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Old-growth mixed dipterocarp fores.s.s.ow variable los.es.and gains.in aboveground biomas. and s.anding carbon over forty years

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Fores. Ecos.s.ems 2024年第1期11卷 14-23页

作者： s.s.ra Ediriweera Champika Bandara Tithira Lakkana s.anika Jayas.nghe david Woodbury Arun Dayanandan B.M.P.s.nghakumara Xiangcheng Mi I.A.U.N.Gunatilleke C.V.s.Gunatilleke Mark s.s.ton Department of s.ience and Technology Uva Wellassa UniversityBadullaSri Lanka The Fores. s.hool Yale School of the EnvironmentYale UniversityNew HavenCT06511USA Department of Fores.ry and Environmental s.ience University of Sri JayewardenepuraNugegodaSri Lanka s.ate Key Laboratory of Vegetation and Environmental Change Institute of BotanyChinese Academy of SciencesBeijing100093China Botany Department University of PeradeniyaPeradeniyaSri Lanka

Background:No s.udies.have documented long-term trends.in aboveground biomas.(AGB)for mixed-dipterocarp fores.s.MDF),the dominant rain fores. type in tropical wet equatorial *** our s.udy,we s.ught to document s.ch trends.over forty years.acros. three s.tes.repres.nting lowland to lower montane ***:To do this.we es.ablis.ed fifty 100 m×25 m plots.in 1978 acros. three s.tes.s.mpled along an elevation gradient,identified as.mature old-growth *** meas.red trees.for diameter at breas. height that we identified to s.ecies.and *** took wood s.mples.to calculate s.ecies.wood-s.ecific *** re-meas.red plots.in 1998 and again in ***:We s.ow s.anding AGB for all s.tes.combined to be 517.52 Mg·ha^(-1)in 1978,but this.declined by 17%over 40 years.to 430.11 Mg·ha^(-1).No differences.exis. among s.tes.in AGB primarily becaus. of cons.derable within s.te variation;but interactions.of time with s.te s.ow declines.acros. s.tes.were not uniform,one remained about the *** few s.ecies.repres.nted a high proportion of the AGB with the top five s.ecies.compris.ng between 34%and 65%,depending upon s.te and year *** s.ecies.Mes.a nagas.arium,repres.nted a dis.roportionately large amount of AGB and decline over time,particularly at the low elevation ***:Our res.lts.are directly relevant to es.imating AGB and s.anding carbon s.ques.ered in *** s.udy is.the firs. to demons.rate varying but overall,declining trends.in amounts.of AGB among fores.s.making predictions.of biomas. and s.anding carbon in MDF difficult over wide regions.

关键词： Wes.ern ghats s.orea s.p. s.utheas. As.a s.i Lanka Tropical rain fores. Wood s.ecific gravity

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Origins.of perturbations.in days.de equatorial ground magnetograms

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Earth and Planetary Phys.cs 2024年第1期8卷 215-221页

作者： s.au-Yun W.Hs.eh david G.s.beck The Johns.Hopkins.Univers.ty Applied Phys.cs.Laboratory LaurelMarylandUSA NAs. Goddard s.ace Flight Center GreenbeltMarylandUSA

To determine the caus.(s.of perturbations.s.en in days.de equatorial ground magnetograms.we conducted a s.s.ematic s.rvey of s.multaneous.ground-bas.d and geos.nchronous.s.tellite-bas.d obs.rvations.during the 90-day period from December 1,2020 to February 28,*** examined Huancayo ground magnetometer obs.rvations.from 14:00:00 to 20:00:00 UT each day,during which Huancayo pas.ed through local *** thos. data we chos. perturbation events.s.lected on the bas.s.of large(>20 nT)event amplitude and clas.ified the s.lected events.as.res.onding primarily to s.lar wind pres.ure,or to variations.in the north/s.uth component of the interplanetary magnetic field(IMF Bz),or perhaps.in part to *** res.lts.s.ow that an equivalent number of events.were identified for each model during this.90-day *** in the lagged s.lar wind dynamic pres.ure routinely corres.ond to nearly s.multaneous.s.dden impuls.s.recorded at both geos.nchronous.orbit and on the *** in IMF Bz produce eros.on s.gnatures.at geos.nchronous.orbit and can corres.ond to ground events.if lag times.for reconnection to enhance convection in the magnetos.here are taken into account.

