DIN EN 301705-2004 数字蜂窝式远程通信系统(2+相位).自适应多速率(AMR)语音话务信道用丢失帧的替换和噪声抑制
时间:2024-05-17 14:48:44 来源: 标准资料网 作者：标准资料网 阅读：8749
【英文标准名称】:Digitalcellulartelecommunicationssystem(Phase2+)-SubstitutionandmutingoflostframesforAdaptiveMultiRate(AMR)speechtrafficchannels(GSM06.91version7.1.1Release1998)(EndorsementoftheEnglishversionEN301705V7.1.1(2000-04)asG
【原文标准名称】:数字蜂窝式远程通信系统(2+相位).自适应多速率(AMR)语音话务信道用丢失帧的替换和噪声抑制
【标准号】:DINEN301705-2004
【标准状态】:现行
【国别】:德国
【发布日期】:2004-03
【实施或试行日期】:
【发布单位】:德国标准化学会(DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:通信系统;移动无线电通信系统;电信设备;电气工程;远程通信;电信;呼叫传输;通信网;无线电话话务量;数字的;语音传输;特殊服务
【英文主题词】:Calltransmission;Communicationnetworks;Communicationservice;Communicationsystems;Digital;Electricalengineering;Mobileradiosystems;Radiotelephonetraffic;Specialservice;Speechtransmission;Tele
【摘要】:ThisEuropeanstandardspecifiesrequirementsinthetelecommunicationssector.
【中国标准分类号】:M37
【国际标准分类号】:33_070_50
【页数】:2P;A4
【正文语种】:德语
【英文标准名称】:StandardSpecificationforAmorphousMagneticCoreAlloys,Semi-ProcessedTypes
【原文标准名称】:半成品型非晶形磁芯合金的标准规范
【标准号】:ASTMA901-1997
【标准状态】:作废
【国别】:美国
【发布日期】:1997
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:ASTM
【标准类型】:()
【标准水平】:()
【中文主题词】:非晶形状态;磁芯;半成品;合金
【英文主题词】:semi-finishedproducts;amorphousstate;alloys;magneticcores
【摘要】:
【中国标准分类号】:H53
【国际标准分类号】:29_100_10;29_030
【页数】:3P;A4
【正文语种】:英语
【英文标准名称】:StandardTestMethodforCompressivePropertiesofRigidPlastics
【原文标准名称】:硬质塑料的抗压性能的标准试验方法
【标准号】:ASTMD695-2010
【标准状态】:现行
【国别】:美国
【发布日期】:2010
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:D20.10
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:compressiveproperties;compressivestrength;modulusofelasticity;plastics;Loadingtests--plastics;Rigidplastics;Compressiontesting--plastics
【摘要】:Compressiontestsprovideinformationaboutthecompressivepropertiesofplasticswhenemployedunderconditionsapproximatingthoseunderwhichthetestsaremade.Compressivepropertiesincludemodulusofelasticity,yieldstress,deformationbeyondyieldpoint,andcompressivestrength(unlessthematerialmerelyflattensbutdoesnotfracture).Materialspossessingaloworderofductilitymaynotexhibitayieldpoint.Inthecaseofamaterialthatfailsincompressionbyashatteringfracture,thecompressivestrengthhasaverydefinitevalue.Inthecaseofamaterialthatdoesnotfailincompressionbyashatteringfracture,thecompressivestrengthisanarbitraryonedependinguponthedegreeofdistortionthatisregardedasindicatingcompletefailureofthematerial.Manyplasticmaterialswillcontinuetodeformincompressionuntilaflatdiskisproduced,thecompressivestress(nominal)risingsteadilyintheprocess,withoutanywell-definedfractureoccurring.Compressivestrengthcanhavenorealmeaninginsuchcases.Compressiontestsprovideastandardmethodofobtainingdataforresearchanddevelopment,qualitycontrol,acceptanceorrejectionunderspecifications,andspecialpurposes.Thetestscannotbeconsideredsignificantforengineeringdesigninapplicationsdifferingwidelyfromtheload-timescaleofthestandardtest.Suchapplicationsrequireadditionaltestssuchasimpact,creep,andfatigue.Beforeproceedingwiththistestmethod,referenceshouldbemadetotheASTMspecificationforthematerialbeingtested.Anytestspecimenpreparation,conditioning,dimensions,andtestingparameterscoveredinthematerialsspecificationshalltakeprecedenceoverthosementionedinthistestmethod.Ifthereisnomaterialspecification,thenthedefaultconditionsapply.Table1inClassificationD4000liststheASTMmaterialsstandardsthatcurrentlyexist.1.1Thistestmethodcoversthedeterminationofthemechanicalpropertiesofunreinforcedandreinforcedrigidplastics,includinghigh-moduluscomposites,whenloadedincompressionatrelativelylowuniformratesofstrainingorloading.Testspecimensofstandardshapeareemployed.Thisprocedureisapplicableforacompositemodulusuptoandincluding41,370MPa(6,000,000psi).1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesinparenthesesareforinformationonly.Note18212;Forcompressivepropertiesofresin-matrixcompositesreinforcedwithorientedcontinuous,discontinuous,orcross-plyreinforcements,testsmaybemadeinaccordancewithTestMethodD3410/D3410M.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Aspecificprecautionarystatementisgivenin13.1.Note28212;ThistestmethodistechnicallyequivalenttoISO604.
【中国标准分类号】:G31
【国际标准分类号】:83_080_01
【页数】:7P.;A4
【正文语种】:英语