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简介：Nanoparticulate流动发生在大量自然现象和工程应用程序并且因此，吸引了许多注意。现在的论文的目的是提供在最后十年进行的研究的评论。盖住的研究在管子和隧道中由于凝结联系粒子，时刻的Taylor系列扩大方法，和nanoparticle分布到monodisperse和polydisperse的Brownian凝结流动，喷气流动，和混合的层并且在火焰合成和免职的过程。

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简介：BackgroundInresponsetotheevolutionofscienceandtechnologyfromcompartmentalizationtoreunification,thestudyofcomplexsystemsandmulti-scalemethodologyhasreceivedincreasingattentionfromvariousscientificdisciplinesandengineeringfields,somuchsothatcomplexityhassometimesbeencalledthescienceofthe21stcenturywithmulti-scalemethodologyasanaccompanyingchallenge.

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简介：Utilizationofwindenergyisapromisingwaytogeneratepower,andwindturbinebladesplayakeyroleincollectingthewindenergyeffectively.Thispaperattemptstomeasurethedeformationparameterofwindturbinebladesinmechanicsexperimentsusingavideometricmethod.Inviewthatthebladesexperiencesmallbucklingdeformationandlargeintegraldeformationsimultaneously,weproposedaparallelnetworkmeasurement(PNM)methodincludingthekeytechniquessuchascameranetworkconstruction,c...

简介：Theinelasticseismicresponsesofshear-typemultistoreybuildingswithregularasymmetrywereanalyzed.Theeffectsofthefundamentallateralperiod,thefundamentalfrequencyratiooftranslationaltotorsional,theeccentricratio,earthquakeintensityandorthogonalearthquakeexcitationsoninelasticdisplacementandductilitywerestudiedrespectively.Numericalresultsshowthataforementionedfactorsinfluencetheseismicresponsesofthebuildings.Theeffectoftheorthogonalinputofgroundmotionislikelytoberestrictedtothemovingstatusofeccentricelements.

简介：Experimentalresultsontheinstabilityoftheisothermalnatural-convectionboundarylayeraroundaverticalheatedflatplatearepresented.ItisdemonstratedthatthecharacteristicsoftheinstabilitywaveintheouterlayerisconsistentwiththecalculationofBrewster&Gebhart.Afteraninitialgrowthofitslowfrequencycomponentsatthedownstreamsideoftheturningpointoftheneutralcurve(Gr≈120)itscomparativelyhigherfrequencycomponentsdevelopandbecometurbulentsubsequentlywithabuoyancysubrangeinitspowerspectra.Simultane-ously,inthemeasurementattheinnerlayernearthewallaviscousinstabilitysignalthesameastheTollmien-Schlichtingwavesinordinaryboundarylaycranditssub-harmonicsinamuchhigherfrequencydomainisdiscoveredandaninertialsubrangecanbeobservedinthespectraatGr≈378.6.

简介：Mostfluidflowsinnatureandengineeringapplicationsareinthestateofturbulence.Turbulentmotionsusuallyexhibitawiderangeofspatialandtemporalscales,suchastheflowofnaturalgasandoilinpipelines,thewakesofcarsandsubmarines,theboundarylayerofanaircraft,thecurrentintheoceansurface,theatmosphericboundarylayer,theinterstellargasclouds(gaseousstars),andtheEarth’swakeinthesolarwind.Turbulencecangreatlyimprovetheheatandmasstransferefficiencyofmacroscopicflow.Forexample,chemicalengineersuseturbulencetomixupandhomogenizefluidcomponentsandtoincreasechemicalreactionratesinliquidsorgases.However,turbulencecanalsoleadtoincreasesindrag,aerodynamicheat,andhydrodynamicandaerodynamicnoise.Forinstance,theaerodynamicloadingofhigh-speedaircraftcanbesignificantlyincreasedduetoturbulence.