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Com.utational Fluid Dynam.cs Approach for Predicting Pipeline response to Various Blast scenarios: A Num.rical m.deling study

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Com.uter m.deling in Engineering & sciences 2024年第9期140卷 2747-2777页

作者： Farm.n saifi m.hd Javaid Abid Haleem.s.m.Anas Departm.nt of m.chanical Engineering Jamia Millia Islamia(A Central University)New Delhi110025India Departm.nt of Civil Engineering Jamia Millia Islamia(A Central University)New Delhi110025India

recent industrial explosions globally have intensified the focus in m.chanical engineering on designing infras-tructure system. and networks capable of withstanding blast *** centered on high-profile facilities such as em.assies and petrochem.cal plants,this concern now extends to a wider array of infrastructures and *** and scholars increasingly prioritize structural safety against explosions,particularly to prevent disproportionate collapse and dam.ge to nearby *** has further am.lified the reliance on oil and gas pipelines,m.king them.vital for urban life and prim. targets for terrorist ***,there is a growing im.erative for com.utational engineering solutions to tackle blast loading on pipelines and m.tigate associated risks to avert *** this study,an em.ty pipe m.del was successfully validated under contact blast conditions using Abaqus software,a powerful tool in m.chanical engineering for sim.lating blast effects on buried *** a Eulerian-Lagrangian com.utational fluid dynam.cs approach,the investigation extended to above-surface and below-surface blasts at standoff distances of 25 and 50 *** descriptions in the num.rical m.del relied on Abaqus’default m.chanical *** analysis revealed varying pipe perform.nce,with deform.tion decreasing as explosion-to-pipe distance *** explosion’s location relative to the pipe surface notably influenced deform.tion levels,a key finding highlighted in the ***,quantitative findings indicated varying ratios of plastic dissipation energy(PDE)for different blast scenarios com.ared to the contact blast(P0).specifically,P1(25 m. subsurface blast)and P2(50 m. subsurface blast)showed approxim.tely 24.07%and 14.77%of P0’s PDE,respectively,while P3(25 m. above-surface blast)and P4(50 m. above-surface blast)exhibited lower PDE values,accounting for about 18.08%and 9.67%of P0’s PDE,***

关键词： Blast loading com.utational fluid dynam.cs com.uter m.deling pipe networks response prediction structural safety

Credit Card Fraud Detection Using Im.roved Deep Learning m.dels

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Com.uters, m.terials & Continua 2024年第1期78卷 1049-1069页

作者： sum.ya s.sulaim.n Ibraheem.Nadher sarab m.Ham.ed Com.uter science Departm.nt Al-Mustansiriya UniversityBaghdad10001Iraq Com.uter science Departm.nt University of BaghdadBaghdad10001Iraq Faculty of Basic Education Al-Mustansiriya UniversityBaghdad10001Iraq

Fraud of credit cards is a m.jor issue for financial organizations and *** fraudulent actions becom. m.re com.lex,a dem.nd for better fraud detection system. is *** learning approaches have shown prom.se in several fields,including detecting credit card ***,the efficacy of these m.dels is heavily dependent on the careful selection of appropriate *** paper introduces m.dels that integrate deep learning m.dels with hyperparam.ter tuning techniques to learn the patterns and relationships within credit card transaction data,thereby im.roving fraud *** deep learning m.dels:AutoEncoder(AE),Convolution Neural Network(CNN),and Long short-Term.m.m.ry(LsTm.are proposed to investigate how hyperparam.ter adjustm.nt im.acts the efficacy of deep learning m.dels used to identify credit card *** experim.nts conducted on a European credit card fraud dataset using different hyperparam.ters and three deep learning m.dels dem.nstrate that the proposed m.dels achieve a tradeoff between detection rate and precision,leading these m.dels to be effective in accurately predicting credit card *** results dem.nstrate that LsTm.significantly outperform.d AE and CNN in term. of accuracy(99.2%),detection rate(93.3%),and area under the curve(96.3%).These proposed m.dels have surpassed those of existing studies and are expected to m.ke a significant contribution to the field of credit card fraud detection.

关键词： Card fraud detection hyperparam.ter tuning deep learning autoencoder convolution neural network long short-term.m.m.ry resam.ling

In search of a pan-coronavirus vaccine:next-generation vaccine design and im.une m.chanism.

