简介：AnewsingularityextractiontechniqueispresentedtocalculateaccuratelythesingularintegralsinTimeDomainElectricFieldIntegralEquation(TDEFIE).Insingularityextractionpro-cedure,throughtheaidofthefirstorderTaylorseriesoftimebasefunctionincludingtime-retardation,thesingularityoftheintegrandcanberemoved.Thesurfacecurrentdensityandbackscatteredfar-fieldresponseofaconductingcubeilluminatedbyaGaussianplanewaveiscom-putedusingthepresentedtechnique.ComparisonsaremadewiththeresultsobtainedbytheInverseDiscreteFourierTransform(IDFT)ofthefrequencydomainandtheresultsobtainedbyusingVe-chinski'stimeaveragingtechnique,whichdemonstratethatthepresentedmethodwiththisnewtimedomainsingularityextractiontechniquetosolveTDEFIEisveryaccurateandstable.

简介：Afterreviewingcurrentresearchesonearlywarning,itisfoundthat'bad'dataofsomesystemsisnoteasytoobtain,whichmakesmethodsproposedbytheseresearchesunsuitableformonitoredsystems.AninteractiveearlywarningtechniquebasedonSVDD(supportvectordatadescription)isproposedtoadopt'good'dataassamplestoovercomethedifficultyinobtainingthe'bad'data.Theprocessconsistsoftwoparts:(1)Ahypersphereisfittedon'good'datausingSVDD.Ifthedataobjectareoutsidethehypersphere,itwouldbetakenas'suspicious';(2)Agroupofexpertswoulddecidewhetherthesuspiciousdatais'bad'or'good',earlywarningmessageswouldbeissuedaccordingtothedecisions.Andthedetailedprocessofimplementationisproposed.Atlast,anexperimentbasedondataofamacroeconomicsystemisconductedtoverifytheproposedtechnique.

简介：Inthispaperthemodelling,analysisandoptimizationofmillimeterwaveoscillatorsareinvestigatedbyusingtheafrequency-domainharmonicbalancetechnique(FDHB),wheretheexternal-circuitimpedanceslookingoutsidefromtheactivedevicearecalculatedwithacombinedtechniqueofmodesexpansion,Galerkin,andcollocationmethods.Theoptimizationresultsareinagreementwiththeexperimentalones,whichshowthereliabilityofthepresentedmodelandoptimization.

简介：Thesignalprocessingcircuitsofpositionsensitivedetector(PSD)withalternatinglightsourcearepresented.ThemeasuringdeviceofPSDwithalternatinglightsourcecaneffectivelyeliminatetheinterferencemadebylightnoisesignal.

简介：ThisletterstudiesonthedetectionoftexturefeaturesinSyntheticApertureRadar(SAR)images.ThroughanalyzingthefeaturedetectionmethodproposedbyLopes,animprovedtexturedetectionmethodisproposed,whichcannotonlydetecttheedgeandlinesbutalsoavoidstretchingedgeandsuppressinglinesoftheformeralgorithm.ExperimentalresultswithbothsimulatedandrealSARimagesverifytheadvantageandpracticabilityoftheimprovedmethod.

简介：Apassiveopticalnetwork(PON)monitoringsystemcombinedlightpulseandfrequencysweeptechniquesisproposedandverifiedinafieldtest.Thelightpulsesurveysovertheallwholenetworkandthefrequencysweepareusedtoinvestigateanyfaultinthelink.Thefieldtestisperformedwith4PONs.EachPONismonitoredat4ports,oneisthesplitterportandtheotherthreearearbitrarychosenmultipleopticalunits(ONUs).AllthetestedPONsaremonitoredinturnsonceperhour.Faultsatthefeederandbranchfiberhavebeenobservedinthisfieldtestandhavebeenanalyzedwiththemonitoringsystem.

简介：Theadaptivereconstructionforthelostinformationoftherectangularimageareaisveryimportantfortherobusttransmissionandrestorationoftheimage.Inthispaper,anewreconstructionmethodbasedontheDiscreteCosineTransform(DCT)domainhasbeenputforward.AccordingtothelowpasscharacterofthehumanvisualsystemandtheenergydistributionoftheDCTcoefficientsontherectangularboundary,theDCTcoefficientsoftherectangularimageareaareadaptivelyselectedandrecovered.AftertheInverseDiscreteCosineTransform(IDCT),thelostinformationoftherectangularimageareacanbereconstructed.Theexperimentshavedemonstratedthatthesubjectiveandobjectivequalitiesofthereconstructedimagesareenhancedgreatlythanbefore.