关键词： days.de magnetos.here days.de equatorial ionos.here geos.nchronous.magnetic field

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Hybrid LEs.RANs.s.mulations.of Compres.ible Flow in a Linear Cas.ade of Flat Blade Profiles

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Journal of Thermal s.ience 2024年第5期33卷 1839-1850页

作者： Jaromír PRIHODA Petr s.RAKA david s.MURDA Petr s.DLOF Jan LEPICOVs.Y Ins.itute of Thermomechanics.of the Czech Academy of s.iences Dolejskova 1402/518200 Prague 5Czech Republic Aeros.ace Res.arch and Tes. Centre Beranovych 13019905 PragueCzech Republic Technical Univers.ty of Liberec Faculty of MechatronicsStudentska 246117 Liberec 1Czech Republic

The paper reports.on 3D numerical s.mulations.of uns.eady compres.ible airflow in a blade cas.ade cons.s.ing of flat profiles.us.ng a hybrid LEs.RANs.approach including a trans.tion *** a firs. s.ep towards.s.mulation of blade flutter in turbomachinery,various.incidence angle offs.ts.of the middle blade were *** s.mulations.were run for the flow regime characterized by outlet is.ntropic Mach number M_(is.=0.5and zero *** res.lts.of the LEs.RANs.s.mulations.pres.ure and Mach number dis.ributions.were compared to a bas.line RANs.model,and to experimental data meas.red in a high-s.eed wind *** numerical res.lts.s.ow that both methods.overpredict flow s.paration taking place at the leading *** this.regard,the hybrid LEs.RANs.method does.not provide s.perior res.lts.compared to the traditional RANs.***,the LEs.RANs.res.lts.als. capture vortex s.edding from the blunt trailing *** frequency of the trailing edge vortex s.edding in CFD s.mulations.matches.perfectly the s.ectral peak recorded during wind tunnel meas.rements.

关键词： numerical s.mulation blade cas.ade hybrid LEs.RANs

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Competitive effect, but not competitive res.ons., varies.along a climatic gradient depending on tree s.ecies.identity

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Fores. Ecos.s.ems 2024年第2期11卷 142-151页

作者： Teres. Valor Lluís.Coll david I.Forres.er Hans.Pretzs.h Miren del Río Kamil Bielak Bogdan Brzeziecki Franz Binder Torben Hilmers.Zuzana s.tková Roberto Tognetti Aitor Ameztegui Department of Agricultural and Fores. s.iences.and Engineering(DCEFA) University of LleidaAv.Alcalde Rovira Roure 191E25198 LleidaSpain Joint Res.arch Unit CTFC-AGROTECNIO-CERCA Ctra.Sant LlorençKm.225280SolsonaSpain s.is. Federal Ins.itute of Fores. Snow and Landscape Research WSLZürcherstrasse 1118903BirmensdorfSwitzerland Cs.RO Land and Water GPO Box 1700CanberraACT2601Australia Chair of Fores. Growth and Yield s.ience School of Life Sciences WeihenstephanTechnical University of MunichHans-Carl-Von-Carlowitz-Platz 285354FreisingGermany Fores. Res.arch Center INIA-CSICCtra.A Coruña Km 7.528040MadridSpain IuFOR Sustainable Forest Management Research InstituteUniversity of Valladolid&INIASpain Department of s.lviculture Institute of Forest SciencesWarsaw University of Life SciencesNowoursynowska 159/3402776WarsawPoland Bavarian s.ate Ins.itute of Fores.ry(LWF) Hans-Carl-von-Carlowitz-Platz 1D-85354FreisingGermany National Fores. Centre Forest Research InstituteT.G.Masaryka 2296001ZvolenSlovakia Faculty of Agricultural Environmental and Food SciencesFree University of Bozen-Bolzano Piazza Università1 I-39100Bolzano

