简介：Inthispaper,ahybridadaptivecompensationcontrolschemeisproposedtocompensatethefrictionoccurrenceandothernonlineardisturbancefactorsthatexistinthehigh-precisionservosystem.Anadaptivecompensationcontrollerwithadual-observerstructureisdesigned,whiletheLuGredynamicfrictionmodelwithnon-uniformparametricuncertaintiescharacterizesthefrictiontorque.Consideringtheinfluenceoftheperiodicdisturbancetorqueandparametricuncertainties,fuzzysystemsandarobusttermareemployed.Inthisway,thewholesystemcanbetreatedasasimplelinearmodelafterbeingcompensated,thentheproportional-derivative(PD)controllawisappliedtoenhancingthecontrolperformance.OnthebasisofLyapunovstabilitytheory,theglobalstabilityandtheasymptoticconvergenceofthetrackingerrorareproved.Numericalsimulationsdemonstratethattheproposedschemehaspotentialstorestraintheimpactofdisturbanceandimprovingthetrackingperfor

简介：最少的工具广场(LMS)适应过滤器算法在活跃暂停系统被使用。由调整适应过滤器的重量，最小的二次的表演索引被获得。为two-degree-of-freedom车辆暂停模型，LMS适应控制器被设计。触发的团和没有安装弹簧的质量的加速作为暂停性能的评估目标被决定。为LMS适应控制暂停，与被动暂停相比，加速力量光谱在道路输入模型decreased8-10下面的触发的集体加速的密度在高频率回声乐队或低频率回声乐队预定。模拟结果证明LMS适应控制简单、显著地有效。它进一步证明活跃控制暂停系统能处于各种各样的操作条件改进骑的舒适和处理安全，并且方法为暂停系统的活跃控制是合适的。

简介：AMultimediastreamsdynamicratecontrolalgorithmbasedonFuzzyadaptivePID(MFPID)hasbeenproposedtoimplementmultimediastreams'endsendingrateon-lineself-regulatingandsmoothing,andtotracksystemresourcesintime,sothatitcanavoidsystem'sregulatingoscillationandguaranteesystem'sstability.And,someworkhasbeendonetoanalyzeadaptivesessionmodelofmultimediastreams,toimplementfutureavailablebandwidthestimationofIPnetwork,toachievePIDparameters'on-lineself-tuningbyfuzzycontrolling.SimulationvalidatedthetheoreticalresultsofMFPID.

简介：Anewrnultiscaleedgedetectionmethodispresented,whichisbasedonaneffectiveedgemeasure.Theeffectiveedgemeasure,usedtoadaptivelyadjustthescalesofwavelettransform,isdefinedusingthenovelfeaturesofimageedgeobtainedfromhumanbeingvisioncharacteristics.Finally,twoexperimentsshowthattheproposedalgorithmappearstoworkwell.

简介：ToovercometheshortcomingsoftheLeeimageenhancementalgorithmanditsimprovementbasedonthelogarithmicimageprocessing(LIP)model,thispaperproposeswhatwebelievetobeaneffectiveimageenhancementalgorithm.Thisalgorithmintroducesfuzzyentropy,makesfulluseofneighborhoodinformation,fuzzyinformationandhumanvisualcharacteristics.Toenhanceanimage,thispaperfirstcarriesoutthereasonablefuzzy-3partitionofitshistogramintothedarkregion,intermediateregionandbrightregion.Itthenextractsthestatisticalcharacteristicsofthethreeregionsandadaptivelyselectstheparameterαaccordingtothestatisticalcharacteristicsoftheimage’sgray-scalevalues.Italsoaddsausefulnonlineartransform,thusincreasingtheubiquityofthealgorithm.Finally,thecausesforthegray-scalevalueovercorrectionthatoccursinthetraditionalimageenhancementalgorithmsareanalyzedandtheirsolutionsareproposed.Thesimulationresultsshowthatourimageenhancementalgorithmcaneffectivelysuppressthenoiseofanimage,enhanceitscontrastandvisualeffect,sharpenitsedgeandadjustitsdynamicrange.

