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Science China Chemistry 2025年第1期68卷 297-307页

作者： Bin Fang limin wang Haoqin Li Jiaxin Zhang Yang Ding Pan Pan Li Bo Peng Hua Bai Lin Li Frontiers Science Center for Flexible Electronics Xi'an Institute of Flexible Electronics (IFE) and Xi'an Institute of Biomedical Materials &Engineering Northwestern Polytechnical University Institute of Flexible Electronics (IFE Future Technologies) Xiamen University

Hepatic ischemia-reperfusion injury（HIRI） is characterized by mitochondrial dysfunction and oxidative stress. Monitoring mitochondrial hydrogen peroxide（mtH2O2） levels in real-time through super-resolution imaging is crucial for elucidating its distribution in live cells and its mechanism of action during HIRI. However, low-background fluorogenic probes have been overlooked in the context of super-resolution imaging. In this study, we developed a low-background fluorogenic probe（MitoWG） with the potential for super-resolution morphology-correlated mitochondrial identification to track the fluctuates of mtH2O2in HIRI. Activation of the desirable fluorescence properties of the probe by mtH2O2was confirmed using structural illumination microscopy（SIM）, enabling high-quality mitochondrial imaging with exceptional specificity and *** in mtH2O2levels were successfully observed in both cellular and rat models of HIRI. Furthermore, we associated the decline in mitochondrial redox homeostasis with accelerated mtH2O2production during HIRI, which triggered mitophagy deficiency and led to cell death. In conclusion, Mito-WG possesses excellent photophysical and low-background properties for SIM imaging, making it a promising tool for mtH2O2tracking in HIRI research and clinical diagnosis.

关键词： hepatic ischemia-reperfusion injury low-background mtH2O2-activatable super-resolution imaging fluorogenic probe

A dual-eddy EMMS-based turbulence model for laminar-turbulent transition prediction

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Particuology 2021年第5期19卷 285-298页

作者： Shuyu Guo limin wang State Key Laboratory of Multiphase Complex Systems Institute of Process EngineeringChinese Academy of SciencesBeijing 100190China School of Chemical Engineering University of Chinese Academy of SciencesBeijing 100049China Innovation Academy for Green Manufacture Chinese Academy of SciencesBeijing 100190China

Turbulence is a century-old physics problem,and the prediction of laminar-turbulent transition remains a major challenge in computational fluid dynamics(CFD).This paper proposes a new conceptual multiscale-structure flow system consisting of a nonturbulent part and two types of turbulent eddies with different *** stability criterion for turbulent transition flows,based on the principle of compromise-in-competition between viscosity and inertia,is used to obtain model *** multiscale-structure concept and stability criterion are the characteristics of the dual-eddy energy-minimization multiscale(EMMS)-based turbulence *** solved heterogeneous structure parameters and energy dissipation rate are analyzed,which reveal the laminar-turbulent transition *** validate the dual-eddy EMMS-based turbulence model,three benchmark problems,namely,the transitional flows over the flat plate boundary layer with zero pressure gradient,NACA0012,and Aerospatiale-A airfoils,were *** simulation was performed by combining the optimized results from the proposed model with the equations of the well-known κ-ω shear stress transfer(SST)turbulence *** numerical results show that the dual-eddy EMMS-based turbulence model improves the prediction in the laminar-turbulent transition *** demonstrates the soundness of using the multiscale-structure concept in turbulent flows to establish the turbulence transition model by considering the principle of compromise-in-competition between viscosity and inertia.

关键词： Turbulent flows Laminar-turbulent transition EMMS Turbulence model Multiscale structure

Electrochemical activation of oxygen atom of SnO2 to expedite efficient conversion reaction for alkaline-ion(Li+/Na+/K+)storages

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Nano Research 2023年第1期16卷 1642-1650页

作者： Yong Cheng Bingbing Chen limin Chang Dongyu Zhang Chunli wang Shaohua wang Ping Nie limin wang Key Laboratory of Preparation and Applications of Environmental Friendly Materials(Jilin Normal University) Ministry of EducationChangchun 130103China State Key Laboratory of Rare Earth Resource Utilization Changchun Institute of Applied ChemistryCASChangchun 130022China Department of Energy Science and Engineering Nanjing Tech UniversityNanjing 210000China State Key Laboratory of Metastable Materials Science and Technology Yanshan UniversityQinhuangdao 066004China

SnO2-based anode materials have attracted much attention due to high capacity and relatively mild voltage ***,limited by low initial Coulombic efficiency(ICE)and poor stability,its practical application is still ***,it has been found that compositing carbon or metal particles with SnO2 is an effective strategy to achieve high alkaline-ion *** this strategy may improve the kinetics and ICE of the electrochemical reaction,the specific mechanism has not been clearly *** this work,we found that the invalidation SnO2 may go through two steps:1)the conversion process from SnO2 to Sn and Li2O;2)the collapse of the electrode material resulted from huge volume changes during the alloyed Sn with alkaline *** address these issues,a unique robust Co-NC shell derived from ZIF-67 is introduced,in which the transited metallic Co nanoparticles could accelerate the decomposition of Sn-O and Li-O bonds,thus expedite the kinetics of conversion *** a result,the SnO2@Co-NC electrode achieves a more complete and efficient transfer between SnO2 and Sn phases,possessing a potential to achieve high alkaline-ion(Li+/Na+/K+)storages.

