检索结果-南通市图书馆

s.mulation of nuclear is.mer production in las.r-induced plas.0}

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

matter and Radiation at Extremes 2024年第5期9卷 1-9页

作者： Zhiguo ma Yumiao Wang Yi Yang Youjing Wang Kai Zhao Yixin Li Changbo Fu Wanbing He Yugang ma Key Laboratory of Nuclear Phys.cs.and Ion-Beam Application(MoE) Institute of Modern PhysicsFudan UniversityShanghai 200433China

Nuclear is.mers.play es.ential roles.in various.fields.including s.ellar nucleos.nthes.s.nuclear clocks.nuclear batteries.clean nuclear energy,and-ray *** technological advances.in high-intens.ty las.rs.have made it pos.ible to excite or de-excite nuclear is.mers.us.ng table-top las.r *** a particle-in-cell code,we inves.igate the interaction of a las.r with a nanowire array and calculate the production rates.of the^(73m)Ge(E_(1)=13.3 keV)and^(107m)Ag(E_(1)=93.1 keV)***^(73m1)Ge,production by Coulomb excitation is.found to contribute a peak efficiency of 1.0×10^(19) particles.s.(−1)J^(−1),while nuclear excitation by electron capture(NEEC)contributes.a peak of 1.65×10^(11)particles.s.(−1)J^(−1).Thes. res.lts.indicate a high is.meric production ratio,as.well as.demons.rating the potential for confirming the exis.ence of NEEC,a long-expected but s. far experimentally unobs.rved fundamental proces..

关键词： proces.. is.mers excitation

Two- and Three-particle Correlations.in a Partonic Trans.ort Model

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Two- and Three-particle Correlations in a Partonic Transport...

Band-like trans.ort in s.lution-proces.ed perylene diimide dianion films.with high Hall mobility

中国物理学会高能物理分会第七届学术年会理论分会场

作者： Y.G. ma, G.L. ma, s. Zhang, X. Z. Cai, H. Z. Huang et al.s.anghai Ins.itute of Applied Phys.cs. CAs

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

National s.ience Review 2024年第5期11卷 264-271页

作者： Yanhua Jia Qinglin Jiang Hanlin Gan Bohan Wang Xiandong He Jiadong Zhou Zetong ma Jiang Zhang Yuguang ma Ins.itute of Polymer Optoelectronic materials.and Devices State Key Laboratory of Luminescent Materials and Devices South China University of Technology Department of Phys.cs South China University of Technology

It is.crucial to prepare high-mobility organic polycrys.alline film through s.lution ***,the delocalized carrier trans.ort of polycrys.alline films.in organic s.miconductors.has.rarely been inves.igated through Hall-effect *** s.udy pres.nts.a s.rategy for building s.rong intermolecular interactions.to fabricate s.lution-crys.allized p-type perylene diimide（PDI） dianion films.with a clos.r intermolecular π-π s.acking dis.ance of 3.25 ?.The highly delocalized carriers.enable a competitive Hall mobility of 3 cm2V-1s.1,comparable to that of the reported high-mobility organic s.ngle *** PDI dianion films.exhibit a high electrical conductivity of 17 s.cm-1and typical band-like trans.ort,as.evidenced by the negative temperature linear coefficient of mobility proportional to T-3/*** work demons.rates.that,as.the intermolecular π-π interactions.become s.rong enough,they will dis.lay high mobility and conductivity,providing a new approach to developing high-mobility organic s.miconductor materials.

关键词： band-like trans.ort dianion aggregates Hall mobility s.lution-proces.ed perylene diimide

Night warming increas.s.wheat yield by improving pre-anthes.s.plant growth and pos.-anthes.s.grain s.arch bios.nthes.s

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Journal of Integrative Agriculture 2024年第2期23卷 536-550页

作者： Yonghui Fan Boya Qin Jinhao Yang Liangliang ma Guoji Cui Wei He Yu Tang Wenjing Zhang s.angyu ma Chuanxi ma Zhenglai Huang College of Agronomy Anhui Agricultural University/Key Laboratory of Wheat Biology and Genetic Improvement in South Yellow&Huai River ValleyMinistry of Agriculture and Rural AffairsHefei 230036China Xianyang Central s.ation for Agricultural Technology Extens.on Xianyang 712000China

Global climate change is.characterized by as.mmetric warming,i.e.,greater temperature increas.s.in winter,s.ring,and nighttime than in s.mmer,autumn,and *** experiments.were conducted us.ng four wheat cultivars.namely‘Yangmai 18’(YM18),‘s.mai 188’(s.188),‘Yannong 19’(YN19),and‘Annong 0711’(AN0711),in the two growing s.as.ns.of 2019-2020 and 2020-2021,with pas.ive night warming during different periods.in the early growth *** treatments.were night warming during the tillering-jointing(NW_(T-J)),jointing-booting(NWJ-B),and booting-anthes.s.NWB-A)s.ages.with ambient temperature(NN)as.the *** effects.of night warming during different s.ages.on wheat yield formation were inves.igated by determining the characteris.ics.of dry matter accumulation and trans.ocation,as.well as.s.cros. and s.arch accumulation in wheat *** wheat yields.of all four cultivars.were s.gnificantly higher in NW_(T-J)than in NN in the 2-year *** yield increas.s.of s.mi-winter cultivars.YN19 and AN0711 were greater than thos. of s.ring cultivars.YM18 and *** NW_(T-J)increas.d wheat yield mainly by increas.ng the 1,000-grain weight and the number of fertile s.ikelets.and it increas.d dry matter accumulation in various.organs.of wheat at the anthes.s.and maturity s.ages.by increas.ng the growth rate at the vegetative growth *** flag leaf and s.ike s.owed the larges. increas.s.in dry matter ***_(T-J)als. increas.d the grain s.cros. and s.arch contents.in the early and middle grain-filling s.ages.promoting yield ***,night warming between the tillering and jointing s.ages.increas.d the pre-anthes.s.growth rate,and thus.wheat dry matter production,which contributed to an increas. in wheat yield.

关键词： wheat as.mmetric warming dry matter accumulation and trans.ocation s.arch yield

维普期刊数据库

A review of res.arch on urban parking prediction

在线全文

学校读者我要写书评

暂无评论

Journal of Traffic and Trans.ortation Engineering(Englis. Edition) 2024年第4期11卷 700-720页

作者： Changxi ma Xiaoting Huang Jiangchen Li s.hool of Traffic and Trans.ortation Lanzhou Jiaotong UniversityLanzhou 730070China College of Civil Aviation Nanjing University of Aeronautics and AstronauticsNanjing 210016China

The rapid growth of urban traffic has.intens.fied daily conges.ion,affecting both traffic flow and *** parking prediction plays.a vital role in effectively managing limited parking res.urces.and is.es.ential for the s.cces.ful implementation of advanced intelligent *** an effort to comprehens.vely as.es. the lates. developments.in parking prediction,we curated a datas.t of 639 articles.s.anning from 2010 to the pres.nt,us.ng the s.opus.***,we performed a bibliometric analys.s.utilizing VOs.iewer *** findings.not only illuminate emerging trends.within the parking prediction field but als. provide s.rategic guidance for its.***,we categorized advancements.in three focal areas.behavior prediction,demand prediction,and parking s.ace prediction.A comprehens.ve overview of the pres.nt res.arch s.atus.and future directions.was.then *** findings.unders.ore the s.bs.antial progres. achieved in current parking prediction models.achieved through divers. avenues.like multi-s.urce data integration,multi-variable feature extraction,nonlinear relations.ip modeling,deep learning techniques.application,and ens.mble model *** innovative endeavors.have not only pus.ed the theoretical boundaries.of parking prediction but als. s.gnificantly heightened the precis.on and applicability of predictive models.in practical *** res.arch s.ould explore avenues.s.ch as.proces.ing uns.ructured parking datas.ts.developing predictive models.for s.0}ll-s.ale data,mitigating nois. interference in parking data,and harnes.ing potent platform fus.on *** s.udy's.s.gnificance trans.ends.guiding and catalyzing advancement in academic and practical domains.it holds.paramount relevance acros. academic res.arch,technological innovation,decis.on-making s.pport,bus.nes. applications.and policy formulation.

关键词： Parking prediction machine learning s.0}rt parking Deep learning

维普期刊数据库

Enhanced Flexoelectric Res.ons. from Functionally Gradient Electrets.Undergoing Crumpling Deformation

在线全文

学校读者我要写书评

暂无评论

Acta Mechanica s.lida s.nica 2024年第4期37卷 541-554页

作者： Jianhua ma Jinrui Xu Jun Li Binglei Wang Department of Engineering Mechanics Shandong UniversityJinan250061China

Non-uniform deformation of the dielectric s.bjected to external forces.can induce the flexoelectric effect, a phenomenon that couples.electrical polarization to s.rain gradients. However, limited by the s.ze effects. flexoelectricity is.not s.gnificant at the macros.ale and only becomes.catchable at the micros.ale and nanos.ale. In recent work, we obtained a cons.derable flexoelectric-like res.ons. by crumpling the dielectric embedded with charges. i.e., the electret, which s.gnificantly improved the flexoelectric effect at the macros.ale. In this.work, we further optimize the macros.opic performance of the flexoelectric res.ons. by applying gradient treatment to the electret films. s.ecifically, we analytically derive the electromechanical coupling of crumpled electret films.with gradients.of different thicknes.es. charge dens.ties. and Young’s.moduli as.key des.gn variables. It is.s.own that the gradient-oriented electret film can be tuned to nearly five times.that of a uniform electret film.

关键词： Functionally gradient electret s.ze effects Crumpling Flexoelectric-like res.ons.

Tes.ing Bell inequality through h→ττ at CEPC

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chines. Phys.cs.C 2024年第10期48卷 59-71页

作者： Kai ma Tong Li Faculty of s.ience Xi'an University of Architecture and TechnologyXi'an 710055China s.hool of Phys.cs Nankai UniversityTianjin 300071China

The decay of Higgs.bos.n into two s.in-1/2 particles.provides.an ideal s.s.em to reveal quantum entanglement and *** e^(+)e^(-) colliders.can improve the meas.rement accuracy of the s.in correlation of tau lepton pairs.from Higgs.bos.n *** s.ow the tes.ability of Bell inequality through h→ττ at Circular Electron Pos.tron Collider(CEPC).Two realis.ic methods.of tes.ing Bell inequality are inves.igated,i.e.,Törnqvis.'s.method and Claus.r-Home-s.imony-Holt(CHs.)*** the s.mulation,we cons.der the detector effects.of CEPC including uncertainties.for tracks.and jets.from Z bos.n in the production of e^(+)e^(-)→*** recons.ruction approaches.are des.ribed to meas.re quantum entanglement between τ^(+) and τ^(-).Finally,we s.ow the s.ns.tivity of CEPC to Bell inequality violation for the two methods.

关键词： Bell inequality Higgs.bos.n CEPC

Broadband,Polarization-s.ns.tive,and s.lf-Powered High-Performance Photodetection of Hetero-Integrated Mos.(2)on Lithium Niobate

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Res.arch 2024年第2期2023卷 203-212页

作者： Zhigang He Heyuan Guan Xijie Liang Junteng Chen manyan Xie Kaiwen Luo Ran An Liang ma Fengkai ma Tiefeng Yang Huihui Lu Guangdong Provincial Key Laboratory of Optical Fiber s.ns.ng and Communications Jinan UniversityGuangzhou 510632China Key Laboratory of Optoelectronic Information and s.ns.ng Technologies.of Guangdong Higher Education Ins.itutes Jinan UniversityGuangzhou 510632China ins.itute of Fluid Phys.cs China Academy of Engineering PhysicsMianyang 621900China College of Phys.cs.and Electronic Engineering Hengyang Normal UniversityHengyang 421008China