简介：Inthispaper,anovelfacerecognitionmethod,namedaswavelet-curvelet-fractaltechnique,isproposed.Basedonthesimilaritiesembeddedintheimages,weproposetoutilizethewave-let-curvelet-fractaltechniquetoextractfacialfeatures.Thuswehavethewavelet’sdetailsindiagonal,vertical,andhorizontaldirections,andtheeightcurveletdetailsatdifferentangles.ThenweadopttheEuclideanminimumdistanceclassifiertorecognizedifferentfaces.Extensivecomparisontestsondif-ferentdatasetsarecarriedout,andhigherrecognitionrateisobtainedbytheproposedtechnique.

简介：Inthispaper,animprovedmethod,whichisbasedontheharmonic-balancetech-nique,forspeedinguptheconvergenceiterationprocedureispresented.Asanexample,itisappliedtothenonlinearanalysisofmicrowavemixer,inwhichasimpletimedomaintofre-quencydomaintransformationtechniqueforthemixerdiodeisfirstlyintroduced.Theuseofthistechniquesavescomputingtimedramatically.Andtheanalyzedresultsareingoodagreementwiththeresultspublished.TheimprovedmethodcanalsobeextendedtotheCAAofnonlinearcircuitswithmulti-devices.

简介：Thispaperproposesanewtechniquethatisusedtoembeddepthmapsintocorresponding2-dimensional(2D)images.Sincea2Dimageanditsdepthmapareintegratedintoonetypeofimageformat,theycanbetreatedasiftheywereone2Dimage.Thereby,itcanreducetheamountofdatain3Dimagesbyhalfandsimplifytheprocessesforsendingthemthroughnetworksbecausethesynchronizationbetweenimagesfortheleftandrighteyesbecomesunnecessary.Weembeddepthmapsinthequantizeddiscretecosinetransform(DCT)dataof2Dimages.Thekeytothistechniqueiswhetherthedepthmapscouldbeembeddedinto2Dimageswithoutperceivablydeterioratingtheirquality.Wetrytoreducetheirdeteriorationbycompressingthedepthmapdatabyusingthedifferencesfromthenextpixeltotheleft.Weassumethatthereisonlyonenon-zeropixelatmostononehorizontallineintheDCTblockbecausethedepthmapvalueschangeabruptly.Weconductanexperimenttoevaluatethequalityofthe2Dimagesembeddedwithdepthmapsandfindthatsatisfactoryqualitycouldbeachieved.

简介：Thepropertyofsiliconmicro-capacitiveaccelerometerisanalyzedanddiscussedbyestablishingthemodelofthesensor,tolayabasisforoptimizationdesignofsensorsystemstructure.Discussedissuesincludethestaticmodelinganddynamicbehaviorofthetwocommnlyusedstructures,i.e.,double-cantileversupportedandfour-beamsupportedstructures,andalsothemeasurementrangeofthesedevices.

简介：Waveguideinvariantiswidelyusedinunderwatertargetpassiveranging.Inshallowwaterwithuniformsoundspeedprofile,thevalueofwaveguideinvariantisapproximatelyaconstant,whileinshallowwaterwiththermocline,itvariesinawiderange.Thewaveguideinvariantdistributionsandstriationsinthesetwoconditionsareanalyzedrespectively.Onthebasisofwavenumberdifferencebetweenreflectedmodesandrefractedmodes,awavenumber-frequencydomainfilteringtechniqueisproposedtoseparatethetwogroupsofmodes.Therequiredrelationshipbetweenarrayelementspace,totalarraylengthandtargetazimuthforeffectiveapplicationisdiscussed.Finally,thesimulationresultsindicatethatinshallowwaterwithathermocline,refractedmodescanbeeffectivelyfilteredoutusingthewavenumber-frequencydomainfilteringtechniqueandthetarget’srangeisestimatedaccurately.

简介：Themethodofusingmultiplexingtechniquetorealizetheopticallypoweredmultipledetectionsystemispresented.Asthissystemadoptednoveltimeandpulsewidthmultiplexingtechniques,reliableseparationanderrorcodecorrectingtechniques,itrealizesopticallypoweredmultiplechannelandparametersdetection,andsuccessfullyappliedintheoiltanksfortemperature,pressure,liquidlevelandreservemeasurings.

简介：Vehicleanti-collisiontechniqueisahottopicintheresearchareaofIntelligentTransportSystem.Theresearchonprecedingvehiclesdetectionandthedistancemeasurement,whicharethekeytechniques,makesgreatcontributionstosafe-driving.Thispaperpresentsamethodwhichcanbeusedtodetectprecedingvehiclesandgetthedistancebetweenowncarandthecarahead.Firstly,anadaptivethresholdmethodisusedtogetshadowfeature,andashadow!areamergingapproachisusedtodealwiththedistortionoftheshadowborder.Regionofinterest(ROI)isobtainedusingshadowfeature.ThenintheROI,symmetryfeatureisanalyzedtoverifywhethertherearevehiclesandtolocatethevehicles.Finally,usingmonocularvisiondistancemeasurementbasedoncamerainteriorparametersandgeometricalreasoning,wegetthedistancebetweenowncarandtheprecedingone.Experimentalresultsshowthattheproposedmethodcandetecttheprecedingvehicleeffectivelyandgetthedistancebetweenvehiclesaccurately.

