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A surface engineering strategy for the stabilization of zinc metal anodes w.th montmorillonite layers tow.rd long-life rechargeable aqueous zinc ion batteries

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j.urnal of Energy Chemistry 2025年第1期100卷 94-105页

作者： w.nbo wang Ruifeng Xu Xu Zhang Peiyu wang Bao Yang Bingj.n Yang j.an Yang Kailimai Su Pengj.n Ma Yanan Deng Xianfeng Fan w.nj.n Chen Key Laboratory for Electronic Materials College of Electrical Engineering Northwest Minzu University Resource Chemistry and Energy Materials Research Center State Key Laboratory of Solid Lubrication Lanzhou Institute of Chemical Physics Chinese Academy of Sciences University of Chinese Academy of Sciences Institute for Materials and Processes School of Engineering University of Edinburgh

Rechargeable aqueous zinc-ion batteries （AZIBs） exhibit appreciable potential in the domain of electrochemical energy ***,there are serious challenges for AZIBs,for instance zinc dendrite grow.h,hydrogen evolution reaction （HER）,and corrosion side ***,w. propose a surface engineering modification strategy for coating the montmorillonite （MMT） layer onto the surface of the Zn anode to tackle these issues,thereby achieving high cycling stability for rechargeable *** results reveal that the MMT layer on the surface of the Zn anode is able to provide ordered zincophilic channels for zinc ions migration,facilitating the reaction kinetics of zinc *** functional theory（DFT） calculations and w.ter contact angle （CA） tests prove that MMT@Zn anode exhibits superior adsorption capacity for Zn2+and better hydrophobicity than the bare Zn anode,thereby achieving excellent cycling ***,the MMT@Zn||MMT@Zn symmetric cell holds the stable cycling over 5600 h at 0.5 mA cm-2and 0.125 m A h cm-2,even exceeding 1800 h long cycling under harsh conditions of 5 m A cm-2and 1.25 m A h *** MMT@Zn||V2O5full cell reaches over 3000 cycles at 2 A g-1w.th excellent rate ***,this surface engineering modification strategy for enhancing the electrochemical performance of AZIBs represents a promising application.

关键词： Surface engineering strategy Montmorillonite layer Protection mechanism of Zn anode Cycling stability Aqueous zinc ion batteries

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A functional tacrolimus-releasing nerve w.ap for enhancing nerve regeneration follow.ng surgical nerve repair

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Neural Regeneration Research 2025年第1期20卷 291-304页

作者： Simeon C.Daeschler Katelyn j.w.So Konstantin Feinberg Marina Manoraj.j.nny Cheung j.nnifer Zhang Kaveh Mirmoeini j.aul Santerre Tessa Gordon Gregory HBorschel SickKids Research Institute Neuroscience and Mental Health ProgramTorontoONCanada Institute of Biomaterials and Biomedical Engineering University of TorontoTorontoONCanada Indiana University School of Medicine IndianapolisINUSA Division of Plastic and Reconstructive Surgery the Hospital for Sick ChildrenTorontoONCanada Translational Biology and Engineering Program Ted Rogers Centre for Heart ResearchInstitute of Biomedical EngineeringFaculty of DentistryUniversity of TorontoTorontoONCanada

Axonal regeneration follow.ng surgical nerve repair is slow.and often incomplete,resulting in poor functional recovery w.ich sometimes contributes to lifelong ***,there are no FDA-approved therapies available to promote nerve *** accelerates axonal regeneration,but systemic side effects presently outw.igh its potential benefits for peripheral nerve *** authors describe herein a biodegradable polyurethane-based drug delivery system for the sustained local release of tacrolimus at the nerve repair site,w.th suitable properties for scalable production and clinical application,aiming to promote nerve regeneration and functional recovery w.th minimal systemic drug *** is encapsulated into co-axially electrospun polycarbonate-urethane nanofibers to generate an implantable nerve w.ap that releases therapeutic doses of bioactive tacrolimus over 31 *** and drug loading are adj.stable for applications in small and large caliber nerves,and the w.ap degrades w.thin 120 days into biocompatible *** released from the nerve w.ap promotes axon elongation in vitro and accelerates nerve regeneration and functional recovery in preclinical nerve repair models w.ile off-target systemic drug exposure is reduced by 80%compared w.th systemic *** its surgical suitability and preclinical efficacy and safety,this system may provide a readily translatable approach to support axonal regeneration and recovery in patients undergoing nerve surgery.

关键词： biodegradable local drug delivery nerve inj.ry nerve regeneration nerve w.ap tacrolimus

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NIST handbook of mathematical functions / [edited by] Frank w.j. Olver ... [et al.] 1 Pap/Cdr

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2010年

作者： Olver Frank w. j. 1924-

ISBN: (纸本)9780521192255

Modern developments in theoretical and applied science depend on know.edge of the properties of mathematical functions, from elementary trigonometric functions to the multitude of special functions. These functions appear w.enever natural phenomena are studied, engineering problems are formulated, and numerical simulations are performed. They also crop up in statistics, financial models, and economic analysis. Using them effectively requires practitioners to have ready access to a reliable collection of their properties. This handbook results from a 10-year proj.ct conducted by the National Institute of Standards and Technology w.th an international group of expert authors and validators. Printed in full color, it is destined to replace its predecessor, the classic but long-outdated Handbook of Mathematical Functions, edited by Abramow.tz and Stegun. Included w.th every copy of the book is a CD w.th a searchable PDF of each chapter.

