NF P90-109-1993 运动场.弹性球.地面球相互作用测量方法

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【英文标准名称】:Informationtechnology-Codingofaudio-visualobjects-Part15:AdvancedVideoCoding(AVC)fileformat
【原文标准名称】:信息技术.视听对象的编码.第15部分:高级视频编码(AVC)文档格式
【标准号】:ISO/IEC14496-15-2010
【标准状态】:现行
【国别】:国际
【发布日期】:2010-06
【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/IECJTC1/SC29
【标准类型】:()
【标准水平】:()
【中文主题词】:声信号;代码表示;编码(数据转换);数据交换;数据格式;数据处理;定义;编码;文件结构;(数据)格式;功能性;图形数据处理;图像处理;信息交换;信息技术;交互式的;MPEG;多媒体;视频信号
【英文主题词】:Acousticsignals;Codedrepresentation;Coding(dataconversion);Dataexchange;Dataformats;Dataprocessing;Definitions;Encoding;Filestructure;Formats;Functionality;Graphicdataprocessing;Imageprocessing;Informationinterchange;Informationtechnology;Interactive;MPEG;Multimedia;Videosignals
【摘要】:ThispartofISO/IEC14496specifiesthestorageformatforAVC(ISO/IEC14496-10)videostreams.ThestorageofAVCcontentusestheexistingcapabilitiesoftheISObasemediafileformatbutalsodefinesextensionstosupportthefollowingfeaturesoftheAVCcodec.?Switchingpictures:toenableswitchingbetweendifferentcodedstreamsandsubstitutionofpictureswithinthesamestream.?Sub-sequencesandlayers:providesastructuringofthedependenciesofagroupofpicturestoprovideforaflexiblestreamstructure(e.g.intermsoftemporalscalabilityandlayering).?Parametersets:thesequenceandpictureparametersetmechanismdecouplesthetransmissionofinfrequentlychanginginformationfromthetransmissionofcodedmacroblockdata.Eachslicecontainingthecodedmacroblockdatareferencesthepictureparametersetcontainingitsdecodingparameters.Inturn,thepictureparametersetreferencesasequenceparametersetthatcontainssequenceleveldecodingparameterinformation.ThefileformatforstorageofSVCcontent,asdefinedinAnnexesAtoE,andthefileformatforstorageofMVCcontent,asdefinedinAnnexesBtoF,usetheexistingcapabilitiesoftheISObasemediafileformatandtheplainAVCfileformat(i.e.thefileformatspecifiedinClauses2to5notincludingSVCandMVCsupportsspecifiedinAnnexesAtoF).Inaddition,thefollowingnewextensions,amongothers,tosupportSVC-and/orMVC-specificfeaturesarespecified.?Scalableormultiviewgrouping:astructuringandgroupingmechanismtoindicatetheassociationofNALunitswithdifferenttypesandhierarchylevelsofscalability.?Aggregator:astructuretoenableefficientscalablegroupingofNALunitsbychangingirregularpatternsofNALunitsintoregularpatternsofaggregateddataunits.?Extractor:astructuretoenableefficientextractionofNALunitsfromothertracksthantheonecontainingthemediadata.?Temporalmetadatastatements:structuresforstoringtime-alignedinformationofmediasamples.?AVCcompatibility:aprovisionforstoringanSVCorMVCbitstreaminanAVCcompatiblemanner,suchthattheAVCcompatiblebaselayercanbeusedbyanyplainAVCfileformatcompliantreader.
【中国标准分类号】:L71;L64
【国际标准分类号】:35_040
【页数】:96P.;A4
【正文语种】:英语


【英文标准名称】:Advancedtechnicalceramics-Ceramiccomposites-Determinationofelasticpropertiesbyresonantbeammethodupto2000°C
【原文标准名称】:高级工业陶瓷.陶瓷复合材料.2000℃共振光束法测定弹性特性
【标准号】:BSEN15335-2007
【标准状态】:现行
【国别】:英国
【发布日期】:2007-07-31
【实施或试行日期】:2007-07-31
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:陶瓷和玻璃技术;陶瓷;复合材料;纤维;数学计算;机械测试;弹性模量;增强的材料;共振;特种陶瓷;振动
【英文主题词】:Advancedtechnicalceramics;Ceramics;Compactmaterials;Compositematerials;Definitions;Elasticity;Elongation;Fibrereinforced;Materials;Materialstesting;Mathematicalcalculations;Modulusofelasticity;Orthotropic;Properties;Resonancemethods;Shearmodulus;Stress;Symmetry;Tensilestrength;Tensiletesting;Testing
【摘要】:ThisEuropeanStandardspecifiestheresonantbeammethodforthedeterminationofthedynamicelasticmodulioffibrereinforcedceramicmatrixcompositesfrom20°Cupto2000°Cinvacuumorinertatmosphere.TheYoung′smoduliandtheshearmodulifordifferentorientationswithrespecttothemainaxesofsymmetryofthecompositecanbeobtained.Thisdocumentappliestoceramicmatrixcompositeswithfibrereinforcement:shortfibres,unidirectional(1D),bidirectional(2D),andtridirectional(xD,with2【中国标准分类号】:Q32
【国际标准分类号】:81_060_30
【页数】:32P;A4
【正文语种】:英语