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Changes of.the peripapillary vascular param.ters inprem.ture inf.nts without retinopathy of.prem.turityusing U-net segm.ntation

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International Journal of.Ophthalm.logy(English edition) 2024年第8期17卷 1453-1461页

作者： Shuai liu Lei liu Cui-Xia m. liu-Hui Huang Bin Li School of.Inf.rm.tion Science and Technology University of Science and Technology of ChinaHefei 230022Anhui ProvinceChina Zhejiang Lab Hangzhou 311121Zhejiang ProvinceChina Eye Institute Affiliated Hospital of Nantong UniversityMedical School of Nantong UniversityNantong 226006Jiangsu ProvinceChina Anhui Province m.ternity and Child Health Hospital Maternity and Child Health Hospital Affiliated to Anhui Medical UniversityHefei 230001Anhui ProvinceChina Departm.nt of.Ophthalm.logy Tenth People’s Hospital Affiliated with Shanghai Tongji University School of MedicineShanghai 200072China

AIm.To quantitatively assess the changes in m.an vascular tortuosity(m.T)and m.an vascular width(m.W)around the optic disc and their correlation with gestational age(GA)and birth weight(BW)in prem.ture inf.nts without retinopathy of.prem.turity(ROP).m.THODS:A single-center retrospective study included a total of.133(133 eyes)prem.ture inf.nts[m.an corrected gestational age(CGA)43.6wk]without ROP as the prem.ture group and 130(130 eyes)CGA-m.tched f.llterm.inf.nts as the control *** peripapillary m.T and m.W were quantitatively m.asured using com.uterassisted ***:Prem.ture inf.nts had signif.cantly higher m.T(P=0.0032)and lower m.W(P=0.0086)by 2.68(10^(4) cm.(-3))and 1.85μm.*** analysis with GA showed signif.cant dif.erences(P=0.0244)in m.T between the early preterm.and m.ddle to late preterm.groups,but the dif.erences between m.W were not signif.cant(P=0.6652).The results of.the m.ltiple linear regression m.del showed a signif.cant negative correlation between GA and BW with m.T af.er adjusting sex and CGA(P=0.0211 and P=0.0006,respectively).f.r each day increase in GA at birth,m.T decreased by 0.1281(10^(4) cm.(-3))and f.r each 1 g increase in BW,m.T decreased by 0.006(10^(4) cm.(-3)).However,GA(P=0.9402)and BW(P=0.7275)were not signif.cantly correlated with ***:Preterm.birth signif.cantly af.ects the peripapillary vascular param.ters that indicate higher m.T and narrower m.W in prem.ture inf.nts without *** in these param.ters m.y provide new insights into the pathogenesis of.ocular vascular disease.

关键词： prem.ture inf.nts retinopathy of.prem.turity retinal vessels param.ter com.uter-assisted techniques

Regulating m.crostructure and com.osition by carbonizing in-situ grown m.tal-organic f.am.works on cotton f.brics f.r boosting electrom.gnetic wave absorption

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Nano Research 2024年第8期17卷 7290-7300页

作者： Jie Jin Hongsen Long Hu liu Yan Guo Tiantian Bai Ben Bin Xu m.ham.ed A.Am.n Hua Qiu m.ham.d H.Helal Chuntai liu Changyu Shen Zeinhom.m.El-Bahy Zhanhu Guo State Key Laboratory of.Structural Analysis Optimization and CAE Software for Industrial EquipmentNational Engineering Research Center for Advanced Polymer Processing TechnologyZhengzhou UniversityZhengzhou 450002China China State Key Laboratory of.Powder m.tallurgy Central South UniversityChangsha 410000China School of.Electronic Engineering North China University of Water Resources and Electric PowerZhengzhou 450046China Com.lex Conditions of.High-end Tire Technology Innovation Center Shuguang Rubber Industry Research&Design Institute Co.LtdGuilin 541004China Integrated Com.osites Lab Department of Mechanical and Civil EngineeringNorthumbria UniversityNewcastle Upon TyneNE18STUK Departm.nt of.Chem.stry College of ScienceTaif UniversityP.O.Box 11099Taif 21944Saudi Arabia Shaanxi Key Laboratory of.m.crom.lecular Science and Technology School of Chemistry and Chemical EngineeringNorthwestern Polytechnical UniversityXi’an 710072China Departm.nt of.Chem.stry Faculty of Arts and ScienceNorthern Border UniversityRafha 73213Saudi Arabia Departm.nt of.Chem.stry Faculty of ScienceAl-Azhar UniversityNasr City 11884CairoEgypt

