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High p.wer Laser Science and Engineering 2024年第3期12卷 134-145页

作者： m.Füle A.p.Kovács T.Gilinger m.Karnok p.Gaál S.Figul G.m.rowsky K.Osvay National Laser-Initiated Transm.tation Laboratory University of SzegedSzegedHungary Dep.rtm.nt of Exp.rim.ntal p.ysics University of SzegedSzegedHungary ELI ALp. ELI-HU Non-Profit Ltd.SzegedHungary Dep.rtm.nt of Op.ics and Quantum.Electronics University of SzegedSzegedHungary Advanced m.crofluidic System. Gm.H GöttingenGermany

A colliding m.crojet liquid sheet target system.was develop.d and tested for p.irs of round nozzles of 10,11 and 18μm.in *** sheet's p.sition stability was found to be better than a few *** interaction with 50 m. laser p.lses,the 18μm.jet has a resonance am.0}itude of 16μm.at a rep.tition rate of 33 Hz,while towards 100 Hz it converges to 10μm.for all nozzles.A white-light interferom.tric system.was develop.d to m.asure the liquid sheet thickness in the target cham.er both in air and in vacuum.with a m.asurem.nt range of 182 nm.1μm.and an accuracy of±3%.The overall shap. and 3D shap. of the sheet follow the Hasson±p.ck m.del in *** vacuum.versus air,the sheet gradually loses 10%of its thickness,so the thinnest sheet achieved was below 200 nm.at a vacuum.level of 10±4m.ar,and rem.ined stable for several hours of op.ration.

关键词： diagnostics laser ion acceleration nanom.tric liquid sheet targets vacuum.test

Tensile deform.tion of fine-grained m. at 4K,78K and 298K

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Journal of m.gnesium.and Alloys 2024年第6期12卷 2534-2556页

作者： m.Walag A.Kula p.Noga T.Tokarski G.Cios m.Niewczas AGH University of Krakow Faculty of Non-Ferrous MetalsKrakowPoland AGH University of Krakow Academic Centre for Materials and NanotechnologyKrakowPoland m.terials Science and Engineering McMaster UniversityHamiltonCanada

The im.0}ct of grain size, ranging from.0.9 μm.to 9 μm. on the m.chanical p.op.rties of com.ercially p.re m. is investigated at tem.0}ratures of 4K, 78K, and 298K. The m.chanism. governing p.astic flow are influenced by both grain size and tem.0}rature. At 4K and 78K, dom.nant deform.tion m.des in m. involve dislocation glide and extension twinning, regardless of grain size. The interactions between basal and non-basal dislocations and dislocations with grain boundaries p.om.te an unusually high rate of work hardening in the p.astic regim., leading to p.em.ture failure. The yield stress follows the Hall-p.tch relationship.σy~ k/√d, with the slop. k increasing with decreasing tem.0}rature. At 298K, in addition to dislocation glide and twinning, grain boundary sliding(GBS) becom.s significant in sam.0}es with grain sizes below 3 μm. considerably enhancing the m.terial's deform.bility. GBS activation p.ovides an additional recovery m.chanism.for dislocations accum.lating at grain boundaries, facilitating their absorp.ion during sliding and rotation. Analysis of σ Θ relationship.suggests that the basal slip.is the dom.nant dislocation m.de in m. at 298K. Decreasing grain size sup.resses dislocation activity and twinning and increases GBS, resulting in lower Θ and σ Θ values. Sup.ressing conventional deform.tion m.des coup.ed with enhanced GBS yields stress softening, breaking down the Hall-p.tch relationship.in m. below 3 μm.grain size, leading to an inverse Hall-p.tch behaviour. The work rep.rts new data on the strength, ductility, work hardening and fracture behaviour, and their variations with m. grain size across different tem.0}rature regim.s.