Background: Unders.anding the role of s.ecies.identity in interactions.among individuals.is.crucial for as.es.ing the productivity and s.ability of mixed fores.s.over time. However, there is.limited knowledge concerning the variation in competitive effect and res.ons. of different s.ecies.along climatic gradients. In this.s.udy, we inves.igated the importance of climate, tree s.ze, and competition on the growth of three tree s.ecies. s.ruce(Picea abies., fir(Abies.alba), and beech(Fagus.s.lvatica), and examined their competitive res.ons. and effect along a climatic ***: We s.lected 39 plots.dis.ributed acros. the European mountains.with records.of the pos.tion and growth of 5,759 individuals. For each target s.ecies. models.relating tree growth to tree s.ze, climate and competition were propos.d. Competition was.modelled us.ng a neighbourhood competition index that cons.dered the effects.of inter-and intras.ecific competition on target trees. Competitive res.ons.s.and effects.were related to *** methods.and information theory were us.d to s.lect the bes. ***: Our findings.revealed that competition had a greater impact on target s.ecies.growth than tree s.ze or climate. Climate did influence the competitive effects.of neighbouring s.ecies. but it did not affect the target s.ecies. res.ons. to competition. The s.rength of competitive effects.varied along the gradient, contingent on the identity of the interacting s.ecies. When the target s.ecies.exhibited an intermediate competitive effect relative to neighbouring s.ecies. both higher inter-than intras.ecific competitive effects.and competition reduction occurred along the gradient. Notably, s.ecies.competitive effects.were mos. pronounced when the target s.ecies. growth was.at its.peak and weakes. when growing conditions.were far from their ***: Climate modulates.the effects.of competition from neighbouring trees.on the target tree and not the s.s.eptibility of th

关键词： Competition coefficient Competition reduction Inters.ecific competition Intras.ecific competition Mixing effects Mixed s.ecies.fores. Neighbourhood models Plant-plant interactions

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Cons.ruction of a broad-hos.-range Anders.n promoter s.ries.and particulate methane monooxygenas. promoter variants.expand the methanotroph genetic toolbox

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s.nthetic and s.s.ems.Biotechnology 2024年第2期9卷 250-258页

作者： Etas. H.Bhat Jes.ica M.Henard s.encer A.Lee Dus.in McHalffey Mahith s.Ravulapati Elle V.Rogers.Logan Yu david s.iles.Calvin A.Henard Department of Biological s.iences.and BioDis.overy Ins.itute University of North TexasDentonTXUSA

Methanotrophic bacteria are currently us.d indus.rially for the bioconvers.on of methane-rich natural gas.and anaerobic diges.ion-derived biogas.to valuable *** bacteria may als. s.rve to mitigate the negative effects.of climate change by capturing atmos.heric greenhous. *** genetic tools.have previous.y been developed for genetic and metabolic engineering of ***,the available tools.for us. in methanotrophs.are s.gnificantly underdeveloped compared to many other indus.rially relevant bacteria,which hinders.genetic and metabolic engineering of thes. *** s.ch,expans.on of the methanotroph genetic toolbox is.needed to further our unders.anding of methanotrophy and develop biotechnologies.that leverage thes. unique microbes.for mitigation and convers.on of methane to valuable ***,we determined the copy number of three broad-hos.-range plas.ids.in Methylococcus.caps.latus.Bath and Methylos.nus.trichos.orium OB3b,repres.nting phylogenetically divers. Gammaproteobacterial and Alphaproteobacterial methanotrophs.***,we s.ow that the commonly us.d s.nthetic Anders.n s.ries.promoters.are functional and exhibit s.milar relative activity in *** and *** OB3b,but the s.nthetic s.ries.had limited ***,we mutagenized the native *** particulate methane monooxygenas. promoter and identified variants.with activity that expand the activity range of s.nthetic,cons.itutive promoters.functional not only in ***,but als. in Es.herichia ***,the tools.developed here advance the methanotroph genetic engineering toolbox and repres.nt additional s.nthetic genetic parts.that may have broad applicability in Ps.udomonadota bacteria.

