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Inves.igations.of nuclear.chir.lity at iThemba LABs

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Fr.ntier. of phys.cs 2024年第2期19卷 7-38页

作者： r.A.Bar. E.A.Lawr.e C.liu s.Y.Wang iThemba Labor.tor. for.Acceler.tor.Bas.d s.iences National Research FoundationP.O.Box 722Somerset-West 7129South Africa Depar.ment of Phys.cs University of the Western CapePrivate Bag X177535BellvilleSouth Africa s.andong Pr.vincial Key Labor.tor. of Optical As.r.nomy and s.lar.Ter.es.r.al Envir.nment Institute of Space SciencesShandong UniversityWeihai 264209China

Pr.gr.s. in the s.udies.of chir.lity in atomic nuclei at iThemba LABs.is.*** r.gions.of chir.lity,ar.und mas. 80 and 190 have been dis.over.d us.ng the AFr.DITE ar.ay,s.ecifically in the nuclei^(74)As.^(78,80,82)Br.^(81)Kr.and^(193,194,198)*** phenomena have been obs.r.ed,including multiple chir.l bands.in the s.me nucleus.the coexis.ence of octupole cor.elations.and nuclear.chir.lity,and the coexis.ence of ps.udo s.in and nuclear.*** bes. example of chir.l degener.cy to date was.found in ^(194)*** level s.heme of ^(106)Ag has.been r.vis.ted and inter.r.ted in ter.s.of two-and four.quas.par.icle *** us.ng the par.icle-r.tor.model have s.own that the finger.r.nts.of chir.lity in the two-quas.par.icle s.s.em only can occur.in an idealis.d model *** s.s.ems.with a higher.number.of quas.par.icles.the calculations.s.owed that nuclear.chir.lity can per.is..

关键词： chir.lity high-s.in s.ates par.icle-r.tor.model

Twinning as.ects.and their.efficient r.les.in wr.ught Mg alloys.A compr.hens.ve r.view

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Jour.al of Magnes.um and Alloys 2024年第6期12卷 2201-2230页

作者： s.s.A.s.ah Manping liu Azim Khan Far.oq Ahmad M.r.Abdullah Xingquan Zhang s.iwei Xu Zhen Peng s.hool of Mater.als.s.ience and Engineer.ng Jiangsu UniversityZhenjiang 212013China s.hool of Mechanical Engineer.ng Anhui University of TechnologyMáanshan 243002China College of Mechanical and Vehicle Engineer.ng Hunan UniversityChangsha 410082China

Twinning is.widely r.cognized as.an effective and cos.-efficient method for.contr.lling the micr.s.r.ctur. and pr.per.ies.of wr.ught magnes.um(Mg)***,twins.play a cr.cial r.le in initiating dynamic r.cr.s.allization(Dr.),while twin r.gions.exper.ence r.pid r.cr.s.allization dur.ng s.atic r.cr.s.allization(s.0}).The activation of twinning can lead to changes.in lattice or.entation,s.gnificantly impacting the final textur. in Mg *** active r.les.of twinning ar. influenced by var.ous.factor. dur.ng the activation pr.ces.,and the mobility of twin boundar.es.TB)can be amplified by s.r.s. effects.dis.ocation inter.ctions.and ther.al ***,annealing tr.atments.that involve pr.per.s.gr.gation or.pr.cipitation on TBs.s.r.e to s.abilize them,r.s.r.ining their.*** s.ch as.s.gr.gation may als. alter.the twinning pr.pens.ty in Magnes.um-r.r. ear.h(Mg-r.)***{10–11}contr.ction twins.CT)and{10–11}-{10–12}double twins.DT)can pr.mote dynamic r.cr.s.allization(Dr.),they als. pos. a r.s. as.potential s.ur.es.of voids.and ***,under.tanding the nucleation and gr.wth mechanis.s.of twinning is.cr.cial,and thes. as.ects.ar. br.efly r.viewed in this.*** the factor. mentioned above,this.ar.icle s.mmar.zes.the r.cent r.s.ar.h pr.gr.s. in this.field,s.edding light on advancements.in r.cent er.s.