简介：线性系统的一个反复的答案被学习，它从天线由混合有限元素的方法和时刻的方法与绝缘的目标依附的一根电线的discretization产生(混合女性妈妈).It是有效的由混血儿为如此的电磁的问题建模女性妈妈，因为它两个都拿优点女性的并且妈妈的ability.But结果的线性系统是复杂的，并且它是难的被Krylovsubspace方法独自解决，一种二水平的preconditioning技术将因此是

简介：在这份报纸，一个新毫米波浪(公里波浪)波长部门multiplexing(WDM)系统基于radio-over-fiber(ROF)，技术被建议。在这条途径，多波长光来源被supercontinuum(SC)获得技术，和公里波浪信号被使用光外差获得方法。我们试验性地为6-WDM隧道表明光搬运人的产生，由采用光heterodyne技术获得40个GHz公里波浪信号，并且成功地完成在在在G.652纤维的25km的距离上的WDM隧道的2.5Gbit/s的低误差率传动。试验性的结果证实建议答案可行、合算。

简介：Tomakeuseofthepriorknowledgeoftheimagemoreeffectivelyandrestoremoredetailsoftheedgesandstructures,anovelsparsecodingobjectivefunctionisproposedbyapplyingtheprincipleofthenon-localsimilarityandmanifoldlearningonthebasisofsuper-resolutionalgorithmviasparserepresentation.Firstly,thenon-localsimilarityregularizationtermisconstructedbyusingthesimilarimagepatchestopreservetheedgeinformation.Then,themanifoldlearningregularizationtermisconstructedbyutilizingthelocallylinearembeddingapproachtoenhancethestructuralinformation.Theexperimentalresultsvalidatethattheproposedalgorithmhasasignificantimprovementcomparedwithseveralsuper-resolutionalgorithmsintermsofthesubjectivevisualeffectandobjectiveevaluationindices.

简介：Inordertodecreasetheconsumptionofreagentsandsiliconduringremovalofsurfacecontaminationbeforesilicontexturinginsolarcellmanufacturingindustry,anewlow-costsurfacetreatmentapproachofelectrochemicalcleaningtechnique(ECT)isreported.Inthistechnique,apowerfuloxidizingelectrolytewasobtainedfromtheelectrochemicalreactiononBoron-dopedDiamond(BDD)electrodes,andappliedduringremovalofsurfacecontaminationsonsiliconwafersurfaces.Theslightlypolishedmonocrystallinesiliconsurfacesaftercleaningwerecomparedwiththeonesofprimalsiliconwafers.ThemeasurementresultsshowthatECTisquiteefficientinremovingNaClandorganiccontaminants.Aftercleaning,thecontrasttestwasconductedforthetexturedsiliconwaferswith/withoutpre-treatment(polish)separately.Theresultsshowthatthesizeofpyramidsonthesurfacewithouttraditionalpolishingprocessishomogeneousandsmallerthan4μm,andtheaveragesurfacereflectanceismuchlowerinthewavelengthrangefrom400nmto800nm.Therefore,thenewtechniquecansavesiliconmaterial,andeffectivelyavoidopticallossesforimprovingphotoconversioneffectofsolarcells.

简介：在这份报纸，结果在导致激光的故障光谱学(解放)的第一应用上被介绍为在alpha石蜡的Mg集中的量的决心的技术。这种技术在与传统的方法的那些可比较的Mg集中给精确性，这被表明，作为ICP-OES，在短时间并且没有对样品准备的需要。为500ppb的顺序的Mg的察觉的限制被表明。而且，关于合适的刻度曲线和察觉(LOD)的限制的定义的实现的简短讨论被报导。CLC数字TP274

简介：Multi-ThresholdCMOS(MTCMOS)isaneffectivetechniqueforcontrollingleakagepowerwithlowdelayoverhead.HoweverthelargemagnitudeofgroundbouncingnoiseinducedbythesleeptoactivemodetransitionmaycausesignalintegrityprobleminMTCMOScircuits.Weproposeamethodologyforreducinggroundbouncingnoiseunderthewake-updelayconstraint.Animprovedtwo-stageparallelpowergatingstructurethatcansuppressthegroundbouncingnoisethroughturnonsetsofsleeptransistorsconsecutivelyisproposed.Thesizeofeachsleeptransistorisoptimizedbyanovelsizingalgorithmbasedonasimpledischargingmodel.Simulationresultsshowthattheproposedtechniquesachieveatleast23%improvementintheproductofthepeakamplitudeofgroundbouncingnoiseandthewake-uptimewhencomparedwithotherexistingtechniques.