简介：Thispaperstudiestheglobalrobustoutputregulationproblemforlowertriangularsystemssubjecttononlinearexosystems.Byemployingtheinternalmodelapproach,thisproblemcanbeboileddowntoaglobalrobuststabilizationproblemofatime-varyingnonlinearsysteminthecascade-connectedform.Then,asetofsufficientconditionsforthesolvabilityoftheproblemisderived,andthus,leadingtothesolutiontotheglobalrobustoutputregulationproblem.Anapplicationofthemainresultofthispaperisalsoproposed.

简介：Inthispaper,theglobalasymptoticstabilizationbyoutputfeedbackisinvestigatedforaclassofuncertainnonlinearsystemswithunmeasuredstatesdependentgrowth.Comparedwiththecloselyrelatedworks,theremarkablenessofthepaperisthateitherthegrowthrateisanunknownconstantorthedimensionoftheclosed-loopsystemissignificantlyreduced,mainlyduetotheintroductionofadistinctdynamichigh-gainobserverbasedonanewupdatinglaw.Motivatedbytherelatedstabilizationresults,andbyskillfullyusingthemethodsofuniversalcontrolandbackstepping,weobtainthedesignschemetoanadaptiveoutput-feedbackstabilizingcontrollertoguaranteetheglobalasymptoticstabilityoftheresultingclosed-loopsystem.Additionally,anumericalexampleisconsideredtodemonstratetheeffectivenessoftheproposedmethod.

简介：Thispaperisconcernedwiththeglobalstabilizationviaoutput-feedbackforaclassofhigh-orderstochasticnonlinearsystemswithunmeasurablestatesdependentgrowthanduncertaincontrolcoefficients.Indeed,therehavebeenabundantdeterministicresultswhichrecentlyinspiredtheintenseinvestigationfortheirstochasticanalogous.However,becauseofthepossibilityofnon-uniquesolutionstothesystems,therelackbasicconceptsandtheoremsfortheproblemunderinvestigation.Firstofall,twostochasticstabilityconceptsaregeneralizedtoallowthestochasticsystemswithmorethanonesolution,andakeytheoremisgiventoprovidethesufficientconditionsforthestochasticstabilitiesinaweakersense.Then,byintroducingthesuitablereducedorderobserverandappropriatecontrolLyapunovfunctions,andbyusingthemethodofaddingapowerintegrator,acontinuous（nonsmooth）output-feedbackcontrollerissuccessfullydesigned,whichguaranteesthattheclosed-loopsystemisgloballyasymptoticallystableinprobability.

简介：Becomingtheworld’slargestemitterofcarbonmakesChinatheobjectofcriticism;however,peoplemayignorethefactthatwhenChinaexportslow-carbonproducts,thecarbonemissionshavebeenleftinthemeanwhile,formingtheso-called"embodiedcarbon".Usingtheinput-outputmodel,thispaperanalyzesthecarbonemissionintensityandamountofembodiedcarbonofvarioussectorsinChina’sexporttradein2002and2007,andfiltersouthighcarbonemissionsectors.Inaddition,thispaperalsopointsouttheproblemofcarbonemissions’internationaltransferfromdevelopedcountriestoChinathroughtheanalysisofnationalandregionalflowofexportcarbonemissionsandchangingoftheproportionofemissionsforexportsrelativetototalemissions,andexplainsthereasonthatcausedcarbontransfertoChinabyusingthetreadmillofproductiontheory.Basedonthat,thispaperproposessomemeasuresforcarbonreductioninChinafromtheforeigntradeperspective.