简介：Onthebasisofthemedicalandmechanicalanalysisandexplanationsinthispaperthevisco-elasticsimplysupportedbeammodelisproposedtotreatthedisplacementwaveofthebloodvessels.Therelationshipsbetweenthedisplacementwaveandbloodvesselelasticityaswellastheviscousdissipationofthebloodandbloodvesselareobtained.ThecorrespondingrelationsofsuchkindsofpulsesinthetraditionalChinesemedicineassmoothpulse,surfacepulseanddeeppulsetothedisplacementwavesofbloodvesselsarealsofound.Thecomputationalresultsareingoodagreementwiththoseacquiredintheexperimentswithultrasonicwave.

简介：AmodificationofafiniteelementmethodofDouglasandRobertsforapproximatingthesolutionoftheequationsdescribingcompressiblemiscibledisplacementinaporousmediumisproposedandanalyzed.ThepressureistreatedbyaparabolicmixedfiniteelementmethodusingaRaviart-Thomasspaceofindexroveraquasiregularpartition,AnextensionoftheDarcyvelocityalongGausslinesisusedintheevaluationofthecoefficientsintheGalerkinprocedurefortheconcentration.Asimplecomputationalprocedureallowsthesuperconvergencepropertyofthefluidvelocitytoberetainedinourtotalalgorithm.

简介：Inthisarticle,byusingthestabilityofCauchytypeintegralwhenthesmoothperturbationforintegralcurveandtheSobolevtypeperturbationforkerneldensityhappen,wediscussthestabilityofthesecondfundamentalprobleminplaneelasticitywhenthesmoothperturbationfortheboundaryoftheelasticdomain(unitdisk)andtheSobolevtypeperturbationforthedisplacementhappen.Andtheerrorestimateofthedisplacementbetweenthesecondfundamentalproblemanditsperturbedproblemisobtained.

简介：Inthispaper,theauthorobtainsthemoregeneraldisplacementsolutionsfortheisotropicplaneelasticityproblems.Thegeneralsolutionobtainedinref.[1]ismerelytheparticularcaseofthispaper,Incomparisonwithref.[1],thegeneralsolutionsofthispapercontainmorearbitraryconstants.Thustheymaysatisfymoreboundaryconditions.

简介：The2Dplanegasflowunderheating(withnonentityboundarycondition)hasbeendiscussedbytheanalyticalapproachinthispaper.Theapproximateanalyticalsolutionshavebeenobtainedfortheflowpassingvariouskindsofheatsources.Solutionsdemonstratethethermaldisplacementphenomenaarestronglydependontheheatingintensity.

简介：Opticalfull-fieldmeasurementmethodsarenowwidelyappliedinvariousdomains.Ingeneral,thedisplacementfieldscanbedirectlyobtainedfromthemeasurement,howeverinmechanicalanalysisstrainfieldsarepreferred.Toextractstrainfieldsfromnoisydisplacementfieldsisalwaysachallengingtopic.Inthisstudy,afiniteelementmethodforsmoothingdisplacementfieldsandcalculatingstrainfieldsisproposed.Anexperimentaltestcaseonaholedaluminumspecimenundertensionisappliedtovali...

简介：Inordertoinvestigatetheinfluenceoftheverticalvibrationloadingontheliquefactionofsaturatedsand,onedimensionalmodelforthesaturatedsandwithaverticalvibrationispresentedbasedonthetwophasecontinuousmediatheory.Thedevelopmentoftheliquefactionandtheliquefactionregionareanalyzed.Itisshownthattheverticalvibrationloadingcouldinduceliquefaction.Therateoftheliquefactionincreaseswiththeincreaseoftheinitiallimitstrainorinitialporosityoramplitudeandfrequencyofloading,andincreaseswiththedecreaseofthepermeabilityorinitialmodulus.Itisshownalsothatthereisaphaselaginthesandcolumn.Whenthesandpermeabilitydistributionisnon-uniform,theporepressureandthestrainwillrisesharplywherethepermeabilityisthesmallest,andfracturemightbeinduced.Withthedevelopmentofliquefaction,thestrengthofthesoilfoundationbecomessmallerandsmaller.Inthelimitingcase,landslidesordebrisflowscouldoccur.

