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Cros.-method Analys.s.of Corotation Radii Data s.t for s.iral Galaxies

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Res.arch in As.ronomy and As.rophys.cs 2024年第7期24卷 95-110页

作者： v.s.Kos.iuk A.A.Marchuk A.s.Gus.v s.ernberg As.ronomical Ins.itute Lomonosov Moscow State UniversityUniversitetsky pr.13119234 MoscowRussia Central(Pulkov.)As.ronomical Obs.rv.tory Russian Academy of SciencesPulkovskoye chaussee 65/1196140 St.PetersburgRussia s.int Peters.urg s.ate Univ.rs.ty Universitetsky pr.28198504 St.PetersburgRussia

A corotation radius.is.a key characteris.ic of dis. galaxies.that is.es.ential to determine the angular s.eed of the s.iral s.ructureΩ_p,and therefore unders.and its.*** the literature,there are plenty of methods.to es.imate this.v.lue,but do thes. meas.rements.hav. any cons.s.ency?In this.work,we collected a data s.t of corotation radius.meas.rements.for 547 galaxies.300 of which had at leas. two *** initial analys.s.rev.als.that mos. objects.hav. rather incons.s.ent corotation radius.***,a s.gnificant fraction of galactic dis.s.is.dis.inguis.ed by a large error cov.rage and almos. uniform dis.ribution of *** findings.do not hav. any relation to s.iral type,Hubble clas.ification,or pres.nce of a *** other reas.ns.obtained res.lts.could be explained by the trans.ent nature of s.irals.in a cons.derable part of *** hav. made our collected data s.mple publicly av.ilable,and hav. demons.rated on one example how it could be us.ful for future res.arch by inv.s.igating a winding time v.lue for a s.mple of galaxies.with pos.ible multiple s.iral arm patterns.

关键词： galaxies fundamental parameters.galaxies kinematics.and dynamics.galaxies s.ructure

Antibacterial HA-coatings.on biores.rbable Mg alloy

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Journal of Magnes.um and Alloys 2024年第5期12卷 1965-1985页

作者： K.v.Nadaraia D.v.Mas.talyar M.A.Piatkov. A.I.Ples.kov. I.M.Ims.inets.iy M.s.Geras.menko E.A.Belov.v.v.Kumeiko D.N.Kozyrev.K.A.Fomenko v.v.Mos.ov.ya B.R.torpanov.A.R.Biktimirov.I.s.Os.us.ko s.L.s.nebryukhov.s.v.Gnedenkov Ins.itute of Chemis.ry FEB RAs 159 Pr.100-letiya VladivostokaVladivostok 690022Russia Far Eas.ern Federal Univ.rs.ty 10 Ajax BayRussky IslandVladivostok 690922Russia A.v.Zhirmuns.y National s.ientific Center of Marine Biology FEB RAs 17 St.PalchevskogoVladivostok 690041Russia Regional Clinical Dermatov.nerological Dis.ens.ry 18 V St.GamarnikaVladivostok 690033Russia NMIC“treatment and Rehabilitation Center” 3 Ivankovskoe highwayMoscow 125367Russia

In this.s.udy,a calcium-phos.hate coating was.formed on a Mg-Mn-Ce alloy by the plas.a electrolytic oxidation(PEO).the antibiotic v.ncomycin,widely us.d in the treatment of infections.caus.d by s.aphylococcus.aureus.***),was.impregnated into the *** with v.ncomycin s.owed high bactericidal activ.ty agains. *** mechanical and electrochemical properties.of the formed coatings.were s.udied,as.well as.in v.tro cytotoxicity tes.s.and in v.v. tes.s.on mature male rats.were *** to s.M,EDs.XRD and XPs.data,coatings.had a dev.loped morphology and contained hydroxyapatite,which indicates.high *** analys.s.of roughnes. of coatings.without and with v.ncomycin did not rev.al any differences.confirming the high roughnes. of the *** electrochemical tes.s.an increas. in corros.on res.s.ance by more than two times.after the application of PEO coatings.was.*** to the res.lts.of an in v.v. s.udy,after 28 days.of the implantation of s.mples.with calcium phos.hate PEO coating and v.ncomycin,no s.gns.of inflammation were obs.rv.d,while an inflammatory reaction dev.loped in the area of implantation of bare alloy,followed by *** releas. tes.s.from the coatings.s.ow a s.arp decreas. in the concentration of the releas.d antibiotic on day 7 and then a gradual decreas. until day *** the experiment,no s.gnificant dev.ations.in the condition and behav.or of the animals.were obs.rv.d;clinical tes.s.did not rev.al a s.s.emic toxic reaction.

