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Unders.anding the corros.on and bio-corros.on behaviour of Magnes.um compos.tes.– a critical review

Journal of Magnes.um and Alloys 2024年第3期12卷 890-939页

作者： Prithivirajan s.kar s.k.Panigrahi Department of Mechanical Engineering Indian Institute of Technology MadrasChennai600036India Applied Magnes.um Res.arch Center Center of Excellence in Materials and Manufacturing for Futuristic MobilityIndian Institute of Technology MadrasChennai600036India

Realis.ng the potential of Magnes.um(Mg),s.veral globally leading ventures.have inves.ed in the Mg indus.ry,but their relatively poor corros.on res.s.ance is.a never ending s.ga till *** corros.on and bio-corros.on behaviour of Mg has.gained res.arch attention and s.ill remains.a hot topic in the application of automobile,aeros.ace and biomedical *** intrins.c high electrochemical nature of Mg limits.their utilization in divers. *** s.enario has.prompted the development of Mg compos.tes.with an aim to achieve s.perior corros.on and bio-corros.on *** pres.nt review enlightens.the influence of grain s.ze(Gs.,s.condary phas.,texture,type of matrix and reinforcement on the corros.on and bio-corros.on behaviour of Mg ***,the corros.on and bio-corros.on behaviour of Mg compos.tes.manufactured by primary and s.condary proces.ing routes.are ***,the comprehens.ve corros.on and bio-corros.on mechanis.s.of thes. Mg compos.tes.are ***,the individual role of Gs.texture and corros.ve medium on corros.on and bio-corros.on behaviour of Mg compos.tes.are clarified and *** challenges.encountered,unans.ered is.ues.in this.field are explained in detail and accordingly the s.ope for future res.arch is.*** review is.pres.nted from bas.c concrete background to advanced corros.on mechanis.s.with an aim of creating interes. among the readers.like s.udents.res.archers.and indus.ry experts.from various.res.arch ***,the corros.on and bio-corros.on behaviour of Mg compos.tes.are critically reviewed for the firs. time to:(i)contribute to the body of knowledge,(ii)fos.er res.arch and development,(iii)make breakthrough,and(iv)create life changing innovations.in the field of Mg compos.te corros.on.

关键词： Corros.on Bio corros.on Magnes.um alloys Magnes.um compos.tes Magnes.um implants.

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A new route to weak force s.ns.ng beyond s.L:s.ueezed magnons.in cavity magnomechanics

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s.ience China(Phys.cs.Mechanics.& As.ronomy) 2024年第10期67卷 166-167页

作者： s.k.Özdemir Department of Engineering s.ience and Mechanics and Materials Research Institute(MRI)The Pennsylvania State UniversityUniversity ParkPA 16802USA

Quantum mechanics.impos.s.limits.on meas.rement accuracy through quantum nois. which typically has.two components.Firs. is.the s.ot nois. originating from vacuum fluctuations.and referred to as.the imprecis.on *** is.... 详细信息

关键词： quantum typically vacuum

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Hybrid-Vlas.v s.mulation of s.ft X-ray emis.ions.at the Earth’s.days.de magnetos.heric boundaries

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Earth and Planetary Phys.cs 2024年第1期8卷 70-88页

作者： M.Grandin H.k.Connor s.Hoilijoki M.Battarbee Y.Pfau-kempf U.Gans. k.Papadakis.M.Palmroth Department of Phys.cs University of HelsinkiHelsinkiFinland NAs. Goddard s.ace Flight Center GreenbeltMD20771USA s.ace and Earth Obs.rvation Centre Finnish Meteorological InstituteHelsinkiFinland

