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简介：这份报纸试图介绍一种交互颜色自然图象分割方法。这个方法由使用非线性的紧缩的结构张肌(NCST)然后使用GrabCut方法获得分割提取图象的特征。这个方法不仅认识到质地信息和颜色信息的非参量的熔化，而且改进计算的效率。然后，改进GrabCut算法被用来评估前景目标分割。以便计算简洁和效率，这份报纸也扩大构造的Gaussian混合模型(GMM)到张肌空间的GrabCut上的底，和使用Kullback-Leibler(KL)分叉而不是平常的Riemannian几何学。最后，一个重复集中标准被建议与满足的分割精确性戏剧性地减少GrabCut算法的重复的时间。在在合成质地图象和自然图象上进行很多实验以后，结果证明这个方法有更精确的分割效果。

简介：Chemicalmodificationandindustrialutilizationofligninbasedonitsstructurewerereviewedinthispaper.Anditseconomicvalueandsignificanceforthesocietyandenvironmentalprotectionwerealsoevaluated.

简介：Steel-concretecompositestructuresthatsharetheadvantagesofbothsteelstructureandconcretestructurehavebeendevelopedrapidlyandusedwidely.Ithasbeenapopularstructureinhigh-risebuildingsinrecentyears.Althoughmoreandmorecompositestructureshavebeenusedinearthquakearea,onlyafewliteraturesaboutfragilityanalysisofthistypeofstructureareavailable.Inthispaper,afragilityanalysismethodbasedonperformanceisproposed,inwhichboththeuncertaintyduetovariabilityinstructuresandgroundmotionareconsidered.Seismicfragilityanalysisisperformedfora15-storycompositebeam-concrete-filledsquaresteeltubecolumnframebytheproposedmethod.Thetop-drift-angleandthestory-drift-angleareusedasquantitativeindexestodefinethefourdifferentperformancelevels.Thenseismicdemandprobabilityanalysisiscarriedoutandfragilitycurvesarederivedtoassesstheseismicperformanceofthistypeofstructure.

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简介：Anovelmethodfordesigningabeam-switchingantennawiththeplanedipoleispresented.Theantennaiscomposedofdoubledipolesplacedatthecenterofanactivesquarestructurethatisdividedinfourequalsectorsbymetallicsheets.Metallicpatchesattheoutsideofthestructureareusedtoenhancetheradiationperformanceoftheantenna.Ineachstep,thediodesinonesectorareon,whereasotherdiodesareoff.Thesectorwithoff-statediodesdefinesthedirectionoftheradiationpattern.AnantennamodelisdesignedonthesubstrateofFR4.Theproposedantennaoperatesfrom4.8GHzto5.5GHzwithgainof6.3dBiandF/B(fronttobackratio)of13.2dBiwhentheoperatingfrequencyis5.2GHz.Theantennaradiationpatterncanbesweptintheentireazimuthplaneinfourstepswitha3dBbeamwidthof90.Theresultsrevealthattheantennacouldbeusedinthebasestationofthewirelesscommunicationsystems.

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简介：AnenhancedsystemarchitectureofWeb-basedproductstructureandconfigurationmanagementsystemalongwithits,functionsareispresented.Thekeytechniques,suchasconstructionofobjectmodelsofproductstructureandproductconfiguration,hybridapproachmethodinproductconfigurationmanagement,sharingandintegrationofheterogeneousproductdata,integrationwithothersub-systems,arediscussedtoo.AprototypesystemisdevelopedbyJ2EEtechnology.

简介：RationalizationofIndustrialStructureisessentialcharacteristicofeconomicdevelopmentandkeytopromotesustained,stable,coordinatedeconomicdevelopmentaswell.BasedonGreyRelevancyDegree,thepaperistoanalyzeindustrystructureinWenzhou,China.Andgivetheevaluationforrationalizationofindustrialstructure.

简介：ＡＭＵＬＴＩＰＬＥＳＴＲＵＣＴＵＲＥＲＥＣＯＮＳＴＲＵＣＴＩＯＮＡＬＧＯＲＩＴＨＭＢＡＳＥＤＯＮＷＩＲＥＦＲＡＭＥＭＯＤＥＬＤｕＪｉａｎｇｃｈｕａｎＰａｕｌＷ．Ｆ．ＰｏｏｎＡｂｓｔｒａｃｔＡ“ＬＡＧ＆ＲＬＣ”ｖｉｓｕａｌｉｚａｔｉｏｎａｌｇｏｒｉｔｈ...

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简介：AsimplephotoelasticopticalmodulatorwithaFabry-Perotcavitybasedonthesilicon-on-insulatorsystemwasfabricated.A50%modulationdepthhasbeenobtatinedatcurrentdensityofabout1.5×10^3A/cm^2.Theinsertionlosswasabout15dB.

