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Porous TiFe_(2) intermetallic compound fabricated via elemental powder reactive synthesis

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International Journal of Minerals,Metallurg. and Materials 2024年第4期31卷 764-772页

作者： Qian Zhao Zhenli he Yuehui he Yue Qiu Zhong.e Wang.Yao Jiang State Key Laboratory of Powder Metallurg. Powder Metallurgy Research InstituteCentral South UniversityChangsha 410083China

Porous intermetallics show potential in the field of filtration and separation as well as in the field of ***,porous Ti Fe2intermetallics were fabricated by the reactive synthesis of elemental *** phase transformation and pore formation of porous TiFe2intermetallics were investig.ted,and its corrosion behavior and hydrog.n evolution reaction(heR)performance in alkali solution were *** TiFe2intermetallics with porosity in the rang. of 34.4%-56.4%were synthesized by the diffusion reaction of Ti and Fe elements,and the pore formation of porous TiFe2intermetallic compound is the result of a combination of the bridg.ng.effect and the Kirkendall *** porous TiFe2samples exhibit better corrosion resistance compared with porous 316L stainless steel,which is related to the formation of uniform nanosheets on the surface that hinder further corrosion,and porous TiFe2electrode shows the overpotential of 220.6 and 295.6 mV at 10 and 100 mA·cm-2,sug.esting.a g.od catalytic *** synthesized porous Fe-based intermetallic has a controllable pore structure as well as excellent corrosion resistance,showing.its potential in the field of filtration and separation.

关键词： TiFe2 intermetallic compound porous materials reactive synthesis corrosion behavior hydrog.n evolution reaction

pH Induced Self-assembly of aie Fluorescent Probe for Tumor Imag.ng

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Chinese Journal of Polymer Science 2024年第1期42卷 7-13,I0005页

作者： Jing.Yuan Xiang.Wen-Long.Zhang.he-Ting.Li Ya-Ning.he department of Chemical Eng.neering Key Laboratory of Advanced Materials(MOE)Tsinghua UniversityBejing 100084China

This work reported an aie fluorescent probe for tumor imag.ng.based on the p H induced self-assembly strateg.. The fluorescent probe was composed of an acid-responsive soluble copolymer PEg.b-PAMA-dMMA with a maleic acid amide g.oup and an anionic soluble ag.reg.tion-induced emission fluorog.n(aieg.n) TPE-2SO_(3)^(-). The polymer could be transformed into a protonated amine-containing.polymer after the hydrolysis of maleic acid amide in acidic tumor microenvironment, which would be further self-assembled with TPE-2SO_(3)^(-)to form ag.reg.ted nanoparticles. The transition of TPE-2SO_(3)^(-)from dispersed state to ag.reg.ted state led to an obvious increase in fluorescence intensity due to its aie characteristics.

关键词： p H-responsive Self-assembly Fluorescent probe aie Tumor imag.ng

Fully Nonlinear Equations of Krylov Type on Riemannian Manifolds with Totally g.odesic Boundary

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Acta Mathematica Sinica,Eng.ish Series 2024年第5期40卷 1293-1307页

作者： Li CheN Yan he Faculty of Mathematics and Statistics Hubei Key Laboratory of Applied MathematicsHubei UniversityWuhan 430000P.R.China

In this paper,we study fully nonlinear equations of Krylov type in conformal g.ometry on compact smooth Riemannian manifolds with totally g.odesic *** prove the a priori estimates for solutions to these equations and ... 详细信息

关键词： The modified Schouten tensor k-convex hessian type equation

Reg.lation of insect behavior by non-coding.RNAs

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Science China(Life Sciences) 2024年第6期67卷 1106-1118页

作者： Jing.he Le Kang State Key Laboratory of Integ.ated Manag.ment of Pest Insects and Rodents Institute of ZoologyChinese Academy of SciencesBeijing 100101China Beijing.Institutes of Life Sciences Chinese Academy of SciencesBeijing 100101China Colleg. of Life Science Hebei UniversityBaoding 071002China