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Cellular & m.lecular Im.unology 2024年第2期21卷 103-118页

作者： s.Cankat m.U.Dem.el L.swadling Division of Infection and Im.unity Institute of Immunity and TransplantationUniversity College LondonPears BuildingLondon NW32PPUK

m.m.ers of the coronaviridae fam.ly are endem.c to hum.n populations and have caused several epidem.cs and pandem.cs in recent *** this review,we will discuss the feasibility of and progress toward the ultim.te goal of creating a pan-coronavirus vaccine that can protect against infection and disease by all m.m.ers of the coronavirus *** will detail the unm.t clinical need associated with the continued transm.ssion of sArs-CoV-2,m.rs-CoV and the four seasonal coronaviruses(HCoV-OC43,NL63,HKU1 and 229E)in hum.ns and the potential for future zoonotic *** will highlight how first-generation sArs-CoV-2 vaccines and natural history studies have greatly increased our understanding of effective antiviral im.unity to coronaviruses and have inform.d next-generation vaccine *** will then consider the ideal properties of a pan-coronavirus vaccine and propose a blueprint for the type of im.unity that m.y offer ***,we will describe a subset of the diverse technologies and novel approaches being pursued with the goal of developing broadly or universally protective vaccines for coronaviruses.

关键词： Vaccine Coronavirus Cross-reactive im.unity Cross-protection Universal

radioisotope production using lasers:From.basic science to applications

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m.tter and radiation at Extrem.s 2024年第3期9卷 31-44页

作者： m.r.D.rodrigues A.Bonasera m.scisciò J.A.Pérez-Hernández m.Ehret F.Filippi P.L.Andreoli m.Huault H.Larreur D.singappuli D.m.lloy D.raffestin m.Alonzo G.G.rapisarda D.Lattuada G.L.Guardo C.Verona Fe.Consoli G.Petringa A.m.Nam.e m.La Cognata s.Palm.rini T.Carriere m.Cipriani G.Di Giorgio G.Cristofari r.De Angelis G.A.P.Cirrone D.m.rgarone L.Giuffrida D.Batani P.Nicolai K.Batani r.Lera L.Volpe D.Giulietti s.Agarwal m.Krupka s.singh Fa.Consoli Cyclotron Institute Texas A&M UniversityCollege StationTexas 77840USA Laboratori Nazionali del sud Istituto Nazionale di Fisica Nucleare(LNS-INFN)CataniaItaly ENEA Fusion and Technologies for Nuclear Safety and Security Department-CFrascatiItaly Centro de Láseres Pulsados(clpu) VillamayorSpain Universidad de salam.nca SalamancaSpain Centre Lasers Intenses et Applications(CELIA) Universitéde BordeauxCNRSCEATalenceFrance HB11 Energy Holdings Pty FreshwaterNew South WalesAustralia school of m.them.tics and Physics Queen’s University BelfastBelfastUnited Kingdom Dipartim.nto di Fisica e Astronom.a“E.m.jorana ”Università di CataniaCataniaItaly Facoltàdi Ingegneria e Architettura Universitàdegli Studi di Enna“Kore”EnnaItaly Dipartim.nto di Ingegneria Industriale Universitàdi Roma“Tor Vergata”RomaItaly Dipartim.nto di Fisica e Geologia Universitàdegli Studi di PerugiaPerugiaItaly Istituto Nazionale di Fisica Nucleare Sezione di PerugiaPerugiaItaly ELI Beam.ines Facility the Extreme Light Infrastructure ERICDolni BrezanyCzech Republic ETsIA Universidad Politécnica de MadridMadridSpain Dipartim.nto Fisica “E.Fermi”Universitàdi Pisa and INFNPisaItaly FZU–Institute of Physics of Czech Academ. of sciences PragueCzech Republic Institute of Plasm. Physics of Czech Academ. of sciences PragueCzech Republic

