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Ch.nese j.urnal of Electrical Engineering 2024年第1期10卷 1-2页

作者： Li j. Mei h. Li S. Tianj.n University China Tsingh.a Sh.nzh.n International Graduate Sch.ol China Lanzh.u j.aotong University China

Th. rapid development of clean and renewable energy tech.ologies represented by wind and solar energy,as well as th. continuous growth.of load demand,h.ve put forward h.gh.r requirements for th. safe operation of th. power *** performance of power equipment based on traditional dielectric materials is often limited by various defects generated during molding,transportation,assembly,and operation,wh.ch.cannot meet th. reliability requirements of power systems in th. new *** detection is an essential tech.ical meth.d in industrial development,wh.ch.can detect and evaluate th. defect and damage status of in-service equipment,key components,and materials with.ut damaging th. obj.ct.

关键词： service Application operation

韩国首尔牛眠山高速公路隧道火灾早期探测系统

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隧道（中文版） 2006年第1期 29-30页

作者： j. h. song Birgit Gebh.rd Parkor Korea工业公司经理韩国首尔 Listec公司市场营销德国伊森

一般隧道施工发生火灾时。首先考虑的是保护生命。因此，预防措施要比隧道灭火方案得到更多关注。用于火灾早期探测的传感器电缆系统在欧洲已通过验证。非常有效。如今韩国也应用这种系统。

关键词：隧道火灾电缆系统早期探测高速公路韩国隧道施工灭火方案牛

Th.rmo-kinetic ch.racteristics on stabilizing h.tero-ph.se interface of metal matrix composites by crystal plasticity finite element meth.d

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j.urnal of Materials Science & Tech.ology 2024年第2期169卷 53-67页

作者： Y.B.Zh.ng S.j.song F.Liu State Key Laboratory of Solidification Processing Northwestern Polytechnical UniversityXi’an 710072China Analytical&Testing Center Northwestern Polytechnical UniversityXi’an 710072China

Using dislocation-based constitutive modeling in th.ee-dimension crystal plasticity finite element(3D CPFE)simulations,co-deformation and instability of h.tero-ph.se interface in different material systems were h.rein studied for polycrystalline metal matrix composites(MMCs).Local stress and strain fields in two types of 3layer MMCs such.as fcc/fcc Cu-Ag and fcc/bcc Cu-Nb h.ve been predicted under simple compressive ***,more severe strain-induced interface instability can be observed in th. fcc/bcc systems th.n in th. fcc/fcc systems upon refining to metallic nanolayered composites(MNCs).By detailed analysis of stress and strain localization,it h.s been demonstrated th.t th. interface instability is always accompanied by h.gh.stress concentration,i.e.,th.rmodynamic ch.racteristics,or h.gh.strain prevention i.e.,kinetic ch.racteristics,at th. h.tero-ph.se *** th.n follows th.t th. th.rmodynamic driving forceG and th. kinetic energy barrier Q during dislocation and sh.ar banding can be adopted to classify th. deformation modes,following th. so-called th.rmo-kinetic *** by inserting a h.gh.density of h.gh.energy interfaces into th. Cu-Nb composites,such.th.rmo-kinetic integration at th. h.tero-ph.se interface allows a successful establish.ent of MMCs with.th. h.gh.G-h.gh.Q deformation mode,wh.ch.ensures h.gh.h.rdening and uniform strain distri-bution,th.s efficiently suppressing th. sh.ar band,stabilizing th. h.tero-ph.se interface,and obtaining an exceptional combination in strength.and *** h.tero-ph.se interface ch.sen by a couple of th.rmodynamics and kinetics can be defined as breaking th. th.rmo-kinetic correlation and h.s been proposed for artificially designing MNCs.

关键词： Th.rmodynamics and kinetics Ph.sics-based constitutive modeling h.tero-ph.se interface Crystal plasticity finite element

Th. quasi-Gramian solution of a non-commutative extension of th. h.gh.r-order nonlinear Sch.?dinger equation

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Communications in Th.oretical Ph.sics 2024年第3期76卷 51-61页

作者： h.W A Riaz j.Lin Department of Ph.sics Zhejiang Normal UniversityJinhua 321004China

Th. nonlinear Sch.?dinger(NLS)equation,wh.ch.incorporates h.gh.r-order dispersive terms,is widely employed in th. th.oretical analysis of various ph.sical *** th.s study,we explore th. non-commutative extension of th. h.gh.r-order NLS *** treat real or complex-valued functions,such.as g_(1)=g_(1)(x,t)and g_(2)=g_(2)(x,t)as non-commutative,and employ th. Lax pair associated with.th. evolution equation,as in th. commutation *** derive th. quasi-Gramian solution of th. system by employing a binary Darboux *** soliton solutions are presented explicitly with.n th. framework of *** visually understand th. dynamics and solutions in th. given example,we also provide simulations illustrating th. associated ***,th. solution can be used to study th. stability of plane waves and to understand th. generation of periodic patterns with.n th. context of modulational instability.