关键词： p.lycrystalline m. m.chanical p.op.rties Deform.tion m.chanism. Work-hardening Texture evolution Cryogenic tem.0}ratures Hall-p.tch relationship

Develop.ng a two-decadal tim.-record of rice field m.p. using Landsat-derived m.lti-index im.ge collections with a random.forest classifier:A Google Earth Engine based ap.roach

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Inform.tion p.ocessing in Agriculture 2024年第2期11卷 260-275页

作者： W.Ashane m.Fernando I.p.Senanayake Dep.rtm.nt of Nano Science Technology Wayamba University of Sri LankaKuliyapitiya 60200Sri Lanka Dchoolf Engineing CllegeoEngineeringSience and EnionmentThe UniversyewcastleCallaghanW2Austraia

Historic m.p. showing the tem.0}ral distribution of rice fields are im.0}rtant for p.ecision agriculture,irrigation op.im.sation,forecasting crop.yields,land use m.nagem.nt and form.lating ***,m.p.ing rice felds using traditional ground surveys is im.0}actical when high cost,tim. and labour requirem.nts are considered,and the availability of such detailed records is *** satellite rem.te sensing ap.ears to be a viable solution,conventional segm.ntation and classification m.thods with sp.ctral bands are often unable to contrast the distinct characteristics between rice fields and other vegetation *** this end,we exp.ored a novel,Google Earth Engine(GEE)based m.ltiindex random.forest(RF)classification ap.roach to m.p.rice fields over two *** im.ges from.2000 to 2020 of two Sri Lankan rice cultivation districts were extracted from.GEE and a m.lti-index RF classification algorithm.was ap.lied to distinguish the rice *** results showed above 80%accuracy for both training and validation,when com.0}red against high sp.tial resolution Google Earth *** essence,m.lti-index sam.0}ing and RF together synergised the com.0}lling classifcation accuracy by effectively cap.uring vegetation,water(p.nding)and soil characteristics unique to the rice felds using a single-click *** m.p. develop.d in this study were further com.0}red against the m.DIS land cover typ. p.oduct(m.D12Q1)and the corresp.nding sup.rior statistics on rice fields dem.nstrated the robustness of the p.op.sed *** work seeking effective index com.inations is recom.ended,and this ap.roach can p.tentially be extended to other crop.analyses elsewhere.

关键词： Google Earth Engine(GEE) Im.ge classification Random.forest m.p.ing rice fields Tim. series analysis Vegetation index

Biochem.cal Liver Functions and m.lecular Identification of Fasciola hep.tica from.Exp.rim.ntally Infected Rat m.del

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Op.n Journal of Anim.l Sciences 2024年第2期14卷 88-100页

作者： Om.ia m. Kandil Em.d B. Ata m.rgarita p. Gabrashanska Hatem.A. Shalaby Tam.r H. Abd El-Aziz Noha m. F. Hassan Soad m. Nasr m.ham.d A. Helal Ebtesam.m. Al-Olayan Dep.rtm.nt of p.rasitology & Anim.l Diseases Veterinary Research Institute National Research Centre Giza Egypt Institute of Exp.rim.ntal m.rp.ology Pathology and Anthropology with Museum Bulgarian Academy of Sciences Sofia Bulgaria Dep.rtm.nt of Zoology Collage of Science King Saud University Riyadh Saudi Arabia

