ANSI/ASTM D685-1993 测试用纸和纸产品的调整惯例

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Product Code:SAE ARP1052
Title:Selection Criteria for Internal Combustion Engines Used in Ground Support Equipment
Issuing Committee:Age-2c Vehicle Maintenance And Aircraft Servicing Committee
Scope: This SAE Recommended Practice (ARP) is intended as a guide toward standard practice and is subject to change to keep pace with experience and technical advances.The purpose of this document is to establish a guideline for the selection of prime movers for use in aircraft ground support equipment. This document is recommended for use by those engaged in the design, selection, or purchase of ground support equipment.This document is applicable to both four-stroke and two-stroke spark ignition and compression ignition engines.
Rationale: This SAE Recommended Practice (ARP) is intended as a guide toward standard practice and is subject to change to keep pace with experience and technical advances.The purpose of this document is to establish a guideline for the selection of prime movers for use in aircraft ground support equipment. This document is recommended for use by those engaged in the design, selection, or purchase of ground support equipment.This document is applicable to both four-stroke and two-stroke spark ignition and compression ignition engines.【英文标准名称】:Informationtechnology-Enhancedcommunicationstransportprotocol:SpecificationofQoSmanagementforsimplexmulticasttransport
【原文标准名称】:信息技术.增强通信传输协议:单工多点传送用QoS管理规范
【标准号】:ISO/IEC14476-2-2003
【标准状态】:现行
【国别】:国际
【发布日期】:2003-12-15
【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/SC6
【标准类型】:()
【标准水平】:()
【中文主题词】:定义;电路网络;信息技术;数据处理;传送层;传送服务;开式系统;传送协议;数据传送;传播学;数据交换;通信系统;信息交换
【英文主题词】:
【摘要】:ThisRecommendation|InternationalStandardisanintegralpartofITU-TRecsX.606.X|ISO/IEC14476"ECTP:EnhancedCommunicationsTransportProtocol",whichisafamilyofProtocolSpecificationsdesignedtosupportmulticasttransportservices.ITU-TRec.X.606|ISO/IEC14476-1providesaspecificationofvariousprotocoloperationsforsimplexmulticasttransport.Thoseprotocoloperationsincludeconnectionmanagementsuchasconnectioncreation/terminationandconnectionpause/resume,membershipmanagementsuchaslatejoin,userleaveandmembershiptracking,anderrorcontrolformulticastdatatransportsuchaserrordetectionandrecovery.ThispartoftheRecommendation|InternationalStandardprovidesaspecificationofQoSmanagementforaccomplishingdesirablequalityofserviceinsimplexmulticasttransportconnection.ThisSpecificationdescribesthefollowingQoSmanagementoperations:a)QoSnegotiationForQoSnegotiation,thisSpecificationassumesthatadesiredQoSlevelformulticastapplicationservicecanbeexpressedintermsofasetofQoSparameters.QoSnegotiationisperformedviaexchangeofcontrolpacketsbetweensenderandreceivers.SenderproposesthetargetvaluesofQoSparametersobtainedfromtheapplication'srequirements,andtheneachreceivercanproposemodifiedvaluesbasedonitssystemand/ornetworkcapacity.Senderarbitratesthemodifiedvaluesproposedbyreceivers.TargetvaluesforQoSparameterscanbeusedasinputparametersforreservationofnetworkresources.b)QoSmonitoringQoScontrolinECTPisbasedonfeedbackofcontrolpacketsfromreceivers.Thefeedbackmessagesfromreceiversenablethesendertokeeptrackofthenumberofactivereceiversandalsotomonitortheconnectionstatusformulticastdatatransport.QoSmonitoringisdesignedtoallowthesendertodiagnosetheconnectionstatusintermsofQoSparametervalues,andthustotakethenecessaryactionsformaintainingtheconnectionstatusatadesiredQoSlevel.Themonitoredconnectionstatuswillbereportedtotheapplicationatthesenderside.Theinformationconveyedcouldprovidestatisticsusefulforbillingpurposes,forexample.c)QoSmaintenanceBasedonfeedbackinformationfromreceivers,thesendertakesoneormoreactionssoastomaintaintheconnectionstatusatadesiredQoSlevel.TheseQoSmaintenanceactionsincludeadjustmentofthedatatransmissionrate,connectionpauseandresume,troublemakerejectionandconnectionterminationoperations.TheseQoSmonitoringandmaintenancefunctions,basedonmonitoredparameterstatus,providerate-basedcongestioncontrol.ThisRecommendation|InternationalStandardisanintegralpartofITU-TRecsX.606.X|ISO/IEC14476,whichhas6parts.Alloftheprotocolcomponents,includingpacketformatsandprotocolproceduresspecifiedinITU-TRec.X.606|ISO/IEC14476-1,arealsovalidinthisRecommendation|InternationalStandard.
【中国标准分类号】:M11
【国际标准分类号】:35_100_40
【页数】:43P.;A4
【正文语种】:英语