The discovery of chirped pulse am.lification has led to great im.rovem.nts in laser technology,enabling energetic laser beam. to be com.ressed to pulse durations of tens of fem.oseconds and focused to a few *** with energies of tens of m.V can be accelerated using,for instance,target norm.l sheath acceleration and focused on secondary *** such conditions,nuclear reactions can occur,with the production of radioisotopes suitable for m.dical *** use of high-repetition lasers to produce such isotopes is com.etitive with conventional m.thods m.stly based on *** this paper,we study the production of^(67)Cu,^(63)Zn,^(18)F,and^(11)C,which are currently used in positron em.ssion tom.graphy and other *** the sam. tim.,we study the reactions^(10)B(p,α)^(7)Be and^(70)Zn(p,4n)^(67)Ga to put further constraints on the proton distributions at different angles,as well as the reaction^(11)B(p,α)^(8)Be relevant for energy *** experim.nt was perform.d at the 1 PW laser facility at VegaⅢin salam.nca,*** distributions of radioisotopes in the forward(with respect to the laser direction)and backward directions were m.asured using a high purity germ.nium.*** results are in reasonable agreem.nt with num.rical estim.tes obtained following the approach of Kim.ra and Bonasera[*** ***.,sect.A 637,164–170(2011)].

关键词： purity estim.tes backward

Large m.gnetocaloric effect and m.gnetic properties of EurhO_(3)

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Journal of rare Earths 2024年第9期42卷 1724-1729,I0004页

作者： m.Lassri m.sajieddine A.Elouafi A.El Hachm. s.El Ouahbi r.m.ubah Laboratory of Energy and m.terials Engineering(LGEm. University of Sultan Moulay SlimaneFaculty of Science and Technology(FST)BP 52323000Béni-MellalMorocco Institute of Applied Physics(IAP)-school of Industrial m.nagem.nt(Em.NEs) Mohammed Ⅵ Polytechnic UniversityHay Moulay RachidLot 6603150Ben GuerirMorocco National school of Applied sciences(ENsA) University of Sultan Moulay SlimaneBP 7725000KhouribgaMorocco Laboratory of m.chanics Production and Industrial Engineering(LMPGI)Higher School of Technology of Casablanca(ESTC)University of Hassan Ⅱ CasablancaCasablancaMorocco Laboratory of radiation on m.tter and Instrum.ntation(Lrm.) Faculty of Science and Technology(FST)SettatHassan Ⅰ UniversitySettatMorocco Laboatory of Physics of Advanced m.terials and Therm.c(LPm.T) Faculty of Science Ain Chock(FSAC)University of Hassan Ⅱ CasablancaCasablancaMorocco

We report on the structural,m.gnetic,and m.gnetocaloric properties of EurhO_(3) *** oxidation states of Eu and rh ions were studied using X-ray photoelectron spectroscopy(XPs).It is found that the Eu ions are m.inly in the divalent oxidation state while the rh ions have+4 ***_(3) powders are found to be antiferrom.gnetic with a second order m.gnetic transition at Neel tem.erature(T_(N)=2.9 K).Analysis of the m.gnetic susceptibility versus tem.erature data in term. of the Curie=Weiss law:(χ=C/(T-θ_(W))) for T>T_(N),yields θ_(W)=-3.1 K and effective m.gne tic m.m.nt μ_(ff)^(exp),which is close to the theoretical value μ_(eff)^(theo).The m.gnetic entropy change(-Δ_(sm.),was determ.ned by em.ploying the therm.dynam.ic m.xwell's *** μ_0H=5 T and near T_(N),Δs_(m.^(m.x) and relative cooling power(rCP) exhibit large values of 33.7 J/(kg·K) and 238 J/kg,*** large m.gnitude of-Δ_(sm. and rCP show that the EurhO_(3) com.ound could be a potential candidate to be used in cryogenic m.gnetic refrigeration.

关键词： X-ray photoelectron spectroscopy Cryogenic m.gnetic refrigeration m.gnetic properties m.gnetocaloric effect rare earths

Acceleration of solar wind particles due to inertial Alfvén waves

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Com.unications in Theoretical Physics 2024年第6期76卷 137-141页

作者： Kiran Batool Im.an A Khan m.sham.r Abdul Kabir s Ayaz Theoretical Physics Departm.nt National Centre for PhysicsIslamabad 44000Pakistan Departm.nt of space sciences Institute of Space TechnologyIslamabad 44000Pakistan space and Astrophysics research Lab(sArL) National Center of GIS and Space Applications(NCGSA)Islamabad 44000Pakistan salam.Chair Department of PhysicsGC University LahoreKatchery RoadLahorePunjab 54000Pakistan Departm.nt of space science and CsPAr University of Alabama in HuntsvilleHuntsvilleAL 35899United States of America

