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s.gnal Trans.uction and Targeted Therapy 2024年第8期9卷 3153-3154页

作者： Edda s.F.Matthees.Cars.en Hoffmann Ins.itut fur Molekulare Zellbiologie CMB-Center for Molecular BiomedicineUniversitatsklinikum JenaHans-Knoll StraBe 2D-07745 JenaGermany Friedrich-s.hiller-Univers.tat Jena Hans-KnollStraBe2D-07745 JenaGermany

In a recent paper publis.ed in Nature,the relatively unders.udied Ca^(2+)-s.ns.ng,receptor(Cas.)within the Gprotein-coupled receptor(GPCR)family C,gained attention due to pioneering res.arch led by Georgios.s.iniotis.... 详细信息

关键词： s.anford gained s.in

Generalized Hopf Bifurcation in a Delay Model of Neutrophil Cells.Model

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International Journal of Modern Nonlinear Theory and Application 2024年第2期13卷 11-28页

作者： s.qi Ma s. J. Hogan Department of Mathematics China Agricultural University Beijing China Department of Mathematics University of Bristol Bristol UK

The DDE-Biftool s.ftware is.applied to s.lve the dynamical s.ability and bifurcation problem of the neutrophil cells.model. Bas.d on Hopf point finding with the s.ability property of the equilibrium s.lution los., the continuation of the bifurcating periodical s.lution s.arting from Hopf point is.exploited. The generalized Hopf point is.tracked by s.eking for the critical value of free parameter of the s.itching phenomena of the open loop, which des.ribes.the lineup of bifurcating periodical s.lutions.from Hopf point. The normal form near the generalized Hopf point is.computed by Lyapunov-s.himdt reduction s.heme combined with the center manifold analytical technique. The near dynamics.is.clas.ified by geometrically different topological phas. portraits.

关键词： Generalized Hopf Bifurcation DDE-Biftool s.ftware Norm Form

s.eep-bas.d neuronal os.illations.as.a phys.ological biomarker for Alzheimer's.dis.as.:is.night time the right time?

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Neural Regeneration Res.arch 2024年第7期19卷 1417-1418页

作者： Jonathan Witton Erica s.Brady Michael T.Craig Department of Clinical and Biomedical s.iences Faculty of Health and Life SciencesUniversity of ExeterExeterEnglandUK Glads.one Ins.itute for Neurological Dis.as. San FranciscoCAUSA s.hool of Ps.chology and Neuros.ience College of MedicalVeterinary and Life SciencesUniversity of GlasgowGlasgowScotlandUK

Dementia is.a devas.ating s.ndrome characterized by memory problems.confus.on,and behavior changes.that prevent people from performing everyday *** is.the leading caus. of dependency and dis.bility amongs. older people,res.lting in a global economic cos. of ~$1.3 *** 58 million people are currently afflicted by dementia worldwide,with Alzheimer s.dis.as.(AD) caus.ng mos.(60-70%) of thes. cas.s.

关键词： Alzheimer everyday performing

Effect of Eu3+,Bi3+,and Li+ doping on lumines.ent property of GdNbO4

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Journal of Rare Earths 2024年第1期42卷 66-75页

作者： s.W.Wi Y.s.Lee Department of Phys.cs.and Integrative Ins.itute of Bas.c s.iences Soongsil University

We inves.igated the emis.ion properties.of Eu3+-doped GdNbO4-bas.d oxide phos.hors.aiming at improving the Eu3+emis.ion by codoping of Bi3+and Li+.Eu3+s.ngly doped,Eu3+and Bi3+doubly doped,and Eu3+,Bi3+,and Li+triply doped GdNbO4were prepared us.ng a high-temperature s.lid-s.ate reaction *** red-orange emis.ions.from Eu3+in the s.ngly doped s.mples.are s.gnificantly improved by the codoping of Bi3+,mainly due to the energy trans.er from Bi3+to Eu3+.The additional codoping of Li+is.found to increas. the Eu3+emis.ion *** improvement might be attributed to the increas. in the photolumines.ent quantum yield originating from larger grain s.zes.and better crys.allinity.A detailed analys.s.of the X-ray diffraction pattern and the as.mmetric ratio es.imated from the photolumines.ence s.ectra s.ow that the local lattice environment around Eu3+in GdNbO4does.not change s.gnificantly with the codoping of Bi3+and Li+.Our res.lts.indicate that Li+doping is.a promis.ng way to improve the emis.ion properties.of rare-earth ion-doped GdNbO4phos.hors.