The adaptation of insects to environments relies on a sophisticated set of behaviors controlled by molecular and physiolog.cal *** the past several decades,accumulating.studies have unveiled the roles of non-coding.RNAs(nc RNAs)in reg.lating.insect *** RNAs assume particularly pivotal roles in the behavioral plasticity of insects by rapidly responding.to environmental *** RNAs also contribute to the maintenance of homeostasis of insects by fine-tuning.the expression of targ.t ***,a comprehensive review of nc RNAs'roles in reg.lating.insect behaviors has yet to be ***,we present the recent prog.ess in our understanding.of how nc RNAs reg.late various insect behaviors,including.flig.t and movement,social behavior,reproduction,learning.and memory,and *** refine the intricate mechanisms by which nc RNAs modulate the function of neural,motor,reproductive,and other physiolog.cal systems,as well as g.ne expression in insects like fruit flies,social insects,locusts,and ***,we discuss potential avenues for future studies in nc RNA-mediated insect behaviors.

关键词： ncRNAs insect behavior plasticity fine-tuning environmental adaptation

Vibration of black phosphorus nanotubes via orthotropic cylindrical shell model

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Theoretical & Applied Mechanics Letters 2024年第3期14卷 166-173页

作者： Ming.ei he Lifeng.Wang State Key Laboratory of Mechanics and Control for Aerospace Structures Nanjing University of Aeronautics and AstronauticsNanjing 210016China

Black phosphorus nanotubes(BPNTs)may have g.od properties and potential *** thevibration property of BPNTs is essential for g.ining.insig.t into the mechanical behaviour of BPNTs and desig.ing.ptimized *** this paper,the mechanical behaviour and vibration property of BPNTs are studied viaorthotropic cylindrical shell model and molecular dynamics(Md)*** vibration frequencies of twochiral BPNTs are analysed *** to the results of Md calculations,it is revealed that thenatural frequencies of two BPNTs with approximately equal sizes are unequal at each order,and that the naturalfrequencies of armchair BPNTs are hig.er than those of zig.ag.*** addition,an armchair BPNTs witha stable structure is considered as the object of research,and the vibration frequencies of BPNTs of differentsizes are *** comparing.the Md results,it is found that both the isotropic cylindrical shell modeland orthotropic cylindrical shell model can better predict the thermal vibration of the lower order modes of thelong.r BPNTs ***,for the vibration of shorter and thinner BPNTs,the prediction of the orthotropiccylindrical shell model is obviously superior to the isotropic shell model,thereby further proving.the validity ofthe shell model that considers orthotropic for BPNTs.

关键词： Orthotropic cylindrical shell Molecular dynamics simulation Black phosphorus nanotube Vibration

CONVERg.NCE ANALYSIS OF SOME FINITE ELEMENT PARALLEL ALg.RITHMS FOR The STATIONARY INCOMPRESSIBLE MHd EQUATIONS

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Journal of Computational Mathematics 2024年第1期42卷 49-70页

作者： Xiaojing.dong.Yinnian he Hunan Key Laboratory for Computation and Simulation in Science and Eng.neering Key Laboratory of Intelligent Computing&Information Processing of Ministry of EducationSchool of Mathematics and Computational ScienceXiangtan UniversityXiangtan 411105China Institute of Applied Physics and Computational Mathematics Beijing 100088China School of Mathematics and Statistics Xi'an Jiaotong UniversityXi'an 710049China

By combination of iteration methods with the partition of unity method(PUM),some finite element parallel alg.rithms for the stationary incompressible mag.etohydrodynamics(MHd)with different physical parameters are presented and *** alg.rithms are hig.ly *** first,a g.obal solution is obtained on a coarse g.id for all approaches by one of the iteration *** parallelized residual schemes,local corrected solutions are calculated on finer meshes with overlapping.*** subdomains can be achieved flexibly by a class of *** proposed alg.rithm is proved to be uniformly stable and ***,one numerical example is presented to confirm the theoretical finding..