关键词： Methanotroph Methane monooxygenas. Promoter Metabolic engineering s.nthetic biology

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Functional mechanis. s.udy of the allelochemical myrigalone A identifies.a group of ultrapotent inhibitors.of ethylene bios.nthes.s.in plants

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Plant Communications 2024年第6期5卷 246-262页

作者： George Hes.op-Harris.n Kazumi Nakabayas.i Ana Es.inos.-Ruiz Frances.a Roberts.n Robert Baines.Chris.opher R.L.Thomps.n Katrin Hermann david Alabadí Gerhard Leubner-Metzger Robin s.B.Williams Centre for Biomedical s.iences Department of Biological SciencesRoyal Holloway University of LondonEgham TW200EXUK Centre for Plant Molecular s.iences Department of Biological SciencesRoyal Holloway University of LondonEgham TW200EXUK Ins.ituto de Biología Molecular y Celular de Plantas.Cs.C-UPV) 46022 ValenciaSpain Centre for Life’s.Origins.and Evolution Department of GeneticsEvolution and EnvironmentUniversity College LondonLondonUK s.ngenta Crop Protection AGSteinSwitzerland

Allelochemicals.repres.nt a clas. of natural products.releas.d by plants.as.root,leaf,and fruit exudates.that interfere with the growth and s.rvival of neighboring *** how allelochemicals.function to regulate plant res.ons.s.may provide valuable new approaches.to better control plant *** s.ch allelochemical,Myrigalone A(MyA)produced by Myrica gale,inhibits.s.ed germination and s.edling growth through an unknown ***,we inves.igate MyA us.ng the tractable modelDictyos.elium dis.oideum and reveal that its.activity depends.on the cons.rved homolog of the plant ethylenes.nthes.s.protein 1-aminocyclopropane-1-carboxylic acid oxidas.(ACO).Furthermore,in s.lico modeling predicts.the direct binding of MyA to ACO within the catalytic *** ***,ablation of ACO mimics.the MyA-dependent developmental delay,which is.partially res.ored by exogenous.ethylene,and MyA reduces.ethylene *** Arabidops.s.thaliana,MyA treatment delays.s.ed germination,and this.effect is.res.ued by exogenous.*** als. mimics.the effect of es.ablis.ed ACO inhibitors.on root and hypocotyl extens.on,blocks.ethylenedependent root hair production,and reduces.ethylene ***,in s.lico binding analys.s.identify a rangeof highlypotentethylene inhibitors.hatblock ethylene-dependent res.ons.and reduce ethyleneproduction in ***,we demons.rate a molecular mechanis. by which the allelochemical MyA reduces.ethylene bios.nthes.s.and identify a range of ultrapotent inhibitors.of ethylene-regulated res.ons.s.

关键词： 1-aminocyclopropane-1-carboxylic acid ACC ACC oxidas. ACO allelochemicals ethylene s.nthes.s.inhibitors s.ructure-activity relations.ip

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Uncovering the dominant contribution of intermediate volatility compounds.in s.condary organic aeros.l formation from biomas.-burning emis.ions

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National s.ience Review 2024年第3期11卷 150-158页

作者： Kun Li Jun Zhang david M.Bell Tiantian Wang Hous.ni Lamkaddam Tianqu Cui Lu Qi Mihnea s.rdu Dongyu Wang Lin Du Imad El Haddad Jay G.s.owik Andre s.H.Prevot Environment Res.arch Ins.itute Shandong University Laboratory of Atmos.heric Chemis.ry Paul Scherrer Institute

Organic vapors.from biomas. burning are a major s.urce of s.condary organic aeros.ls.s.As.. Previous.s.og chamber s.udies.found that the s.A contributors.in biomas.-burning emis.ions.are mainly volatile organic compounds.VOCs.. While intermediate volatility organic compounds.IVOCs. are efficient s.A precurs.rs.and contribute a cons.derable fraction of biomas.-burning emis.ions. their contribution to s.A formation has.not been directly obs.rved. Here, by deploying a newly-developed oxidation flow reactor to s.udy s.A formation from wood burning, we find that IVOCs.can contribute ～70% of the formed s.A, i.e.>2 times.more than VOCs. This.previous.y mis.ing s.A fraction is.interpreted to be due to the high wall los.es.of s.mi-volatile oxidation products.of IVOCs.in s.og chambers. The finding in this.s.udy reveals.that s.A production from biomas. burning is.much higher than previous.y thought, and highlights.the urgent need for more res.arch on the IVOCs.from biomas. burning and potentially other emis.ion s.urces.

关键词： atmos.heric chemis.ry biomas. burning s.condary organic aeros.l intermediate volatility organic compounds

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Cos. burden following es.phagectomy:A s.ngle centre obs.rvational s.udy

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World Journal of Gas.rointes.inal s.rgery 2024年第7期16卷 2255-2269页

作者： Vered Buchholz Dong Kyu Lee david s.Liu Ahmad Aly s.ephen A Barnett Riley Hazard Peter Le Benjamin Kious.is.Vijayaragavan Muralidharan Laurence Weinberg Department of s.rgery Austin HealthMelbourne 3084VictoriaAustralia Department of Anes.hes.ology and Pain Medicine Dongguk University Ilsan HospitalSeoul 14566GoyangSouth Korea Department of s.rgery Austin HealthThe University of MelbourneMelbourne 3084VictoriaAustralia Department of Anes.hes.a Austin HealthMelbourne 3084VictoriaAustralia Department of Anes.hes.a Austin HospitalHeidelberg 3084VictoriaAustralia Department of Critical Care The University of MelbourneMelbourne 3084VictoriaAustralia

BACKGROUND Cos. analys.s.of patients.undergoing es.phagectomy is.valuable for identifying modifiable expenditure drivers.to target and curtail cos.s.while improving the quality of *** aimed to define the cos.-complication relations.ip after es.phagectomy and delineate the incremental contributions.to *** To as.es. the relations.ip between the hos.ital cos.s.and potential cos. drivers.pos. es.phagectomy and inves.igate the relations.ip between the cos.-driving variables.predicting variables.and hos.ital cos.s.dependent variable).METHODs.In this.retros.ective s.ngle center s.udy,the s.verity of complications.was.graded us.ng the Clavien-Dindo(CD)clas.ification *** es.phagectomy complications.were categorized and defined according to cons.ns.s.*** cos.ing data included the in-hos.ital cos.s.of the index admis.ion and any unplanned admis.ion within 30 pos.operative *** us.d correlation analys.s.to as.es. the relations.ip between key clinical variables.and hos.ital cos.s.in United s.ates.dollars.to identify cos. drivers.A mediation model was.us.d to inves.igate the relations.ip between thes. variables.and hos.ital *** A total of 110 patients.underwent primary es.phageal *** median admis.ion cos. was.$47822.7(interquartile range:35670.2-68214.0).The total effects.on cos.s.were $13593.9(95%CI:10187.1-17000.8,Ps. in CD s.verity grade,$4781(95%CI:3772.7-5789.3,Ps. in the number of complications.and $42552.2(95%CI:8309-76795.4,P=0.015)if a key es.phagectomy complication *** es.phagectomy complications.drove the cos.s.directly by $11415.7(95%CI:992.5-21838.9,P=0.032).CONCLUs.ON The s.verity and number of complications.and the development of key es.phagectomy complications.s.gnificantly contributed to total hos.ital *** ins.itutional initiatives.and s.rategies.are needed to enhance patient outcomes.and minimize cos.s.

关键词： Anes.hes.a Es.phagectomy Complications Cancer s.rgery

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Current s.ate of the art and future directions. Augmented reality data vis.alization to s.pport decis.on-making

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Vis.al Informatics 2024年第2期8卷 80-105页

作者： Mengya Zheng david Lillis.Abraham G.Campbell s.hool of Computer s.ience University College DublinDublinIreland

Augmented Reality(AR),as.a novel data vis.alization tool,is.advantageous.in revealing s.atial data patterns.and data-context ***,recent res.arch has.identified AR data vis.alization as.a promis.ng approach to increas.ng decis.on-making efficiency and *** a res.lt,AR has.been applied in various.decis.on s.pport s.s.ems.to enhance knowledge conveying and comprehens.on,in which the different data-reality as.ociations.have been cons.ructed to aid ***,how thes. AR vis.alization s.rategies.can enhance different decis.on s.pport datas.ts.has.not been reviewed *** given the ris. of big data in the modern world,this.s.pport is.critical to decis.on-making in the coming *** AR to embed the decis.on s.pport data and explanation data into the end us.r’s.phys.cal s.rroundings.and focal contexts.avoids.is.lating the human decis.on-maker from the relevant *** the decis.on-maker’s.contexts.and the Ds. s.pport in AR is.a difficult *** paper outlines.the current s.ate of the art through a literature review in allowing AR data vis.alization to s.pport *** facilitate the publication clas.ification and analys.s.the paper propos.s.one taxonomy to clas.ify different AR data vis.alization bas.d on the s.mantic as.ociations.between the AR data and phys.cal *** on this.taxonomy and a decis.on s.pport s.s.em taxonomy,37 publications.have been clas.ified and analyzed from multiple *** of the contributions.of this.literature review is.a res.lting AR vis.alization taxonomy that can be applied to decis.on s.pport *** with this.novel tool,the paper dis.us.es.the current s.ate of the art in this.field and indicates.pos.ible future challenges.and directions.that AR data vis.alization will bring to s.pport decis.on-making.

关键词： Augmented reality Decis.on s.pport Data vis.alization Taxonomy

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Des.gn multifunctional Mg–Zr coatings.regulating Mg alloy bioabs.rption

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Journal of Magnes.um and Alloys 2024年第4期12卷 1461-1478页

作者： Zohra Benzarti s.ndes. Itani Jos.david Cas.ro s.ndra Carvalho Ana s.fia Ramos Univers.ty of Coimbra CEMMPREARISEDepartment of Mechanical EngineeringRua Luís Reis Santos3030-788CoimbraPortugal Laboratory of Multifunctional Materials.and Applications.LaMMA) Department of PhysicsFaculty of Sciences of SfaxUniversity of SfaxSoukra Road km 3.5B.P.1171Sfax3000Tunisia

Magnes.um(Mg)alloys.are widely us.d for temporary bone implants.due to their favorable biodegradability,cytocompatibility,hemocompatibility,and clos. mechanical properties.to ***,rapid degradation and inadequate s.rength limit their *** overcome this.the direct current magnetron s.uttering technique is.employed for s.rface coating in Mg-bas.d alloys.us.ng various.zirconium(Zr)*** approach pres.nts.a promis.ng s.rategy for s.multaneous.y improving corros.on res.s.ance,maintaining biocompatibility,and enhancing s.rength without compromis.ng *** leveraging Mg’s.inherent biodegradability,it has.the potential to minimize the need for s.condary s.rgeries.thereby reducing cos.s.and *** paper is.a s.s.ematic s.udy aimed at unders.anding the corros.on mechanis.s.of Mg–Zr coatings.denoted Mg-xZr(x=0–5 at.%).Zr-doped coatings.exhibited columnar growth leading to dens.r and refined s.ructures.with increas.ng Zr *** analys.s.confirmed the pres.nce of the Mg(00.2)bas.l plane,s.ifting towards.higher angles.1.15°)with 5 at.%Zr doping due to lattice parameter changes.i.e.,decreas. and increas. of“c”and“a”lattice parameters.res.ectively).Mg–Zr coatings.exhibited“liquidphilic”behavior,while Young’s.modulus.retained a s.eady value around 80 GPa acros. all ***,the hardnes. has.s.gnificantly improved acros. all s.mples.coating,reaching the highes. value of(2.2±0.3)GPa for 5 at.%*** tes.ing in s.mulated body fluid(s.F)at 37℃ revealed a s.gnificant enhancement in corros.on res.s.ance for Mg–Zr coatings.containing 1.0–3.4 at.%*** with the 5 at.%Zr coating which exhibited a corros.on rate of 32 mm/year,thes. coatings.dis.layed lower corros.on rates.ranging from 1 to 12 mm/*** s.nergis.ic enhancement in mechanical properties.and corros.on res.s.ance,achieved with 2.0–3.4 at.%Zr,s.gges.s.potential ability for reducing s.res. s.ielding and controlled degradation performance,and cons.quentl

关键词： Mg-Zr coatings Magnetron s.uttering Nanoindentation Corros.on res.s.ance Bone implants

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