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184 个结果
  • 简介:Threegenericformsofgovernance--hierarchy,hybridandmarketareproposedinthenewinstitutionaleconomics,givinganabstractdescriptionofalternativecoordinationandcontrolmechanismsforgeneraluse.Whilethistheoryisknownasfarawayfrombeingoperationalandspecified,afewresearchersinthemanagementandorganizationareaaretryingtoextendGalbraithand/orMintzberg'sorganizationaldesigntheoriesintotheapplicationoflogisticalcoordinationforobtainingasmoothflowofproductsalongthesupplychainwithinandwithoutthefocalorganization.Inthispaper,wepresentanexplorativecasestudyonthedesignofvariousorganizationalarchitecturesoflogisticsactivitiesandtheirrelevantcoordinationmechanisms,especiallyinternalandexternalcontractsasonenewkindofhybridmechanismsforcoordinatingeffectivesupplychains.

  • 标签: supply CHAIN LOGISTICS REORGANIZATION coordinating MECHANISMS
  • 简介:Therearetwopartsinthispaper.InthefirstpartweconstructtheMarkovchaininrandomenvironment(MCRE),theskewproductMarkovchainandp-θ~→chainfromarandomtransitionmatrixandatwo-dimensionalprobabilitydistribution,andinthesecondpartweprovethattheinvarianceprincipleforp-θ→chain,amorecomplexnon-homogeneousMarkovchain,istrueundersomereasonableconditions.Thisresultismorepowerful.

  • 标签: 任意转换矩阵 马尔可夫链 倾斜积 不变性原理
  • 简介:Inthispaper,anewmethodfordealingwithsubstructurechainispresented.Here,asubstructurechainmeansastructureconsistingofanumberofidenticalsubstructuresconnectedinseries.Thismethodisparalleltotheexpansionmethodinthestructuralanalysisaccordingtothetransversesection.Themethodofshiftinvarianceandthatofinitialparameterandtransfermatrix,theirmutual-relationandcom-bineduse,aswellastheanalysisoftheeigenproblemonthetransversesection,andtheexpansionmethodbasedontheeigenvectorsaredescribedinthispaper.

  • 标签: SUBSTRUCTURE CHAIN SHIFT INVARIANCE transfer
  • 简介:一张链图允许指导并且未受指导的边,并且包含二的内在的数学性质。学习图形的模型的一个重要方法是使用得分标准测量图结构多好适合数据。在这份报纸,我们为基于Kullback鈥揕eibler距离学习链图的现在的得分标准。它是20张相等的、也就是说相等的链图获得一样的分数,因此执行平均的模型选择和模型能被用来。关键词链图-Markov等价-得分标准先生(2000)题目分类62B10-62H99由NNSFC(39930160)支持了;部分由BNU青春基础(104951)支持了

  • 标签: Chain图 Markov等价性 模型选择 Kullback Leibler距离
  • 简介:Likevaluechainandsupplychain,“industrialchain”becomesthefocusofattention.Theimplicationof“industrialchain”hasgainedalargerangeofextension.Itnotonlyexpressestheindustrial“chain”structureandrelationshipof“backandforward”inorderor“upanddown”indirection,butalsoitrepresentsaclusteroflargescaleoffirmsinanareaorcolony.Itisanetwork,oracommunity.Consequently,weconcludethat“industrialchain”isasynthesisofindustrialchain,industrialcluster,orindustrialnetwork.Inthisarticle,firstlywewilldistinguishindustrychainfromindustry.Anindustryisthecollectionoffirmsthathavethesameattribute,soanindustrycanbedefinedbyfirmcollectionofcertainattribute.Weindicatethatindustrialchainisakindofverticalandorderlyindustriallink.Itisdefinedaccordingtoaseriesofspecificproductorservicecreated.Secondlyweanalyzetheverticalorderlydefiinitionprocessfromtheaspectsofsocialdivisionoflaborandrequirementdivision,self-organizationsystem,andvalueanalysis.Non-symmetryanddependingonsystemorcommunityoflargescaleofindustrialunitsleadtoentireindustryto“orderly”structure.Ontheotherhand,thedraughtofdiversityandcomplexityofrequirementsimultaneouslyleadtoentireindustrytobemore“orderly”.Alongwithprocessesofself-organization,industrialwillappi'oachthestateofmoreorderlyandsteady,andconstantlymakeindustrialchainupgrade.Eachfirmorunit,whowillgainthevalue,hastoestablishchannelsofvalue,whichwecalled“industrialvaluechain”.Lastly,wediscusstheconsequenceofverticalandorderlydefinition,whichisexhibitedbyacertainrelationshipbody.Thetypicalformsofindustrialchainincludeindustrialcluster,strategyallianceandverticalintegrationetc.

