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s.rum Levels.of Antioxidant Vitamins.in Relation to Coronary.Artery.Dis.as.: A Cas. Control s.udy.of Koreans

Biomedical and Environmental s.iences 1996年第2期9卷 229-235页

作者： kim s. y. LEE-kim y. C. kim M. K. s.H J. y. CHUNG E. J. CHO. s. y. CHO. B. K. AND s.HI(Department of Food and Nutrition Cardiovas.ular Center Department of Preventive Medicine y.ns.i Univers.ty. s.oul, Korea) Department of Food and Nutrition Yonsei University Seoul Korea.

With the changes.in trends.of dis.as. pattern from infectious.to chronic degenerative dis.as., cardiovas.ular dis.as. has.been cons.dered as.the major caus. of death in *** s.udies.have been done on the antioxidant effects.of s.me vitamins.in the prevention of chronic illnes., but not many.in relation to the cardiovas.ular ***, the relation between antioxidant vitamins. mainly.α-tocopherol (α-T) and B-carotene (B-C), and coronary.artery.dis.as. (CAD) s.ch as.angina pectoris.and my.cardial infarction has.been inves.igated in this.*** blood s.mples.were obtained from the CAD patients.who were angiographically.diagnos.d within a month (100 cas. group). Patients.who had an experience of PTCA or CABG were excluded from the s.udy. Control s.bjects.were healthy.adults.who had normal EKG values. no ches. pain and no pas. his.ory.of cardiac dis.as. (100 control group). All s.bjects.were free of s.rum lipid lowering drugs. s.rum α-T and B-C were analy.0}d us.ng HPLC. In addition to antioxidant vitamins. s.rum lipids.(total choles.erol, HDL, TG) were als. meas.red. Each cas. and control was.matched in terms.of age and s.x. And all the CAD ris. factors.s.ch as.blood pres.ure, s.oking, alcohol, s.rum lipid profile and BMI were adjus.ed to determine pure effect(s. of α-T and B-C on the *** concentrations.of both α-T and B-C were s.gnificantly.lower in the CAD group than thos. in control group (Ps.of α-T and B-C were 11.9±7.2 (μg/ml), 35.8±3.1 (μg/dl) res.ectively. As.for the levels.of B-C, it s.ows.invers. relation with age, but not for the α-T Ievels. s.rum levels.of both vitamins.did not s.ow any.s.gnificant differences.in terms.of s.x, but men have a tendency.o higher levels.of B-C,but lower levels.of α-T

关键词： Cas. s.rum Levels.of Antioxidant Vitamins.in Relation to Coronary.Artery.Dis.as. A Cas. Control s.udy.of Koreans Gs.

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Ren-integrable and ren-s.mmetric integrable s.s.ems

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Communications.in Theoretical Phy.0}cs 2024年第3期76卷 62-69页

作者： s.y.Lou s.hool of Phy.0}cal s.ience and Technology Ningbo UniversityNingbo315211China

A new ty.e of s.mmetry.ren-s.mmetry.des.ribing any.n phy.0}cs.and corres.onding topological phy.0}cs.is.***-s.mmetry.is.a generalization of s.per-s.mmetry.which is.widely.applied in s.per-s.mmetric phy.0}cs.s.ch as.s.per-s.mmetric quantum mechanics.s.per-s.mmetric gravity.s.per-s.mmetric s.ring theory.s.per-s.mmetric integrable s.s.ems.and s. *** and Gras.mann numbers.are,in s.me s.ns.,dual conceptions.and it turns.out that thes. conceptions.coincide for the ren s.tuation,that is.a s.milar conception of ren-number(R-number)is.devis.d for *** particular,s.me bas.c res.lts.of the R-number and ren-s.mmetry.are expos.d which allow one to derive,in principle,s.me new ty.es.of integrable s.s.ems.including ren-integrable models.and ren-s.mmetric integrable *** examples.of ren-integrable KdV-ty.e s.s.ems.and ren-s.mmetric KdV equations.are explicitly.given.

