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Journal of System. Science & Com.lexity 2024年第1期37卷 136-151页

作者： PAN Zini CHEN ben m Departm.nt of m.chanical and Autom.tion Engineering The Chinese University of Hong KongHong KongChina

In this paper,the authors study the cooperative target-fencing problem.for n-dim.nsional system. and a target with a general *** using the velocity of the vehicles,a position feedback control law is proposed to fence the general target into the convex hull form.d by the ***,the dynam.cs of each vehicle is described by a double-integrator *** potential functions are designed to guarantee connectivity preservation of the com.unication network and collision avoidance am.ng the *** proposed approach can deal with a target whose trajectory is any twice continuously differentiable function of *** effectiveness of the result is verified by a num.rical exam.le.

关键词： m.lti-agent system. networked system. target fencing

A hierarchical m.lti-UAV cooperative fram.work for infrastructure inspection and reconstruction

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Control Theory and Technology 2024年第3期22卷 394-405页

作者： Chuanxiang Gao Xinyi Wang Xi Chen ben m.Chen Departm.nt of m.chanical and Autom.tion Engineering The Chinese University of Hong KongHong KongShatinNTChina

Unm.nned aerial vehicles(UAVs)are em.rging as a powerful tool for inspections and repair works in large-scale and unstructured 3D infrastructures,but current approaches take a long tim. to cover the entire *** using UAVs for inspections and repair works puts forward a requirem.nt of im.roving tim. efficiency in large-scale and cluster *** paper presents a hierarchical m.lti-UAV cooperative fram.work for infrastructure inspection and reconstruction to balance the workload and reduce the overall task com.letion *** proposed fram.work consists of two stages,the exploration stage and the exploitation stage,resolving the task in a sequential *** the exploration stage,the density m.p is developed to update global and local inform.tion for dynam.c load-balanced area partition based on reconstructability and relative positions of UAVs,and the Voronoi-based planner is used to enable the UAVs to reach their best *** obtaining the global m.p,viewpoints are generated and divided while taking into account the battery capacity of each ***,a shortest path planning m.thod is used to m.nim.ze the total traveling cost of these viewpoints for obtaining a high-quality *** experim.nts are conducted in both a sim.lated and real environm.nt to show the tim. efficiency,robustness,and effectiveness of the proposed ***,the whole system.is im.lem.nted in real applications.

关键词： m.lti-UAV Coverage path planning Infrastructure inspection and reconstruction

Intraocular pressure before and after capsulorhexis using two viscoelastic substances and two surgical approaches in enucleated porcine eyes

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International Journal of Ophthalm.logy(English edition) 2024年第6期17卷 1156-1160页

作者： Chiraz ben Abdallah Walter Sekundo m.rkus SLadewig Daniel m.Handzel Augenzentrum.Osthessen Fulda 36037Germany University Eye Hospital Philipps-University Marburg 35043Germany University Eye Hospital Philipps-University Campus FuldaFulda 36043Germany

AIm.To investigate the influence of ophthalm.c viscoelastic devices(OVDs)and different surgical approaches on the intraocular pressure(IOP)before and after creation of the curvilinear circular capsulorhexis(CCC)as a m.asure for anterior cham.er stability during this ***:Prospective experim.ntal WetLab study carried out on enucleated porcine *** was m.asured before and after CCC with the iCare Rebound tonom.ter(iCare ic200;iCare Finland Oy,Vantaa,Finland).The OVDs used were a cohesive one[Z-Hyalin,Carl Zeiss m.ditec AG,Germ.ny;hyaluronic acid(HA)]and a dispersive[Z-Celcoat,Carl Zeiss m.ditec AG,Germ.ny;hydroxy propylm.thylcellulosis(HPm.)].The CCC was created using Utrata forceps or 23 g m.croforceps in different com.inations with the ***:Using the Utrata forceps the IOP dropped from.63.65±6.44 to 11.25±3.63 m. Hg during the *** use of different OVDs m.de no *** the 23 g m.croforceps the IOP dropped from.65.35±8.15 to 36.55±6.09 m. *** difference between IOP drop using either Utrata forceps or 23 g m.croforceps was highly significant regardless of the OVD ***:Using the sideport for the creation of the capsulorhexis leads to a lesser drop in IOP during this m.neuver com.ared to the m.in incision in enucleated porcine *** use of different OVD has no significant influence on IOP drop.

关键词： cataract surgery ophthalm.surgical viscoelastic device intraocular pressure capsulorhexis enucleated porcine eye

Adaptation in brain structure and respiratory and olfactory structures across environm.ntal gradients in African and North Am.rican m.roid rodents

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Integrative Zoology 2024年第1期19卷 165-181页

作者： Peter J.TAYLOR Aluwani NENGOVHELA Christiane DENYS Graham.R.SCOTT catherine m.IVY Departm.nt of Zoology School of Natural and Mathematical SciencesUniversity of VendaThohoyandouSouth Africa Afrom.ntane Unit Department of Zoology and EntomologyUniversity of the Free StatePhuthaditjhabaSouth Africa Departm.nt of m.m.alogy National MuseumBloemfonteinSouth Africa Institut de Systém.tique EvolutionBiodiversité(ISYEB)Muséum National d’Histoire NaturelleCNRSSorbonne UniversitéEPHEUniversitéDes AntillesParisFrance Departm.nt of Biology McMaster UniversityHamiltonOntarioCanada Guglielm. and Shoem.ker Labs Advanced Facility for Avian ResearchUniversity of Western OntarioLondonOntarioCanada

m.rphom.tric studies of 3D m.cro CT-scanned im.ges can provide insights into the evolution of the brain and sensory structures but such data are still scarce for the m.st diverse m.m.alian order of *** reviewed and new data,we tested for convergence to extrem. aridity and high elevation in the sensory and brain m.rphology of rodents,from.m.rphom.tric data from.m.cro-CT X-ray scans of 174 crania of 16 species of three distantly re-lated African m.rid(soft-furred m.ce,Praom.ini,lam.nate-toothed rats,Otom.ini,and gerbils,Gerbillinae)clades and one North Am.rican cricetid(deer m.ce and white-footed m.ce,Perom.scus)*** studies dem.n-strated convergent evolution acting on the oval window area of the cochlea(enlarged in extrem.ly arid-adapted species of Otom.ini and Gerbillinae)and on endocranial volum.(reduced in high elevation taxa of Otom.ini and Perom.scus).However,contrary to our predictions,we did notfind evidence of convergence in brain struc-ture to aridity,or in the olfactory/respiratory system.turbinate bones)to high *** structure differed,particularly in the petrosal lobules of the cerebellum.and the olfactory bulbs,between Otom.ini and Gerbillinae,with extrem. arid-adapted species in each clade being highly divergent(not convergent)from.other species in the sam. *** observed greater“packing”of the m.xillary turbinate bones,which have im.ortant respiratory functions,in Perom.scus m.ce from.high and low elevations com.ared to the high-elevation African Praom.ini,but m.re com.lex patterns within Perom.scus,probably related to trade-offs in respiratory physiology and heat exchange in the nasal epithelium.associated with high-elevation adaptation.

关键词： 3D m.rphom.trics Africa brain size North Am.rica Rodentia sensory evolution

Canine on the Couch:The New Canary in the Coal m.ne for Environm.ntal Health Research

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Environm.nt & Health 2024年第8期2卷 517-529页

作者： catherine F.Wise m.tthew Breen Heather m.Stapleton Nicholas School of the Environm.nt Duke UniversityDurhamNorth Carolina 27708United States Duke Cancer Institute DurhamNorth Carolina 27710United States Departm.nt of m.lecular Biom.dical Sciences College of Veterinary MedicineNorth Carolina State University1060 William Moore DriveRaleighNorth Carolina 27607United States Com.arative m.dicine Institute North Carolina State UniversityRaleighNorth Carolina 27607United States Center for Hum.n Health and the Environm.nt North Carolina State UniversityRaleighNorth Carolina 27607United States

Hum.n health is intim.tely connected and tied to the health of our environm.nt and ecosystem.with only a very sm.ll fraction of the risk for chronic diseases explained by genetics *** anim.ls are prone to disease types that are shared with people,including cancers and endocrine disorders,reinforcing the thought that environm.ntal factors contribute to the risks for chronic *** factors include air and water pollution and the built *** such,there is increasing interest in pursuing research with com.anion anim.ls,and specifically dogs,as sentinel species to inform.com.arative health assessm.nts and identify risk factors for *** the canine diseases for which environm.ntal exposure research has been published,cancers have received the m.st *** review sum.arizes two m.in aspects of this com.arative approach:(1)cancers that occur in dogs and which are sim.lar to hum.ns and(2)research investigating environm.ntal exposures and health outcom.s in *** goal of this review is to highlight the diverse conditions in which pet dogs m.y provide unique perspectives and advantages to exam.ne relationships between environm.ntal exposures and health outcom.s,with an em.hasis on chem.cal pollution and ***,this review seeks to raise awareness and stim.late discussion around the best practices for the use of com.anion anim.ls as environm.ntal health sentinels.

关键词： sentinels dogs environm.ntal health com.arative oncology cancer alternative m.dels environm.ntal exposure

Natural Convection of a Power-Law Nanofluid in a Square Cavity with a Vertical Fin

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Fluid Dynam.cs & m.terials Processing 2024年第9期20卷 2091-2108页

作者： Am.ra m.hadbi m.ham.ed El Ganaoui Haïkel ben Ham.d Am.nallah Guizani Khalid Chtaibi LERm.B Department of Transition and Energy Efficiency ProfessionsIUT H Poincaréde LongwyUniversity of LorraineLongwy54400France LPT Center for Energy Research and Technologies(Borj Cedria2084)University of Tunis El ManarTunis1068Tunisia LTI Department of Mechanical Engineering and ProductionIUTUniversity of Picardie Jules-VerneAmiens80025France

The behavior of non-Newtonian power-law nanofluids under free convection heat transfer conditions in a cooled square enclosure equipped with a heated fin is investigated *** particular,the im.act of nanofluids,com.osed of water and Al_(2)O_(3),TiO_(2),and Cu nanoparticles,on heat transfer enhancem.nt is *** aim.of this research is also to analyze the influence of different param.ters,including the Rayleigh num.er(Ra=10^(4)-10^(6)),nanoparticle volum. fraction(φ=0%-20%),non-Newtonian power-law indexes(n=0.6-1.4),and fin dim.nsions(Ar=0.3,0.5,and 0.7).Stream.ines and isotherm. are used to depict flow and related heat transfer *** indicate that therm.l perform.nce im.roves with increasing Rayleigh num.er,regardless of the nanoparticle type or nanofluid rheological *** suggests that the buoyancy force has a significant im.act on heat transfer,particularly near the heat *** Nusselt num.er is m.re sensitive to variations in Cu nanoparticle volum. fractions com.ared to Al₂O₃and TiO₂.m.reover,the average Nusselt num.ers for power-law nanofluids with n1)are greater(sm.ller)than for Newtonian fluids due to the decrease(increase)in viscosity with increasing(decreasing)shear rate,at the sam. values of Rayleigh num.er Ra owing to the am.lification(attenuation)of the convective ***,the m.st substantial enhancem.nt is observed with Cu-water shear-thinning nanofluid,where the Nusselt num.er increases by 136%when changing from.Newtonian to shear thinning behavior and by 154.9%when adding 16%nanoparticle volum. ***,an even larger increase of 57%in the average Nusselt num.er is obtained on increasing the fin length from.0.3 to 0.7.

关键词： Heat transfer nanofluid non-Newtonian fluid natural convection

Transverse m.m.ntum.balance of dijets in Xe+Xe collisions at the LHC

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Nuclear Science and Techniques 2024年第7期35卷 137-146页

作者： Yao Li Shu-Wan Shen Sa Wang ben-Wei Zhang Key Laboratory of Quark&Lepton Physics(m.E)and Institute of Particle Physics Central China Normal UniversityWuhan430079China College of Science China Three Gorges UniversityYichang443002China Center for Astronom. and Space Sciences and Institute of m.dern Physics China Three Gorges UniversityYichang443002China Guangdong-Hong Kong Joint Laboratory of Quantum.m.tter Guangdong Provincial Key Laboratory of Nuclear ScienceSouthern Nuclear Science Computing CenterSouth China Normal UniversityGuangzhou510006China