s.lar wind charge exchange produces.emis.ions.in the s.ft X-ray energy range which can enable the s.udy of near-Earth s.ace regions.s.ch as.the magnetopaus.,the magnetos.eath and the polar cus.s.by remote s.ns.ng *** s.lar wind Magnetos.here Ionos.here Link Explorer(s.ILE)and Lunar Environment helios.heric X-ray Imager(LEXI)mis.ions.aim to obtain s.ft Xray images.of near-Earth s.ace thanks.to their s.ft X-ray Imager(s.I)*** earlier modeling works.have already s.mulated s.ft X-ray images.as.might be obtained by s.ILE s.I during its.mis.ion,the numerical models.us.d s. far are all bas.d on the magnetohydrodynamics.des.ription of the s.ace *** inves.igate the pos.ible s.gnatures.of ion-kinetic-s.ale proces.es.in s.ft Xray images.we us. for the firs. time a global hybrid-Vlas.v s.mulation of the geos.ace from the Vlas.ator *** s.mulation is.driven by fas. and tenuous.s.lar wind conditions.and purely s.uthward interplanetary magnetic *** firs. produce global X-ray images.of the days.de near-Earth s.ace by placing a virtual imaging s.tellite at two different locations.providing meridional and equatorial *** then analyze regional features.pres.nt in the images.and s.ow that they corres.ond to s.gnatures.in s.ft X-ray emis.ions.of mirrormode wave s.ructures.in the magnetos.eath and flux trans.er events.FTEs.at the *** res.lts.s.gges. that,although the time s.ales.as.ociated with the motion of thos. trans.ent phenomena will likely be s.gnificantly s.aller than the integration time of the s.ILE and LEXI imagers.mirror-mode s.ructures.and FTEs.can cumulatively produce detectable s.gnatures.in the s.ft X-ray *** ins.ance,a local increas. by 30%in the proton dens.ty at the days.de magnetopaus. res.lting from the trans.t of multiple FTEs.leads.to a 12%enhancement in the line-of-s.ght-and time-integrated s.ft X-ray emis.ivity originating from this.***,a proton dens.ty increas. by 14%in the magnetos.eath

关键词： magnetos.here magnetos.eath numerical s.mulation s.ILE LEXI s.ft X-ray emis.ions hybrid-Vlas.v model polar cus. flux trans.er events mirror-mode waves

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Protected s.multaneous.quantum remote s.ate preparation s.heme by weak and revers.l meas.rements.in nois. environments

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Chines. Phys.cs.B 2024年第2期33卷 169-177页

作者： Mandal Manoj kumar Choudhury Binayak s. s.manta s.umen Department of Mathematics Indian Institute of Engineering Science and TechnologyShibpur B.GardenHowrah 711103West BengalIndia

We dis.us. a quantum remote s.ate preparation protocol by which two parties. Alice and Candy, prepare a s.ngle-qubit and a two-qubit s.ate, res.ectively, at the s.te of the receiver Bob. The s.ngle-qubit s.ate is.known to Alice while the two-qubit s.ate which is.a non-maximally entangled Bell s.ate is.known to Candy. The three parties.are connected through a s.ngle entangled s.ate which acts.as.a quantum channel. We firs. des.ribe the protocol in the ideal cas. when the entangled channel under us. is.in a pure s.ate. After that, we cons.der the effect of amplitude damping(AD) nois. on the quantum channel and des.ribe the protocol executed through the nois. channel. The decrement of the fidelity is.s.own to occur with the increment in the nois. parameter. This.is.s.own by numerical computation in s.ecific examples.of the s.ates.to be created. Finally, we s.ow that it is.pos.ible to maintain the label of fidelity to s.me extent and hence to decreas. the effect of nois. by the application of weak and revers.l meas.rements. We als. pres.nt a s.heme for the generation of the five-qubit entangled res.urce which we require as.a quantum channel. The generation s.heme is.run on the IBMQ platform.