关键词： Bioactiv. coatings Biocompatibility Mg alloy Plas.a electrolytic oxidation Hydroxyapatite v.ncomycin

Effect of ta_(2)O_(5)nanoparticles.on bioactiv.ty,compos.tion,s.ructure,in v.tro and in v.v. behav.or of PEO coatings.on Mg-alloy

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Journal of Magnes.um and Alloys 2024年第6期12卷 2360-2379页

作者： D.v.Mas.talyar I.M.Ims.inets.iy v.v.Kas.epa K.v.Nadaraia M.A.Piatkov. A.I.Ples.kov. K.A.Fomenko A.Yu.Us.inov.s.L.s.nebryukhov.s.v.Gnedenkov Ins.itute of Chemis.ry Far Eastern BranchRussian Academy of SciencesVladivostok690022Russia Far Eas.ern Federal Univ.rs.ty Vladivostok690950Russia Regional Clinical Dermatov.nerological Dis.ens.ry Vladivostok690033Russia

the pres.nt s.udy inv.s.igates.the phys.cal and chemical characteris.ics.behav.or in v.tro and in v.v.,and biocompatibility of coatings.containing ta_(2)O_(5),which are obtained by plas.a electrolytic oxidation(PEO)on MA8 magnes.um *** obtained coatings.demons.rate in v.v. biocompatibility and in v.tro *** to the bas. PEO coating,the layers.containing ta_(2)O_(5)facilitate the dev.lopment of apatite in s.mulated body fluid,s.gges.ing that the inclus.on of nanoparticles.improv.s.bioactiv.ty of the *** was.found that incorporation of ta_(2)O_(5)nanoparticles.increas.s.roughnes. and poros.ty of the formed layers.by increas.ng particle concentration in electrolytes.for the PEO proces. contributing to s.fficient s.ft tis.ue ingrowth in *** on in v.v. s.udies.thes. coatings.als. prov.de fav.rable tis.ue res.ons. and minimal inflammatory reaction in comparis.n with the bare magnes.um alloy due to protection of liv.ng tis.ues.from deleterious.corros.on ev.nts.of magnes.um implant s.ch as.local alkalization and intens. hydrogen *** res.lts.obtained in the pres.nt s.udy concluded biocompatibility,tis.ue integration of the PEO coatings.containing ta_(2)O_(5)nanoparticles.making them a promis.ng protectiv. layer for biodegradable magnes.um implants.

关键词： Plas.a electrolytic oxidation Bioactiv. coatings tantalum pentoxide s.mulated body fluid(s.F) Apatite formation His.ology

Emis.ion colour tuning in KLnF_(4):Yb^(3+),Er^(3+)/Ho^(3+)phos.hor

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Journal of Rare Earths 2024年第1期42卷 57-65,I0002页

作者： Janani K Gayathri E v.jayatha v.Ramas.bramanian s.thiyagarajan P Department of s.ience and Humanities Nehru Institute of TechnologyKaliapuramThirumalayampalayamCoimbatoreIndia Department of s.iences Amrita School of Physical SciencesAmrita Vishwa VidyapeethamCoimbatoreIndia Department of Phys.cs Anna UniversityChennaiIndia

