简介：ThemixedH2/H∞guaranteedcostcontrolproblemviastatefeedbackcontrollawsisconsideredinthispaperforlinearsystemswithnorm-boundedparameteruncertainty.Basedonthelinearmatrixinequality(LMI)approach,sufficientconditionsarederivedfortheexistenceofguaranteedcostcontrollerswhihcguaranteenotonlyaprespecifiedH∞disturbanceattenuationlevelononecontrolledoutputforalladmissibleparameteruncertainties,butalsotheworst-caseH2performanceindexontheothercontrolledoutputtobenomorethanaspecifiedbound.Furthermore,aconvexoptimizationproblemisformulatedtodesignanoptimalH2/H∞guaranteedcostcontroller.

简介：TheemergenceofB2Belectronicmarketshasgreatlychangedtherelativebargainingpowerofbuyersandsellers.Westudytheequilibriummarketstructureinabuyer’smarket.Wefindthatbuyer-controlledB2BmarketsandneutralB2Bmarketshavedifferentequilibriumstructures,andtheemergenceofB2Bmarketswillincreasesocialwelfare,butitseffectonbuyersandsellerswillbedifferent:B2Bmarketsincreasetheconsumersurplusoftheendmarket,buttheireffectsonbuyerandsellerprofitsaremoderatedbytherelativebargainingpowerofbuyersandsellers.TheprofitsofthesidewithmuchweakerbargainingpowerwilldecreaseduetotheintroductionofB2Bmarkets.

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简介：在珍视的模糊集合被考虑的间隔的模糊间隔值的伪巧合的概念。事实上，这个概念是在一个模糊集合的一个模糊的点的伪巧合的一个概括概念。由使用这个新概念，作者定义间隔的观点珍视半的模糊h理想包围的()；学习他们的相关性质。另外，作者也与阀值扩大模糊亚群的概念到珍视的间隔的概念模糊与在半戒指的阀值h理想。

简介：Thispaperconstructedportfoliosaccordingtothegrowthratesandtheirstabilityoffirm'stotalstockholders'equitypershareandnetincomepershare,usingallthefirms'informationofShanghaiA-sharemarket.Wefoundthatthemarketexhibitssomeoverreactiontothegrowthraieoffirm'snetincomepershare,andisn'tsensitivetothestabilityoffirm'sgrowthrates.

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简介：ThemainpurposeofthispaperistostudyaproblemrelatedtoGolomb'sconjectures,andgiveaninterestingasymptoticformula.

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简介：ＡＮＥＦＦＩＣＩＮＴＩＭＰＬＥＭＥＮＴＡＴＩＯＮＯＦＭＥＲＲＩＬＬ＇ＳＭＥＴＨＯＤＹＡＮＧＢｉｎｇ（ＤｅｐａｒｔｍｅｎｔｏｆＭａｎａｇｅｍｅｎｔＥｎｇｉｎｅｅｒｉｎｇＨａｒｂｉｎＥｎｇｉｎｅｅｒｉｎｇＵｎｉｖｅｒｓｉｔｙＨａｒｂｉｎ１５０００１）Ａｂ...

简介：Let■Ω=Γ=Γ1+Γ2（seeFig.1）,meas（Γ1）>0,V={v|v∈H1（Ω）,v|Γ1=0},andV0={ω|Δω=hinΩ,ω|Γ=0,（?）h∈V}.LetV0′=thedualspaceofV0,a（u,v）=∫Ω▽u·▽Δvdx,andF（v）=∫Ωfvdx+∫Γ2g1Δvds-∫Γg2（?）ds,f∈V′0,g1∈H-（1/2）（Γ2）,g2∈H-（3/2）（Γ）.Considerthevariationalproblem:findu∈Vsuchthata（u,v）=F（v）,（?）v∈V0.（1）UsingTartar’slemma,weprovethatforproblem（1）thereexistsauniqueu∈Vsatisfying■

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简介：ForaclassofSISOnonlinearcontrolsystemswithparameteruncertaintyanalmostdisturbancedecouplingproblemwithstabilityisdefinedandinvestigated.Backsteppingtechniqueprovidesapractcaldesignmethodofcontroller,underwhichtheL2gainfromthedisturbancetothecontrolledoutputcanbearbitrarilysmallsubjecttononlinearuncertaintiesandtheclose-loopsystemisinternallyasymptoticallystable.

简介：Fivekindsofconesareintroduced,whichareusedtoestablishtheconstraintsqualifications,underwhichthegeneralizedKuhn-Tuckernecessaryconditionsaredevelopedforaclassofgeneralized(h,φ)-differentiablesingle-objectiveandmultiobjectiveprogrammingproblemsbyusingMotzkin'salternativetheoremandBen-Talgeneralizedalgebraicoperations.

简介：ThispaperdealswithH∞controlofa5th-ordermodelofsynchronousgenerators.First,byusingthemethodofexactlinearization,wetransformthe5th-ordermodelintoalinearone.Thenweassignthepoleofthelinearizedmodelintheopenlefthalfplane.Finally,weapplythedesignmethodoflinearH∞controltogetastatefeedbackcontroller.

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简介：Inthiseraofadata-drivensociety,usefuldata(BigData)isoftenunintentionallyignoredduetolackofconvenienttoolsandexpensivesoftware.Forexample,weblogfilescanbeusedtoidentifyexplicitinformationofbrowsingpatternswhenusersaccesswebsites.Somehiddeninformation,however,cannotbedirectlyderivedfromthelogfiles.Wemayneedexternalresourcestodiscovermoreknowledgefrombrowsingpatterns.Thepurposeofthisstudyistoinvestigatetheapplicationofwebusageminingbasedonweblogfiles.Theoutcomeofthisstudysetsfurtherdirectionsofthisinvestigationonwhatandhowimplicitinformationembeddedinlogfilescanbeefficientlyandeffectivelyextracted.Furtherworkinvolvescombiningtheuseofsocialmediadatatoimprovebusinessdecisionquality.

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简介：与pointwise为连续时间的系统过滤的H的问题变化时间的延期在这份报纸被调查。由在Krein空间使用革新分析，为一个H过滤器的存在的一个必要、足够的条件在二个方法被导出：一个人是部分微分方程途径，其它是重新组织的革新分析途径。前者把一个答案给与边界条件以一个部分微分方程的答案过滤问题的建议H。以后把一个分析答案给以Riccati和矩阵的答案过滤问题的建议H微分方程。

简介：庇护重量枚举符，完全的重量在戒指R=F上为线性代码枚举符2+uF2+vF2被定义并且从R的灰色的地图n到F23n被构造。由证明灰色在R上自我双的代码想象的事实是在F上的自我双的代码2,并且基于为Hamming的MacWilliams身份，重量在F上线性代码枚举符2,MacWilliams为李重量的身份在R上线性代码枚举符被给。进一步由介绍特殊可变t，为完全的重量的MacWilliams身份在R上线性代码枚举符被获得。最后，说明二MacWilliams身份的正确性和功能的一个例子被提供。