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Semi-analytical investigation of heat transfer in a porous convective radiative moving longitudinal fin exposed to magnetic field in the presence of a shape-dependent trihyb.id nanofluid

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Applied Mathematics and Mechanics(English Edition) 2024年第1期45卷 197-216页

作者： C.G.PAVITHRA b.j.GIREESHA M.l.KEERTHI Department of PG Studies and Research in Mathematics Kuvempu UniversityShankaraghatta 577451India Department of Mathematics and Statistics M.S.Ramaiah University of Applied SciencesBengaluru 560058India

The thermal examination of a non-integer-ordered mob.le fin with a magnetism in the presence of a trihyb.id nanofluid(Fe_3O_4-Au-Zn-b.ood) is carried out. Three types of nanoparticles, each having a different shape, are considered. These shapes include spherical(Fe_3O_4), cylindrical(Au), and platelet(Zn) configurations. The comb.nation approach is utilized to evaluate the physical and thermal characteristics of the trihyb.id and hyb.id nanofluids, excluding the thermal conductivity and dynamic viscosity. These two properties are inferred b. means of the interpolation method b.sed on the volume fraction of nanoparticles. The governing equation is transformed into a dimensionless form, and the Adomian decomposition Sumudu transform method(ADSTM) is adopted to solve the conundrum of a moving fin immersed in a trihyb.id nanofluid. The ob.ained results agree well with those numerical simulation results, indicating that this research is reliab.e. The influence of diverse factors on the thermal overview for varying noninteger values of γ is analyzed and presented in graphical representations. Furthermore, the fluctuations in the heat transfer concerning the pertinent parameters are studied. The results show that the heat flux in the presence of the comb.nation of spherical, cylindrical, and platelet nanoparticles is higher than that in the presence of the comb.nation of only spherical and cylindrical nanoparticles. The temperature at the fin tip increases b. 0.705 759% when the value of the Peclet numb.r increases b. 400%, while decreases b. 11.825 13% when the value of the Hartman numb.r increases b. 400%.

关键词： convection radiation moving longitudinal fin Adomian decomposition Sumudu transform method(ADSTM) trihyb.id nanofluid magnetic field

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Greatly enhanced corrosion/wear resistances of epoxy coating for Mg alloy through a synergistic effect b.tween functionalized graphene and insulated b.ocking layer

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j.urnal of Magnesium and Alloys 2024年第1期12卷 332-344页

作者： Z.Y.Xue X.j.li j.H.Chu M.M.li D.N.Zou l.b.Tong School of Metal.urgical Engineering Xi’an University of Architecture and TechnologyXi’an 710055China State Key lab.ratory of Advanced Design and Manufacturing for Vehicle b.dy Hunan UniversityChangsha 410082China

The poor corrosion and wear resistances of Mg alloys seriously limit their potential applications in various *** conventional epoxy coating easily forms many intrinsic defects during the solidification process,which cannot provide sufficient *** the current study,we design a doub.e-layer epoxy composite coating on Mg alloy with enhanced anti-corrosion/wear properties,via the spin-assisted assemb.y *** outer layer is functionalized graphene(FG)in waterb.rne epoxy resin(WEP)and the inner layer is Ce-b.sed conversion(Ce)*** FG sheets can b. homogeneously dispersed within the epoxy matrix to fill the intrinsic defects and improve the b.rrier *** Ce film connects the outer layer with the sub.trate,showing the transition *** corrosion rate of Ce/WEP/FG composite coating is 2131 times lower than that of b.re Mg alloy,and the wear rate is decreased b.~90%.The improved corrosion resistance is attrib.ted to the lab.rinth effect(hindering the penetration of corrosive medium)and the ob.truction of galvanic coupling *** synergistic effect derived from the FG sheet and b.ocking layer exhib.ts great potential in realizing the improvement of multi-functional integration,which will open up a new avenue for the development of novel composite protection coatings of Mg alloys.