关键词： alkaline-ion storage SnO2 anode conversion reaction electron transfer

Unified stability condition for particulate and aggregative fluidization—Exploring energy dissipation with direct numerical simulation

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Particuology 2013年第2期11卷 232-241页

作者： Min Wei limin wang Jinghai Li The EMMS Group State Key Laboratory of Multiphase Complex SystemsInstitute of Process EngineeringChinese Academy of Sciences University of Chinese Academy of Sciences

Fully resolved simulations of particulate and aggregative fluidization systems are performed suc-cessfully with the so-called combined lattice Boltzmann method and time-driven hard-sphere model （LBM-TDHS）. In this method, the discrete particle phase is described by time-driven hard-sphere model, and the governing equations of the continuous fluid phase are solved with lattice Boltz-mann method. Particle-fluid coupling is implemented by immersed moving boundary method. Time averaged flow structure of the simulated results show the formation of core-annulus structure and sigmoid distribution of voidage in the axial direction, which are typical phenomena in fluidization systems. Combining the results of the simulation, the energy consumption Nst for suspending and transporting solids is calculated from the direct numerical simulation （DNS） of fluidization, and the stability criterion Nst/NT = rain proposed in EMMS/bubbling model is verified numerically. Further-more the numerical results show that the value of Nst/NT in particulate fiuidization is much higher than that in aggregative fluidization, but Nst/NT = rain is effective for both particulate and aggregative fluidization.

关键词： Direct numerical simulation Fluidization Stability condition Lattice-Boltzmann method Time-driven hard-sphere model

The Effect of Money-Back Guarantee and Customer Value on Dual-Channel Supply Chain

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Journal of Systems Science and Systems Engineering 2019年第5期28卷 636-654页

作者： limin wang Qiankun Song Zhenjiang Zhao School of Economics and Management Chongqing Jiaotong University Chongqing 400074 China Department of Mathematics Chongqing Jiaotong University Chongqing 400074 China Department of Mathematics Huzhou University Huzhou 313000 China

This paper investigates the effect of money-back guarantee (MBG) and customer value on dualchannel supply *** could produce and sell old generation product by direct channel to compete with new generation product by retail *** retailer and manufacturer could choose whether implementing the MBG strategy or *** paper discusses whether manufacturer should open the direct channel,how to make MBG strategy to realize maximum profits,and how customer value influences the supply *** give the boundary conditions of four situations about the decisions of retailer and manufacturer GG situation,GN situation,NG situation and NN *** find that MBG strategy by retailer brings higher retail unit price,MBG strategy by manufacturer brings higher direct unit price and influences the wholesale price by the net salvage value of new generation *** paper shows that if the demand was positive,opening the direct channel always benefits the ***,customer value affects demands of two channels and the threshold value of parameter is given in this paper.

关键词： Money-back guarantee customer value dual-channel supply chain product choice

Crystallographic and electrochemical characteristics of melt-spun Ti-Zr-Ni-Cu alloys

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Rare Metals 2007年第5期26卷 440-444页

作者： LIU Baozhong WU Yaoming wang limin State Key Laboratory for Application of the Rare Earth Resources Changchun Institute of Applied Chemistry Chinese Academy of Sciences Changchun 130022 China Graduate School of Chinese Academy of Sciences Beijing 100049 China

Ti44Zr32Ni22Cu2 and Ti41Zr29Ni28Cu2 alloys were prepared by the melt-spinning method. The phase structure was analyzed by X-ray diffraction,and the electrochemical performances of the melt-spun alloys were investigated. The results indicated that the Ti44Zr32Ni22Cu2 alloy was composed of the icosahedral quasicrystals and amorphous phases,and the Ti41Zr29Ni28Cu2 alloy comprised icosahedral quasicrystals,amorphous,and Laves phases. The maximum discharge capacity was 141 mAh/g for the Ti44Zr32Ni22Cu2 alloy and 181 mAh/g for the Ti41Zr29Ni28Cu2 alloy,respectively. The Ti41Zr29Ni28Cu2 alloy also showed a better high-rate dischargeability and cycling stability. The better electrochemical properties should be ascribed to the high content of Ni,which was beneficial to the electrochemical kinetic properties and made the alloy more resistant to oxidation,as well as to the Laves phase in the Ti41Zr29Ni28Cu2 alloy,which could work as the electro-catalyst and the micro-current collector.

