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Acta Oceanologica Sinica 1993年第4期12卷 521-534页

作者： F.Parungo J.Rosinski m.L.c.wu c.T.Nagamoto Air Resources Laboratory NOAA/ERL Boulder CO U.S.ANational Center for Atmospheric Research Boulder CO U.S.AGoddard Space Flight Center NASA Greenbelt MD U.S.AAir Resources Laboratory NOAA/ERL Boulder CO U.S.A

Under bilateral cooperation between the United States of America and the People's Republic of china, a series of research cruises were conducted over the western Pacific Ocean. It was found that a) the non-sea-salt sulfate aerosol particles are the major source of cloud condensation nuclei, b) the population of clouds and the total albedo are proportional to the concentration of condensation nuclei and consequently to the concentration of the non-sea-salt aerosol particles, and c) the amount of rainfall is inversely proportional to the concentration of non-sea-salt sulfate aerosol particles. It seems that anthropogenic sulfate aerosol particles affect the regional planetary albedo and climate and that the contribution from biogenically derived sulfate aerosol particles is of lesser importance.

关键词： data Variation of sulfate aerosol concentrations over the western Pacific and their effect on clouds radiation and precipitation over

Environmental concern of Using coal Tar in Road Engineering and Its Possible Alternatives

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武汉理工大学学报 2010年第17期32卷 1-7,17页

作者： XIAO Y VAN DE VEN m F c mOLENAAR A A A wu S P Faculty of civil Engineering & Geosciences Delft University of TechnologyP.O.Box 50482600 GA Delftthe Netherlands Key Laboratory of Silicate materials Science and Engineering of the ministry of Education Wuhan University of TechnologyWuhan 430070China

coal tar,a by-product from the destructive distillation of coal in coking oven,is widely used in road engineering for its excellent adhesion and fuel resistance properties,especially for pavement surface treatments in gas stations and airports. However,coal tar has a high Polycyclic Aromatic Hydrocarbons (or PAHs) content,which makes it toxic. In 1985,the International Agency for Research on cancer (IARc) has proved that coal tar is carcinogenic to humans. Research showed that coal Tar-based Sealers (cTS) contribute to the majority of PAHs pollution in the water *** of this environmental concern,cTS are not allowed in many developed countries in the USA and Europe. In contrast,coal tar is still used for road engineering in china and is even used *** paper gives a literature review on the general information and research about environmental concern of using coal tar in road engineering. Based on the review,some possible alternatives to replace coal tar are described. These alternatives include nano-clay/epoxy modified bitumen/bitumen emulsion and waterborne polyurethane/epoxy resin,which are environmental friendly. They have the potential to perform as well as cTS,and even better in some special applications.

关键词： coal tar pavement surface treatment adhesion property polycyclic aromatic hydrocarbons modified bitumen emulsion

Time-Independent Finite Difference and Ghost cell method to Study Sloshing Liquid in 2D and 3D Tanks with Internal Structures

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communications in computational Physics 2013年第3期13卷 780-800页

作者： c.H.wu O.m.Faltinsen B.F.chen Department of marine Environment and Engineering National Sun Yat-Sen UniversityKaohsiung 804Taiwan certre for Ships and Ocean Structures&Department of marine Technology NTNUTrondheim 7491Norway

A finite difference scheme with ghost cell technique is used to study viscous fluid sloshing in 2D and 3D tanks with internal *** Navier-Stokes equations in a moving coordinate system are derived and they are mapped onto a time-independent and stretched *** staggered grid is used and the revised SImPLEc iteration algorithm is *** developed numerical model is rigorously validated by extensive comparisons with reported analytical,numerical and experimental *** present numerical results were also validated through an experiment setup with a tank excited by an inclined horizontal excitation or a tank mounted by a vertical *** method is then applied to a number of problems including sloshing fluid in a 2D tank with a bottom-mounted baffle and in a 3D tank with a vertical *** phenomena of diagonal sloshing waves affected by a vertical plate are investigated in detail in this *** effects of internal structures on the resonant frequency of a tank with liquid are discussed and the present developed numerical method can successfully analyze the sloshing phenomenon in 2D or 3D tanks with internal structures.

