基本信息
标准名称: | 二氧化碳灭火系统模拟试验质量要求 |
中标分类: |
船舶 >>
船舶综合 >>
船舶工艺 |
ICS分类: |
造船和海上建筑物 >>
船舶和海上建筑物综合 >>
甲板设备和装置
|
发布部门: | 中国船舶工业总公司 |
发布日期: | 1994-04-11 |
实施日期: | 1994-10-01 |
首发日期: | 1900-01-01 |
作废日期: | 1900-01-01 |
提出单位: | 中国船舶工业总公司 |
归口单位: | 中国船舶工业总公司六○三所 |
起草单位: | 上海船厂 |
起草人: | 李友根 |
出版社: | 中国标准出版社 |
出版日期: | 1994-10-01 |
页数: | 3页 |
适用范围
本标准规定了二氧化碳灭火系统模拟试验质量要求。
本标准适用于船舶二氧化碳灭火系统。
前言
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目录
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引用标准
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所属分类: 船舶 船舶综合 船舶工艺 造船和海上建筑物 船舶和海上建筑物综合 甲板设备和装置
【英文标准名称】:Informationtechnology-Multimediaframework(MPEG-21)-Part1:Vision,TechnologiesandStrategy
【原文标准名称】:信息技术.多媒体框架(MPEG-21).第1部分:展望、技术和策略
【标准号】:ISO/IECTR21000-1-2004
【标准状态】:现行
【国别】:国际
【发布日期】:2004-11
【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】:信息技术;信息交换;视频信号;编码;图像处理;多媒体;数据处理;定义;代码表示;MPEG;尺寸;计算机制图
【英文主题词】:Codedrepresentation;Computergraphics;Dataprocessing;Definition;Definitions;Encoding;Formats;Imageprocessing;Informationinterchange;Informationtechnology;MPEG;Multimedia;Videosignals
【摘要】:1.1IntroductionMPEG-21willprovideanover-archingframeworkwithinwhichmanyelementsofmultimediaarebroughttogether.Inparticular,codedrepresentationsofcontentwillbejuxtaposedwithmetadatadescriptorsandtheIntellectualPropertyManagementandProtection(IPMP)protectionthatapplytothecontent.Thisleadstoarequirementfortoolsthatcancreateandmaintain(e.g.detectorextract)anassociationbetweencontent,metadataandIPMPelementswithinMPEG-21.Toolsbasedonthetechniquesknownas“watermarking”and“fingerprinting”offerameanstoformassociationsbetweenmultimediaelementsandtherelatedinformation,wherethatassociationcanbedirectlyembeddedwithinorinferredfromthecontentitself.Furthermore,toolsbasedonwatermarkingandfingerprintingallowsuchinferencestopersistinthefaceofadaptationofthecontent.SuchtoolsaretermedPersistentAssociationTechnologies(PAT)andwithinMPEG-21thereisaneedtoassessandevaluatethesetools.ThisreportsetsoutaprocessandplanforevaluatingPAT.ItdoesnotprovideinformationonhowtonormativelyinterpretresultsoftestsconductedinaccordancewiththisTechnicalReportastheselectionofasetofspecificevaluationproceduresdependsontheapplicationscenario.ThisTechnicalReportfocusesontheevaluationoftwoclassesoftechnology:watermarksandfingerprints(seeDefinitionsinSubclause2.1)whenappliedtoAudiocontent.ItisexpectedthatthescopeofthisTechnicalReportwillbeenhancedinfuturetocoverothermediatypesincludingvideo,stillpicturesandtext.ThisTechnicalReportdescribesevaluationmethodologiesforonlysomeofthecharacteristicsofthesetechnologies.Inparticular,itdoesnotattempttodefinemethodologiesforevaluatingtheresistanceofthesetechnologiestodeliberateattackontheassociation.FurtherdetailiscontainedinClause7.1.2BackgroundtoISO/IECTR21000-11RecognisingthatthestandardisationofPersistentAssociationTechnologies(PAT)isnotcurrentlythoughttobeviableinthecontextofMPEG-21andthewiderinternationalstandardisationcommunity,ISO/IECJTC1/SC29/WG11(MPEG)examinedoptionswhichwouldallowittoassisttheadoptionofPATbyindustry.AcallforRequirementsonPATwasissuedandgeneratednumerousresponses.TheanalysisoftheseresponseshasallowedWG11tounderstandthecharacteristicsofPATthatmayberequired.ThisanalysisalsoshowedbothaneedandapossibilitytoestablishaconsensusapproachtotheEvaluationofsuchtechnologieswhichwouldbeusefulinselectingappropriatetechnologiesforparticularapplications.1.3OrganisationoftheDocumentISO/IEC21000-11containsnineclauses.Clauses1and2setoutthescopeofthisTechnicalReport,providedefinitionfortermsandalistofabbreviationsusedandnotused.Clause3thenfamiliarisesthereaderfourdifferentpersistentassociationtechnologyparadigmsbyprovidingareferencearchitectureforeachofthediscussedPATparadigms1).Clauses4and5containshortusecasescenariosforhowtousePersistentAssociationTechnologies,andhowtoevaluatesuchtechnologies.Clause6thenliststhesevencharacteristicparametersofPATthatcanbeusedtoevaluatesuchtechnologies.BeforethemaindiscussionontheevaluationmethodologyisdiscussedinClause8,Clause7containsadiscussiononissuessuchassecurityandmaliciousattacks.
【中国标准分类号】:L81
【国际标准分类号】:35_040
【页数】:38P;A4
【正文语种】:英语