简介:Thesurfaceandinterfaceelectronicstatesoftris-(8-hydroxyquinoline)aluminum(Alq3)/indium-tinoxide(ITO)weremeasuredandanalyzedbyX-rayphotoelectronspectroscopy(XPS).Theresultsindicatedthat,inAlq3molecule,thebindingenergy(Eb)ofAlatomsis70.7eVand75.1eV,correspondingtoAl(O)andAl(Ⅲ),respectively;ThebindingenergyofCis285.8eV,286.3eV,and286.8eV,correspondingtoCofC-Cgroup,C-O,andC-Nbond,respectively.Nisthemainpeaklocatingat401.0eV,correspondingtoNatomofC-N=C.OatomsmainlybondtoHatom,withthebindingenergyof533.2eV.AsthesputteringtimeofAr+ionbeamincreases,Al2p,C1s,N1s,O1s,In3d5/2andSn3d5/2peaksslightlyshifttowardslowerbindingenergy,andAl2p,C1sandN1speaksgetweaker,whichcontributestodiffusingtheoxygen,indiumandtininITOintoAlq3layer.
简介:Inordertoobtainthethreedimensional(3D)fluorescencespectradirectlyandrapidlybyinsituandinvivophytoplanktonmonitoring,aprototypeoceanlidarsystemwiththeabilityofmeasuring3Dfluorescencespectraisdeveloped,inwhichanopticalparametricoscillator(OPO)andagratingspectrometerareemployed.Usingthesystem,the3Dfluorescencespectraoffivetypicalred-tidespeciesintheEastChinaSeaaremeasuredinlab.Thepreliminaryexperimentalresultsshowthefeasibilityofmonitoringandclassifyingphytoplanktonbythisoceanlidar.
简介:Toquicklyobtainaccurate3Ddataofdentalcastmodel,thispaperproposesa3Dreconstructionmethodfordentalcastmodelbasedonstructuredlight.Thismethodcombinesthestructuredlightwiththemotorturntabletoobtainagroupof3Ddataforthedentalcastmodelfrommultipleangles,andautomaticallyregistersthedental3Ddatafrommultipleanglesthroughtheballcalibrationofturntable.Comparedwiththerealdataofthedentalcastmodel,themaximumerrorofthe3Dreconstructionresultsinthispaperis0.115mm.Thereconstructiontimeofthisprocessisabout130s.Theexperimentalresultsshowthatthemethodhashighprecisionandhighscanningspeedforthe3Dreconstructionofthedentalcastmodel.
简介:Doubledataratesynchronousdynamicrandomaccessmemory(DDR3)hasbecomeoneofthemostmainstreamapplicationsincurrentserverandcomputersystems.Inordertoquicklysetupasystem-levelsignalintegrity(SI)simulationflowfortheDDR3interface,twosystem-levelSIsimulationmethodologies,whichareboard-levelS-parameterextractioninthefrequency-domainandsystem-levelsimulationassumptionsinthetimedomain,areintroducedinthispaper.BycomparingtheflowofSpeed2000andPowerSI/Hspice,PowerSIischosenfortheprintedcircuitboard(PCB)board-levelS-parameterextraction,whileTektronixoscilloscope(TDS7404)isusedfortheDDR3waveformmeasurement.Thelabmeasurementshowsgoodagreementbetweensimulationandmeasurement.ThestudyshowsthatthecombinationofPowerSIandHspiceisrecommendedforquicksystem-levelDDR3SIsimulation.