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  • 简介:Thispaperproposesanewmethodbasedonprincipalcomponentanalysistofindthedirectionofanobjectinanypose.Experimentsshowthatthismethodisfast,canbeappliedtoobjectswithanypixeldistributionandkeeptheoriginalpropertiesofobjectsinvariant.ItisanewapplicationofPCAinimageanalysis.

  • 标签: principal COMPONENT analysis(PCA) principal component(PC) OBSERVED
  • 简介:ANALYSISOFSTRONGSINGULARITIESFORNONLINEARHYPERBOLICEQUATIONSFANGDAOYUANAbstract.Inthispaperwereviewoursomeresultsaboutthestr...

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  • 简介:ARoseforEmilyisanexcellentshortstorybyAmericanauthorWilliamFaulknerinthe20thcentury.ItisaboutthetragicfateofthearistocraticladyEmily.ThispaperanalysesthereasonsofEmily’stragedy,herawakeningandthefailureofherrevoltfromafeminismperspective.

  • 标签: EMILY FEMINISM PATRIARCHY OPPRESSION AWAKENING
  • 简介:Insteady,solid-liquidtwo-phaseturbulentflows,thereexisttwotypicalpatternsoftheverticaldistributionofparticleconcentration.ThepatternIshowsamaximumconcentrationatanelevationabovethebed.ThepatternIIshowsanincreaseoftheparticleconcentrationdownwardoverthewholevertical,withthemaximumatthebed.MostofthetheoriesonparticleconcentrationdistributionhavebeendonewiththepatternII,anditislackofasuccessfultheorycovetingbothofthetwopatterns.Thispaperreviewstheparticledistributiontheories,includingthediffusiontheory,themixturetheory,theenergytheory,thesimilaritytheory,thestochastictheoryandthekinetictheory.Thekinetictheoryisalsoappliedtodescribetheverticaldistributionofparticleconcentrationinbothdiluteanddenseflows.

  • 标签: PARTICLE CONCENTRATION distribution DIFFUSION theory KINETIC
  • 简介:Aprocessfornumericalanalysisofradialcirculationdistributionofpropellerbladeisproposedandpresented.Itisbasedontheresultsofnumericalsimulationofthevelocityfieldaroundpropellerbladesandinthewake.Thewell-knowntraditionalmethodusingtangentialvelocitydatainthewakeandapplyingStockes'stheoremwasalsoexaminedintheinvestigation.Theresultsfromtwoapproachesarecomparedwitheachother.Itisfoundthatifthetraditionalwayisutilized,inmanycasesanunexpected'hump'appearsinthecirculationdistributionatcertainouterradius.Theauthorscalculatedthecirculationsdirectlyaroundbladesections,anditisreferredasdirectmethod.Theunexpectedhumpofthecirculationdistributiondisappearsintheresultsofdirectmethod.Thisarticlealsodiscussesthereasonsoftheappearanceoftheunexpectedhumpintraditionalapproach.Thedirectmethodisproposedtohaveapotentialinanalyzingorverifyingtheradialroaddistributionfordesignedpropellerandthenumericalanalysisinsteadofexperimentalvalidationforcirculationdistributioncanbeasatoolinthepropellerdesignprocess.

  • 标签: 螺旋桨桨叶 数值分析 流转 流场数值模拟 斯托克斯定理 传统方法
  • 简介:"Energyindependence"hasbeenanage-olddreamoftheU.S.administration,andrecentlyreemergedasahottopicintheUnitedStates.ThecurrentdeclineofU.S.dependenceonforeignenergyismainlycausedbyitseconomicdownturnratherthangenuineenergyindependence.ActuallytheU.S.stillneedstoimportlargequantitiesofcrudeoilinaratherlongtime.

  • 标签: 美国 能源 保护主义 石油产品 经济衰退 综合实力
  • 简介:波导戒指共鸣器的一种类型,基于Er3+/Yb3+共同做的磷酸盐玻璃和是的使用的热光的效果调节举止,被带上。戒指共鸣器与400m的半径由二直波导和戒指波导组成。电极在波导的顶上被蒸发完成热调节。第一,戒指共鸣器的过滤计划被分析,然后,电极的参数怎么影响过滤特征,被讨论。

  • 标签: 环形谐振腔 热调谐 磷酸盐玻璃 波分多路复用 滤光器
  • 简介:Thispaperpresentsanovelmethodforoverlappingortouchingblobobject(particles)segmentation.Itisbasedonthewatershedtransformation,oneofthemostpowerfulimageanalysistoolsprovidedbymathematicalmorphology,Inthismethod.wefirstbuildthedistancefunictionoftheblobimage,andthenextracttheregionalminimaasmarkers,andfinallythewatershedtransformationisperformed.Theapplicationsofthisalgorithmillustratedusingexamplesofredbloodcellsegmentationandbrokenmedicinepilldetection.

  • 标签: 数学形态学 距离交换 图像分段 计算机
  • 简介:Epidemicsofsexuallytransmitteddiseaseshavebecomeworldwideseriousproblems.TheInstituteofDermatologyandVeneologyofWenshanAutonomousPrefectureinYunnanisacenterofpolitical,economical,culturalandsocialactivitiesintheprefecture.ItisalsothelocationoftheCommitteeofWenshananditsgovernment.WenshandataindicatesthatSTDshavebeenspreadingfromtownsofthisprefecturetothecountryside.

