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20120073()JournalofLiaochengUniversity(Nat.Sci.)Vol.20No.1Mar.2007a1)1)2)(1),102206;1),050035),,,.,,TM614A167226634(2007)01200382020,,,.,,,.,,,,,.,50kW,9m,19.2m.4.2t.1.5MW,58m,116m,120t.,,,,.50kW5,.,.,,,.,,,.,,,,,,.,,,,,,.1,,troposkien,50kWtroposkien(1).,15%,.,(1).:150kWa:2006211218,,;.:,.:,.:,PLC,..,,,,,,.,PLC,.,63ömin(rpm).95ömin(rmp).1,,.,.,.,.3:.,2.,100s,150s220s300s,.,,,,150s220s300s,,,.400s,.24,,.,;;;;;,;.,PLC,,,..ANSYSCP,..,:P=Cnö9550,(1),C:,Nm;n:,rpm.,.Cp.Cp,.:Cp=PöP=Pö(QSV3ö2),,Q:,kgöm3;S:,m2;V:,mös.K.3,.:K=VöV=RXöV=2PRnö60V,n:,rpm;R:,m;V:,mös;X:,radös.,,13mös,0.44,4.3.,;,Cp,.,,.,Cp0.32,(55)931:AComparativeStudyonPollenMorphologyofVarietyandFormofSophorajaponicaL.inLiaochengZHAOYan1,2)HOUGui2ling2)ZHANGXiu2sheng2)QIUYan2chang2)(1)SchoolofLifeScience,ShandongNormalUniversity,Jinan250014,China;2)AgriculturalSchool,LiaochengUniversity,Liaocheng252059,China)AbstractPollenMorphologyofvarietyandformofSophorajaponicaL.areexaminedunderscanningelectronmicroscope(SEM).Theresultsshowthatthepollengrainshavetheconsistencyinthespeciesandtheyarelongspheroidwith32colporate.Thepollengrainssizeandthemorphologyofornamentationamongdifferentvarietyandform.PollendifferencecanbeservedasaevidencefortheintraspeciesclassificationofSophorajaponicaL.KeywordssophorajaponicaL.,pollenmorphology,scanningelectronmicroscope(39)Cp(,Cp)72%,28%.:(4)5mös,13mös,,9kW.PLC,,.,,,,,,(1),,,,,,.4[1],,.[M].:,2003.[2].212[M],:,2005.[3],.[M],:,2003.WorkingStressandEfficiencyofVertical-axisWindTurbinesGeneratingSystemWANGRong2ai1)HAOJian2hong1)SHAOZhi2wei2)(1)SchoolofElectricalAndElectronicEngineering,NorthChinaElectricPowerUniversity,Beijing102206,China;2)ShijiazhuangCollege,Shijiazhuang050035,China)AbstractThestructureandpropertiesofvertical2axiswindturbinesgeneratingsystemwasintroducedinthispaper.Accordingtofieldtestdata,workingstressandefficiencyofwindturbineswasanalyed.Aschemewasputforwardtooptimizingsystemparametersandimprovingrotiopowercoefficientforwindturbines.Keywordsrotiopowercoefficient,vertical2axis,windpower551: