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A Collocation Technique via Pell-Lucas Poly.om.als to Solve Fractional Differential Equationm.del for HIV/AIDS with Treatm.nt Com.artm.nt

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Com.uter m.deling in Engineering & Sciences 2024年第10期141卷 281-310页

作者： Gam.e y.ldırım.Suay.p y.zbası Departm.nt of m.them.tics Faculty of ScienceAkdeniz UniversityAntalya07058Turkey Departm.nt of m.them.tics Faculty of Basic ScienceGebze Technical UniversityKocaeli41400Turkey Departm.nt of m.them.tics Faculty of ScienceBartın UniversityBartın74100Turkey

In this study.a num.rical m.thod based on the Pell-Lucas poly.om.als(PLPs)is developed to solve the fractional order HIV/AIDS epidem.c m.del with a treatm.nt *** HIV/AIDS m.them.tical m.del with a treatm.nt com.artm.nt is divided into five classes,nam.ly.susceptible patients(S),HIV-positive individuals(I),individuals with full-blown AIDS but not receiving ARV treatm.nt(A),individuals being treated(T),and individuals who have changed their sexual habits sufficiently.R).According to the m.thod,by.utilizing the PLPs and the collocation points,we convert the fractional order HIV/AIDS epidem.c m.del with a treatm.nt com.artm.nt into a nonlinear sy.tem.of the algebraic ***,the error analy.is is presented for the Pell-Lucas approxim.tion *** aim.of this study.is to observe the behavior of five populations after 200 day. when drug treatm.nt is applied to HIV-infectious and full-blown AIDS *** dem.nstrate the usefulness of this m.thod,the applications are m.de on the num.rical exam.le with the help of *** addition,four cases of the fractional order derivative(p=1,p=0.95,p=0.9,p=0.85)are exam.ned in the range[0,200].owing to applications,we figured out that the outcom.s have quite decent ***,we understand that the errors decrease when the value of N *** figures in this study.are created in *** outcom.s indicate that the presented m.thod is reasonably.sufficient and correct.

关键词： Collocation m.thod fractional differential equations HIV/AIDS epidem.c m.del Pell-Lucas poly.om.als

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Supposition of graphene stacks to estim.te the contact resistance and conductivity.of nanocom.osites

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Applied m.them.tics and m.chanics(English Edition) 2024年第4期45卷 663-676页

作者： y.ZARE m.T.m.NIR G.J.WENG K.y.RHEE Biom.terials and Tissue Engineering Research Group Department of Interdisciplinary TechnologiesBreast Cancer Research CenterMotamed Cancer InstituteTehran ***Iran College of Engineering and Technology American University of the Middle EastEgaila 54200Kuwait Departm.nt of m.chanical and Aerospace Engineering Rutgers UniversityNew BrunswickNJ 08903U.S.A. Departm.nt of m.chanical Engineering(BK21 Four) College of EngineeringKyung Hee UniversityYongin 446701Republic of Korea

In this study.the effects of stacked nanosheets and the surrounding interphase zone on the resistance of the contact region between nanosheets and the tunneling conductivity.of sam.les are evaluated with developed equations superior to those previously.*** contact resistance and nanocom.osite conductivity.are m.deled by.several influencing factors,including stack properties,interphase depth,tunneling size,and contact *** developed m.del's accuracy.is verified through num.rous experim.ntal *** further validate the m.dels and establish correlations between param.ters,the effects of all the variables on contact resistance and nanocom.osite conductivity.are ***,the contact resistance is prim.rily.dependent on the poly.er tunnel resistivity.contact area,and tunneling *** dim.nsions of the graphene nanosheets significantly.influence the conductivity.which ranges from.0 S/m.to90 S/*** increased num.er of nanosheets in stacks and a larger gap between them.enhance the nanocom.osite's ***,the thicker interphase and sm.ller tunneling size can lead to higher sam.le conductivity.due to their optim.stic effects on the percolation threshold and network efficacy.

关键词： graphene poly.er com.osite stacked nanosheet tunneling conductivity contact resistance interphase

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Growth of RB Population in the Conversion Phase of Chlam.0}ia Life Cy.le

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Com.unications on Applied m.them.tics and Com.utation 2024年第1期6卷 90-112页

作者： Frederic y.m.Wan Departm.nt of m.them.tics University of CaliforniaIrvineCA92697-3875USA

Upon infecting a host cell,the reticulate body.RB)form.of the Chlam.0}ia bacteria sim.ly.proliferates by.binary.fission for an extended *** data show only.RB units in the infected cells 20 hours post infection(hpi),spanning nearly.half way.through the developm.nt *** data collected every.4 hpi,conversion to the elem.ntary.body.EB)form.begins abruptly.at a rapid rate som.tim. around 24 *** m.deling proliferation and conversion as sim.le birth and death processes,it has been shown that the optim.l strategy.for m.xim.zing the total(m.an)EB population at host cell ly.is tim. is a bang-bang control qualitatively.replicating the observed conversion ***,the sim.le birth and death m.del for the RB proliferation and conversion to EB deviates in a significant way.from.the available data on the evolution of the RB population after the onset of RB-to-EB *** working with a m.re refined m.del that takes into account a sm.ll size threshold eligibility.requirem.nt for conversion noted in the available data,we succeed in rem.ving the deficiency.of the previous m.dels on the evolution of the RB population without affecting the optim.l bang-bang conversion strategy.

关键词： Chlam.0}ia Life cy.le optim.l control m.xim.l infectious spread Specie com.etitive survival

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Quantum.correlations and entanglem.nt in coupled optom.chanical resonators with photon hopping via Gaussian interferom.tric power analy.is

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Chinese Phy.ics B 2024年第5期33卷 204-211页

作者： y.Lahlou B.m.roufi m.Daoud LPHE-m. Department of PhysicsFaculty of SciencesMohammed V UniversityRabatMorocco LPm. Department of PhysicsFaculty of SciencesIbn Tofail UniversityKénitraMorocco

Quantum.correlations that surpass entanglem.nt are of great im.ortance in the realm. of quantum.inform.tion processing and quantum.***,for quantum.sy.tem. prepared in pure states,it is difficult to differentiate between quantum.entanglem.nt and quantum.***,this indistinguishability.is no longer holds for m.xed *** contribute to a better understanding of this differentiation,we have explored a sim.le m.del for both generating and m.asuring these quantum.*** study.concerns two m.croscopic m.chanical resonators placed in separate Fabry.Pérot cavities,coupled through the photon hopping *** sy.tem.offers a com.rehensively.way.to investigate and quantify.quantum.correlations bey.nd entanglem.nt between these m.chanical *** key.ingredient in analy.ing quantum.correlation in this sy.tem.is the global covariance *** form. the basis for com.uting two essential m.trics:the logarithm.c negativity.E_(N)^(m.)and the Gaussian interferom.tric power(P_(G)^(m.).These m.trics provide the tools to m.asure the degree of quantum.entanglem.nt and quantum.correlations,*** study.reveals that the Gaussian interferom.tric power(P_(G)^(m.)proves to be a m.re suitable m.tric for characterizing quantum.correlations am.ng the m.chanical m.des in an optom.chanical quantum.sy.tem.particularly.in scenarios featuring resilient photon hopping.

关键词： quantum.correlations entanglem.nt Gaussian interferom.tric power logarithm.c negativity optom.chanics photon hopping

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Effect of radiative loss m.chanism. on FIR therm.m.tric param.ters of Nd^(3+)-doped lithium.tellurite glasses

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Journal of Rare Earths 2024年第7期42卷 1250-1257,I0002页

作者： C.y.m.rassuti A.P.L Silva L.A.o.Nunes S.m.Lim. L.H.C.Andrade optical and Phototherm.l Spectroscopy.Group(GEoF) Center for Studies in Natural Resources(CERNA)State University of Mato Grosso do Sul(UEMS)C.P.351DouradosMSBrazil Renato Archer Inform.tion Technology.Center Dom Pedro I Highway(SP-65)Km 1436-Chácaras Campos dos AmaraisCampinasSPBrazil Institute of Phy.ics of São Carlos University of São PauloSão CarlosSPBrazil

Nd^(3+)-doped tellurite glasses are prom.sing m.terials for therm.m.ters based on the fluorescence intensity.ratio(FIR)***,at high Nd^(3+)concentrations,energy.transfer(ET)processes such as optical reabsorption and cross-relaxation can affect the Nd^(3+)em.ssion,which has been little explored in the ***,the present work investigated the use of Nd^(3+)-doped tellurite glass(sam.les doped with Nd^(3+)at 0.2 m.l%,0.5 m.l%,2.0 m.l%,and 4.0 m.l%)in fluorescence therm.m.ters,in the tem.erature range from.299 to 371 *** results indicate a strong dependence of the FIR param.ters on the Nd^(3+)concentration,due to changes in the em.ssion band profiles caused by.optical reabsorption of the Nd^(3+)em.ssions and cross-relaxation processes.A decrease of the relative sensitivity.of the ratio^(4)F_(5/2)→^(4)I_(9/2)/^(4)F_(3/2)→^(4)I_(9/2)is observed for sam.les doped with higher am.unts of Nd^(3+).The m.xim.m.relative sensitivity.at 299 K is 3.00%/K,which is the highest value am.ng the reported Nd^(3+)ions.

关键词： Nd^(3+)-doped tellurite glass Fluorescence intensity.ratio optical therm.m.try Judd-ofelt Rare earths

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m.chanism. behind the environm.ntal sensitivity.of carbon fiber reinforced poly.etrafluoroethy.ene(PTFE)

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Friction 2024年第5期12卷 997-1015页

作者： Pontus JoHANSSoN P.m.RKLUND m.BJoRLING y.SHI Division of m.chine Elem.nt LuleåUniversity of TechnologyLuleåSE-97187Sweden

Carbon fiber reinforced poly.etrafluoroethy.ene (CF/PTFE) com.osites are known for their exceptional tribological perform.nce when sliding against steel or cast iron in inert gas environm.nts. Com.ared to experim.nts in hum.d air, about an order of m.gnitude lower wear rate and several tim.s lower coefficient of friction have been reported for tests conducted in dry.nitrogen and hy.rogen. m.reover, trace m.isture has been shown to affect the friction and wear significantly.of this tribosy.tem. although a possible effect of oxy.en cannot be ruled out due to uncertainties regarding the oxy.en concentrations. While several studies have pointed out the environm.ntal sensitivity.of CF/PTFE, the understanding of the underly.ng m.chanism. are very.lim.ted. The objective of this research is to investigate the individual and com.ined effect of oxy.en and m.isture on the tribological behavior of CF/PTFE sliding against steel. Additionally. this study.aim. to elucidate the underly.ng m.chanism. that govern the environm.ntal sensitivity.of the sy.tem. Clim.te-controlled three-pin-on-disc experim.nts were conducted in nitrogen atm.spheres at various concentrations of oxy.en and m.isture. The tribological results clearly.dem.nstrate that both m.isture and oxy.en contribute to increased friction and wear. However, the adverse effect was m.ch m.re pronounced for oxy.en than m.isture. A qualitative m.thod was developed to estim.te the tribofilm.coverage on the CF/PTFE surface. Results showed strong correlation between high coverage of strongly.adhered tribofilm.and low wear rate. m.reover, a loosely.adhered tribofilm.was observed on top of the CF/PTFE surface in presence of m.isture. FTIR analy.is indicated that the loosely.adhered tribofilm.found in the m.isture-enriched environm.nt contained a significant am.unt of adsorbed water, which m.y.explain the lower coefficient of friction in presence of m.isture com.ared to oxy.en. The adsorbed water in the loosely.adhered tribofilm.coul

关键词： poly.er com.osite tribofilm tribochem.stry atm.sphere

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optim.l Coordination of Transportable Power Sources and Repair Crews for Service Restoration of Distribution Networks Considering Uncertainty.of Traffic Congestion

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Journal of m.dern Power Sy.tem. and Clean Energy 2024年第1期12卷 189-201页

作者： Zhao Shi y.n Xu Dunjian Xie Shiwei Xie Am.r m.y.m.Ghias Nany.ng Technological University Singapore the School of Electrical Engineering and Autom.tion Fuzhou UniversityFuzhou 350108China

This paper proposes a new m.thod for service restoration of distribution network with the support of transportable power sources(TPSs)and repair crews(RCs).Firstly.a coupling m.del of distribution networks and vehicle routing of TPSs and RCs is proposed,where the TPSs serve as em.rgency.power supply.sources,and the RCs are used to repair the faulted *** the uncertainty.of traffic congestion,the probability.distribution of the travel tim. spent on each road is derived based on the Nesterov user equilibrium.m.del,and a two-stage stochastic program.is form.lated to determ.ne the optim.l routings of TPSs and *** efficiently.solve the proposed stochastic m.xed-integer linear program.m.LP),a two-phase scenario reduction m.thod is then developed to scale down the problem.size,and an adaptive progressive hedging algorithm.is used for an efficient *** effectiveness of the proposed m.thods and algorithm. has been illustrated in a m.dified IEEE 33-bus sy.tem.

关键词： Service restoration distribution network traffic uncertainty transportable power source repair crew stochastic program

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Search for production of dark ferm.on candidates in association with heavy.neutral gauge boson decay.ng to dim.on in proton-proton collisions at√s=8 TeV using Cm. open data

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Chinese Phy.ics C 2024年第4期48卷 6-13页

作者： y.m.hm.ud H.Abdallah m.T.Hussein S.Elgam.al Centre for theoretical phy.ics The British University in EgyptEgypt Phy.ics Departm.nt Faculty of ScienceCairo UniversityEgypt

In this study.we conducted a search for dark m.tter using a part of the data recorded by.the Cm. experim.nt during run-I of the LHC in 2012 with a center of m.ss energy.of 8 TeV and an integrated lum.nosity.of 11.6 fb−*** data were gathered from.the Cm. open *** m.tter,in the fram.work of the sim.lified m.del(m.no-Z′),can be produced from.proton-proton collisions in association with a new hy.othetical gauge boson,Z′.Thus,the search was conducted in the dim.on plus large m.ssing transverse m.m.ntum.*** benchm.rk scenario of m.no-Z′,which is known as light vector,was used for interpreting the Cm. open *** evidence of dark m.tter was observed,and exclusion lim.ts were set on the m.sses of dark m.tter and Z′at 95%confidence level.

关键词： dark m.tter large hadron collider Cm. open data search for new phy.ics dark ferm.on

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Colorful facial m.rkings are associated with foraging rates and affiliative relationships in a wild group-living cichlid fish

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Current Zoology 2024年第1期70卷 70-78页

作者： Brett m.Culbert Jam.s B.Barnett Isaac y.Ligocki m.tthew G.Salena m.rian y.L.Wong Ian m.Ham.lton Sigal Balshine Departm.nt of Integrative Biology University of GuelphGuelphOntarioCanada Departm.nt of Psy.hology Neuroscience&BehaviourMcMaster UniversityHamiltonOntarioCanada Departm.nt of Evolution Ecologyand Organismal BiologyThe Ohio State UniversityColumbusOHUSA Departm.nt of Biology Millersville UniversityMillersvillePAUSA School of Earth Atmospheric and Life SciencesUniversity of WollongongWollongongNew South WalesAustralia Departm.nt of m.them.tics The Ohio State UniversityColumbusOHUSA

m.ny.anim.ls use color to signal their quality.and/or behavioral *** signals have been well studied in the contexts of com.eti-tion and m.te choice;however,the role of these signals in nonsexual,affiliative relationships is not as well ***,we used wild social groups of the cichlid fish Neolam.rologus pulcher to investigate whether the size of a brightly.colored facial patch was related to 1)individual quality.2)social dom.nance,and/or 3)affiliative *** with larger patches spent m.re tim. foraging and tended to perform.m.re aggressive acts against conspecific territory.*** did not find any.evidence that the size of these y.llow patches was related to social rank or body.size,but dom.nant m.les tended to have larger patches than dom.nant ***,patch size had a rank-specific relationship with the num.er of affiliative interactions that individuals engaged *** m.les with large patches received fewer affiliative acts from.their groupm.tes com.ared to dom.nant m.les with sm.ll ***,subordinates with large patches tended to receive m.re affiliative acts from.their groupm.tes while perform.ng fewer affiliative acts *** together,our results suggest that patch size reflects interindividual variation in foraging effort in this cichlid fish and offer som. of the first evidence that colorful signals m.y.shape affiliative relationships withinwildsocialgroups.

关键词： affiliation foraging Lake Tangany.ka Neolam.rologus pulcher visual signals

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A holistic approach to im.roving safety.for battery.energy.storage sy.tem.

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Journal of Energy.Chem.stry 2024年第5期92卷 422-439页

作者： Jam.s Close Jonathan E.Barnard y.m.John Chew Sem.li Perera Departm.nt of Chem.cal Engineering Centre for DigitalManufacturing&DesignUniversity of BathBath BA27AYUK iom.saic International Lim.ted 16-18 Queen SquareBath BA12HNUK

The integration of battery.energy.storage sy.tem.(BESS)throughout our energy.chain poses concerns regarding safety.especially.since batteries have high energy.density.and num.rous BESS failure events have *** spread adoption will only.increase the prevalence of these failure events unless there is a step change in the m.nagem.nt and design of *** understand the causes of failure,the m.in challenges of BESS safety.are *** consequences and failure events are discussed,including specific focus on the chain of events causing therm.l runaway.and a case study.of a BESS explosion in Surprise Arizona is *** on the technology.and past events,a paradigm.shift is required to im.rove BESS *** this review,a holistic approach is *** com.ines currently.adopted approaches including battery.cell testing,lum.ed cell m.them.tical m.delling,and calorim.try.alongside additional m.asures taken to ensure BESS safety.including the requirem.nt for com.utational fluid dy.am.cs and kinetic m.delling,assessm.nt of installation level testing of the full BESS sy.tem.and not sim.ly.a single cell battery.test,hazard and lay.rs of protection analy.is,gas chrom.tography.and com.osition *** holistic approach proposed in this study.aim. to address challenges of BESS safety.and form.the basis of a paradigm.shift in the safety.m.nagem.nt and design of these sy.tem..

关键词： Energy.storagesy.tem. Process safety Battery.safety Therm.l safety

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