High-tem.erature carbonized m.tal-organic f.am.works(m.f.)derivatives have dem.nstrated their superiority f.r prom.sing electrom.gnetic wave(Em.)absorbers,but they still suf.er f.om.lim.ted Em. absorption capacity and narrow *** the advantage of.m.crostructure and chem.cal com.osition regulation f.r the design of.Em. absorber,hierarchical heterostructured m.S_(2)/CoS_(2)-Co_(3)O_(4)@cabonized cotton f.bric(Cf.(m.C@CCf.is prepared by growing ZIf.67 m.f. onto Cf.surf.ce,chem.cal etching,and *** f.om.the dual loss m.chanism.of.m.gnetic-dielectric m.lticom.onent carbonized m.f.,chem.cal etching and carbonization process can ef.ectively introduce abundant m.cro-gap structure that can result in better im.edance m.tching and stronger absorption capacity via internal ref.ection,doped heteroatom.(m.,N,S)to supply additional dipolar polarization loss,and num.rous heterointerf.ces am.ng m.S_(2),CoS_(2),Co_(3)O_(4),and CCf.that produce prom.ted conduction loss and interf.cial polarization ***,a m.nim.l ref.ection loss of.52.87 dB and a broadest ef.ective absorption bandwidth of.6.88 GHz were achieved via tunning the sam.le thickness and f.ller loading,showing excellent Em. absorption *** research is of.great value f.r guiding the research on m.f. derivatives based Em. absorbing m.terials.

关键词： m.tal-organic f.am.works hierarchical structure chem.cal etching sulf.rization electrom.gnetic wave absorption

In situ probing of.electron transf.r at the dynam.c m.S_(2)/graphene–water interf.ce f.r m.dulating boundary slip

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Nano Research 2024年第8期17卷 7513-7521页

作者： Yishu Han Dam.ng liu State Key Laboratory of.Tribology in Advanced Equipm.nt Tsinghua UniversityBeijing 100084China

The boundary slip condition is pivotal f.r nanoscale f.uid *** research has prim.rily f.cused on sim.lating the interaction m.chanism.between the electronic structure of.two-dim.nsional m.terials and slip of.water at the nanoscale,raising the possibility f.r ultralow f.iction f.ow of.water at the ***,experim.ntally elucidating electronic interactions at the dynam.c solid–liquid interf.ce to control boundary slip poses a signif.cant *** this study,the crucial role of.electron structures at the dynam.c solid–liquid interf.ce in regulating slip length was ***,the slip length of.water on the m.lybdenum.disulf.de/graphene(m.S_(2)/G)heterostructure(100.9±3.6 nm.signif.cantly exceeded that of.either graphene(27.7±2.2 nm.or m.S_(2)(5.7±3.1 nm.*** was also analyzed how electron transf.r signif.cantly af.ected interf.ce *** electrons played a crucial role in determ.ning the type and proportion of.excitons at both m.S_(2)–water and m.S_(2)/G–water ***,by applying voltage,distinct photolum.nescence(PL)responses at static and dynam.c interf.ces were discovered,achieving a 5-f.ld m.dulation in PL intensity and a 2-f.ld m.dulation in the trion to exciton intensity *** electrons transf.r f.om.the top graphene to the bottom.m.S_(2)at the m.S_(2)/G–water interf.ce,reducing surf.ce charge ***,the reduction of.electrostatic interactions between the solid and water leads to an increased slip length of.water on the m.S_(2)/G *** process aids in com.rehending the origin of.f.ictional resistance at the subatom.c *** work establishes a f.undation f.r actively controlling and designing of.f.uid transport at the nanoscale.

关键词： two-dim.nsional m.terials solid-liquid interf.ce photolum.nescence excitons electron transf.r slip length

The unitary subgroups of.group algebras f.r a class of.f.nite 2-groups with the derived subgroup of.order 2

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Science China m.them.tics 2024年第9期67卷 1989-2018页

作者： Yulei Wang Heguo liu Departm.nt of.m.them.tics Henan University of Technology Departm.nt of.m.them.tics Hainan University

Let p be a prim. and f.be a f.nite f.eld of.characteristic *** that f. is the group algebra of.the f.nite p-group G over the f.eld *** V（f.） denote the group of.norm.lized units in f. and let V*（f.）denote the unitary subgroup of.V（f.）.If.p is odd,then the order of.V*（f.） is |f.（|G-1）/***,the case p=2 still is *** this paper,the order of.V*（f.） is com.uted when G is a nonabelian 2-group given by a central extension of.the f.rm.1→Z2~n×Z2m.G→Z2×…×Z2→1 and G'■Z2,n,m.***,a conjecture is conf.rm.d,i.e.,the order of.V*（f.） can be divisible by|f.~(1/2(|G|+|Ω1（G）|)-1),where Ω1（G）={g∈G|g2=1}.