关键词： Liquid sloshing baffle plate time-independent finite difference ghost cell

An in vitro investigation of photodynamic efficacy of FosPeg■ on human colon cancer cells

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Journal of Innovative Optical Health Sciences 2015年第5期8卷 86-93页

作者： Ricky W.K.wu Ellie S.m.chu Zheng Huang malini c.Olivo David c.W.Ip christine m.N.Yow medical Laboratory Science Department of Health Technology&Informatics Hong Kong Polytechnic UniversityHKSARChina Department of medical Science Tung Wah CollegeHKSARChina college of Photonic&Electronic Engineering Fujian Normal University Fuzhou China University of colorado Denver cancer center COUSA Department of Pharmacy National University of SingaporeSingapore

Photodynamic therapy(PDT)is a novel therapeutic approach for combating various *** involves the administration of a photosensitizer which generates singlet oxygen after light ***■ is the liposomal formulation of *** this in vitro study,the photodynamic efficacy of FosPeg■ on a human colon cancer cell line(HT29)was investigated via studying the cellular uptake of FosPeg■,FosPeg■ PDT mediated photocytotoxicity and the cell death mechanism were ***■ PDT demonstrated its antitumor effect in a drug and light dose-dependent manner in HT-29 *** dose(LD50)was achieved with 0.4g/mL of drug and 3 J/cm^(2) of light ***■ PDT triggered apoptotic cell death via activating caspase cascade and regulating cell cycle *** conclusion,FosPegr-PDT is an effective measure to combat human colon cancer cells.

关键词： FosPeg■ HT-29 apoptosis caspase-3

Long-term deterioration of lubricant-infused nanoporous anodic aluminium oxide surface immersed in Nacl solution

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Journal of materials Science & Technology 2021年第5期64卷 57-65页

作者： Dequan wu Lingwei ma Bei Liu Dawei Zhang Badar minhas Hongchang Qian Herman A.Terryn Johannes m.c.mol Beijing Advanced Innovation centre for materials Genome Engineering Institute for Advanced Materials and TechnologyUniversity of Science and Technology BeijingBeijing 100083China Department of materials and chemistry Research Group Electrochemical and Surface EngineeringVrije Universiteit BrusselBrusselsBelgium Department of materials Science and Engineering Delft University of TechnologyDelftthe Netherlands

This study investigated the deterioration of a lubricant-infused anodic aluminium oxide surface in a 1m Nacl solution for~200 *** observation by cryo-SEm and quantitative analyses by UV spectroscopy and EIS revealed that the long-term deterioration of the lubricant-infused surface was divided into two stages:the surface-adhered lubricant layer gradually dissolved at a constant rate until the substrate was exposed;afterwards the lubricant infused in the nanochannels began to diffuse and was depleted after~200 *** EIS results also revealed that the defects reduced the corrosion resistance of the lubricant-infused surface considerably.

关键词： Lubricant-infused surface Anodic aluminium oxide Deterioration EIS

Inducing Fe 3d Electron Delocalization and Spin‑State Transition of FeN_(4) Species Boosts Oxygen Reduction Reaction for Wearable Zinc–Air Battery

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Nano-micro Letters 2023年第4期15卷 23-39页

作者： Shengmei chen Xiongyi Liang Sixia Hu Xinliang Li Guobin Zhang Shuyun Wang Longtao ma chi‑man lawrence wu chunyi Zhi Juan Antonio Zapien Department of materials Science and Engineering City University of Hong KongHong Kong 999077People’s Republic of China Sustech core Research Facilities Southern University of Science and Technology1088 Xueyuan BlvdShenzhenGuangdong 518055People’s Republic of China Frontiers Science center for Flexible Electronics Institute of Flexible ElectronicsNorthwestern Polytechnical UniversityXi’an 710072People’s Republic of China Tsinghua Shenzhen International Graduate School Tsinghua UniversityShenzhenGuangdong518055People’s Republic of China