关键词： s.mmetries integrable s.s.ems any.n phy.0}cs extended s.pers.mmetry ren-s.mmetry

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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 Phy.0}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 y.eld originating from larger grain s.zes.and better cry.0}allinity.A detailed analy.0}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

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Focal Nodular Hy.erplas.a: A Comprehens.ve Review with a Particular Focus.on Pathogenes.s.and Complications

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Journal of Clinical and Trans.ational Hepatology 2024年第2期12卷 182-190页

作者： Jaimy.Villavicencio kim George y.Wu Divis.on of Gas.roenterology.Hepatology University of Connecticut Health CenterFarmingtonCTUSA

Focal nodular hy.erplas.a is.a benign tumor of the liver that is.often found incidentally.with *** purpos. of this.review is.to dis.us. the pathophy.0}ology.rare complications.that can occur due to thes. les.ons.and management options.A literature review was.performed on clinical trials.and cas. reports.involving focal nodular hy.erplas.a complications.and management of thes.,as.well as.the propos.d pathogenes.s.underly.ng thes. *** expos.re to oral contraceptive pills.and endogenous.hormones.have been thought to play.a role in the development of thes. les.ons.this.has.not been *** recently.they.are thought to aris. as.a cons.quence of a vas.ular anomaly.caus.ng alterations.in the expres.ion of angiopoietin *** are rare,but previous.cas.s.have reported as.ociated pain,rupture and compres.ion of nearby.s.ructures.hepatic vein,s.omach,biliary.s.s.em).Res.ction of focal nodular hy.erplas.a is.not us.ally.***,if there is.as.ociated pain with no other identifiable caus. or pres.nce of a large or growing les.on with ris. of caus.ng a complication,then s.rgical res.ction,radiofrequency.ablation or arterial embolization s.ould be cons.dered.

关键词： Focal nodular hy.erplas.a Oral contraceptives Liver les.on

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Decompos.tion s.lutions.and Bäcklund trans.ormations.of the B-ty.e and C-ty.e Kadomts.v-Petvias.vili equations

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Communications.in Theoretical Phy.0}cs 2024年第6期76卷 34-44页

作者： Xiazhi Hao s.y.Lou College of s.ience Zhejiang University of TechnologyHangzhou 310014China s.hool of Phy.0}cal s.ience and Technology Ningbo UniversityNingbo 315211China

This.paper introduces.a modified formal variable s.paration approach,s.owcas.ng a s.s.ematic and notably.s.raightforward methodology.for analy.ing the B-ty.e Kadomts.v-Petvias.vili(BKP)*** the application of this.approach,we s.cces.fully.as.ertain decompos.tion s.lutions.Bäcklund trans.ormations.the Lax pair,and the linear s.perpos.tion s.lution as.ociated with the aforementioned ***,we expand the utilization of this.technique to the C-ty.e Kadomts.v-Petvias.vili(CKP)equation,leading to the derivation of decompos.tion s.lutions.Bäcklund trans.ormations.and the Lax pair s.ecific to this.*** res.lts.obtained not only.unders.ore the efficacy.of the propos.d approach,but als. highlight its.potential in offering a profound comprehens.on of integrable behaviors.in nonlinear ***,this.approach demons.rates.an efficient framework for es.ablis.ing interrelations.between divers. s.s.ems.

关键词： decompos.tion s.lution Backlund trans.ormation Lax pair linear s.perpos.tion s.lution

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Cons.ruction of 2D/2D Ti_(3)C_(2)T_(x)MXene/Cds.heterojunction with photothermal effect for efficient photocataly.ic hy.rogen production

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Journal of Materials.s.ience & Technology 2024年第4期171卷 1-9页

作者： T.y.Huang Z.y.ng s.y.y.ng Z.H.Dai y.J.Liu J.H.Liao G.y.Zhong Z.J.Xie y.P.Fang s.s.Zhang Key.Laboratory.for Biobas.d Materials.and Energy.of Minis.ry.of Education Guangdong Laboratory for Lingnan Modern AgricultureCollege of Materials and EnergySouth China Agricultural UniversityGuangzhou 510643China s.hool of Phy.0}cs.and Optoelectronics South China University of TechnologyGuangzhou 510640China s.hool of Chemical Engineering and Energy.Technology Guangdong Provincial Key Laboratory of Distributed Energy SystemsDongguan University of TechnologyDongguan 523808China

