简介：ThispaperanalyzesthequeuingproblemthatwasexperiencedduringtheShanghaiWorldExpoof2010.Thequeuingproblemwillbediscussedatthreelevels.Thethreelevelsincludethephysical,psychological,andsocialaspectsofthequeuingproblem.Thecollectivebehaviorofvisitorsisstudiedthroughanalyzingtheinformationfromthedifferentsources,suchas,thenetworkofelectroniceyes,theevaluationplatformbasedonmobilephonesystemandtheInternet.Ahybridinformationnetworktechnologyisimplemented.BasedontheWuli-Shili-Renli(WSR)systemmethodology,anewtheoreticalanalysisframeworkforthequeuingproblemisproposed.

简介：由女士图象支持了在中间并且1970年代末，在1990年代初的TM图象和在2004的TM/ETM图象，在“三河的Headwaters”的草地降级区域(TRH区域)在RS图象上通过分析被解释在两次系列，然后

简介：Threekindsofmathematicalmodelsrepresentingweldingheatsourcesarepresented.Amongthem,Gaussianmodelanddoubleellipsoidalmodelareusedtoanalyzethethermaldistributionswithfiniteelementmethod.Atthesametime,thispaperanalyzedtheinfluencesoftheheatsourcemodels,thelatentheatandtheweldingparametersonthetemperaturedistributions.Thecomparisonsbetweenthesimulatedresultsandtheexperimentsshowdoubleellipsoidalmodelisgoodforthree-dimensionalnumericalsimulations.Furthermore,theadaptivemeshtechniqueisappliedinthethree-dimensionalmodelwhichgreatlyreducesthenumberofnodesandelementsinthesimulation.

简介：Itiswellknownthatopticaltomographycanaccuratelyandquantitativelyre-constructtherefractiveindexfieldofatransparentmediumanddisplaythethreedimensionalimageofotherthysicalquantitiesrelevanttotemperatureordensity.Inthispaper.anewmultidirectionalholographicinterferometricsystemisbuilt,andtwokindsofimagetecon-structionalgoritmaareintroducedandanautomaticimageprocessingsystemofinterfero-gramisdesigned.Athreedimentsionalasymmetricgadflowfieldaboveacombustorisexperi-mentallyinvestigatedwithholographicinterferormetry.Thereconstructedtemperaturesaresimilartothosemeasuredwithathermocouple.

简介：Three-dimensionaledgecracksareanalyzedusingtheSelf-SimilarCrackExpansion(SSCE)methodwithaboundaryintegralequationtechnique.TheboundaryintegralequationsforsurfacecracksinahalfspacearepresentedbasedonahalfspaceGreen’sfunction(Mindlin,1936).ByusingtheSSCEmethod,thestressintensityfactorsaredeterminedbythecrack-openingdisplacementoverthecracksurface.Indiscreteboundaryintegralequations,theregularandsingularintegralsonthecracksur-faceelementsareevaluatedbyananalyticalmethod,andtheclosedformexpressionsoftheintegralsaregivenforsubsurfacecracksandedgecrakcs.Thisgloballynumericalandlocallyanalyticalmethodim-provesthesolutionaccuracyandcomputationaleffort.Numericalresultsforedgecracksundertensileloadingwithvariousgeometries,suchasrectangularcracks,ellipticalcracks,andsemi-circularcracks,arepresentedusingtheSSCEmethod.Resultsforstressintensityfactorsofthosesurfacebreakingcracksareingoodagreementwithothernumericalandanalyticalsolutions.