简介：为预言在室内的空格的喷雾器粒子分散与试验性的数据被验证的一个建议计算机模型在文学发现了，并且然后被用来在排水量通风(DV)在粒子分散上学习区域和点来源地点的效果房间。结果证明那个喷雾器来源地点在空间分发和室内的粒子的移动率上有强壮的影响。粒子移动性能在室内的表面上强烈取决于通风效率和粒子免职率。为两相对通风效率和免职率的重要考虑相对主要气流模式和占据地区由喷雾器来源的位置组成。

简介：Compressiblemiscibledisplacementofonefluidbyanotherinporousmediaismodelledbyanonlinearparabolicsystem.Afiniteelementprocedureisintroducedtoapproximatetheconcentrationofonefluidandthepressureofthemixture.TheconcentrationistreatedbyaGalerkinmethodwhilethepressureistreatedbyaparabolicmixedfiniteelementmethod.Theeffectofdispersion,whichisneglectedin[1],isconsidered.OptimalorderestimatesinL2arederivedfortheerrorsintheapproximatesolutions.

简介：ＩｎｔｒｏｄｕｃｔｉｏｎＴｏｐｏｌｏｇｙｏｐｔｉｍｉｚａｔｉｏｎｏｆｃｏｎｔｉｎｕｕｍｓｔｒｕｃｔｕｒｅｓｄｉｄｎｏｔｄｅｖｅｌｏｐｒａｐｉｄｌｙｕｎｔｉｌｒｅｃｅｎｔｔｅｎｙｅａｒｓｏｗｉｎｇｔｏｔｈｅｓｐｅｃｉａｌｄｉｆｆｉｃｕｌｔｉｅｓｉｎｖｏ...

简介：Inthispaper,amethodofconstructingdisplacement-basedelmentforthick/thinplatesisdevel-opedbyusingthetechniqueofgeneralizedcompatibility,andarectangulardisplacement-basedelementwith12degreesoffreedomforthick/thinplatesispresented.Thismethodenjoysagoodaccuracywithsimpleformulationandisfreeofshear-lockingasthethicknessoftheplateapproacheszero.

简介：Thispaperpresentsamethodtomeasurethein-planedisplacementfieldsofcurvedsurfacebymoireinterferometryofpartialcoherentlight.Themethodhasthefollowingadvantages:simpleopticalsystem,norequirementonvibrationisolation,highsensitivity,largemeasuringrange,highcontrastofinterferencefringesandavailabilitytoin-situstructuraltesting.Thepresentpaperalsogivestheoreticalanalysisofthemethodandtheformulasoflightintensityanddisplacementfield,andintroducesareplicationtechniquetoformahighfrequencyreflectancegratingonthecurvedsurface.Theexperimentsachievedthemeasurementofthesurfacedisplacementfieldofacylindricalshell—thesimultaneouscircumferential,axialand45°displacementfields.Thetorsionaltestdataforsurfacedisplacementofacircularbaragreewellwiththetheoreticalresult.

简介：有一根激光横梁的一个单个二水平的二模式的套住的离子的相互作用理论上被学习了。用单一的转变的申请，没有执行羔羊Dicke近似，这个量系统的一个分析答案被获得了。在这个系统，纠缠的排水量Fock状态被生产。

简介：Inthispaperweshallgivethecharacteristicdifferencemethodsfortwophasedisplacemeatprobleminnaturallyfracturedreservoirs.Weshallprovetheexistence,uniquenessoftheapproximatesolutionandaprioridiscreteL2-errorestimates.