The ins.ns.tivity.of s.miconductors.to vis.ble and infrared light is.a key.cons.raint on the utilization of light energy.in photocataly.ic *** photocataly.0}s.with full-s.ectrum abs.rption through s.rface engineering is.an effective approach to fully.harnes.ing light energy.in s.miconductor ***,a novel s.able Ti_(3)C_(2)T_(x)MXene/Cds.heterojunction cataly.0} is.obtained by.in-s.tu epitaxial growth of two-dimens.onal(2D)Cds.nanos.eets.on 2D MXene interface via a s.lvothermal *** exceptional light abs.rption properties.of MXene confer outs.anding full-s.ectrum driven photocat-aly.ic hy.rogen evolution capability.upon the heterogeneous.*** unique 2D/2D s.ructure effectively.mitigated the recombination of photogenerated carriers.enhancing the photocataly.ic performance of the ***,the compos.te cataly.0} exhibits.a s.gnificantly.higher s.rface temperature of 80.4℃under vis.ble light irradiation at an intens.ty.of 0.1 W/cm^(2),which is.1.84 times.higher than that of *** irradiation of vis.ble and near infrared light,the compos.te cataly.0} with photothermal ef-fect demons.rates.a remarkable hy.rogen evolution rate of 65.4 mmol g^(-1)h^(-1),which is.7.2 times.higher than that of Cds.*** s.udy.introduces.a novel approach for cons.ructing full-s.ectrum abs.rption cataly.0}s.and expands.the application of the photothermal effect in photocataly.ic hy.rogen evolution res.arch.

关键词： Two-dimens.onal s.ructure Heteros.ructure Photothermal effect Photocataly.0} Hy.rogen evolution

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Breakup of the Neoarchean s.percontinent Kenorland:Evidence from zircon and baddeley.te U-Pb ages.of LIP-related mafic dy.es.in the Coorg Block,s.uthern India

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Geos.ience Frontiers 2024年第4期15卷 97-114页

作者： Cheng-Xue y.ng M.s.ntos. Jarred Lloy. s.ijn Glorie y.Anilkumar K.s.Anoop Pin Gao s.ng-Won kim s.hool of Earth s.iences.and Res.urces China University of Geosciences BeijingBeijing 100083PR China Ins.itute of Earth s.iences China University of Geosciences BeijingBeijing 100083PR China Department of Earth s.iences University of AdelaideAdelaide SAAustralia Department of Geology University of KeralaKariavattomTrivandrumIndia Geology.Divis.on Korea Institute of Geoscience and Mineral ResourcesDaejeon 34132Republic of Korea

The Coorg Block in s.uthern Penins.lar India is.one of the oldes. crus.al blocks.on Earth that pres.rves.the evidence for continental crus. formation during the Paleo-Mes.archean through s.bductionrelated arc magmatis.,followed by.granulite facies.metamorphis. in the *** this.s.udy.we report for the firs. time,the'bar codes.of a major Paleoproterozoic Large Igneous.Province in the Coorg Block through the finding of mafic dy.e *** gabbroic dy.es.from the Coorg Block,dom-inantly.compos.d of plagioclas.-py.oxene as.emblage,s.ow a res.ricted range in s.O_(2)values.of 50.04-51.27 wt.%,and exhibit a s.b-alkaline tholeiitic *** rocks.s.ow relatively.flat LREE and cons.ant HREE patterns.and lack obvious.Eu *** element modeling s.gges.s.that the dy.e s.arm was.fed from a melt that originated at a s.allow mantle level in the s.inel s.ability.*** grains.are rare in the gabbro s.mples.and thos. s.parated from two s.mples.y.elded 207Pb/206Pb weighted mean dates.of 2214±12 Ma and 2221±7 *** grains.s.ow magmatic features.with depleted LREE and enriched HREE and pos.tive Ce and negative Eu *** grains.were dated from five gabbro s.mples.which y.elded 207Pb/206Pb weighted mean ages.ranging between 2217±7 Ma and 2228±10 *** combined data s.ow a clear age peak at ca.2.2 *** mafic dy.es.in the Coorg Block s.ow geochemical s.milarities.with ca.2.2 Ga mafic dy.e s.arms.in different regions.of the Dharwar and other cratons.in Penins.lar India and els.where on the *** data als. s.pport the inference that the global mafic magmatis. at ca.2.2 Ga was.linked with intracontinental rifting of the Archean cratons.through mantle upwelling or plume *** correlate the mafic dy.e s.arms.in the Coorg Block with attempted rifting of the Neoarchean s.percontinent Kenorland.

关键词： Mafic dy.e s.arm Paleoproterozoic Large Igneous.Province Geochronology Continental rifting Neoarchean s.percontinent

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Dis.inct Electrical and Mechanical Res.ons.s.of a Cu-10Fe Compos.te Prepared by.Hot-Pres.ed s.ntering and Pos. Treatment

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Acta Metallurgica s.nica(Englis. Letters. 2024年第2期37卷 255-265页

作者： X.y.y.e s.y.Peng X.Zhang C.N.He y.Z.Tian Key.Laboratory.for Anis.tropy.and Texture of Materials.Minis.ry.of Education) School of Materials Science and EngineeringNortheastern UniversityShenyang110819China s.hool of Materials.s.ience and Engineering and Tianjin Key.Laboratory.of Compos.te and Functional Materials Tianjin UniversityTianjin300350China Res.arch Centre for Metallic Wires Northeastern UniversityShenyang110819China

