简介：我们考虑被随机的震动和生产进程本身败坏的一个生产系统的预防维护。恶化的度由分离、有限的状态被建模。震动根据一个泊松过程到达并且败坏由随机的数量的系统。每当它生产一个项目时，系统可以败坏。系统连续地被监视并且修理系统状态是否在以上是为维护的预定水平。我们由于安装，操作，和修理从产品和费用分析一生，产品数量，平均支出，和平均利润考虑收入。假定系统参数和费用的结构，用数字例子，我们在平均利润和最大化平均利润的最佳的维护水平上调查生产和吃惊到达的影响。建议模型是适用的，转弯，打，并且钻例如，机器由于生产在穿的生产任务压过程，milling。

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简介：Inthispaper,thejointproductionandrecyclingproblemisinvestigatedforahybridmanufacturingandremanufacturingsystemwherebrand-newproductsareproducedinthemanufacturingplantandrecycledproductsareremanufacturedintoas-newproductsintheremanufacturingfacility.Boththebrand-newproductsandremanufacturedproductsareusedtosatisfycustomerdemands.Returnsofusedproductsthatarerecycledfromcustomersareassumedtobestochasticandnonlinearlyprice-dependent.Amathematicalmodelisproposedtomaximizetheoverallprofitofthesystemthroughsimultaneouslyoptimizingtheproductionandrecyclingdecisions,subjecttotwocapacityconstraints?themanufacturingcapacityandtheremanufacturingcapacity.BasedonLagrangianrelaxationmethod,subgradientalgorithmandheuristicalgorithm,asolutionapproachisdevelopedtosolvetheproblem.Arepresentativeexampleispresentedtoillustratethesystem,andmanagerialanalysisindicatesthattheuncertaintiesindemandandreturnhavemuchinfluenceontheproductionandrecyclingpolicy.Inaddition,twentyrandomlyproducedexamplesaresolved,andcomputationalresultsshowthatthesolutionapproachcanobtainverygoodsolutionsforallexamplesinreasonabletime.

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简介：Intheanalysisoneconomicgrowthfactors,calculatingthecontributionrateofinfluencingfactortoeconomicgrowthusingtheCESproductionfunctionmodelisacommonandimportantresearchfield.TheCESproductionfunctionmodelhasavarietyofforms,andthesuperpositionCESproductionfunctionmodelproposedinthepaperisanewmodel.Withregardtothemodel’sparameterestimation,thepaperproposesamodifiedparticleswarmoptimizationwhichhasafastconvergencerateandahighprecision.Withregardtothecalculationoffactorcontributionrate,thepaperoffersanewscientificcalculationmethodwiththesuperpositionCESproductionfunctionmodel.Atlast,thepapermakesanempiricalanalysisonthecontributionrateofChineseeconomicgrowthfactorsandtheresultobtainedconsistswiththereality.

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简介：数据包封分析(DEA)是为与多重输入和产量测量决策单位(DMU)的相对效率的一个有效非参量的方法。处于许多真实状况，DMU的内部结构是二阶段的网络进程，分享的输入在两个阶段生产的阶段和普通产量使用了。例如，医院有二阶段的网络结构。舞台1消费象产生象医药记录，洗衣店和家务那样的产量的信息技术系统，植物，设备和主管人员那样的资源。舞台2消费舞台1使用的资源(命名分享的输入)和舞台1产生的产量(命名中间的措施)的一样的集合提供耐心的服务。而且，一些例如，输出耐心的满足度，被二个单个阶段一起产生(命名分享的产量)。因为一些分享的输入和产量努力被分开并且分配到各单个的舞台，它需要为处于如此的问题评估二阶段的网络进程的性能开发二阶段的DEA方法。这份报纸扩大集中的模型测量二阶段的过程的DEA效率与非，splittable分享了输入和产量。一条加权的添加剂途径被用来联合二个单个阶段。而且，添加剂效率分解模型被开发同时评估最大并且为单个阶段的最小的可完成的效率。最后，中国建设的分支在安徽省存的17城市的一个例子被采用说明建议途径。

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简介：Withthedeepenofmarketcompetition,productpricingandproductiondecisionprobleminmanyfirmshavebecomemoreandmoreimportant.Abilevelmodelisproposedtodescribethepricingandproductiondecisionswithfuzzydemandandfuzzycostparameters.Theupperlevelistodeterminetheoptimalpriceandproductionquantitywithcapacityconstraints.Usingthisinformation,thelowerlevelproblemtriestostructurearesponse(thedistributionpatternofcustomers(ormarkets))thatwillsatisfyhisdemandatminimumcost.AndaftertransformingthefuzzynumbersintothecrispvaluebyGradedMeanIntegrationRepresentationmethod,thesolutionalgorithmbasedondifferencemethodisgiven.Finally,theapplicationofthemodelanditsalgorithmareillustratedwithasimpleexample.

简介：Thispaperdiscussesintegratedproductandproductiondatamanagementforassembly-to-orderproduction,whichischaracterizedbyalargenumberofproductandprocessvarieties.Adatastructure,calledBill-of-Materials-and-Assemblies(BOMA),isproposedforthepurposeofunifyingBOMandassemblyroutingdatainordertoaccommodateawiderangeofproductvariabilityandproductionvariations.AgenericBOMAconceptisputforwardtodealwithvarietyeffectively.AprototypesystemoftheproposedgenericBOMAisimplementedusingobject-orientedmodeling.

