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Nonline.r wave.dispe.sion in monoatomic chains with lumpe. and distribute. masse.:discre.e.and continuum mode.s

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Applie. Mathe.atics and Me.hanics(e.glish e.ition) 2024年第4期45卷 633-648页

作者： e.GHAVANLOO s.e.-BORGI school of Me.hanical e.gine.ring Shiraz UniversityShiraz 71963-16548Iran Me.hanical e.gine.ring Program Texas A&M University at QatarDoha 23874Qatar

The.main obje.tive.of this pape. is to inve.tigate.the.influe.ce.of ine.tia of nonline.r springs on the.dispe.sion be.avior of discre.e.monoatomic chains with lumpe. and distribute. *** de.e.ope. mode. can re.re.e.t the.wave.propagation proble. in a non-homoge.e.us mate.ial consisting of he.vy inclusions e.be.de. in a *** inclusions are.ide.lize. by lumpe. masse.,and the.matrix be.we.n adjace.t inclusions is mode.e. by a nonline.r spring with distribute. ***,the.mode. is capable.of de.icting the.wave.propagation in bi-mate.ial bars,whe.e.n the.first mate.ial is re.re.e.te. by a rigid particle.and the.se.ond one.is re.re.e.te. by a nonline.r spring with distribute. *** discre.e.mode. of the.nonline.r monoatomic chain with lumpe. and distribute. masse. is first conside.e.,and a close.-form e.pre.sion of the.dispe.sion re.ation is obtaine. by the.se.ond-orde. Lindste.t-Poincare.me.hod(LPM).Ne.t,a continuum mode. for the.nonline.r monoatomic chain is de.ive. dire.tly from its discre.e.lattice.mode. by a suitable.continualization *** subse.ue.t use.of the.se.ond-orde. me.hod of multiple.scale.(MMs)facilitate. the.de.ivation of the.corre.ponding nonline.r dispe.sion re.ation in a close. *** nove.tie. of the.pre.e.t study consist of(i)conside.ing the.ine.tia of nonline.r springs on the.dispe.sion be.avior of the.discre.e.mass-spring chains;(ii)de.e.oping the.se.ond-orde. LPM for the.wave.propagation in the.discre.e.chains;and(iii)de.iving a continuum mode. for the.nonline.r monoatomic chains with lumpe. and distribute. ***,a parame.ric study is conducte. to e.amine.the.e.fe.ts of the.de.ign parame.e.s and the.distribute. spring mass on the.nonline.r dispe.sion re.ations and phase.ve.ocitie. obtaine. from both the.discre.e.and continuum *** parame.e.s include.the.ratio of the.spring mass to the.lumpe. mass,the.nonline.r stiffne.s coe.ficie.t of the.spring,and the.wave.amplitude.

关键词： nonline.r mass-spring chain discre.e.mode. continuum mode. Lindste.tPoincare.me.hod(LPM) me.hod of multiple.scale.(MMs) dispe.sion phase.ve.ocity

e.aluation of the.se.smic be.avior of re.nforce. concre.e.structure. with flat slab-column gravity frame.and she.r walls through nonline.r analysis me.hods

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e.rthquake.e.gine.ring and e.gine.ring Vibration 2024年第3期23卷 713-726页

作者： M.A.Najafgholipour s.He.darian Radbakhsh e.e.fani De.artme.t of Civil and e.vironme.tal e.gine.ring Shiraz University of TechnologyShiraz ***Iran De.artme.t of Building Civiland Environmental EngineeringConcordia UniversityMontréal H3G 1M8Canada

This pape. pre.e.ts an inve.tigation of the.se.smic be.avior of re.nforce. concre.e.RC)structure. in which she.r walls are.the.main late.al load-re.isting e.e.e.ts and the.participation of flat slab floor syste.s is not conside.e. in the.se.smic de.ign *** this re.ard,the.be.avior of six prototype.structure.(with diffe.e.t he.ghts and plan layouts)is inve.tigate. through nonline.r static and time.history analyse.,imple.e.te. in the.Ope.se.s *** re.ults of the.analyse. are.pre.e.te. in te.ms of the.be.avior of the.slab-column conne.tions and the.r mode.of failure.at diffe.e.t loading ***,the.global re.ponse.of the.buildings is discusse. in te.ms of some.parame.e.s,such as late.al ove.stre.gth due.to the.gravity flat slab-column *** to the.nonline.r static analyse.,in structure. in which the.slab-column conne.tions we.e.de.igne. only for gravity loads,the.slab-column conne.tions e.hibite. a punching mode.of failure.e.e. in the.e.rly stage. of ***,the.punching failure.was e.iminate. in structure. in which a minimum transve.se.re.nforce.e.t re.omme.de. in ACI 318(2019)was provide. in the.slabs at joint ***,de.pite.ne.le.ting the.contribution of gravity flat slab-column frame. in the.late.al load re.istance.of the.structure.,a re.ative.y significant ove.stre.gth was impose. on the.structure. by the.gravity frame..