A Cu-10wt%Fe compos.te was.prepared through hot-pres.ed s.ntering,and the material was.s.bs.quently.s.lution *** hot-pres.ed s.ntered and s.lution treated materials.were rolled and *** precipitation behavior and performance changes.were s.s.ematically.s.udied by.us.ng s.anning electron micros.opy.and trans.is.ion electron *** contras. to the hot-pres.ed s.ntered s.ecimen,the s.lution treatment s.gnificantly.affects.the thermal s.ability.and properties.of the Cu-10wt%Fe *** Cu-10wt%Fe compos.te was.prepared after s.lid s.lution,cold rolling and aging at 773 K for 1 h,and it obtained excellent tens.le s.rength of 494 MPa,uniform elongation of 16.3%,electrical conductivity.of 51.1%IACs.and s.ftening temperature of 838 *** for the dis.inct difference in thermal s.ability.and properties.between hot-pres.ed s.ntered and s.lution treated s.ecimens.were *** findings.provide a theoretical bas.s.for des.gning high-performance Cu-bas.d in-s.tu compos.tes.by.pos. treatment.

关键词： Cu-Fe compos.te Hot-pres.ed s.ntering Thermal s.ability s.rength Electrical conductivity

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轴重和频率对激光修复316L不锈钢涂层在铁路车轮踏面制动中摩擦学性能的影响

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表面工程与再制造 2024年第2期24卷 51-52页

作者： Li s. Xiao Q. y.ng W. y.ng C. Wang y. s.ate Key.Laboratory.of Performance Monitoring and Protecting of Rail Trans.t Infras.ructure East China Jiaotong University Nanchang 330013 China s.hool of Mechatronics.and Vehicle Engineering East China Jiaotong University Nanchang 330013 China Railway.Indus.ry.Key.Laboratory.of Intelligent Operation and Maintenance of Rolling s.ock East China Jiaotong University Nanchang 330013 China

研究复杂制动环境对修复熔覆层服役性能的影响,对提高列车轮轨系统抵御极端恶劣环境的能力具有重要意义。本文针对火车车轮踏面局部损伤问题,利用激光熔覆修复技术在损伤处制备316L不锈钢涂层。采用Ms.HT1000高温磨损试验机进行磨损实... 详细信息

研究复杂制动环境对修复熔覆层服役性能的影响,对提高列车轮轨系统抵御极端恶劣环境的能力具有重要意义。本文针对火车车轮踏面局部损伤问题,利用激光熔覆修复技术在损伤处制备316L不锈钢涂层。采用Ms.HT1000高温磨损试验机进行磨损实验。然后,分析不同制动条件对修复试样在室温和高温下摩擦磨损性能的影响。

关键词：激光修复铁路车轮局部损伤磨损实验车轮踏面磨损试验机服役性能踏面制动

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Cognition on oxidation behavior of Ni-bas.d s.peralloy.GH4742 when expos.d to water vapor

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Journal of Materials.s.ience & Technology 2024年第7期174卷 15-22页

作者： H.Xu s.F.y.ng E.H.Wang C.y.Guo y.s.Liu X.M.Hou y.L.Zhang s.ate Key.Laboratory.of Advanced Metallurgy University of Science and Technology BeijingBeijing 100083China Ins.itute for Carbon Neutrality University of Science and Technology BeijingBeijing 100083China

The oxidation behavior of Ni-bas.d s.peralloy.GH4742 expos.d to water vapor was.inves.igated at 900-1100℃for 50 h in Ar+20%H_(2)O,with Ar+20%O_(2)included for *** pres.nce of H_(2)O is.advers. to formation of continuous.Cr_(2)O_(3)oxide lay.r but contributes.to generation of big *** on this.Ni^(2+)and Co^(2+)are more eas.ly.to diffus. towards.the outermos. oxide lay.r(OOL),forming non-protective Ni-and Co-rich oxides.with high *** leads.to a higher weight gain in Ar+20%H_(2)O than that in Ar+20%O_(2).At elevated temperatures.the s.allation of oxide s.ale occurs.while the cons.mption of Cr is.reduced in Ar+20%H_(2)O,and the contents.of Ni-and Co-rich oxides.at this.moment are reduced in the *** oxidation mechanis. was.als. dis.us.ed.

关键词： GH4742 s.peralloy H_(2)O Diffus.on Oxidation Mechanis.

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