简介:Inthispaper,simultaneousuniformapproximationandmeanconvergenceofquasi-HermiteinterpolationanditsderivativebasedonthezerosofJacobipolynomialsareconsideredseparately.Thedegreesofthecorrespondingapproximationsarerespectivelygivenalso.Someknownresultsareimprovedaudextended.
简介:Thegravityp-medianmodelisanimportantimprovementtothewidely-usedp-medianmodel.However,thereisstilladebateonitsvalidityinempiricalapplications.Previousstudiesevendoubtthesignificanceofthegravityp-medianmodel.UsingacasestudyoftertiaryhospitalsinShenzhen,China,thisstudyre-examinesthedifferencebetweenthegravityp-medianmodelwiththep-medianmodel,bydecomposingthedifferencebetweenthetwomodelsintogravityruleandvariantattraction.Thisstudyalsoproposesamodifiedgravityp-medianmodelbyincorporatingadistancethreshold.Theempiricalresultssupportthevalidityofthegravityp-medianmodel,andalsorevealthatonlywhentheattractionsofcandidatefacilitylocationsarevariablewillthegravityp-medianmodelleadtodifferentresultswiththep-medianmodel.Thedifferencebetweenthemodifiedgravityp-medianmodelandthegravityp-medianmodelisalsoexamined.Moreover,theimpactsofthedistance-decayparameteranddistancethresholdonsolutionsareinvestigated.Resultsindicatethatalargerdistance-decayparametertendstoresultinamoredisperseddistributionofoptimalfacilitiesandasmalleraveragetraveltime,andasmallerdistancethresholdcanbetterpromotethespatialequityoffacilities.Theproposedmethodcanalsobeappliedinstudiesofothertypesoffacilitiesorinotherareas.
简介:摘要造纸行业,特别是废纸造纸企业近年来受到国家宏观调控政策的影响,国外优质的废纸原料(特别是美国废纸)使用量大幅度的减少,国内废纸使用占比不断升高,车间排水钙离子和铁离子的浓度上升明显。同时,随着废水排放标准提高,废纸造纸企业基本上都采用了芬顿深度处理技术,但带来的负面影响是污水系统内的铁离子含量升高。因此,作在造纸废水处理中处于核心地位的IC反应器是否能够稳定高效运行,成为造纸企业长期稳定发展的重要一环。本次研究调低IC运行的pH值,将IC进水pH值控制在5.5-6.2,出水pH控制在6.5-6.8,即可以有效减少污泥钙化和铁盐沉淀,也可以保证IC高效率运行,节省运行成本。
简介:在最近的年里,电子learning系统在许多公司作为一个训练工具被采用了,当它能帮助雇员到在一短时间并且以低成本的完全的训练。在这上下文以内,自从2003,在台湾的经济事情(MOEA)的部的工业开发局(IDB)每年赞助了超过50家企业帮助他们实现设定的电子learning系统。关于电子learning的过去的研究主要集中了于一个标准并且采用了回归途径,例如检验在满足或继续的用法意愿和各种各样的先前的因素之间的关系。尽管回归方法能揭开电子learning采纳的重要因素,他们不能显示出每个因素的罐头(weighting),并且因此,公司不能分配资源的最佳的层次。克服这个问题,这研究收集了与从文学和专家意见的评论实现设定的电子learning系统的公司有关的因素,然后构造了一张层次因素桌子。基于因素的适当和独立,并且是由IDB,电子learning方案供应商和IDB的工程领导人的工程提升办公室的专家估计了赞助企业,这篇论文然后设计了一个分析层次过程(AHP)格式问询表并且送了它给这些一样的专家收集他们的回答。因素weightings基于模糊分析层次过程(FAHP)方法被导出。最后,关键因素的分析被执行,建议提供了。基于这个工作的结果,有有限资源的服务工业公司能完成合适的资源分配并且更快速并且成功地采用设定的电子Learning系统。
简介:TheE-supplychainisformedgraduallyalongwiththedevelopmentofnetwork,whichisgettingmoreattentionamongenterpriseswithuniqueadvantages.ThreeE-supplychainoperationmodesareconstructedinthispaper,thentheoptimalpricingandadvertisingstrategiesunderthosemodesarestudiedandcompared,whicharedemonstratedwithnumericalexamples.Theresultsofcomparisonandanalysisshowthat:Sellingprice,networkplatformservicelevel,advertisinginvestmentandtheprofitsofmanufacturer,networkplatformandE-supplychainallincreasewithadvertisingeffectivenessofstimulatingdemandgrowth.Undercentralizeddecision-makingmode,servicelevelishighest,advertisinginvestmentislargestandtheprofitofE-supplychainishighestaswell.Whenmanufacturerleadsdecentralizeddecision-makingmode,notonlynetworkservicelevel,advertisinginvestmentandtheprofitofmanufacturercangainbetterresults,butalsoprofitofnetworkplatformcanbehigherwhiletheadvertisementeffectofincreasingdemandisbigenough.Additionally,itisconfirmedthatcentralizeddecision-makingisbetterthandecentralizeddecision-makingforsystemoperation.Besides,decentralizeddecision-makingmodeledbymanufacturerissuperiortoitledbynetworkplatformontheconditionthatadvertisementeffectisobvious.
简介:Inthispaper,wegiveanorder-preserving,isometricandisomorphicembeddingoperatorfromthefuzzynumberspaceE~1toaclassicalBanachspaceandshowsomenecessaryandsufficientintegrabilityconditionsoffuzzyintegralswhichweredefinedbyM.MatlokaandO.Kalevabymeansofsuchanoperator.