关键词： integrable systems Darboux transformation solitons

Th.oretical and experimental investigations on an X-sh.ped vibration isolator with.active controlled variable stiffness

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Applied Math.matics and Mech.nics(English.Edition) 2024年第8期45卷 1371-1386页

作者： Zeyu Ch.I j.T.h.N Xuyuan song j.an ZANG Yewei Zh.NG Zh.n Zh.NG College of Aerospace Engineering Shenyang Aerospace UniversityShenyang 110136China j.cobs Sch.ol of Engineering University of California San DiegoSan Diego CA 92122U.S.A. Key Laboratory of Vibration and Control of Aero-Propulsion System Ministry of EducationNortheastern UniversityShenyang 110819China

A novel X-sh.ped variable stiffness vibration isolator(X-VSVI)is *** Runge-Kutta meth.d,h.rmonic balance meth.d,and wavelet transform spectra are introduced to evaluate th. performance of th. X-VSVI under various *** layer number,th. installation angle of th. X-sh.ped structure,th. stiffness,and th. active control parameters are systematically *** addition,a prototype of th. X-VSVI is manufactured,and vibration tests are carried *** results sh.w th.t th. proposed X-VSVI h.s a superior adaptability to th.t of a traditional X-sh.ped mech.nism,and sh.ws excellent vibration isolation performance in response to different amplitudes and forms of ***,th. vibration isolation efficiency of th. device can be improved by appropriate adj.stment of parameters.

关键词： bionic vibration isolation X-sh.ped structure variable stiffness structure nonlinear dynamics prototype experiment

Convexification of h.brid AC-DC Optimal Power Flow with.Line-Commutated Converters

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CSEE j.urnal of Power and Energy Systems 2024年第2期10卷 617-628页

作者： h.ngyuan Liang Zh.gang Li j.h.Zh.ng Q.h.Wu Sch.ol of Electric Power Engineering South China University of TechnologyGuangzhou 510641China

Line-commutated converter (LCC)-based h.gh.voltage DC (h.DC) systems h.ve been integrated with.bulk AC power grids for interregional transmission of renewable power. Th. nonlinear LCC model brings additional nonconvexity to optimal power flow (OPF) of h.brid AC-DC power grids. A convexification meth.d for th. LCC station model could address such.nonconvexity but h.s rarely been discussed. We devise an equivalent reformulation for classical LCC station models th.t facilitates second-order cone convex relaxation for th. OPF of LCC-based AC-DC power grids. We also propose sufficient conditions for exactness of convex relaxation with.its proof. Equivalence of th. proposed LCC station models and properties, exactness, and effectiveness of convex relaxation are verified using four numerical simulations. Simulation results demonstrate a globally optimal solution of th. original OPF can be efficiently obtained from relaxed model.

关键词： AC-DC power system convex relaxation linecommutated converter optimal power flow second-order cone programming

Effect of succinic acid on morph.logy transformation of th. anh.drous magnesium carbonate particles prepared by magnesium ch.oride h.xah.drate and urea

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Particuology 2024年第7期90卷 209-217页

作者： song Liu Guoj.n Ch.ng Zh.ngfeng Tang Sch.ol of Materials Science and Engineering Anhui University of Science and TechnologyHuainan232001China Sh.ngh.i Institute of Applied Ph.sics Chinese Academy of SciencesShanghai 201800China Anh.i Province Key Laboratory of Environment-friendly Polymer Materials Anhui UniversityHefei230601China

Th. h.mogeneous and controllable morph.logy of anh.drous magnesium carbonate(MgCO_(3))particles with.excellent properties is difficult to obtain because of a variety of synth.tic *** effect of succinic acid as a crystal modifier on th. particle morph.logy transformation of anh.drous MgCO_(3)was investigated by th. h.droth.rmal *** effect of th. addition of succinic acid on th. particles was similar to th.t of temperature *** morph.logy of particles with.a folded diamond-like sh.pe was gradually uniform,and th. particle size was between 3.3 and 7.5μ*** MgCO_(3)particles prepared at ph.9 could easily agglomerate,and th. average particle size increased from diamond-like to cube-like as th. reaction time *** interaction between succinic acid and magnesium ions at different concentrations was th. main factor responsible for th. morph.logical *** ph.temperature,and time affected th. molecular motion rate and crystal growth.

关键词： MgCO_(3) MgCl_(2)·6h.(2)O Urea Succinic acid Morph.logy

Decorating crystalline YFe_(2-x)Al_(x) on th. Mg_(60)La_(10)Ni_(20)Cu_(10) amorph.us alloy as “h.drogen pump” to realize fast de/h.drogenation

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j.urnal of Materials Science & Tech.ology 2024年第6期173卷 72-79页

作者： L.j.h.ang h.Wang L.Z.Ouyang M.Zh. h.j.Lin Sch.ol of Materials Science and Engineering Key Laboratory of Advanced Energy Storage Materials of Guangdong ProvinceSouth China University of TechnologyGuangzhou 510641China Institute of Advanced Wear&Corrosion Resistance and Functional Materials Jinan UniversityGuangzhou 510632China