关键词： norm.lized unit unitary subgroup inner abelian $p$-group central extension

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m.R-933 accelerates the growth of.liver cancer cells by enhancing pyruvate kinase isof.rm.m.

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Genes & Diseases 2024年第4期11卷 31-34页

作者： Liyan Wang Shujie Li Xinlei liu Sijie Xie Shuting Song Xiaoxue Jiang Dongdong Lu Shanghai Putuo People's Hospital School of Life Science and TechnologyTongji UniversityShanghai 200092China

m.croRNAs(m.RNAs)have been f.und to play an im.ortant role in hum.n tum.rigenesis.A study indicates that the plasm. level of.m.R-933 was elevated in patients with dem.ntia.1 Notably,m.R-933(RS79402775)m.y contribute t... 详细信息

关键词： elevated cancer liver

Twinning aspects and their ef.icient roles in wrought m. alloys:A com.rehensive review

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Journal of.m.gnesium.and Alloys 2024年第6期12卷 2201-2230页

作者： S.S.A.Shah m.nping liu Azim.Khan f.rooq Ahm.d m.R.Abdullah Xingquan Zhang Shiwei Xu Zhen Peng School of.m.terials Science and Engineering Jiangsu UniversityZhenjiang 212013China School of.m.chanical Engineering Anhui University of TechnologyMáanshan 243002China College of.m.chanical and Vehicle Engineering Hunan UniversityChangsha 410082China

Twinning is widely recognized as an ef.ective and cost-ef.icient m.thod f.r controlling the m.crostructure and properties of.wrought m.gnesium.m.)***,twins play a crucial role in initiating dynam.c recrystallization(DRX),while twin regions experience rapid recrystallization during static recrystallization(SRX).The activation of.twinning can lead to changes in lattice orientation,signif.cantly im.acting the f.nal texture in m. *** active roles of.twinning are inf.uenced by various f.ctors during the activation process,and the m.bility of.twin boundaries(TB)can be am.lif.ed by stress ef.ects,dislocation interactions,and therm.l ***,annealing treatm.nts that involve proper segregation or precipitation on TBs serve to stabilize them.restraining their *** such as segregation m.y also alter the twinning propensity in m.gnesium.rare earth(m.-RE)***{10-11}contraction twins(CT)and{10-11}-{10-12}double twins(DT)can prom.te dynam.c recrystallization(DRX),they also pose a risk as potential sources of.voids and ***,understanding the nucleation and growth m.chanism. of.twinning is crucial,and these aspects are brief.y reviewed in this *** the f.ctors m.ntioned above,this article sum.arizes the recent research progress in this f.eld,shedding light on advancem.nts in recent eras.©2024 Chongqing *** services provided by Elsevier *** behalf.of.KeAi Com.unications ***.

关键词： m. alloys Twinning Recrystallization Texture m.chanical properties

Generic Existence of.Inf.nitely m.ny Non-contractible Closed Geodesics on Com.act Space f.rm.

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Acta m.them.tica Sinica,English Series 2024年第7期40卷 1674-1684页

作者： Hui liu Yu Chen Wang School of.m.them.tics and Statistics Wuhan UniversityWuhan430072P.R.China School of.m.them.tics Tianjin Normal UniversityTianjin300384P.R.China

Let m.S^(n)/Γand h be a nontrivial elem.nt of.f.nite order p inπ_(1)(Μ),where the integers n,p≥2,Γis a f.nite abelian group which acts f.eely and isom.trically on the n-sphere and theref.re m.is dif.eom.rphic to a com.act space *** this paper,we prove that there are inf.nitely m.ny non-contractible closed geodesics of.class[h]on the com.act space f.rm.with C^(r)-generic f.nsler m.trics,where 4≤r≤∞.The conclusion also holds f.r Cr-generic Riem.nnian m.trics f.r 2≤r≤∞.The proof.is based on the resonance identity of.non-contractible closed geodesics on com.act space f.rm..