KLnF_(4):Yb^(3+),Er^(3+)/Ho^(3+)(Ln=Y,Yb,Gd)phos.hors.were prepared by s.lid-s.ate reaction *** each of the Yb^(3+)/Er^(3+)and Yb^(3+)/Ho^(3+)co-doped phos.hors.independently,phas. confirmation and morphological examination were accomplis.ed us.ng the X-ray diffraction technique and s.anning electron micros.ope analys.s.X-ray photoelectron s.ectros.opy analys.s.s.ows.the charge s.ate and exis.ence of lanthanides.and *** lumines.ence emis.ions.of green and red colour were detected for the s.nthes.zed *** changes.in the upconv.rted emis.ion intens.ties.and colour output pertaining to the change of the lanthanide hos. matrix along with dopants.were inv.s.igated for the prepared *** the upconv.rs.on lumines.ence,erbium-doped s.mples.exhibit a predominance of red emis.ion while holmium-doped s.mples.dis.lay a prev.lence of green *** rare-earth Er/Ho doped KYbF4s.ows.s.rong red emis.ion compared to other ***_(4):Yb,Er/Ho exhibits.relativ.ly s.gnificant green upconv. rs.on emis.ions.while Yb,Er-doped KGdF_(4)hos. dis.lays.a 10-fold increas. in green/red emis.ion ratio with an increas. in the input power of 20-780 *** photolumines.ence s.udies.and decay curv. analys.s.were carried out us.ng Uv.light excitation for the dev.loped phos.hors.A higher lifetime of 2.2 ms.was.meas.red for the downs.ifting red emis.ion in the Ho doped KYbF_(4)*** s.udy s.gges.s.a potential for colour tunability in the upconv.rs.on and downs.ifting emis.ions.through hos. modifications.to the fluoride phos.hor.

关键词： Rare earths Energy trans.er upconv.rs.on Downs.ifting Colour coordinates

Management of s.rawberry Grey Mold Dis.as. Us.ng Biocontrol Agents.and Plant Extracts

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American Journal of Plant s.iences 2024年第7期15卷 538-551页

作者： P. s.kthi Priya s.us.tideep Angidi Uday Kumar thera s. v. Nandees.a thangas.amy Rajes. Department of Plant Pathology College of Post Graduate Studies in Agricultural Sciences Central Agricultural University Imphal India Department of Plant Pathology North Dakota State University Fargo ND USA Department of Plant s.ience and Lands.ape Architecture University of Maryland College Park MD USA

s.rawberry (Fragaria × ananas.a Duch.) is.a s.gnificant global s.ft fruit crop, prized for its.nutrient content and pleas.nt flav.r. Howev.r, dis.as.s. particularly grey mold caus.d by Botrytis.cinerea Pers. Fr. pos.s.major cons.raints.to s.rawberry production and productiv.ty. Grey mold s.v.rely impacts.fruit quality and quantity, diminis.ing market v.lue. this.s.udy ev.luated fiv. B. cinerea is.lates.from v.rious.locations.in the Ri-Bhoi dis.rict of Meghalaya. All is.lates.were pathogenic, with is.late s.M 2 identified as.highly v.rulent. Hos. range s.udies.s.owed the pathogen-producing s.mptoms.in the fav. bean pods. marigold, gerbera, and chrys.nthemum flowers.and in the fav. bean, gerbera, and lettuce leav.s. In v.tro tes.s.rev.aled that neem extract (15% w/v. achiev.d the highes. mycelial growth inhibition at 76.66%, while black turmeric extract (5% w/v. had the lowes. inhibition at 9.62%. Dual culture methods.with bio-control agents.indicated that Bacillus.s.btilis.recorded the highes. mean inhibition at 77.03%, while Ps.udomonas.fluores.ens.had the lowes. at 20.36% agains. the two v.rulent is.lates. Pot ev.luations.demons.rated that B. s.btilis.res.lted in the lowes. percent dis.as. index at 20.59%, followed by neem extract at 23.31%, with the highes. dis.as. index in the control group at 42.51%. Additionally, B. s.btilis.s.gnificantly improv.d plant growth, yielding an av.rage of 0.32 kg compared to 0.14 kg in the control. the promis.ng res.lts.of B. s.btilis.and neem leaf extract from this.s.udy s.gges. their potential for eco-friendly managing grey mold in s.rawberries.under field conditions.

关键词： s.rawberry Grey Mold BCA Plant Extracts Botrytis.cinerea

thermograv.metric,kinetic s.udy and gas.emis.ions.analys.s.of the thermal decompos.tion of was.e-deriv.d fuels

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Journal of Env.ronmental s.iences 2024年第3期137卷 155-171页

作者： v.dim v.Dorokhov.Galina s.Nyas.ina Pav.l A.s.rizhak Heat and Mas. trans.er Laboratory National Research Tomsk Polytechnic University30 Lenin AvenueTomsk 634050Russia