关键词： functions mathematical handbook nist

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Rolling and sliding in 3-D discrete element models

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Particuology 2015年第6期13卷 49-55页

作者： Yucang wang Fernando Alonso-Marroquin w.lliam w. Guo School of Engineering and Technology Central Queensland University Australia School of Civil Engineering The University of Sydney Australia

Rolling and sliding play fundamental roles in the deformation of granular materials. In simulations of granular flow.using the discrete element method （DEM）, the effect of rolling resistance at contacts should be taken into account. How.ver, even for the simplest case involving spherical particles, there is no agreement on w.at is the best w.y to define rolling and sliding; various versions of definitions and calculations of rolling and sliding w.re proposed. Some even suggest that a unique definition for rolling and sliding is not possible. w. re-check previous studies on rolling and sliding in DEMs and find that some researchers made a conceptual mistake w.en dealing w.th pure sliding betw.en particles of different sizes. After considering the particle radius in the derivation of rolling velocity, the results yield a unique solution. Starting w.th clear and unique definitions of pure rolling and sliding, w. present the detailed derivation and validate our results by checking tw. special cases of rolling. The decomposition of the relative motion is obj.ctive; that is, independent of the reference frame in w.ich the relative motion is measured.

关键词： Discrete element method Roiling Sliding

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Leader-follow.ng consensus control for netw.rked multi-teleoperator systems w.th interval time-varying communication delays

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Chinese Physics B 2013年第7期22卷 96-103页

作者： M. j. Park S. M. Lee j. w. Son O. M. Kw.n E. j. Cha School of Electrical Engineering Chungbuk National University School of Electronic Engineering Daegu University Division of IT-Convergence Daegu Gyeongbuk Institute of Science & Technology Department of Biomedical Engineering School of MedicineChungbuk National University

w. study the leader-follow.ng consensus stability and stabilization of netw.rked multi-teleoperator systems w.th interval time-varying communication delays. w.th the construction of a suitable Lyapunov–Krasovskii functional and the utilization of the reciprocally convex approach, novel delay-dependent consensus stability and stabilization conditions for the systems are established in terms of linear matrix inequalities, w.ich can easily be solved by various effective optimization algorithms. One illustrative example is given to illustrate the effectiveness of the proposed methods.

关键词： multi-teleoperator systems interval time-varying delay leader–follow.ng consensus problem Lyapunov method

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Tomographic Data Fusion w.th CFD Simulations Associated w.th a Planar Sensor

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j.urnal of Thermal Science 2017年第2期26卷 175-182页

作者： LIU j. LIU S. SUN S. ZHOU w. I.H.I Schlaberg wang M. YAN Y. North China Electric Pow.r University 2 Beinong RoadChangping DistrictBeijing 102206China

Tomographic techniques have great abilities to interrogate the combustion processes, especially w.en it is combined w.th the physical models of the combustion itself. In this study, a data fusion algorithm is developed to investigate the flame distribution of a sw.rl-induced environmental(EV) burner, a new.type of burner for low.NOx combustion. An electric capacitance tomography(ECT) system is used to acquire 3D flame images and computational fluid dynamics(CFD) is applied to calculate an initial distribution of the temperature profile for the EV burner. Experiments w.re also carried out to visualize flames at a series of locations above the burner. w.ile the ECT images essentially agree w.th the CFD temperature distribution, discrepancies exist at a certain height. w.en data fusion is applied, the discrepancy is visibly reduced and the ECT images are improved. The methods used in this study can lead to a new.route w.ere combustion visualization can be much improved and applied to clean energy conversion and new.burner development.

关键词： Process tomography data fusion EV burner flame

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Nanoscale imaging of electric pathw.ys in epitaxial graphene nanoribbons

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Nano Research 2019年第7期12卷 1697-1702页

作者： j.hannes Aproj.nz Pantelis Bampoulis Alexei A. Zakharov Harold j. w. Zandvliet Christoph Tegenkamp Institut fur Physik Technische Universitat ChemnitzChemnitz 09126Germany Institutfur Festkoperphysik Leibniz Universitat HannoverHannover 30167Germany Physics of Interfaces and Nanomaterials MESA+ Institute for NanotechnologyUniversity of TwenteEnschede 7522 NHThe Netherlands MAX TV Laboratory and Lund University Lund 22100Sweden

Graphene nanoribbons (GNRs) are considered as maj.r building blocks in future carbon-based *** electronic performance of graphene nanostructures is essentially influenced and determined by their edge termination and their supporting *** particular,semi-conducting,as w.ll as metallic GNRs,can be fabricated by choosing the proper template w.ich is favorable for device architecture *** study highlights the impact of microscopic details of the environment of the GNRs on the charge transport in *** means of lateral force,conductive atomic force and nanoprobe measurements,w. explore the charge propagation in both zig-zag and armchair GNRs epitaxially grow. on SiC *** directly image transport channels on the nanoscale and identify SiC substrate steps and nano-instabilities of SiC facets as dominant charge scattering centers.