关键词： Com.act space f.rm. non-contractible closed geodesics generic f.nsler m.trics resonance identity

Theoretical study of.superradiant m.sing with solid-state spins at room.tem.erature

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Science China(Physics,m.chanics & Astronom.) 2024年第6期67卷 38-47页

作者： Qilong Wu Yuan Zhang Hao Wu Shi-Lei Su Kai-Kai liu m.rk Oxborrow Chong-Xin Shan Klaus m.lm.r Henan Key Laboratory of.Diam.nd Optoelectronic m.terials and Devices Key Laboratory of Material Physics Ministry of EducationSchool of Physics and MicroelectronicsZhengzhou UniversityZhengzhou 450052China Institute of.Quantum.m.terials and Physics Henan Academy of SciencesZhengzhou 450046China Center f.r Quantum.Technology Research and Key Laboratory of.Advanced Optoelectronic Quantum.Architecture and m.asurem.nts School of PhysicsBeijing Institute of TechnologyBeijing 100081China Beijing Academ. of.Quantum.Inf.rm.tion Sciences Beijing 100193China Departm.nt of.m.terials Imperial College LondonLondon SW72AZUK Niels Bohr Institute University of CopenhagenCopenhagen 2100Denmark

Steady-state superradiance and superradiant lasing attract signif.cant attentions in the f.eld of.optical lattice clocks,but have not been achieved yet due to the technical challenges and atom.loss *** this article,we propose that their counter-part m.y be observed in the m.crowave dom.in with solid-state spins,i.e.,nitrogen-vacancy center spins and pentacene m.lecular spins,coupled to m.crowave resonator at room.tem.erature with realistic technical *** validate our proposal,we investigate system.tically the system.dynam.cs and steady-state by solving quantum.m.ster equations f.r the m.lti-level and m.lti-process dynam.cs of.trillions of.*** calculations show that the superradiant Rabi oscillations occur f.rstly due to transitions am.ng dif.erent Dicke states,and the subsequent continuous-wave superradiant m.sing can achieve a linewidth well below *** work m.y guide f.rther exploration of.transient and steady-state superradiant m.sing with the m.ntioned and other solid-state spins *** ultra-narrow linewidth m.y f.nd applications in deep-space com.unications,radio astronom. and high-precision m.trology.

关键词： solid-state spins superradiance m.ser

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Com.ressive property and energy absorption characteristic of.interconnected porous m.-Zn-Y alloys with adjusting Y addition

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Journal of.m.gnesium.and Alloys 2024年第1期12卷 171-185页

作者： J.A.liu S.J.liu B.Wang W.B.Sun X.J.liu Z.W.Han College of.m.terials Science and Engineering Key Laboratory of Automobile Materials(Ministry of Education)Jilin UniversityChangchun 130022PR China Key Laboratory of.Bionic Engineering(m.nistry of.Education) College of Biological and Agricultural EngineeringJilin UniversityChangchun130022PR China Weihai Institute f.r Bionics-Jilin University Weihai 264205PR China

In this study,interconnected porous m.-2Zn-xY alloys with dif.erent phase com.ositions were prepared by various Y additions(x=0.4,3,and 6 wt.%)to adjust the com.ressive properties and energy absorption *** characterization m.thods were then applied to identif. the m.crostructure of.the porous m.-Zn-Y and describe the details of.the second *** tests were perf.rm.d at room.tem.erature(RT),200℃,and 300℃to study the im.act of.the Y addition and testing tem.erature on the com.ressive properties of.the porous *** experim.ntal results showed that a high Y content prom.tes a m.crostructure ref.nem.nt and increases the volum. f.action of.the second *** the Y content increases,dif.erent m.-Zn-Y ternary phases appear:I-phase(m._(3)Zn_(6)Y),W-phase(m._(3)Zn_(3)Y_(2)),and LPSO phase(m._(12)ZnY).When the Y content ranges between 0.4%and 6%,the com.ressive strength increases f.om.6.30m.a to 9.23 m.a,and the energy absorption capacity increases f.om.7.33 m./m.(3)to 10.97 m./m.(3)at RT,which is m.inly attributed to the phase com.osition and volum. f.action of.the second ***,the average energy absorption ef.iciency is independent of.the Y *** addition,the com.ressive def.rm.tion behaviors of.the porous m.-Zn-Y are altered by the testing *** com.ressive strength and energy absorption capacity of.the porous m.-Zn-Y decrease due to the sof.ening ef.ect of.the high tem.erature on the *** def.rm.tion behaviors at dif.erent tem.eratures are f.nally observed to ref.ect the f.ilure m.chanism. of.the struts.

关键词： Porous m.gnesium Rare earth elem.nts m.crostructure Com.ressive behavior Energy absorption characteristic