BS ISO 15836-2003 信息和文献工作.都柏林核心元数据元素集

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【英文标准名称】:Informationanddocumentation-TheDublinCoremetadataelementset
【原文标准名称】:信息和文献工作.都柏林核心元数据元素集
【标准号】:BSISO15836-2003
【标准状态】:作废
【国别】:英国
【发布日期】:2003-12-11
【实施或试行日期】:2003-12-11
【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】:信息技术;规范(验收);电气工程;标准化;元数据;特性;数据元;元件;数据处理;描述;电子产品;多媒体;定义;因特网;都柏林核心;电子工程
【英文主题词】:Dataelements;Dataprocessing;Definitions;Descriptions;DublinCore;Electricalengineering;Electronicengineering;Electronicproducts;Elements;Informationtechnology;Internet;Metadata;Multimedia;Properties;Specification(approval);Standardization;Standardizations
【摘要】:TheDublinCoremetadataelementsetisastandardforcross-domaininformationresourcedescription.Hereaninformationresourceisdefinedtobeanythingthathasidentity;thisisthedefinitionusedinInternetRFC2396,“UniformResourceIdentifiers(URI):GenericSyntax,”byTimBerners-Leeetal.ForDublinCoreapplicationsaresourcewilltypicallybeanelectronicdocument.Thisstandardisfortheelementsetonly,whichisgenerallyusedinthecontextofaspecificprojectorapplication.Localorcommunitybasedrequirementsandpoliciesmayimposeadditionalrestrictions,rules,andinterpretations.Itisnotthepurposeofthisstandardtodefinethedetailedcriteriabywhichtheelementsetwillbeusedwithspecificprojectsandapplications.ThisstandardsupersedesInternetRFC2413,whichwasthefirstpublishedversionoftheDublinCore.
【中国标准分类号】:A14
【国际标准分类号】:35_240_99
【页数】:14P;A4
【正文语种】:英语


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【英文标准名称】:Communicationcables-Specificationsfortestmethods-Electricaltestmethods-Characteristicimpedance,inputimpedance,returnloss
【原文标准名称】:通信电缆.试验方法规范.电气试验方法.特性阻抗、输入阻抗、回路损耗
【标准号】:BSEN50289-1-11-2002
【标准状态】:现行
【国别】:英国
【发布日期】:2002-02-06
【实施或试行日期】:2002-02-06
【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】:电容测量;电气试验;速度测量;性能试验;介电强度试验;衰减;电学测量;通信传输线路;电缆;阻抗测量;数字信号;模拟信号;电磁兼容性;电阻测量;通信电缆;电绝缘;直流电流;导电体
【英文主题词】:Analogue;Analoguesignals;Cables;Communicationcables;Damping;Definitions;Digital;Digitalsignals;Electriccables;Electricalengineering;Electricalpropertiesandphenomena;Electricalresistance;Electricaltesting;Impedance;Inputimpedance;Marking;Measuringtechniques;Resistance;Returnloss;Specification;Telecommunication;Testing
【摘要】:TobereadinconjunctionwithBSEN50289-1-1:2001
【中国标准分类号】:K13
【国际标准分类号】:33_120_10
【页数】:12P;A4
【正文语种】:英语


【英文标准名称】:StandardGuideforDescribingtheFunctionalityofaGround-WaterModelingCode
【原文标准名称】:描述地下水成型准则功能的标准指南
【标准号】:ASTMD6033-1996(2002)
【标准状态】:现行
【国别】:
【发布日期】:1996
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:D18.21
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:
【英文主题词】:codeselection;ground-water;ground-watermodeling;modeltypes;softwarefunctionality;
【摘要】:Ground-watermodelinghasbecomeanimportantmethodologyinsupportoftheplanninganddecision-makingprocessesinvolvedinground-watermanagement.Ground-watermodelsprovideananalyticalframeworkforobtaininganunderstandingofthemechanismsandcontrolsofground-watersystemsandtheprocessesthatinfluencetheirquality,especiallythosecausedbyhumaninterventioninsuchsystems.Increasingly,modelsareanintegralpartofwaterresourcesassessment,protectionandrestorationstudies,andprovideessentialandcost-effectivesupportforplanningandscreeningofalternativepolicies,regulations,andengineeringdesignsaffectinggroundwater.3Therearemanydifferentground-watermodelingcodesavailable,eachwiththeirowncapabilities,operationalcharacteristics,andlimitations.Ifmodelingisconsideredforaproject,itisimportanttodetermineifaparticularcodeisappropriateforthatproject,orifacodeexiststhatcanperformthesimulationsrequiredintheproject.Inpractice,itisoftendifficulttodeterminethecapabilities,operationalcharacteristics,andlimitationsofaparticularground-watermodelingcodefromthedocumentation,orevenimpossiblewithoutactualrunningthecodeforsituationsrelevanttotheprojectforwhichacodeistobeselectedduetoincompleteness,poororganization,orincorrectnessofacode’documentation.4Systematicandcomprehensivedescriptionofacode’featuresbasedonaninformativeclassificationprovidesthenecessarybasisforefficientselectionofaground-watermodelingcodeforaparticularprojectorforthedeterminationthatnosuchcodeexists.Thisguideisintendedtoencouragecorrectness,consistency,andcompletenessinthedescriptionofthefunctions,capabilities,andlimitationsofanexistingground-watermodelingcodethroughtheformulationofacodeclassificationsystemandthepresentationofcodedescriptionguidelines.1.1Thisguidepresentsasystematicapproachtotheclassificationanddescriptionofcomputercodesusedinground-watermodeling.Duetothecomplexnatureoffluidflowandbioticandchemicaltransportinthesubsurface,manydifferenttypesofground-watermodelingcodesexist,eachhavingspecificcapabilitiesandlimitations.Determiningthemostappropriatecodeforaparticularapplicationrequiresathoroughanalysisoftheproblemathandandtherequiredandavailableresources,aswellasadetaileddescriptionofthefunctionalityofpotentiallyapplicablecodes.1.2Typically,ground-watermodelingcodesarenonparameterizedmathematicaldescriptionsofthecausalrelationshipsamongselectedcomponentsoftheaqueoussubsurfaceandthechemicalandbiologicalprocessestakingplaceinthesesystems.Manyofthesecodesfocusonthepresenceandmovementofwater,dissolvedchemicalspeciesandbiota,eitherunderfullyorpartiallysaturatedconditions,oracombinationoftheseconditions.Othercodeshandlethejointmovementofwaterandotherfluids,eitherasagasoranonaqueousphaseliquid,orboth,andthecomplexphasetransfersthatmighttakeplacebetweenthem.Somecodeshandleinteractionsbetweentheaqueoussubsurface(forexample,aground-watersystem)andothercomponentsofthehydrologicsystemorwithnonaqueouscomponentsoftheenvironment.1.3Theclassificationprotocolisbasedonananalysisofthemajorfunctiongroupspresentinground-watermodelingcodes.Additionalcodefunctionsandfeaturesmaybeidentifiedindeterminingthefunctionalityofacode.Acompletedescriptionofacode'sfunctionalitycontainsthedetailsnecessarytounderstandthecapabilitiesandpotentialuseofaground-watermodelingcode.Tablesareprovidedwithexplanat......
【中国标准分类号】:D04
【国际标准分类号】:13_060_10
【页数】:10P.;A4
【正文语种】: