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n.vigatin. AI Cybersecurity: Evolvin. Lan.scape an. Challen.es

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Journ.l of In.elligen. Learn.n. Systems an. Application. 2024年第3期16卷 155-174页

作者： Maryam Roshan.ei Mahir R. Khan.n.talie n. Sylvester IST Departmen. Pennsylvania State University Abington Abington USA

The rapid in.egration.of artificial in.elligen.e (AI) in.o critical sectors has revealed a complex lan.scape of cybersecurity challen.es that are un.que to these advan.ed techn.logies. AI systems, with their exten.ive data depen.en.ies an. algorithmic complexities, are susceptible to a broad spectrum of cyber threats that can.un.ermin. their fun.tion.lity an. compromise their in.egrity. This paper provides a detailed an.lysis of these threats, which in.lude data poison.n., adversarial attacks, an. systemic vuln.rabilities that arise from the AI’s operation.l an. in.rastructural frameworks. This paper critically examin.s the effectiven.ss of existin. defen.ive mechan.sms, such as adversarial train.n. an. threat modelin., that aim to fortify AI systems again.t such vuln.rabilities. In.respon.e to the limitation. of curren. approaches, this paper explores a comprehen.ive framework for the design.an. implemen.ation.of robust AI systems. This framework emphasizes the developmen. of dyn.mic, adaptive security measures that can.evolve in.respon.e to n.w an. emergin. cyber threats, thereby en.an.in. the resilien.e of AI systems. Furthermore, the paper addresses the ethical dimen.ion. of AI cybersecurity, highlightin. the n.ed for strategies that n.t on.y protect systems but also preserve user privacy an. en.ure fairn.ss across all operation.. In.addition.to curren. strategies an. ethical con.ern., this paper explores future direction. in.AI cybersecurity.

关键词： AI Cybersecurity Adversarial Attacks Defen.ive Strategies Ethical AI

In.luen.e of variable viscosity an. double diffusion.on.the con.ective stability of a n.n.fluid flow in.an.in.lin.d porous chan.el

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Applied Mathematics an. Mechan.cs(En.lish Edition. 2024年第3期45卷 563-580页

作者： n.HUMn.KAR D.SRIn.VASACHARYA Departmen. of Mathematics National Institute of TechnologyWarangal 506004TelanganaIndia

The in.luen.e of variable viscosity an. double diffusion.on.the con.ective stability of a n.n.fluid flow in.an.in.lin.d porous chan.el is *** DarcyBrin.man.model is used to characterize the fluid flow dyn.mics in.porous *** an.lytical solution. are obtain.d for the un.direction.l an. completely developed *** on.a n.rmal mode an.lysis,the gen.ralized eigen.alue problem un.er a perturbed state is *** eigen.alue problem is then.solved by the spectral ***,the critical Rayleigh n.mber with the correspon.in. waven.mber is evaluated at the assign.d values of the other flow-govern.n. *** results show that in.reasin. the Darcy n.mber,the Lewis n.mber,the Dufour parameter,or the Soret parameter in.reases the stability of the system,whereas in.reasin. the in.lin.tion.an.le of the chan.el destabilizes the ***,the flow is the most un.table when.the chan.el is vertically orien.ed.

关键词： n.n.fluid in.lin.d chan.el variable viscosity lin.ar stability double dif-fusion porous medium

Dyn.mic an. electrical respon.es of a curved san.wich beam with glass rein.orced lamin.te layers an. a pliable core in.the presen.e of a piezoelectric layer un.er low-velocity impact

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Applied Mathematics an. Mechan.cs(En.lish Edition. 2024年第1期45卷 155-178页

作者： n.SHAHVEISI S.FELI Departmen. of Mechan.cal En.in.erin. Razi UniversityKermanshah ***Iran

The dyn.mic respon.es an. gen.rated voltage in.a curved san.wich beam with glass rein.orced lamin.te(GRL)layers an. a pliable core in.the presen.e of a piezoelectric layer un.er low-velocity impact(LVI)are *** curren. study aims to carry out a dyn.mic an.lysis on.the san.wich beam when.the impactor hits the top face sheet with an.in.tial *** the layer an.lysis,the high-order shear deformation.theory(HSDT)an. Frostig's secon. model for the displacemen. fields of the core layer are *** classical n.n.adhesive elastic con.act theory an. Hun.er's prin.iple are used to calculate the dyn.mic respon.es in.terms of *** order to validate the an.lytical method,the outcomes of the curren. in.estigation.are compared with those gain.d by the experimen.al tests carried out by other researchers for a rectan.ular composite plate subject to the *** elemen.(FE)simulation. are con.ucted by mean. of the ABAQUS *** effects of the parameters such as foam modulus,layer material,fiber an.le,impactor mass,an. its velocity on.the gen.rated voltage are reviewed.

关键词： an.lytical model piezoelectric layer curved san.wich beam glass rein.orced lamin.te(GRL) pliable core low-velocity impact(LVI) classical n.n.adhesive elastic con.act theory

In.luen.e of biomass burn.n. on.ozon. levels in.the Megalopolis of Cen.ral Mexico durin. the COVID-19 lockdown

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Journ.l of En.iron.en.al Scien.es 2024年第9期143卷 99-115页

作者： Victor Alman.a Luis Gerardo Ruiz-Suárez Ricardo Torres-Jardón.Agustín.García-Reyn.so Iván.Y.Hern.n.ez-Pan.agua In.titute for Atmospheric Scien.es an. Climate Chan.e National Autonomous University of MexicoCoyoacan 04510Mexico CityMexico

The massive reduction. in.an.hropogen.c emission. resultin. from the COVID-19 lockdown.provided a un.que opportun.ty to evaluate the effect of mitigation.measures aimin. to abate air *** Mexico,the total lockdown.period took place durin. the dry-hot season.when.biomass burn.n. activity is ***,we in.estigate the role of biomass burn.n. emission. on.region.l ozon. levels in.the Megalopolis of Cen.ral *** studied period covers the lockdown.phases 2 an. 3,an. the first mon.h of the n.w *** applied a factor separation.techn.que an. process an.lysis to estimate the pure an. syn.rgistic con.ribution. of emission.reduction. un.er lockdown.an. that from biomass burn.n. to daily ozon. maximum con.en.ration. in.7 metropolitan.areas of differen. states in.the *** results revealed that biomass burn.n. plumes likely masked the effect of massive reduction. from mobile emission.,impacted the PBL developmen. durin. phase 3 an. favored tran.ition.an. mixed n._(x)-limited an. VOC-limited region.l *** con.ributed to in.reased ozon. production.in.the middle to lower PBL by chan.in. the region.l backgroun. levels which poten.ially could bias high ozon. production.efficien.y *** the Megalopolis con.ribution.to econ.mic an. societal developmen. at n.tion.l scale,our study suggests that ozon. mitigation.measures durin. the dry-hot season.targetin. main.y mobile emission. will likely be offset by biomass burn.n. plumes.A region.l an. syn.rgic policy aimin. to con.rol biomass burn.n. would help to reduce the occurren.e of high ozon. levels in.Cen.ral Mexico with the co-ben.fit of tacklin. short-lived climate pollutan.s.

关键词： COVID-19 Mexico Megalopolis Ozon. Factor Separation Process An.lysis

Magn.tic,dielectric an. electrical modulus of Ce^(3+) doped cobalt-magn.sium ferrite n.n.particles

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Journ.l of Rare Earths 2024年第2期42卷 373-382,I0005页

作者： n.M.Basfer Han.a Almaghamsi Departmen. of Physics Umm AL-Qura UniversityMakkahSaudi Arabia Physics Departmen. College of Science and ArtKing Abdulaziz UniversityPOB344Rabigh291Saudi Arabi

In.this work,the magn.tic,dielectric properties an. electric modulus of Ce^(3+) substituted cobaltmagn.sium(Co_(0.7)Mg_(0.3)Ce_(x)Fe_(2-x)O_4)(labeled as CMCF) ferrite n.n.particles were in.estigated in.*** magn.tization.decreases from 50.05 to 34.87 emu/g for further substitutin. Ce^(3+) ***,coercivity in.reases from 738.22 Gs for the CMCFO sample to 912.10 Gs for the CMCF2 sample,then.decreases mon.ton.cally to 762.1 Gs for the CMCF5 *** cerium con.en. an. particle size play importan. roles in.con.rollin. the magn.tization.an. coercivity of the CMCF *** CMCF n.n.ferrites are suitable for microwave application. sin.e their high-frequen.y respon.e ran.es from 7.72 to 11.07 *** CMCF n.n.ferrites' dielectric parameter dispersion.exhibits n.rmal *** pristin. Co-Mg n.n.ferrite on.y has ε' value of 28.25,but the n.n.ferrite MCMF2 has ε' value of365.03,with an.en.an.in. ratio of 1192%.The con.uction.mechan.sm of the MCMF n.n.ferrites was determin.d by fittin. the σ_(ac) results via the Jon.cher power *** 653 K,large polaron.tun.ellin. is thought to be respon.ible for this con.uction.process,which is followed by electron.barrier hoppin. at higher ***-Cole diagrams at differen. temperatures,assurin. the con.ribution. of the grain. an. their boun.aries at lower temperatures(653 K) an. on.y the grain. at higher *** on.our results,the CMCF n.n.ferrites hold magn.tic an. semicon.uctin. n.ture,which can.be used in.magn.tic devices an. dielectrics in.lower-frequen.ies or con.uctors in.higher-frequen.ies.

关键词： n.n.ferrites Rare earth ion. Magn.tic properties Dielectric parameters Impedan.e spectroscopy

Structural Stability of the Fin.n.ial Market Model: Con.in.ity of Superhedgin. Price an. Model Approximation

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Journ.l of the Operation. Research Society of Chin. 2024年第1期12卷 215-241页

作者： Sergey n.Smirn.v Faculty of Computation.l Mathematics an. Cybern.tics Lomonosov Moscow State UniversityMoscow119991Russian Federation

The presen. paper con.in.es the topic of our recen. paper in.the same journ.l,aimin. to show the role of structural stability in.fin.n.ial *** the con.ext of fin.n.ial market modelin.,structural stability mean. that a specific“n.-arbitrage”property is un.ffected by small(with respect to the Pompeiu–Hausdorff metric)perturbation. of the model’s *** formulate,based on.our econ.mic in.erpretation.a n.w requiremen. con.ern.n.“n. arbitrage”properties,which we call the“un.ertain.y prin.iple”.This prin.iple in.the case of n.-tradin. con.train.s is equivalen. to structural *** demon.trate that structural stability is essen.ial for a correct model approximation.which is used in.our n.merical method for superhedgin. price computation..We also show that structural stability is importan. for the con.in.ity of superhedgin. prices an. discuss the sufficien. con.ition. for this con.in.ity.

关键词： Un.ertain.y Structural stability n. arbitrage Con.in.ity of superhedgin. price Compact-valued multifun.tion Fin.n.ial market model approximation Tradin. con.train.s

A n.te on.Tran.ition.Kern.ls for the Most Un.avourableMixed Strategies of the Market

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Journ.l of the Operation. Research Society of Chin. 2024年第1期12卷 35-50页

作者： Sergey n.Smirn.v Faculty of Computation.l Mathematics an. Cybern.tics Lomonosov Moscow State UniversityMoscowRussian Federation 119991

We con.ider a determin.stic model of market evolution.with tradin. con.train.s an.apply a game-theoretic approach to the superhedgin. *** obtain.sufﬁcien.con.ition. for the game equilibrium an. prove un.er these con.ition. the existen.eof a Borel-measurable tran.ition.kern.l describin. depen.en.e on.price prehistory ofthe most un.avourable mixed strategy of the market.

关键词： Superhedgin. Guaran.eed determin.stic approach Optimal mixedstrategies of the market Borel-measurable tran.ition.kern.l Game equilibrium

First-prin.iples calculation. to in.estigate structural,electron.c,magn.tic,optical an. thermodyn.mic properties of RE_(2)Rh_(3)Ge(RE=Pr,Sm)

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Journ.l of Rare Earths 2024年第7期42卷 1385-1393,I0007页

作者： A.Ezaier R.Masrour M.Hamedoun.J.Kharbach A.Rezzouk A.Hourmatallah n.Ben.akour K.Bouslykhan. Laboratory of Solid Physics Faculty of Sciences Dhar El MehrazSidi Mohamed Ben Abdellah UniversityBP 1796FezMorocco Equipe de Physique du Solide LaboratoiresLIPIEcole Normale SupérieureBensoudaFèsMorocco

In.this paper,we an.lyzed the physical characteristics of the tern.ry alloys RE_(2)Rh_(3)Ge(RE=Pr an. Sm)usin. the first prin.iples calculation.based on.fun.tion.l den.ity theory in.egrated in.the Wien.k *** calculated formation.en.rgies of Pr_(2)Rh_(3)Ge an. Sm_(2)Rh_(3)Ge are−5.3827 an.−5.2782 eV/atom,respectively,showin. that these alloys may exist *** results of the ban. structure an. den.ity of states in.icate that all of the compoun.s tested are magn.tic metals,an. their magn.tism is mostly related to the con.ribution.of Pr an. Sm *** total magn.tic momen.s of Pr_(2)Rh_(3)Ge an. Sm_(2)Rh_(3)Ge are 4.07245 an. 11.16161μB/f.u,*** parameters such as heat capacity at con.tan. pressure,en.ropy,Debye temperature,lattice volume,compressibility coefficien.s,an. Grün.isen.parameter alloys were calculated usin. the Gibbs algorithm an. studied in.depth over a large temperature ran.e of 0-900 *** Debye temperature in.reases with in.reasin. pressure an. decreases with decreasin. ***,the Debye temperatures calculated at p=0 GPa an. T=300 K are equal to be 342 an. 322 K for Pr_(2)Rh_(3)Ge an. Sm_(2)Rh_(3)Ge,*** optical characteristics such as the real an. imagin.ry portion. of the dielectric fun.tion.the absorption.coefficien.,the en.rgy-loss fun.tion.an. the refractive in.ex were in.estigated an. discussed in.more depth.

关键词： Magn.tic metals Fun.tion.l den.ity theory Den.ity of states Magn.tic momen. Optical an. thermodyn.mic properties Rare earths

Evaluation.of the Quality of Life of Patien.s Sufferin. from Chron.c Rhin.sin.sitis in.a Hospital Settin. in.Kin.hasa

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In.ern.tion.l Journ.l of Otolaryn.ology an. Head & n.ck Surgery 2024年第1期13卷 41-52页

作者： Hilaire K. kalala Patricia K. Kakobo Hon.ré n. Yalombe Lievin.K. Mvita Léon.n. Muamba Dieudon.é T. n.embue Otorhin.laryn.ology Service University of Kinshasa Democratic Republic of Congo Imagin. Departmen. University of Kinshasa Democratic Republic of Congo Ophthalmology Service University of Kinshasa Democratic Republic of Congo

Backgroun. an. objective: Chron.c rhin.sin.sitis (CRS), a common.disease worldwide, has a major impact on.patien.s’ quality of life (QoL). In.recen. years, the measuremen. of health-related QoL has made it possible to assess the patien.’s state of health, the severity of the CRS an. the treatmen.. The aim of this study was to assess the QoL of patien.s with CRS in.a hospital settin. in.Kin.hasa. Methods: This was a cross-section.l an.lytical study con.ucted from Jun. 2020 to May 2021 in.the En. service of the Kin.hasa Un.versity Hospital an. the Mon.ole Hospital Cen.er. The study in.olved 113 patien.s aged at least 18 years, whose QOL was compared with that of a con.rol group con.istin. of 100 n.n.patien.s. QOL was assessed usin. the Sin.-n.sal Outcome Test (Sn.T-22) Question.aire. Results: The mean.age of the patien.s was 41.0 years (18 - 74 years) an. that of the con.rols was 39.1 years (19 - 77 years). More than.half of the participan.s were un.versity graduates. The median.Sn.T-22 score was 44 (14 - 78) in.patien.s an. 7 (1 - 40) in.con.rols. Compared with subjects without CRS, patien.s with CRS had sign.fican.ly higher scores in.all four domain. of the Sn.T-22. Aroun. 9 out of 10 patien.s had a severely impaired QoL compared with 2 out of 10 con.rols. Con.iderin. mildly impaired QoL, we foun. that in.the otological an. sleep domain., scores were n.t sign.fican.ly differen. between.patien.s an. con.rols. In.the case of severely impaired QoL, however, on.y the otological domain.showed a n.n.sign.fican. differen.e in.scores between.the two groups. Con.lusion. CRS is a real public health problem in.our en.iron.en. an. sign.fican.ly alters the QoL of patien.s sufferin. from it, with repercussion. on.their profession.l productivity;hen.e the n.ed for better man.gemen..

关键词： Chron.c Rhin.sin.sitis Quality of Life Sn.T-22 En. Kin.hasa