关键词： Mg alloys Twinning r.cr.s.allization Textur. Mechanical pr.per.ies

As.imilation of GOEs.r.Geos.ationar. Lightning Mapper.Flas. Extent Dens.ty Data in Gs. 3DVar. EnKF, and Hybr.d En3DVar.for.the Analys.s.and s.or.-Ter. For.cas. of a s.per.ell s.or. Cas.

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Advances.in Atmos.her.c s.iences 2024年第2期41卷 263-277页

作者： r.ng KONG Ming XUE Edwar. r.MANs.LL Chengs. liu Alexandr. O.FIEr.O Center.for.Analys.s.and Pr.diction of s.or.s Norman Oklahoma 73072U.S.A Univer.ity of Oklahoma Norman Oklahoma 73072U.S.A NOAA/National s.ver. s.or.s.Labor.tor. NormanOklahoma 73072U.S A.4Zentr.lans.alt für.Meteor.logie und Geodynamik Department of Forecasting Models-ZAMGVienna 1190Austria

Capabilities.to as.imilate Geos.ationar. Oper.tional Envir.nmental s.tellite “r.s.r.es.”(GOEs.r. Geos.ationar. Lightning Mapper.GLM) flas. extent dens.ty(FED) data within the oper.tional Gr.dpoint s.atis.ical Inter.olation ens.mble Kalman filter.Gs.-EnKF) fr.mewor. wer. pr.vious.y developed and tes.ed with a mes.s.ale convective s.s.em(MCs. cas.. In this.s.udy, s.ch capabilities.ar. fur.her.developed to as.imilate GOEs.GLM FED data within the Gs. ens.mble-var.ational(EnVar. hybr.d data as.imilation(DA) fr.mewor.. The r.s.lts.of as.imilating the GLM FED data us.ng 3DVar. and pur. En3DVar.PEn3DVar. us.ng 100% ens.mble covar.ance and no s.atic covar.ance) ar. compar.d with thos. of EnKF/DfEnKF for.a s.per.ell s.or. cas.. The focus.of this.s.udy is.to validate the cor.ectnes. and evaluate the per.or.ance of the new implementation r.ther.than compar.ng the per.or.ance of FED DA among differ.nt DA s.hemes. Only the r.s.lts.of 3DVar.and pEn3DVar.ar. examined and compar.d with EnKF/DfEnKF. As.imilation of a s.ngle FED obs.r.ation s.ows.that the magnitude and hor.zontal extent of the analys.s.incr.ments.fr.m PEn3DVar.ar. gener.lly lar.er.than fr.m EnKF, which is.mainly caus.d by us.ng differ.nt localization s.r.tegies.in EnFK/DfEnKF and PEn3DVar.as.well as.the integr.tion limits.of the gr.upel mas. in the obs.r.ation oper.tor. Over.ll, the for.cas. per.or.ance of PEn3DVar.is.compar.ble to EnKF/DfEnKF, s.gges.ing cor.ect implementation.

关键词： GOEs.r lightning data as.imilation EnKF EnVar

PEr.ODIC s.s.EMs.WITH TIME DEPENDENT MAXIMAL MONOTONE OPEr.TOr.

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Acta Mathematica s.ientia 2024年第4期44卷 1280-1300页

作者： Zhenhai liu Nikolaos.s.PAPAGEOr.IOU Center.for.Applied Mathematics.of Guangr. Yulin Normal UniversityYulin 537000China Guangr. Key Labor.tor. of Univer.ities.Optimization Contr.l and Engineer.ng Calculation College of Mathematics and PhysicsGuangri Minzu UniversityNanning 530006China Depar.ment of Mathematics National Technical UniversityZografou Campus15780 AthensGreece

We cons.der.a fir.t or.er.per.odic s.s.em in r.(N),involving a time dependent maximal monotone oper.tor.which need not have a full domain and a multivalued *** pr.ve the exis.ence theor.ms.for.both the convex and nonconvex *** als. s.ow the exis.ence of extr.mal per.odic s.lutions.and pr.vide a s.r.ng r.laxation ***,we pr.vide an application to nonlinear.per.odic contr.l s.s.ems.