简介：Wepresentaninexpensivetechniquetoobtainathree-dimensional(3D)millimeterwave(MMW)andterahertz(THz)imageusingupconversion.InthisworkwedescribeanddemonstrateamethodforupconversionofMMW/THzradiationtothevisualbandusingaveryinexpensiveminiatureglowdischargedetector(GDD)andasiliconphotodetector.WepresentMMW/THzupconversionimagesbasedonmeasuringthevisuallightemittingfromtheGDDratherthanitselectricalcurrent.Theresultsshowbetterresponsetimeandbettersensitivitycomparedtotheelectronicdetectionperformedpreviously.Furthermore,inthisworkweperformfrequencymodulationcontinuouswave(FMCW)radardetectionbasedonthismethodusingaGDDlamp,withaphotodetectortomeasureGDDlightemission.ByusingFMCWdetection,therangeinadditiontotheintensityateachpixelcanbeobtained,thusyieldingthe3Dimage.TheGDDactsasaheterodynemixernotonlyelectronicallybutalsooptically.Thesuggested3DupconversiontechniqueusingtheGDDissimpleandinexpensiveandhasbetterperformancecomparedtootherMMW/THzimagingsystemssuggestedintheliterature.Thismethodprovidesminimumdetectablesignalpowerthatisabout6ordersofmagnitudebetterthansimilarplasmasystemsduetotheverylargeinternalsignalgainderivingfromthemuchsmallerelectrodeseparationandresultinginmuchhigherplasmaelectricfield.

简介：Three-componentIPNsweresynthesizedfrompolyurethane/poly(methylacrylateaminoethylmethacrylate)/epoxyresin[PU/P(MADMA)/EP]bysimultaneoussynthesisinterpenetratingpolymernetworksmethod(SINs)andsequentialsynthesisinterpenetratingpolymernetworksmethod(STPNs).Comparingtheeffectofthetwosynthesismethodsonthemorphologyandmechanicalpropertiesofthree-componentIPNs,itwasfoundthatthecompatibilityofthree-componentIPNsdependsonthecomponentratiosandinterpenetratingformation,thedifferentsynthesismethodsmaketheentanglementandinterpenetratingbetweennetworkschanged.ThetensilestrengthofSIPNsisbiggerthanthatofSINs,whiletheelongationatbreakofSINsisbiggerthanthatofSIPNs.Itisfeasibletousestepwisestainingmethodtoobservethemorphologychange.

简介：ＤＹＮＡＭＩＣＡＬＢＥＨＡＶＩＯＲＳＦＯＲＡＴＨＲＥＥ－ＤＩＭＥＮＳＩＯＮＡＬＤＩＦＦＥＲＥＮＴＩＡＬＥＱＵＡＴＩＯＮＩＮＣＨＥＭＩＣＡＬＳＹＳＴＥＭＬＩＮＹＩＰＩＮＧ（ＳｅｃｔｉｏｎｏｆＭａｔｈｅｍａｔｉｃｓ，ＫｕｎｍｉｎｇＩｎｓｔｉｔｕｔｅｏｆＴ...

简介：Theartificialboundarymethodisappliedtosolvethree-dimensionalexteriorproblems.Twokindofrotatingellipsoidsarechosenastheartificialboundariesandtheexactarti-ficialboundaryconditionsarederivedexplicitlyintermsofaninfiniteseries.Thenthewell-posednessofthecoupledvariationalproblemisobtained.Itisfoundthaterroresti-matesderiveddependonthemeshsize,truncationtermandthelocationoftheartificialboundary.Threenumericalexamplesarepresentedtodemonstratetheeffectivenessandaccuracyoftheproposedmethod.

简介：ThisarticleaddressessedimentresearchcarriedoutfortheThreeGorgesProjectsince1993,whentheconstructionoftheprojectwasformallystarted.Emphasisoftheresearchhasbeenplacedonthesolutionofrelevantproblemsarisingfromdesignandconstructionofvariousstructures,includingsedimentationproblemsintheChongqingreach;layoutoftheupperlockapproachchannelandwaysandmeanstomitigateitsdeposition;increasingreservoircapacitybyoptimizingreservoiroperation;compensatingdepthofflowrequiredbynavigationbelowtheGezhoubaProjectcausedbyscouring;mitigationofadverseeffectsoferosiononthereachfromZhichengtoJiangkou;andevaluatingscouroftheJinjiangreachcausedbyreleasingflowsoflowconcentrationsfromtheTGP.Inaddition,reductionofthesedimentloadenteringintothereservoirareaoftheTGPintherecentyearsaswellasthatexpectedoftheprojectedconstructionoflargehydropowerstationsontheJinshaRiverupstreamoftheTGPreservoirisalsonotedanddiscussed.