关键词： RC flat slab-column frame. se.smic be.avior nonline.r analysis time.history analysis

e.ission colour tuning in KLnF_(4):Yb^(3+),e.^(3+)/Ho^(3+)phosphor

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Journal of Rare.e.rths 2024年第1期42卷 57-65,I0002页

作者： Janani K Gayathri e.Vijayatha V Ramasubramanian s Thiyagarajan P De.artme.t of scie.ce.and Humanitie. Nehru Institute of TechnologyKaliapuramThirumalayampalayamCoimbatoreIndia De.artme.t of scie.ce. Amrita School of Physical SciencesAmrita Vishwa VidyapeethamCoimbatoreIndia De.artme.t of Physics Anna UniversityChennaiIndia

KLnF_(4):Yb^(3+),e.^(3+)/Ho^(3+)(Ln=Y,Yb,Gd)phosphors we.e.pre.are. by solid-state.re.ction *** e.ch of the.Yb^(3+)/e.^(3+)and Yb^(3+)/Ho^(3+)co-dope. phosphors inde.e.de.tly,phase.confirmation and morphological e.amination we.e.accomplishe. using the.X-ray diffraction te.hnique.and scanning e.e.tron microscope.analysis.X-ray photoe.e.tron spe.troscopy analysis shows the.charge.state.and e.iste.ce.of lanthanide. and *** lumine.ce.ce.e.issions of gre.n and re. colour we.e.de.e.te. for the.synthe.ize. *** change. in the.upconve.te. e.ission inte.sitie. and colour output pe.taining to the.change.of the.lanthanide.host matrix along with dopants we.e.inve.tigate. for the.pre.are. *** the.upconve.sion lumine.ce.ce.e.bium-dope. sample. e.hibit a pre.ominance.of re. e.ission while.holmium-dope. sample. display a pre.ale.ce.of gre.n *** rare.e.rth e./Ho dope. KYbF4shows strong re. e.ission compare. to othe. ***_(4):Yb,e./Ho e.hibits re.ative.y significant gre.n upconve.rsion e.issions,while.Yb,e.-dope. KGdF_(4)host displays a 10-fold incre.se.in gre.n/re. e.ission ratio with an incre.se.in the.input powe. of 20-780 *** photolumine.ce.ce.studie. and de.ay curve.analysis we.e.carrie. out using UV light e.citation for the.de.e.ope. phosphors.A highe. life.ime.of 2.2 ms was me.sure. for the.downshifting re. e.ission in the.Ho dope. KYbF_(4)*** study sugge.ts a pote.tial for colour tunability in the.upconve.sion and downshifting e.issions through host modifications to the.fluoride.phosphor.

关键词： Rare.e.rths e.e.gy transfe. upconve.sion Downshifting Colour coordinate.

Adipose.de.ive. re.e.e.ative.the.apie. for the.tre.tme.t of kne. oste.arthritis

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World Journal of ste. Ce.ls 2024年第4期16卷 324-333页

作者： Ilias e.e.anome.itakis Wasim s Khan Division of Trauma and Orthopae.ic surge.y Addenbrooke’s HospitalCambridge University Hospitals NHS Foundation TrustCambridge CB20QQUnited Kingdom Division of Trauma and Orthopae.ic surge.y Department of SurgeryUniversity of CambridgeCambridge CB20QQUnited Kingdom

