简介：ＰＡＲＡＭＥＴＲＩＣＳＵＲＦＡＣＥ／ＳＵＲＦＡＣＥＩＮＴＥＲＳＥＣＴＩＯＮＺｅｎｇＸｉａｎｇｌｉｎ；ＷａｎｇＱｉｆｕ；ＺｈｏｕＪｉ；ＹｕＪｕｎＰＡＲＡＭＥＴＲＩＣＳＵＲＦＡＣＥ／ＳＵＲＦＡＣＥＩＮＴＥＲＳＥＣＴＩＯＮ￥ＺｅｎｇＸｉａｎｇｌｉｎ；Ｗａｎ...

简介：Inthispaper,amethodtoconstructasurfacewithpointinterpolationandnormalinterpolationispresented.Analgorithmtoconstructthediscreteinterpolationisalsopresented,whichhasthetimecomplexityO(NlogN),whereNinthenumberofscatteredpoints.

简介：Aminopropyl,ethylenediamine,ethenylandglycidoxygroupsfunctionalizednanoparticles,withaveragediametersrangingfrom4to6nmandcontaining1.17mmolofgroups/g,arereadilyobtainedfromnanodiamondsmodifiedwithsilanecouplingagent.Forthestudyofthesenanoparticles,TEM,IRS,XPS,andTGanalysismethodshavebeenused.

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简介：Thetimeevolutionofoxygenplasmatreatedpolystyrene(PS)surfaceswasinvestigateduponstoringthemintheairundercontrolledhumidityconditions.Themethodsofwatercontactangle,X-rayphotoelectronspectroscopy(XPS),sumfrequencygeneration(SFG)vibrationalspectroscopy,andatomicforcemicroscopy(AFM)wereusedtoinferthesurfacepropertiesandstructure.ChemicalgroupscontainingoxygenwereformedonthePSsurfacewiththeplasmatreatment,demonstratedbywatercontactangleandXPS.Thesurfacepolaritydecayedmarkedlyontime,asassessedbysteadyincreaseinthewatercontactangleasafunctionofstoragetime,fromzerotoaround60°.Theobserveddecayisinterpretedasarisingfromsurfacerearrangementprocessestoburyingpolargroupsawayfromtheuppermostlayerofthesurfaces,whichisincontactwithair.Ontheotherhand,XPSresultsshowthatthechemicalcompositioninthefirst3nmsurfacelayerisunaffectedbythesurfaceaging,andthedepthprofileofoxygenisessentiallythesamewithtime.ApossiblechangeofPSsurfaceroughnesswasexaminedbyAFM,anditshowedthattheincreaseofwatercontactangleduringsurfaceagingcouldnotbeattributedtosurfaceroughness.Thus,itisconcludedthatsurfaceagingisattributabletosurfacereorganizationandthemotionofoxygencontaininggroupsisconfinedwithintheXPSprobingdepth.SFGspectroscopy,whichisintrinsicallyinterface-specific,wasusedtodetectthechemicalstructureofPSsurfaceatthemolecularlevelaftervariousagingtimes.Theresultsareinterpretedasfollows.DuringtheagingoftheplasmatreatedPSsurfaces,theoxygencontaininggroupsundergoreorientationprocessestowardthepolymerbulkand/orparalleltothesurface,whiletheCH2moietystandsuponthePSsurface.Ourresultsindicatethatthesurfaceconfigurationchangesdonotrequirelargelengthscalesegmentalmotionsormigrationofmacromolecules.Motionsthatareresponsibleforsurfaceconfigurationchangescoul

简介：Thisreviewfocusedontherecentreportsrelatedtothefunction,characterizationandmodificationofoxygen-containingsurfacegroupsofactivatedcarbon(AC).TheOxygen-containingsurfacegroupswerebrieflydescribed,andthemostfrequentlyusedtechniquesforcharacterizationoftheoxygen-containingsurfacegroupsonACswerealsobrieflystated.Adetaileddiscussionoftheeffectsoftheoxygen-containingsurfacegroupsontheadsorptivecapacityofACwasgiven.Therecentprogressesinmodificationoftheoxygen-containingsurfacegroupsofACwerealsoreviewed.

简介：ＬＯＣＡＬＩＮＴＥＲＰＯＬＡＴＩＮＧＢＬＥＮＤＥＤＢ－ＳＰＬＩＮＥＳＵＲＦＡＣＥＡＮＤＩＴＳＣＯＮＶＥＲＳＩＯＮＴＯＴＨＥＮＵＲＢＳＳＵＲＦＡＣＥＷａｎｇＬａｚｈｕ；ＺｈｕＸｉｎｘｉｏｎｇＬＯＣＡＬＩＮＴＥＲＰＯＬＡＴＩＮＧＢＬＥＮＤＥＤＢ－ＳＰＬＩ...

简介：Aporosity-freeandcontamination-freesurfacelayerwithgrainsizesrangingfromnanometertomicrometerinFesampleswasobtainedbysurfacemechanicalattritiontreatment(SMAT)technique.MechanicalandwearpropertiesofthesurfacelayerintheSMATedandannealedFesamplesweremeasuredbymeansofnanoindentationandnanoscratchtests,respectively.ExperimentalresultsshowedthatthehardnessofthesurfacelayerintheSMATedFesampleincreasedevidentlyduetothegrainrefinement.TheelasticnoduliofthesurfacelayersintheSMATedandannealedFesampleswereunchanged,independentofgrainsizeinthepresentgrainsizeregime.ComparedwiththeoriginalFesample,thewearresistanceenhancedandthecoefficientoffrictiondecreasedinthesurfacelayeroftheSMATedFesample.