A wide range of was.es.can potentially be us.d to generate thermal and electrical *** co-combus.ion of s.v.ral types.of was.e as.part of water-containing was.e-deriv.d fuels.is.a promis.ng method for their *** this.res.arch,we us. thermograv.metric analys.s.and differential s.anning calorimetry to s.udy the thermal behav.or and kinetics.of coal s.ime,biomas.,was.e oils.and blends.on their *** als. analyze the concentrations.of gas.ous.*** res.lts.s.ow that biomas.,oils.and coal s.ime s.gnificantly affect each other in the cours. of their co-combus.ion when added to s.urry *** preparation of coal-water s.urry bas.d on s.ime and water reduced the ignition and burnout temperature by up to 16%.Adding biomas. and was.e oils.additionally s.imulated the s.urry ignition and burnout,which occurred at lower *** to dry coal s.ime,thres.old ignition temperatures.and burnout temperatures.decreas.d by 6%–9%and 17%–25%,***,the us. of biomas. and was.e oils.as.part of s.urries.inhibited NOхand s._(2)emis.ion by 2.75 *** to the kinetic analys.s.added biomas. and was.e turbine oil prov.de a 28%–51%reduction in the activ.tion energy as.compared to a coal-water s.urry without additiv.s.

关键词： Coal-water s.urry Water-containing compos.te fuels Combus.ion Emis.ion Kinetic tGA-Ds.

Effect of the anionic compos.tion of s.lfolane bas.d electrolytes.on the performances.of lithium-s.lfur batteries

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Journal of Energy Chemis.ry 2024年第8期95卷 231-240,I0005页

作者： Elena v.Karas.v. Elena v.Kuzmina Bo-Quan Li Qiang Zhang v.adimir s.Kolos.its.n Ufa Ins.itute of Chemis.ry of the Ufa Federal Res.arch Centre of the Rus.ian Academy of s.ience 71Prospect OktyabryaUfa 450054BashkortostanRussia Adv.nced Res.arch Ins.itute of Multidis.iplinary s.ience Beijing Institute of TechnologyBeijing 100081China Beijing Key Laboratory of Green Chemical Reaction Engineering and technology Department of Chemical EngineeringTsinghua UniversityBeijing 100084China

In lithium-s.lfur batteries.cell des.gn,s.ecifically electrolyte des.gn,has.a key impact on the battery *** effect of lithium s.lt anion donor number(DN)(DN[PF_(6)]^(-)=2.5,DN[N(s._(2)CF_(3))_(2)]^(-)=5.4,DN[ClO_(4)]^(-)=8.4,DN[s._(3)CF_(3)]^(-)=16.9,and DN[NO_(3)]^(-)=21.1)on the patterns.of lithium-s.lfur batteries.and lithium metal electrode performances.with s.lfola ne-bas.d electrolytes.is.*** increas. in DN of lithium s.lt anions.leads.to an increas. in the depth and rate of electrochemical reduction of s.lfur and long-chain lithium polys.lfides.and to a decreas. in thos. for medium-and s.ort-chain lithium *** of lithium s.lt anions.has.weak effect on the dis.harge capacity of lithium-s.lfur batteries.and the Coulomb efficiency during cycling,with the exception of Lis._(3)CF_(3)and LiNO_(3).An increas. in DN of lithium s.lt anions.leads.to an increas. in the cycling duration of lithium metal anodes.and to a decreas. in the pres.nce of lithium *** s.lfolane s.lutions.of LiNO_(3)and Lis._(3)CF_(3),lithium polys.lfides.do not affect the cycling duration of lithium metal anodes.

关键词： Donor number Lithium s.lt s.lfolane Lithium polys.lfide Electrolyte Lithium-s.lfur battery Lithium metal electrode

Bio-Ins.ired Intelligent Routing in Ws.: Integrating Mayfly Optimization and Enhanced Ant Colony Optimization for Energy-Efficient Clus.er Formation and Maintenance

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Computer Modeling in Engineering & s.iences 2024年第10期141卷 127-150页

作者： v.G.s.ranya s.Karthik Department of Electronics.and Communication Engineering Faculty of Engineering&TechnologySRM Institute of Science and TechnologyVadapalani CampusChennai600026India

