简介:Distributedgeneration(DG)willchangecharacteristicsofpowerflowandfaultsoftraditionaldistributionnetworkaswellasthenetworkoperationmode,especiallytheoperationofrelayprotectionandautomaticcircuitbreakerre-closing.Inthispaper,thecharacteristicsandinfluencesofseveraltypesofdistributedgenerationandconnectionpattern,relayprotectionandautomaticcircuitbreakerre-closingareanalyzed.Standardsofrelayprotectionwhendistributedgenerationaccesstodistributionnetworkarediscussedaswell.
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简介:IntroductionInthisarticlewediscussmakinguseofappliedlinguistictheory,asthemeansofachievingnationalstandardsattertiarylevel.Wecontestthatmethodsnowwidelyinuseatcollegesanduniversitiesareinsufficienttoreachmodernnationwidetargets.Wesuggestmodificationsinteachingapproachandpresentideasforsupplementingandenliveningexistingmaterialsorreplacingthem.MuchofthearticleisdrawnfromourconvergingexperiencesbothasaChineseuniversityteacherofEnglishfromoneaspectandasanEnglishEFLspecialistfromanother.Wespeakjointlyfromthe’chalkface’andwishtoshareourviewsandbeprovokedintoseekingsolutionstothenewchallengesforChineseEFLinherentintargetssetbythenationalstandards.
简介:AtpresentmanyCADsoftwareproductsdidnotfullymeettherequirementsofNationalStandard《TechnicaldraftingandMechanicalDrawing》thatgreatlyaffectsthequalityandspeedofengineeringdesign.Takingcomputer-aideddesignoftypicalmechanicalpartsasanexample,thispaperproposesanapproachtodevelopcorrespondingfunctionsinCADsoftwaretoenhancethestandardizationofengineeringdesign.
简介:ThisstudyaimstoexplorefundamentalissuesrelatedtoIFRSadoptioninIndonesia,includinghoweducationalaccountinganticipatesIFRSimplementationin2012,thereadinessofIndonesianaccountantstofacetheimplementationofIFRSandtheliberalizationofaccountingservicesandPPApreparednesstomakeaccountants,whoarecompetentandabletocompeteintheglobalmarket.Theresearchmethodusedinthisresearchisdescriptiveresearchmethodbyusingdatafromvarioussourcesofliteraturesuchasbooks,informationfrommassmediaandinternet.TheresultsofthisstudyindicatethatIFRSimplementationwillbedonetakingalotofchangesinmindset,paradigm,andaccountingteachingpatterns.Acurriculumimprovementshouldbemadetocreateaccountantsreadytocompeteintheglobalmarketplace.
简介:Theurbanelectricpowerdistributionnetworkrequireshighersupplyreliability,butthedecisionofinvestmentpolicyischieflydependentonthesecuritystandardsadoptedbythesupplyutilities.Thus,theformulationofreliabilitystandardsdeservesseriousconsiderationevenregardinginvestmentalone.Supplyreliabilitycanbeexpressedintermsofsupplyavail-ability,whichrelatestoannualdurationofinterruptionperconsumer.
简介:Up-to-DateInformationaboutChina'sPopulationandLivingStandardsIn1993,thecrudebirthrateofthepopulationinChinawas18.09perthousan...