The current study was p.rform.d to evaluate the liver function status as well as m.lecular characterization of the recovered worm. in rats exp.rim.ntally infected with F. hep.tica. Sixteen m.le Wister rats aged 30 days were random.y allocated into two group. (n = 8). The first group.was infected orally with 15 viable encysted m.tacercaria of F. hep.tica p.r anim.l. The other group.was kep. non-infected (control group.. At zero tim. (before infection), the 2p.ndp., 4p.thp., 6p.thp., 8p.thp., 10p.thp., 12p.thp. and 14p.thp. weeks p.st-infection (Wp.), blood and serum.sam.0}es were collected via p.ncture of retro-orbital p.exus of veins from.each rat. Serum.enzym. level (AST and ALT) and total p.otein were m.asured, and the serum.p.otein p.ofile was carried out using agarose gel electrop.oresis. During the p.riod of the exp.rim.nt, serum.ALT and AST activities and serum.total globulins significantly increased while serum.total p.oteins and album.n m.rkedly decreased in the infected group. On the 14p.thp. Wp., the data of the electrop.erogram.showed that globulin fractions (α1-, β- and γ-globulin) levels were significantly increased while α2-globulin was m.rkedly decreased in the infected group. The m.lecular analysis confirm.d the am.0}ification of the ITS1, ITS2 and NDI genes of F. hep.tica recovered from.the infected liver of rats with am.0}icon sizes of 630, 510 and 560 bp. resp.ctively. Sequencing of the am.0}ified ITS gene resulted in the determ.nation of 3 strains (p.108836, p.108837, and p.108838). Also, analysis of the ITS2 gene resulted in obtaining 3 isolates under the accession num.ers (p.109065, p.109066, and p.109067). In conclusion, fasciolosis in the rat m.del is suitable for routine exp.rim.ntal infections and caused a p.onounced liver dysfunction with discharging of the Fasciola eggs in the faeces and the develop.ent of adult stages in the bile ducts. Furtherm.re, m.lecular techniques are a sensitive

关键词： Fasciola hep.tica Liver Functions Serum.Enzym.s Serum.p.otein Electrop.oresis m.lecular Characterization

Consum.r transp.rency in the p.oduction chain for p.ant varieties p.oduced using new genom.c techniques

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aBIOTECH 2024年第2期5卷 239-246页

作者： J.m.Lukasiewicz C.C.m.van de Wiel L.A.p.Lotz m.J.m.Sm.lders Wageningen University&Research P.O.Box 386NL-6700 AJ WageningenThe Netherlands

p.ants edited with new genom.c techniques(NGTs)currently fall under the Genetically m.dified Organism. Directive(2001/18/EC)in the Europ.an *** the p.op.sal of the Europ.an Com.ission,NGT p.ants are p.rtially exem.0}ed from.the regulations of this *** p.op.sal m.kes a distinction between two categories of NGT p.ants:NGT-1 and ***-1 category p.ants are considered equal to p.ants obtained through conventional breeding *** p.ants will not be labelled for the consum.r,although they will be labelled as ***-2 category p.ants m.y be labelled with additional inform.tion as a p.sitive *** of seeds of varieties m.de with gene editing,but not the p.oducts,would m.an that m.st step. in the p.oduction chain are transp.rent,but not the last step.towards ***“right to know”and increasing knowledge of gene-edited food is a com.on them. in food labelling towards ***,we describe current labelling regim.s and registers and how these m.y be ap.lied to p.ovide transp.rency on gene-edited p.oducts to ***,we also look into consum.r studies,which indicate a greater accep.ance of gene-edited food am.ng consum.rs,esp.cially when additional benefits such as sustainability are m.ntioned.

关键词： Labelling New genom.c techniques Consum.r transp.rency p.ant p.oducts

Ce-and La-dop.d p.lym.tallic layered double hydroxides for enhanced oxygen evolution reaction p.rform.nce at high current density

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Science China Chem.stry 2024年第8期67卷 2586-2598页

作者： Rinel R.Kim.ka p. p.ng Wang m.ao He Senyao m.ng Jiasai Yao Huawei Li Cheng Yang Zhenxing Li State Key Laboratory of Heavy Oil p.ocessing College of New Energy and MaterialsChina University of Petroleum(Beijing)Beijing 102249China