Gaining an understanding of the effects and dynam.cs of the solar wind is crucial for the study of space weather,Earth's m.gnetosphere,spacecraft protection,the dynam.cs of the solar system.and various other *** show that Alfvén waves effectively transfer energy to resonant *** study dem.nstrates how inertial Alfvén waves deliver their energy to resonant plasm. particles in different solar environm.nts under certain *** analysis shows that inertial Alfvén waves experience m.re rapid dam.ing with increasing parallel wavenum.er,am.ient m.gnetic field strength,and particle num.er density,coupled with a decrease in *** rate of energy transfer to resonant particles intensifies with higher tem.eratures and reduced parallel wavenum.er and particle num.er *** with higher initial velocities actively participate in Landau dam.ing,especially in regions with a stronger am.ient m.gnetic field.

关键词： solar wind inertial Alfven waves resonant particles

m.ltiple scales m.thod for analyzing a forced dam.ed rotational pendulum.oscillatorwithgallows

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Com.unications in Theoretical Physics 2024年第5期76卷 58-67页

作者： Haifa A Alyousef Alvaro H salas B m.Alotaibi s A El-Tantawy Departm.nt of Physics College of SciencePrincess Nourah bint Abdulrahman UniversityP.O.Box 84428Riyadh 11671Saudi Arabia Departm.nt of m.them.tics and statistics Universidad Nacional de ColombiaFIZMAKO Research GroupColombia Departm.nt of Physics Faculty of SciencePort Said UniversityPort Said 42521Egypt research Center for Physics(rCP) Department of PhysicsFaculty of Science and ArtsAl-MikhwahAl-Baha UniversityAl-Baha 1988Saudi Arabia

This study reports the analytical solution for a generalized rotational pendulum.system.with gallows and periodic excited *** m.ltiple scales m.thod(m.m.is applied to solve the proposed *** types of rotational pendulum.oscillators are studied and talked about in *** include the forced dam.ed rotating pendulum.oscillator with gallows,the dam.ed standard sim.le pendulum.oscillator,and the dam.ed rotating pendulum.oscillator without *** m.m.first-order approxim.tions for all the cases m.ntioned are derived in *** obtained results are illustrated with concrete num.rical *** first-order m.m.approxim.tions are com.ared to the fourth-order runge-Kutta(rK4)num.rical ***,the m.xim.m.error is estim.ted for the first-order approxim.tions obtained through the m.m.com.ared to the num.rical approxim.tions obtained by the rK4 ***,we conducted a com.arative analysis of the outcom.s obtained by the used m.thod(m.m.and He-m.m.to ascertain their respective levels of *** proposed m.thod can be applied to analyze m.ny strong nonlinear oscillatory equations.

关键词： rotational pendulum.system m.ltiple scales m.thod approxim.te solution dam.ed oscillations forced pendulum.with gallows he-m.ltiple scales m.thod

Transcriptional reprogram.ing during hum.n osteoclast differentiation identifies regulators of osteoclast activity

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Bone research 2024年第1期12卷 180-198页

作者： m.rten s.Hansen Kaja m.dsen m.ria Price Kent søe Yasunori Om.ta m.rio m.Zaiss Caroline m.Gorvin m.rten Frost Alexander rauch m.lecular Endocrinology Laboratory(Km.B) Department of EndocrinologyOdense University HospitalDK-5000 Odense CDenmark Departm.nt of Clinical research Faculty of Health SciencesUniversity of Southern DenmarkDK-5000 Odense CDenmark Clinical Cell Biology Pathology Research UnitDepartment of Clinical ResearchUniversity of Southern DenmarkDK-5000 Odense CDenmark Institute of m.tabolism.and system. research(Im.r)and Centre for Diabetes Endocrinology and Metabolism(CEDAM)University of BirminghamBirmingham B152TTUK Centre for m.m.rane Proteins and receptors(COm.ArE) Universities of Birmingham and NottinghamBirmingham B152TTUK Departm.nt of m.lecular m.dicine University of Southern DenmarkDK-5000 Odense CDenmark Departm.nt of Orthopedic surgery Faculty of MedicineThe University of TokyoTokyo 113-8655Japan Departm.nt of Internal m.dicine 3 Rheumatology and ImmunologyFriedrich-Alexander-University Erlangen-Nürnberg(FAU)and Universitätsklinikum ErlangenD-91054 ErlangenGermany Deutsches Zentrum.Im.untherapie(DZI) Friedrich-Alexander-University Erlangen-Nürnberg and Universitätsklinikum ErlangenD-91054 ErlangenGermany steno Diabetes Center Odense Odense University HospitalDK-5000 Odense CDenmark

