Analysis of rural transformation development in China since the turn of the new millennium.docx
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AnalysisofruraltransformationdevelopmentinChinasincetheturnofthenewmillennium
ThissituationmeansanegativepowerintheDG(powerinversion)withitsspeedgovernorunabletoregulatefrequency.Toavoidthissituation,theDCSmustordercoordinatedpowerconsumptiontotheBESSandDLinordertokeeptheDGproducedpowerpositive.InthisarticleitisshownbysimulationhowtheDCSmanagesbothatemporarypowerinversionandapermanentonewiththemandatorytransitionfromWDtoWOmode.Thepresentedgraphsforfrequency,voltage,activepowersofthesystemelementsandbatteryvoltage/currentshowtheeffectivenessofthedesignedcontrol.
ArticleOutline
1.Introduction
2.Thepowersystem
3.Thecontrolsystem
4.Simulationschematics
4.1.Activepowercontrol
5.Simulationresults
6.Conclusions
Appendix.Appendix
References
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339
RiskfactorsforfatalcrashesinruralAustralia OriginalResearchArticle
AccidentAnalysis&Prevention,Volume43,Issue3,May2011,Pages1082-1088
VictorSiskind,DaleSteinhardt,MarySheehan,TeresaO’Connor,HeatherHanks
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Abstract
Thispaperpresentsfindingsfromtheruralandremoteroadsafetystudy,conductedinQueensland,Australia,fromMarch2004tillJune2007,andcomparesfatalcrashesandnon-fatalbutseriouscrashesinrespectoftheirenvironmental,vehicleandoperatorfactors.Duringthestudyperiodtherewere613non-fatalcrashesresultingin684hospitalisedcasualtiesand119fatalcrashesresultingin130fatalities.Additionalinformationfrompolicesourceswasavailableon103fataland309non-fatalseriouscrashes.Overthreequartersofbothfatalandhospitalisedcasualtiesweremaleandthemedianageinbothgroupswas34years.Fatalcrashesweremorelikelytoinvolvespeed,alcoholandviolationsofroadrulesandfatalcrashvictimswere2½timesmorelikelytobeunrestrainedinsidethevehiclethannon-fatalcasualties,consistentwithcurrentinternationalevidence.Aftercontrollingforhumanfactors,vehicleandroadconditionsmadeaminimalcontributiontotheseriousnessofthecrashoutcome.Targetedinterventionstopreventfatalitiesonruralandremoteroadsshouldfocusonreducingspeedanddrinkdrivingandpromotingseatbeltwearing.
ArticleOutline
1.Introduction
2.Methods
2.1.Datasources
2.2.Dataanalysis
3.Results
3.1.Demographiccharacteristics
3.2.Temporalcharacteristics
3.3.Crashcharacteristics
3.3.1.Roadenvironment
3.3.2.Vehiclefactors
3.4.Operatorfactors
3.5.Multivariateanalysis
4.Discussion
5.Conclusion
Acknowledgements
References
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Researchhighlights
AstudyinAustralianruralareasreported119fataland613non-fatalcrashes.
Human,roadandvehiclefactorsinfatalandnon-fatalcrasheswerecompared.
Seatbeltwearing,alcoholuseandspeedcontributedmosttoseverity.
Roadconditionsandvehiclefactorsmadelittlecontributiontoseverity.
Alcoholuseaffectedseverityoverandaboveitsassociationwithotherfactors.
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TrendsofenergyefficiencyinFinnishroadfreighttransport1995–2009andforecastto2016 OriginalResearchArticle
EnergyPolicy,Volume38,Issue12,December2010,Pages7676-7686
HeikkiLiimatainen,MarkusPöllänen
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Abstract
Aframeworkformodelingandanalyzingtheenergyefficiencyofroadfreighttransportispresentedinthispaper.ThisframeworkistestedbyusingthedatafromtheFinnishGoodsTransportbyRoadstatistics.Thedatawasenhancedbycalculatingthefuelconsumptionforeachtripinthedata.Tocalculatethis,weight-fuelconsumptionfunctionswereestimatedforeachEuro-classvehiclesandroadtype.Thisisanewmethodforanalyzingtheenergyefficiencyofroadfreighttransportanditcouldbeappliedalsoinothercountriesgatheringfreighttransportdatawithcontinuouscompanysurveys.TheanalysisshowthattheenergyefficiencyofroadfreighttransportinFinlandimprovedduring1995–2002,buthasdeclinedsince.Themajordriversinthedevelopmenthavebeenthechangesinthelevelofemptyrunningandvehiclefuelefficiency.ExtrapolatingcurrentstatisticaltrendsoffactorsthatinfluencetheenergyefficiencyshowthatthetargetsetbytheFinnishgovernmentforimprovingenergyefficiencyby9%until2016willnotbeachieved.However,thetargetispossibletobeachievedbyacombinationofsmallchangestosomedeterminants.