简介：这篇论文基于多客观的最佳的控制系统建议非线性的控制器和一个大阶段角度津贴设计方法的一种新类型。与建议方法，系统的性能变得比原来的系统的好。然后，雷达伺服系统的一个例子与大阶段角度津贴被设计多客观的最佳的设计方法。最后，性能基于计算机模拟证明多客观的最佳的系统比线性最佳的系统优异。

简介：AIM:Toassessthemechanismsofprotectiveactionbydifferentmildirritantsthroughmaintenanceofgastricmucosalintegrityandmodulationofmucosalnitricoxide(NO)inexperimentalgastritisrats.METHODS:Etcher200mL/Lethanol,50g/LNaGor0.3mol/LHClwaspretreatedtonormalor800mL/Lethanol-inducedacutegastritisSprague-Dawleyratsbeforeasubsequentchallengewith500mL/Lethanol.Bothmacroscopiclesionareasandhistologicaldamagescoresweredeterminedinthegastricmucosaofeachgroupofanimals.Besides,gastricmucosalactivitiesofNOsynthaseisoformsandofsuperoxidedismutase,alongwithmucosallevelofleukotriene(LT)C4weremeasured.RESULTS:Macroscopicmucosaldamageswereprotectedby200mL/Lethanoland50g/LNaCIingastritisrats.However,although200mL/Lethanolcouldprotectthesurfacelayersofmucosalcellsinnormalanimals(protectionattenuatedbyNG-nitro-L-argininemethylester),nocytoprotectionagainstdeeperhistologicaldamageswasfoundingastritisrats.Besides,inducibleNOsynthaseactivitywasincreasedinthemucosaofgastritisanimalsandunalteredbymildirritants.Nevertheless,theelevationinmucosalLTC4levelfollowing500mL/Lethanoladministrationandundergastritisconditionwassignificantlyreducedbypretreatmentofallthreemildirritantsinbothnormalandgastritisanimals.CONCLUSION:Thesefindingssuggestthattheaggravated500mL/Lethanol-evokedmucosaldamagesundergastritisconditioncouldbeduetoincreasedinducibleNOandLTC4productioninthegastricmucosa.Only200mL/Lethanolistruly'cytoprotective'atthesurfaceglandularlevelofnongastritismucosa.Furthermore,themacroscopicprotectionofthethreemildirritantsinvolvesreductionofLTC4levelinbothnormalandgastritismucosa,implicatingpreservationofthevasculature.

简介：ECGisanimportanttoolfortheprimarydiagnosisofheartdiseases,whichshowstheelectrophysiologyoftheheart.Inourmethod,asinglematernalabdominalECGsignalistakenasaninputsignalandthematernalP-QRS-Tcomplexesoforiginalsignalisaveragedandrepeatedandtakenasareferencesignal.LMSandRLSadaptivefiltersalgorithmsareapplied.TheresultsshowedthatthefetalECGshavebeensuccessfullydetected.TheaccuracyofDaisydatabasewasupto84%ofLMSand88%ofRLSwhilePhysioNetwasupto98%and96%forLMSandRLSrespectively.

简介：Thispaperwillpresentanapproximate/adaptivedynamicprogramming(ADP)algorithm,thatusestheideaofintegralreinforcementlearning(IRL),todetermineonlinetheNashequilibriumsolutionforthetwo-playerzerosumdifferentialgamewithlineardynamicsandinfinitehorizonquadraticcost.Thealgorithmisbuiltaroundaniterativemethodthathasbeendevelopedinthecontrolengineeringcommunityforsolvingthecontinuous-timegamealgebraicRiccatiequation(CT-GARE),whichunderliesthegameproblem.W...