关键词： Eu 3+ GdNbO 4 Codoping of Li + Photolumines.ence s.ns.tizer Rare earths

Model dependent analys.s.of D^(+)_(s.→η^(′)l+v_(l) decays.in beyond s.andard model

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Chines. Phys.cs.C 2024年第9期48卷 82-95页

作者： s.Mahata M.Mandal H.Mahapatra s.Bis.as.s.s.hoo Department of Phys.cs National Institute of Technology Durgapur Durgapur 713209West BengalIndia

Motivated by the recent experimental res.lts.of branching fractions.for D^(+)_(s.→η^(′)l+v_(l) decays.which deviate from their s. predictions.we hve inves.igated thes. decays.in W' model and s.alar leptoquark model to determine potential s.gnatures.of new phys.cs.NP) in s.mileptonic charm decays.induced by c→(s.d)l+v_(l) *** recent experimental res.lts.of branching fractions.for s.mileptonic D mes.n decays.new coupling parameters.are predicted for the aforementioned NP *** fraction,forward-backward as.mmetry,and lepton polarization as.mmetry are examined by cons.dering the predicted NP coupling *** res.lts.of branching fractions.in s.alar leptoquark model are found very clos. to the experimental res.lts.and exis. around the range of 1σ *** pres.nted a comparative s.udy of the NP models.to check their s.ns.tivity on thes. *** anticipate that further res.arch on thes. decays.will s.gnificantly s.pport our findings.

关键词： charm decay new phys.cs W′bos.n s.alar leptoquark flavour changing charged current

Firs. evidence for chiral wobbling of triaxial nuclei

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Nuclear s.ience and Techniques 2024年第7期35卷 4-7页

作者： s.Frauendorf Department of Phys.cs.and As.ronomy University of Notre DameNotre DameIN 46556USA

Chirality(Greek“handines.”)is.a property of many com-plex *** molecules.exis. in two forms.one being the mirror image of the *** for our hands.it is.impos.ible to make the images.identical by a s.itable *** two forms.are called left-handed and *** have the s.me binding energy,becaus. the electro-magnetic interaction,which holds.the molecule together,does.not change under a *** properties.that are ins.ns.tive to the geometry are als. the *** different geometry is.the reas.n why the left-handed form turns.the polarization plane of trans.itted light in one direction by s.me angle while the right-handed form turns.it in the oppo-s.te direction by the s.me ***,the geometrical differences.between the two s.ecies.may have other *** two s.ecies.of the carvon molecule s.own in Fig.1 tas.e quite differently.

关键词： turns Chiral mirror

Change in Grain-s.ze Compos.tion of Lignite under Cyclic Freezing-Thawing and Wetting-Drying

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Natural Res.urces 2024年第1期15卷 17-27页

作者： Natalia s. Batugina Vladis.av I. Fedorov Chers.y Ins.itute of Mining of the North s.berian Branch Rus.ian Academy of s.iences Yakutsk Russia

The paper pres.nts.the change in grain-s.ze compos.tion of lignite under cyclic freezing-thawing (FTC) and wetting-drying (WDC). The article s.ows.that in the s.ring and autumn periods.the lignites.can be s.bjected to repeated freezing-thawing and wetting-drying, which determines.the pos.ibility of changing their grain-s.ze compos.tion and s.ructure. Experimental s.udies.in laboratory conditions.on the influence of cyclic freezing-thawing (FTC) and wetting-drying (WDC) on the quality indicators.of lignites.have been carried out, their granulometric (fractional) compos.tion has.been s.udied. Freezing-thawing cycle conditions.are as.follows.(FTC): minimum expos.re temperature: -20°C;maximum: +5°C;relative humidity: 30%;number of proces.ing cycles. 3. Wetting-drying cycles.are as.follows.(WDC): drying temperatures.are +20, +40, +60, +80°C, drying time 90 minutes. the coals.are further s.bjected to rain (s.aking) for a period of water s.turation to humidity of 30% - 40% and dry again. The number of wetting-drying cycles.is.3 times. The tes.s.have revealed the des.ructive effects.of FTC and WDC on the s.mples.of lower metamorphic grade coal, and the cycles.of wet-dry lead to the much higher yield of fine s.zes.(-6+0;-13+0 mm) than the cycles.of freeze-thaw. Furthermore, it is.found that the increas. in the yield of fines.depends.on the heating temperature: coal dis.ntegration proceeds.more intens.vely at a higher temperature of drying.

关键词： Lignite Freezing-Thawing Cycle Wetting-Drying Cycle Grain s.ze Compos.tion Dus. Coal s.orage Los. Quality

Tribological behavior of lubricant-impregnated porous.polyimide

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Friction 2024年第4期12卷 711-725页

作者： Jinbang LI Ningning ZHOU Janet s.s.WONG s.hool of Mechanical Engineering and Mechanics Ningbo UniversityNingbo 315211China Beijing Key Laboratory of Long-life Technology of Precis. Rotation and Trans.is.ion Mechanis.s Beijing Institute of Control EngineeringBeijing 100029China Department of Mechanical Engineering Imperial College LondonLondon SW72AZUK

Porous.materials.impregnated with lubricants.can be us.d in conditions.where limited lubricant is.*** this.work,three porous.polyimides.PPI)with different dens.ties.were ***(PAO)impregnated PPI(iPPI)dis.s.were rubbed agains. s.eel and s.pphire *** operando obs.rvations.of the iPPI-s.pphire contacts.s.ow that oil is.releas.d under an applied load,forming a menis.us.around *** at the outlet is.created at high s.iding *** amount of releas.d oil increas.s.with increas.ng PPI *** moduli,E*,es.imated bas.d on the actual contact s.ze s.ow that trapped oil in iPPIs.contributes.to load *** higher s.eeds.tribological rehydration of the contact occurs.in low dens.ty iPPI,with that E*ris.s.with *** high dens.ty PPIs.high s.eeds.give a cons.antly high E*which is.limited by the vis.oelas.ic properties.of the PPI network and pos.ibly the rate of oil *** of iPPI-s.eel contacts.is.governed by the mechanical properties.of the PPI,the flow of the lubricant,and the roughnes. of the PPI *** low-and medium-dens.ty(highly porous.high roughnes.)PPIs.large amount of oil is.releas.d,and lubrication is.mainly via lubricant res.ricted in the contact in the pores.and pos.ibly tribological *** high dens.ty(low poros.ty)PPI,with lower roughnes.,hydrodynamic lubrication is.achieved which gives.the lowes. *** res.lts.s.ow that polymeric porous.materials.for effective lubrication require the optimization of its.s.rface roughnes.,s.iffnes.,oil flow,and oil retentions.

关键词： polyimide porous.material friction mechanis. polymer limited lubrication

s.herical Functions.on Fuzzy Lie Group

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Advances.in Pure Mathematics 2024年第4期14卷 185-195页

作者： Murphy E. Egwe s.muel s. s.ngodele Department of Mathematics University of Ibadan Ibadan Nigeria

Let G be a locally compact Lie group and its.Lie algebra. We cons.der a fuzzy analogue of G, denoted by called a fuzzy Lie group. s.herical functions.on are cons.ructed and a vers.on of the exis.ence res.lt of the Hel... 详细信息

关键词： Fuzzy s.herical Function Fuzzy Lie Group Fuzzy Manifolds

Finite Deformation, Finite s.rain Nonlinear Dynamics.and Dynamic Bifurcation in TVE s.lids.with Rheology

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Applied Mathematics 2024年第1期15卷 108-168页

作者： Karan s. s.rana s.i s.i Charan Mathi Department of Mechanical Engineering University of Kansas Lawrence US

This.paper pres.nts.a mathematical model cons.s.ing of cons.rvation and balance laws.(CBL) of clas.ical continuum mechanics.(CCM) and ordered rate cons.itutive theories.in Lagrangian des.ription derived us.ng entropy inequality and the repres.ntation theorem for thermovis.oelas.ic s.lids.(TVEs. with rheology. The CBL and the cons.itutive theories.take into account finite deformation and finite s.rain deformation phys.cs.and are bas.d on contravariant deviatoric s.cond Piola-Kirchhoff s.res. tens.r and its.work conjugate covariant Green’s.s.rain tens.r and their material derivatives.of up to order m and n res.ectively. All publis.ed works.on nonlinear dynamics.of TVEs.with rheology are mos.ly bas.d on phenomenological mathematical models. In rare ins.ances. s.me as.ects.of CBL are us.d but are incorrectly altered to obtain mas., s.iffnes. and damping matrices.us.ng s.ace-time decoupled approaches. In the work pres.nted in this.paper, we s.ow that this.is.not pos.ible us.ng CBL of CCM for TVEs.with rheology. Thus. the mathematical models.us.d currently in the publis.ed works.are not the correct des.ription of the phys.cs.of nonlinear dynamics.of TVEs.with rheology. The mathematical model us.d in the pres.nt work is.s.rictly bas.d on the CBL of CCM and is.thermodynamically and mathematically cons.s.ent and the s.ace-time coupled finite element methodology us.d in this.work is.unconditionally s.able and provides.s.lutions.with des.red accuracy and is.ideally s.ited for nonlinear dynamics.of TVEs.with memory. The work in this.paper is.the firs. pres.ntation of a mathematical model s.rictly bas.d on CBL of CCM and the s.lution of the mathematical model is.obtained us.ng unconditionally s.able s.ace-time coupled computational methodology that provides.control over the errors.in the evolution. Both s.ace-time coupled and s.ace-time decoupled finite element formulations.are cons.dered for obtaining s.lutions.of the IVPs.des.ribed by the mathematical model and are pres.nted i

关键词： Thermovis.oelas.icity Rheology Memory Finite s.rain Finite Deformation Nonlinear Dynamics Dynamic Bifurcation Ordered Rate Theories