简介：InthispaperwereportasparsetruncatedNewtonalgorithmforhandlinglarge-scalesimpleboundnonlinearconstrainedminimixationproblem.ThetruncatedNewtonmethodisusedtoupdatethevariableswithindicesoutsideoftheactiveset,whiletheprojectedgradientmethodisusedtoupdatetheactivevariables.Ateachiterativelevel,thesearchdirectionconsistsofthreeparts,oneofwhichisasubspacetruncatedNewtondirection,theothertwoaresubspacegradientandmodifiedgradientdirections.ThesubspacetruncatedNewtondirectionisobtainedbysolvingasparsesystemoflinearequations.Theglobalconvergenceandquadraticconvergencerateofthealgorithmareprovedandsomenumericaltestsaregiven.

简介：在这篇论文，我们描述一个方法由顺序的凸的编程(SCP)解决大规模结构的优化问题。一个预言者修正者内部点方法被使用解决严格地凸的潜水艇问题。SCP算法和拓扑学优化途径被介绍。特别，解决方程的某些线性系统的不同策略被分析。数字结果被介绍为解决拓扑学优化问题显示出建议方法的效率并且比较不同变体。

简介：Sincethe1990s,theYellowRiverstreamhasbeentemporarilyinterruptedforseveralyears,whichaffectsthedevelopmentofsociety,theeconomyandhumanlife,limitstheeconomicpotentialofthedrainageareas,andespeciallycausesgreatharmtoregionsonthelowerreaches.Basedontheanalysisoftherelationshipbetweenthedevelopmentofsocietyandeconomyandwaterscarcity,theauthorthinksitisnecessarytooptimizeandadjusttheindustrialstructurethathasextravagantlyconsumedenormousamountsofwater,andtodevelopecologicalagriculture,industryandtourismwhicharebalancedwiththeecologicalenvironment.Finally,theauthorputsforwardseveralpiecesofadviceandcountermeasuresabouthowtobuildtheeconomicsystemsbywhichwatercanbeusedeconomically.

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简介：为由ccpA异种杆菌的核黄素生产的氮来源要求敏锐24A1/pMX45用线性回归被优化。最佳的中等部件考虑作为碳来源包括了8%葡萄糖，2%酵母粉末，0.05%MgSO_4吗？氮来源的7H_2O，和四种类型：0.1%酵母摘录，2%大豆粉末，1%玉米原生质，并且0.2%(NH_4)在饮料烧瓶的_2HPO_4测试。预兆的椭圆体被用于为核黄素生产和葡萄糖消费在最佳的层次下面决定反应价值。氮来源的四种类型的最佳的集中能补救铵吸收变节ofccpA异种。在最佳的条件下面，到超过5.0g/Land8%葡萄糖的核黄素收益增加能在60h以后完全被消费。

简介：ThecharacteristicsofradiationanddryingpropertiesofTiO2bulbinthefixedbedwithinfraredradiationhavebeenstudiedinthispaper,andtheexperimentsondryingdynamicshasbeenanalysedalso.Theoptimizationofheatandmasstransferdatahasbeendetermined,whichcouldprovidethescientificbasisengineeringdesign.

简介：Aclassoftrustregionmethodstorsolvinglinearinequalityconstrainedproblemsispropo6edinthispaper.Itisshownthatthealgorithmisofglobalconvergence.Thealgorithmusesaversionofthetwo-sldedprojectionandthestrategyoftheunconstrainedtrustregionmethods.Itkeepsthegoodconvergencepropertiesoftheunconstrainedcaseandhasthemeritsoftheprojectionmethod.Insomesense,ouralgorithmcanberegardedasanextensionandimprovementoftheprojectedtypealgorithm.

简介：ThispaperinvestigatestheuntraditionalapproachofcontentionresolutioninWavelengthDivisionMultiplexing(WDM)OpticalPacketSwitching(OPS).Themoststrikingcharacteristicsofthedevelopedswitcharchitectureare:(1)ContentionresolutionisachievedbyacombinedsharingofFiberDelay-Lines(FDLs)andTunableOpticalWavelengthConverters(TOWCs);(2)FDLsarearrangedinnon-degenerateform,i.e.,non-uniformdistributionofthedelaylines;(3)TOWCsjustcanperformwavelengthconversioninpartialcontinuouswavelengthchannels,i.e.,sparsewavelengthconversion.TheconcreteconfigurationsofFDLsandTOWCsaredescribedandanalyzedundernon-burstyandburstytrafficscenarios.Simulationresultsdemonstratethatforaprefixedpacketlossprobabilityconstraint,e.g.,10-6,thedevelopedarchitectureprovidesadifferentpointofviewinOPSdesign.Thatis,combinedsharingofFDLsandTOWCscan,effectively,obtainagoodtradeoffbetweentheswitchsizeandthecost,andTOWCswhichareachievedinsparseformcanalsodecreasetheimplementingcomplexity.

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简介：Basedonsignalspaceconcepts,atransmissionerrorcodeperformanceforMPSK,squareMQAMandstarMQAMmodulationschemesontheAGWNchannelisanalyzed.ThecorrespondingBERformulasandcomputeraidednumericresultsarealsogiven.ThereforeitprovidesatheoreticalbasisforchoosingMQAMmodulationschemesinmobilecommunications.

简介：Themixedl1/H2optimizationproblemforMIMO(multipleinput-multipleoutput)discrete-timesystemsisconsidered.Thisproblemisformulatedasminimizingthel1-normofaclosed-looptransfermatrixwhilemaintainingtheH2-normofanotherclosed-looptransfermatrixatprescribedlevel.ThecontinuitypropertyoftheoptimalvalueinrespecttochangesintheH2-normconstraintisstudied.Theexistenceoftheoptimalsolutionsofmixedll/H2problemisproved.Becausethesolutionofthemixedl1/H2problemisbasedonthescaled-Qmethod,itavoidsthezerointerpolationdifficulties.Theconvergentupperandlowerboundscanbeobtainedbysolvingasequenceoffinitedimensionalnonlinearprogrammingforwhichmanyefficientnumericaloptimizationalgorithmsexist.

简介：InthispaperweprovethataclassoftrustregionmethodspresentedinpartⅠissuperlinearlyconvergent.Numericaltestsarereportedthereafter.Resultsbysolvingasetoftypicalproblemsselectedfromliteratureshavedemonstratedthatouralgorithmiseffective.

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