1453冷链物流冷链物流外文参考文献Word格式.docx
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1453冷链物流冷链物流外文参考文献Word格式.docx
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Dr.Jean-PaulRodrigueandDr.TheoNotteboom
1.Overview
WhileGlobalizationhasmadetherelativedistancebetweenregionsoftheworldmuchsmaller,thephysicalseparationofthesesameregionsisstillaveryimportantreality.Thegreaterthephysicalseparation,themorelikelyfreightcanbedamagedinoneofthecomplextransportoperationsinvolved・Somegoodscanbedamagedbyshockswhileotherscanbedamagedbyunduetemperaturevariations・Forarangeofgoodslabeledasperishables,particularlyfood,theirqualitydegradeswithtimesincetheymaintainchemicalreactionswhichratecanbemostlymitigatedwithlowertemperatures.Ittakestimeandcoordinationtoefficientlymoveashipmentandeverydelaycanhavenegativeconsequences,notablyifthiscargoisperishable.Toensurethatcargodoesnotbecomedamagedorcompromisedthroughoutthisprocess,businessesinthepharmaceutical,medicalandfoodindustriesareincreasinglyrelyingonthecoldchaintechnology.
Thecoldchainreferstothetransportationoftemperaturesensitiveproductsalongasupplychainthroughthermalandrefrigeratedpackagingmethodsandthelogisticalplanningtoprotecttheintegrityoftheseshipments.SpecializationhasledmanycompaniestonotonlyrelyonmajorshippingserviceproviderssuchastheUnitedParcelService(UPS)andFEDEX,butalsomorefocusedindustryspecialiststhathavedevelopedanichelogisticalexpertisearoundtheshippingoftemperaturesensitiveproducts.Thepotentialtounderstandlocalrules,customsandenvironmentalconditionsaswellasanestimationofthelengthandtimeofadistributionroutemakethemanimportantfactoringlobaltrade.Asaresult,thelogisticsindustryisexperiencingagrowinglevelofspecializationandsegmentationofcoldchainshippinginseveralpotentialnichemarketswithinglobalcommoditychains・Wholenewsegmentsofthedistributionindustryhavebeenveryactiveintakingadvantageofthedualdevelopmentofthespatialextensionofsupplychainssupportedbyglobalizationandthesignificantvarietyofgoodsincirculation.Fromaneconomicdevelopmentperspective,thecoldchainenablesmanydevelopingcountriestotakepartintheglobalperishableproductsmarket.Fromageographicalperspective,thecoldchainhasthefollowingimpacts:
Global.Specializationofagriculturalfunctionspermittingthetransportoftemperaturesensitivefoodproductstodistantmarkets.Enablesthedistributionofvaccinesandotherpharmaceuticalorbiologicalproducts・Regional.Cansupportthespecializationoffunctionsandeconomiesofscale,suchasspecializedlaboratories・
Local.Timelydistributiontothefinalconsumer,namelygrocerystoresandrestaurants.
2.EmergenceofColdChainLogisticsWhileglobalcommoditychainsarefairlymodernexpansionsinthetransportationindustry,therefrigeratedmovementoftemperaturesensitivegoodsisapracticethatdatesbackto1797whenBritishfishermenusednaturalicetopreservetheirfishstockpiles.Thisprocesswasalsoseeninthelate1800sforthemovementoffoodfromruralareastourbanconsumptionmarkets,namelydairyproducts.Coldstoragewasalsoakeycomponentoffoodtradebetweencolonialpowersandtheircolonies・Forexample,inthelate1870sandearly1880s,FrancewasstartingtoreceivelargeshipmentsoffrozenmeatandmuttoncarcassesfromSouthAmerica,whileGreatBritainimportedfrozenbeeffromAustraliaandporkandothermeatfromNewZealand.By1910,600,000tonsoffrozenmeatwasbeingbroughtintoGreatBritainalone・Thefirstreefershipforthebananatradewasintroducedin1903bytheUnitedFoodCompany.Thisenabledthebananatomovefromanexoticfruitthathadasmallmarketbecauseitarrivedinmarketstooripe,tooneoftheworld'
smostconsumedfruit.Thetemperaturecontrolledmovementofpharmaceuticalsandmedicalsuppliesisamuchmoremoderntransitoptionthantheshippingofrefrigeratedorfrozenfood.Sincethe1950s,logisticalthirdpartycompaniesbegantoemergeandinstitutenewmethodsforsuccessfullytransportingtheseglobalcommodities.Beforetheiremergence,coldchainprocessesweremostlymanagedinhousebythemanufacturer.IntheUnitedStates,FoodandDrugAdministrationrestrictionsandaccountabilitymeasuresoverthestabilityofthecoldchainincitedmanyofthesecompaniestorelyonspecialtycouriersratherthancompletelyoverhaulingtheirsupplychainfacilities.Aspecializedindustrywasthusborn.Thevalueofthecoldchaininthepreservationofexpensivevaccinesandmedicalsupplieswasonlybeginningtoberecognizedwhentheselogisticalprovidersstartedtoappear.Asawarenessbegantogrow,sodidtheneedforefficientmanagementofthecoldchain.