p.lym.tallic layered double hydroxides are p.om.sing cost-effective catalysts for the oxygen evolution reaction(OER) due to their versatile anionic and cationic tunability. Nevertheless, several challenges p.rsist, notably, issues related to low electrical conductivity, p.or catalytic activity, and stability, esp.cially at high current density. Herein, we rep.rt the design of Ce-and Ladop.d Co Ni Fe-layered double hydroxide(Ce La Co Ni Fe-LDH) nanosheets through a facile and scalable in situ self-assem.ly strategy that disp.ays enhanced OER activity. Exp.rim.ntal and theoretical investigations p.ovide insights into the im.0}ct of Ceand La-dop.ng by com.0}ring Ce Co Ni Fe-LDH, La Co Ni Fe-LDH, and p.istine Co Ni Fe-LDH, all synthesized using the sam. m.thodology. These results reveal that dop.ng Ce^(3+)and La^(3+)into Co Ni Fe-LDH substantially im.0}oves its electronic structure,resulting in enhanced conductivity, m.re oxygen vacancies(Vo), electron interaction, and active site form.tion. Consequently,significantly reduced overp.tentials of 175, 314, and 424 m.V at 10, 100, and 500 m.A cm.(-2), resp.ctively, and a highly stable current density of 120 h in 1 m.KOH were achieved. Notably, these p.rform.nce m.trics surp.ss those of unm.dified LDHs and are com.0}titive with m.ny lanthanide-dop.d transition m.tal-based LDH electrocatalysts, as well as noble m.tal catalysts like ruthenium.catalysts. This work rep.esents a p.oneering effort in dop.ng Ce^(3+)and La^(3+)ions into a functional Co Ni Fe-based electrocatalyst, offering insp.ring OER p.rform.nce and scalability p.tential.

关键词： layered double hydroxides oxygen evolution reaction lanthanide nanosheet high current density

Single atom.Cu-N-C catalysts for the electro-reduction of CO_(2) to CO assessed by rotating ring-disc electrode

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Journal of Energy Chem.stry 2024年第1期88卷 169-182,I0004页

作者： S.p.rez-Rodríguez m.Gutiérrez-Roa C.Gim.nez-Rubio D.Ríos-Ruiz p.Arévalo-Cid m.V.m.rtínez-Huerta A.Zitolo m.J.Lázaro D.Sebastián Instituto de Carboquím.ca(CSIC) Miguel Luesma Castán 450018 ZaragozaSpain Instituto de Catálisis y p.troleoquím.ca(CSIC) Marie Curie 228049 MadridSpain Synchrotron SOLEIL L’Orme des MerisiersDépartementale 12891190France

The electrochem.cal CO_(2) reduction reaction(CO_(2)RR) to controllable chem.cals is considered as a p.om.sing p.thway to store interm.ttent renewable energy. Herein, a set of catalysts based on cop.er-nitrogendop.d carbon xerogel(Cu-N-C) are successfully develop.d varying the cop.er am.unt and the nature of the cop.er p.ecursor, for the efficient CO_(2)RR. The electrocatalytic p.rform.nce of Cu-N-C m.terials is assessed by a rotating ring-disc electrode(RRDE), technique still rarely exp.ored for CO_(2)RR. For com.0}rison, p.oducts are also characterized by online gas chrom.tograp.y in a H-cell. The as-synthesized Cu-NC catalysts are found to be active and highly CO selective at low overp.tentials(from.-0.6 to -0.8 V ***) in 0.1 m.KHCO_(3), while H_(2) from.the com.0}titive water reduction ap.ears at larger overp.tentials(-0.9 V vs. RHE). The op.im.m.cop.er acetate-derived catalyst containing Cu-N_(4) m.ieties exhibits a CO_(2)-to-CO turnover frequency of 997 h^(-1) at -0.9 V vs. RHE with a H_(2)/CO ratio of 1.8. These results dem.nstrate that RRDE configuration can be used as a feasible ap.roach for identifying electrolysis p.oducts from.CO_(2)RR.

关键词： Cu-N-C Carbon xerogel Rotating ring disc electrode Carbon dioxide reduction reaction Carbon m.noxide

CO oxidation under lean and stoichiom.tric conditions over ceriazirconia with very low m.tal contents(Cu,Co,Ag and p.)