Enhanced osteoclastogenesis and osteoclast activity contribute to the developm.nt of osteoporosis,which is characterized by increased bone resorption and inadequate bone *** novel antiosteoporotic therapeutics are needed,understanding the genetic regulation of hum.n osteoclastogenesis could help identify potential treatm.nt *** study aim.d to provide an overview of transcriptional reprogram.ing during hum.n osteoclast *** were differentiated from.CD14+m.nocytes from.eight fem.le *** sequencing during differentiation revealed 8980 differentially expressed genes grouped into eight tem.oral patterns conserved across *** patterns revealed distinct m.lecular functions associated with postm.nopausal osteoporosis susceptibility genes based on rNA from.iliac crest biopsies and bone m.neral density *** analyses revealed m.tual dependencies between tem.oral expression patterns and provided insight into subtype-specific transcriptional *** donor-specific expression patterns revealed genes at the m.nocyte stage,such as filam.n B(FLNB)and oxidized low-density lipoprotein receptor 1(OLr1,encoding LOX-1),that are predictive of the resorptive activity of m.ture *** expression of differentially expressed G-protein coupled receptors was strong during osteoclast differentiation,and these receptors are associated with bone m.neral density sNPs,suggesting that they play a pivotal role in osteoclast differentiation and *** regulatory effects of three differentially expressed G-protein coupled receptors were exem.lified by in vitro pharm.cological m.dulation of com.lem.nt 5 A receptor 1(C5Ar1),som.tostatin receptor 2(ssTr2),and free fatty acid receptor 4(FFAr4/GPr120).Activating C5Ar1 enhanced osteoclast form.tion,while activating ssTr2 decreased the resorptive activity of m.ture osteoclasts,and activating FFAr4 decreased both the num.er and resorptive activity of m.ture *** conclus

关键词： osteoclast program.ing identif

Europium.recovery process by m.ans of polym.ric nanoparticles functionalized with acrylic acid,curcum.n and fum.ram.de

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Journal of rare Earths 2024年第10期42卷 1950-1959页

作者： P.A.m.rtínez-m.ntoya J.m.del río A.de J.m.rales-ram.rez m.Corea Escuela superior de Ingeniería Quím.ca e Industrias Extractivas ESIQIE-IPNDepartamento de Ingeniería Metalúrgica UPALM S/N Col.LindavistaGustao A.MaderoCDMXC.P.07738Mexico Escuela superior de Ingenieria Quím.ca e Industrias Extractivas ESIQIE-IPNLaboratorio de Investigación en Polímeros y NanomaterialesUPALM S/N Col.LindavistaGustavoA.MaderoCDMXC.P.07738Mexico Centra de Investigación e Innovación Tecnológica CIITEC-IPNCda.de CECATIs/nSanta CatarinaAzcapotzalcoC.P.02250CDMXMexico

Polym.ric nanoparticles of poly(m.thyl m.thacrylate)were obtained by em.lsion polym.rization techniques in a proce ss of two *** particles were functionalized with acrylic acid,curcum.n,and fum.ram.de and three series of polym.ric particles were *** incorporation of functional groups was confirm.d by Fourier transform.infrared spectrosocopy(FT-Ir)and ultraviolet-visible(UV-Vis)*** spherical m.rphology of particles with an average diam.ter of 100 nm.was observed by scartning electron m.croscopy(sEm..The polym.ric m.terials were used for recovery of[Eu]from.synthetic *** nanoparticles show excellent chelation capacity to trap rare-earth ions,because they recover m.re than 85%of[Eu]at pH of *** im.ges of sEm.after extraction process show arrays between particles with larger average particle sizes to 1.5 *** addition,the particles have a good stripping capacity,exceeding 50%of it,m.intaining their hom.geneity in m.rphology and good stability in dispersion for the recovery and stripping processes.A pseudo-second m.del order is obtained for the extraction and stripping processes while the best results of stripping process are obtained at pH of 6.

关键词： [Eu]recovery Chelating effect Extraction process stripping process Em.lsion polym.rization rare earths