简介:Threegenericformsofgovernance--hierarchy,hybridandmarketareproposedinthenewinstitutionaleconomics,givinganabstractdescriptionofalternativecoordinationandcontrolmechanismsforgeneraluse.Whilethistheoryisknownasfarawayfrombeingoperationalandspecified,afewresearchersinthemanagementandorganizationareaaretryingtoextendGalbraithand/orMintzberg'sorganizationaldesigntheoriesintotheapplicationoflogisticalcoordinationforobtainingasmoothflowofproductsalongthesupplychainwithinandwithoutthefocalorganization.Inthispaper,wepresentanexplorativecasestudyonthedesignofvariousorganizationalarchitecturesoflogisticsactivitiesandtheirrelevantcoordinationmechanisms,especiallyinternalandexternalcontractsasonenewkindofhybridmechanismsforcoordinatingeffectivesupplychains.
简介:Therearetwopartsinthispaper.InthefirstpartweconstructtheMarkovchaininrandomenvironment(MCRE),theskewproductMarkovchainandp-θ~→chainfromarandomtransitionmatrixandatwo-dimensionalprobabilitydistribution,andinthesecondpartweprovethattheinvarianceprincipleforp-θ→chain,amorecomplexnon-homogeneousMarkovchain,istrueundersomereasonableconditions.Thisresultismorepowerful.
简介:Whenpolyethylenechainsarestretched,thechainsareregardedasbeingconfinedinaninfinitecylinderwithdecreasingdiameter.Theconformationalpropertiesofpolyethylenechainsconfinedinaninfinitecylinderareinvestigatedbyusingrotationalisomericstatemodel.Usingtheaverageconformationalenergyandentropyandtheaveragelength,wecandeterminetheelasticforceforthefractionoftheenergytermtothetotalforce.f_e/f,wheref_e=?/?
简介:Inthispaper,anewmethodfordealingwithsubstructurechainispresented.Here,asubstructurechainmeansastructureconsistingofanumberofidenticalsubstructuresconnectedinseries.Thismethodisparalleltotheexpansionmethodinthestructuralanalysisaccordingtothetransversesection.Themethodofshiftinvarianceandthatofinitialparameterandtransfermatrix,theirmutual-relationandcom-bineduse,aswellastheanalysisoftheeigenproblemonthetransversesection,andtheexpansionmethodbasedontheeigenvectorsaredescribedinthispaper.
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.
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。
简介:Supplychainisacomplex,hierarchical,integrated,openanddynamicnetwork.Everynodeinthenetworkisanindependentbusinessunitthatunitesotherorganizationstodevelopitsvalue,thecompetitionandcooperationbetweentheseunitsarebasicimpetusofthedevelopmentandevolutionofthesupplychainsystem.Thecharacteristicsofsupplychainasacomplexadaptivesystemanditsmodelingarediscussedinthispaper,anduseanexampledemonstratingthefeasibilityofCASmodelinginsupplychainmanagementstudy.
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。
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.
简介:Inathree-dimensionaloff-latticemodel,themethodofShakhnovichandGutinforminimizingtheHamiltonianisappliedtothedesignofaprotein-modelchain.Theeffectofthenumberofhydrophobicandhydrophilicmonomertypesonthedesignabilityofaprotein-modelchainisinvestigated.Thesimulationresultsrevealthatthenumberofhydrophobicmonomertypesisamuchmoreimportantfactorthanthatofthepolarmonomertypesinthedesignofaprotein-modelchain.