ANSI/TIA-102.BABB-1999 项目25.声码器平均评价值符合性试验

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【英文标准名称】:Project25VocoderMeanOpinionScoreConformanceTest
【原文标准名称】:项目25.声码器平均评价值符合性试验
【标准号】:ANSI/TIA-102.BABB-1999
【标准状态】:作废
【国别】:美国
【发布日期】:1999
【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】:ANSI
【标准类型】:()
【标准水平】:()
【中文主题词】:电信;数字工程;无线电工程;试验
【英文主题词】:Conformitytesting;Digitalengineering;Mean;Radio;Radioengineering;Telecommunications;Terrestrial;Testing;Tests;TETRA;Vocoders
【摘要】:DetailsdefinitionsandmethodsofmeasurementfortestingconformanceofspeechcodecsusedinProject25DigitalLandMobileRadioEquipmenttothereferencespeechcodecdefinedforProject25.
【中国标准分类号】:M36
【国际标准分类号】:33_070_10
【页数】:
【正文语种】:英语


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Product Code:SAE AMS2516
Title:Polytetrafluoroethylene (Ptfe) Resin Coating, High Build, 370-400Mdc (698-752Mdf) Fusion
Issuing Committee:Ams P Polymeric Materials Committee
Scope:This specification establishes the engineering requirements for producing thick coatings of polytetrafluoroethylene (PTFE) resin on parts and the properties of such coatings. Primarily to provide dry lubrication, high heat stability, and corrosion protection on parts which operate at not higher than 275 degrees C (527 degrees F) for limited periods or not higher than 245 degrees C (473 degrees F) for extended periods. This coating may also be used as a release film for molds.【英文标准名称】:Mechanicalvibration-Ground-bornenoiseandvibrationarisingfromrailsystems-Part1:Generalguidance
【原文标准名称】:机械振动.轨道系统产生的地面噪音和振动.第1部分:一般指南
【标准号】:ISO14837-1-2005
【标准状态】:现行
【国别】:国际
【发布日期】:2005-07
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/TC108
【标准类型】:()
【标准水平】:()
【中文主题词】:空气污染;空气噪声;空气(载)声;原因;定义;效果;辐射;环境条件;指导手册;测量;测量技术;噪声源;感觉;预测;量化;轨道;铁路运输;铁路设施;铁路固定设备;铁道车辆;铁路;声源;源泉(水);结构噪声;心土;交通道路;传输;隧道;地下铁道;振动;振动工程;振动测量
【英文主题词】:Airpollution;Airbornenoise;Airbornesound;Causes;Definitions;Effect;Emission;Environmentalconditions;Guidebooks;Measurement;Measuringtechniques;Noisesources;Perception;Prediction;Quantification;Railtracks;Railtransport;Railwayapplications;Railwayfixedequipment;Railwayvehicles;Railways;Soundsources;Springs(water);Structure-bornenoise;Subsoil;Trafficways;Transmittances;Tunnels;Undergroundrailways;Vibration;Vibrationengineering;Vibrationmeasurement;Vibrations
【摘要】:ThispartofISO14837providesgeneralguidanceonground-bornevibrationgeneratedbytheoperationofrailsystems,andtheresultantground-bornenoiseinbuildings.Itliststhefactorsandparametersthatneedtobetakenintoconsiderationandoffersguidanceonpredictionmethodsappropriateforarangeofcircumstances(e.g.tosupporttheassessmentofeffectsonhumanoccupantsandsensitiveequipmentoroperationsinsidethebuildingsinadditiontothepredictionsrequiredtoassesstheriskofdamagetobuildingstructures).AttentionispaidinthispartofISO14837to?characteristicsofthesource:emission(e.g.train,wheel,rail,track,supportinginfrastructure),?propagationpath:transmission(e.g.groundcondition,distance),and?receivingstructures:immission:(e.g.foundations,formofbuildingconstruction).Theguidancecoversallformsofwheelandrailsystems,fromlight-railtohigh-speedtrainsandfreight.ThispartofISO14837providesguidanceforrailsystemsat-grade,onelevatedstructuresandintunnels.ThispartofISO14837doesnotdealwithvibrationarisingfromtheconstructionandmaintenanceoftherailsystem.Itdoesnotdealwithairbornenoise.Structure-radiatednoisefromelevatedstructures,whichcanhaveasignificantenvironmentalimpact,isalsoexcluded.
【中国标准分类号】:J04
【国际标准分类号】:03_220_30;17_140_30;17_160
【页数】:45P.;A4
【正文语种】:英语