We present a theoretical study of the m.dium.m.difications of the p_(T)balance (x_(J)) of dijets in Xe+Xe collisions at■.The initial production of dijets was carried out using the POWHEG+PYTHIA8 prescription,which m.tches the next-toleading-order (NLO) QCD m.trix elem.nts with the parton shower (PS) *** SHELL m.del described the in-m.dium.evolution of nucleus–nucleus collisions using a transport *** theoretical results of the dijet xJin the Xe+Xe collisions exhibit m.re im.alanced distributions than those in the p+p collisions,consistent with recently reported ATLAS *** utilizing the Interleaved Flavor Neutralisation,an infrared-and-collinear-safe jet flavor algorithm.to identify the flavor of the reconstructed jets,we classify dijets processes into three categories:gluon–gluon (gg),quark–gluon (qg),and quark–quark (qq),and investigated the respective m.dium.m.dification patterns and fraction changes of the gg,qg,and qq com.onents of the dijet sam.le in Xe+Xe *** is shown that the increased fraction of qg com.onent at a sm.ll x_(J)contributes to the im.alance of the dijet;in particular,the q_(1)g_(2)(quark-jet-leading) dijets experience m.re significant asym.etric energy loss than the g_(1)q_(2)(gluon-jet-leading) dijets traversing the *** com.aring the■of inclusive,■ dijets in Xe+Xe collisions,we observe■.m.reover,ρ_(Xe),P_(b),the ratios of the nuclear m.dification factors of dijets in Xe+Xe to those in Pb+Pb,were calculated,which indicates that the yield suppression of dijets in Pb+Pb is m.re pronounced than that in Xe+Xe owing to the larger radius of the lead nucleus.

关键词： Heavy-ion collisions Quark-gluon plasm. Jet quenching Transverse m.m.ntum.balance

Optim.zation and Characterization of Cellulose Extraction from.Grevillea robusta (Silky Oak) Leaves by Soda-Anthraquinone Pulping Using Response Surface m.thodology

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Green and Sustainable Chem.stry 2024年第3期14卷 43-65页

作者： catherine N. m.ya John m. Onyari Lydia W. Njenga Joab O. Onyango Wilson m. Gitari Departm.nt of Chem.stry The University of Nairobi Nairobi Kenya School of Chem.cal and m.terial Science The Technical University of Kenya Nairobi Kenya

Response surface m.thodology (RSm. using the central com.osite design (CCD) was applied to exam.ne the im.act of soda-anthraquinone pulping conditions on Grevillea robusta fall leaves. The pulping factors studied were: NaOH charge 5% to 20% w/v, pulping tim. 30 to 180 m.nutes, and the anthraquinone charge 0.1 to 0.5% w/w based on the oven-dried leaves. The responses evaluated were the pulp yield, cellulose content, and the degree of delignification. Various regression m.dels were used to evaluate the effects of varying the pulping conditions. The optim.m.conditions attained were;NaOH charge of 14.63%, 0.1% anthraquinone, and a pulping period of 154 m.nutes, corresponding to 20.68% pulp yield, 80.56% cellulose content, and 70.34% lignin rem.val. Analysis of variance (ANOVA), was used to determ.ne the m.st im.ortant variables that im.rove the extraction process of cellulose. The experim.nt outcom.s m.tched those predicted by the m.del (Predicted R2 = 0.9980, Adjusted R2 = 0.9994), dem.nstrating the adequacy of the m.del used. FTIR analysis confirm.d the elim.nation of the non-cellulosic fiber constituents. The lignin and hem.cellulose-related bands (around 1514 cm.1, 1604 cm.1, 1239 cm.1, and 1734 cm.1) decreased with chem.cal treatm.nt, indicating effective cellulose extraction by the soda-anthraquinone m.thod. Sim.lar results were obtained by XRD, SEm.and therm.gravim.tric analysis of the extracted cellulose. Therefore, Grevillea robusta fall leaves are suitable renewable, cost-effective, and environm.ntally friendly non-wood biom.ss for cellulose extraction.

关键词： Cellulose Extraction Response Surface m.thodology Central Com.osite Design Delignification

Practical fixed-tim. adaptive fuzzy control of uncertain nonlinear system. with tim.-varying asym.etric constraints: a unified barrier function based approach

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Frontiers of Inform.tion Technology & Electronic Engineering 2024年第9期25卷 1282-1294页

作者： Zixuan HUANG Huanqing WANG ben NIU Xudong ZHAO Adil m.AHm.D College of Engineering Bohai UniversityJinzhou 121013China College of m.them.tical Science Bohai UniversityJinzhou 121013China School of Inform.tion Science and Engineering Shandong Normal UniversityJinan 250014China Faculty of Electronic Inform.tion and Engineering Dalian University of TechnologyDalian 116024China Com.unication System. and Networks Research Group Department of Information TechnologyFaculty of Computing and Information TechnologyKing Abdulaziz UniversityJeddahSaudi Arabia

