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Every Weakly Compact Set Can Be Uniformly Embedded into a Reflexive Banach Space

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Acta Mathematica Sinica,English Series 2009年第7期25卷 1109-1112页

作者： Li Xin CHENG Qing Jin CHENG Zheng Hua luo wen ZHANG Department of Mathematics Xiamen University Xiamen 361005 P. R. China

Based on an application of the Davis-Figiel-Johnson-Pelzyski procedure, this note shows that every weakly compact subset of a Banach space can be uniformly embedded into a reflexive Banach space. As its application, we present the recent renorming theorems for reflexive spaces of Odell- Schlumprecht and Hajek-Johanis can be extended and localized to weakly compact convex subsets of an arbitrary Banach space.

关键词： Banach space weakly compact set renorming

Mn Diffusion at Early Stage of Intercritical Annealing of 5Mn Steel

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Journal of Iron and Steel Research International 2015年第11期22卷 1015-1019页

作者： Xi-nan luo Xiao-yan ZHONG Hai-wen luo Hui-hua ZHOU Cun-yu WANG Jie SHI Beijing National Center for Electron Microscopy Laboratory of Advanced Materials (MOE) The State Key Laboratory of New Ceramics and Fine Processing School of Materials Science and Engineering Tsinghua University School of Metallurgical and Ecological Engineering University of Science and Technology Beijing Central Iron and Steel Research Institute

Mn distribution and austenite morphology at the early stage of intercritical annealing of 5Mn steel were investigated. It was experimentally demonstrated that a newly formed 20 nm-thick austenite was formed without the partitioning of Mn. The elemental analysis confirmed that the growth of austenite should be controlled by the diffusion of C prior to the diffusion of Mn at a low heating rate. The austenite growth started under negligible-partitioning local equilibrium mode and then switched to partitioning local equilibrium mode. Mn segregation at the γ/α interface suggested that the collector plate mechanism was the essential way of Mn partitioning at the early stage of austenite growth.

关键词： Mn diffusion austenite nucleation intercritical annealing negligible-partitioning local equilibrium diffusion mechanism

Generalized Coupled-Mode Formulation for Sound Propagation in Range-Dependent Waveguides

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Chinese Physics Letters 2012年第1期29卷 168-171页

作者： luo wen-Yu YANG Chun-Mei ZHANG Ren-He State Key Laboratory of Acoustics Institute of AcousticsChinese Academy of SciencesBeijing 100190 Graduate University of Chinese Academy of Sciences Beijing 100049

An accurate and numerically stable method based on the coupled-mode theory is *** applying the direct global matrix approach to obtain the modal expansion coefficients,this method is numerically *** addition,appropriately normalized range solutions are introduced,which resolves the overflow problem ***,we put forward source conditions appropriate for the line-source problem in plane *** a result,this method is capable of dealing with the scenario where a line source is located inside the region of a ***-form expressions for coupling matrices are provided for ideal *** results indicate that the present method is accurate and numerically ***,this model can serve as a benchmark in range-dependent propagation modeling.

关键词： deformation. entirely dealing

Light tuning CO/H_(2)composition on Ag:Unraveling CO_(2)mass transfer and electron-phonon coupling in plasmon-enhanced electrocatalysis

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Nano Research 2025年第1期18卷 173-185页

作者： Rui Lin Dong Fan Luca MBerger Thomas Possmayer Yu Zhou Jiexin Zhu Xingbao Chen wen luo Lars Allmendinger Andreas Tittl Leonardo de Souza Menezes Guillaume Maurin Shihe Yang and Stefan AMaier Nanoinstitute Munich Faculty of PhysicsLudwig-Maximilians-Universität München80539 MunichGermany Institut Charles Gerhardt Montpellier UMR 5253 CNRS ENSCM UniversitéMontpellierPlace E.Bataillon34090 MontpellierFrance Guangdong Provincial Key Lab of Nano-Micro Material Research School of Advanced MaterialsPeking University Shenzhen Graduate SchoolShenzhen 518055China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China Faculty of Chemistry and Pharmacy Ludwig-Maximilians-Universität München81377 MunichGermany Departamento de Física Universidade Federal de Pernambuco50670-901 Recife-PEBrazil School of Physics and Astronomy Monash University Clayton CampusMelbourneVictoria 3800Australia Department of Physics Imperial College LondonSW72AZ LondonUK

Plasmon-enhanced electrocatalysis(PEEC)is an emerging approach to mitigate CO_(2)*** mechanisms behind CO_(2)adsorption and reduction at the catalyst-electrolyte interface in PEEC still need to be further ***,we employ a well-defined Ag nanostructure to elucidate these pivotal *** shining light with wavelengths of 625,525,405 nm on Ag,an adjustable CO/H_(2)ratio from 35 to 1 can be *** reaction pathway changing under plasmonic excitation does not originate from the lowered CO_(2)mass transfer in the vicinity of Ag,as the electrochemical quartz crystal microbalance results unravel that a slightly elevated temperature in bulk electrolyte caused by light irradiation cannot weaken the CO_(2)adsorption at the Ag catalyst-electrolyte *** calculations reveal that optical excitation towards shorter wavelengths leads to a progressive lowered energy barrier for H_(2)formation together with an enhanced energy barrier for^(*)COOH *** thermodynamically suppressed,CO_(2)reduction can still be improved kinetically by optimizing the excitation wavelength and intensity,being accompanied with the enhanced *** absorption spectroscopy results further correlate the higher photocurrent with a prolonged electron-phonon coupling time,verifying that the improvement of CO_(2)reduction kinetics in PEEC can be realized by hot electron harnessing.

