 王永标 颜佳新 张克信 殷鸿福 | 2006 | 科学通报2006，51，19： | 27 |
| 2 | Corrosion protection of NiNb metallic glass coatings for 316SS by magnetron sputtering显示文摘Metallic glasses(MGs)appear as promising anti-corrosion coating materials due to their microstructural and physicochemical advantages.Herein,we proposed magnetron sputtered NiNb thin film MG coatings(MGCs)with different structures and compositions for corrosion protection of 316 stainless steel in an aggressive saline environment.The properties of monolayered Ni_(50)Nb_(50) and Ni_(60)Nb_(40),as well as the multilayered Ni_(50)Nb_(50)/Ni_(60)Nb_(40)(at.%)MGCs,were characterized in terms of morphology and microstructural properties,as well as the anticorrosion behavior.All the NiNb MGCs presented compact structure and the monolayered coatings exhibited preferable adhesion properties in comparison with the multilayered coating.The electrochemical tests and XPS results imply that the monolayered Ni_(50)Nb_(50) MGC with high Nb content resisted corrosion mainly due to the formation of stable passive film that contained abundant Nb_(2)O_(5) species,whereas the Ni_(60)Nb_(40) MGC with high Ni content showed week corrosion protection performance during long-term service due to the dissolution of Ni cations and the devastation of the coating structure.Though with bit worse adhesion and more vulnerable Ni_(60)Nb_(40) layers,the multilayered Ni_(50)Nb_(50)/Ni_(60)Nb_(40) MGC possessed comparable corrosion resistance with the monolayered Ni_(50)Nb_(50) MG coating,which remained stable even after 32 days of exposure.Such performance should be ascribed to the combined eff;ect of the repassivation property for the sub-layers,the hindrance of propagation paths of micro-defects,and the obstruction of corrosive species by interfaces in the multilayered coating. | L.Jiang Z.Q.Chen H.B.Lu H.B.Ke Y.Yuan Y.M.Dong X.K.Meng | 2021 | Journal of Materials Science & Technology2021，，20： | 1 |
| 3 | A new image encryption algorithm based on hyper-chaos显示文摘 | T.G.Gao Z.Q.Chen | | 0，，04： | 1 |
| 4 | Irradiation-induced homogeneous plasticity in amorphous/amorphous nanolaminates显示文摘Achieving homogeneous plastic deformation in metallic glasses is a long-standing goal yet to be solved in materials science. Here we investigate the effect of ion irradiation on the plastic deformation behavior of ZrCu/ZrCuNiAlSi amorphous/amorphous nanolaminates(A/ANLs) via nanoindentation testing. The experimental results indicate a dramatic change in deformation mode from multiple shear banding events to homogeneous compressive deformation before and after ion irradiation on the A/ANLs in the areas underneath the indenter. Ion irradiation-induced changes of both fraction and distribution of free volume inside each constituent layer and interfacial state in the A/ANLs may be responsible for the unusual homogeneous deformation behavior. Our results suggest that the mechanical property of A/ANLs could be modified by tuning both the inner and interfacial structure via ion irradiation. | L.Huang Z.Q.Chen P.Huang X.K.Meng F.Wang | 2020 | Journal of Materials Science & Technology2020，54，22： | 1 |
| 5 | Hardening and toughening effects of intermediate nanosized structures in a confined amorphous alloy film显示文摘The plastic deformation of amorphous alloys is well known to be localized into shear bands(SBs),which are believed to stem from the atomic-scale flow defects,i.e.,shear transformation zones(STZs).Yet,the bridge between the mesoscopic SBs and the atomic-scale STZs remains poorly understood.In this work,through thermally activating pronouncedβrelaxations in the well-designed crystalline-layer confined amorphous(CLCA)Ni W alloy films,we experimentally captured and observed an intermediate nanosized structure termed as“nano shear bands”(NSBs)with a typical size of 1–2 nm in thickness and5–10 nm in length.The influences of such NSB structures on the macroscale deformation behavior were systematically investigated.It was found that NSBs lead to both hardening and toughening effects for the CLCA films,as they promote multiple and controlled shear banding deformation,which results in enhanced crystallization.The intermediate NSB structure could connect the microstructural characteristics and macroscopic plasticity in amorphous alloys and may provide new insights for understanding the microscopic deformation mechanism of amorphous alloys as well as tuning/designing their properties. | Z.Q.Chen M.C.Li X.Tong Y.Zhao J.Y.Xie S.W.Guo P.Huang F.Wang H.B.Ke B.A.Sun W.H.Wang | 2022 | Journal of Materials Science & Technology2022，，23： | 0 |
| 6 | When joggers meet robots:the past,present,and future of research on humanoid robots显示文摘Spawned by fast-paced progress in new materials and integrate circuit technology,the past two decades have witnessed tremendous development of humanoid robots for both scientific and commercial purposes,e.g.emergency response and daily life assistant.At the root of this trend are the increasing research interests and cooperation opportunities across different laboratories and countries.The application-driven requirements of high effectiveness and reliability of humanoid robots led intensive research and development in humanoid locomotion and control theories.In spite of the progress in the area,challenges such as unnatural locomotion control,inefficient multi-motion planning,and relatively slow disturbances recovery set further requirements for the next generation of humanoid robots.Therefore,the purpose of this work is to review the current development of highly representative bipedal humanoid robots and discuss the potential to move the ideas and models forward from laboratory settings into the real world.To this end,we also review the current clinical understanding of the walking and running dynamics to make the robot more human-like. | George H.Z.Liu Michael Z.Q.Chen Yonghua Chen | 2019 | Bio-Design and Manufacturing2019，2，2： | 0 |
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