简介：RecentlyY.Saadproposedaflexibleinner-outerpreconditionedGMRESalgorithmfornonsymmetriclinearsystems[4].Followingtheirideas,wesuggestanadaptivepreconditionedCGSmethod,calledCGS/GMRES(k),inwhichthepreconditionerisconstructedintheiterationstepofCGS,byseveralstepsofGMRES(k).Numericalexperimentsshowthattheresidualoftheouteriterationdecreasesrapidly.WealsofoundtheinterestingresidualbehaviourofGMRESfortheskewsymmetriclinearsystemAx=b,whichgivesaconvergenceresultforrestartedGMRES(k).Forconvenience,wediscussrealsystems.

简介：Anoveladaptive–impulsiveschemeisproposedforsynchronizingfractional-orderchaoticsystemswithoutthenecessityofknowingtheattractors’boundsinpriori.ThenonlinearfunctionsinthesesystemsaresupposedtosatisfylocalLipschitzconditionsbutwhichareestimatedwithadaptivelaws.Thenoveltyisthatthecombinationofadaptivecontrolandimpulsivecontroloffersacontrolstrategygatheringtheadvantagesofboth.Inordertoguaranteetheconvergenceisnolessthananexpectedexponentialrate,acombinedfeedbackstrengthdesigniscreatedsuchthatthesymmetricaxiscanshiftfreelyaccordingtotheupdatedtransientfeedbackstrength.AlloftheunknownLipschitzconstantsarealsoupdatedexponentiallyinthemeantimeofachievingsynchronization.Twodifferentfractional-orderchaoticsystemsareemployedtodemonstratetheeffectivenessofthenoveladaptive–impulsivecontrolscheme.

简介：一个有效解决方案在这篇文章被建议决定最好的可靠线路并且延长活动特定的网络(MANET)的一生。在建议解决方案，特定的按需的距离向量路由协议(AODV)的线路发现进程用推迟的一篇小说被修改了转播计划。它在每个节点包括无线连接质量，留下的电源能力，以及交通负担把AODV的最短的线路选择标准与真实网络地位相结合。模拟结果证明建议计划罐头显著地扩大网络一生并且比常规AODV协议提供更少包损失。

简介：Systemadministratordealswithmanyproblems,ascomputingenvironmentbecomesincreasinglycomplex.Systemswithanabilitytorecognizesystemstatesandadapttoresolvetheseproblemsofferasolution.Muchexperienceandknowledgearerequiredtobuildaself-adaptivesystem.Self-adaptivesystemshaveinherentdifficulties.Thispaperproposesatechniquethatautomaticallygeneratesthecodefortheself-adaptivesystem.Thusthesystemiseasiertobuild.Self-adaptivesystemsofpreviousresearchrequiredhighsystemresourceusage.Incorrectoperationcouldbeinvokedbyexternalfactorssuchasviruses.Weproposeanimprovedself-adaptivesystemapproachandapplyittovideoconferencesystemandrobotsystem.Wecomparedthelinesofcode,thenumberofclassescreatedbythedevelopers.Wehaveconfirmedthisenhancedapproachtobeeffectiveinreducingthesedevelopmentmetrics.

简介：AccordingtotheprincipleofpolarizationimagingandtherelationbetweenStokesparametersandthedegreeoflinearpolarization,therearemuchredundantandcomplementaryinformationinpolarizedimages.Sinceman-madeobjectsandnaturalobjectscanbeeasilydistinguishedinimagesofdegreeoflinearpolarizationandimagesofStokesparameterscontainrichdetailedinformationofthescene,thecluttersintheimagescanberemovedefficientlywhilethedetailedinformationcanbemaintainedbycombiningtheseimages.Analgorithmofadaptivepolarizationimagefusionbasedonregionalenergydynamicweightedaverageisproposedinthispapertocombinetheseimages.Throughanexperimentandsimulations,mostcluttersareremovedbythisalgorithm.Thefusionmethodisusedfordifferentlightconditionsinsimulation,andtheinfluenceoflightingconditionsonthefusionresultsisanalyzed.