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简介：Anovelmethodfordesigningabeam-switchingantennawiththeplanedipoleispresented.Theantennaiscomposedofdoubledipolesplacedatthecenterofanactivesquarestructurethatisdividedinfourequalsectorsbymetallicsheets.Metallicpatchesattheoutsideofthestructureareusedtoenhancetheradiationperformanceoftheantenna.Ineachstep,thediodesinonesectorareon,whereasotherdiodesareoff.Thesectorwithoff-statediodesdefinesthedirectionoftheradiationpattern.AnantennamodelisdesignedonthesubstrateofFR4.Theproposedantennaoperatesfrom4.8GHzto5.5GHzwithgainof6.3dBiandF/B(fronttobackratio)of13.2dBiwhentheoperatingfrequencyis5.2GHz.Theantennaradiationpatterncanbesweptintheentireazimuthplaneinfourstepswitha3dBbeamwidthof90.Theresultsrevealthattheantennacouldbeusedinthebasestationofthewirelesscommunicationsystems.

简介：Multicastcapability,includingmulticastaddressandmulticastroutingmechanisms,atthenetworklayerisnecessaryinordertoreducethebandwidthrequirementsofmultiparty,multicastapplications.Basedonhierarchicalautonomousstructureinaccordancewiththeself-organizationtopologiesofInternet,thepaperputsforwardamulticastaddressmanagementschemethatisshowntoberobustandscalable.Connectioncontrolhierarchy(CCH)basedonmaster/slaverelationshipandasimpleefficientbuildingalgorithmofmulti-pointconnectionisalsobuilt.Thepaperalsodescribesthenormaloperationsofmulticastaddressmanagementandmulti-pointconnectioncontroller.Throughsimulationexperiment,HAMCMandDDMofMulticastAddressAllocationarecompared.HAMintegratesthemeritsofCMandDDM,whichisefficientasawhole,robustandscalable.CCHraisestheefficiencyofconnectioncontrol,andishighlyrobust,flexibleandscalable.

简介：AccordingtospecificationsforWeldingProcedureQualificationofASMEIXSectionandChinesecode,JB4708-2000,asoftwarepackageformanagingweldingdocumentshasbeenrebuilt.Consequently,thenewsoftwarepackagecanbeusedinaLimitedAreaNetwork(LAN)with4differentlevelsofauthoritiesfordifferentusers.Therefore,theweldingdocuments,includingDWPS(DesignforWeldingProcedureSpecifications),PQRs(ProcedureQualificationRecords)andWPS(WeldingProcedureSpecifications)canbesharedwithinacompany.Atthesametime,thesystemprovidesusersvariousfunctionssuchasbrowsing,copying,editing,searchingandprintingrecords,andhelpsuserstomakedecisionofwhetheranewPQRtestisnecessaryornotaccordingtothecodesaboveaswell.Furthermore,superuserscanalsobrowsethehistoryofrecordmodificationandretrievetherecordswhenneeded.

简介：Inthispaper,thevibrationandsoundradiationoftheunderwatercomplexshell-structurewhichisthecylindricalshellwithhemi-sphericalshellontheendsarestudiedbystatisticalenergyanalysis(SEA).Thewholeshell-structureisdividedintothefoursubsystems,andtheSEAphysicalmodelandpowerflowbalanceequationsamongthesesubsystemsareestablished.Thesimilituderelationsofinputpower,couplinglossfactorandmodaldensityofthesubsystemsbetweenthecomplexshell-structureanditsscaled-downmodelareanalyzed.Accordingtothesimilitudetheoryandpowerflowbalanceequations,whentheimmergedshell-structuresareexcited,thesimilarrelationsofspatiallyaveragedvibrationresponseandunderwaterradiatingsoundpowerareestablishedforthecomplexshell-structureanditsscaled-downmodel.

简介：氢存储的关键是与轻集体、大表面和富有的吸附地点设计新材料。在综合基于最近的试验性的成功tripyrrylmethane，我们探索了Ti-tripyrrylmethane基于的2D为氢存储使用的多孔的结构密度功能的理论。我们发现了结构是稳定的，并且暴露的Ti地点能与平均绑定绑三个氢分子0.175eV/H的精力在房间温度并且在周围的压力为氢的存储和版本躺在精力窗户的2,。

简介：Withthepopularizationofe-learning,LearningSupportSystem(LSS)isplayinganincreasinglyimportantroleinteachingandthereformofeducation.Althoughpureresource-basedLSSisprevailed,itcannotmeettheneedsoflearningsupportintheeraofbigdataandmassiveresources.BasedontheteachingpracticeofLSSsupportingcomputercoursesinrecent10years,andcombinedwiththeexperienceofoptimizingLSSyearbyyear,theintelligentLSSdesignwithknowledgestructureasthemainbodyisproposed.AndtheLSSisoptimizedfromfiveaspects,includingmicro-resourcepackagestructureorientedtoknowledgepoints,knowledgestructuralreorganizationofthelearningresources,monitorandfeedbacklearningbehaviorguidedbyvisualtheoryoflearningprogress,resourcesrecommendationbasedonthestudyprogressandtheknowledgestructure,andreusinghigh-qualitydiscussionpostsandquestions.Teachingpracticehasprovedthatthestructureddesignofresourcepackagecanencourageimagination.Learningmonitoringandfeedbackmechanismcanmaintainmotivationandimproveself-efficacy.Learningresourcerecommendationstrategyplaysasignificantroleinhelpingstudentsfocusonlearningcontentandimproveefficiency.Highqualitypostisconducivetostudents’deeplearning.