Therelianceonthecoldchaincontinuestogainimportance.Withinthepharmaceuticalindustryforinstance,thetesting,productionandmovementofdrugsreliesheavilyoncontrolledanduncompromisedtransferofshipments.Alargeportionofthepharmaceuticalproductsthatmovealongthecoldchainareintheexperimentordevelopmentalphase.Clinicalresearchandtrialsisamajorpartoftheindustrythatcostsmillionsofdollars,butonethatalsoexperiencesafailurerateofaround80%・AccordingtotheHealthcareDistributionManagementAssociation,ofthecloseto200billiondollarsinpharmaceuticaldistribution,about10%aredrugsthataretemperaturesensitive.Thismakesthecoldchainresponsiblefortransportinganear20billiondollarinvestment.Iftheseshipmentsshouldexperienceanyunanticipatedexposuretovarianttemperaturelevels,theyruntheriskofbecomingineffectiveorevenharmfultopatients.
Temperaturecontrolintheshipmentoffoodstuffsisacomponentoftheindustrythathascontinuedtoriseinnecessitywithinternationaltrade・Asagrowingnumberofcountriesfocustheirexporteconomyaroundfoodandproduceproduction,theneedtokeeptheseproductsfreshforextendedperiodsoftimehasgainedinimportance.Increasingincomelevelscreateachangeindietwithamongstothersagrowingappetiteforfreshfruitandhighervaluefoodstuffssuchasmeatandfish.Personswithhighersocioeconomicstatusandwithmoreeconomicmeansaremorelikelytoconsumevegetablesandfruit,particularlyfresh,notonlyinhigherquantitiesbutalsoingreatervariety.Consumerswithincreasingpurchasepowerhavebecomepreoccupiedwithhealthyeating,thereforeproducersandretailershaverespondedwithanarrayofexoticfreshfruitsoriginatingfromaroundtheworld.
AnymajorgrocerystorearoundtheworldislikelytocarrytangerinesfromSouthAfrica,applesfromNewZealand,bananasfromCostaRicaandasparagusfromMexico・Thus,acoldchainindustryhasemergedtoservicethesecommoditychains.In2002,anestimated1200billiondollars1worthoffoodwastransportedbyafleetof400,000refrigeratedcontainers(Reefers).Alone,theUnitedStatesimportsabout30%ofitsfruitsandvegetablesand20%ofitsfoodexportscanbeconsideredperishables・Theuncompromisedqualityandsafetyofthisfoodisoftentakenforgranted,despitebeingthemainreasonbehindtheabilitytosellthefood.Thecoldchainservesthefunctionofkeepingfoodfreshforextendedperiodsandeliminatingdoubtsoverthequalityofthefoodproducts.Inallthesupplychainsitisconcernedwith,coldchainlogisticsfavorhigherlevelsofintegrationsincemaintainingtemperatureintegrityrequiresahigherlevelofcontrolofalltheprocessesinvolved.Itmayevenincitethirdpartylogisticsproviderstoacquireelementsofthesupplychainwheretimeandotherperformancefactorsarethemostimportant,evenfarming.Thismayinvolvetheacquisitionofproducefarms(e.g.oranges)toinsuresupplyreliability.
3.ProvidingTemperatureControlledEnvironments
Thesuccessofindustriesthatrelyonthecoldchaincomesdowntoknowinghowtoshipaproductwithtemperaturecontroladaptedtotheshippingcircumstances・Differentproductsrequiredifferenttemperaturelevelmaintenancetoensuretheirintegritythroughoutthetravelprocess.Forinstance,themostcommontemperaturestandardsarenbananan(13°
C),”chill"
(2°
C),"
frozen"
(-18°
C)and"
deepfrozen"
(-29°
C).Stayingwithinthistemperatureisvitaltotheintegrityofashipmentalongthesupplychainandforperishablesitenablestoinsureandoptimalshelflife.Anydivergencecanresultinirrevocableandexpensivedamage;
aproductcansimplyloseanymarketorusefulvalue・
Beingabletoensurethatashipmentwillremainwithinatemperaturerangeforanextendedperiodoftimecomesdownlargelytothetypeofcontainerthatisusedandtherefrigerationmethod.Factorssuchasdurationoftransit,thesizeoftheshipmentandtheambientoroutsidetemperaturesexperiencedareimportantindecidingwhattypeofpackagingisrequired.Theycanrangefromsmallinsulatedboxesthatrequiredryiceorgelpacks,rollingcontainers,toa53footerreeferwhichhasitsownpoweredrefrigerationunit・Themajorcoldchaintechnologiesinvolve:
Dryice.Solidcarbondioxide,isabout-80°
Candiscapableofkeepingashipmentfrozenforanextendedperiodoftime.Itisparticularlyusedfortheshippingofpharmaceuticals,dangerousgoodsandfoodstuffs・Dryicedoesnotmelt,insteaditsublimateswhenitcomesincontactwithair.
Gelpacks・Largesharesofpharmaceuticalandmedicinalshipmentsareclassifiedaschilledproducts,whichmeanstheymustbestoredinatemperaturerangebetween2and8°
C・Thecommonmethodtoprovidethistemperatureistousegelpacks,orpackagesthatcontainphasechangingsubstancesthatcangofromsolidtoliquidandvic
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