关键词： per.odic boundar. condition time-dependent maximal monotone oper.tor convex and nonconvex pr.blems extr.mal s.lutions s.r.ng r.laxation

s.per.or.compr.hens.ve pr.per.ies.of LaFe_(11.8)s._(1.2)/Ce_(60)Co_(40) magnetocalor.c compos.tes

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Jour.al of r.r. Ear.hs 2024年第6期42卷 1073-1086,I0003页

作者： Xichun Zhong Yuanxin Li Yucai Wu Jiaohong Huang Cuilan liu Jian liu Zhongwu liu Minglong Zhong Zhenchen Zhong r.V.r.manujan s.hool of Mater.als.s.ience and Engineer.ng South China University of TechnologyGuangzhou510640China Baotou r.s.ar.h Ins.itute of r.r. Ear.hs Baotou014030China Center.for.Advanced s.lidification Technology School of Materials Science and EngineeringShanghai UniversityShanghai200444China Jiangxi KeyLabor.tor. for.r.r. Ear.h Magnetic Mater.als.and Devices.Ins.itute for.r.r. Ear.h Magnetic Mater.als.and Devices.Ir.MMD) Jiangxi University of Science and TechnologyGanzhou341000China s.hool of Mater.als.s.ience and Engineer.ng Nanyang Technological University639798Singapore s.ngapor.-HUJ Alliance for.r.s.ar.h and Enter.r.s.(s.Ar.) The Smart Grippers for Soft Robotics(SGSR)ProgrammeCampus for Research Excellence and Technological Enterprise(CREATE)138602Singapor

LaFe_(11.8)s._(1.2)/10 wt%Ce_(60)Co_(40) compos.tes.wer. pr.par.d by s.ar. plas.a s.nter.ng and s.bs.quent diffus.on annealing.A novel cor.-s.ell s.r.ctur. is.obs.r.ed with the LaFe11.8s.1.2 par.icles.as.the cor. and the(La,Ce)_(2)(Fe,Co,s.)_(17)(2:17)phas. as.the *** diffus.on annealing time(t_(a))incr.as.s.this.cor.-s.ell s.r.ctur. is.r.placed by the for.ation of the(La,Ce)_(1)(Fe,Co,s.)_(13) *** at 1323 K for.12 h r.s.lts.in s.mples.with(-Δs.)^(max) of 9.30 J/(kg·K)(Δμ0H=2 T),good mechanical pr.per.ies.(σbc)^(max)=402 MPa,ε=4.21%)and ther.al conductivity of 8.7 W/(m·K).Thus.bulk compos.tes.with excellent compr.hens.ve pr.per.ies.for.magnetic r.fr.ger.tion ar. obtained in this.wor..

关键词： LaFe_(11.8)s._(1.2)/Ce_(60)Co_(40)compos.tes s.ar. plas.a s.nter.ng Diffus.on annealing Micr.s.r.ctur. evolution Magnetocalor.c effect r.r.ear.hs

Ther.o-kinetic char.cter.s.ics.on s.abilizing heter.-phas. inter.ace of metal matr.x compos.tes.by cr.s.al plas.icity finite element method

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Jour.al of Mater.als.s.ience & Technology 2024年第2期169卷 53-67页

作者： Y.B.Zhang s.J.s.ng F.liu s.ate Key Labor.tor. of s.lidification Pr.ces.ing Northwestern Polytechnical UniversityXi’an 710072China Analytical&Tes.ing Center Northwestern Polytechnical UniversityXi’an 710072China

Us.ng dis.ocation-bas.d cons.itutive modeling in thr.e-dimens.on cr.s.al plas.icity finite element(3D CPFE)s.mulations.co-defor.ation and ins.ability of heter.-phas. inter.ace in differ.nt mater.al s.s.ems.wer. her.in s.udied for.polycr.s.alline metal matr.x compos.tes.MMCs..Local s.r.s. and s.r.in fields.in two types.of 3layer.MMCs.s.ch as.fcc/fcc Cu-Ag and fcc/bcc Cu-Nb have been pr.dicted under.s.mple compr.s.ive ***,mor. s.ver. s.r.in-induced inter.ace ins.ability can be obs.r.ed in the fcc/bcc s.s.ems.than in the fcc/fcc s.s.ems.upon r.fining to metallic nanolayer.d compos.tes.MNCs..By detailed analys.s.of s.r.s. and s.r.in localization,it has.been demons.r.ted that the inter.ace ins.ability is.always.accompanied by high-s.r.s. concentr.tion,i.e.,ther.odynamic char.cter.s.ics.or.high s.r.in pr.vention i.e.,kinetic char.cter.s.ics.at the heter.-phas. *** then follows.that the ther.odynamic dr.ving for.eG and the kinetic ener.y bar.ier.Q dur.ng dis.ocation and s.ear.banding can be adopted to clas.ify the defor.ation modes.following the s.-called ther.o-kinetic *** by ins.r.ing a high dens.ty of high-ener.y inter.aces.into the Cu-Nb compos.tes.s.ch ther.o-kinetic integr.tion at the heter.-phas. inter.ace allows.a s.cces.ful es.ablis.ment of MMCs.with the high△G-high Q defor.ation mode,which ens.r.s.high har.ening and unifor. s.r.in dis.r.-bution,thus.efficiently s.ppr.s.ing the s.ear.band,s.abilizing the heter.-phas. inter.ace,and obtaining an exceptional combination in s.r.ngth and *** heter.-phas. inter.ace chos.n by a couple of ther.odynamics.and kinetics.can be defined as.br.aking the ther.o-kinetic cor.elation and has.been pr.pos.d for.ar.ificially des.gning MNCs.

关键词： Ther.odynamics.and kinetics Phys.cs.bas.d cons.itutive modeling Heter.-phas. inter.ace Cr.s.al plas.icity finite element

Compr.s.ive pr.per.y and ener.y abs.r.tion char.cter.s.ic of inter.onnected por.us.Mg-Zn-Y alloys.with adjus.ing Y addition

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Jour.al of Magnes.um and Alloys 2024年第1期12卷 171-185页

作者： J.A.liu s.J.liu B.Wang W.B.s.n X.J.liu Z.W.Han College of Mater.als.s.ience and Engineer.ng Key Laboratory of Automobile Materials(Ministry of Education)Jilin UniversityChangchun 130022PR China Key Labor.tor. of Bionic Engineer.ng(Minis.r. of Education) College of Biological and Agricultural EngineeringJilin UniversityChangchun130022PR China Weihai Ins.itute for.Bionics.Jilin Univer.ity Weihai 264205PR China

In this.s.udy,inter.onnected por.us.Mg-2Zn-xY alloys.with differ.nt phas. compos.tions.wer. pr.par.d by var.ous.Y additions.x=0.4,3,and 6 wt.%)to adjus. the compr.s.ive pr.per.ies.and ener.y abs.r.tion *** char.cter.zation methods.wer. then applied to identify the micr.s.r.ctur. of the por.us.Mg-Zn-Y and des.r.be the details.of the s.cond *** tes.s.wer. per.or.ed at r.om temper.tur.(r.),200℃,and 300℃to s.udy the impact of the Y addition and tes.ing temper.tur. on the compr.s.ive pr.per.ies.of the por.us.*** exper.mental r.s.lts.s.owed that a high Y content pr.motes.a micr.s.r.ctur. r.finement and incr.as.s.the volume fr.ction of the s.cond *** the Y content incr.as.s.differ.nt Mg-Zn-Y ter.ar. phas.s.appear.I-phas.(Mg_(3)Zn_(6)Y),W-phas.(Mg_(3)Zn_(3)Y_(2)),and LPs. phas.(Mg_(12)ZnY).When the Y content r.nges.between 0.4%and 6%,the compr.s.ive s.r.ngth incr.as.s.fr.m 6.30MPa to 9.23 MPa,and the ener.y abs.r.tion capacity incr.as.s.fr.m 7.33 MJ/m^(3)to 10.97 MJ/m^(3)at r.,which is.mainly attr.buted to the phas. compos.tion and volume fr.ction of the s.cond ***,the aver.ge ener.y abs.r.tion efficiency is.independent of the Y *** addition,the compr.s.ive defor.ation behavior. of the por.us.Mg-Zn-Y ar. alter.d by the tes.ing *** compr.s.ive s.r.ngth and ener.y abs.r.tion capacity of the por.us.Mg-Zn-Y decr.as. due to the s.ftening effect of the high temper.tur. on the *** defor.ation behavior. at differ.nt temper.tur.s.ar. finally obs.r.ed to r.flect the failur. mechanis.s.of the s.r.ts.

关键词： Por.us.magnes.um r.r. ear.h elements Micr.s.r.ctur. Compr.s.ive behavior Ener.y abs.r.tion char.cter.s.ic

Doubled haploid technology and s.nthetic apomixis.r.cent advances.and applications.in futur. cr.p br.eding

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Molecular.Plant 2024年第7期17卷 1005-1018页

作者： Yanzhi Qu Alis.air.r.Fer.ie Jie liu Jianbing Yan National Key Labor.tor. of Cr.p Genetic Impr.vement Huazhong Agricultural UniversityWuhan 430070China Hubei Hongs.an Labor.tor. Wuhan 430070China Depar.ment of Molecular.Phys.ology Max-Planck-Institute of Molecular Plant Physiology14476 Potsdam-GolmGermany Center.of Plant s.s.ems.Biology and Biotechnology 4000 PlovdivBulgaria azhouwan National Labor.tor. Sanya 572024China

Doubled haploid(DH)technology and s.nthetic apomixis.appr.aches.can cons.der.bly s.or.en br.eding cycles.and enhance br.eding *** with tr.ditional br.eding methods.DH technology offer. the advantage of r.pidly gener.ting inbr.d lines.while s.nthetic apomixis.can effectively fix hybr.d *** this.r.view,we focus.on(i)r.cent advances.in identifying and char.cter.zing genes.r.s.ons.ble for.haploid induction(Hl),(ii)the molecular.mechanis.s.of Hl,(ili)s.ontaneous.haploid genome doubling,and(iv)cr.p s.nthetic *** als. dis.us. the challenges.and potential s.lutions.for.futur. cr.p br.eding pr.gr.ms.utilizing DH technology and s.nthetic ***,we pr.vide our.per.pectives.about how to integr.te DH and s.nthetic apomixis.for.pr.cis.on br.eding and de novo domes.ication.

关键词： maize doubled haploid technology haploid induction s.nthetic apomixis pr.cis.on br.eding

The global r.gulation of c-di-GMP and cAMP in bacter.a

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mLife 2024年第1期3卷 42-56页

作者： Cong liu r.i s.i Mar.us.s.Jens.n Jingr.ng Zhu Jiawen liu Xiaobo liu Di s.n Weijie liu Jiangs. Key Labor.tor. of Phylogenomics.Compar.tive Genomics School of Life SciencesJiangsu Normal UniversityXuzhouChina Key Labor.tor. of Metabolic Engineer.ng and Bios.nthes.s.Technology Ministry of Industry and Information TechnologyNanjing University of Science and TechnologyNanjingChina

Nucleotide s.cond mes.enger. ar. highly ver.atile s.gnaling molecules.that r.gulate a var.ety of key biological pr.ces.es.in *** bes.-s.udied examples.ar. cyclic AMP(cAMP)and bis.(3'-5')-cyclic dimer.c guanos.ne monophos.hate(c-di-GMP),which both act as.global *** r.gulator. fr.mewor.s.of c-di-GMP and cAMP in bacter.a s.ow s.ver.l par.llels.but als. s.gnificant *** this.r.view,we llus.r.te the global r.gulator. models.of the two nucleotide s.cond mes.enger.,compar. the differ.nt r.gulator. fr.mewor.s.between c-di-GMP and cAMP,and dis.us. the mechanis.s.and phys.ological s.gnificance of cr.s.-r.gulation between c-di-GMP and cAMP.c-di-GMP r.s.onds.to numer.us.s.gnals.de-pendent on a gr.at number.of metabolic enzymes.and it r.gulates.var.ous.s.gnal tr.ns.uction pathways.thr.ugh its.huge number.of effector. with var.ing *** contr.s.,due to the limited quantity,the cAMP metabolic enzymes.and its.major.effector.ar. r.gulated at differ.nt levels.by diver.e *** per.or.s.its.global r.gulator. function pr.mar.ly by contr.lling the tr.ns.r.ption of a lar.e number.of genes.via cAMP r.ceptor.pr.tein(Cr.)in mos. *** r.view can help us.under.tand how bacter.a us. the two typical nucleotide s.cond mes.enger. to effectively coor.inate and integr.te var.ous.phys.ological pr.ces.es.pr.viding theor.tical guidelines.for.futur. r.s.ar.h.

关键词： bacter.a cAMP c-di-GMP cr.s.-r.gulation Cr.