检索结果-南通市图书馆

Acta Metallur.ica Sinica(English Letter.) 2024年第2期37卷 308-324页

作者： Gang Niu r.i Yuan r.d.K.Misr. na Gong Zhi-Hui Zhang Hao-Xiu Chen Hui-Bin Wu Cheng-Jia Shang Xin-Ping Mao Collabor.tive Innovation Center.of Steel Technology University of Science and Technology BeijingBeijing100083China Labor.tor. for.Excellence in Ad.anced.Steel r.sear.h Department of MetallurgicalMaterials and Biomedical EngineeringUniversity of Texas at El PasoEl PasoTX79968USA Institute of Mater.als r.sear.h and.Engineer.ng Agency for ScienceTechnologyand ResearchSingapore138634Singapore d.par.ment of Mater.als Science and.Engineer.ng University of TorontoTorontoONM5S 3E4Canada

The cor.osion behavior.and.mechanism of 3Ni weather.ng steel in a simulated.oceanic atmospher.c envir.nment ar. investigated.in or.0}r.to compr.hend.the impacts of La,as d.ter.ined.thr.ugh electr.chemical analysis and.r.st layer.*** r.sults of this stud. d.monstr.te that the ad.ition of La enhances the cor.osion r.sistance of 3Ni weather.ng steel in the mar.ne atmospher.c envir.nment,ther.by r.d.cing the cor.osion r.te and.impr.ving the pr.tection of the r.st *** influence of La on cor.osion r.sistance can be attr.buted.to two pr.mar. ***,La functions as a gr.in r.finer.minimizing the potential d.ffer.nce of the micr.-r.gions on the substr.te sur.ace,ther.by significantly r.d.cing the cor.osion of bar. steel in the mar.ne ***,La inhibits the pr.cess of Fe_(3)O_(4) oxid.tion back toγ-FeOOH d.r.ng cor.osion at the local site,thus d.cr.asing the for.ation ofγ-FeOOH and.enhancing the char.e tr.nsfer.*** r.sear.h wor. may ser.e as a r.fer.nce for.expand.ng the application of r.r. ear.h elements in the field.of weather.ng steel.

关键词： Weather.ng steel r.r. ear.h r.st layer Cor.osion behavior Cor.osion r.sistance

Molecular.mechanism of flower.ng time r.gulation in Br.ssica r.pa:similar.ties and.d.ffer.nces with Ar.bid.psis

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Hor.icultur.l Plant Jour.al 2024年第3期10卷 615-628页

作者： na Li r.i Yang Shuxing Shen Jianjun Zhao State Key Labor.tor. of Nor.h China Cr.p Impr.vement and.r.gulation Key Laboratory of Vegetable Germplasm Innovation and Utilization of HebeiCollaborative Innovation Center of Vegetable Industry in HebeiCollege of HorticultureHebei Agricultural UniversityBaodingHebei 071000China

Pr.per.y r.gulated.flower.ng time is pivotal for.successful plant *** flor.l tr.nsition fr.m vegetative gr.wth to r.pr.d.ctive gr.wth is r.gulated.by a complex gene r.gulator. networ. that integr.tes envir.nmental signals and.inter.al cond.tions to ensur. that flower.ng takes place und.r.favor.ble *** r.pa is a d.ploid.Cr.cifer.e species that includ.s sever.l var.eties that ar. cultivated.as vegetable or.oil *** time is one of the most impor.ant agr.cultur.l tr.its of *** cr.ps because of its influence on yield.and.*** tr.nsition to flower.ng in *** is r.gulated.by sever.l envir.nmental and.d.velopmental cues,which ar. per.eived.by sever.l signaling pathways,includ.ng the ver.alization pathway,the autonomous pathway,the cir.ad.an clock,the ther.osensor. pathway,and.gibber.llin(GA)*** signals ar. integr.ted.to contr.l the expr.ssion of flor.l integr.tor. Br.Ts and.Br.OC1s to r.gulate *** this r.view,we summar.zed.cur.ent r.sear.h ad.ances on the molecular.mechanisms that gover. flower.ng time r.gulation in *** and.compar. this to what is known in Ar.bid.psis.

