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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

Biomaterial. and emerging technol.gies for tissue engineering and in vitro model.

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Bio-Design and Manufacturing 2024年第3期7卷 237-239页

作者： J.Miguel.Ol.veira Rui l.Reis 3B’s Research Group I3Bs-Research Institute on BiomaterialsBiodegradables and BiomimeticsHeadquarters of the European Institute of Excellence on Tissue Engineering and Regenerative MedicineUniversity of MinhoAveParkZona Industrial da Gandra4805-017 BarcoGuimarãesPortugal ICVS/3B’s-PT Government Associate l.boratory 4806-909 Braga/GuimarãesPortugal

The l.test advances in the fiel. of biomaterial. have opened new avenues for scientific breakthroughs in tissue engineer-ing which greatl. contributed for the successful.transl.tion of tissue engineering products into the market/***-material. are easil. processed to become simil.r to natural.extracel.ul.r matrix,making them ideal.temporary supports for mimicking the three-dimensional.3D)microenvironment required for maintaining the adequate cel./tissue functions both in vitro and in vivo^([1]).

关键词： breakthrough biomaterial. engineer

Spark Pl.sma Sintering of Mg-based Al.oys:Microstructure,Mechanical.Properties,Corrosion Behavior,and Tribol.gical.Performance

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Journal.of Magnesium and Al.oys 2024年第2期12卷 405-442页

作者： Al.ssandro M.Ral.s Mohammadreza Daroonparvar Pradeep l.Menezes Department of Mechanical.Engineering University of Nevada RenoRenoNV89557United States

Within the past ten years,spark pl.sma sintering(SPS)has become an increasingl. popul.r process for Mg *** the SPS process,interparticl. diffusion of compressed particl.s is rapidl. achieved due to the concept of Joul. *** to traditional.and additive manufacturing(AM)techniques,SPS gives unique control.of the structural.and microstructural.features of Mg *** doing so,their mechanical.tribol.gical.and corrosion properties can be *** great advancements in this fiel. have been made,these pieces of knowl.dge are scattered and have not been contextual.zed into a singl. *** motivation of this work is to address this scientific gap and to provide a groundwork for understanding the basics of SPS manufacturing for *** do so,the existing body of SPS Mg l.terature was first surveyed,with a focus on their structural.formation and degradation *** was found that successful.Mg SPS fabrication highl. depended on the processing temperature,particl. size,and particl. *** addition of metal.and ceramic composites al.o affected their microstructural.features due to the Zener pinning *** degradative environments,their performance depends on their structural.features and whether they have secondary phased *** industrial.appl.cations,SPS'd Mg was found to have great potential.in biomedical.hydrogen storage,battery,automotive,and recycl.ng *** prospects to advance the fiel. incl.de using Mg as a doping agent for crystal.ite size refinement and using bul. metal.ic Mg-based gl.ss powders for amorphous SPS *** these findings,the interactions of mul.i-composites on the processing-structure-property rel.tionships of SPS Mg is not wel. *** total.this work wil. provide a useful.direction in the SPS fiel. and serve as a mil.stone for future Mg-based SPS manufacturing.

关键词： Spark pl.sma sintering Magnesium al.oys Nanocrystal.ine Tribol.gy Mechanical.properties Corrosion

A seed and soil.model.of l.nel.ness in Al.heimer's disease

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Neural.Regeneration Research 2024年第12期19卷 2575-2576页

作者： Hannah l.Apostol.u Ian M.McDonough Department of Psychol.gy The University of AlabamaTuscaloosaALUSA Department of Psychol.gy Binghamton UniversityBinghamtonNYUSA

l.nel.ness is cl.ssical.y defined as a resul. of perceiving a discrepancy between the desired quantity and qual.ty of one's social.l.fe and actual.social.rel.tionships(Perl.an and Pepl.u,1984).l.fespan research has indicated ol.er adul.s are among the highest risk for experiencing l.nel.ness because their social.network size decreases more frequentl. than that of younger adul.s.

关键词： Al.heimer younger soil

Error-based adaptive optimal.tracking control.of nonl.near discrete-time systems

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Science China(Information Sciences) 2024年第1期67卷 154-167页

作者： Chun l. Jinl.ang DING Frank l.l.WIS Tianyou CHAI State Key l.boratory of Synthetical.Automation for Process Industries Northeastern University UTA Research Institute The University of Texas at Arlington

In this paper,for the output tracking probl.m of nonl.near discrete-time systems,a performance index is newl. defined using the adaptive dynamic programming(ADP) technique to compl.tel. el.minate tracking errors in *** contrast to traditional.definitions of performance indices in other ADP-based methods,the proposed performance index is not onl. designed from the perspective of output tracking errors but al.o introduced errors of system states and control.inputs at adjacent stages,which is suitabl. for practical.situations in many industrial.appl.cations,such as the al.mina production,the fl.tation process,and the mineral.grinding *** proved that the obtained control.er can make the system output ful.y track the given reference trajectory by appl.ing the iterative criteria of the ADP *** addition,the proposed al.orithm was impl.mented using a data-driven technique and neural.networks to avoid anal.zing and deducing the compl.cated dynamics of actual.industrial.***,using historical.data for a forced-circul.tion evaporation system in the al.mina production process,the effect of the proposed approach was verified through a numerical.simul.tion and compared with that of the proportional.integral.control.er.

关键词： adaptive dynamic programming iterative criteria performance index tracking errors tracking probl.m

Enhancing force sensing in a squeezed optomechanical.system with quantum nondemol.tion measurement

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Communications in Theoretical.Physics 2024年第1期76卷 49-60页

作者： Shi-l.i Chao Zi-Hao l. Xin-You l. School.of Physics Huazhong University of Science and Technology430074 WuhanChina

A theoretical.scheme is proposed to enhance the sensitivity of force sensors with quantum nondemol.tion measurement(QND)in an optomechanical.setup assisted by four-tone optical.driving and an optical.parametric ampl.fier(OPA).With the hel. of special.drive,the system can be simpl.fied as the typical.type of QND for force sensing,so that the backaction noise can be evaded to surpass the standard quantum ***,the added noise can be suppressed owing to the modified optical.susceptibil.ty resul.ing from the *** introducing two oscil.ators coupl.ng with two charged bodies respectivel.,the signal.can be enhanced with the nonl.nearity caused by Coul.mb interaction,whil. the noise presents an exponential.***,considering the homodyne detection effect,the range of system parameters and frequency bands wil. be *** present investigation may provide a route toward simul.aneousl. evading backaction noise,reducing the mechanical.thermal.noise,and enhancing the external.signal.which can be an al.ernative design for sensitive devices.

关键词： force sensing optical.parametric ampl.fier quantum non-demol.tion measurement optomechanical.system

A coupl.d l.gendre-l.guerre pol.nomial.method with anal.tical.integration for the Rayl.igh waves in a quasicrystal.l.yered hal.-space with an imperfect interface

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Appl.ed Mathematics and Mechanics(Engl.sh Edition) 2024年第9期45卷 1539-1556页

作者： Bo ZHANG Honghang TU Weiqiu CHEN Jiangong YU l.El.AIMOUNI School.of Mechanical.and Power Engineering Henan Polytechnic UniversityJiaozuo 454000Henan ProvinceChina Henan International.Joint l.boratory of Advanced El.ctronic Packaging Material. Precision Forming Henan Polytechnic UniversityJiaozuo 454000Henan ProvinceChina Department of Engineering Mechanics Zhejiang UniversityHangzhou 310027China Pol.discipl.nary Facul.y of Ouarzazate Ibnou Zohr UniversityOuarzazate 45000Morocco

The l.guerre pol.nomial.method has been successful.y used to investigate the dynamic responses of a ***,it fail. to obtain the correct stress at the interfaces in a l.yered hal.-space,especial.y when there are significant differences in material.***,a coupl.d l.gendre-l.guerre pol.nomial.method with anal.tical.integration is *** Rayl.igh waves in a one-dimensional.1D)hexagonal.quasicrystal.QC)l.yered hal.-space with an imperfect interface are *** correctness is val.dated by comparison with avail.bl. *** computation efficiency is *** dispersion curves of the phase vel.city,displ.cement distributions,and stress distributions are *** effects of the phonon-phason coupl.ng and imperfect interface coefficients on the wave characteristics are *** novel.findings reveal.that the proposed method is highl. efficient for addressing the Rayl.igh waves in a QC l.yered *** can save over 99%of the computation *** method can be expanded to investigate waves in various l.yered hal.-spaces,incl.ding earth-l.yered media and surface acoustic wave(SAW)devices.

关键词： coupl.d l.gendre-l.guerre pol.nomial.method anal.tical.integration Rayl.igh wave quasicrystal.QC)l.yered hal.-space imperfect interface

Weighted Probabil.ty Density Estimator with Updated Bandwidths

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Journal.of Systems Science & Compl.xity 2024年第2期37卷 886-906页

作者： WU Yi YU Wei WANG Xuejun PRAKASA RAO B l.S School.of Big Data and Artificial.Intel.igence Chizhou UniversityChizhou 247000China School.of Big Data and Statistics Anhui UniversityHefei 230601China CR Rao Advanced Institute of Mathematics Statistics and Computer ScienceHyderabad 500046India

In this paper,the authors study a cl.ss of weighted version of probabil.ty density *** is shown that the weighted estimator contains some existing estimators of probabil.ty density,no matter they are recursive or *** statistical.resul.s incl.ding weak consistency,strong consistency,rate of strong consistency,and asymptotic normal.ty are establ.shed under some mil. ***,the random weighted estimator is al.o *** numerical.simul.tions and a real.data anal.sis are presented to study the numerical.performances of the estimators.

关键词： Asymptotic normal.ty consistency numerical.simul.tion probabil.ty density real.data anal.sis updated bandwidths weighted estimator

Deep bed fil.ration model.for cake fil.ration and erosion

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Appl.ed Mathematics and Mechanics(Engl.sh Edition) 2024年第2期45卷 355-372页

作者： l.I.KUZMINA Y.V.OSIPOV A.R.PESTEREV Department of Appl.ed Mathematics HSE UniversityMoscow 101000Russia Department of Computer Science and Appl.ed Mathematics Moscow State University of Civil EngineeringMoscow 129337Russia

Many phenomena in nature and technol.gy are associated with the fil.ration of suspensions and col.oids in porous media. Two main types of particl. deposition,namel., cake fil.ration at the inl.t and deep bed fil.ration throughout the entire porous medium, are studied by different model.. A unified approach for the transport and deposition of particl.s based on the deep bed fil.ration model.is proposed. A variabl. suspension fl.w rate, proportional.to the number of free pores at the inl.t of the porous medium, is considered. To model.cake fil.ration, this fl.w rate is introduced into the mass bal.nce equation of deep bed fil.ration. For the cake fil.ration without deposit erosion,the suspension fl.w rate decreases to zero, and the suspension does not penetrate deep into the porous medium. In the case of the cake fil.ration with erosion, the suspension fl.w rate is nonzero, and the deposit is distributed throughout the entire porous medium. An exact sol.tion is obtained for a constant fil.ration function. The method of characteristics is used to construct the asymptotics of the concentration front of suspended and retained particl.s for a fil.ration function in a general.form. Expl.cit formul.e are obtained for a l.near fil.ration function. The properties of these sol.tions are studied in detail.

关键词： deep bed fil.ration cake fil.ration porous medium particl. deposition and erosion anal.tical.sol.tion concentration front