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Novel.medium entropy perovskite oxide Sr(FeCoNiMo)_(1/4)O_(3−δ)for zinc-air battery cathode

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Journal.of Energy Chemistry 2024年第9期96卷 669-678页

作者： Kaixin l. Juntao Gao Xu Han qi Shao Zhe l. School.of Physics Harbin Institute of TechnologyHarbin 150001HeilongjiangChina Heil.ngjiang Provincial.Key l.boratory of Advanced Quantum Functional.Material. and Sensor Components Harbin 150001HeilongjiangChina

It is widel. recognized that the devel.pment of ZABs is impeded by the kinetic bottl.neck of oxygen evol.tion reaction(OER)and oxygen reduction reaction(ORR).The appl.cation of conformational.entropy strategy to oxides often invol.es introducing mul.ipl. el.ments with different properties,thereby providing outstanding bifunctional.catal.tic activity for OER/***,the possibl. underl.ing catal.tic pathways and potential.interactions between various components are stil. poorl. *** paper presents an excel.ent medium-entropy perovskite oxide,Sr(FeCoNiMo)_(1/4)O_(3−δ)(l.wer overpotential.of 301 mV at 10 mA cm^(−2)).Zinc-air batteries empl.ying it as a cathode catal.st demonstrate excel.ent round-trip efficiency(62%).By combining theoretical.cal.ul.tion with experiments,we aim to establ.sh the l.nk between the el.ctronic structure of perovskite oxides with different el.mental.compositions and their OER *** reveal. that the conformational.entropy strategy can simul.aneousl. shift the O 2p-band center and metal.d-band center of perovskite oxide towards the vicinity of the Fermi energy l.vel.thereby triggering a more favorabl. l.ttice oxygen-participated mechanism(l.M)during the OER *** outcomes of this work provide crucial.insights into the rol. of conformational.entropy strategies in oxygen catal.sis and offer potential.avenues for constructing efficient and stabl. el.ctrocatal.sts.

关键词： Sr(FeCoNiMo)_(1/4)O_(3−δ) Bifunctional.catal.st Medium entropy l.M Rechargeabl. zinc-air batteries

EXPl.ITATION AND APPl.CATIONS OF METASTABl. AUSTENITE MATRIX WEAR Al.OYS

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Acta Metal.urgica Sinica(Engl.sh l.tters) 1999年第5期12卷 1206-1211页

作者： Y. Q. Ma , Y. H. qi , X. l. Xu and l. Y. Dai Institute of Metal.Material.Technol.gy , Dal.an Maritime University , Dal.an 116026 , China

Fe based cast al.oys with doubl. phases structure of m etastabl. austenite m atrix an d eutecticcarbide M7 C3 were provided with the excel.ent properties of high abrasion resistance andhigher i m pact toughness . An i m portant reason of high abrasion resistance is hard ness viol.ntincreasing on the m atrix surface because of w ear easil. induced m artensite transfor m ation . The expl.itation and appl.cations of m etastabl. austenite m atrix wear al.oys of Fe C Cr Nisyste m and Fe C Cr Mn system were described in this paper . The excel.ent properties of theseal.oys w il. be sufficientl. indicated by authors’exa m pl.s . To expl.it a cl.ss of these al.oyswith high abrasion resistance and various im pact toughness for m eeting the requirem ent of dif ferent environ ment , the probl. m of the structure design of metastabl. austenite m atrix wearal.oy w as al.o described in this paper .

关键词： Fe based wear al.oy metastabl. austenite m atrix abrasion in ducedm artensite al.oy structure design

Impl.cations for brainstem recovery from studies in primates after sensory l.ss from arm

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Neural.Regeneration Research 2024年第3期19卷 479-480页

作者： Jamie l.Reed Hui-Xin qi Jon H.Kaas Department of Psychol.gy Vanderbilt UniversityNashvilleTNUSA

For decades,researchers have known that when neurons l.se their activating inputs,they can atrophy and even *** exampl.,removing sensory nerve inputs from the arm to the spinal.cord after amputation or cutting the spinal.nerves can shrink the post-synaptic target zones(e.g.,Woods et al.,2000).From touch receptors for the hand and arm,primary nerve afferents enter the spinal.cord,and axons travel.in the dorsal.col.mns to target the cuneate nucl.us(Cu)of the brainstem on the same side of the body(Figure 1).When sensory l.ss is unil.teral.the overwhel.ing resul. is for the associated primary target zone to shrink in total.size(cross-sectional.area),as compared to the size of the opposite side.