关键词： Flower.ng time Br.ssica r.pa Ver.alization Photoper.od

r.active Tr.nspor. Pr.cess of Ear.hquake-ind.ced.Hyd.ochemical Changes in Guand.ng Ther.al Spr.ng,Wester. Sichuan,China

在线全文

学校读者我要写书评

暂无评论

Acta Geologica Sinica(English Ed.tion) 2024年第1期98卷 241-249页

作者： na Jin JIANG Xue SHI Zheming CHEN Yanmei Hubei Key Labor.tor. of Petr.leum Geochemistr. and.Envir.nment(Yangtze Univer.ity) Wuhan 430100China School of Envir.nmental Stud.es China University of GeosciencesWuhan 430074China School of Water.r.sour.es and.Envir.nment China University of GeosciencesBeijing 100083China State Key Labor.tor. of Water.r.sour.e Pr.tection and.Utilization in Coal Mining Beijing 100000China

Ear.hquake-r.lated.hyd.ochemical changes in ther.al spr.ngs have been wid.ly obser.ed.however.quantitative mod.ling of the r.active tr.nspor. pr.cess is *** the pr.sent stud.,we apply r.active tr.nspor. simulation to captur. the hyd.ochemical r.sponses in a ther.al spr.ng following the Wenchuan Ms 8.0 and.Lushan Ms 7.0 *** fir.t constr.in d.ep r.ser.oir.geother.al fluid.compositions and.temper.tur. by multicomponent geother.ometr.,and.then a r.active geochemical tr.nspor. mod.l is constr.cted.to r.pr.d.ce the hyd.ochemical evolution *** r.sults show that the r.char.e fr.m the shallow aquifer.incr.ases gr.d.ally until it r.aches a peak because of the per.eability enhancement caused.by the Lushan ear.hquake,which may be the mechanism to explain the ear.hquake-r.lated.hyd.ochemical *** contr.st to the postseismic effect of the Wenchuan ear.hquake,the chemical evolution can be consid.r.d.as hyd.ochemical anomalies r.lated.to the Lushan *** stud. pr.ves that the efficient simulation of r.active tr.nspor. pr.cesses is useful for.investigating ear.hquake-r.lated.signals in hyd.ochemical time ser.es.

关键词： ear.hquake hyd.ochemical changes r.active geochemical tr.nspor. mod.l Kangd.ng ar.a

Molecular.mechanisms of str.ss r.sistance in sor.hum: Implications for.cr.p impr.vement str.tegies

在线全文

学校读者我要写书评

暂无评论

Jour.al of Integr.tive Agr.cultur. 2024年第3期23卷 741-768页

作者： Hongxiang Zheng Yingying d.ng Xianmin d.ao na Sui Shand.ng Pr.vincial Key Labor.tor. of Plant Str.ss/College of life Sciences Shandong Normal UniversityJinan 250014China Institute of Cr.p Sciences Chinese Academy of Agricultural SciencesBeijing 100081China

Abiotic str.sses, such as d.ought, salt, extr.me temper.tur.s, and.heavy metal pollution, ar. the main envir.nmental factor. that limit cr.p gr.wth and.yield. Sor.hum, a C4 gr.ss plant with high photosynthetic efficiency, can gr.w in ad.er.e envir.nmental cond.tions d.e to its excellent str.ss r.sistance char.cter.stics. Ther.for., unr.veling the str.ss-r.sistance mechanism of sor.hum could.pr.vid. a theor.tical basis for.d.veloping and.cultivating var.ous str.ss-r.sistant cr.ps. This und.r.tand.ng could.also help to cr.ate a cond.cive envir.nment for.using mar.inal soil in agr.cultur. and.ensur.ng food.secur.ty. In this r.view, we d.scuss the ad.ptation mechanisms of sor.hum und.r.d.ought, salinity, temper.tur., and.soil heavy metal str.sses, the specific r.sponse to str.ss, the scr.ening of sor.hum-r.sistant ger.plasm, and.the id.ntification and.functional analysis of the r.levant genes and.quantitative tr.it loci(QTL). In ad.ition, we d.scuss the application potential of d.ffer.nt str.ss-toler.nt sor.hum ger.plasms r.por.ed.to d.te and.emphasize the feasibility and.potential use in d.veloping and.pr.moting highly str.ss-toler.nt sor.hum in mar.inal soil.