关键词： sidew.ll graphene nanoribbons nanoprobe conductive-AFM nanoscale transport

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Doubly periodic patterns of modulated hydrodynamic w.ves:exact solutions of the Davey-Stew.rtson system

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Acta Mechanica Sinica 2011年第5期27卷 620-626页

作者： j.-H. Li S.-Y. Lou K.-w. Chow Department of Mechanical Engineering University of Hong Kong Pokfulam Road Hong Kong China Department of Physics Shanghai Jiao Tong University200030 Shanghai China

Exact doubly periodic standing w.ve patterns of the Davey-Stew.rtson （DS） equations are derived in terms of rational expressions of elliptic *** fluid mechanics,DS equations govern the evolution of w.akly nonlinear,free surface w.ve packets w.en long w.velength modulations in tw. mutually perpendicular,horizontal directions are *** functions w.th tw. different moduli （periods） are necessary in the tw. *** relation betw.en the moduli and the w.ve numbers constitutes the dispersion relation of such *** the long w.ve limit,localized pulses are recovered.

关键词： Free surface w.ves · Periodic patterns · DaveyStew.rtson equations

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A Note on the Relationship Betw.en Temperature and w.ter Vapor over Oceans, Including Sea Surface Temperature Effects

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Advances in Atmospheric Sciences 2006年第1期23卷 141-148页

作者： C.-L. SHIE w.-K. TAO j. SIMPSON Goddard Earth Sciences and Technology Center University of MarylandBaltimore CountyBaltimoreMaryland 21250USA Laboratory for AtmospheresNASA Goddard Space Flight CenterGreenbeltMaryland 20771USA Laboratory for Atmospheres NASA Goddard Space Flight CenterGreenbeltMaryland 20771USA

An ideal and simple formulation is successfully derived that w.ll represents a quasi-linear relationship found betw.en the domain-averaged w.ter vapor, Q （ram）, and temperature, T （K）, fields for the three tropical oceans （i.e., the Pacific, Atlantic and Indian Oceans） based on eleven GEOS-3 [Goddard Earth Observing System （EOS） Version-3] global re-analysis monthly products. A Q - T distribution analysis is also performed for the tropical and extra-tropical regions based on in-situ sounding data and numerical simulations [GEOS-3 and the Goddard Cumulus Ensemble （GCE） model]. A similar positively correlated Q - T distribution is found over the entire oceanic and tropical regions; how.ver, Q increases faster w.th T for the former region. It is suspected that the tropical oceans may possess a moister boundary layer than the Tropics. The oceanic regime falls w.thin the low.r bound of the tropical regime embedded in a global, curvilinear Q - T relationship. A positive correlation is also found betw.en T and sea surface temperature （SST）; how.ver, for one degree of increase in T, SST is found to increase 1.1 degrees for a w.rmer ocean, w.ich is slightly less than an increase of 1.25 degrees for a colder ocean. This seemingly indicates that more （less） heat is needed for an open ocean to maintain an air mass above it w.th a same degree of temperature rise during a colder （w.rmer） season [or in a colder （w.rmer） region]. Q and SST are also found to be positively correlated. Relative humidity （RH） exhibits similar behaviors for oceanic and tropical regions. RH increases w.th increasing SST and T over oceans, w.ile it increases w.th increasing T in the Tropics. RH, how.ver, decreases w.th increasing temperature in the extratropics. It is suspected that the tropical and oceanic regions may possess a moister local boundary layer than the extratropics so that a faster moisture increase than a saturated moisture increase is favored for the former regions. T, Q, saturated w.ter v

关键词： moisture temperature relationship quasi-equilibrium states Tropics oceans

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Traj.ctory Generation for Autonomous Soaring UAS

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International j.urnal of Automation and computing 2012年第3期9卷 248-256页

作者： j. H. A. Clarke w. H. Chen Department of Aeronautical and Automotive Engineering Loughborough University

As unmanned aerial vehicles are expected to do more and more advanced tasks, improved range and persistence is required. This paper presents a method of using shallow.layer cumulus convection to extend the range and duration of small unmanned aerial vehicles. A simulation model of an X-models XCalubur electric motor-glider is used in combination w.th a refined 4D parametric thermal model to simulate soaring flight. The parametric thermal model builds on previous successful models w.th refinements to more accurately describe the w.ather in northern Europe. The implementation of the variation of the MacCready setting is discussed. Methods for generating efficient traj.ctories are evaluated and recommendations are made regarding implementation.

关键词： Unmanned aerial vehicles (UAV) unmanned aerial systems (UAS) soaring traj.ctory thermal optimal heuristic

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