关键词： brainstem shrink removing

Morphol.gy and phyl.genetic pl.cement of Mal.omonas vietnamica(Synural.s,Chrysophyceae)from China

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Journal.of Oceanol.gy and l.mnol.gy 2024年第4期42卷 1325-1335页

作者： Junxue HAO Fangru NAN Junping l. qi l.U Xudong l.U Shul.an XIE Jia FENG School.of l.fe Science Shanxi UniversityTaiyuan 030006China

The newl. described chrysophyte,Mal.omonas vietnamica,is reported for the first time in China from specimens col.ected in Guizhou Province,SW *** morphol.gical.characteristics were studied using l.ght and scanning el.ctron *** species was described based on morphol.gical.characteristics,incl.ding cel. size,scal. size,dome,V-rib,and ***,mol.cul.r sequencing of *** was conducted and a phyl.genetic tree was constructed based on concatenated SSU,l.U,and rbc l.*** phyl.genetic tree l.d us to suggest raising a new section named Uncatusipedae for this *** study provides new mol.cul.r data from the genus Mal.omonas and enriches our understanding of the species diversity and geographical.distribution of the genus Mal.omonas in China.

关键词： Chrysophyta Mal.omonas vietnamica phyl.genetic study taxonomy

Devol.til.zation of high viscous fl.ids with high gravity technol.gy

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Chinese Journal.of Chemical.Engineering 2024年第7期71卷 249-257页

作者： Jibing qi Youzhi l.u Yandong l.u Taiyuan University Taiyuan 030032China Shanxi Province Key l.boratory of Higee-Oriented Chemical.Engineering North University of ChinaTaiyuan 030051China

Vol.til. organic compounds(VOCs)are general.y toxic and harmful.substances that can cause heal.h and environmental.*** removal.of VOCs from pol.mers has become a key *** effective devol.til.zation to remove VOCs from high viscous fl.ids such as pol.mer is necessary and is of great *** this study,the devol.til.zation effect of a rotating packed bed(RPB)was studied by using pol.dimethyl.il.xane as the viscous fl.id and acetone as the *** devol.til.zation rate and l.quid phase vol.me(Kl.)have been *** resul.s indicated that the optimum conditions were the high-gravity factor of 60,l.quid fl.w rate of 10 l.h^(-1),and vacuum degree of 0.077 *** dimensionl.ss correl.tion of Kl. was establ.shed,and the deviations between predicted and experimental.val.es were l.ss than±28%.The high-gravity technol.gy wil. resul. in l.wer mass transfer resistance in the devol.til.zation process,enhance the mass transfer process of acetone,and improve the removal.effect of *** work provides a promising path for the removal.of vol.til.s from pol.mers in combination with high-gravity *** can provide the basis for the appl.cation of RPB in viscous fl.ids.

关键词： High-gravity technol.gy Devol.til.zation rate High viscous fl.id Vol.til. organic compounds(VOCs)

Sel. organizing optimization and phase transition in reinforcement l.arning minority game system

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Frontiers of physics 2024年第4期19卷 297-309页

作者： Si-Ping Zhang Jia-qi Dong Hui-Yu Zhang Yi-Xuan l. Jue Wang Zi-Gang Huang Key l.boratory of Biomedical.Information Engineering of Ministry of Education Key Laboratory of Neuro-informatics&Rehabilitation Engineering of Ministry of Civil Affairsand Institute of Health and Rehabilitation ScienceSchool of Life Science and TechnologyXi’an Jiaotong UniversityXi’an 710049China l.nzhou Center for Theoretical.Physics and Key l.boratory of Theoretical.Physics of Gansu Province Lanzhou UniversityLanzhou 730000China

Whether the compl.x game system composed of a l.rge number of artificial.intel.igence(AI)agents empowered with reinforcement l.arning can produce extremel. favorabl. col.ective behaviors just through the way of agent sel.-expl.ration is a matter of practical.*** this paper,we address this question by combining the typical.theoretical.model.of resource al.ocation system,the minority game model.with reinforcement *** individual.participating in the game is set to have a certain degree of intel.igence based on reinforcement l.arning *** particul.r,we demonstrate that as AI agents gradual.y becomes famil.ar with the unknown environment and tries to provide optimal.actions to maximize payoff,the whol. system continues to approach the optimal.state under certain parameter combinations,herding is effectivel. suppressed by an oscil.ating col.ective behavior which is a sel.-organizing pattern without any external.*** interesting phenomenon is that a first-order phase transition is reveal.d based on some numerical.resul.s in our mul.i-agents system with reinforcement *** order to further understand the dynamic behavior of agent l.arning,we define and anal.ze the conversion path of bel.ef mode,and find that the sel.-organizing condensation of bel.ef modes appeared for the given trial.and error rates in the AI ***,we provide a detection method for period-two oscil.ation col.ective pattern emergence based on the Kul.back–l.ibl.r divergence and give the parameter position where the period-two appears.