简介：1ＩｎｔｒｏｄｕｃｔｉｏｎＳｏｍｅｏｒｇａｎｉｃｃｏｍｐｏｕｎｄｓｃａｎｔｒａｎｓｆｅｒｅｎｅｒｇｙａｂｓｏｒｂｅｄｉｎＵＶｒｅｇｉｏｎｔｏｒａｒｅｅａｒｔｈｉｏｎｓｗｈｉｌｅｔｈｅｙｃｏｏｒｄｉｎａｔｅｄｗｉｔｈｔｈｅｉｏｎｓａｎｄｔｈｅｎｔｈｅｒａｒｅｅａｒｔｈｉｏｎｓｅｍｉｔｃｈａｒａｃｔｅｒｉｓｔｉｃｆｌｕｏｒｅｓｅｎｃｅ.Ｔｈｅｌｕｍｉｎｏｕｓｉｎｔｅｎｓｉｔｙａｎｄｌｉｆｅｔｉｍｅｏｆｔｈｅｃｏｏｒｄｉｎａｔｅｄｒａｒｅｅａｒｔｈｉｏｎｓｉｓｍｕｃｈｍｏｒｅｔｈａｎｔｈｏｓｅｏｆｔｈｅｆｒｅｅｉｏｎｓ.Ｓｏｓｃｉｅｎｔｉｓｔｓｔａｋｅａｎｉｎｔｅｒｅｓｔｉｎｔｈｅｓｅｃｏｍｐｌｅｘｅｓ[1,2].Ｉｎｔｈｉｓｐａｐｅｒ,ｉｎｏｒｄｅｒｔｏｓｅｅｋｎｅｗｌｕｍｉｎｏｕｓｍａｔｅｒｉａｌｅｘｉｔｅｄｗｉｔｈｌｏｗｅｒｅｎｅｒｇｙ,ＥｉｇｈｔｃｏｍｐｌｅｘｅｓｏｆＥｕ3+ｗｉｔｈｐｙｒｉｄｉｎｅ2,6ｄｉｃａｒｂｏｘｙｌｉｃａｃｉｄ(Ｈ2ＤＰＣ)、1,10ｐｈｅｎａｎｔｈｒｏｌｉｎｅ(ｐｈｅｎ)ａｎｄｍｅｔｈｙｌｂｅｎｚｏｉｃａｃｉｄ(ＭＢＡ),ｉｎｃｌｕｄｉｎｇ...

简介：Apiezoelectricaccelerometerwithopticalfibertomeasurethedynamicparameterof3dimensionsispresented.TheoperationequationsonX,YandZaxesaredivided,andthetestresultsof3dimensionalsensitivitiesandfrequencyresponse,aregivenaswellasexperimentresultsofvibrationtestwiththissetup.

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简介：EnhancementeffectsofrareearthelementsonthegrowthofChaetocerosmulleriisstudiedinthispaper.Theresultsshowthatallofthelight,middleandheavyrareearthelementshavesimilarenhancementeffectonthegrowthofChaetocerosmulleri,withthebeneficialconcentrationsofLa,GdandYbbeing7.28～87.40μmol/L,6.36～57.23μmol/Land5.78～17.34μmol/L.TheoptimumconcentrationsofLa,GdandYbare7.28～50.98μmol/L,31.80～44.52μmol/Land5.78～17.341μmol/L,respectively.WhentheconcentrationsofLa,GdandYbare7.28～87.40μmol/L,6.36～57.23μmol/Land5.78～17,34μmol/L,theconcentrationsofchlorophyllhaveincreasedby9.3～47.0%,33.4～44.3%,and36.5～40.3%,respectivelyascomparedwiththecontrolgroup.ThemechanismofenhancementofrareearthelementsonthegrowthotChaetocerosmulleriisalsodiscussedinthispaper.

