NF C74-120-1995 X射线诊断设备.测定特性的放射条件
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【英文标准名称】:MedicaldiagnosticX-rayequipment.Radiationconditionsforuseinthedeterminationofcharacteristics.
【原文标准名称】:X射线诊断设备.测定特性的放射条件
【标准号】:NFC74-120-1995
【标准状态】:现行
【国别】:法国
【发布日期】:1995-04-01
【实施或试行日期】:1995-04-05
【发布单位】:法国标准化协会(FR-AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:X射线仪;X射线设备;医疗放射照相术;医学科学;;光线疗法;诊断设备;辐射学;测定;医疗设备;辐射防护;电医学;医疗技术学;辐射;特性
【英文主题词】:Characteristics;Determination;Diagnosis;Diagnosticequipment;Electricalengineering;Electromedicine;Irradiationcondition;Medicalequipment;Medicalradiography;Medicalsciences;Medicaltechnology;Phototherapy;Radiation;Radiationprotection;Radiology;X-rayapparatus;X-rayequipment;X-rayplants;X-rays
【摘要】:
【中国标准分类号】:C43
【国际标准分类号】:11_040_50
【页数】:36P.;A4
【正文语种】:英语
【英文标准名称】:Compositestationpostinsulatorsforsubstationswitha.c.voltagesgreaterthan1000Vupto245kV-Definitions,testmethodsandacceptancecriteria
【原文标准名称】:交流电压大于1000V小于等于245KV的复合电站支柱绝缘子.定义、测试方法和验收标准
【标准号】:IEC62231-2006
【标准状态】:现行
【国别】:国际
【发布日期】:2006-04
【实施或试行日期】:
【发布单位】:国际电工委员会(IX-IEC)
【起草单位】:IEC/SC36C
【标准类型】:()
【标准水平】:()
【中文主题词】:验收(鉴定);交流电压;断裂荷载;定义;设计;电气工程;外壳;故障;形状公差;绝缘子;负荷;作标记;材料;机械试验;针式绝缘子;合格试验;常规检验;样品试验;应力;拉力;试验;位置公差;电压测量
【英文主题词】:Acceptance;Acceptance(approval);Acceptancespecification;Acceptancetests;Alternatingvoltages;Breakingload;Definitions;Design;Electricalengineering;Enclosures;Failure;Failurecriterion;Formtolerances;Insulators;Loading;Marking;Materials;Mechanicaltesting;Pininsulators;Qualificationtests;Routinechecktests;Sampletests;Stress;Tensileforce;Testing;Tolerancesofposition;Voltagemeasurement
【摘要】:ThisInternationalStandardappliestocompositestationpostinsulatorsconsistingofaloadbearingcylindricalinsulatingsolidcoremadeofresinimpregnatedfibres,ahousing(outsidetheinsulatingsolidcore)madeofelastomermaterial(e.g.siliconeorethylene-propylene)andendfittingsattachedtotheinsulatingcore.Compositestationpostinsulatorscoveredbythisstandardaresubjectedtocantilever,torsion,tensionandcompressionloads.Theyareintendedforsubstationswitha.c.voltagesgreaterthan1000Vupto245kV.
【中国标准分类号】:F21
【国际标准分类号】:29_080_10
【页数】:71P.;A4
【正文语种】:英语
【英文标准名称】:Informationtechnology-FibreDistributedDataInterface(FDDI)-Part6:StationManagement(SMT)
【原文标准名称】:信息技术光纤分布式数据接口(FDDI)第6部分:站管理
【标准号】:ISO/IEC9314-6-1998
【标准状态】:现行
【国别】:国际
【发布日期】:1998-08
【实施或试行日期】:
【发布单位】:国际标准化组织(ISO)
【起草单位】:ISO/IECJTC1
【标准类型】:()
【标准水平】:()
【中文主题词】:网络互连;接口;光纤分布数据接口(FIBERDISTRIBUTEDDATAINTERFACE);信息技术;界面;光学纤维;数据接口;控制规程;定义;数据传输;信息交换;光波导;数据处理;通信规程
【英文主题词】:
【摘要】:ThispartofISO/IEC9314specifiestheStationManagement(SMT)fortheFibreDistributedDataInterface(FDDI).FDDIprovidesahighbandwidth(100megabitspersecond)generalpurposeinterconnectionamongcomputersandperipheralequipmentusingopticalfibreasthetransmissionmediuminaringconfiguration.FDDIcanbeconfiguredtosupportasustainedtransferrateofapproximately80megabits(10megabytes)persecond.TheuseofdualattachmentstationswithdualMACsallowstheseratestobedoubledunderthecircumstanceofafault-freeFDDIring.FDDIestablishestheconnectionamongmanystations(nodes)distributedoverdistancesofseveralkilometresinextent.DefaultvaluesforFDDIwerecalculatedonthebasisof1000physicalconnectionsandatotalfibrepathlengthof200km.TheFDDIconsistsofa)APhysicalLayer(PL),whichprovidesthemedium,connectors,opticalbypassing,anddriver/receiverrequirements.PLalsodefinesencode/decodeandclockrequirementsasrequiredforframingthedatafortransmissiononthemediumortothehigherlayersoftheFDDI.ForthepurposesofthispartofISO/IEC9314,referencestothePLaremadeintermsofthePhysicalLayerprotocol(PHY)andthePhysicalLayerMediaDependent(PMD)entitieswhicharetheupperandlowersublayersofPL,respectively.b)ADataLinkLayer(DLL)whichcontrolstheaccessingofthemediumandthegenerationandverificationofframechecksequencestoassuretheproperdeliveryofvaliddatatothehigherlayers.DLLalsoconcernsitselfwiththegenerationandrecognitionofdeviceaddressesandthepeer-to-peerassociationswithintheFDDInetwork.ForthepurposesofthispartofISO/IEC9314,referencestotheDLLaremadeintermsoftheMediaAccessControl(MAC)entitywhichisthelowestsublayerofDLL.c)AStationManagement(SMT)standard,thispartofISO/IEC9314,whichprovidesthecontrolnecessaryatthestation(node)leveltomanagetheprocessesunderwayinthevariousFDDIlayerssuchthatastationmayworkcooperativelyasapartofanFDDInetwork.SMTshallprovideservicessuchasconnectionmanagement,stationinsertionandremoval,stationinitialization,configurationmanagement,faultisolationandrecovery,communicationsprotocolforexternalauthority,schedulingpolicies,andcollectionofstatistics.ThedefinitionofSMTascontainedhereinincludesthesetofservicesthatitprovidesfor,andreceivesfrom,theotherentitiesthatarecontainedwithinanode.WithinSMTresidesbothknowledgeoftheuniquenessofthisnodeandthecurrentnetworkstructuretotheextentthatthisnode'sfunctionisaffected.ThesetofInternationalStandardsforFDDI,ISO/IEC9314,specifiestheinterfaces,functionsandoperationsnecessarytoinsureinteroperabilitybetweenconformingFDDIimplementations.ThispartofISO/IEC9314isafunctionaldescription.Conformingimplementationsmayemployanydesigntechniquewhichdoesnotviolateinteroperability.
【中国标准分类号】:L78
【国际标准分类号】:33_180_01;35_110
【页数】:194P;A4
【正文语种】:英语