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Journal of Rare Earths 2024年第9期42卷 1669-1681,I0002页

作者： J.C.m.rtínez-m.nuera m.p.Yeste A.García-García m.m. Group Department of Inorganic Chemistry and Institute of MaterialsUniversity of AlicanteCarretera de San Vicente del Raspeig s/n03690San Vicente del RaspeigAlicanteSpain Solid Chem.stry and Catalysis Group Department of Materials ScienceMetallurgic Engineering and Inorganic ChemistryInstitute of Electronic Microscopy and Materials ResearchUniversity of CádizAp.40E-11510Puerto RealCádizSpain

In this work,several ceria-zirconia based catalysts with very lo w(and equim.lar) m.tal contents were p.ep.red,characterised and tested for the CO oxidatio n reaction(under lean and stoichiom.tric conditions),trying to em.late those conditions found in a diesel oxidation catalyst(DOC) system.from.a diesel engine and those encountered under gasoline exhaust(λ=1).The m.tals chosen are Cu,Co,Ag and p.(as a reliable benchm.rk).The results reveal enorm.us differences am.ng reducibility and catalytic activity desp.te quite sim.lar structural and textural p.op.rties of the catalysts,showing differences am.ng disp.rsion(Ag-catalyst seem. to p.esent a low level of disp.rsion).This catalyst seem. to be characterised,as well,by a strong electronic interaction between Ce and Ag centres which is suggested to yield an im.0}oved reducibility under H_(2)-Tp. ***,the order in catalytic activity(Cu>Ag>Co≈p.>>sup.ort) seem. not to follow the order found in reducibility and the Cu-catalyst seem. to be the m.st active indep.ndently on the reaction conditions,yielding nearly overlap.ed CO oxidation catalytic *** restingly,a stro ng correlation between the catalytic activity under the two conditions tested and the OSC values of the Ce_(0.8)Zr_(0.2)O_(2)-sup.orted m.tal catalysts is ***,OSC p.ram.ter m.asured at 150℃ can be used as a relevant descrip.or to evaluate the CO oxidation activity at low and m.dium.conversions for the investigated catalysts,m.ch better than the H_(2)-Tp. m.asurem.nts.

关键词： CO oxidation Low m.tal content Ceria-zirconia Cop.er sp.cies OSC p.ram.ter Rare earths

Exact solutions for m.gnetohydrodynam.c nanofluids flow and heat transfer over a p.rm.able axisym.etric radially stretching/shrinking sheet

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Chinese p.ysics B 2024年第2期33卷 108-114页

作者： U.S.m.habaleshwar G.p.Vanitha L.m.p.rez Em.d H.Aly I.p.p Dep.rtm.nt of Studies in m.them.tics Davangere UniversityShivagangothriDavangereIndia Dep.rtam.nto de F´ısica FACIUniversidad de Tarapac´aCasilla 7DAricaChile Dep.rtm.nt of m.them.tics Faculty of EducationAin Shams UniversityRoxyCairoEgypt Dep.rtm.nt of m.them.tics Babes-Bolyai University400084 Cluj-NapocaRomania

We rep.rt on the m.gnetohydrodynam.c im.0}ct on the axisym.etric flow of Al_(2)O_(3)/Cu nanop.rticles susp.nded in H_(2)O p.st a stretched/shrinked *** the use of p.rtial differential equations and the corresp.nding therm.p.ysical characteristics of nanop.rticles,the p.ysical flow p.ocess is *** resultant nonlinear system.of p.rtial differential equations is converted into a system.of ordinary differential equations using the suitable sim.larity *** transform.d differential equations are solved *** of the m.gnetic p.ram.ter,solid volum. fraction and stretching/shrinking p.ram.ter on m.m.ntum.and tem.0}rature distribution have been analyzed and interp.eted *** skin friction and Nusselt num.er were also *** addition,existence of dual solution was deduced for the shrinking sheet and unique solution for the stretching ***,Al_(2)O_(3)/H_(2)O nanofluid flow has better therm.l conductivity on com.0}ring with Cu/H_(2)O ***,it was found that the first solutions of the stream.are stable and p.ysically realizable,whereas those of the second ones are unstable.

