简介：AcollaborativevirtualmodelingenvironmentbasedonVRMLispresentedasasugarcaneharvestermodelingframework,andisillustratedwiththeimplementedsoftwarethatcanusingI_DEAS,Smarteam,andConceptualInnovationDesignSystem(CIDS)asthesupportingplatform,whichispowerfulenoughtomeetthedemandsofdifferentreallifeapplications.Itispossibletoperformcollaborativeinteractivemodificationswithconcurrentsynchronousvisualizationateachclientcomputerwithanyrequiredlevelofdetail.Theplatformprovidesaproductmodelingandassemblingenvironment,andtheproductdataamongI_DEAS,SmarteamandCIDScanbeexchanged.

简介：Thispaperintroducedcharacteristicsofrefractoriesandstepofsimulation.Duringsimulation,firstlyanalyzedmechanismoftechnology;secondlydescribedthemechanismasquadraticequation;thirdlydesignedandexecutedexperiment;latermaderegressionequationandoptimization;thenfoundtechnicalconflict;finallyanalyzedandresolvedtheconflict.Doingrepeatedlylikethis,resolveddifficultproblems.

简介：Thispaperfocusesontheauthors'contributionstoITU-TtodevelopthenetworkmodelingforthesupportofIN/Internetinterworking.Followinganintroductiontobenchmarkinterworkingservices,thepaperdescribestheconsensusenhancedDFParchitecture,whichisreachedbasedonIETFreferencemodelandtheauthors'proposal.Thentheproposedinformationflowsforbenchmarkservicesarepresentedwithneworupdatedflowsidentified.Finallyabriefdescriptionisgiventoimplementationtechniques.

简介：Pulsediagnosisisaspecialmethodofdiagnosingpatient’sdisease.Amathematicalmodelofthepulseispresentedinthispaper.Thefeatureparametersofthesphygmogramareextractedbasedonthesignalmodel.Thediscriminationandprincipalanalysisareemployedtoidentifythepulses.Theresultsarematchingwiththoseoftraditionalmethods.

简介：SolidmodelingwithpreciseNURBSboundariescompliantwithSTEPstandardrepresentsthemostpromisingwayofdesigningcomplicatedmechanicalproductsinaCIMenvironment.Inparal-leltothetraditionalapproachofputtingtogethervolumetricprimitiveswithBooleanoperations,anal-ternativewayofapplyingthewireframeandskinningtechniquesisunderdevelopment.Thelatterap-proachiseasytoimplement,robustandcapableofhandlingthemostsophisticatedmodels,whilesuf-fersthedrawbacksoflowefficiencyinidentifyinginteractivelytheboundariesofeachsurfacepatchwhenthelinesegmentsareinterlacedandlocatedclosetoeachother.Thispaperdescribestheessentialsofthewireframeandskinningtechniqueswhichproducetheidenticalproductinformationmodelasasolidmodeler.

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简介：Theunbondedflexiblepipeofeightlayers,inwhichallthelayersexceptthecarcasslayerareassumedtohaveisotropicproperties,hasbeenanalyzed.Specifically,thecarcasslayershowstheorthotropiccharacteristics.Theeffectiveelasticmoduliofthecarcasslayerhavebeendevelopedintermsoftheinfluenceofdeformationtostiffness.Withconsiderationoftheeffectiveelasticmoduli,thestructurecanbeproperlyanalyzed.Alsotherelativemovementsoftendonsandrelativedisplacementsofwiresinhelicalarmourlayerhavebeeninvestigated.Athree-dimensionalnonlinearfiniteelementmodelhasbeenpresentedtopredicttheresponseofflexiblepipesunderaxialforceandtorque.Further,thefrictionandcontactofinterlayerhavebeenconsidered.Comparisonbetweenthefiniteelementmodelandexperimentalresultsobtainedinliteraturehasbeengivenanddiscussed,whichmightprovidepracticalandtechnicalsupportfortheapplicationofunbondedflexiblepipes.

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简介：为河的水，沉积和许多水质成分典型地从贡献分水岭的高地以及从降低举起的溪流方面地区和河岸被导出。这为内部和平的西北和大盆区域的地形的复杂的风景是特别地明显的，在从高举起的积雪场的雪水是为穿越广泛的半干旱的低地的河的主要的水来源的地方。当硫管理通常集中于下游地高顺序的活动范围时，自然资源经理逐渐地在硫的头水里担心小、低顺序的河系和河边的环境。对理解头水水文学的需要为头水和中间举起的扇区的水疗院逻辑政体亲密地在低举起的、高顺序的流活动范围在被连接到流速及流水量和隧道进程的一个牧场分水岭系统被表明。全面的、成功的河和分水岭管理和模拟模型申请要求足够地理解的水疗院逻辑和来源分水岭的生态系统特征。

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简介：ＳｏｌｉｄＭｏｄｅｌｉｎｇＥｒｏｒ：ＡｎａｌｙｓｉｓａｎｄＣｏｍｐｅｎｓａｔｉｏｎ①ＸｕＺｈｉｇａｎｇＨｕａｎｇＫｅｚｈｅｎｇＡｉＸｉｎｇＳｈａｎＬｉａｎｙｅＣｏｌｅｇｅｏｆＭｅｃｈａｎｉｃａｌＥｎｇｉｎｅｅｒｉｎｇ，ＳｈａｎｄｏｎｇＵｎｉｖｅｒｓｉ...