简介：ThispaperdealswithHeniggloballyefficiencyinvectoroptimizationinvolvinggeneralizedcone-preinvexset-valuedmapping.Somepropertiesofgeneralizedcone-preinvexset-valuedmaparederived.ItalsodisclosetheclosedrelationshipsbetweenHeniggloballyefficiencyofgeneralizedconepreinvexset-valuedoptimizationproblemandHeniggloballyefficiencyofakindofvectorvariationalinequality.

简介：Acommonfeatureofpreviousstudiesabouttheapplicationofdataenvelopmentanalysis(DEA)todetermineenvironmentalandeconomicefficienciesisthatthetwowereanalyzedinseparatemodelsorframeworks.Thepurposeofthispaperistoanalyzetheeconomicefficiencyandenvironmentalefficiencywithasinglemodel.ThispaperproposesanintegratedDEAmodel,basedonamodificationofthedirectionaldistancefunction,whichallowsustodecomposetheeco-efficiency(EE)intotheeconomicefficiency(ECE)andenvironmentalefficiency(ENE).TheECEcharacterizestheabilityofgainingeconomicbenefitswhiletheENEcharacterizestheabilitytocontrolpollutantemissionsinproductionactivities.IdentificationofECEandENEcanhelpdecisionmakersofdifferentregionsdetectwhatkindoffactor(economicinefficiencyorenvironmentalinefficiency)isthemainsourceofeco-inefficiency.ThiscanhelpdecisionmakersmoretargetedtoimproveEE.Toillustratethefeasibilityofourapproach,acasestudyof30regionsinChinaispresented.Theempiricalresultsshowthatalmostallregionshaveveryhigheconomicefficiencies.Theenvironmentalinefficiencyisthemainsourceofeco-inefficiency.Thedifferencesofenvironmentalefficienciesleadtothedifferencesofeco-efficienciesintheeast,centralandwestareas,whiletheeconomicefficienciesdonothavesignificantdifferencesamongtheseareas.Theeconomicefficienciesshowedanopposite'V'shapeandtheenvironmentalefficienciesshowedadecreasingtrendduringtheperiod2010–2014.

简介：Inthispaper,regulatoryandoptimumprogrammingmodelhasbeenadopted.Consideringthecostsofemissionreduction,supervisionandpenalty,wewentallouttoanalyzetheoptimaldecisionofcostefficiencyofregulatorswhenimplementingthesethreepolicyinstruments:carbonemissionstandards,carbonemissiontradingpermissions,andcarbontaxesaswell.Itsresulthasindicated:Instrictaccordancewithcontroltargetoftotalcarbonemissions,regulatorsarewillingtorendersocialandeconomiccostabletoachievethegoalofoptimalcostefficiencybyregulatingcarbonemissionstandardsandsupervisingmarginalcostcausedbyvariationsintheprobability;fortunately,undertheconditionsoflowsupervisorycostandcertaincriteriawhichismet,theimplementationofcarbonemissiontradingpermissionscouldprovidesocialandeconomiccostwithopportunitiestorealizethatobjective;throughcomparativeanalysis,carbonemissiontradingpermissionshavetheadvantagesofhigherefficiencythancarbonemissionstandardsonthepremiseofincompleteinformation.Duringtheimplementationofcarbontaxesstrategy,whenthereexistsuncertaintyinformationintheenterprisesreductionbehaviors,theconditionwhichenterprisescanfullycomplywithisthetaxratelevelisnothigherthanmarginalpenaltyfunction;thetaxratelevelofenterprisesperfectcomplianceoughtnottobelowerthanthedivisionofmarginalpenaltycostandmarginalsupervisorycost.Theoptimalstrategyofenterprisesimperfectcomplianceisthatregulatorsvaryingthemarginalcostofemissionstandardsisequaltovaryingthatofsupervisoryprobability.

简介：Thispaperproposesagraphical-basedmethodologytoevaluatetheperformanceofamanufacturingsystemintermsofnetworkmodel.Wefocusonamanufacturingsystemwhichconsistsofmultipledistinctproductionlines.Atransformationtechniqueisdevelopedtobuildthemanufacturingsystemasamanufacturingnetwork.Insuchamanufacturingnetwork,thecapacityofeachmachineismultistateduetofailure,partialfailure,ormaintenance.Thus,thismanufacturingnetworkisalsoregardedasamultistatenetwork.Weevaluatetheprobabilitythatthemanufacturingnetworkcanmeetagivendemand,wheretheprobabilityisreferredtoasthesystemreliability.Asimplealgorithmintegratingdecompositiontechniqueisproposedtogeneratetheminimalcapacityvectorsthatmachinesshouldprovidetoeventuallysatisfydemand.Thesystemreliabilityisderivedintermsofsuchcapacityvectorsafterwards.ApracticalapplicationinthecontextofICcardmanufacturingsystemisutilizedtodemonstratetheperformanceevaluationprocedure.

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