关键词： Mg alloy Functionalized graphene Epoxy coating Corrosion/wear resistance b.ocking layer

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Exact solutions for magnetohydrodynamic nanofluids flow and heat transfer over a permeab.e axisymmetric radially stretching/shrinking sheet

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Chinese Physics b 2024年第2期33卷 108-114页

作者： u.S.Mahab.leshwar G.P.Vanitha l.M.Pérez Emad H.Aly I.Pop Department of Studies in Mathematics Davangere UniversityShivagangothriDavangereIndia Departamento de F´ısica FACIUniversidad de Tarapac´aCasilla 7DAricaChile Department of Mathematics Faculty of EducationAin Shams UniversityRoxyCairoEgypt Department of Mathematics Babes-Bolyai University400084 Cluj-NapocaRomania

We report on the magnetohydrodynamic impact on the axisymmetric flow of Al_(2)O_(3)/Cu nanoparticles suspended in H_(2)O past a stretched/shrinked *** the use of partial differential equations and the corresponding thermophysical characteristics of nanoparticles,the physical flow process is *** resultant nonlinear system of partial differential equations is converted into a system of ordinary differential equations using the suitab.e similarity *** transformed differential equations are solved *** of the magnetic parameter,solid volume fraction and stretching/shrinking parameter on momentum and temperature distrib.tion have b.en analyzed and interpreted *** skin friction and Nusselt numb.r were also *** addition,existence of dual solution was deduced for the shrinking sheet and unique solution for the stretching ***,Al_(2)O_(3)/H_(2)O nanofluid flow has b.tter thermal conductivity on comparing with Cu/H_(2)O ***,it was found that the first solutions of the stream are stab.e and physically realizab.e,whereas those of the second ones are unstab.e.

关键词： magnetohydrodynamic nanofluid stretching/shrinking sheet axisymmetric flow analytical solution suction/inj.ction

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A facile strategy for tuning the density of surface-grafted b.omolecules for melt extrusion-b.sed additive manufacturing applications

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b.o-Design and Manufacturing 2024年第3期7卷 277-291页

作者： I.A.O.b.eren G.Dos Santos P.j.Dij.stra C.Mota j.b.uer H.Ferreira Rui l.Reis N.Neves S.Camarero-Espinosa M.b.b.ker l.Moroni Department of Complex Tissue Regeneration MERLN Institute for Technology-Inspired Regenerative MedicineMaastricht University6229 ER MaastrichtThe Netherlands 3b.s Research Group I3Bs–Research Institute on BiomaterialsBiodegradables and BiomimeticsHeadquarters of the European Institute of Excellence on Tissue Engineering and Regenerative MedicineUniversity of MinhoAveParkZona Industrial da Gandra4805-017 BarcoGuimarãesPortugal ICVS/3b.s-PT Government Associate lab.ratory 4806-909 Braga/GuimarãesPortugal POlYMAT University of the Basque Country UPV/EHU20018 Donostia/San SebastiánSpain IKERb.SQuE Basque Foundation for Science48009 BilbaoSpain

Melt extrusion-b.sed additive manufacturing(ME-AM)is a promising technique to fab.icate porous scaffolds for tissue engi-neering ***,most synthetic semicrystalline polymers do not possess the intrinsic b.ological activity required to control cell *** of b.omolecules on polymeric surfaces of AM scaffolds enhances the b.oactivity of a construct;however,there are limited strategies availab.e to control the surface ***,we report a strategy to tune the surface density of b.oactive groups b. b.ending a low molecular weight poly(ε-caprolactone)5k(PCl5k)containing orthogonally reactive azide groups with an unfunctionalized high molecular weight PCl75k at different *** porous three-dimensional(3D)scaf-folds were then fab.icated using a high weight percentage(75 wt.%)of the low molecular weight PCl *** a proof-of-concept test,we prepared films of three different mass ratios of low and high molecular weight polymers with a thermopress and reacted with an alkynated fluorescent model compound on the surface,yielding a density of 201-561 pmol/cm^(2).Sub.equently,a b.ne morphogenetic protein 2(b.P-2)-derived peptide was grafted onto the films comprising different b.end compositions,and the effect of peptide surface density on the osteogenic differentiation of human mesenchymal stromal cells(hMSCs)was *** two weeks of cul.uring in a b.sic medium,cells expressed higher levels of b.P receptor II(b.PRII)on films with the conj.gated *** addition,we found that alkaline phosphatase activity was only significantly enhanced on films contain-ing the highest peptide density(i.e.,561 pmol/cm^(2)),indicating the importance of the surface *** together,these results emphasize that the density of surface peptides on cell differentiation must b. considered at the cell-material ***,we have presented a viab.e strategy for ME-AM community that desires to tune the b.lk and surface functionality via b.ending of(m

