简介：Inthispaper,amacrokineticsmodelequationdescribingthecharacteristicsofthesolid-liquidmasstransferhasbeenproposed.Thequalitativeanalysisandexperimentalverificationhavebeendoneforthismodeequation.Themodelequationcanexplaintheionexchangeprocessconsiderablywell.

简介：Lineardrivingforce(LDF)modeliswidelyusedinadiffusionprocess,However,thismodelhasinherentweakness.Whenthedimensionlesstimeislessthan0.1itsrelativeerrorisupto95%.Inthispaper,anewconcentrationprofileisproposed.andthenanewmodifiedLDFmodel(MLDF)isdeduced.Comparedwiththeexactsolutionofintraparticlediffusionequation,thetransientvolume-averageamountadsorbedcalculatedfromtheMLDFismoreaccuratethanthatcalculatedfromtheLDFmodel.Ifonetakes±10%relativeerrorforthelimitofvalidityofapproximation,thenewmodelisvalidwhenthedimensionlesstimeisjustlargerthan0.0002,whiletheLDFmodelisnotvaliduntilthedimensiontimeislargethan0.05,ThenewmodelissuperiortotheLDFmodel.ThenewconcentrationprofilescorrespondingtotheMLDFmodelaremuchclosetotheexactconcentrationprofileswithinaparticlethantheparabolicprofilescorrespondingtotheLDFmodel.

简介：

简介：聚氨酯，是在论文介绍的组成的研究的题目，基于Bayer生产的oligocarbonatediolsDesmophenC2100?。组成的建模考虑到作为intervertebral圆盘prostheses的inlay使用材料被执行。聚氨酯被假定是非线性地viscohyperelastic，各向同性、不可压缩。组成的方程从要求的紧张精力功能被导出。橡皮和rheological常数根据试验性的测试被识别，即松驰测试和monotonic以二不同紧张率的单轴的测试，即\(\dot\lambda=0.1\)min1和\(\dot\lambda=1.0\)min1。僵硬张肌被导出并且介绍给Abaqus吗？有限元素(FE)软件以便数字地验证组成的模型。常数鉴定和数字实现的结果证明导出的组成的方程是充分足够的为聚氨酯材料的压力紧张行为建模。

简介：Astochasticmodelisdevelopedtopredicttheperiodicoperationperformanceofthecontinuouscounter-currentadsorptionprocess.Themodeltakesintoaccounttheeffectsofrandombackmixingofparticles,axialdispersionofliquidphase,liquid-filmmasstransfer,intraparticlediffusionandparticleshape,andcanrevealclearlythebehaviorofsolidandliquidphaseinadsorptionprocess.Thesimulationresultsagreewiththeexperimentaldataratherwell.

简介：MethodofVSC(VoltageShortedCompaction)canbeusedtodeterminetheintrinsictemperaturedependenceofconductivityofpolycrystallinecompaction.TheexperimentalconditionsandtechnicalkeyforpreparationofVSCdeviceanditsphysicalmodelaswellasitsapplicationsinconductingpolymersarediscussedindetail.

简介：4newmodel,phaseequilibrium-kineticsmodel(PEKM),forestimationofdiffusioncoefficientwasproposedinthispaper.KineticexperimentsofphenoldesorptiononNKAIIresininthepresenceandtheabsenceofultrasoundwereseparatelyconducted,anddiffusioncoefficientsofphenolwithinanadsorbentparticlewereestimatedbymeansofproposedPEKMandclassicsimplifiedmodel.ResultsshowthattheuseofultrasoundnotonlychangesthephaseequilibriumstateofNKAllresin/phenol/watersystemwhichhadbeenequilibriumatnormalcondition,butalsoenhancesdiffusionofphenolwithintheresin.ThediffusioncoefficientofphenolintheresininthefieldofultrasoundincreasesinanorderofmagnitudeincomparisonwiththediffusioncoefficientdeterminedundernoultrasoundExperimentalresultsalsoindicatedthatthediffusioncoefficientsestimatedbyPEKMweremoreaccuratethanthatestimatedbytheclassicsimplifiedmodel.

简介：我们重游聚合物液体的Simha-Somcynsky模型以达到开发新奇理论、计算的途径简化并且加快它的解决方案以及试验性的数据的试穿，并且减少它数学复杂性的水平。我们报导允许我们确切解决模型的二个方程之一的一个新奇方法，因此把数学困难的水平放等同于一其它为聚合物液体当模特儿。而且，我们描述能够以一个不偏的方法适合模型的所有五个参数的一个计算算法。获得的结果复制文学结果并且很精确地为三聚合物适合试验性的pressure-volume-temperature和溶解度参数数据。而且，新技术允许在很低的温度的模型的调查。出人意料地，模型预言当习惯性地在dilatometry观察了，能作为一只杯子被解释的行为转移，微分扫描热量测定，和一只杯子分阶段执行。我们比较了预言并且试验性的T<潜水艇class=“a-plus-plus”>g为cis的spoly(1,4丁二烯)并且发现一个优秀量的协议。