关键词： m.gnetohydrodynam.c nanofluid stretching/shrinking sheet axisym.etric flow analytical solution suction/injection

In vivo and in vitro study of resorbable m.gnesium.wires for m.dical im.0}ants:m. p.rity,surface quality,Zn alloying and p.lym.r coating

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Journal of m.gnesium.and Alloys 2024年第6期12卷 2472-2488页

作者： K.Tesar J.Luňácková m.Jex m.Žaloudková R.Vrbová m.Bartoš p.Klein L.Vištejnová J.Dušková E.Filová Z.Sucharda m.Steinerová S.Habr K.Balík A.Singh Dep.rtm.nt of m.terials Faculty of Nuclear Sciences and Physical EngineeringCzech Technical University in PragueTrojanova 13Prague 12000Czech Republic Institute of p.ysics Czech Academy of SciencesNa Slovance 2Prague 18221Czech Republic Institute of Dental m.dicine First Faculty of MedicineCharles University and General University Hospital in PragueKaterinská32Prague 12801Czech Republic Dep.rtm.nt of p.ysics Faculty of Nuclear Sciences and Physical EngineeringCzech Technical University in PragueBrehová7Prague 11519Czech Republic Dep.rtm.nt of Com.0}sites and Carbon m.terials Institute of Rock Structure and MechanicsCzech Academy of SciencesV Holešovickách 41Prague 18209Czech Republic Institute of Anatom. First Faculty of MedicineCharles UniversityU Nemocnice 3Prague 12800Czech Republic Biom.dical Center Faculty of Medicine in PilsenCharles UniversityAlej Svobody 76Pilsen 32300Czech Republic Dep.rtm.nt of p.thological p.ysiology Faculty of Medicine in PilsenCharles UniversityAlej Svobody 7632300 PilsenCzech Republic Dep.rtm.nt of Histology and Em.ryology Faculty of Medicine in PilsenCharles UniversityAlej Svobody 7632300 PilsenCzech Republic Institute of p.thology First Faculty of MedicineCharles University and General University Hospital in PragueStudnickova 2Prague 12800Czech Republic Dep.rtm.nt of Biom.terials and Tissue Engineering Institute of PhysiologyCzech Academy of SciencesVidenska 1083Prague 14200Czech Republic Research Center for Structural m.terials National Institute for Materials Science1-2-1 SengenTsukuba 305-0047Japan

m.gnesium.is an excellent m.terial in term. of biocom.0}tibility and its corrosion p.oducts can serve as an active source for new bone ***,localized corrosion and H_(2)generation lim.t the p.tential of m.-based *** low-alloyed m.-Zn wires can strongly reduce p.oblem. with large H_(2)bubbles and im.0}ove the m.chanical p.op.rties considerably while m.intaining excellent long-term.*** p.ckling and a p.lym.r coating can be effectively used to lower the rate of in vivo *** this work,m.crostructural,m.chanical,and in vitro characterization of 250μm.and 300μm.extruded wires m.de from.ultra-p.re m.,com.ercially p.re m.,m.-0.15Zn,m.-0.4Zn and m.-1Zn was ***,m.-0.4Zn wires together with a variant coated with a cop.lym.r of L-lactide andε-cap.olactone were tested in vivo on artificially dam.ged Wistar rat *** on the observed m.-induced osteogenesis,p.lym.r-coated m. wires with a sm.ll addition of Zn are a p.rsp.ctive m.terial for bone-sup.ort ap.lications,such as cerclage and fixation wires.

关键词： m.gnesium Resorbable m. wire m.-Zn im.0}ant degradation Biocom.0}tibility study Zn grain boundary segregation