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简介：Macro-trafficmodelisaneffectivetoolforsupportingtrafficprogrammertoThisarticleisbasedonthesoftwareproductsVISEM(demandmodel)andVISUM(supplymodel)fromPTVCompanyofGermany,andstudiesmacro-trafficmodelonthebasisofconsideringthattrafficsystemisaninteractivesystemofbetweenasupplysystemandademandsystem.

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简介：ThispaperconductsanempiricalresearchonthesystemrisksoftheShenzhenStockMarketusingCapitalAssetPricingModel.ThetypicalcompositionstocksonShenzhenStockMarketin1998aretakenassamples.

简介：这篇论文在一所突尼斯的大学里在一个机构处理功课Timetabling问题。我们介绍一个启发式的过程为任何节的每个分部的不同的组进行的所有讲课和教程构造一张可行时间表。我们用所有特定的难、软的限制的一张表描述timetabling问题。我们分别地用相应于讲课和教程的二进制变量的二个集合作为一套线性限制提出这个问题。这启发式在突尼斯为经济的学院和斯法克斯的管理科学的一个分部与真实数据被说明，并且产生时间表与手工地产生的那些相比。另一完整的节的结果证实了好质量求婚启发式什么时候与手工制作的答案相比。

简介：Memberenterprisesengagedinavirtualenterprisearepronetoshirkbothproductiveeffortsandrisksbecausetheireffortsareunobservabletoanyothermemberenterprises.Howtodesignarevenuesharingcontracttopreventthememberenterprisesfromfreeridingisoneofthemostimportantissuestobeconsideredtocutdownrisksthatvirtualenterprisesmaymeet.Basedontheworkofprofitsharinginpartnershipsandtheresearchonrevenuesharinginsupplychainsandjointventures,weproposeamodeloftherevenuesharingcontractaimedatcoordinatingavirtualenterprisecomposedofnrisk-aversememberenterpriseswhereeverymemberenterpriseperformsdifferenttasksandcontributesdistinctcoreresources.Wecharacterizetheoptimalproductiveefforts,risk-takenandincentiveintensityintherevenuesharingcontract,andindicatethatimprovingtheevaluationprecisionofproductiveeffortsandselectingweaklyrisk-aversememberenterpriseswithclosepowerarethekeyfactorstothesuccessofVEs.

简介：Thebasictheoryandmethodofthecombinationforecastingareintroduced.Basedontheactualdatainanairline,thecasestudywaspresented.Inthecasestudy,twobasicforecastingmodelsaresetup,whicharethetime-regressionplusseasonalfactormodelandthelogarithmadditiveWintersmodel.Andtwocombinationmodelsareestablishedwiththebasicmodels,whicharetheoptimalcombinationmodelandtheregressivecombinationmodel.Theresultsofthestudyareguidabletothepractice.

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简介：TourismSatelliteAccount(TSA)isthenewestmethodformeasuringtheimpactoftourismoneconomyintheworld.TherehasbeengloballyabigtrendofdevelopmentofTSAsafteritwasapprovedasainternationalstandardbyUnitedNationsStatisticalCommission(UNSC)inMarchof2000.ThisresearchisafirstpilotexerciseofTSAmethodinChina.Theresultoftheresearchhasdrawnmuchattentionfromthetourismadministrationsandstatisticsofficesatnationallevelandthelocallevels.

简介：Purchaseprocessisanimportantpartintheprocessofrunninganenterprise.Forreengineeringtheprocessof'enterprise,raisebusinessefficiencyofenterprise,makeenterprisecompetitiveamongcomplicatedandchangeablemarketenvironment.Usethemethodofplanningtoevaluatethetechnologymodelingandmethodtosetupevaluationindex,basedonthebasicprinciplebusinessprocessreengineering,studiedthemethodsofmodelingandevaluatingofthereengineeringofthepurchaseprocess.Giventheintactmethodofmodelingprocess.Givethemathematicsexpressmethodandfigureexpressmethodoftheprocess,proposeusingPTreducingratetoevaluatetheeffectoftheprocessreengineer,andhasanalysedthreekindsofsituationsthataffectthereducingrateofPT.

简介：BasedondifferentequationofCobb-Douglasproductionfunction,themodelofregulatingregionaleconomyonthemultiobjectiveoptimizationofefficiencyandequityissetup,withthespatialdistributionstrategyofcapitalandlabourforceasthecontrollingvariable.Twobasicconclusionsdrawnfromthemodelarestrictlydemonstrated:①Acountry＇seconomicdevelopmentisdecidedbytheconsistencybetweentheregionaldistributivestrategyofincrementinvestmentandtheregionaldifferenceinmarginalinvestmentrevenue.②Thecoupletargetsofefficiencyandequityarestrictlyinconflictwitheachother,ifandonlyifthemarginalinvestmentrevenueinthedevelopedregionsishigherthanintheundeveloped,otherwisethetargetsareconsistent.

简介：Accurateandeffectiveassessmentofstrategicalternativesofanorganizationdirectlyaffectsthedecision-makingandexecutionofitsdevelopmentstrategy.Inevaluationofstrategicalternatives,relevantelementsfrombothinternalandexternalenvironmentsofanorganizationmustbeconsidered.Inthispaperweusestrategicassessmentmodeltoevaluatestrategicalternativesofanair-conditioningcompany.Strategicobjectivesandalternativesofthecompanyaredevelopedthroughanalysisofthecompetitiveenvironment,keycompetitorsandinternalconditions.Theenvironmentfactorsareclassifiedintointernal,task,andgeneralopportunitiesandthreats.Analyticalhierarchyprocess,subjectiveprobabilities,entropyconcept,andutilitytheoryareusedtoenhancedecision-maker＇sabilityinevaluatingstrategicalternatives.Theevaluationresultsshowthatthemosteffectivestrategicalternativeforthecompanyistoreducetypesofproducts,concentrateitseffortonproducingwindow-typeandcupboard-typeair-conditioners,enlargetheproductionscale,andpre-emptthemarket.Thecompanyhasmadegreatprogressbyimplementingthisalternative.WeconcludethatSAMisanappropriatetoolforevaluatingstrategicalternatives.

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简介：Thereal-timedispatchingmodelonbussystemisstudiedinthisarticle.Realtimedispatchingcanresumetheplannedschedulequickly,andthentoensurethereliabilityofthepublictransportserviceandtowellraisetheservicequality.

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