Mg-based amorph.us alloys are one of th. potential h.drogen storage materials but suffer from sluggish.deh.drogenation/h.drogenation(de/h.drogenation)*** th.s work,as a new strategy,a h.drogen pump is built on th. surface of amorph.us alloys to solve th.s *** milling crystalline YFe_(2-x)Al_(x) h.drogen storage alloy with.Mg_(60)La_(10)Ni_(20)Cu_(10) amorph.us alloy,fine crystalline particles were seeded on amorph.us alloy powder to form a“strawberry”*** to th. TEM observation,a metallurgical bonding boundary formed between th. Mg-based amorph.us matrix and th. Y-Fe-Al crystalline *** microstructure and de/h.drogenation kinetics investigation,th.“h.drogen pump”effect of th. seeded crystalline alloy was confirmed,wh.ch.makes it much.easier for th. h.drogen to dissociate on and diffuse th.ough.th. surface of th. Mg-based amorph.us *** such.effect,th. h.absorption rate of Mg_(60)La_(10)Ni_(20)Cu_(10) amorph.us alloy became almost eigh. times faster and it absorbs ~2.8 wt.% in 1 h.at 130℃ under 4.5 MPa-h.(2).Furth.r,fast h.drogenation can even ach.eve at 70℃ and th. low-temperature deh.drogenation kinetics of th. amorph.us h.dride can be also greatly *** present work proves th.t surface modification is of great importance for obtaining Mg-based amorph.us alloy with.ideal h.drogen storage performance.

关键词： h.drogen storage Mg-based amorph.us alloy h.drogen pump Composite structure

Finding biomarkers of experience in animals

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j.urnal of Animal Science and Biotech.ology 2024年第3期15卷 925-944页

作者： Sarah.Babington Alan j.Tilbrook Sh.ne K.Maloney j.ll N.Fernandes Tamsyn M.Crowley Luoyang Ding Arch. h.Fox song Zh.ng Elise A.Kh. Daniel Cozzolino Timoth. j.Mah.ny Dominique Blach. Sch.ol of Agriculture and Environment The University of Western AustraliaCrawleyWA 6009Australia Centre for Animal Science The Queensland Alliance for Agriculture and Food InnovationThe University of QueenslandSt LuciaQLD 4072Australia Sch.ol of Veterinary Science The University of QueenslandGattonQLD 4343Australia Sch.ol of h.man Sciences The University of Western AustraliaCrawleyWA 6009Australia Sch.ol of Medicine Deakin UniversityGeelongVIC 3217Australia Poultry h.b Australia University of New EnglandArmidaleNSW 2350Australia College of Animal Science and Tech.ology Yangzhou UniversityYangzhou 225009China Centre for Nutrition and Food Sciences The Queensland Alliance for Agriculture and Food InnovationThe University of QueenslandSt LuciaQLD 4072Australia

At a time wh.n th.re is a growing public interest in animal welfare,it is critical to h.ve obj.ctive means to assess th. way th.t an animal experiences a *** is critical to ensure appropriate animal welfare *** beh.vioural,ph.siological,and neurobiological indicators th.t are used to assess animal welfare can verify th. absence of extremely negative *** welfare is more th.n an absence of negative outcomes and an appropriate indicator sh.uld reflect th. full spectrum of experience of an animal,from negative to *** th.s review,we draw from th. knowledge of h.man biomedical science to propose a list of candidate biological markers(biomarkers)th.t sh.uld reflect th. experiential state of non-h.man *** proposed biomarkers can be classified on th.ir main function as endocrine,oxidative stress,non-coding molecular,and th.rmobiological *** also discuss practical ch.llenges th.t must be addressed before any of th.se biomarkers can become useful to assess th. experience of an animal in real-life.

关键词： Animal experience Animal welfare Biomarker Stress Welfare assessment

Ch.mical vapor deposition making better lith.um-sulfur batteries

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Science Bulletin 2024年第13期69卷 2013-2016页

作者： Yingze song Lixian song Menglei Wang Wenlong Cai State Key Laboratory of Environment-Friendly Energy Materials School of Materials and ChemistrySouthwest University of Science and TechnologyMianyang 621010China Sch.ol of Material Science and Engineering Henan University of TechnologyZhengzhou 450001China Department of Advanced Energy Materials College of Materials Science and EngineeringSichuan UniversityChengdu 610064China

Th. burgeoning demand for modern electronic devices and electric veh.cles h.s driven th. development of efficient,reliable,and environmentally friendly batteries[1,2].Lith.um–sulfur(Li–S)batteries with.h.gh.th.oretical capacity(1672 mA h.g1)and energy density(2600 W h.kg1),h.ve garnered significant interest in both.academic and industrial research.3,4].h.wever,th. widespread production and commercialization of Li–S batteries are impeded by th. inh.rent ch.racteristics of sulfur and lith.um,along with.th.ir complex electroch.mical ***,ch.llenges such.as th. polysulfide sh.ttle effect and th. slow kinetics of th. sulfur nucleation/decomposition reaction h.nder capacity utilization and cycling *** overcome th.se ch.llenges,innovative electrocatalyst strategies aimed at enh.ncing activity h.ve been explored.

关键词： lith.um overcome cycling