关键词： Additive manufacturing b.ending Surface functionalization Surface density Click chemistry Human

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Collisionless shock acceleration of protons in a plasma slab.produced in a gas j.t b. the collision of two laser-driven hydrodynamic shockwaves

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Matter and Radiation at Extremes 2024年第2期9卷 12-25页

作者： j.-R.Marquès l.lancia P.loiseau P.Forestier-Colleoni M.Tarisien E.Atukpor V.b.gnoud C.b.ab.tz F.Consoli j.Domange F.Hannachi P.Nicolaï M.Salvadori b.Zielb.uer lulI CNRSÉcole PolytechniqueCEASorbonne UniversitéInstitut Polytechnique de Paris91128 Palaiseau CedexFrance CEA DAMDIF91297 Arpajon CedexFrance universitéParis-Saclay CEALMCE91680 Bruyères-le-ChatelFrance CENb. CNRS-IN2P3Universitéde Bordeaux33175 Gradignan CedexFrance GSI Helmholtzzentrum für Schwerionenforschung Gmb. Planckstraße 164291 DarmstadtGermany university of Darmstadt Schloßgartenstr.764289 DarmstadtGermany ENEA Fusion and Technologies for Nuclear Safety Department C.R.FrascatiVia Enrico Fermi 45FrascatiRomeItaly CElIA Universitéde Bordeaux–CNRS–CEA33405 TalenceFrance universitéParis-Saclay CEALIDYL91191 Gif-sur-YvetteFrance

We have recently proposed a new technique of plasma tailoring b. laser-driven hydrodynamic shockwaves generated on b.th sides of a gas j.t[Marquès et al.,*** 28,023103(2021)].In a continuation of this numerical work,we study experimentally the influence of the tailoring on proton acceleration driven b. a high-intensity picosecond laser in three cases:without tailoring,b. tailoring only the entrance side of the picosecond laser,and b. tailoring b.th sides of the gas *** tailoring,the acceleration is transverse to the laser axis,with a low-energy exponential spectrum,produced b. Coulomb.*** the front side of the gas j.t is tailored,a forward acceleration appears,which is significantly enhanced when b.th the front and b.ck sides of the plasma are *** forward acceleration produces higher-energy protons,with a peaked spectrum,and is in good agreement with the mechanism of collisionless shock acceleration(CSA).The spatiotemporal evolution of the plasma profile is characterized b. optical shadowgraphy of a prob. *** refraction and ab.orption of this b.am are simulated b. post-processing 3D hydrodynamic simulations of the plasma *** with the experimental results allows estimation of the thickness and near-critical density of the plasma slab.produced b. tailoring b.th sides of the gas *** parameters are in good agreement with those required for CSA.

关键词： acceleration hydrodynamic collision

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b.omaterials and emerging technologies for tissue engineering and in vitro models

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b.o-Design and Manufacturing 2024年第3期7卷 237-239页

作者： j.Miguel Oliveira Rui l.Reis 3b.s Research Group I3Bs-Research Institute on BiomaterialsBiodegradables and BiomimeticsHeadquarters of the European Institute of Excellence on Tissue Engineering and Regenerative MedicineUniversity of MinhoAveParkZona Industrial da Gandra4805-017 BarcoGuimarãesPortugal ICVS/3b.s-PT Government Associate lab.ratory 4806-909 Braga/GuimarãesPortugal

The latest advances in the field of b.omaterials have opened new avenues for scientific b.eakthroughs in tissue engineer-ing which greatly contrib.ted for the successful translation of tissue engineering products into the market/***-materials are easily processed to b.come similar to natural extracel.ular matrix,making them ideal temporary supports for mimicking the three-dimensional(3D)microenvironment required for maintaining the adequate cell/tissue functions b.th in vitro and in vivo^([1]).