关键词： abiotic str.ss C4 plants QTL sor.hum str.ss r.sistance yield.stability

UiO-66-NH_(2)nanopar.icles suppor.ed.on layer.d.d.uble hyd.oxid.s as an excellent ad.or.ent for.levofloxacin captur.

在线全文

学校读者我要写书评

暂无评论

Par.icuology 2024年第9期92卷 155-165页

作者： Yan Li Heng Lin Qiaolan Yu na Ma Wei d.i College of Geogr.phy and.Envir.nmental Sciences Zhejiang Normal UniversityJinhua321004China Key Labor.tor. of the Ministr. of Ed.cation for.Ad.anced.Catalysis Mater.als College of Chemistry and Materials ScienceZhejiang Normal UniversityJinhua321004China

The ad.or.tion per.or.ances of ind.vid.al ad.or.ent such as UiO-66-NH_(2)and.MgAl-layer.d.d.uble hyd.oxid.s(MgAl-Ld.)towar.0}levofloxacin(LVX)is less satisfactor. d.e to the d.sappointing uptake capacity and.ad.or.tion ***,a 3d.flower.like composite ad.or.ent pr.par.d.via iter.tive hyd.other.al synthesis method.anchor.ng UiO-66-NH_(2)nanopar.icles onto the MgAl-Ld. *** to the syner.istic effects of UiO-66-NH_(2),and.MgAl-Ld.,the MgAl-Ld.@UiO-66-NH_(2)exhibits an outstand.ng ad.or.tion per.or.ance towar.0}***,the maximum LVX uptake capacity over.MgAl-Ld.@UiO-66-NH_(2)r.ached.268 mg/g,which was higher.than that of the ind.vid.al ad.or.tion mater.als UiO-66-NH_(2)(41 mg/g),MgAl-Ld.(140 mg/g),and.some ad.or.ents r.por.ed.in pr.vious *** r.pid.ad.or.tion pr.cess can r.ach equilibr.um within 20 min,which confor.ed.well to the pseud.-second.or.0}r.kinetics and.the Langmuir.isother. *** ther.od.namic r.sult also ind.cated.that the ad.or.tion was spontaneous and.exother.ic,simultaneous coexisting physical and.chemical ad.or.tion ***,the MgAl-Ld.@UiO-66-NH_(2)still maintained.excellent ad.or.tion capacity with a slightly d.cr.ase after.fifth cycle,exhibiting a r.mar.able r.use and.stable *** wor. pr.vid.s a highly novel str.tegy to pr.par. r.cyclable composite ad.or.ent for.the LVX captur. fr.m aqueous solution.

关键词： Layer.d.d.uble hyd.oxid.s UiO-66-NH_(2) LVX Ad.or.tion

Exceptional points enhance sensing in silicon micr.mechanical r.sonator.

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Micr.systems & nanoengineer.ng 2024年第1期10卷 17-25页

作者： Man-na Zhang Lei d.ng Li-Feng Wang Qing-An Huang Key Labor.tor. of MEMS of the Ministr. of Ed.cation Southeast UniversityNanjing 210096China

Exceptional points(EPs)have r.cently emer.ed.as a new method.for.engineer.ng the r.sponse of open physical systems,that is,systems that inter.ct with the *** systems at the EPs exhibit a str.ng r.sponse to a small ***,we show a method.by which the sensitivity of silicon r.sonant sensor. can be enhanced.when oper.ted.at *** our.exper.ments,we use a pair.of mechanically coupled.silicon micr.mechanical r.sonator. constituting a par.ty-time(PT)-symmetr.c *** per.ur.ations intr.d.ced.on the mechanically coupled.spr.ng cause the fr.quency to split fr.m the EPs into the PT-symmetr.c r.gime without br.ad.ning the two spectr.m linewid.hs,and.this fr.quency splitting scales with the squar. r.ot of the per.ur.ation *** over.ll signal-tonoise r.tio is still gr.atly enhanced.although the measur.d.noise spectr.l d.nsity of the EP sensing scheme has a slight incr.ase compar.ble to the tr.d.tional *** r.sults pave the way for.r.sonant sensor. with ultr.high sensitivity.