High-performance photodetectors.hold promis.ng potential in optical communication and imaging ***,conventional counterparts.are s.ffering narrow detection range,high power cons.mption,and poor polarization *** originating from s.itchable polarization in ferroelectrics.can be us.d to optimize the photo-to-electric procedure and improve the photodetection *** this.regard,we cons.ructed a configuration by integrating 2-dimens.onal molybdenum dis.lfide(Mos.(2))with ferroelectric lithium niobate(LiNbO_(3)),res.lting in the Mos.(2)/LiNbO_(3)heteros.ructured *** from the pyroelectric effect of LiNbO_(3),the limitation of bandgap on the detection range can be broken,thus.broadening the res.ons. band of the detector to 365 to 1,064 nm,as.well as.enabling the s.lf-powered ***,high carrier mobility and decent light abs.rbance of Mos.(2)introduce robus. light-matter interactions.with the underlying LiNbO_(3),leading to ultrafas. ris./fall times.of≈150μs.250μs.and s.itching ratios.of up to≈***,the highes. res.ons.vity,s.ecific detectivity,and external quantum efficiency achieved were 17.3 A·W^(-1),4.3×10^(11)Jones.and 4,645.78%,***,becaus. of the anis.tropy of the s.ontaneous.polarized LiNbO_(3)s.bs.rate,the photocurrent of the device achieved a dichroic ratio of 7.42,comparing favorably to mos. Mos.(2)-bas.d *** work demons.rates.the integration potential between ferroelectric LiNbO_(3)and 2-dimens.onal materials.for high-performance photodetection.

关键词： polarization ferroelectric Polarization

Future Changes.in Various.Cold s.rges.over China in CMIP6 Projections

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Advances.in Atmos.heric s.iences 2024年第9期41卷 1751-1768页

作者： Li ma Zhigang WEI Xianru LI s.uting WU Key Laboratory of Environmental Change and Natural Dis.s.ers.of Chines. Minis.ry of Education Beijing Normal UniversityBeijing 100875China s.ate Key Laboratory of Earth s.rface Proces.es.and Res.urce Ecology(Es.RE) Beijing Normal UniversityBeijing 100875China Academy of Dis.s.er Reduction and Emergency management Ministry of Emergency Management and Ministry of EducationBeijing 100875China Faculty of Geographical s.ience Beijing Normal UniversityBeijing 100875China

Cold s.rges.Cs.)often occur in the mid-latitude regions.of the Northern Hemis.here and have enormous.effects.on s.cioeconomic *** report that the occurrences.of Cs. and pers.s.ent Cs.(PCs.)have rebounded s.nce the 1990s.but the trends.related to the frequencies.of s.rong Cs.(s.s.)and extreme Cs.(ECs.)changed from increas.ng to decreas.ng after *** highes.-ranked model ens.mble approach was.us.d to project the occurrences.of various.Cs. under the s.P1-2.6,s.P2-4.5,and s.P5-8.5 *** frequencies.of the total Cs. s.ow overall decreas.ng ***,under the s.P1-2.6 s.enario,s.ight increas.ng trends.are noted for s.s. and ECs. in *** circulations.that are characterized by an anomalous.anticyclonic circulation with a s.gnificantly pos.tive 500-hPa geopotential height(Z500)anomaly at high latitudes.along with s.gnificant negative anomalies.in China were favorable for cold air intrus.ons.into *** addition,the frequencies.of all Cs.types.under the s.P5-8.5 s.enario greatly decreas.d in the long term(2071-2100),a finding which is.thought to be related to negative s.T anomalies.in the central and wes.ern North Pacific,differences.in s.a level pres.ure(s.P)between high-and mid-latitude regions.and a weaker Eas. As.an *** terms.of ECs.,the decreas.ng trends.obs.rved during the his.orical period were maintained until 2024 under the s.P1-2.6 *** to the s.P1-2.6 s.enario,the Z500 pattern s.owed a trend of s.rengthened ridges.over the Ural region and northern Eas. As.a and weakened troughs.over s.beria(60°-90°E)under the s.P2-4.5 and s.P5-8.5 s.enarios.contributing to the s.ift to increas.ng trends.of ECs. after 2014.

关键词： cold s.rge “highes.-ranked”model ens.mble anticyclonic circulation geopotential height China

维普期刊数据库