MIL-HDBK-5H

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MIL-HDBK-5H, MILITARY HANDBOOK: METALLIC MATERIALS AND ELEMENTS FOR AEROSPACE VEHICLE STRUCTURES (1 DEC 1998) (44 MB DOWNLOAD)., This document contains design information on the strength properties of metallic materials and elements for aerospace vehicle structures. All information and data contained in this handbook have been coordinated with the Air Force, Army, Navy, Federal Aviation Administration, and industry prior to publication, and are being maintained.

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【英文标准名称】:Specificationformarineguardrails,stanchions,etc-Stormrails(exterior)
【原文标准名称】:船舶护栏、立柱等规范.第3部分:风暴扶手(外部用)
【标准号】:BSMA40-3-1975
【标准状态】:作废
【国别】:英国
【发布日期】:1975-04-30
【实施或试行日期】:1975-04-30
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:扶手;设计;海上安全;安全装置;水路运输工程;甲板设备;外部;撑架;水路运输工程部件;尺寸
【英文主题词】:Brackets;Deckequipment;Design;Dimensions;External;Hand-rails;Marinesafety;Safetydevices;Watertransportengineering;Watertransportengineeringcomponents
【摘要】:Materialsandconstruction.
【中国标准分类号】:U26
【国际标准分类号】:47_020_50
【页数】:4P;A4
【正文语种】:英语


【英文标准名称】:Digitaldatacommunicationsformeasurementandcontrol-Fieldbusforuseinindustrialcontrolsystems-Applicationlayerservicedefinition
【原文标准名称】:测量和控制用数字数据通信.工业控制系统用现场总线.应用层服务定义
【标准号】:BSEN61158-5-2004
【标准状态】:作废
【国别】:英国
【发布日期】:2004-08-31
【实施或试行日期】:2004-08-31
【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】:数据通信;传播学;数字工程;数据传输线;数据服务;操作技术;工业设施;工业的;数字数据;信息技术;应用层;服务设施;电子仪器;制导系统;开放系统互连;开放系统互连;传输媒质;电气工程;计算机控制;数据传送;数据连接系统;总线系统;使用;电子数据处理;规范(验收);数据总线;计算机应用;数据处理;物理层;规范;控制;控制系统;电路网络;信息交换;控制设备;现场总线;总线;数据传输控制规程;过程控制工程;电子系统;控制工艺学;定义;数字的;接口(数据处理);数据网络;信息处理;数据交换
【英文主题词】:Applicationlayer;Applications;Bussystems;Buses(dataprocessing);Circuitnetworks;Communication;Computerapplications;Computerizedcontrol;Control;Controlequipment;Controlsystems;Controltechnology;Databus;Datacommunication;Dataexchange;Dataline;Datalinksystem;Datanetwork;Dataprocessing;Dataservices;Datatransfer;Datatransmissioncontrolprocedures;Definition;Definitions;Digital;Digitaldata;Digitalengineering;EDP;Electricalengineering;Electronicinstruments;Electronicsystems;Fieldbus;Guidancesystems;Industrial;Industrialfacilities;Informationinterchange;Informationprocessing;Informationtechnology;Interfaces(dataprocessing);Opensystemsinterconnection;Operationaltechniques;OSI;Physicallayers;Processcontrolengineering;Services;Specification;Specification(approval);Transmissionmedia
【摘要】:ThefieldbusApplicationLayer(FAL)providesuserprogramswithameanstoaccessthefieldbuscommunicationenvironment.Inthisrespect,theFALcanbeviewedasa"windowbetweencorrespondingapplicationprograms."TheFALisanApplicationLayerCommunicationStandarddesignedtosupporttheconveyanceoftime-criticalandnon-time-criticalapplicationrequestsandresponsesamongdevicesinanautomationenvironment.Theterm"time-critical"isusedtorepresentthepresenceofanapplicationtime-window,withinwhichoneormorespecifiedactionsarerequiredtobecompletedwithsomedefinedlevelofcertainty.ThisstandardspecifiesthestructureandservicesoftheIECfieldbusApplicationLayer.ItisspecifiedinconformancewiththeOSIBasicReferenceModel(ISO/IEC7498)andtheOSIApplicationLayerStructure(ISO/IEC9545).FALservicesandprotocolsareprovidedbyFALapplication-entities(AE)containedwithintheapplicationprocesses.TheFALAEiscomposedofasetofobject-orientedApplicationServiceElements(ASEs)andaLayerManagementEntity(LME)thatmanagestheAE.TheASEsprovidecommunicationservicesthatoperateonasetofrelatedapplicationprocessobject(APO)classes.OneoftheFALASEsisamanagementASEthatprovidesacommonsetofservicesforthemanagementoftheinstancesofFALclasses.ThispartofIEC61158specifiesinteractionsbetweenremoteapplicationsintermsof-anabstractmodelfordefiningapplicationresources(objects)capableofbeingmanipulatedbyusersviatheuseofFALServices,-theprimitives(interactionsbetweentheFALandtheFALuser)associatedwitheachFALService;-theparametersassociatedwitheachprimitive;-theinterrelationshipbetweenandthevalidsequencesoftheprimitivesforeachservice.Severalmodelsofcommunicationsarespecifiedinthisdocument.Eachmodelisspecifedasacommunciation"type".Eachtypehasitsownseparateclauseinthedocument.Althoughtheseservicesspecify,fromtheperspectiveofapplications,howrequestandresponsesareissuedanddelivered,theydonotincludeaspecificationofwhattherequestingandrespondingapplicationsaretodowiththem.Thatis,thebehavioralaspectsoftheapplicationsarenotspecified;onlyadefinitionofwhatrequestsandresponsestheycansend/receiveisspecified.ThispermitsgreaterflexibilitytotheFALusersinstandardizingsuchobjectbehavior.Inadditiontotheseservices,somesupportingservicesarealsodefinedinthisstandardtoprovideaccesstotheFALtocontrolcertainaspectsofitsoperation.
【中国标准分类号】:N17
【国际标准分类号】:35_100_70;35_160;35_240_50
【页数】:1290P.;A4
【正文语种】:英语