简介:Fromtheviewofthedomesticandinternationalenergy,environmentandoperationsituation,thepaperanalysestheconfrontedproblemsofironandsteelindustry,answerswhybaosteelhasbeenfulfillingenvironmentoperationstrategy,andproceedtotheintroductionofitsenvironmentmanagementpracticeandfutureoutlooks.Theenvironmentmanagementisessentiallyagreenvaluecreation,whichemergestheenvironmentalprotectionintothewholebusinessenterpriseoperatesprocessinordertocreateitsvalue.Theenvironmentmanagementisakindofmanagementcreation,isakindofactiveenvironmentmanagement,whichpromotesthemainsenseofenergyconservationandemissionmitigation.
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简介:ObjectiveToreportoutcomesofnonsurgicalandsurgicalmanagementofMenière’sdiseaseatBeijingTiantanHospital.MethodsPatientswithMenière’sdiseasewerecategorizedintogroupsbasedonhearingandqualityoflife.Individualizedmanagementwasprovided,includinglifestylemodification,drugtherapies,endolymphaticsacdecompressionandlabyrinthectomy.Treatmentoutcomeswereevaluatedduringupto24monthsfollowup.ResultsEightysevenpatientsunderwentlifestylemodificationanddrugtherapies.ThevertigocontrolrateofGradeAandBwas76.9%and83.8%respectively.Sixpatientsreceivedsurgicalmanagement,includingendolymphaticsacdecompression(n=5)andlabyrinthectomy(n=1).Forthesepatients,thevertigocontrolrateofGradeAandBwas80%and100%,respectively.ConcluIsionsManagementofMenière’sdiseasedependsonseveralfactors,i.e.severitiesofvertigoandhearingloss,qualityoflife,surgicalcontraindicationsandpatientsubjectivedesire.Thetreatmentisdrugtherapiesforthemajorityofpatients,aswellaslifestylemodification.Surgicalindicationsarerareandtheleastinvasiveproceduresshouldbeconsideredfirst.Theresultsofsurgeryaregenerallysatisfying.
简介:Theproblemofhouseholdsolidwastehasbeenconcernedandresearchedonbymunicipalitiesandresearchers.Atpresent,householdsolidwastehasbeenchangedtomanagementproblemfromtechnicalone.Fromthepointviewofmanagement,theresearchonhouseholdsolidwasteistostudythefactorswhichinfluenceresident’sbehaviorofmanagingtheirwaste.Basedontheliteraturereview,firstly,thispapersummarizesthosefactorswhichhavealreadybeenidentifiedtohaveimpactonresident’sbehaviorofmanagingtheirwaste.Theyaresocial-demographicvariables,knowledge,environmentalvalues,psychologicalfactors,publicityandsystemdesign.Secondly,threetypicalmodelsoftherelationshipbetweenfactorsandbehavior,whicharefactorsdeterminingtaskperformanceinwastemanagement,conceptualizationofwastemanagementbehaviorandthetheoreticalmodelofrepeatedbehavioronhouseholdwastemanagement,areanalyzedandthedeficienciesofthesemodelsarealsoanalyzed.Finally,accordingtothecurrentsituationinhouseholdwastemanagementandthecultureandresident’shabitsinChina,thispaperputsforwardaresearchfocusandsuggestionsaboutresident’sbehaviorofhouseholdsolidwastemanagement.
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简介:SincePresidentNixonvisitedChinain1972,theicehasbrokeninChina-U.S.relations.In1979,thetwocountriesnormalizedbilateralrelationsbyestablishingdiplomaticrelations.Overthepastthreedecades,bilateralrelationshaveexperiencedcomplicatedandconvolutedchange.Today,China-U.S.relationsareentering
简介:Amathematicalmodelofapredator-preymodelwithIvlev'sfunctionalresponseconcerningintegratedpestmanagement(IPM)isproposedandanalyzed.Weshowthatthereexistsastablepest-eradicationperiodicsolutionwhentheimpulsiveperiodislessthansomecriticalvalues,Furthermore,theconditionsforthepermanenceofthesystemaregiverl.Byusingbifurcationtheory,weshowtheexistenceandstabilityofapositiveperiodicsolution.Theseresultsarequitedifferentfromthoseofthecorrespondingsystemwithoutimpulses.Numericalsimulationshowsthatthesystemweconsiderhasmorecomplexdynamicalbehaviors.Finally,itisprovedthatIPMstrageyismoreeffectivethantheclassicalone.
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简介:Citiesarethecrystallizationofhumancivilization.'ThelstanbulDeclarationonHumanSettlements'launchedin1996bytheUnitedNationsHumanSettlementsProgrammestressed,'Ourcitiesmustbeplaceswherehumanbeingsleadfulfillinglivesindignity,goodhealth,safety,happinessandhope.'Thetheme'Bettercity,Betterlife'ofWorldExpo2010ShanghaiChinaisevenmoreseductiveandiswhatpeoplearelongingfor.Withthedreamof'Betterlife',millionsofChinesefarmworkersdecidedtoleavetheirhomeland,rushingtothecities,whichhasformedtheworld'slargestpopulationmovementtoday.