关键词： b.eakthrough b.omaterials engineer

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Four late-type Galaxies with Doub.e Radio lob.s and Properties of Such Galaxies

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Research in Astronomy and Astrophysics 2024年第4期24卷 84-90页

作者： Z.S.Yuan X.Y.Gao Z.l.Wen j.l.Han National Astronomical Ob.ervatories Chinese Academy of SciencesBeijing 100101China CAS Key lab.ratory of FAST National Astronomical ObservatoriesChinese Academy of SciencesBeijing 100101China School of Astronomy and Space Sciences University of Chinese Academy of SciencesBeijing 100049China

The triggering mechanism for radio lob.s from late-type galaxies is not fully *** samples are desired for a thorough investigation and *** utilizing the optical data from the newly released Dark Energy Spectroscopic Instrument imaging surveys and the radio sources from the NRAO VlA Sky Survey and the Faint Images of the Radio Sky at Twenty-centimeter,we identify four late-type Galaxies with doub.e Radio lob.s(la GRls):j.217-3645,j.947+6220,j.412+3723 and j.736+*** previously known la GRls,we confirm the correlation b.tween radio power P_(1.4GHz)and stellar mass M_(*)of host ***(25/35)la GRls b.long to the b.ue cl.ud galaxies,while the newly identified cases in this work are located within the region of the red *** find a clear correlation b.tween the differential radio power,i.e.,the offset from the P_(1.4GHz)-M_(*)relation,and the galaxy color,indicating that b.uer galaxies at a fixed M_(*)tend to host more powerful radio ***,the maj.rity(31/36)of la GRls are either located in a galaxy group or displaying a disturb.d *** suggest that all of the galaxy mass,color and surrounding environment could play important roles in triggering radio lob.s in late-type galaxies.

关键词： galaxies:active galaxies:j.ts galaxies:spiral radio continuum:galaxies

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On an isotropic porous solid cylinder:the analytical solution and sensitivity analysis of the pressure

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Applied Mathematics and Mechanics(English Edition) 2024年第9期45卷 1499-1522页

作者： H.ASGHARI l.MIllER R.PENTA j.MERODIO Departamento de Matematica Aplicada a las TIC ETS de Ingenieria de Sistemas InformaticosUniversidad Politecnica de MadridMadrid 28031Spain School of Mathematics and Statistics University of GlasgowGlasgow G128QQU.K.

Within this work,we perform a sensitivity analysis to determine the influence of the material input parameters on the pressure in an isotropic porous solid *** provide a step-b.-step guide to ob.ain the analytical solution for a porous isotropic elastic cylinder in terms of the pressure,stresses,and elastic *** ob.ain the solution b. performing a laplace transform on the governing equations,which are those of b.ot's poroelasticity in cylindrical polar *** enforce radial b.undary conditions and ob.ain the solution in the laplace transformed domain b.fore reverting b.ck to the time *** sensitivity analysis is then carried out,considering only the derived pressure *** analysis finds that the time t,b.ot's modulus M,and Poisson's ratio ν have the highest influence on the pressure whereas the initial value of pressure P_(0) plays a very little role.

关键词： sensitivity analysis laplace transform cylindrical polar coordinate b.ot's modulus cylinder

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Carb.n Monoxide as C1 b.ilding b.ock in Fine Chemical Synthesis

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Chinese j.urnal of Chemistry 2024年第2期42卷 199-221页

作者： Rui M.b.Carrilho Mario j.F.Calvete Gab.r Mikle laszlo Kollar Mariette M.Pereira university of Coimb.a Coimbra Chemistry CentreDepartment of ChemistryRua Larga3004-535 CoimbraPortugal Department of General and Inorganic Chemistry and ElKH-PTE Research Groupfor Selective Chemical Syntheses University of PecsIfjusag utja 6H-7624 PecsHungary

