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简介：这研究向动人的表面为三维的麦克斯韦液体集中于热和集体流动的Cattaneo-Christov理论。有可变热电导率的不可压缩的laminar流动被考虑。流动产生由于表的双向拉长。热和集体运输的联合现象被说明。热和集体散开的Cattaneo-Christov模型被用来开发精力和集体种类的表情。在集体种类方程的一阶的化学反应术语被考虑。边界层假设导致管理数学模型。homotopic模拟被采用设想无尺寸的流动方程的结果。速度，温度，和集中的图显示出不同产生参数的效果。一个数字基准被介绍设想计算结果的会聚的价值。结果证明集中和温度地为热和集体散开的Cattaneo-Christov理论被腐烂。

简介：Thispaperstudiesthethermal-diffusionanddiffusionthermo-effectsinthehydro-magneticunsteadyflowbyamixedconvectionboundarylayerpastanimpermeableverticalstretchingsheetinaporousmediuminthepresenceofchemicalreaction.Thevelocityofthestretchingsurface,thesurfacetemperature,andtheconcentrationareassumedtovarylinearlywiththedistancealongthesurface.Thegoverningpartialdifferentialequationsaretransformedintoself-similarunsteadyequationsusingsimilaritytransformationsandsolvednumericallybytheRunge-Kuttafourthorderschemeinassociationwiththeshootingmethodforthewholetransientdomainfromtheinitialstatetothefinalsteadystateflow.Numericalresultsforthevelocity,thetemperature,theconcentration,theskinfriction,andtheNusseltandSherwoodnumbersareshowngraphicallyforvariousflowparameters.Theresultsrevealthatthereisasmoothtransitionofflowfromunsteadystatetothefinalsteadystate.Aspecialcaseofourresultsisingoodagreementwithanearlierpublishedwork.

简介：Theapplicabilityandlimitationofseveralquadraticstrengththeorieswereinvestigatedwithrespectto2D-C/SiCand2.5D-C/SiCcomposites.Akindofdamage-basedfailurecriterion,referredtoasD-criterion,isproposedfornonlinearceramiccomposites.Meanwhile,thenewlydevelopedcriterionispreliminarilyvalidatedundertension-shearcombinedloadings.ThepredictionshowsthatthefailureenvelopegivenbyD-criterionislowerthanthatfromTsai–HillandHoffmancriteria.Thisrevealsthatthedamage-basedcriterionisreasonableforevaluationofdamage-dominatedfailurestrength.

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简介：ThisisoneoftheapplicationsofPart(Ⅰ),inwhichtheangularstiffness,thelateralstiffnessandthecorrespondingstressdistributionsofC-shapedbellowswerecalculated.Thebellowswasdividedintoprotrudingsectionsandconcavesectionsfortheuseofthegeneralsolution(Ⅰ),butthecontinuityofthestressresultantsandthedeformationsateachjointofthesectionswereentirelysatisfied.Thepresentresultswerecomparedwiththoseoftheothertheoriesandexperiments,andarealsotestedbythenumericallyintegralmethod.Itisshownthatthegoverningequationandthegeneralsolution(I)areveryeffective.

简介：AlaminarpremixedPropane/Airflamewithafuelequivalenceratioof2.1wasemployedforanalysisofsootparticles.Zeroth-orderIognormaldistributions(ZOLD)wereusedintheanalysisofexperimentaldistributionphenomenaatdifferentresidencetimesduringsootformationintheflame.Rayleigh'stheoryandMie'sscatteringtheorywerecombinedwithagglomerateanalysisusingscatteringandextinctiondatatodeterminethefollowingsootcharacteristics:agglomerateparameters,volumetricfractions,massflowratesandsurfacegrowthrate.Sootdensitymeasurementswerecarriedouttodeterminedensityvariationsatdifferentstagesofgrowth.Themeasuredresultsshowthatmetricfractionandmassflowrateindicatethatthesurfacegrowthrateofsootparticlesexceedstheoxidationratesintheflamestudied.Thedataobtainedinthisworkwouldbeusedtostudysootoxidationrateunderflamingcondition.