简介：Thispaperisconcernedwiththenumericalsimulationoftheinjectionmoldfillingprocess.AmathematicalmodelbasedongeneralizedHele-Shawflowforaninelasticnon-Newtonianfluidundernonisothermalconditionsisused.Ahybridnumericalschemeisemployed.Thenumericalsimulatingre-sults,pressureandtemperatureprofile,locationofthemeltfronts,areinagoodagreementwiththeex-perimentalones.

简介：HoldingthegreatestpowertransmissioncapacityinChina,ThreeGorgespowertransmissionandsubstation(T&S)projectisanimportantlandmarkinthehistory

简介：ＤｏｕｂｌｅＢｅａｍｓｔｏＭｅａｓｕｒｅＴｈｒｅｅ－ｄｉｍｅｎｓｉｏｎａｌＲｉｇｉｄＢｏｄｙＤｉｓｐｌａｃｅｍｅｎｔｓ①ＺＨＯＵＪｉａｎ，ＣＨＥＮＷｅｎｙｉ，ＺＨＡＯＨｏｎｇＴＩＡＮＦｅｎｇ，ＴＡＮＹｕｓｈａｎ（ＲｅｓｅａｒｃｈＩｎｓｔｉｔｕｔｅｆｏ...

简介：Three-dimensional(3D)printing(3DP)isarapidprototypingtechnologythathasgainedincreasingrecognitioninmanydifferentfields.Inherentaccuracyandlow-costpropertyenableapplicabilityof3DPinmanyareas,suchasmanufacturing,aerospace,medical,andindustrialdesign.Recently,3DPhasgainedconsiderableattentioninthemedicalfield.Theimagedatacanbequicklyturnedintophysicalobjectsbyusing3DPtechnology.Theseobjectsarebeingusedacrossavarietyofsurgicalspecialties.Theshortageofcadaverspecimensisamajorprobleminmedicaleducation.However,thisconcernhasbeensolvedwiththeemergenceof3DPmodel.Custom-madeitemscanbeproducedbyusing3DPtechnology.Thisinnovationallows3DPuseinpreoperativeplanningandsurgicaltraining.Learningisdifficultamongmedicalstudentsbecauseofthecomplexanatomicalstructuresoftheliver.Thus,3Dvisualizationisausefultoolinanatomyteachingandhepaticsurgicaltraining.However,conventionalmodelsdonotcapturehapticqualities.3DPcanproducehighlyaccurateandcomplexphysicalmodels.Manytypesofhumanoranimaldifferentiatedcellscanbeprintedsuccessfullywiththedevelopmentof3Dbio-printingtechnology.Thisprogressrepresentsavaluablebreakthroughthatexhibitsmanypotentialuses,suchasresearchondrugmetabolismorliverdiseasemechanism.Thistechnologycanalsobeusedtosolveshortageoforgansfortransplantinthefuture.

简介：Inthispaper,weconsiderexistenceanduniquenessofpositivesolutionstothreecouplednonlinearSchrdingerequationswhichappearinnonlinearoptics.Weusethebehaviorsofminimizingsequencesforaboundtoobtaintheexistenceofpositivesolutionsforthreecoupledsystem.Toprovetheuniquenessofpositivesolutions,weusetheradialsymmetryofpositivesolutionstotransformthesystemintoanordinarydifferentialsystem,andthenintegratethesystem.Inparticular,forN=1,weprovetheuniquenessofpositivesolutionswhen0≤β=μ1=μ2=μ3orβ>max{μ1,μ2,μ3}.

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