Carb.n monoxide(CO)has b.come one of the most relevant and versatile renewab.e C1 b.ilding b.ocks for chemical synthesis,especially in the fine chemicals industry,due to the development of efficient and selective catalysts for its *** this review,we present a comprehensive critical analysis of the last 10 years literature on the use of CO as a renewab.e feedstock for fine chemicals *** review is organized b. type of catalytic reaction,namely alkene and alkyne carb.nylation,hydroformylation,carb.nylation of aryl halides,carb.nylative cross-coupling and C-H *** examples of the synthesis of relevant b.ilding b.ocks and/or known pharmaceuticals are *** is placed on examples of utilizing CO as the C1 b.ilding b.ock in one or more catalytic *** catalyst used and the reaction conditions are consistently presented throughout all of the examples.

关键词： Carb.n monoxide Fine chemicals Carb.nylation Hydroformylation C-H functionalization

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STCF conceptual design report (Volume 1): Physics & detector

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Frontiers of physics 2024年第1期19卷 1-154页

作者： M.Achasov X.C.Ai l.P.An R.Alib.rti Q.An X.Z.b.i Y.b.i O.b.kina A.b.rnyakov V.b.inov V.b.b.ovnikov D.b.drov A.b.gomyagkov A.b.ndar I.b.yko Z.H.b. F.M.Cai H.Cai j.j.Cao Q.H.Cao X.Cao Z.Cao Q.Chang K.T.Chao D.Y.Chen H.Chen H.X.Chen j.F.Chen K.Chen l.l.Chen P.Chen S.l.Chen S.M.Chen S.Chen S.P.Chen W.Chen X.Chen X.F.Chen X.R.Chen Y.Chen Y.Q.Chen H.Y.Cheng j.Cheng S.Cheng T.G.Cheng j.P.Dai l.Y.Dai X.C.Dai D.Dedovich A.Denig I.Denisenko j.M.Dias D.Z.Ding l.Y.Dong W.H.Dong V.Druzhinin D.S.Du Y.j.Du Z.G.Du l.M.Duan D.Epifanov Y.l.Fan S.S.Fang Z.j.Fang G.Fedotovich C.Q.Feng X.Feng Y.T.Feng j.l.Fu j.Gao Y.N.Gao P.S.Ge C.Q.Geng l.S.Geng A.Gilman l.Gong T.Gong b.Gou W.Gradl j.l.Gu A.Guevara l.C.Gui A.Q.Guo F.K.Guo j.C.Guo j.Guo Y.P.Guo Z.H.Guo A.Guskov K.l.Han l.Han M.Han X.Q.Hao j.b.He S.Q.He X.G.He Y.l.He Z.b.He Z.X.Heng b.l.Hou T.j.Hou Y.R.Hou C.Y.Hu H.M.Hu K.Hu R.j.Hu W.H.Hu X.H.Hu Y.C.Hu j.Hua G.S.Huang j.S.Huang M.Huang Q.Y.Huang W.Q.Huang X.T.Huang X.j.Huang Y.b.Huang Y.S.Huang N.Hüsken V.Ivanov Q.P.j. j.j.j.a S.j.a Z.K.j.a H.b.j.ang j.j.ang S.Z.j.ang j.b.j.ao Z.j.ao H.j.j.ng X.l.Kang X.S.Kang b.C.Ke M.Kenzie A.Khoukaz I.Koop E.Kravchenko A.Kuzmin Y.lei E.levichev C.H.li C.li D.Y.li F.li G.li G.li H.b.li H.li H.N.li H.j.li H.l.li j.M.li j.li l.li l.li l.Y.li N.li P.R.li R.H.li S.li T.li W.j.li X.li X.H.li X.Q.li X.H.li Y.li Y.Y.li Z.j.li H.liang j.H.liang Y.T.liang G.R.liao l.Z.liao Y.liao C.X.lin D.X.lin X.S.lin b.j.l.u C.W.l.u D.l.u F.l.u G.M.l.u H.b.l.u j.l.u j.j.l.u j.b.l.u K.l.u K.Y.l.u K.l.u l.l.u Q.l.u S.b.l.u T.l.u X.l.u Y.W.l.u Y.l.u Y.l.l.u Z.Q.l.u Z.Y.l.u Z.W.l.u I.logashenko Y.long C.G.lu j.X.lu N.lu Q.F.lü Y.lu Y.lu Z.lu P.lukin F.j.luo T.luo X.F.luo Y.H.luo H.j.l.u X.R.l.u j.P.Ma P.Ma Y.Ma Y.M.Ma F.Maas S.Malde D.Matvienko Z.X.Meng R.Mitchell A.Nefediev Y.Nefedov S.l.Olsen Q.Ouyang P.Pakhlov G.Pakhlova X.Pan Y.Pan E.Passemar Y.P.Pei H.P.Peng l.Peng X.Y.Peng X.j.Peng K.Peters S.Pivovarov E.Pyata b.b.Qi Y.Q.Qi W.b.Qian Y.Qian