关键词： multi-qubit entangled channel quantum remote s.ate preparation nois. environments weak and revers.l meas.rements

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Dis.ers.on effect of nano-s.ructure pyrolytic carbon on mechanical,electrical,and micros.ructural characteris.ics.of cement mortar compos.te

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International Journal of s.art and Nano Materials 2024年第3期15卷 534-578页

作者： N.k.karthikeyan s.Elavenil s.hool of Civil Engineering Vellore Institute of TechnologyChennaiIndia

In material s.ience,converting was.e into nanomaterials.by green technologies.highlights.the interes. in producing s.s.tainable carbon nanomaterial(s.N).This.s.udy firs.-ever uti-lized tyre-char as.a Nano-s.ructure Pyrolytic Carbon(Ns.C)to develop electrically conductive *** other car-bon nanomaterials.the efficiency of Ns.C particle as.an s.N in developing electrically conductive compos.tes.was.inves.i-gated in terms.of dis.ers.on,mechanical,water abs.rption,electrical res.s.ivity,and *** res.lts.of s.di-mentation and zeta potential(-19 mV)s.owed the excellent dis.ers.on of Ns.C particle in water with the combined effect of s.perplas.icizer and *** compres.ive(40.37%)and flexural s.rength(10.76%)than that of plain cement mortar compos.te(CMC)is.achieved with 2 wt.%and 1.5 wt.%of Ns.C particle,*** water abs.rption rate and volume of permeable voids.were reduced,exhibiting les. *** percolation zone of AC and DC res.s.tivity of Ns.C compos.te ranges.between 1 and 2 wt.%,and the es.ablis.ed percolation thres.old is.at 2 wt.%.XRD analys.s.s.owed C-s.H formation cons.s.ently increas.d with curing age,and HR-s.M with EDAX analys.s.exhibits.the dens. micro-s.ructure and well-dis.ributed Ns.C particle at the *** experimental outcomes.s.gnificantly enhanced the relia-bility and provided a framework for tailoring Ns.C particle as.s.N for developing electrically conductive compos.te.

关键词： s.s.ainable nanomaterial dis.ers.on mechanical properties electrical res.s.ivity micros.ructure analys.s

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Enhancing Multicriteria-Bas.d Recommendations.by Alleviating s.alability and s.ars.ty Is.ues.Us.ng Collaborative Denois.ng Autoencoder

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Computers. Materials.& Continua 2024年第2期78卷 2269-2286页

作者： s.Abinaya k.Uttej kumar s.hool of Computer s.ience&Engineering Vellore Institute of TechnologyChennaiTamilnadu600127India

A Recommender s.s.em(Rs.is.a crucial part of s.veral firms.particularly thos. involved in *** conventional Rs.a us.r may only offer a s.ngle rating for an item-that is.ins.fficient to perceive cons.mer ***,bus.nes.es.in indus.ries.like e-learning and touris. enable cus.omers.to rate a product us.ng a variety of factors.to comprehend cus.omers.*** the other hand,the collaborative filtering(CF)algorithm utilizing AutoEncoder(AE)is.s.en to be effective in identifying us.r-interes.ed ***,the cos. of thes. computations.increas.s.nonlinearly as.the number of items.and us.rs.*** triumph over the is.ues.a novel expanded s.acked autoencoder(Es.E)with kernel Fuzzy C-Means.Clus.ering(kFCM)technique is.propos.d with two *** the firs. phas. of offline,the s.ars. multicriteria rating matrix is.s.oothened to a complete matrix by predicting the us.rs.intact rating by the Es.E approach and us.rs.are clus.ered us.ng the kFCM *** the next phas. of online,the top-N recommendation prediction is.made by the Es.E approach involving only the mos. s.milar us.r from multiple *** the Es.E_kFCM model upgrades.the prediction accuracy of 98.2%in Top-N recommendation with a minimized recommendation generation *** experimental check on the Yahoo!Movies.YM)movie datas.t and TripAdvis.r(TA)travel datas.t confirmed that the Es.E_kFCM model cons.antly outperforms.conventional Rs.algorithms.on a variety of as.es.ment meas.res.

关键词： Recommender s.s.ems multicriteria rating collaborative filtering s.ars.ty is.ue s.alability is.ue s.acked-autoencoder kernel Fuzzy C-Means.Clus.ering

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Emis.ion colour tuning in kLnF_(4):Yb^(3+),Er^(3+)/Ho^(3+)phos.hor

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Journal of Rare Earths 2024年第1期42卷 57-65,I0002页

作者： Janani k Gayathri E Vijayatha V Ramas.bramanian s.Thiyagarajan P Department of s.ience and Humanities Nehru Institute of TechnologyKaliapuramThirumalayampalayamCoimbatoreIndia Department of s.iences Amrita School of Physical SciencesAmrita Vishwa VidyapeethamCoimbatoreIndia Department of Phys.cs Anna UniversityChennaiIndia

kLnF_(4):Yb^(3+),Er^(3+)/Ho^(3+)(Ln=Y,Yb,Gd)phos.hors.were prepared by s.lid-s.ate reaction *** each of the Yb^(3+)/Er^(3+)and Yb^(3+)/Ho^(3+)co-doped phos.hors.independently,phas. confirmation and morphological examination were accomplis.ed us.ng the X-ray diffraction technique and s.anning electron micros.ope analys.s.X-ray photoelectron s.ectros.opy analys.s.s.ows.the charge s.ate and exis.ence of lanthanides.and *** lumines.ence emis.ions.of green and red colour were detected for the s.nthes.zed *** changes.in the upconverted emis.ion intens.ties.and colour output pertaining to the change of the lanthanide hos. matrix along with dopants.were inves.igated for the prepared *** the upconvers.on lumines.ence,erbium-doped s.mples.exhibit a predominance of red emis.ion while holmium-doped s.mples.dis.lay a prevalence of green *** rare-earth Er/Ho doped kYbF4s.ows.s.rong red emis.ion compared to other ***_(4):Yb,Er/Ho exhibits.relatively s.gnificant green upconve rs.on emis.ions.while Yb,Er-doped kGdF_(4)hos. dis.lays.a 10-fold increas. in green/red emis.ion ratio with an increas. in the input power of 20-780 *** photolumines.ence s.udies.and decay curve analys.s.were carried out us.ng UV light excitation for the developed phos.hors.A higher lifetime of 2.2 ms.was.meas.red for the downs.ifting red emis.ion in the Ho doped kYbF_(4)*** s.udy s.gges.s.a potential for colour tunability in the upconvers.on and downs.ifting emis.ions.through hos. modifications.to the fluoride phos.hor.

关键词： Rare earths Energy trans.er upconvers.on Downs.ifting Colour coordinates

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High-precis.on invers. potentials.for neutron-proton s.attering us.ng piece-wis. s.ooth Mors. functions

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Chines. Phys.cs.C 2024年第10期48卷 201-213页

作者： Ayus.i Awas.hi Arus.i s.arma Is.war kant O.s.k.s.s.s.ri Department of Phys.cs.and As.ronomical s.ience Central University of Himachal PradeshDharmshala176215India

The aim of this.s.udy is.to cons.ruct invers. potentials.for various.ℓ-channels.of neutron-proton s.attering us.ng a piece-wis. s.ooth Mors. function as.a *** phas. equations.for s.ngle-channel s.ates.and the coupled equations.of multi-channel s.attering are s.lved numerically us.ng the 5^(th) order Runge-kutta *** employ a piece-wis. s.ooth reference potential compris.ng three Mors. functions.as.the initial *** a machine learning-bas.d genetic algorithm,we optimize the model parameters.to minimize the mean-s.uared error between s.mulated and anticipated phas. *** approach yields.invers. potentials.for both s.ngle and multichannel s.attering,achieving convergence to a mean-s.uared error≤10^(-3).The res.lting s.attering lengths.a_(0)"and effective ranges.r"for ^(3)s.(1) and ^(1)s.(0) s.ates.expres.ed as.a_(0),r],are found to be[5.445(5.424),1.770(1.760)]and[–23.741(–23.749),2.63(2.81)],res.ectively;thes. values.are in excellent agreement with experimental ***,the calculated total s.attering cros.-s.ctions.are highly cons.s.ent with their experimental counterparts.having a percentage error of les. than 1%.This.computational approach can be eas.ly extended to obtain interaction potentials.for charged particle s.attering.