简介：Inordertoimprovetheperformanceofsupportvectormachine(SVM)applicationsinthefieldofcreditriskevaluation,anadaptiveLqSVMmodelwithGausskernel(ALqG-SVM)isproposedtoevaluatecreditrisks.Thenon-adaptivepenaltyoftheobjectfunctionisextendedto(0,2]toincreaseclassificationaccuracy.Tofurtherimprovethegeneralizationperformanceoftheproposedmodel,theGausskernelisintroduced,thusthenon-linearclassificationproblemcanbelinearlyseparatedinhigherdimensio...

简介：Inmanyreal-worldapplicationsofevolutionaryalgorithms,thefitnessofanindividualrequiresaquantitativemeasure.Thispaperproposesaself-adaptivelinearevolutionaryalgorithm(ALEA)inwhichweintroduceanovelstrategyforevaluatingindividual'srelativestrengthsandweaknesses.Basedonthisstrategy,searchingspaceofconstrainedoptimizationproblemswithhighdimensionsfordesignvariablesiscompressedintotwo-dimensionalperformancespaceinwhichitispossibletoquicklyidentify'good'individualsoftheperformanceforamultiobjectiveoptimizationapplication,regardlessoforiginalspacecomplexity.Thisisconsideredasourmaincontribution.Inaddition,theproposednewevolutionaryalgorithmcombinestwobasicoperatorswithmodificationinreproductionphase,namely,crossoverandmutation.Simulationresultsoveracomprehensivesetofbenchmarkfunctionsshowthattheproposedstrategyisfeasibleandeffective,andprovidesgoodperformanceintermsofuniformityanddiversityofsolutions.

简介：Atpresent,themajordrawbackformobilephonesistheissueofpowerconsumption.Asoneofthealternativestodecreasethepowerconsumptionofstandard,power-hungrylocation-basedservicesusuallyrequiretheknowledgeofhowindividualphonefeaturesconsumepower.Atypicalphonefeatureisthattheapplicationsrelatedtomultimediastreamingutilizemorepowerwhilereceiving,processing,anddisplayingthemultimediacontents,thuscontributingtotheincreasedpowerconsumption.Thereisagrowingconcernthatcurrentbatterymoduleshavelimitedcapabilityinfulfillingthelong-termenergyneedfortheprogressonthemobilephonebecauseofincreasingpowerconsumptionduringmultimediastreamingprocesses.Consideringthis,inthispaper,weprovideanofflinemeaningsleep-modemethodtocomputetheminimumpowerconsumptioncomparingwiththepower-onsolutiontosavepowerbyimplementingenergyrateadaptation(RA)mechanismbasedonmobileexcessenergylevelpurposetosavebatterypoweruse.OursimulationresultsshowthatourRAmethodpreservesefficientpowerwhileachievingbetterthroughputcomparedwiththemechanismwithoutrateadaptation(WRA).

简介：

简介：AT-InSAR(AlongTrackInterferometricSAR)isatechniquetodetectslow-movingtargets.However,thedetectionperformanceisgreatlyinfluencedbynoiseandclutter.Inthispaper,theinfluenceofnoiseandclutteronthedetectingperformanceisanalyzed.Bysimulatingdifferentbackgroundclutterandnoise,theperformancesofthephasethresholdanddual-thresholdmethodsarediscussedindetail,andthentheadaptive-thresholdmethodisproposedwhichcangreatlyimprovethedetectionperformance.

简介：Theadaptivecriticheuristichasbeenapopularalgorithminreinforcementlearning(RL)andapproximatedynamicprogramming(ADP)alike.ItisoneofthefirstRLandADPalgorithms.RLandADPalgorithmsareparticularlyusefulforsolvingMarkovdecisionprocesses(MDPs)thatsufferfromthecursesofdimensionalityandmodeling.Manyreal-worldproblems,however,tendtobesemi-Markovdecisionprocesses(SMDPs)inwhichthetimespentineachtransitionoftheunderlyingMarkovchainsisitselfarandomvariab...