简介:Withtherapidgrowthoftheinternet,thefastinformationcommunicationandthecomprehensiveinformationpublicationbecomeavailable.Toattracttheattentionofbrowsersandletbrowsersknowthehotnewsintime,awebsiteisrequiredtoupdateitscontentconstantly.Thetraditionalmodetomanuallyupdatewebsiteisnolongersuitablefortherapidgrowthofwebsitecontents.Moreover,
简介:这篇论文首先介绍一个方法与高多角形计数改进交流通过在一个以内的基于图象的表示的“混合”的使用的虚拟目标反对。也就是说,多角形的3D和基于图象的代表为一个目标被维持,并且为使变为取决于目标的功能要求切换。而且,减少突然发生的无异状在目标表示开关期间完成并且提供光滑、渐渐的转变,目标与可能不同地代表的细分的部分被细分,即,用3D模型或图象。至于基于图象的表示,消除质地(RT)方法被使用。通过混合表示的使用,特别地,称为TangibleScreen的一个新方法被建议由把基于图象的表示与联系提供目标可触知一物理支撑(投射RT)以一个选择、灵活的方法。总的来说,建议方法提供一个方法在大规模虚拟环境与选择感性的细节维持交互框架率,当允许用户以一个有形的方法与虚拟目标交往时。
简介:Electricalcapacitancetomography(ECT)wasappliedinmeasuringxolidsdistributioninsquarecirculatingfluidizedbeda.Thefluidizationconditionsvariedfrombubblingfluidizedbedtocirculatingfluidizedbed.Inthewholerangeoffluidizationconditions,ECTwasabletoinstantaneouslyprovidethesolidsconcentrationandvoidsdistributionsinthefluidizedbeds.AccordingtotheacquireddatafromECTandreconstructedimage,differentfluidizationregimescanalsobeidentified.
简介:InPintegratedphotonicshasbecomeacriticalenablerformoderntelecommunications,andispoisedtorevolutionizedatacommunications,precisionmetrology,spectrometry,andimaging.Thepossibilitytointegratehigh-performanceamplifiers,lasers,modulators,anddetectorsincombinationwithinterferometerswithinonechipisenablinggame-changingperformanceadvances,energysavings,andcostreductions.Genericintegrationacceleratesprogressthroughtheseparationofapplicationsfromacommontechnologydevelopment.Inthispaper,wereviewthecurrentstatusinInPintegratedphotonicsandtheeffortstointegratethenextgenerationofhigh-performancefunctionalityonacommonsubstrateusingthegenericmethodology.
简介:Weexperimentallydemonstrateextractionofsiliconwaveguidegeometrywithsubnanometeraccuracyusingopticalmeasurements.Effectiveandgroupindicesofsilicon-on-insulator(SOI)waveguidesareextractedfromtheopticalmeasurements.AnaccuratemodellinkingthegeometryofanSOIwaveguidetoitseffectiveandgroupindicesisusedtoextractthelinewidthsandthicknesseswithinrespectiveerrorsof0.37and0.26nmonadiefabricatedbyIMECmultiprojectwaferservices.Adetailedanalysisofthesettingoftheboundsfortheeffectiveandgroupindicesispresentedtogettherightextractionwithimprovedaccuracy.
简介:Weinvestigatethenonlinearresponseofterahertz(THz)metamaterialperfectabsorbersconsistingofelectricsplitringresonatorsonGaAsintegratedwithapolyimidespacerandgoldgroundplane.Theseperfectabsorbersonbulksemi-insulatingGaAsarecharacterizedusinghigh-fieldTHztime-domainspectroscopy.Theresonancefrequencyredshifts20GHzandtheabsorbanceisreducedby30%astheincidentpeakfieldisincreasedfrom30to300kV/cm.ThenonlinearresponsearisesfromTHzfielddriveninterbandtransitionsandintervalleyscatteringintheGaAs.ToeliminatetheFresnellossesfromtheGaAssubstrate,wedesignandfabricateaflexiblemetamaterialsaturableperfectabsorber.Theabilitytocreatenonlinearabsorbersenablesappealingapplicationssuchasopticallimitingandself-focusing.
简介:Threecouplingcoefficientsaredefinedtodescribespatiotemporalcouplinginultrashortpulses.Withthesecouplingcoefficients,thefirst-orderspatiotemporalcouplingsofGaussianpulseandbeamaredescribedanalytically.Also,thefirst-orderandthesecond-orderspatiotemporalcouplingscausedbyangulardispersionelementsarestudiedusingthesecouplingcoefficients.Itcanbeshownthatthesecouplingcoefficientsaredimensionlessandnormalized,andreadilyindicatetheseverityofspatiotemporalcoupling.