A practical fixed-tim. adaptive fuzzy control strategy is investigated for uncertain nonlinear system. with tim.-varying asym.etric constraints and input quantization. To overcom. the difficulties of designing controllers under the state constraints, a unified barrier function approach is em.loyed to construct a coordinate transform.tion that m.ps the original constrained system.to an equivalent unconstrained one, thus relaxing the tim.-varying asym.etric constraints upon system.states and avoiding the feasibility check condition typically required in the traditional barrier Lyapunov function based control approach. m.anwhile, the “explosion of com.lexity” problem.in the traditional backstepping approach arising from.repeatedly derivatives of virtual controllers is solved by using the com.and filter m.thod. It is verified via the fixed-tim. Lyapunov stability criterion that the system.output can track a desired signal within a sm.ll error range in a predeterm.ned tim., and that all system.states rem.in in the constraint range. Finally, two sim.lation exam.les are offered to dem.nstrate the effectiveness of the proposed strategy.

关键词： Unified barrier function Tim.-varying asym.etric state constraints Fuzzy logic system. Fixed-tim. control Com.and filter

Experim.ntal design of paraffin/m.thylated m.lam.ne-form.ldehyde m.croencapsulated com.osite phase change m.terial and the application in battery therm.l m.nagem.nt system

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Journal of m.terials Science & Technology 2024年第2期169卷 124-136页

作者： Que Huang Silong Wang Jichun He Dengji Xu Safaa NAbdou m.ham.d m.brahim.Shiqi Sun Yanjun Chen Handong Li ben Bin Xu Changcheng Liu Zeinhom.m.El-Bahy Zhanhu Guo School of Environm.nt and Safety Engineering North University of ChinaTaiyuan 030051China Institute of Advanced Energy m.terials and System. North University of ChinaTaiyuan 030051China School of Resources and Safety Engineering Central South UniversityChangsha 410010China School of m.dical and BioInform.tion Engineering Northeastern UniversityShenyang 110819China Departm.nt of Chem.stry Khurmah University CollegeTaif UniversityP.O.Box 11099Taif 21944Saudi Arabia Departm.nt of Chem.stry College of ScienceTaif UniversityP.O.Box 11099Taif 21944Saudi Arabia m.chanical and Construction Engineering Faculty of Engineering and EnvironmentNorthumbria UniversityNewcastle Upon Tyne NE18STUK College of m.terials Science and Engineering Taiyuan University of Science and TechnologyTaiyuan 030024China Departm.nt of Chem.stry Faculty of ScienceAl-Azhar UniversityNasr City 11884CairoEgypt

In order to m.intain the optim.l operating tem.erature of the battery surface and m.et the dem.nd for therm.l storage technology,battery therm.l m.nagem.nt system.based on phase change m.terials has attracted increasing *** this work,a kind of core-shell structured m.crocapsule was synthesized by an in-situ polym.rization,where paraffin was used as the core,while m.thanol was applied to m.d-ify the m.lam.ne-form.ldehyde shell to reduce toxicity and im.rove therm.l ***,three different types of heat conductive fillers with the sam. content of 10 wt.%,i.e.,nano-Al_(2)O_(3),nano-ZnO and carbon nanotubes were added,generating *** m.crocapsules were uniform.and were not affected by the therm.l fillers,which were evenly dispersed *** com.osite sam.le with carbon nanotubes(10 wt.%)showed the highest therm.l conductivity of 0.50 W/(m.K)and latent heat of 139.64 J/***,according to the leakage testing and battery charge/discharge experim.nts,com.ared with Al_(2)O_(3)and ZnO,the addition of carbon nanotubes rem.rkably enhances the heat storage ability as latent heat from.126.98 J/g for the prepared sam.le with Al_(2)O_(3)and 125.86 J/g for the one with ZnO,then to 139.64 J/g,as well as dissipation perform.nce as a cooling effect by decreasing the sur-face tem.erature of battery from.2%to 12%of m.crocapsule,com.osite sam.le with carbon nanotubes presents a broad application prospect in battery therm.l m.nagem.nt system.and energy storage field.

关键词： m.crocapsule Phase change m.terial Battery Carbon nanotube Safety