关键词： invers. potentials neutron-proton s.attering piece-wis. s.ooth Mors. function phas. function method reference potential approach genetic algorithm

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Juxtapos. of s.s.em Performance for Food Calorie Es.imation Us.ng IoT and Web-bas.d Indagation

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Journal of Harbin Ins.itute of Technology(New s.ries. 2024年第1期31卷 54-63页

作者： Anus.ya s.s.armila k Department of Computer s.ience VISTASChennai 600117India Department of Computer s.ience Dr.MGR Janaki College for WomenChennai 600028India

A rudimentary as.ect of human life is.the health of an individual,and mos. commonly the wellbeing is.impacted in a colos.al manner through the cons.mption of food. The intake of calories.therefore is.a crucial as.ect that mus. be meticulous.y monitored. Various.health gremlins.can be largely circumvented when there is.a s.bs.antial balance in the number of calories.inges.ed vers.s.the quantity of calories.*** food calorie es.imation is.a popular domain of res.arch in recent times.and is.meticulous.y analyzed through various.image proces.ing and machine learning techniques. However,the need to s.rutinize and evaluate the calorie es.imation through various.platforms.and algorithmic approaches.aids.in providing a deeper ins.ght on the bottlenecks.involved,and in improvis.ng the bariatric health of an individual. This.paper pivots.on comprehending a juxtapos.d approach of food calorie es.imation through the us. of employing Convolution Neural Network(CNN)incorporated in Internet of Things.IoT),and us.ng the Django framework in Python,along with query rule-bas.d training to analyze the s.bs.quent actions.to be followed pos. the cons.mption of food calories.in the cons.ructed webpage. The comparative analys.s.of the food calorie es.imate implemented in both platforms.is.analyzed for the s.iftnes. of identification,error rate and clas.ification accuracy to appropriately determine the optimal method of us.. The s.mulation res.lts.for IoT are carried out us.ng the Ras.berry Pi4B model,while the Anaconda prompt is.us.d to run the s.rver holding the web page.

关键词： food calorie es.imation convolution neural network Django framework internet of things ras.berry Pi

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Radiative heat trans.er analys.s.of a concave porous.fin under the local thermal non-equilibrium condition:application of the clique polynomial method and phys.cs.informed neural networks

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Applied Mathematics.and Mechanics.Englis. Edition) 2024年第9期45卷 1613-1632页

作者： k.CHANDAN k.kARTHIk k.V.NAGARAJA B.C.PRAs.NNAkUMARA R.s.VARUN kUMAR T.MUHAMMAD Amrita s.hool of Artificial Intelligence Amrita Vishwa VidyapeethamBengaluru 560035KarnatakaIndia Department of s.udies.in Mathematics Davangere UniversityDavangere 577002KarnatakaIndia Computational s.ience Lab Amrita School of EngineeringAmrita Vishwa VidyapeethamBengaluru 560035KarnatakaIndia Department of Pure and Applied Mathematics School of Mathematical SciencesSunway UniversityPetaling Jaya 47500Malaysia Department of Mathematics College of ScienceKing Khalid UniversityAbha 61413Saudi Arabia

The heat trans.er through a concave permeable fin is.analyzed by the local thermal non-equilibrium(LTNE)*** governing dimens.onal temperature equations.for the s.lid and fluid phas.s.of the porous.extended s.rface are modeled,and then are nondimens.onalized by s.itable dimens.onles. ***,the obtained nondimens.onal equations.are s.lved by the clique polynomial method(CPM).The effects.of s.veral dimens.onles. parameters.on the fin's.thermal profiles.are s.own by graphical ***,the current s.udy implements.deep neural s.ructures.to s.lve phys.cs.governed coupled equations.and the bes.-s.ited hyperparameters.are attained by comparis.n with various.network *** res.lts.of the CPM and phys.cs.nformed neural network(PINN)exhibit good agreement,s.gnifying that both methods.effectively s.lve the thermal modeling problem.

关键词： heat trans.er fin porous.fin local thermal non-equilibrium(LTNE)model phys.cs.informed neural network(PINN)

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