  • 标签: 工业链条 整体套汇 垂直分解力 价值链
  • 简介:在供应链操作系统有许多造成分裂的事故;完成供应链的协作是为供应链研究的主要目的。当造成分裂的事故逐渐地影响了供应链的协调操作时,供应链协作上的存在研究文学在静止环境正在设定。造成分裂的事故怎么影响协调供应链的答案在这篇论文被给。基于供应锁住被否定刺激机制协调的基准,我们由使用随机的变量的二个不同分发函数在被用来表示供应混乱的模拟途径在供应链系统上学习供应混乱的影响。在这二模拟结果之间的比较;在供应混乱下面的可能的协作机制被建议。从供应链风险管理的观点,我们为经理提供灵感。

  • 标签: 供应链 物流业 模拟经济 经营策略
  • 简介:在这研究,一篇小说三功能的链扩展程序TATATRIOL与2-sulfanylethanol从1,3,5-triprop-2-en-1-yl-1,3,5-triazinane-2,4,6-trioneTATA的反应被综合。然后新的热塑的聚氨酯TPU被一步舞体积聚合从1,1-methanediylbis4-isocyanatocyclohexaneH的反应综合<潜水艇class=“a-plus-plus”>12MDI,聚乙烯adipate基于聚酯polyol和一个链扩展程序。Butane-1,4-diolBD和最新综合的单体,TATATRIOL,被用作链扩展程序。TPU的性质上的TATATRIOL的效果被调查并且与BDTPU与那些相比准备了。源于包含链扩展程序的硫的TPU比类似的TPU源于BD的在裂缝价值显示了更低的模量和高延伸。而且硫包含TPU展出了更高热的稳定性。

  • 标签: 热塑性聚氨酯 扩链剂 硫醚 二酸乙二醇酯 聚酯多元醇 TPU
  • 简介:Supplychainisacomplex,hierarchical,integrated,openanddynamicnetwork.Everynodeinthenetworkisanindependentbusinessunitthatunitesotherorganizationstodevelopitsvalue,thecompetitionandcooperationbetweentheseunitsarebasicimpetusofthedevelopmentandevolutionofthesupplychainsystem.Thecharacteristicsofsupplychainasacomplexadaptivesystemanditsmodelingarediscussedinthispaper,anduseanexampledemonstratingthefeasibilityofCASmodelinginsupplychainmanagementstudy.

  • 标签: 供应链 复自适应系统 动态会聚网络 CAS
  • 简介:属于超重元素的腐烂链的原子核的性质295118在有参数的使变形的相对论的吝啬的领域(RMF)理论在堵住的英国计算机学会近似NL-Z2设置了的向轴的方向的框架被学习了。象有约束力的精力,变丑,和腐烂精力Q那样的一些扎根的州的性质从有限范围的微滴模型(FRDM)与那些被获得了并且同意很好。在壳豁开的295118腐烂链表演的原子核的单个粒子的系列显然介绍核子数字依赖。分布从279110~283112从283112~295118,但是戏剧性地慢慢地改变的质子,中子和物质的root-mean-square(rms)半径,它可能由于在Z=的支壳层闭合110在279110。在295118腐烂链的腐烂一半生活被雇用簇模特儿和概括液体落下模型(GLDM)评估,并且当他们与已知的试验性的数据相比时,全面协议被发现。从簇模型获得的腐烂一生比GLDM的那些稍微大。最后,我们预言Z=的腐烂一半生活118,116,114,用簇模型和GLDM的112同位素,它也显示这二个模型能在超重原子核上在研究互相支持。从GLDM的结果总是比从簇模型获得的那些低。

  • 标签: 基态性质 衰变链 液滴模型 相对论平均场 超重元素 轴向变形
  • 简介:Objective:Toinvestigatetheapplicationofpolymerasechainreaction(PCR)detectionofHaemophilusducreyiinclinicaldiagnosisofchancroid.Methods:Nucleotidesequencesof16srRNAgenespecificforH.dureyiwereusedtodevelopprimersetsforamplificationoftwostrains.TheamplifiedproductsweretestedviaPCRandsequencedbyelectrophoresisina1.5%gel.TheseproductswerecomparedwiththoseofheterogeneousspeciesorrelatedbacteriatotestthespecificityofthePCRassay.PCRamplificationwithdifferentconcentrationsofH.ducreyiwasperformedtotestitssensitivity.Results:PCRamplificationoftwostrainsofH.ducreyiproducedasinglebandofexpected438bplength.ThesequencewasidentifiedwithgenomicDNA.Noneoftheother19referencespeciesamplifiedunderthesameconditionsgavethisresult.ThehighestsensitivityofPCRassayinthepresenttestwas10ng/L.Conclusions:PCRassayfordetectionofH.ducreyiisarapid,specific,andsensitivedetectionmethod.Iflaboratoryconditionsarestrictlycontrolled,PCRassayisapotentiallyusefullaboratorytestforH.ducreyiinfectiondiagnosis.

  • 标签: 聚合酶链反应 PCR 实验室诊断 软体下疳 临床研究 基因检测
  • 简介:Inathree-dimensionaloff-latticemodel,themethodofShakhnovichandGutinforminimizingtheHamiltonianisappliedtothedesignofaprotein-modelchain.Theeffectofthenumberofhydrophobicandhydrophilicmonomertypesonthedesignabilityofaprotein-modelchainisinvestigated.Thesimulationresultsrevealthatthenumberofhydrophobicmonomertypesisamuchmoreimportantfactorthanthatofthepolarmonomertypesinthedesignofaprotein-modelchain.

  • 标签: 分子生物学 蛋白质模型链 可设计性