  • 标签: 门诊病人 性传播疾病 STD 回顾性分析 人体免疫缺损病毒 HIV
  • 简介:联机话题的传播,是socio心理的建筑群和信息传播过程,能显著地影响联机话题传播的联机公共opinion.The行为被探索,它的整齐被尝试到analyze.A将军模型因为联机话题的传播被介绍,并且描述一个联机话题的速度传播的微分方程是一个联机话题的derived.The速度传播了显示话题的发展的水平并且

  • 标签: 网上传播 行为 传播速度 一般模型 传播过程 社会心理
  • 简介:ChineseREindustryentersintoakeyperiodafterexperiencingsomebigevents.Thetax-rebateofREexportproductswascancelledonMay1st2005,followedbypricesoaringofBaotoumixedREcarbonates.SomeofthefamousREenterprisesinBaotouhadtostopproductiontodealwithenvironmentalpollutionproblems.Fromabovesituationofrareearthindustry,wecouldanalyzedevelopingtrendsofrareearthmarket.First,productioncostofrareearthseparatedproductsandrareearthmetalswillrisesha...

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  • 简介:WepresentthenumericalanalysisofacoupledmethodforthenumericalsimulationoftransientviscoelasticflowobeyingadifferentialconstitutiveequationwithaNewtonianviscosity.TheschemeusedisbasedonEulerimplicitmethodintimeandmaintainsateachtimestepacoupleofthevelocityuandtheviscoelasticpartofthestressσ.Approximationinspaceismadebyfiniteelementmethod.Theapproximatestress,velocityandpressureare,respectively,P1-continuous,p2-continuous,andp1continuous.Upwindingneededforconvectionofσismadebya'StreamlineUpwindPetrovGalerkin'method(SUPG).

  • 标签: 数字分析 瞬时粘弹性流动 上风法 牛顿粘度 非牛顿流体 流体力学
  • 简介:WepartitiontheobservedwindfieldintorotationalanddivergentwindfieldstoanalyzethestreamfieldofTy-phoonPolly(No.9216),whichlandedon31August1992andcausedsevereweatherandlargedamageintheeasternChina.Theresultsindicatethatthepreservationoftyphoonintensityafterlandingandtheheavyrainfalltookplaceonthenorthernperipheryoftyphoonareduetothestrongdivergentwindsontheregionsoflowleveljet(LLJ)andhighleveljet(HLJ)aroundthetyphoon.ThedirectionofdivergentwindsintheLLJisperpendiculartotheobservedwind.But,thedirectionofdivergentwindsaroundtheHLJaxisisparalleltotheobservedwinds.Thestreamfunctionandtherotationalwindcorrespondingtothehorizontalvorticitydisplaytheverticalcirculationassociatedwiththeheavyrain,whichisstrongerthantheverticalcirculationaroundthetyphooncenter.Thethree-dimensionaltrajectoriesexhibitthewarmandmoistairparcelsofLLJtravelingnorthwardintotheheavyrainfallregionandascending,thenturningeastwardintheHLJ.

  • 标签: TYPHOON STREAM FIELD TRAJECTORY TORRENTIAL RAINFALL
  • 简介:Thediaphragmofsteamturbineisoneofthemainpartsofthepassageunitforairflowing.Forstudyingitsworkingconditionandperformance,thethree-dimensionalfiniteelementmodel(FEM)withthesoftwareANSYS10.0isestablishedaccordingtotheactualworkingparameters.Withthemodel,thedeformationresultsandstressfieldresultsareanalyzedandthemaximumdisplacementandstressvaluearecalculated,meanwhile,theircorrespondingpositionsarefound.Itprovidesagoodfoundationforsolvingtheprobleminproduction.

  • 标签: 有限元分析 地下连续墙 汽轮机 空气流动 工作性能 最大位移
  • 简介:Thirdpartylitigationfunding(TPLF)isoneofthemostinnovativetrendsinlitigationfundingindustry.InaTPLFcontract,anexternalinvestor(thethirdpartyfunder)financiallysupportsalitiganttocoverlitigationexpenses.Iftheclaimisfinallysuccessful,ashareofrecoverieswillcometothefunderinreturn.Ontheotherhand,thethirdpartyfunderwillreceivenocompensationiftheplaintifflosesthesuit.Uptillnow,insomecommonlawjurisdictions(e.g.,Australia,theUK,andtheU.S.),TPLFhasbeenlegallyacceptedanddevelopsrapidly.Meanwhile,concernsabouttheuseofTPLFhavealsobeenraised.Forexample,whetherTPLFwillencouragefrivoloussuitsandunmeritoriousclaims;andwhethertheuseofTPLFwillbesociallydesirable.Inthisarticle,abasiceconomicmodelofTPLFwillbebuiltfirstly.Then,analysisbasedonthismodelwillbedeliveredandfurthersocialexternalitiesbroughtbytheuseofTPLFwillalsobeinvestigated.Finally,throughaneconomicanalysis,itisconcludedthatTPLFisgenerallysocialdesirablebutregulationsshouldbeimposed.

  • 标签: THIRD party LITIGATION FUNDING economic model
  • 简介:Inthispaper,weformulateandexplorethecharacteristicsofiterativelearninginballisticcontrolproblems.Theiterativelearningcontrol(ILC)theoryprovidesasuitableframeworkforderivationsandanalysisofballisticcontrolunderlearningprocess.Toovercometheobstaclescausedbyuncertaingradientandredundantcontrolinput,weincorporateextratrialsintoiterativelearning.Withthehelpoftrialresults,propercontrolandupdatingdirectioncanbedetermined.Then,iterativelearningcanbeappliedtoballisticcontrolproblem.Severalinitialstatelearningalgorithmsarestudiedforinitialspeedcontrol,forcecontrol,aswellascombinedspeedandanglecontrol.Intheend,shootinganglelearninginthebasketballshotprocessissimulatedtoverifytheeffectivenessofiterativelearningmethodsinballisticcontrolproblems.

  • 标签: BALLISTIC CONTROL Iterative LEARNING CONTROL Initial