关键词： metal-hydride electrodes electrochemical properties icosahedral quasicrystal Ti-Zr-Ni-Cu alloy

A study on comprehensive recycling of waste diamond tools

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Rare Metals 2012年第1期31卷 88-91页

作者： wang, limin Zhang, Guocheng Ma, Fei General Research Institute for Nonferrous Metals Beijing 100088 China General Research Institute for Powder Metals Advanced Materials Co. Ltd Beijing 101407 China

This article puts forward a new method of recycling materials in diamond tools comprehensively and efficiently by means of analyzing and summarizing various methods of recycling waste diamond *** the waste diamond tools were decomposed in a mixed acid,metals contained in it went into solution in their ionic forms,while diamond and tungsten carbide particles formed into residues to be *** amounts of metal ions in the leaching solution were adjusted according to the contents of metals in the diamond tools;then,the leaching solution was co-precipitated using oxalic acid as precipitation agent,and ammonia water was added to adjust the pH value of the oxalic *** the right conditions,the comprehensive precipitation rate of metals reached above 98%.Finally,ultrafine pre-alloy powder was obtained by hydrogen reduction of oxalate.

关键词： diamond tools leaching co-precipitation hydrogen reduction

Sn-based Intermetallic Compounds for Li-ion Batteries: Structures, Lithiation Mechanism, and Electrochemical Performances

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Energy & Environmental Materials 2018年第3期1卷 132-147页

作者： Zheng Yi Zhaomin wang Yong Cheng limin wang State Key Laboratory of Rare Earth Resource Utilization Changchun Institute of Applied ChemistryCASChangchun 130022China Department of Chemistry University of Science and Technology of ChinaHefei 230026China Key Laboratory of Preparation and Application of Environmental Friendly Materials Jilin Normal UniversityChangchun 130103China

On account of the lower theoretical capacity of the traditional graphite,the development of reliable anode materials with high capacity and energy density for application in lithium-ion batteries(LIBs)is zealously pur... 详细信息

关键词： anode materials lithiation mechanism lithium-ion batteries review Sn

Annealing-induced Grain Refinement in a Nanostructured Ferritic Steel

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Journal of Materials Science & Technology 2012年第1期28卷 41-45页

作者： limin wang Zhenbo wang Sheng Guo Ke Lu Sheng Guo and Ke Lu Shenyang National Laboratory for Materials Science Institute of Metal ResearchChinese Academy of Sciences72 Wenhua RoadShenyang 110016China

A nanostructured surface layer with a mean ferrite grain size of -8 nm was produced on a Fe-gCr steel by means of surface mechanical attrition treatment. Upon annealing, ferrite grains coarsen with increasing temperature and their sizes increase to -40 nm at 973 K. Further increasing annealing temperature leads to an obvious reduction of ferrite grain sizes, to -14 nm at 1173 K. The annealing-induced grain refinement is analyzed in terms of phase transformations in the nanostructured steel.

关键词： Nanostructured Surface mechanical attrition treatment (SMAT) Ferritic steel Grain refinement Austenitization

Carbon Supported MoO_(2) Spheres Boosting Ultra-Stable Lithium Storage with High Volumetric Density

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Energy & Environmental Materials 2022年第1期5卷 245-252页

作者： Chunli wang Lianshan Sun Bingbing Tian Yong Cheng limin wang SZU-NUS Collaborative Innovation Center for Optoelectronic Science&Technology International Collaborative Laboratory of 2D Materials for Optoelectronic Science and Technology of Ministry of EducationCollege of Optoelectronic EngineeringShenzhen UniversityShenzhen 518060China Institute for Energy Research Jiangsu UniversityXuefu Road 301Zhenjiang China State Key Laboratory of Rare Earth Resource Utilization Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun 130022China

As important ingredients in lithium-ion battery,the Coulombic efficiency and power density greatly impact the electrochemical *** recent literatures have reported nano-porous materials to enhance the specific capacities,intrinsic drawbacks such as poor initial Coulombic efficiency and low volumetric capacity could not be ***,we propose a strategy to prepare carbon supported MoO_(2)spheres used for lithium-ion battery with high volumetric capacity density.A high initial Coulombic efficiency of 76.5%is obtained due to limited solid electrolyte interface film formed on the exposed ***,the sample with an optimal carbon content and a proper structural strength reveals a higher reversible capacity of 956 mA h g^(-1)than the theoretical capacity of crystalline Mo O_(2)(838 mA h g^(-1))and a high capacity retention ratio of 96.4%after 100 cycles at 0.5 A g^(-1).And an effective compaction capacity density(under 5 MPa)of 670 mA h cm^(-3)of the spheres proves its potential value in practical applications.

关键词： high volumetric density lithium-ion battery MoO_(2)spheres optimal carbon content