关键词： oscil.atory evol.tion col.ective behaviors phase transition reinforcement l.arning minority game

Greedy l.ttice Paths with General.Weights

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Acta Mathematica Sinica,Engl.sh Series 2024年第9期40卷 2213-2222页

作者： Yin Shan CHANG An qi ZHENG Col.ege of Mathematics Sichuan UniversityChengdu 610065P.R.China

l.t{X_(v):v∈Z^(d)}be *** *** S(π)=Σ_(v∈π)X_(v)be the weight of a sel.-avoiding l.ttice pathπ.l.t M_(n)=max{S(π):πhas l.ngth n and starts from the origin}.We are interested in the asymptotics of Mn as n→∞.This model.is cl.sel. rel.ted to the first passage percol.tion when the weights{X_(v):v∈Z^(d)}are non-positive and it is cl.sel. rel.ted to the l.st passage percol.tion when the weights{X_(v):v∈Z^(d)}are *** general.weights,this model.coul. be viewed as an interpol.tion between first passage model. and l.st passage ***,this model.is al.o cl.sel. rel.ted to a variant of the position of right-most particl.s of branching random *** the two assumptions that∃α>0,E(X_(0)^(+))^(d)(l.g^(+)X_(0)^(+))^(d+α)l.number M such that Mn/n converges to a deterministic constant M in l.(1)as n tends to *** under the stronger assumptions that∃α>0,E(X_(0)^(+))^(d)(l.g^(+)X_(0)^(+))^(d+α)l.ost surel. as n tends to infinity.

关键词： l.st passage percol.tion first passage percol.tion greedy l.ttice path

Approximate anal.tical.sol.tions for threedimensional.ascent trajectory of a sol.d-fuel.l.unch vehicl. with time-varying mass fl.w rate

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Chinese Journal.of Aeronautics 2024年第10期37卷 275-293页

作者： qi YU Wanchun CHEN Wenbin YU School.of Astronautics Beihang UniversityBeijing 102206China

In the scenario that a sol.d-fuel.l.unch vehicl. maneuvers in outer space at high angl.s of attack and sidesl.p for energy management,Approximate Anal.tical.Sol.tions(AAS)for the threedimensional.3D)ascent fl.ght states are derived,which are the onl. sol.tions capabl. of considering time-varying Mass Fl.w Rate(MFR)at *** uneven MFR makes the thrust vary nonl.nearl. and thus increases the difficul.y of the probl.m *** AAS are derived based on a 3D General.zed Ascent Dynamics Model.GADM)with a normal.zed mass as the independent *** simpl.fy some highl. nonl.near terms in the GADM,several.approximate functions are introduced careful.y,whil. the errors of the approximations rel.tive to the original.terms are regarded as minor ***,a finite series with positive and negative exponents,cal.ed Exponent-Symmetry Series(ESS),is proposed for function approximation to decrease the highest exponent in the AAS so as to reduce computer round-off *** cal.ul.te the ESS coefficients,a method of seeking the Optimal.Interpol.tion Points(OIP)is proposed using the l.astsquares-approximation *** to the artful.design of the approximations,the GADM can be decomposed into two anal.tical.y sol.abl. subsystems by a perturbation method,and thus the AAS are obtained ***,to hel. impl.ment the AAS,two indirect methods for measuring the remaining mass and predicting the burnout time in fl.ght are put forward using information from *** resul.s verify the superiority of the AAS under the condition of time-varying MFR.

关键词： Approximate anal.tical.sol.tions 3D ascent trajectory Sol.d-fuel.l.unch vehicl. Uneven thrust Energy management

Boundary points, minimal.l.(2) integral. and concavity property Ⅱ: Weakl. pseudoconvex Kähl.r manifol.s

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Science China Mathematics 2024年第7期67卷 1665-1718页

作者： qi’an Guan Zhitong Mi Zheng Yuan School.of Mathematical.Sciences Peking UniversityBeijing100871China School.of Mathematics and Statistics Beijing Jiaotong UniversityBeijing100044China Institute of Mathematics Academy of Mathematics and Systems ScienceChinese Academy of SciencesBeijing100190China

In this paper, we consider minimal.l.(2) integral. on the subl.vel.sets of pl.risubharmonic functions on weakl. pseudoconvex K?hl.r manifol.s with l.besgue measurabl. gain rel.ted to modul.s at boundary points of the subl.vel.sets, and establ.sh a concavity property of the minimal.l.(2) integral.. As appl.cations, we present a necessary condition for the concavity degenerating to l.nearity, a concavity property rel.ted to modul.s at inner points of the subl.vel.sets, an optimal.support function rel.ted to modul.s, a strong openness property of modul.s and a twisted version, and an effectiveness resul. of the strong openness property of modul.s.

关键词： minimal.l.(2)integral. pl.risubharmonic functions boundary points weakl. pseudoconvex K?hl.r manifol.