简介:Autocorrelationisprevalentincontinuousproductionprocesses,suchastheprocessesinthechemicalandpharmaceuticalindustries.Withthedevelopmentofmeasurementtechnologyanddataacquisitiontechnology,samplingfrequencyisgettinghigherandtheexistenceofautocorrelationcannotbeignored.Thispaperanalyzesfiveestimationschemesofprocesscapabilityforautocorrelateddata.Comparisonsamongtheseschemesarediscussedforsmallsampleandlargesample.Inconclusion,thispapergivesaprocedureofprocesscapabilityanalysisforautocorrelateddata.
简介:分享的一个公开可证实的秘密(PVSS)计划是有任何人能验证份额的特殊性质的一个可证实的秘密分享计划他们是否由一个交易者是正确地分布式的。PVSS在象电子投票,有可撤回的匿名的支付系统,和关键附带条件契约那样的许多应用程序起一个重要作用。直到现在,所有PVSS计划基于传统的公共密钥的系统。最近,基于对的密码学从密码的研究人员收到了许多注意。许多基于对的计划和协议被建议了。然而,用双线性的配对的PVSS计划都没被建议。这份报纸论述第一个基于对的PVSS计划。在随机的神谕模型并且在双线性的Diffie-Hellman假设下面,作者证明建议计划是一个安全PVSS计划。
简介:ThemaineffectfactorofBeijingurbanpublictransportationticketpricesystemfoundationisanalyzedbyapplyingsystemanalysismethod.Feasibleschemeofpublictransportationticketpricesyscemisproposed.3implementedschemeofpublictransportationticketpricesystemisvaluedbyapplyingfuzzymethod.
简介:Duetothelongoperationcycleofmaritimetransportationandfrequentfluctuationsofthebunkerfuelprice,therefuelingexpenditureofacharteredshipatdifferenttimeorportsofcallmakesignificantdifference.Fromtheperspectiveofshippingcompany,anoptimalsetofrefuelingschemesforashipfleetoperatingondifferentvoyagecharterroutesisanimportantdecision.Toaddressthisissue,thispaperpresentsanapproachtooptimizetherefuelingschemeandtheshipdeploymentsimultaneouslywithconsideringthetrendoffuelpricefluctuations.Firstly,anARMAmodelisappliedtoforecastatimeserialsofthefuelprices.Thenamixed-integernonlinearprogrammingmodelisproposedtomaximizetotaloperatingprofitoftheshippingcompany.Finally,acasestudyonachartercompanywiththreebulkcarriersandthreevoyagecharterroutesisconducted.Theresultsshowthattheoptimalsolutionsavesthecostof437,900USDcomparedwiththetraditionalrefuelingscheme,andverifytherationalityandvalidityofthemodel.
简介:不可思议地使不安的传送对流散开方程的Acoupled系统被考虑。每个方程的领先的条款被一个小积极参数乘,但是这些参数可以有不同大小。系统的答案有重叠并且交往的边界层。这些层的结构被分析,并且这导致是平常的Shishkin网孔的变体的一个piecewise制服网孔的构造。在一个迎风的差别计划被证明几乎一阶精确的这个网孔上,一致地在两个小参数。我们在场数字实验到的结果证实我们的理论结果。