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【英文标准名称】:Aerospaceseries-Nuts,hexagon,plain,reducedheight,reducedacrossflats,inheatresistingsteel,passivated-Classification:600MPa(atambienttemperature)/650°C;GermanversionEN4069:1996
【原文标准名称】:航空航天系列.钝化耐高温钢制小板手开口度平面六角螺母.等级:600MPa(室温)/650℃
【标准号】:EN4069-1996
【标准状态】:现行
【国别】:
【发布日期】:1996-03
【实施或试行日期】:
【发布单位】:欧洲标准学会(EN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:作标记;特性;浅;钢;分类系统;航天运输;螺母;航空运输;名称与符号;飞机结构;表面处理;尺寸;耐热材料;钝化;飞行器;六角螺母;航空航天运输;高温;公差(测量)
【英文主题词】:Aerospacetransport;Airtransport;Aircraft;Aircraftconstructions;Classificationsystems;Designations;Dimensions;Heat-resistantmaterials;Hexagonnuts;Hightemperature;Marking;Nuts;Passivated;Properties;Shallow;Spacetransport;Steels;Surfacetreatment;Tolerances(measurement)
【摘要】:
【中国标准分类号】:V20
【国际标准分类号】:49_030_30
【页数】:8P.;A4
【正文语种】:英语


【英文标准名称】:Informationtechnology-Radiofrequencyidentificationforitemmanagement-Part6:Parametersforairinterfacecommunicationsat860MHzto960MHz
【原文标准名称】:信息技术.项目管理的射频识别.第6部分:860MHz至960MHz空中接口通信用参数
【标准号】:ISO/IEC18000-6-2004
【标准状态】:作废
【国别】:国际
【发布日期】:2004-08
【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/SC31
【标准类型】:()
【标准水平】:()
【中文主题词】:贸易;空中接口;编码;编码;信息技术;代码;协议;编码(数据转换);变换;数据表示;定义;数据格式;自动;识别;实体分配管理;射频;频率;项目;数据采集;符号;高频;数据处理;传播方式;频带;描述;传播学;目的;交替使用性;射频信号;字符识别;货物交换;规范(验收);信息交换;数据交换;高频工程;数据传送;规范;代码表示;相互操作;管理
【英文主题词】:Airinterfaces;Automatic;Bandoffrequencies;Characterrecognition;Codedrepresentation;Codes;Coding;Coding(dataconversion);Communication;Communicationprocesses;Conversion;Dataacquisition;Dataexchange;Dataformats;Dataprocessing;Datarepresentation;Datatransfer;Definitions;Descriptions;Encoding;Exchangeofgoods;Frequencies;Goodtrade;Highfrequencies;High-frequencyengineering;Identification;Informationinterchange;Informationtechnology;Interoperability;Item;Labellings;Management;Objects;Physicaldistributionmanagement;Protocols;Radiofrequencies;Radio-frequencysignals;Specification;Specification(approval);Symbols
【摘要】:ThispartofISO/IEC18000definestheairinterfaceforradiofrequencyidentification(RFID)devicesoperatinginthe860MHzto960MHzIndustrial,Scientific,andMedical(ISM)bandusedinitemmanagementapplications.ItspurposeistoprovideacommontechnicalspecificationforRFIDdevicesthatmaybeusedbyISOcommitteesdevelopingRFIDapplicationstandards.ThispartofISO/IEC18000isintendedtoallowforcompatibilityandtoencourageinter-operabilityofproductsforthegrowingRFIDmarketintheinternationalmarketplace.ThispartofISO/IEC18000definestheforwardandreturnlinkparametersfortechnicalattributesincluding,butnotlimitedto,operatingfrequency,operatingchannelaccuracy,occupiedchannelbandwidth,maximumEIRP,spuriousemissions,modulation,dutycycle,datacoding,bitrate,bitrateaccuracy,bittransmissionorder,andwhereappropriateoperatingchannels,frequencyhoprate,hopsequence,spreadingsequence,andchiprate.Itfurtherdefinesthecommunicationsprotocolusedintheairinterface.ThispartofISO/IEC18000containsonemodewithtwotypes.Bothtypesuseacommonreturnlinkandarereadertalksfirst.TypeAusesPulseIntervalEncoding(PIE)intheforwardlink,andanadaptiveALOHAcollisionarbitrationalgorithm.TypeBusesManchesterintheforwardlinkandanadaptivebinarytreecollisionarbitrationalgorithm.Thedetailedtechnicaldifferencesbetweenthetwotypesareshownintheparametertables.
【中国标准分类号】:L70
【国际标准分类号】:35_040;35_240_60
【页数】:134P;A4
【正文语种】:英语