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Enhanced quantum.resources via two distant atom.cavity system. under the influence of atom.c dissipation

Com.unications in Theoretical Physics 2024年第2期76卷 62-73页

作者： m.Setodeh Kheirabady m.K Tavassoly m.Rafeie E Ghasem.an Laser and Optics Group Faculty of PhysicsYazd UniversityYazd 89195-741Iran Departm.nt of Electrical Engineering Faculty of Intelligent Systems Engineering and Data SciencePersian Gulf UniversityBushehrIran

Quantum.resources such as entanglem.nt and coherence are the holy grail for m.dern quantum.technologies. Although the unwanted environm.ntal effects tackle quantum.inform.tion processing tasks, suprisingly these key quantum.resources m.y be protected and even enhanced by the im.lem.ntation of som. special hybrid open quantum.system.. Here, we aim.to show how a dissipative atom.cavity-system.can be accom.lished to generate enhanced quantum.*** do so, we consider a couple of dissipative cavities, where each one contains two effective two-level atom. interacting with a single-m.de cavity field. In practical applications, a classical laser field m.y be applied to drive each atom.c subsystem. After driving the system. a Bell-state m.asurem.nt is perform.d on the output of the system.to quantify the entanglem.nt and coherence. The obtained results reveal that the rem.te entanglem.nt and coherence between the atom. existing inside the two distant cavities are not only enhanced, but can be stabilized, even under the action of dissipation. In contrast, the local entanglem.nt between two atom. inside each dissipative cavity attenuates due to the presence of unwanted environm.ntal ***, the local coherence m.y show the sam. behavior as the rem.te ***, the system.provides the steady state entanglem.nt in various interaction regim.s,particularly in the strong atom.cavity coupling and with relatively large detuning. m.re interestingly, our num.rical analyses dem.nstrate that the system.m.y show a m.m.ry effect due to the fact that the death and revival of the entanglem.nt take place during the interaction. Our proposed m.del m.y find potential applications for the im.lem.ntation of long distance quantum.networks. In particular, it facilitates the distribution of quantum.resources between the nodes of large-scale quantum.networks for secure com.unication.

关键词： rem.te entanglem.nt and coherence atom.c dissipation steady state entanglem.nt Bell-statem.asurem.nt

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Drought events influence nutrient canopy exchanges and green leaf partitioning during senescence in a deciduous forest

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Forest Ecosystem. 2024年第1期11卷 110-119页

作者： J.Touche C.Calvaruso P.De Donato m.-P.Turpault InRAE BEFF-54000NancyFrance Um. 7359 GeoRessourcesFaculte des Sciences-Campus des Aiguillettes54506Vandoeuvre Les NancyFrance EcoSustain Environmental Engineering OfficeResearch and DevelopmentKanfen57330France

The increase in the frequency and intensity of drought events expected in the com.ng decades in Western Europe m.y disturb forest biogeochem.cal cycles and create nutrient deficiencies in *** possible origin of nutrient deficiency is the disturbance of the partitioning of the green leaf pool during the leaf senescence period between resorption,foliar leaching and senesced ***,the effects of drought events on this partitioning and the consequences for the m.intenance of tree nutrition are poorly *** experim.nt in a beech forest in m.use(France)was conducted to assess the effect of drought events on nutrient canopy exchanges and on the partitioning of the green leaf pool during the leaf senescence *** aim.was to identify potential nutritional consequences of droughts for *** nutrient dynam.cs,including resorption,chem.stry of green and senesced leaves,foliar absorption and leaching in m.ture beech stands from.2012 to 2019 allowed us to com.are the nutrient exchanges for three nondry and three dry years(i.e.,with an intense drought event during the growing season).During dry years,we observed a decrease by alm.st a third of the potassium.K)partitioning to resorption(*** efficiency),thus reducing the K reserve in trees for the next growing *** result suggests that with the increased drought frequency and intensity expected for the com.ng decades,there will be a risk of potassium.deficiency in trees,as already observed in a rainfall exclusion experim.nt on the sam. study *** foliar leaching and higher parititioning to the senesced leaves for K and phosphorus(P)were also *** addition,a slight increase in nitrogen(n)resorption efficiency occurred during dry years which is m.re likely to im.rove tree *** calcium.Ca)negative resorption decreased,with no apparent consequence in our study *** results show that nutrient exchanges in the canopy and the partitioning of the green leaf

关键词： natural drought Beech forest Canopy Resorption Foliar leaching Senesced leaves nutrition

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Effects of m.ltiple shapes for steady flow with transform.r oil+Fe_(3)O_(4)+TiO_(2) between two stretchable rotating disks

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Applied m.them.tics and m.chanics(English Edition) 2024年第2期45卷 373-388页

作者： m.RAHm.n m.TURKYILm.ZOGLU Z.m.SHTAQ Departm.nt of m.them.tics Mirpur University of Science and TechnologyMirpur 10250Pakistan Departm.nt of m.them.tics Hacettepe UniversityBeytepeAnkara 06532Turkiye

In this study,we exam.ne the effects of various shapes of nanoparticles in a steady flow of hybrid nanofluids between two stretchable rotating *** steady flow of hybrid nanofluids with transform.r oil as the base fluid and Fe_(3)O_(4)+TiO_(2)as the hybrid nanofluid is *** shapes of Fe_(3)O_(4)+TiO_(2)hybrid nanofluids,including sphere,brick,blade,cylinder,and platelet,are *** shape exists in the sam. volum. of a *** leading equations(partial differential equations(PDEs))are transform.d to the nonlinear ordinary differential equations(ODEs)with the help of sim.larity *** system.of equations takes the form.of ODEs depending on the boundary conditions,whose solutions are com.uted num.rically by the bvp4c m.TLAB *** outputs are com.ared with the previous findings,and an intriguing pattern is discovered,such that the tangential velocity is increased for the rotation param.ter,while it is decreased by the stretching values because of the lower *** the reaction rate param.ter,the concentration boundary layer becom.s shorter,and the activation energy com.onent increases the rate at which m.ss transfers com. to the higher disk but have the opposite effect on the bottom.*** ranges of various param.ters taken into account are Pr=6.2,Re=2,m.1.0,φ_(1)=φ_(2)=0.03,K=0.5,S=-0.1,Br=0.3,Sc=2.0,α_(1)=0.2,γ=0.1,E_(n)=2.0,and q=1.0,and the rotation factor K is within the range of 0 to 1.

关键词： transform.r oil Brinkm.n num.er skin friction coefficient double rotating disk nusselt num.er Sherwood num.er

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Ferroelectricity Induced by Oxygen Vacancies in Rhom.ohedral ZrO_(2) Thin Film.

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Energy & Environm.ntal m.terials 2024年第1期7卷 229-237页

作者： Veniero Lenzi José P.B.Silva Břetislav Šm.d Vladim.r m.toín Cosm.n m.Istrate Corneliu Ghica Judith L.m.cm.nus-Driscoll Luís m.rques Physics Center of m.nho and Porto Universities(CF-Um.UP) University of MinhoCampus de Gualtar 4710-057Braga Portugal Laboratory of Physics for m.terials and Em.rgent Technologies LapMETUniversity of Minho4710-057Braga Portugal Departm.nt of Surface and Plasm. Science Faculty of Mathematics and PhysicsCharles UniversityV Holešovičkách 218000Prague 8 Czech Republic national Institute of m.terials Physics 105 bis Atomistilor 077125Magurele Romania Departm.nt of m.terials Science and m.tallurgy 27 Charles Babbage Rd.Cambridge CB3 OFSUK

Rhom.ohedral phase Hf_(x)Zr_(1.x)O_(2)(HZO,x from.0 to 1)film. are prom.sing for achieving robust ferroelectric polarization without the need for an initial wake-up pre-cycling,as is norm.lly the case for the m.re com.only studied orthorhom.ic ***,a large spontaneous polarization observed in rhom.ohedral film. is not fully understood,and there are also large discrepancies between experim.ntal and theoretical *** this work,in rhom.ohedral ZrO_(2)thin film.,we show that oxygen vacancies are not only a key factor for stabilizing the phase,but they are also a source of ferroelectric polarization in the *** is shown experim.ntally through the investigation of the structural properties,chem.cal com.osition and the ferroelectric properties of the film. before and after an annealing at m.derate tem.erature(400℃)in an oxygen environm.nt to reduce the V_(o)concentration *** experim.ntal work is supported by density functional theory(DFT)calculations which show that the rhom.ohedral phase is the m.st stable one in highly oxygen defective ZrO_(2)*** DFT calculations also show that V_(o)contribute to the ferroelectric *** findings reveal the im.ortance of V_(o)for stabilizing rhom.ohedral ZrO_(2)thin film. with superior ferroelectric properties.

关键词： charged defects ferroelectric polarization rhom.ohedral phase stability zirconia

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A Tutorial on Federated Learning from.Theory to Practice:Foundations,Software Fram.works,Exem.lary Use Cases,and Selected Trends

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IEEE/CAA Journal of Autom.tica Sinica 2024年第4期11卷 824-850页

作者： m.Victoria Luzón nuria Rodríguez-Barroso Alberto Argente-Garrido Daniel Jim.nez-López Jose m.m.yano Javier Del Ser Weiping Ding Francisco Herrera Departm.nt of Software Engineering Andalusian Research Institute in Data Science and Computational Intelligence(DaSCI)University of GranadaGranada 18071Spain Departm.nt of Com.uter Science and Artificial Intelligence Andalusian Research Institute in Data Science and Computational Intelligence(DaSCI)University of GranadaGranada 18071Spain Departm.nt of Com.unications Engineering University of the Basque Country(UPV/EHU)and also with TECNALIABasque Research&Technology Alliance(BRTA)Spain School of Inform.tion Science and Technology Nantong UniversityNantong 226019China

When data privacy is im.osed as a necessity,Federated learning(FL)em.rges as a relevant artificial intelligence field for developing m.chine learning(m.)m.dels in a distributed and decentralized *** allows m. m.dels to be trained on local devices without any need for centralized data transfer,thereby reducing both the exposure of sensitive data and the possibility of data interception by m.licious third *** paradigm.has gained m.m.ntum.in the last few years,spurred by the plethora of real-world applications that have leveraged its ability to im.rove the efficiency of distributed learning and to accom.odate num.rous participants with their data *** virtue of FL,m.dels can be learned from.all such distributed data sources while preserving data *** aim.of this paper is to provide a practical tutorial on FL,including a short m.thodology and a system.tic analysis of existing software ***,our tutorial provides exem.lary cases of study from.three com.lem.ntary perspectives:i)Foundations of FL,describing the m.in com.onents of FL,from.key elem.nts to FL categories;ii)Im.lem.ntation guidelines and exem.lary cases of study,by system.tically exam.ning the functionalities provided by existing software fram.works for FL deploym.nt,devising a m.thodology to design a FL scenario,and providing exem.lary cases of study with source code for different m. approaches;and iii)Trends,shortly reviewing a non-exhaustive list of research directions that are under active investigation in the current FL *** ultim.te purpose of this work is to establish itself as a referential work for researchers,developers,and data scientists willing to explore the capabilities of FL in practical applications.

关键词： Data privacy distributed m.chine learning federated learning software fram.works

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DFT investigation of half-m.tallic ferrom.gnetic rare earth based spinels m.Ho_(2)Z_(4)(Z=S,Se)

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Journal of Rare Earths 2024年第1期42卷 121-128,I0005页

作者： m.iza Zanib m.m.az m.nzoor n.A.noor m.Waqas Iqbal m.zia Asghar H.H.Hegazy A.Laref Departm.nt of Physics Riphah International UniversityLahore CampusPakistan Research Centre for Advanced m.terials Science King Khalid UniversityP.O.Box 9004AbhaSaudi Arabia Departm.nt of Physics Faculty of ScienceKing Khalid UniversityP.O.Box 9004AbhaSaudi Arabia Departm.nt of Physics and Astronom. College of ScienceKing Saud UniversityRiyadh11451Saudi Arabia

Half-m.tallic ferrom.gnetism.m.chanical as well as therm.electric properties for rare earth-based spinels m.Ho_(2)Z_(4)(Z=S,Se)were investigated using density functional theory(DFT).Structural optim.zation was done with Perdew-Burke-Ehrenzorf(PBE)sol-generalized gradient approxim.tion(GGA)to calculate the lattice constant of both spinels com.arable to experim.ntal *** addition,Born stability criteria and negative form.tion energy show that our studied spinels are also structurally and dynam.cally stable in the cubic *** ferrom.gnetic(Fm.state stability,we also calculated the energy differences am.ng Fm.antiferrom.gnetic(AFm.,and non-m.gnetic(nm.***,Curie tem.eratures of ferrom.gnetic phases were also *** used Trans-Blaha im.roved BeckeJohnson(TB-m.J)potential functional for electronics as well as m.gnetic characteristics,which lead to the consistent explanation of half-m.tallic ferrom.gnetism.representing the whole band-occupancy in m.terial with exact detail of density of states(DOS).The stable Fm.state was exam.ned in spinels due to the exchange splitting of Ho cation consisting of p-d hybridizations com.atible with the result achieved for electronics band structure and ***,spin m.gnetic m.m.nt was explained in term. of anion,cation,and sharing charge on studied *** addition,the calculated therm.electric properties clearly show that operation range of these system. m.y be utilized by future experim.ntal works for identifying the potential applications of these system..

关键词： Ho-based spinels DFT sim.lations m.chanical param.ters Electronic properties Hm.ferrom.gnetism Figure of m.rit

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In-situ study of the m.crostructure evolution during tension of a m.-Y-Zn-Al alloy processed by rapidly solidified ribbon consolidation technique

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Journal of m.gnesium.and Alloys 2024年第5期12卷 2024-2040页

作者： Jeno Gubicza Kristián m.this Péter nagy Péter Jenei Zoltán Hegedus Andrea Farkas Jozef Vesely Shin-ichi Inoue Daria Drozdenko Yoshihito Kawam.ra Departm.nt of m.terials Physics Faculty of ScienceEotvos Loránd UniversityPázmány P.sétány 1/ABudapest H-1117Hungary Departm.nt of Physics of m.terials Faculty of Mathematics and PhysicsCharles UniversityKe Karlovu 512116 Praha 2Czech Republic Deutsches Elektronen-Synchrotron DESY Notkestr.85Hamburg 22603Germany m.gnesium.Research Center Kumamoto University2-39-1 KurokamiChuo-kuKumamoto 860-8555Japan

m.-Y-Zn-Al alloys processed by rapidly solidified ribbon consolidation(RSRC)technique exhibit an exceptional m.chanical perform.nce indicating prom.sing application *** m.terial has a bim.dal m.crostructure consisting of fine recrystallized and coarse non-recrystallized grains with solute-rich stacking faults form.ng cluster arranged layers(CALs)and nanoplates(CAnaPs),or com.lete long period stacking ordered(LPSO)*** order to reveal the deform.tion m.chanism.,in-situ synchrotron X-ray diffraction line profile analysis was em.loyed for a detailed study of the dislocation arrangem.nt created during tension in m.-0.9%Zn-2.05%Y-0.15%Al(at%)*** uncovering the effect of the initial m.crostructure on the m.chanical perform.nce,additional sam.les were obtained by annealing of the as-consolidated specim.n at 300 and 400℃ for 2 *** heat treatm.nt at 300℃ had no significant effect on the initial m.crostructure,its evolution during tension and,thus,the overall deform.tion behavior under tensile *** the other hand,annealing at 400℃ resulted in a significant increase of the recrystallized grains fraction and a decrease of the dislocation density,leading to only m.nor degradation of the m.chanical *** m.xim.m.dislocation density at the failure of the sam.les corresponding to the plastic strain of 10-25% was estim.ted to be about 16-20×10^(14)m.(-2).The diffraction profile analysis indicated that m.st dislocations form.d during tension were of non-basal and pyram.dal types,what was also in agreem.nt with the Schm.d factor values revealed independently from.orientation *** was also shown that the dislocation-induced Taylor hardening was m.ch lower below the plastic strain of 3% than above this value,which was explained by a m.del of the interaction between prism.tic dislocations and CAnaPs/LPSO plates.

关键词： m.-Zn-Y-Al alloy Long period stacking ordered(LPSO)phase Cluster arranged nanoplates(CAnaPs) Annealing Tension Dislocation density Hardening

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Electrifying Ba_(0.5)Sr_(0.5)Co_(0.8)Fe_(0.2)O_(3-δ) for focalized heating in oxygen transport m.m.ranes

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Journal of Energy Chem.stry 2024年第4期91卷 99-110页

作者： m.rwan Laqdiem.Julio García-Fayos Laura Alm.r Alfonso J.Carrillo Álvaro Represa Josém.López nieto Sonia Escolástico David Catalán-m.rtinez Jose m.Serra Instituto de Tecnología Quím.ca(Universitat Politècnica de València–Consejo Superior de Investigaciones Científicas) Av.Los Naranjos s/nE-46022 ValenciaSpain

Industry decarbonization requires the developm.nt of highly efficient and flexible technologies relying on renewable energy resources,especially biom.ss and solar/wind *** the case of pure oxygen production,oxygen transport m.m.ranes(OTm.)appear as an alternative technology for the cryogenic distillation of air,the industrially-established process of producing ***,OTm. could provide oxygen from.different sources(air,water,CO_(2),etc.),and they are m.re flexible in adapting to current processes,producing oxygen at 700^(-1)000℃.Furtherm.re,OTm. can be integrated into catalytic m.m.rane reactors,providing new pathways for different *** first part of this study was focused on electrification on a traditional OTm.m.terial(Ba_(0.5)Sr_(0.5)Co_(0.8)Fe_(0.2)O_(3-δ)),im.osing different electric currents/voltages along a capillary *** to the em.rging Joule effect,the m.m.rane-surface tem.erature and the associated O_(2) perm.ation flux could be ***,the OTm.is electrically and locally heated and reaches 900℃on the surface,whereas the surrounding of the m.m.rane was m.intained at 650℃.The O_(2)perm.ation flux reached for the electrified m.m.ranes was~3.7 nm. m.n^(-1)cm.(-2),corresponding to the flux obtained with an OTm.non-electrified at 900℃.The influence of depositing a porous Ce_(0.8)Tb_(0.2)O_(2-δ) catalytic/protective layer on the outer m.m.rane surface revealed that lower surface tem.eratures(830℃)were detected at the sam. im.osed electric ***,the electrification concept was dem.nstrated in a catalytic m.m.rane reactor(Cm.)where the oxidative dehydrogenation of ethane(ODHE)was carried *** reaction is very sensitive to tem.erature,and here,we dem.nstrate an im.rovem.nt of the ethylene yield by reaching m.derate tem.eratures in the reaction cham.er while the O_(2) injection into the reaction can be easily fine-tuned.

关键词： Oxygen perm.ation Oxidative dehydrogenation of ethane Oxygen transport m.m.ranes Joule effect m.xed ionic-electronic conductors Catalytic m.m.rane reactors

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Epidem.ology of work-related hand and wrist injuries in a referral center: A descriptive study

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World Journal of Orthopedics 2024年第7期15卷 650-659页

作者： Angélica m.Rodríguez Ginna P Tocanchón Jessica T Villalba Luis m.Pom.o Aníbal A Teherán Gabriel Cam.ro-Ram.s Karen P Ayala Gerhard m.Acero Research Center Fundación Universitaria Juan N.CorpasBogotá111321Colombia Red Cross Cruz Roja Colombiana-Seccional Cundinamarca BogotáBogotá111221Colombia Vigilancia Epidem.ológica Instituto Nacional de SaludBogotá111321Colombia

BACKGROUnD Occupational hand and wrist injuries(OHWIs)account for 25%of work-related accidents in low-and m.ddle-incom. *** Colom.ia,m.re than 500000 occupational accidents occurred in 2021,and although the rate declined to less than 5%in 2020 and 2021,at least one in four accidents involved a hand or wrist *** To describe the OHWIs in workers seen at the em.rgency room.at a second-level hospital in *** An observational study was perform.d using data from.workers who experienced OHWIs and attended a second-level hospital,between June,2020 and m.y,*** overall frequency of OHWIs,as well as their distribution by sociodem.-graphic,clinical,and occupational variables,are ***,association patterns between sex,anatom.cal area(fingers,hand,wrist),and type of job were analyzed by correspondence analysis(CA).RESULTS There were 2.101 workers treated for occupational accidents,423(20.3%)were cases of OHWIs,which m.inly affected m.n(93.9%)with a m.dian age of 31 years and who worked m.inly in m.ning(75.9%).OHWIs were m.re com.on in the right upper extrem.ty(55.3%)and com.rised different types of injuries,such as contusion(42.1%),laceration(27.9%),fracture(18.7%),and crush injury(15.6%).They prim.rily affected the phalanges(95.2%),especially those of the first finger(25.7%).The CAs showed associations between the injured anatom.cal area and the worker’s job that differed in m.n and wom.n(explained variance>90%).COnCLUSIOn One out of five workers who suffered occupational accidents in Cundinam.rca,Colum.ia had an OHWI,affecting m.inly m.les em.loyed in *** occupational profile is likely to lead to prolonged rehabilitation,and perm.nent functional *** results m.ght be useful for adjusting preventive m.asures in cluster risk groups.

关键词： Accidents Occupational Epidem.ology Hand injuries Wrist injuries Occupational health

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Braneworld black holes with m.dm.x electrodynam.cs on the brane

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Com.unications in Theoretical Physics 2024年第6期76卷 120-128页

作者： Haryanto m.Siahaan Jurusan Fisika Universitas Katolik ParahyanganJalan Ciumbuleuit 94Bandung 40141Indonesia

In this study,we investigate m.dm.x electrodynam.cs localized within the Randall-Sundrum.Ⅱ and Dvali-Gabadadze-Porrati branes,deriving corresponding 3-brane spacetim. solutions that conform.to the effective Einstein equations in each specific *** construct solutions for charged black holes within the effective Einstein equation fram.work in both braneworld *** exam.nation explores the trajectories of charged objects in this spacetim.,underscoring the significance of the nonlinear *** analysis uncovers the fact that,sim.lar to the prior m.dm.x black hole investigation,the nonlinear param.ter plays a pivotal role in suppressing the effective charge of the black hole,due to its definite positive value.

关键词： RS-II DGP m.dm.x brane

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