ArticleOutline
1.Introduction
2.Methodsanddata
2.1.Frameworkforanalyzingenergyefficiencyinroadfreighttransport
2.2.Datasources
2.3.Methodimplemented
3.Estimatingvehicles’energyconsumption
4.Trendsbetween1995and2009
5.Energyefficiencytargetandforecast2016
5.1.Definingtheenergyefficiencytargetfor2016
5.2.Forecastto2016
6.Conclusions
Acknowledgements
References
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Researchhighlights
►Anewmethodforanalyzingenergyefficiencybyaddingfueldatatonationalfreightstatistics.►EnergyefficiencyimprovedinFinlandfrom1995to2002buthasdeclinedsince.►EnergyefficiencyinFinlandisstillonagoodlevelinternationally.►TargetoftheFinnishenergyefficiencyagreementwasquantifiedforthefirsttimeinthisstudy.►Thetargetwillnotbeachievedifthepasttrendscontinue.
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InvestigationofpistonbowlgeometryandspeedeffectsinamotoredHSDIdieselengineusingaCFDagainstaquasi-dimensionalmodel OriginalResearchArticle
EnergyConversionandManagement,Volume51,Issue3,March2010,Pages470-484
C.D.Rakopoulos,G.M.Kosmadakis,E.G.Pariotis
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Abstract
Thepresentworkinvestigatestheeffectofvaryingthecombustionchambergeometryandenginerotationalspeedonthegasflowandtemperaturefield,usinganewquasi-dimensionalenginesimulationmodelinconjunctionwithanin-housedevelopedcomputationalfluiddynamics(CFD)codeservedtovalidatethepredictedin-cylinderflowfieldandgastemperaturedistributioncalculatedbythequasi-dimensionalmodel,forthreealternativepistonbowlgeometriesandthreerotationalspeeds.ThisCFDcodecansimulatethree-dimensionalcurvilineardomainsusingthefinitevolumemethodinacollocatedgrid;itsolvesthegeneralizedtransportequationfortheconservationofmass,momentumandenergy,andincorporatesthestandardk–εturbulencemodelwithsomeslightmodificationstointroducethecompressibilityofafluidingeneralizedcoordinates.Ontheotherhand,thequasi-dimensionalmodelsolvesthegeneraltransportequationfortheconservationofmassandenergybyafinitevolumemethodthroughouttheentirein-cylindervolume,whilefortheestimationoftheflowfieldanewsimplifiedthreedimensionalairmotionmodelisused.Tocomparethesetwomodelsthein-cylinderspatialandtemporaltemperaturedistribution,themeancylinderpressurediagram,aswellasthemeanin-cylinderradialandaxialvelocityareexamined,forthethreepistonbowlgeometriesandthethreespeeds,forahighspeeddirectinjection(HSDI)dieselengineoperatingundermotoringconditions.Fromthecomparisonofcalculatedresults,itbecomesapparentthatthetwomodelspredictsimilarin-cylindertemperaturedistributionsandmeanairvelocityfieldsateachcrankangle,forallcasesexamined.Thus,itisshownthatthequasi-dimensionalmodelwiththeproposedsimplifiedairmotionmodeliscapableofcapturingthephysicaleffectofcombustionchambergeometryandspeedonthein-cylindervelocityandtemperaturefield,whileneedingsignificantlylowercomputingtimecomparedtothemoredetailedandaccurateCFDmodel.Ontheotherhand,theCFDmodelismoresuitablewhendetailedsimulationofthein-cylindergeometryisrequiredandthewaythecorrespondingtransportphenomenaareaffected.
ArticleOutline
Nomenclature
1.Introduction
2.DescriptionoftheCFDmodel
2.1.Outlineandequations
2.2.Computationaldomain
3.Descriptionofthequasi-dimensionalmodel
3.1.Generaloutline
3.2.Computationaldomain
4.Conditionstestedwiththetwomodelsandenginespecifications
5.Resultsanddiscussion
5.1.Modelsconstantscalibration
5.2.Meancylinderpressureandtemperaturetraces
5.3.Meangasflowfield
5.4.Spatialdistributionoftemperature
5.5.Thermaldistributionofthecylindermass
5.6.Heattransferthroughthecylinderwalls
6.Conclusions
Acknowledgements
References
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342
Paradigmshiftinurbanenergysystemsthroughdistributedgeneration:
Methodsandmodels ReviewArticle
AppliedEnergy,Volume88,Issue4,April2011,Pages1032-1048
MassimilianoManfren,PaolaCaputo,GaiaCosta
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Abstract
Thepathtowardsenergysustainabilityiscommonlyreferredtotheincrementaladoptionofavailabletechnologies,practicesandpoliciesthatmayhelptodecreasetheenvironmentalimpactofenergysector,whileprovidinganadequatestandardofenergyservices.Theevaluationoftrade-offsamongtechnologies,practicesandpoliciesforthemitigationofenvironmentalproblemsrelatedtoenergyresourcesdepletionrequiresadeepknowledgeofthelocalandglob