BS 6126-1981 医用X射线照相增光屏尺寸规范
作者:标准资料网 时间:2024-04-29 07:11:19 浏览:8435
来源:标准资料网
【英文标准名称】:Specificationfordimensionsofradiographicintensifyingscreensformedicaluse
【原文标准名称】:医用X射线照相增光屏尺寸规范
【标准号】:BS6126-1981
【标准状态】:作废
【国别】:英国
【发布日期】:1981-09-30
【实施或试行日期】:1981-09-30
【发布单位】:英国标准学会(BSI)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:银幕;医用电气设备;放射器具(医学);作标记;γ射线仪;医疗放射照相术;增感屏;X射线仪;尺寸;尺寸;医疗设备
【英文主题词】:dimensions;marking;radiologyapparatus(medical);size;gamma-rayapparatus;screens(projection);electricalmedicalequipment;x-rayapparatus;medicalradiography;intensifyingscreens;medicalequipment
【摘要】:
【中国标准分类号】:C43
【国际标准分类号】:11_040_50
【页数】:12P;A4
【正文语种】:英语
【英文标准名称】:AutomaticBalers,Twinefor
【原文标准名称】:自动打包机用绳
【标准号】:ANSI/ASAES315.2-1982
【标准状态】:作废
【国别】:美国
【发布日期】:1982-12
【实施或试行日期】:
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:绳;纺织机器;双股绳打结器
【英文主题词】:twineknotters;textilemachinery;twine
【摘要】:
【中国标准分类号】:A82
【国际标准分类号】:59_120_20
【页数】:
【正文语种】:英语
【英文标准名称】:Industrialcommunicationnetworks—Fieldbusspecifications—Part4-8:Data-linklayerprotocolspecification—Type8elements
【原文标准名称】:工业通讯网络.现场总线规范.数据链层协议规范.8型元件
【标准号】:BSEN61158-4-8-2008
【标准状态】:现行
【国别】:英国
【发布日期】:2008-05-30
【实施或试行日期】:2008-05-30
【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】:总线系统;总线;电路网络;通信;控制设备;控制系统;控制工艺学;数据通信;数据链路层;数据连接系统;数据处理;数据服务;数据传送;数字的;数字数据;数字工程;数字信号;电子数据处理;电气工程;电子仪器;电子系统;现场总线;制导系统;工业的;工业设施;信息交换;信息处理;信息技术;接口(数据处理);链路层;开放系统互连;物理层;过程控制;过程控制工程;过程控制系统;协议规范;协议;信号;规范;规范(验收);传输媒质;传输协议
【英文主题词】:Bussystems;Buses(dataprocessing);Circuitnetworks;Communication;Controlequipment;Controlsystems;Controltechnology;Datacommunication;Datalinklayers;Datalinksystem;Dataprocessing;Dataservices;Datatransfer;Definition;Definitions;Digital;Digitaldata;Digitalengineering;Digitalsignals;EDP;Electricalengineering;Electronicinstruments;Electronicsystems;Englishlanguage;Fieldbus;Guidancesystems;Industrial;Industrialfacilities;Informationinterchange;Informationprocessing;Informationtechnology;INTERBUS;Interbus;Interfaces;Interfaces(dataprocessing);Linklayers;Opensystemsinterconnection;OSI;Processcontrol;Processcontrolengineering;Processcontrolsystems;Protocolspecification;Protocols;Signals;Specification;Specification(approval);Transmissionmedia;Transmissionprotocol
【摘要】:1.1GeneralThedata-linklayerprovidesbasictime-criticalmessagingcommunicationsbetweendevicesinanautomationenvironment.Thisprotocolprovidesahighly-optimizedmeansofinterchangingfixed-lengthinput/outputdataandvariable-lengthsegmentedmessagesbetweenasinglemasterdeviceandasetofslavedevicesinterconnectedinaloop(ring)topology.Theexchangeofinput/outputdataistotallysynchronousbyconfiguration,andisunaffectedbythemessagingtraffic.Devicesareaddressedimplicitlybytheirpositionontheloop.Thedeterminationofthenumber,identityandcharacteristicsofeachdevicecanbeconfigured,orcanbedetectedautomaticallyatstart-up.1.2SpecificationsThisstandardspecifiesa)proceduresforthetimelytransferofdataandcontrolinformationfromonedata-linkuserentitytoapeeruserentity,andamongthedata-linkentitiesformingthedistributeddatalinkserviceprovider;b)thestructureofthefieldbusDLPDUsusedforthetransferofdataandcontrolinformationbytheprotocolofthisstandard,andtheirrepresentationasphysicalinterfacedataunits.1.3ProceduresTheproceduresaredefinedintermsofa)theinteractionsbetweenpeerDL-entities(DLEs)throughtheexchangeoffieldbusDLPDUs;b)theinteractionsbetweenaDL-service(DLS)providerandaDLS-userinthesamesystemthroughtheexchangeofDLSprimitives;c)theinteractionsbetweenaDLS-providerandaPh-serviceproviderinthesamesystemthroughtheexchangeofPh-serviceprimitives.1.4ApplicabilityTheseproceduresareapplicabletoinstancesofcommunicationbetweensystemswhichsupporttime-criticalcommunicationsserviceswithinthedata-linklayeroftheOSIorfieldbusreferencemodels,andwhichrequiretheabilitytointerconnectinanopensystemsinterconnectionenvironment.Profilesprovideasimplemulti-attributemeansofsummarizinganimplementation’scapabilities,andthusitsapplicabilitytovarioustime-criticalcommunicationsneeds.1.5ConformanceThisstandardalsospecifiesconformancerequirementsforsystemsimplementingtheseprocedures.Thisstandarddoesnotcontainteststodemonstratecompliancewithsuchrequirements
【中国标准分类号】:N17
【国际标准分类号】:35_100_20;35_160;35_240_50
【页数】:136P.;A4
【正文语种】:英语