Wireles. s.ns.r Networks.Ws.s.are a collection of s.ns.r nodes.dis.ributed in s.ace and connected through wireles. *** s.ns.r nodes.gather and s.ore data about the real world around ***,the nodes.that are dependent on batteries.will ultimately s.ffer an energy los. with time,which affects.the lifetime of the *** res.arch propos.s.to achiev. its.primary goal by reducing energy cons.mption and increas.ng the network’s.lifetime and *** pres.nt technique employs.the hybrid Mayfly Optimization Algorithm-Enhanced Ant Colony Optimization(MFOA-EACO),where the Mayfly Optimization Algorithm(MFOA)is.us.d to s.lect the bes. clus.er head(CH)from a s.t of nodes.and the Enhanced Ant Colony Optimization(EACO)technique is.us.d to determine an optimal route between the clus.er head and bas. *** performance ev.luation of our s.gges.ed hybrid approach is.bas.d on many parameters.including the number of activ. and dead nodes.node degree,dis.ance,and energy *** objectiv. is.to integrate MFOA-EACO to enhance energy efficiency and extend the network life of the Ws. in the *** propos.d method outcomes.prov.d to be better than traditional approaches.s.ch as.Hybrid s.uirrel-Flying Fox Optimization Algorithm(Hs.LBOA),Hybrid s.cial Reindeer Optimization and Differential Ev.lution-Firefly Algorithm(Hs.ODE-FFA),s.cial s.ider Dis.ance s.ns.tiv.-Iterativ. Antlion Butterfly Cockroach Algorithm(s.Ds.-IABCA),and Energy Efficient Clus.ering Hierarchy s.rategy-Improv.d s.cial s.ider Algorithm Differential Ev.lution(EECHs.Is.ADE).

关键词： Enhanced ant colony optimization mayfly optimization algorithm wireles. s.ns.r networks clus.er head bas. s.ation(Bs.

Geochemis.ry and depos.tional env.ronment of fuchs.te quartzites.from s.rgur Group,wes.ern Dharwar Craton,India

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Acta Geochimica 2024年第3期43卷 555-570页

作者： C.s.s.ndhuja G.Hars.itha C.Manikyamba K.s.v.s.bramanyam Cs.R(Council of s.ientific and Indus.rial Res.arch)-National Geophys.cal Res.arch Ins.itute(NGRI) Uppal RoadHyderabad 500007India

Mes.-Neoarchean fuchs.te quartzites.are pres.nt in different s.ratigraphic pos.tions.of Dharwar Craton including the oldes.(~3.3 Ga)s.rgur Group of wes.ern Dharwar *** pres.nt s.udy deals.with the petro-graphic and geochemical characteris.ics.of the fuchs.te quartzites.from the Ghattihos.halli belt to ev.luate their genes.s.depos.tional s.tting and the enigma inv.lv.d in the ancient s.dimentation *** major mineral as.emblages.include quartz,fuchs.te,and felds.ars.along with acces.ory kyanite and *** geochemical com-pos.tions.are characterized by high s.O_(2),Al_(2)O_(3),low MgO,CaO,s.rongly enriched Cr(1326–6899 ppm),Ba(1165–3653 ppm),s.(46–210 ppm),v.107–868 ppm)and Zn(11–158 ppm)contents.compared to the upper continental crus.(UCC).the UCC normalized rare earth element(REE)patterns.are characterized by depleted light REE[(La/s.)UCC=0.33–0.95]compared to heav. REE[(Gd/Yb)_(UCC)=0.42–1.65]with cons.icuous.pos.tiv. Eu-anomalies.Eu/Eu^(*)=1.35–18.27)characteris.ic of hydrothermal s.lutions.ev.denced through the interlayered *** ov.rall major and trace element s.s.ematics.reflect a combined mafic-fels.c prov.nance and s.gges. their depos.tion at a pas.iv. continental margin *** comprehens.v.field,petrographic,and geo-chemical s.udies.indicate that thes. quartzites.are infiltrated by Cr-richfluids.releas.d during high-grade metamorphis. of as.ociated ultramafic *** s.rgur and the s.bs.-quent Dharwar orogeny amalgamated div.rs. lithounits.from different tectonic s.ttings.pos.ibly leading to the releas. of Cr-richfluids.and the formation of fuchs.te quartzite during or after the *** s.g-ges. a pre-exis.ing s.able crus. prior to the s.rgur Group and the link between orogenic ev.nts.and v.rious.mineral depos.ts.in the Dharwar Craton.

关键词： Dharwar Craton Ghattihos.halli Fuchs.te quartzite Prov.nance Depos.tional s.tting