简介:Ba1.0Co0.7Fe0.2Nb0.1O3-δ(BCFN)oxidewithperovskitecubicstructurewassynthesizedbysolidstatereactionmethod.CO2corrosionofBCFNmembranewasinvestigatedbyX-raydiffraction(XRD),scanningelectronmicroscopy(SEM),diffusereflectanceinfraredFouriertransformedspectroscopy(DRIFT)andX-rayabsorptionfinestructurespectroscopy(XAFS).Cobalt(Co)K-edgeabsorptionspectraofBCFNannealedinCO2revealthattheoxidationstatesofCoinallthesampleswerelargerthan+3andtheydecreasedwiththeincreaseofcalcinationtime.At800℃,1%CO2introducedintoHecouldspeedupthereductionofCocationsincomparisonwithpureHe.Inaddition,sulfateionsinthebulkofBCFNmembranepreferredtomigratetothesurfaceunderCO2calcinationandformmonoclinicBa(CO3)0.9(SO4)0.1besidesorthorhombicwitherite.Moreover,SEMresultsindicatethatthenucleationandgrowthofcarbonatesgrainsstartedatthegrainboundaryofthemembrane.
简介:ToimprovethemechanicalpropertiesofWC-Al2O3composites,theeffectsoftraceamountofCeO2additivesonthemicrostructureandmechanicalpropertiesoftheWC-Al2O3compositespreparedbyhotpressingwereinvestigated.TheresultsrevealedthattheWC-Al2O3compositesdopedwith0.1%CeO2possessedrefinedmicrostructureandenhancedmechanicalpropertiescomparedwiththatoftheundopedWC-Al2O3composites.TraceCeO2suppressedthedecarburizationofWC,promotedthemicrostructuralrefinement,andimprovedtheinterfacecoherenceoftheWCmatrixandAl2O3.When0.1%CeO2wasaddedtotheWC-Al2O3composites,theeffectofCeO2resultedintheachievementofarelativedensityof98.82%withanexcellentVickershardnessof16.89GPa,combiningafracturetoughnessof9.85MPa·m1/2withanacceptableflexuralstrengthof1024.05MPa.
简介:TheAnhuiHuaihuaGroupCo.Ltd.islocatedinthecentreofHuainanCity,closetoHuainan’sninecoalminesandthreepowergeneratingplants,witheasy-to-reachtraffic,developedtelecommunications,favorablepolicyandadvantageousdevelopmentconditions.ThecompanyisAnhui’simportantbaseincoalandchemicals,withfixedassetsofRMB900million;itisaClassAlegalpersonenterprise,realizinganintegrationofcapitalandoperation.Productioncapabilityformainproducts:280,000tonsofsyntheticammonia,80,000tonsofconcentratednitrateacid,110,000tonsofcarbamide,140,000tonsofammoniumnitrate,60,000tonsofpuresoda,250m~2
简介:1.MainachievementsofenvironmentalprotectionFrom1987to1994,withdoublingoftheinstalledgeneratingcapacity,thecoalconsumptionofpowerplantsdoubledaswell.Powerindustryhasbeenfacingthechallengefromenvironmentalprotection.Inordertopromotethecoordinateddevelopmentofpowerindustryandenvironmentalprotection,powersector:
简介:GansuRECo.Ltd.wasformerlyabery-lliumproducersetupin1970.ItchangedovertoproduceREproductsandrenamedin1975.ItislocatedinNorthwestChina’sin-dustrialcity,Lanzhou,thecapitalcityofGansuProvince.Ithasnearlythreehundredengineer-ingnersonnelandmorethantwentywellequippedproductionlinesbestsuitableforprocessingvariouskindsofrawmaterialsfromacrossthecountry.RE
简介:ThebindingofCo(bpy)2dppz3+tocalfthymusDNAwasinvestigatedbyusingabsorptionandemissionspectroscopy,DNAmeltingtechniques,cyclicvoltammetry,viscosityandelectro-phoresismeasurements,wherebpyis2,2’-bipyridyl,dppzisdipyrido[3,2-o:2’,3’-c]phenazine.Thebindingcompoundshowsabsorptionhypochromicity,fluorescenceenhancement,andincreasingofDNAmeltingtemperatureandthespecificviscosity.CVmeasurementshowstheshiftsinoxidation-reductionpotentialandchangeinpeakcurrentwithadditionofDNA.ThecompoundisalsoshowntobemoreefficientphotosensitisersforstrandbreaksinplasmidDNA.
简介:摘要本文主要针对CO分离装置展开分析,思考了CO分离装置的技改措施,明确了CO分离装置的技改的具体的方法和方案,希望可以为今后的CO分离装置技改工作提供参考。
简介:LocatedontheDaxing'anlingforestregionofChina'sfrontier,theDaxing'anlingForestryGroupCo.isoneofthe500nationallargesizeenterprisegroupswithatotalmanagementareaof8.225millionha.Thereare10forestrybureausunderitsjurisdiction,93000in-servicestaffandapopulationof358000.Thenetvalueoffixedassetis3.58billionyuan,Accumulativetotaloutputoftimberhasamountedto110millionm3duringthepast38years.ItsprofitsandtaxturnedovertotheStatehast...
简介:ShandongLuyangShareCo.Ltd,establishedin1984,aftermorethandoubledecades’struggleandeffort,hasbeendevelopedtobethebiggestprofessionalmanufacturerofceramicfiberproductsin
简介:JinmaInternationalExpressCo.LtdwasfoundedinBeijinginApril1993.LocatedintheHuibinBuildinginthebeautifulAsianGamesVillage,itisajointventurebetweenChinaNationalMetalsandMineralsImportandExportCorporationandU.S.AirMarketExpress,Ltd,approvedbytheMinistryofForeign
简介:TianyangPharmaceuticalsCo.Ltdisamedium-sizedenterprisewiththreesubsidiaries,theWandongVeterinaryPharmaceuticalFactory,WandongFeedAdditiveFactoryandKangfaBiologicalProductsFactory,whichproduceover120products,suchasveterinarymedicines,feedadditives,medicinesforhumanuse,biologicalproductsandmedicalpackagingproducts.Itssuppositoryproductsfillthegapsintheprovince.Thecompanycoversanareaof70,600sqmwithaworkshopfloorageof14,300sqm.IthasfixedassetsofRMB19.03millionandcirculatingfundsofRMB9.93million.Atpresent,thecompanyhas405staffandworkersincluding50people
简介:在这份报纸,活跃光学和合作焦点,分割的镜子的试验性的系统被造。第一,分割的镜子的支持结构被设计,为分割的镜子的试验性的系统满足要求被模拟验证。在这个系统,大散焦并且倾斜/付小费给分割的镜子的错误被观察密度调整并且基于等斜的干扰理论干扰穗形成对照直到defocus并且倾斜/付小费给错误在Shack-Hartmann的侦探范围。然后,Shack-Hartmann被用来测量他们,他们被致动器调整。致动器被活跃光学控制为分割的镜子的好合作焦点认识到靠近环的调整和维护。并且干扰穗被利用验证Shack-Hartmann的侦探精确。在分割的镜子调整的合作焦点以后,倾斜/付小费给剩余表面错误比RMS好;defocus剩余表面错误比RMS好。