Transition metal-nitrogen-carbon materials(m-N-cs),particularly Fe-N-cs,have been found to be electroactive for accelerating oxygen reduction reaction(ORR)*** substantial efforts have been devoted to design Fe-N-cs with increased active species content,surface area,and electronic conductivity,their performance is still far from ***,there is limited research about regulation on the electronic spin states of Fe centers for Fe-N-cs electrocatalysts to improve their catalytic ***,we introduce Ti_(3)c_(2) mXene with sulfur terminals to regulate the electronic configuration of FeN_(4) species and dramatically enhance catalytic activity toward *** mXene with sulfur terminals induce the spin-state transition of FeN_(4) species and Fe 3d electron delocalization with d band center upshift,enabling the Fe(II)ions to bind oxygen in the end-on adsorption mode favorable to initiate the reduction of oxygen and boosting oxygen-containing groups adsorption on FeN_(4) species and ORR *** resulting FeN_(4)-Ti_(3)c_(2)Sx exhibits comparable catalytic performance to those of commercial *** developed wearable ZABs using FeN_(4)-Ti_(3)c_(2)Sx also exhibit fast kinetics and excellent *** study confirms that regulation of the electronic structure of active species via coupling with their support can be a major contributor to enhance their catalytic activity.

关键词： Fe 3d electron delocalization Spin-state transition Oxygen reduction reaction Wearable zinc-air batteries

IN SITU OBSERVATION OF GROWTH BEHAVIOR AND mORPHOLOGY OF DELTA-FERRITE AS FUNcTION OF SOLIDIFIcATION RATE IN AN AISI304 STAINLESS STEEL

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Acta metallurgica Sinica(English Letters) 2006年第6期19卷 441-448页

作者： G.F.Liang c.Q.Wan J.c.wu G.m.Zhu Y.Yu Y.Fang Advanced Technology Institute Technology Center of BaosteelShanghai 201900China Department of materials Science and Engineering Shanghai Jiao Tong UniversityShanghai 200030China

It was presented the in situ observation of growth behavior and morphology of delta-ferrite as a function of solidification rate in an AISI304 stainless steel. The specimens have been solidified and observed using confocal scanning laser microscopy (cSLm). The δ-phase always appears like cells on the sample surface when critical supercooling occurs, during which the L→δ transformation starts. The solid-liquid (S-L) interface is found to be finger shaped and has no faceted shape. γ phase appears among δ grains due to partitioning of Ni into the melt during solidification, when solidification rate is higher. The mergence of observed δ cells is possible for the steel sample cooled at 7.5℃/min. The formation of dendrites can be observed on the free surface of the steel sample cooled at 150℃/min. The size of solidified delta grains decreases from 120 to 20-80μm, and the volume fraction of solidified austenite increases with increase in solidification rate from 7.5 to 150℃/min. The relation between the tip radius of δ cell and its growth rate is deduced, and the results agree with the experimental values.

关键词： stainless steel confocal scanning laser microscopy δ-ferrite in situ observation solidification

Trained immunity and macrophage reprogramming in allergic disorders

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cellular & molecular Immunology 2023年第9期20卷 1084-1086页

作者： Pei-chi chen miao-Hsi Hsieh Wen-Shuo Kuo lawrence Shih-Hsin wu Jiu-Yao Wang center for Allergy Immunologyand Microbiome(A.M.)China Medical University HospitalTaichungTaiwanChina Department of Nursing National Tainan Junior College of NursingTainanTaiwanChina school of chemistry and materials Science Nanjing University of Information Science and TechnologyNanjingChina Graduate Institute of Biomedical Sciences China Medical UniversityTaichungTaiwanChina Department of Allergy Immunologyand Rheumatology(AIR)China Medical University Children's HospitalTaichungTaiwanChina

"Practice is the hardest part of learning,and training is the essence of transformation."Ann Voskamp,One Thousand Gifts:A Dare to Live Fully Right Where YouAre Early-life exposure to environmental allergens and viral infections can lead to trained immunity and macrophage polarization resulting in an augmented type 2 immune response in allergic ***,the detailed mechanism is unknown.

关键词： immunity allergic macrophage

Influence of Grain Size and Texture on the Yield Asymmetry of mg-3Al-1Zn Alloy

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Journal of materials Science & Technology 2011年第1期27卷 29-34页

作者： S.m.Yin c.H.Wang Y.D.Diao S.D.wu S.X.Li Shenyang University of chemical Technology Shenyang 110142China Institute of metal Research Chinese Academy of SciencesShenyang 110016China

The yield asymmetry between compression and tension of magnesium alloy mg-3Al-1Zn（AZ31） with different grain sizes and textures has been studied by tensile and compressive testing of as-cast,as-extruded and equal channel angular pressed（EcAPed） *** significant yield asymmetry（the ratio of yield strength between compression and tension σyc/σyt is ～0.44） was found in as-extruded specimens and the corresponding microstructure evolution during deformation revealed that {10 ˉ 12} tensile twinning is the underlying reason for the large yield *** texture and grain size are influential factors for large yield *** separate contributions of grain size and texture on yield asymmetry were investigated.

关键词： magnesium alloys Yield asymmetry Texture Grain size Equal channel angular pressing(EcAP)

Achieving ultrahigh strength and ductility in high-entropy alloys via dual precipitation

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Journal of materials Science & Technology 2023年第35期166卷 67-77页

作者： J.m.Guo B.c.Zhou S.Qiu H.J.Kong m.c.Niu J.H.Luan T.L.Zhang H.wu Z.B.Jiao Department of mechanical Engineering Research Institute for Advanced ManufacturingThe Hong Kong Polytechnic UniversityHong KongChina The Hong Kong Polytechnic University Shenzhen Research Institute Shenzhen 518057China Department of materials Science and Engineering City University of Hong KongHong KongChina State Key Laboratory of Powder metallurgy Central South UniversityChangsha 410083China

The strength-ductility trade-offhas been a longstanding dilemma in metallic *** we report an innovative approach to achieve a high strength-ductility synergy via dual precipitation of sheared and bypassed precipitates.(Ni_(2) co_(2) Fecr)_(96-x) Al_(4) Nb_(x)(at.%)alloys strengthened by nanoscale L12 particles and Laves precipitates were selected as a model for this study,and their precipitate microstructures and mechanical properties were thoroughly *** dual-precipitation-strengthened alloys exhibit a yield strength of more than 1400 mPa,an ultimate tensile strength of over 1800 mPa,and a uniform elon-gation of 18%,thus achieving a high strength-ductility *** analysis reveals that the nanoscale L1_(2) precipitates contribute to the strength via the particle shearing mechanism,whereas the Laves phase provides the strengthening through the Orowan bypass *** study of deformation microstruc-tures shows that the L1_(2) precipitates are sheared by stacking faults,which facilitates long-range disloca-tion gliding through the *** a result,deformation induces the formation of hierarchical stacking fault networks and immobile Lomer-cottrell locks,which effectively enhance the work hardening ca-pability and plastic stability,thereby resulting in a high ductility at high strength *** are piled-up against the interface between the Laves precipitates and matrix,which increases the work hardening capability at the early stages of plastic deformation but causes stress *** dual precipitation strategy may be useful for many other alloys for achieving superior mechanical properties for technological applications.

关键词： High-entropy alloy Dual precipitation Precipitation strengthening Deformation mechanism