简介：所有液体动态方程在他们的当模特儿的规模下面是有效的，意味着免费路径例如粒子并且意味着Boltzmann方程的碰撞时间规模和NavierStokes(NS)方程的水动力学规模。当前的计算液体动力学(CFD)集中于部分微分方程(PDE)的数字答案，并且它的目的是得到这些管理方程的精确答案。在如此的一个CFD惯例下面，它是难的开发盖住流动物理从的一个统一计划对水动力学运动因为没有能用Boltzmann做光滑的转变到当模特儿的NS的如此的管理方程，连续地可伸缩。液体动力学的学习需要超出传统的数字部分微分方程。出现设计应用程序，例如为近空间的飞行和流动和热转移在的空气车辆设计微设备，确实要求煤气的动力学的概念的进一步的扩大到物理现实，而非传统的可区分的管理方程的更大的域。在当前的阶段，非平衡流动物理很好还没由于适当工具的缺乏被探索了或清楚地理解。不幸地在当前的数字PDE途径下面，它是难的由于有效PDE的缺席开发如此的一个有意义的工具。以便多尺度的构造和类似于构造管理方程的Boltzmann或NS的当模特儿的过程的multiphysics模拟方法，一个数字算法的发展应该基于物理建模的第一个原则。在这份报纸，而不是跟随传统的数字PDE路径，我们介绍为CFD算法开发的作为一个原则的直接建模。因为所有计算与有限房间分辨率在一个discretized空格被进行，要当模特儿的流动物理不得不在网孔尺寸和时间步骤规模被做。这里，CFD是差不多分离数字进化方程的直接构造，在网孔尺寸和时间步骤将玩的地方，在建模的动态角色处理。与在网孔之间的比率的变化，尺寸和本地粒子意味着免费路径，从到水动力学波浪繁殖的运动粒子运输和碰撞的计划愿望俘获流动物理。基于直接建模，流动运动的连续动力学�

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简介：Inthispaperweproposeamethodtomodelflowersofsolidshape.Basedon(Ijirietal.,2005)’smethod,weseparateindividualflowermodelingandinflorescencemodelingproceduresintostructureandgeometrymodeling.Weincorporateinteractiveeditinggesturestoallowtheusertoeditstructureparametersfreelyontostructurediagram.Furthermore,weusefree-handsketchingtechniquestoallowuserstocreateandedit3Dgeometricalelementsfreelyandeasily.Thefinalstepistoautomaticallymergeallindependent3Dgeometricalelementsintoasinglewaterproofmesh.Ourexperimentsshowthatthissolidmodelingapproachispromising.Usingourapproach,noviceuserscancreatevividflowermodelseasilyandfreely.Thegeneratedflowermodeliswaterproof.Itcanhaveapplicationsinvisualization,animation,gaming,andtoysanddecorationsifprintedouton3Drapidprototypingdevices.

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简介：WehavestudiedabiomimeticswimmerbasedonthemotionofbacteriasuchasEscherichiacoli(E.coli)theoreticallyandexperimentally.Theswimmerhasanellipsoidalcellbodypropelledbyahelicalfilament.Theperformanceofthisswimmerwasestimatedbymodelingthedynamicsofaswimmerinviscousfluid.WeappliedtheResistiveForceTheory(RFT)onthismodeltocalculatethelinearswimmingspeedandtheefficiencyofthemodel.Aparametricstudyonlinearvelocityandefficiencytooptimizethedesignofthisswimmerwasdemonstrated.Inordertovalidatethetheoreticalresults,abiomimeticswimmerwasfabricatedandanexperimentsetupwaspreparedtomeasuretheswimmingspeedandthrustforceinsiliconeoil.TheexperimentalresultsagreewellwiththetheoreticalvaluespredictedbyRFT.Inaddition,westudiedtheflowpatternssurroundingthefilamentwithafiniteelementsimulationwithdifferentReynoldsnumber(Re)tounderstandthemechanismofpropulsion.Thesimulationresultsprovideinformationonthenatureofflowpatternsgeneratedbyswimmingfilament.Furthermore,thethrustforcesfromthesimulationwerecomparedwiththethrustforcesfromtheory.Thesimulationresultsareingoodagreementwiththetheoreticalresults.

简介：地面模型的3D重建基于数字线图形(DLG)被讨论。一个联合汽车的三角形算法基于三角，拓扑的关系被提出，并且复杂地面的拓扑的数据模型被开发。基于这个数据模型，自动3D地面的拓扑的重建被认识到。

简介：Traditionalbackgroundmodelmethodsoftenrequirecomplicatedcomputations,andaresensitivetoilluminationandshadow.Inthispaper,weproposeablock-basedbackgroundmodelingmethod,anduseourproposedmethodtocombinecolorandtexturecharacteristics.Suppressionandrelaxationarethetwokeystrategiestoresistilluminationchangesandshadowdisturbance.Theproposedmethodisquiteefficientandiscapableofresistingilluminationchanges.Experimentalresultsshowthatourmethodissuitableforreal-wordscenesandreal-timeapplications.

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