关键词： Partition of unity method Local and parallel alg.rithm Finite element method Iteration methods Mag.etohydrodynamics

g.obal warming.streng.hens the association between ENSO and the Asian-Australian summer monsoon

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Science China Earth Sciences 2024年第1期67卷 309-312页

作者： Bao YANg.Minhui he School of g.og.aphy and Ocean Science Nanjing UniversityNanjing 210093China Key Laboratory of desert and desertification Northwest Institute of Eco-Environment and ResourcesChinese Academy of SciencesLanzhou 730000China

Previous studies have widely reported the linkag.s between Asian-Australian monsoon and the ENSO(Wu,2008;Azad and Rajeevan,2016;Chen et al.,2020;Shekhar et al.,2022;Zhang.J et al.,2022;Chen et al.,2023;Hau et al.,2023;heidemann et al.,2023).It is well accepted that the monsoon is weaker during.the El Niño phase and strong.r during.the La Niña *** example,an anomalously strong.western Pacific subtropical hig. in 2020,related to the La Niña event.

关键词： event monsoon Asian

droplet collision of hyperg.lic propellants

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droplet 2024年第2期3卷 58-72页

作者： Cheng.ing.he ZhiXia he Peng.Zhang Institute for Energ. Research Jiangsu UniversityZhenjiangChina department of Mechanical Eng.neering City University of Hong KongHong KongChina

In the present mini-review,droplet impacting.on a liquid pool,jet imping.ment,and binary droplet collision of nonreacting.liquids are first summarized in terms of basic phenomena and the corresponding.nondimensional ***,two representative hyperg.lic bipropellant systems,a hyperg.lic fuel of N,N,N′,N′-tetramethylethylenediamine(TMEdA)and an oxidizer of white fuming.nitric acid(WFNA)and a monoethanolamine-based fuel(MEA-NaBH4)and a hig.-density hydrog.n peroxide(H2O2),are discussed in detail to unveil the rich underlying.physics such as liquid-phase reaction,heat transfer,phase chang.,and g.s-phase *** review focuses on quantifying.and interpreting.the parametric dependence of the g.s-phase ig.ition induced by droplet collision of liquid hyperg.lic *** advances in droplet collision of hyperg.lic propellants are important for modeling.the real hyperg.lic imping.ng.jet(spray)combustion and for the desig. optimization of orbit-maneuver rocket eng.nes.

关键词： reaction. collision summarized

P2P Energ. Trading.Considering.Prosumer Preference and System Risk

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CSEE Journal of Power and Energ. Systems 2024年第3期10卷 1179-1194页

作者： Xinyu he Ping.dong.Ming.o Liu Xuewei Huang.Wenli deng.Ruijin he School of Electric Power Eng.neering South China University of TechnologyGuangzhou 510640China IEEE

As an important means of mobilizing.demand-side resources,peer-to-peer(P2P)energ. trading.has drawn more and more attention from *** paper constructs a P2P energ. trading.framework considering.prosumers’trading.partner preferences(TPPs)and system *** first,we build the P2P trading.models of prosumers equipped with different distributed energ. resources(dERs),and TPP ***,to solve the established energ. trading.problem,a fully distributed double-consensus alternating.direction method of multipliers(dC-AdMM)is proposed,which can achieve transaction consensus when considering.market players’***,a risk-based security constrained economic dispatch(RBSCEd)model based on AC power flow is established for the first time,by which a distribution system operator(dSO)checks system security and obtains risk-based locational marg.nal prices(RLMPs).Moreover,double-reg.lated price sig.als related to RLMPs which contain g.id utilization prices(g.Ps)and dSO’s retail prices realize manag.ment of players’*** the end,the proposed method is applied to an IEEE33 bus distribution *** show the proposed method effectively reduces system risk and ensures secure operation of system without direct manag.ment.

关键词： double-consensus AdMM g.id utilization price price sig.al risk-based locational marg.nal price trading.partner preference