Kne. oste.arthritis is a de.e.e.ative.condition with a significant dise.se.burde. and no dise.se.modifying *** tre.tme.t ultimate.y re.uire. joint *** capable.of re.e.e.ating cartilage.could significantly re.uce.financial and clinical *** re.e.e.ative.pote.tial of me.e.chymal stromal ce.ls(MsCs)has be.n e.te.sive.y studie. in the.conte.t of kne. *** has yie.de. promising re.ults in human studie.,and is like.y a product of immunomodulatory and chondroprote.tive.biomole.ule. produce. by MsCs in re.ponse.to ***-de.ive. MsCs(AsCs)are.be.oming incre.singly popular owing to the.r re.ative.e.se.of isolation and high prolife.ative.*** vascular fraction(sVF)and micro-fragme.te. adipose.tissue.MFAT)are.produce. by the.e.zymatic and me.hanical disruption of adipose.tissue.*** avoids e.pansion of isolate. AsCs e. vivo and the.r composition of he.e.oge.e.us ce.l populations,including immune.ce.ls,may pote.tiate.the.re.arative.function of *** this e.itorial,we.comme.t on a multice.te. randomize. trial re.arding the.e.ficacy of MFAT in tre.ting kne. *** discuss the.study’s findings in the.conte.t of e.e.ging e.ide.ce.re.arding adipose.de.ive. re.e.e.ative.*** unde.lying me.hanism of action of AsCs is propose. while.drawing important distinctions be.we.n the.prope.tie. of isolate. AsCs,sVF,and MFAT.

关键词： Kne. oste.arthritis Me.e.chymal stromal ce.ls Adipose.tissue stromal vascular fraction Micro-fragme.te. adipose.tissue Re.e.e.ation

Chromomagne.ic dipole.mome.ts of light quarks in the.be.te.t little.Higgs mode.

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Chine.e.Physics C 2024年第10期48卷 125-136页

作者： T.Cisne.os-Pére. e.Cruz-Albaro A.Y.Oje.a-Castañe.a s.e.solís-Núñe. Unidad Académica de.Cie.cias Químicas Universidad Autónoma de ZacatecasApartado Postal C-58598060 ZacatecasMexico Facultad de.Física Universidad Autónoma de ZacatecasApartado Postal C-58098060 ZacatecasMexico

In this study,we.inve.tigate. the.anomalous Chromomagne.ic Dipole.Mome.t(CMDM),de.ote. as μ_(q)^(BLHM),of light quarks q=(u,c,d,s,b) within the.frame.ork of the.Be.te.t Little.Higgs Mode.(BLHM)as an e.te.sion of the.standard Mode.(sM).Our inve.tigation e.compasse. nove. inte.actions among the.light quarks,he.vy quark B,and he.vy bosons (W'^(±),H^(±),φ^(±),η^(±))incorporating the.e.te.de. Cabibbo-Kobayashi-Maskawa(CKM)matrix characte.istic of the.*** thoroughly e.plore. the.pe.missible.parame.e. space.yie.ding a spe.trum of CMDM value. ranging from 10^(-10) to 10^(-3).

关键词： be.ond standard mode. flavor physics chromomagne.ic dipole light quarks

CLAssIFICATIONs OF DUPIN HYPe.sURFACe. IN LIe.sPHe.e.Ge.Me.RY

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Acta Mathe.atica scie.tia 2024年第1期44卷 1-36页

作者： Thomas e.Ce.IL De.artme.t of Mathe.atics and Compute. scie.ce College of the Holy CrossWorcesterMA01610USA

This is a surve. of local and global classification re.ults conce.ning Dupin hype.surface. in s^(n)(or R^(n))that have.be.n obtaine. in the.conte.t of Lie.sphe.e.*** e.phasis is on re.ults that re.ate.Dupin hype.surface. to isoparame.ric hype.surface. in *** with the.e.classification re.ults,many important conce.ts from Lie.sphe.e.ge.me.ry,such as curvature.sphe.e.,Lie.curvature.,and Le.e.dre.lifts of submanifolds of s^(n)(or R^(n)),are.de.cribe. in *** pape. also contains se.e.al important constructions of Dupin hype.surface. with ce.tain spe.ial prope.tie..

关键词： Dupin hype.surface. isoparame.ric hype.surface. Lie.sphe.e.ge.me.ry Lie.sphe.e.transformations Lie.curvature.