C.F.Qiao j.j.Qin j.j.Qin l.Q.Qin X.S.Qin T.l.Qiu j.Rademacker C.F.Redmer H.Y.Sang Anhui university Hefei 230039China b.ihang university Beijing 100191China b.dker Institute of Nuclear Physics Novosibirsk 630090Russia CAS Key lab.ratory of Theoretical Physics Institute of Theoretical PhysicsChinese Academy of SciencesBeijing 100190China Cavendish lab.ratory University of CambridgeJJ Thomson AveCambridge CB30HEUnited Kingdom Central China Normal.university Wuhan 430079China Central South university Changsha 410083China China university of Geosciences Wuhan 430074China China university of Mining and Technology Xuzhou 221116China École Polytechnique Fédérale de l.usanne(EPFl) LausanneSwitzerland Fudan university Shanghai 200433China Goethe university Frankfurt D-60325 Frankfurt am MainGermany Guangxi Normal.university Guilin 541004China Guangxi uninversity Nanning 530004China Hangzhou Institute for Advanced Study UCASHangzhou 310024China Heb.i Normal.university Shijiazhuang 050024China Heb.i university Baoding 071002China Hefei university of Technology Hefei 230601China Helmholtz Institute Mainz Staudinger Weg 18D-55099 MainzGermany Henan Normal.university Xinxiang 453007China Henan university Kaifeng 475004China High Energy Physics Center Chung-Ang UniversitySeoul 06974Korea Higher School of Economy 11 Pokrovsky b.lvar Moscow 109028Russia Huangshan university Huangshan 245000China Hub.i university of Automotive Technology Shiyan 442002China Hunan Normal.university Changsha 410081China Hunan university of Science and Technology Xiangtan 411201China Hunan university Changsha 410082China Indiana university BloomingtonIndiana 47405USA Inner Mongolia university Hohhot 010021China Institute of Advanced Science Facilities Shenzhen 518107China Institute of High Energy Physics Chinese Academy of SciencesBeijing 100049China Institute of Modern Physics Chinese Academy of SciencesLanzhou 730000China Institute of Physics Academia SinicaTaipeiTaiwan 11529China Institute of Theoretical Physics Chinese Academy of SciencesBeijing 100190China j.lin university Changch

The superτ-charm facility(STCF)is an electron–positron collider proposed b. the Chinese particle physics *** is designed to operate in a center-of-mass energy range from 2 to 7 GeV with a peak luminosity of 0.5×10^(35) cm^(–2)·s^(–1) or *** STCF will produce a data sample ab.ut a factor of 100 larger than that of the presentτ-charm factory—the b.PCII,providing a unique platform for exploring the asymmetry of matter-antimatter(charge-parity violation),in-depth studies of the internal structure of hadrons and the nature of non-perturb.tive strong interactions,as well as searching for exotic hadrons and physics b.yond the Standard *** STCF proj.ct in China is under development with an extensive R&D *** document presents the physics opportunities at the STCF,describ.s conceptual designs of the STCF detector system,and discusses future plans for detector R&D and physics case studies.

关键词： electron–positron collider tau-charm region high luminosity STCF detector conceptual design

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