关键词： plasmonic catalysis photoelectrochemical CO_(2)reduction CO/H_(2)ratio hot electron generation electronphonon coupling thermal effect

Double-lipase Catalyzed Synthesis of Kojic Dipalmitate in Organic Solvents

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Chemical Research in Chinese Universities 2017年第6期33卷 903-907页

作者： WANG Zhiyuan luo wen FU Junying LI Zhibing WANG Zhongming LU Pengmei Key Laboratory of Renewable Energy of Chinese Academy of Sciences Guangdong Key Laboratory of New and Renewable Energy Research and Development Guangzhou Institute of Energy Conversion Chinese Academy of Sciences Guangzhou 510640 P. R. China

Kojic dipalmitate（KDP） was synthesized by the way of esterification ofpalmitic and kojic acids in organic solvent, with double-lipase as the biocatalyst. Four commercially available lipases（Amano PS, Novozym 435, Lipozyme TL IM and Lipozyme RM IM） were used to group six double-lipase combinations. These combinations were studied and Amano PS-Novozym 435 was found to have the best efficiency and was selected for optimizing the reaction conditions. The optimal reaction conditions were as follows. The mass ratio ofAmano PS to Novozyme 435 was 1：1.5, with stirring speed of 500 r/min, substrates molar ratio of 1：2, 50 ℃, 5%（mass fraction） catalyst dosage of kojic acid quantity and using acetone as co-solvent. Under these conditions, the diesterification of C5 and C7 hydroxyl groups of kojic acid molecule could be well catalyzed by double-lipase and realize a high KDP yield of 85%.

关键词： Kojic acid Palmitic acid Kojic dipalmitate Double-lipase catalysis Diesterification

Modeling decarburization kinetics of grain-oriented silicon steel

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Chinese Science Bulletin 2014年第15期59卷 1778-1783页

作者： Hai-wen luo Rui Xiang Ling-Feng Chen Li-Mei Pan Research Center of Electrical Steels Central Iron & Steel Research Institute School of Materials Engineering and Science University of Science and Technology Beijing Department of Silicon Steels Qian’an Iron & Steel Corp. ShouGang Group

A mathematic model has been presented to predict the decarburization kinetics of grain-oriented silicon steel sheet in the gas mixture of N2–H2–H2O during *** model is based on the carbon flux balance between the oxidation reaction at the surface and the carbon diffusion inside the steel *** can be numerically solved to quantify the influences of annealing temperature and atmosphere on decarburization kinetics when the boundary conditions are properly *** case that a humid gas mixture is employed during annealing,the most influential process parameter is temperature rather than compositions of the gas mixture,because the diffusion of carbon in ferrite is the rate-limiting ***,a higher temperature is required for the efficient decarburization of the thicker silicon steel sheet using the industrial continuous annealing production line.

关键词：取向硅钢晶粒取向动力学脱碳连续退火生产线气体混合物建模退火温度

Application of in-situ characterization techniques in modern aqueous batteries

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Rare Metals 2024年第8期43卷 3553-3575页

作者： Jia-Hao Wu Hong-Wei Cai Zhao-Hui Deng Jean-Jacques Gaumet Yu Bao wen luo Department of Physics State Key Laboratory of Advanced Technology for Materials Synthesis and ProcessingSchool of Materials Science and EngineeringWuhan University of TechnologyWuhan430070China Laboratoire de Chimie Et Physique:Approche Multi-Echelles Des Milieux Complexes(LCP-A2MC)Institut Jean BarriolUniversitéde Lorraine57070MetzFrance Department of Medicinal Chemistry Hubei College of Chinese MedicineJingzhou 434020China

