ISO 19152-2012 地理信息.土地管理领域模型(LADM)
时间:2024-05-14 18:06:46 来源: 标准资料网 作者：标准资料网 阅读：9027
【英文标准名称】:Geographicinformation-LandAdministrationDomainModel(LADM)
【原文标准名称】:地理信息.土地管理领域模型(LADM)
【标准号】:ISO19152-2012
【标准状态】:现行
【国别】:国际
【发布日期】:2012-12
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/TC211
【标准类型】:()
【标准水平】:()
【中文主题词】:管理;地籍薄;数据表示;定义;域名;地球表面;大地测量学;地理信息;地理学;几何;信息;信息技术;土地;土地注册;土地登记;风景;房地产;参考模型;土壤;测绘;拓扑学;区域(行政)
【英文主题词】:Administration;Cadastre;Datarepresentation;Definitions;Domain;Earth'ssurface;Geodesy;Geographicinformation;Geography;Geometry;Information;Informationtechnology;Land;Landregister;Landregistration;Landscapes;Realestates;Referencemodel;Soils;Surveying;Topology;Zones(administration)
【摘要】:
【中国标准分类号】:A75
【国际标准分类号】:35_240_70
【页数】:118P;A4
【正文语种】:英语
【英文标准名称】:StandardTestMethodforMonotonicTensileBehaviorofContinuousFiber-ReinforcedAdvancedCeramicswithSolidRectangularCross-SectionTestSpecimensatAmbientTemperature
【原文标准名称】:室温下用实心矩形截面试样进行连续纤维增强高级陶瓷恒定抗拉性能的标准试验方法
【标准号】:ASTMC1275-2010
【标准状态】:现行
【国别】:
【发布日期】:2010
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:C28.07
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:陶瓷基体混合
【英文主题词】:ceramicmatrixcomposite
【摘要】:Thistestmethodmaybeusedformaterialdevelopment,materialcomparison,qualityassurance,characterization,anddesigndatageneration.Continuousfiber-reinforcedceramicmatrixcompositesgenerallycharacterizedbyfinegrainsized(x003C;50x03BC;m)matricesandceramicfiberreinforcementsarecandidatematerialsforstructuralapplicationsrequiringhighdegreesofwearandcorrosionresistance,andhigh-temperatureinherentdamagetolerance(thatis,toughness).Inaddition,continuousfiber-reinforcedglass(amorphous)matrixcompositesarecandidatematerialsforsimilarbutpossiblyless-demandingapplications.Althoughflexuraltestmethodsarecommonlyusedtoevaluatestrengthsofmonolithicadvancedceramics,thenon-uniformstressdistributionoftheflexurespecimeninadditiontodissimilarmechanicalbehaviorintensionandcompressionforCFCCsleadtoambiguityofinterpretationofstrengthresultsobtainedfromflexuretestsforCFCCs.Uniaxial-loadedtensilestrengthtestsprovideinformationonmechanicalbehaviorandstrengthforauniformly-stressedmaterial.Unlikemonolithicadvancedceramicswhichfracturecatastrophicallyfromasingledominantflaw,CFCCsgenerallyexperiencex201C;gracefulx201D;fracturefromacumulativedamageprocess.Therefore,thevolumeofmaterialsubjectedtoauniformtensilestressforasingleuniaxially-loadedtensiletestmaynotbeassignificantafactorindeterminingtheultimatestrengthsofCFCCs.However,theneedtotestastatisticallysignificantnumberoftensiletestspecimensisnotobviated.Therefore,becauseoftheprobabilisticnatureofthestrengthdistributionsofthebrittlematricesofCFCCs,asufficientnumberoftestspecimensateachtestingconditionisrequiredforstatisticalanalysisanddesign.StudiestodeterminetheexactinfluenceoftestspecimenvolumeonstrengthdistributionsforCFCCshavenotbeencompleted.Itshouldbenotedthattensilestrengthsobtainedusingdifferentrecommendedtensilespecimenswithdifferentvolumesofmaterialinthegagesectionsmaybedifferentduetothesevolumedifferences.Tensiletestsprovideinformationonthestrengthanddeformationofmaterialsunderuniaxialtensilestresses.Uniformstressstatesarerequiredtoeffectivelyevaluateanynon-linearstress-strainbehaviorwhichmaydevelopastheresultofcumulativedamageprocesses(forexample,matrixcracking,matrix/fiberdebonding,fiberfracture,delamination,etc.)whichmaybeinfluencedbytestingmode,testingrate,processingoralloyingeffects,orenvironmentalinfluences.Someoftheseeffectsmaybeconsequencesofstresscorrosionorsubcritical(slow)crackgrowththatcanbeminimizedbytestingatsufficientlyrapidratesasoutlinedinthistestmethod.Theresultsoftensiletestsoftestspecimensfabricatedtostandardizeddimensionsfromaparticularmaterialorselectedportionsofapart,orboth,maynottotallyrepresentthestrengthanddeformationpropertiesoftheentire,full-sizeendproductoritsin-servicebehaviorindifferentenvironments.Forqualitycontrolpurposes,resultsderivedfromstandardizedtensiletestspecimensmaybeconsideredindicativeoftheresponseofthematerialfromwhichtheyweretakenfor,givenprimaryprocessingconditionsandpost-processingheattreatments.ThetensilebehaviorandstrengthofaCFCCaredependentonitsinherentresistancetofracture,thepresenceofflaws,ordamageaccumulationprocesses,orboth.Analysisoffracturesurfacesandfractography,thoughbeyondthescopeofthistestmethod,ishighlyrecommended.1.1Thistestmethodcoversthedeterminationoftensilebehaviorincluding......
【中国标准分类号】:
【国际标准分类号】:81_060_99
【页数】:21P.;A4
【正文语种】:
【英文标准名称】:Tabularlayoutofproductproperties-Part76:Inserts,indexable
【原文标准名称】:产品特性表.第76部分:可转位刀片
【标准号】:DIN4000-76-2004
【标准状态】:作废
【国别】:德国
【发布日期】:2004-03
【实施或试行日期】:
【发布单位】:德国标准化学会(DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:数字代码;切削工具;工具;事物特性表;镶齿;事物特性
【英文主题词】:Cuttingtools;Inserts(cuttingtools);Numericcodes;Subjectcharacteristics;Tabularlayoutofarticlecharacteristics;Tabularlayoutsofarticlecharateristics;Tools
【摘要】:
【中国标准分类号】:J04
【国际标准分类号】:21_020;25_100_01
【页数】:16P;A4
【正文语种】:德语