关键词： r.sonant symmetr.c points

Ad.ances in self-assembly-based.cir.ular.y polar.zed.luminescent mater.als

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Science China Chemistr. 2024年第10期67卷 3247-3257页

作者： Bing-Hao Liu Yang Zong na Liu Zong-Quan Wu State Key Labor.tor. of Supr.molecular.Str.ctur. and.Mater.als College of ChemistryJilin UniversityChangchun 130012China The School of Phar.aceutical Sciences Jilin UniversityChangchun 130021China

Cir.ular.y polar.zed.luminescent(CPL)mater.als have gar.er.d.attention for.their.d.ver.e applications,includ.ng thr.e-d.mensional(3d.imaging,bio-imaging,chir.l sensing,and.other.emer.ing ***,the fabr.cation of CPL-activated.mater.als r.quir.d.the use of chir.l luminescent small *** intr.d.ction of the id.a of self-assembly has tr.nsfor.ed.the pr.d.ction of CPL-activated.mater.als,pr.vid.ng new and.pr.mising oppor.unities for.their.*** utilizing self-assembly,it is now feasible to pr.d.ce chir.l nano-assemblies with CPL activity not only fr.m chir.l molecules but also fr.m non-chir.l substances and.inor.anic *** ad.ition,self-assembly r.utes pr.vid. a way to incr.ase the asymmetr. factor.cr.ating possibilities for.ad.itional r.finement and.ad.ustment of CPL mater.al *** r.view offer. a summar. of the cur.ent pr.gr.ss and.d.velopments in the self-assembly of small molecules and.polymer.,with a specific emphasis on their.capacity to cr.ate or.enhance CPL in d.ffer.nt *** aim of this r.view is to inspir. inter.st in optical mater.als that ar. based.on the pr.nciples of self-assembly.

关键词： cir.ular.y polar.zed.luminescence photochemistr. self-assembly chir.l mater.als

Cage-confinement synthesis of MoC nanocluser. as efficient sulfiphilic and.lithiophilic r.gulator.for.super.or.Li–S batter.es

在线全文

学校读者我要写书评

暂无评论

r.r. Metals 2024年第2期43卷 624-634页

作者： Xing-Yuan Zhang Mei-na Lei Shan Tian Jian-Gan Wang State Key Labor.tor. of Solid.fication Pr.cessing Center for Nano Energy MaterialsSchool of Materials Science and EngineeringNorthwestern Polytechnical University and Shaanxi Joint Laboratory of Graphene(NPU)Xi’an710072China

High-ener.y-d.nsity Li-S batter.es ar. subjected.to ser.ous sulfur.d.activation and.shor. cycle lifetime caused.by und.sir.ble polysulfid. shuttle effect and.fr.ntic lithium d.nd.ite *** this wor.,a contr.llable cage-confinement str.tegy to fabr.cate molybd.num car.id.(MoC)nanocluster. as a high-efficient sulfiphilic and.lithiophilic r.gulator.to mitigate the for.id.ble issues of Li-S batter.es is *** sub-2 nm MoC nanocluster. not only guar.ntee r.bust chemisor.tion and.fast electr.catalytic conver.ion of polysulfid.s to enhance the sulfur.electr.chemistr.,but also homogenize Li^(+) flux to suppr.ss the lithium d.nd.ite *** a consequence,the MoC-mod.fied.separ.tor.end.ws the batter.es with boosted.r.action kinetics,pr.moted.sulfur.utilization,and.impr.ved.cycling stability.A r.ver.ible capacity of 701 mAh·g^(−1) at a high r.te of 5.0C and.a small d.cay r.te of 0.076%per.cycle at 1.0C over.600 cycles ar. *** stud. offer. a r.tional r.ute for.d.sign and.synthesis of bifunctional nanocluser. with both sulfiphilicity and.lithiophilicity for.high-per.or.ance Li-S batter.es.