The development of high-performance aqueous batteries calls for an in-depth knowledge of their chargedischarge redox and failure mechanism,as well as a systematic understanding of the dynamic evolution of microstructure,phase composition,chemical composition,and local chemical environment of the materials for ***-situ characterization technology is expected to understand and reveal the problems faced by aqueous rechargeable batteries,such as the dissolution of electrode materials,the growth of metal negative electrode dendrites,passivation,corrosion,side reactions and a series of *** on this,typical in-situ characterization techniques and their basic mechanisms are summarized,including in-situ optical visualization,in-situ microscopy techniques(in-situ scanning electron microscopy(SEM),in-situ transmission electron microscopy(TEM)),in-situ X-ray techniques(in-situ X-ray diffraction(XRD),in-situ X-ray photoelectron spectroscopy(XPS),in-situ near-edge structural X-ray absorption spectroscopy(XANES)),and in-situ spectroscopy techniques(in-situ Raman spectroscopy,in-situ Fourier transform infrared(FTIR)).Moreover,some emerging techniques concerning aqueous battery research,especially gas evolution and materials dissolution issues,such as in-situ electrochemical quartz crystal microbalance(EQCM).in-situ fiber-optic sensing,in-situ gas chromatography(GC) are *** last,the applications of advanced in-situ characterizations in future research of aqueous batteries are emphasized and discussed,along with some of the remaining challenges and possible solutions.

关键词： Aqueous battery In-situ characterization Phase transformation Solid electrolyte interphase Zinc dendrite growth

A high-concentrated and nonflammable electrolyte for potassium ion-based dual-graphite batteries

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Nano Research 2023年第5期16卷 6353-6360页

作者： Kexin Li Guiyou Ma Dandan Yu wen luo Jiaxin Li Laishun Qin Yuexiang Huang Da Chen College of Materials and Chemistry China Jiliang UniversityHangzhou 310018China Liangxin College China Jiliang UniversityHangzhou 310018China

Potassium ion-based dual-graphite batteries(KDGBs)emerge as promising devices for large-scale applications due to their high voltage,low cost,environmental ***,conventional KPF6/carbonate-based electrolytes suffer from severe oxidation decomposition,low concentration,flammability,which limit the capacity and cyclability of ***,a nonflammable potassium bis(fluorosulfonyl)imide/triethyl phosphate(KFSI/TEP)electrolyte was designed for *** the salt-to-solvent molar ratio increases to 1:1.3,graphite cathode operated at the cut-off potential of 5.2 V exhibits much enhanced capacity,excellent rate capability(26.4 mAh∙g^(−1) at 1.0 A∙g^(−1)),superior cyclability with 98%capacity retention after 350 *** compounds-rich electrode/electrolyte interphase layers derived from the preferential decomposition of FSI−anions ensure good compatibility of the 1:1.3 KFSI/TEP electrolyte with K metal and graphite *** on this electrolyte,asassembled KDGBs show high operation voltage of 4.3 V and good cycling *** work provides feasibility for developing long-life and safe-operation DGBs.

关键词： dual-ion batteries graphite high voltage high-concentrated electrolytes phosphates

MiR-183-5p promotes the progression of non-small cell lung cancer through targeted regulation of FOXO1

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Oncology and Translational Medicine 2023年第3期9卷 121-132页

作者： Yan Deng Zhengguang He Xiaobin luo Rong Qiu Yong Zhao wen luo Department of Respiratory and Critical Care Medicine Suining Central HospitalSuining 629000China

Objective To investigate miR-183-5p targeting to forkhead box protein O1(FOXO1)and its corresponding effect on the proliferation,migration,invasion,and epithelial-mesenchymal transition(EMT)of non-small cell lung cancer(NSCLC)*** NSCLC tissues and adjacent normal tissues from 60 patients with NSCLC adenocarcinoma were obtained via pathological biopsy or intraoperative *** cell lines were cultured in vitro,including the human normal lung epithelial cell line BEAS-2B and human NSCLC cell lines A549,SPCA-1,PC-9,and ***-183-5p and FOXO1 mRNA expression in tissues and cells were detected by qRT-PCR;the corresponding correlations in NSCLC tissues were analyzed using the Pearson test,and the relationship between miR-183-5p expression and clinicopathological parameters was *** miR-183-5p-mediated regulation of FOXO1 was verified by bioinformatics prediction alongside double luciferase,RNA-binding protein immunoprecipitation(RIP)assay,and pull-down experiments.A549 cells were divided into control,anti-miR-NC,anti-miR-183-5p,miR-NC,miR-183-5p,miR-183-5p+pcDNA3.1,and miR-183-5p+pcDNA3.1-FOXO1 *** proliferation,invasion,migration,apoptosis,and cell cycle distribution were detected using an MTT assay,clone formation assay,Transwell assay,scratch test,and flow cytometry,*** expression of EMT-related proteins in the cells was analyzed by western *** effect of miR-185-3p silencing on the development of transplanted tumors was detected by analyzing tumor formation in nude *** miR-183-5p expression was significantly higher in NSCLC tissues and cells than in adjacent normal tissues,whereas FOXO1 mRNA expression was significantly *** was a significant negative correlation between miR-183-5p and FOXO1 mRNA in NSCLC tissues(P<0.05).Additionally,the expression of miR-183-5p was significantly correlated with tumor size,tumor differentiation,and tumor-node-metastasis stage in patients with NSCLC(P<

关键词： non-small cell lung cancer miR-183-5p forkhead box protein O1 malignant biological behavior targeted regulation