简介：ＣＵＲＶＥＡＮＤＳＵＲＦＡＣＥＩＮＴＥＲＰＯＬＡＴＩＯＮＢＹＳＵＢＤＩＶＩＳＩＯＮＡＬＧＯＲＩＴＨＭＳＲｕｉｂｉｎＱｕＣＵＲＶＥＡＮＤＳＵＲＦＡＣＥＩＮＴＥＲＰＯＬＡＴＩＯＮＢＹＳＵＢＤＩＶＩＳＩＯＮＡＬＧＯＲＩＴＨＭＳ￥ＲｕｉｂｉｎＱｕＡｂｓｔｒａ...

简介：PolysiliconMicroelectromechanicalsystems(MEMS)arethesubjectofintensiveresearches.SurfacechemistryandtopographyofaMEMSteststructurefabricatedatSandiaNationalLaboratory,USA,werestudiedbymeansofscanningelectronmicroscopy(SEM),X-rayphotoelectronspectroscopy(XPS)andatomicforcemicroscopy(AFM).XPSC()andSi2,spectrafromthepolysilieoncomponents,siliconnitridesubstrateandareferencesiliconwaferwerecompared.Theresultsconfirmthepresenceofaself-assembledmonolayer(SAM)ontheMEMSsurface.Anisland-likemorphologywasfoundonbothpolysiliconandsiliconnitridesurfacesoftheMEMS.Theislandstaketheformofcaps,beingupto0.5μmindiameterand20nminheight.Itisconcludedthattheco-existenceofcolumnargrowthandequiaxedgrowthduringthelowpressurechemicalvapordeposition(LPCVD)oftheselayersleadstotheobservedmorphologyandtheislandsarecapstothecolumnarstructures.

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简介：Thesurfacecoatingofgrindingballswasinvestigatedexperimentally.TheresultsshowthatacoatingmayformonthesurfaceofgrindingballswhenCrorAlpowdersaresubjectedtoballgrinding.Theplasticdeformationoftheballsurfaceplaysanimportantroleduringthecoatingformation,andthestrongbindingforcebetweenthepowdersandtheballsisanecessarypre-condition.Thethicknessofcoatingincreaseswiththeplasticityofthepowdersandtheballs.Annealingtheballswithcoatingwillresultinanobviousdiffusionoftheelementsinthebondingzoneofinter-face.

简介：处理技术的计算机图象被用来在木头表面上完成缺点图象的特征抽取。由缺点的灰色的价值的计算。有用鉴别缺点被完成了的三个特征数据。实验显示那这样对木头表面上的缺点的自动化识别有效。

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简介：Thispaperfirstdevelopstheapproachestodeterminethegeopotentialofthelocalmeansealevel,andtheninvestigatestheoffsetofthe1985verticaldatumsurfacedefinedbythemeansealevelofYellowSeaattheDagangTideGaugeinQingdaocityusingthedevelopedapproachesandGPS/levelingdata.Itshowsthatthegeopotentialofthelocalmeansealevelatthetidegaugeisequalto62636853.5±0.2m2*s-2andthatthe1985verticaldatumsurfaceis24.6±5.4cmabovethegeoidrealizedbythegeopotentialW0=62636856.0±0.5m2*s-2.

简介：ＳＨＥＬＬＡＤＡＰＴＩＶＥＴＲＩＡＮＧＵＬＡＴＩＯＮＯＦＴＲＩＭＭＥＤＮＵＲＢＳＳＵＲＦＡＣＥＷａｎｇＨｕｉｃｈｅｎｇＺｈａｎｇＸｉｎｆａｎｇＺｈｏｕＪｉＡｂｓｔｒａｃｔＴｈｅｐａｐｅｒｐｒｅｓｅｎｔｓａｎｅｗａｐｐｒｏａｃｈｆｏｒｔｒｉａｎｇｕｌａ...

简介：OnthebasisofgradientdataofthesurfacelayerobtainedfromfoursetsofAutomaticWeatherStation(AWS)installedinLhasa,Nagqu,XigazeandNyingchiontheTibetanPlateaufromJuly1993toMarch1999accordingtotheprojectofPRC-JapanAsiamonsoonmechanismcooperativeresearch,theseasonalsurfaceroughnesslengthsanddiurnalbulktransfercoefficientsateachstationareestimated.Thenthesurfacefluxesofmomentum,sensibleheatandlatentheatarecalculatedbyusingbulkformulation,Moreover,thecompositecharacteristicsofdiurnalandmonthlyvariationofsurfacefluxesareemphaticallyanalyzedinthispaper.

简介：Inthispaper,aphotoelectricdeviceisintroduced,whichisusedinde-tectingthequalityoninternalsurfaceofthinandlongsteelpipe.Inthisdevice,theCCTVlensisusedforextracttheflawinformationoninternalsurfaceofthepipe,andmakeIBM-PC/AT486computerascontrollingandimageprocessingsystem.Bythisinstrument,thefunctions,suchasthedigitalconversiongofinputinformation,imageprocessing,classificationofrecognitionandoutputdisplaycanbeobtained,Inthepetroleumandchemicalindustry,byusingthisapparatus,wecandetectthequalithoninternalsurfaceofvariousmetalpipeswithreal-timeautomatically.

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