Inve.tigating the.impact of the.unive.sal function of the.nucle.r proximity pote.tial in he.vy-ion fusion cross se.tions

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Communications in The.re.ical Physics 2024年第5期76卷 86-93页

作者： R Gharae. e.sarvari De.artme.t of Physics Sciences FacultyHakim Sabzevari UniversityPO Box 397SabzevarIran De.artme.t of Physics Faculty of ScienceFerdowsi University of MashhadPO Box 91775-1436MashhadIran scie.ce.Faculty Department of PhysicsTarbiat Modares UniversityTehranIran

The.fusion barrie.s and cross se.tions of 15 colliding syste.s with 320≤Z_(1)Z_(2)≤1512 are.inve.tigate. in de.ail to unde.stand the.influe.ce.of the.unive.sal function of proximity pote.tial formalism in the.he.vy-ion fusion *** re.lize.this goal,we.se.e.t thre. ve.sions of the.phe.ome.ological proximity pote.tials,including Prox.77,Zhang 2013,and Guo 2013,to calculate.the.nucle.s-nucle.s *** e.pe.ime.tal fusion cross se.tions for the.se.e.te. re.ctions are.analyze. using the.standard couple.-channe. calculations,including couplings to the.low-lying 2^(+)and 3^(-)state. in the.targe. and *** calculate. re.ults show that the.unive.sal functions of the.Guo 2013 and Prox.77 mode.s provide.the.lowe.t and highe.t fusion barrie.s,*** addition,it is found that the.he.ght of the.fusion barrie.s is e.hance. by incre.sing the.mass numbe. of the.proje.tile.from light to he.vy *** highe.t se.sitivity to the.mass numbe. of the.proje.tile.be.ongs to the.re.ults of Prox.77.A discussion is also pre.e.te. on the.influe.ce.of the.unive.sal function on the.radial be.avior of the.inte.action pote.tial in the.allowe. re.ion for ove.lapping *** re.ults re.e.l that the.be.t fit to the.e.pe.ime.tal data of the.fusion cross se.tions for the.re.ctions involving light and me.ium nucle. is obtaine. using the.unive.sal function of the.Zhang 2013 *** the.he.vie. syste.s,the.re.ults of the.Guo 2013 mode. at sub-barrie. e.e.gie. provide.a good de.cription of the.available.data.

关键词： fusion re.ctions proximity-type.pote.tials unive.sal function couple.-channe. calculations

Are.hydride. unde. high-pre.sure.high-te.pe.ature.supe.conductors?

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National scie.ce.Re.ie. 2024年第7期11卷 9-12页

作者： J.e.Hirsch De.artme.t of Physics University of California

Contrary to the.curre.t conse.sus, I argue.that the.e.isting e.ide.ce.for high-te.pe.ature.supe.conductivity in hydride. unde. high pre.sure.is not compe.ling. I sugge.t that the.focus of the.fie.d should urge.tly shift to e.tablish une.uivocally e.pe.ime.tally whe.he. or not supe.conductivity in pre.surize. hydride. e.ists, inste.d of continuing to se.rch for ne. mate.ials that might show e.usive.signals of unprove. supe.conductivity at e.e. highe. te.pe.ature.. The.implications of a ne.ative.finding for the.the.re.ical unde.standing of supe.conductivity are.discusse..

关键词： Hydride.

Fue. ce.l stack de.ign and mode.ling with a double.stage.boost conve.te. couple. to a single.phase.inve.te.

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Cle.n e.e.gy 2024年第1期8卷 188-196页

作者： Base. e.e.nagi Ahme. M.Ismaie. Hany s.e.Mansour M.N.Abd-Alwahab e.e.trical e.gine.ring De.artme.t Faculty of EngineeringSuez Canal UniversityIsmailia 41522Egypt

A compre.e.sive.proton-e.change.me.brane.fue. ce.l stack mode. was de.e.ope. and inte.rate. with a two-stage.DC/DC boost *** was dire.tly couple. to a single.phase.two le.e.s-four pulse.)inve.te. without a *** pulse.width modu-lation signal was use. to inde.e.de.tly re.ulate.e.e.y conve.te. *** conve.te. was mode.le. using a MATLAB®/simulink®e.vironme.t and an appropriate.voltage.control *** analysis fe.ture. of the.sugge.te. circuit we.e.cre.te. and,through e.tablishe. e.pe.ime.ts,the.simulation re.ults we.e.ve.ifie..A single.phase.two le.e.s-four pulse.)inve.te. control circuit was te.te. and it produce. a pure.sinusoidal wave.orm with voltage.*** matche. the.voltage.of the.ne.work in te.ms of amplitude.and fre.ue.cy.A sinusoidal pulse.width modulation approach was pe.forme. using a single.phase.two le.e.s-four pulse.)pulse.width modulation *** re.ults de.onstrate. an e.hance.e.t in the.standard of the.output wave.and tune. the.de.d time.with a re.uction of 63μs compare. with 180μs in conve.tional te.hnique..

关键词： Pe. fue. ce.l pulse.width modulation single.phase.inve.te. and double.stage.DC/DC boost conve.te.