简介：察觉到途径的nearfield错误，是在活跃声学的结构的实现遇到的关键问题之一，理论上被调查。基本想法包含一小部分PVDF电影对到为测量总数的主要面板和第二等的面板的表面的boned被散发健全力量。首先，在这份报纸，与活跃声学的结构联系的一个理论模型被建立。第二，为PVDF对的形状系数的公式基于察觉到的模式和PVDF建模的声学的放射被导出。最后，很多计算机模拟被执行，在散发的健全电源的PVDF对和相应减小的形状是结果表明的calculated.The察觉到的建议nearfield错误的可行性策略。

简介：Thispaperpresentsafringe-carriermethodthateliminatessignambiguityoftransientmoirefringeswhichcanbeusedtoautomaticallydeterminetherelativeorders.Afringecarrierispresetinthestaticstateofthespecimenandthedynamicin-planedisplacementsarerecordedasthemodulationtothefrequencyofthecarrierfringeswhenthespecimenisloadedbyimpact.Accordingtoamodulatingcriteriondevelopedfromthemodulationdegree,thefringesofthetransientmoirepatternskeepmonotonicalinorderssothattheycanbeautomaticallyencodedingreylevelsbyadigitalimagesystem.Themoireorderspurelycausedbydynamicloadingsareevaluatedbysubtractingthegrey-valueoftheunmodulatedcarrierimagefromthatofthemodulatedcarrierimagesencodedbytheirorders.Withthesubtractedmoireordersthestraincomponentscanbeobtained,and,correspondingly,thehistogramsofdynamicdisplacementmoireimagesareshownwithordervariationbyimage-difference.

简介：Tsinghai-TibetPlateaubecomesanimportantresearchtopicofglobaltectonics,becauseofitsmarvelousthicknessandrapidupliftingsinceQuaternary.Byusingfiniteelementmethod,thenumericalsimulationiscarriedoutforthemovementofstructurallithosphere.Thedeformableelementsareemployedtosimulatestructuralzones,andthefrictionalmechanismisintroducedtoillustratethecharacteristicofazonewithacontactcracksurface.Theboundaryconditionsareprescribedbythedisplacementsaroundthepla-teau.Asaresult,thestressanddisplacementdistributionsareobtained,whichareconsistentwithPaxialorientationsoftheearthquakefocusmechanismandthemeasuredprincipalstressdirection.Analysisandes-timatearealsomadefortheevolutionofhistoricalprocessandpresentsituationoftheplateaulithosphere.

简介：Twophase,miscible,incompressibleflowinporousmediaisgovernedbyasystemofnonlinearpartialdifferentialequations.Manynumericalmethodshavebeengivenbydidierentauthorstothissystem,hutthesemethodsneedveryhighregularityconditions.Actualty,inmostpracticalapplicationstheseregularityconditionscouldn'tbesatisfied.Inthispaper,theproblemofdiscontinuouscoefficientswithlowerregularityconditionsisconsideredandtheerrorestimatesaredemonstrated.

简介：Thenumericalmethodsformiscibledisplacmentinaggregatedorsorbingmediumareconsidered.Amixedfiniteelementmethodisadoptedforthepressureequation.Theconcentra-tioninthemobilewaterisapproximatedbyacombinationofaGalerkinfiniteelementmethodandthemethodofcharacteristicsandtheconcentrationinimmobilewaterisapproximatedbyastan-dardGalerkinmethod.Themovingmeshtechniquewhichdependsontimetisadoptedhere.Themovingmeshescanvaryindifferentspacialdomainswithdifferentvariabletimes.OptimaerrorestimatesinenergynormandL2normareobtainedundercertainconstraints.

简介：Themiscibledisplacementofoneincompressiblefluidbyanotherinaporousmediumisconsideredinthispaper.Theconcentrationissplitinafirst-orderhyberbolicequationandahomogeneousparabolicequationwithineachlimestep.ThepressureandUsvelocityfieldiscomputedbyamixedfiniteelementmethod.Optimalorderestimatesarederivedforthenodiffusioncaseandthediffusioncase.