简介: 这个投资策略迫使投资者在股市下滑时离场, 投资于股票的款额 = m x (现有财富-不愿承担风险的财富) m将高过1 举例说,他在股市的投资会减至72元
简介:ThisstudyfocusesoninventorystrategiesofInternetretailers(etailers).Theetailerfacesoptionsofholdingherowninventoryoroutsourcingthroughthethirdparty(ies).Weassessetailerinventorystrategiesthroughmathematicalmodelingandnumericalexperiments.Whenorderingandholdingherownstock,theetailerhasfullcontroloftheorderfulfillmentprocessbutbearstheinventory-relatedrisk.Whenoutsourcingstock,etailer'sordersmaynotgetanequalpriorityasforthoseofthethirdparty'sown.Builtuponsimpleoperationsresearchmodels,thenumericalexperimentssuggestthattheetailerisbetteroffrelyingonotherstofulfillordersifherdemand(profitmargin)islow,butshouldreverttothestrategyofmaintainingherowninventoryifhersalesvolume(profitmargin)isrelativelyhigh.Otherfactorsarealsoinvestigated.Thesefindingsseemtoconfirmwhatarebeingpracticedintheindustry.
简介:投资股票的策略,他在股市的投资会减至72元,initially put $60 in savings (60%) and $40 in stocks (40%).
简介:China'snationalsustainabledevelopmentstrategiesweredraftedundertheguidanceofDengXiaoping'stheoryonsocialistconstructionwithChinesedistinguishingfeaturesand,thetheoryandpracticeofsustainabledevelopmenthasfurtherenrichedandperfectedDengXiaoping'stheory.Anin-depthstudyofDengXiaoping'stheoryissignificantifwearetoaccuratelyunderstandoursustainabledevelopmentprogramandhowtobestimplementthestrategies.
简介:AbstractChronic wounds have always been a tough fight in clinical practice, which can not only make patients suffer from pain physically and mentally but also impose a heavy burden on the society. More than one factor is relevant to each step of the development of chronic wounds. Along with the in-depth research, we have realized that figuring out the pathophysiological mechanism of chronic wounds is the foundation of treatment, while wound infection is the key point concerned. The cause of infection should be identified and prevented promptly once diagnosed. This paper mainly describes the mechanism, diagnosis and therapeutic strategies of chronic wound infection, and will put an emphasis on the principle of debridement.
简介:Thispaperpresentsabidmodelwhichcanbereadilyimplementedinacompetitivebidenvironmentwithintheconstructionindustry.Competitivebidsituationsinvolveamultiplicityofcriteria.Inthispaper,31criteria,whicheffectoptimumestimation,areconsidered.ThemodelisbasedonCBR,thedatabaseofpastcompletedbids,andinformationassociatedwithsuccessfulbids.CBRisconsideredthebestmethodbecauseofthecomplexityoftheconstructiondomainandthewealthofinformationthatthecontractorspossessedonpastbids.
简介:Buildingecocitiesbecomesanobjectiverequirementforsustainabledevelopment.Thisarticlediscussestherelationshipbetweensustainabledevelopmentandsustainableurbandevelopment.Onthebasisofdiscussingthesigificanceofsustainableurbandevelopmentandthatofaneco-cityfromdifferentperspectives,itsuggestsseveralmanagementstrategiesfordevelopinganeco-city,adesirablesustainableurbanmodel.
简介:TheNairobiForward-LookingStrategies¥//OneoftheNairobiStrategies,Paragraph156fromtheNairobistrategiesisespeciallyrelevanttothe...
简介:Objective:Toprobeintoeffectivesurgicalproceduresandimprovetheoutcomeoftreatmentforpatientswithseverehepaticinjury.Methods:Aretrospectivestudyinvolving113patientswithseverehepatictrauma(AASTgradeIVandV)duringthepast12yearswascarriedout.Ninety-eightpatientsunderwentsurgicaltreatment.SurgicalinterventionsincludinghepatectomyordirectcontrolofbleedingvesselsbyfingerfracturetechniquewithPringlemaneuver,selectiveligationofhepaticartery,retrohepaticcavalrepairwithtotalhepaticvascularocclusion,andperihepaticpackingweremainlyused.Results:Inthe98patientstreatedoperatively,thesurvivalratewas69.4%(68/98).Among40patientswithjuxtahepaticvenousinjury(JHVI),15werecuredwiththemaximumbloodtransfusionof12000ml.EightcasesofGradeIVinjurytreatednonoperativelywerecured.Thepercentageoffailureofnonoperativemanagementwas42.9%(6/14).Theoverallmortalityratewas32.7%(37/113),and57%ofthedeathswereduetoexsanguination.Conclusions:Reasonablesurgicalproceduresbasedonclassificationofhepaticinjuriescanincreasethesurvivalrateofseverelivertrauma.AccurateperihepaticpackingiseffectiveindealingwithJHVI.