关键词： Li-S batter.es nanocluster Electr.catalyst Polysulfid. shuttle Li d.nd.ites

The Ad.ustment Analysis Method.of the Active Sur.ace Antenna Based.on Convolutional Neur.l Networ.

在线全文

学校读者我要写书评

暂无评论

r.sear.h in Astr.nomy and.Astr.physics 2024年第6期24卷 294-306页

作者： You Ban Shang Shi na Wang Qian Xu Shufei Feng School of Mechanical Engineer.ng Xinjiang UniversityUrumqi 830017China Xinjiang Astr.nomical Obser.ator. Chinese Academy of SciencesUrumqi 830011China School of Mechanical Engineer.ng Dongguan University of TechnologyDongguan 523808China

Active sur.ace technique is one of the key technologies to ensur. the r.flector.accur.cy of the millimeter.submillimeter.wave lar.e r.flector.*** antenna is complex,lar.e-scale,and.high-pr.cision equipment,and.its active sur.aces ar. affected.by var.ous factor. that ar. d.fficult to compr.hensively d.al *** this paper.based.on the ad.antage of the d.ep lear.ing method.that can be impr.ved.thr.ugh d.ta lear.ing,we pr.pose the active ad.ustment value analysis method.of lar.e r.flector.antenna based.on d.ep *** method.constr.cts a neur.l networ. mod.l for.antenna active ad.ustment analysis in view of the fact that a lar.e r.flector.antenna consists of multiple panels spliced.*** on the constr.int that a single actuator.has to suppor. multiple panels(usually 4),an autonomously lear.ed.neur.l networ. emphasis layer.mod.le is d.signed.to enhance the ad.ptability of the active ad.ustment neur.l networ. *** classical 8-meter.antenna is used.as a case stud.,the actuator. have a mean ad.ustment er.or.of 0.00252 mm,and.the cor.espond.ng antenna sur.ace er.or.is0.00523 *** active ad.ustment r.sult shows the effectiveness of the method.in this paper.

关键词： techniques:r.d.r.astr.nomy telescopes method.:analytical method.:numer.cal

Id.ntification of in situ Gener.ted.Ir.n-Vacancy Ind.ced.Oxygen Evolution r.action Kinetics on Cobalt Ir.n Oxyhyd.oxid.

在线全文

学校读者我要写书评

暂无评论

Chinese Jour.al of Chemistr. 2024年第4期42卷 343-350页

作者： na Yao Juan Zhu Hongnan Jia Hengjiang Cong Wei Luo College of Chemistr. and.Molecular.Sciences Wuhan UniversityWuhanHubei430072 China

d.veloping highly efficient and.low-cost electr.catalysts towar.0} oxygen evolution r.action(OEr.is essential for.pr.ctical application in water.electr.lyzer. and.r.char.eable metal-air.*** Fe-based.oxyhyd.oxid.s ar. r.gar.0}d.as state-of-the-ar. non-noble OEr.electr.catalysts,the or.gin of per.or.ance enhancement d.r.ved.fr.m Fe d.ping r.mains a hot topic of consid.r.ble ***,we d.monstr.te that in situ gener.ted.Fe vacancies in the pr.stine CoFeOOH catalyst thr.ugh a pr.-conver.ion pr.cess d.r.ng alkaline OEr.r.sult fr.m d.namic Fe d.ssolution,id.ntifying the or.gin of Fe-vacancy-ind.ced.enhanced.OEr.*** functional theor.(d.T)calculations and.exper.mental r.sults includ.ng X-r.y absor.tion fine-str.ctur. spectr.scopy,in situ UV-Vis spectr.scopy,and.in situ r.man spectr.scopy r.veal that the Fe vacancies could.significantly pr.mote the d.band.center.and.valence states of ad.acent Co sites,alter.the active site fr.m Fe atom to Co atom,acceler.te the for.ation of high-valent active Co^(4+)species,and.r.d.ce the ener.y bar.ier.of the potential-d.ter.ining step,ther.by contr.bute to the significantly enhanced.OEr.per.or.ance.

关键词： CoFe oxyhyd.oxid. Oxygen evolution r.action Fe vacancy Electr.catalysis Kinetics r.action mechanisms