DIN EN 301460-2-2001 固定无线电系统.点对多点设备.第2部分:低于1GHz的点对多点数字无线电系统.TDMA系统附加参数

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【英文标准名称】:FixedRadioSystems-Point-to-pointequipment-Part2:Point-to-multipointdigitalradiosystemsbelow1GHz;AdditionalparametersforTDMAsystems(EndorsementoftheEnglishversionEN301460-2V1.1.1(2000-10)asGermanstandard)
【原文标准名称】:固定无线电系统.点对多点设备.第2部分:低于1GHz的点对多点数字无线电系统.TDMA系统附加参数
【标准号】:DINEN301460-2-2001
【标准状态】:现行
【国别】:德国
【发布日期】:2001-12
【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】:传输特性;无线电工程;信号传输;传输技术;多路复用;无线电装置;数字工程;电气工程;参数;时分多址联接
【英文主题词】:Digitalengineering;Electricalengineering;Multiplex;Parameters;Radioengineering;Radiosystems;Signaltransmission;Timedivisionmultipleaccess;Transmissioncharacteristics;Transmissiontechnique
【摘要】:Thedocumentspecifiesrequirementsinthetelecommunicationssector.
【中国标准分类号】:M36
【国际标准分类号】:33_060_30
【页数】:1P;A4
【正文语种】:德语


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【英文标准名称】:Parallelshanktools-Drivingtenonsandsockets-Dimensions.
【原文标准名称】:直柄刀具.传动榫及套筒.尺寸
【标准号】:NFE66-069-2005
【标准状态】:现行
【国别】:法国
【发布日期】:2005-03-01
【实施或试行日期】:2005-03-20
【发布单位】:法国标准化协会(AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:尺寸公差;管套;夹盘套筒;钻头;榫舌;原动机;铰刀;直柄;工具;尺寸;规范
【英文主题词】:Chuckbushings;Dimensionaltolerances;Dimensions;Drills;Parallelshanks;Primemovers;Reamers;Sleeves;Specifications;Tenons;Tools
【摘要】:
【中国标准分类号】:J41
【国际标准分类号】:25_060_20
【页数】:6P;A4
【正文语种】:其他


【英文标准名称】:StandardTablesforReferenceSolarUltravioletSpectralDistributions:Hemisphericalon37x00B0;TiltedSurface
【原文标准名称】:太阳紫外线光谱分布参考标准表:37度倾斜表面上的半球形分布
【标准号】:ASTMG177-2003(2008)e1
【标准状态】:现行
【国别】:美国
【发布日期】:2003
【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】:G03.09
【标准类型】:(Specification)
【标准水平】:()
【中文主题词】:
【英文主题词】:globalhemispherical;materialsexposure;terrestrial;ultravioletsolarspectralirradiance;Globalsolarirradiance;Solarspectralirradiance;Tables(measurement);Terrestrialsystems;Ultraviolet(UV)solarspectralirradiance
【摘要】:Thisstandarddoesnotpurporttoaddressthemeanlevelofsolarultravioletspectralirradiancetowhichmaterialswillbesubjectedduringtheirusefullife.Thespectralirradiancedistributionshavebeenchosentorepresentareasonableupperlimitfornaturalsolarultravioletradiationthatoughttobeconsideredwhenevaluatingthebehaviorofmaterialsundervariousexposureconditions.Absorptance,reflectance,andtransmittanceofsolarenergyareimportantfactorsinmaterialdegradationstudies.Thesepropertiesarenormallyfunctionsofwavelength,whichrequirethatthespectraldistributionofthesolarfluxbeknownbeforethesolar-weightedpropertycanbecalculated.Theinterpretationofthebehaviorofmaterialsexposedtoeithernaturalsolarradiationorultravioletradiationfromartificiallightsourcesrequiresanunderstandingofthespectralenergydistributionemployed.Tocomparetherelativeperformanceofcompetitiveproducts,ortocomparetheperformanceofproductsbeforeandafterbeingsubjectedtoweatheringorotherexposureconditions,areferencestandardsolarspectraldistributionisdesirable.AplotoftheSMARTS2modeloutputforthereferencehemisphericalUVradiationona37x00B0;southfacingtiltedsurfaceisshowninFig.1.TheinputneededbySMARTS2togeneratethespectrumfortheprescribedconditionsareshowninTable2.SMARTS2Version2.9.2isrequiredtogenerateAM1.05UVreferencespectra.Theavailabilityoftheadjunctstandardcomputersoftware(ADJG0173CD)forSMARTS2allowsoneto(1)reproducethereferencespectra,usingtheaboveinputparameters;(2)computetestspectratoattempttomatchmeasureddataataspecifiedFWHM,andevaluateatmosphericconditions;and(3)computetestspectrarepresentingspecificconditionsforanalysisvis-?/span>-visanyoneorallofthereferencespectra.1.1Thetableprovidesastandardultravioletspectralirradiancedistributionthatmaybeemployedasaguideagainstwhichmanufacturedultravioletlightsourcesmaybejudgedwhenappliedtoindoorexposuretesting.Thetableprovidesareferenceforcomparisonwithnaturalsunlightultravioletspectraldata.Theultravioletreferencespectralirradianceisproviddedforthewavelengthrangefrom280to400nm.ThewavelengthregionselectediscomprisedoftheUV-Aspectralregionfrom320to400nmandtheUV-Bregionfrom280to320nm.1.2Thetabledefinesasingleultravioletsolarspectralirradiancedistribution:1.2.1Totalhemisphericalultravioletsolarspectralirradiance(consistingofcombineddirectanddiffusecomponents)incidentonasun-facing,37x00B0;tiltedsurfaceinthewavelengthregionfrom280to400nmforairmass1.05,atanelevationof2km(2000m)abovesealevelfortheUnitedStatesStandardAtmosphereprofilefor1976(USSA1976),exceptingfortheozonecontentwhichisspecifiedas0.30atmosphere-centimeters(atm-cm)equivalentthichkness.1.3ThedatacontainedinthesetablesweregeneratedusingtheSMARTS2Version2.9.2atmospherictransmissionmodeldevelopedbyGueymard(1,2).1.4Theclimatic,atmosphericandgeometricparametersselectedreflecttheconditionstoprovidearealisticmaximumultravioletexposureunderrepresentativeclearskyconditions.1.5TheavailabilityoftheSMARTS2model(asanadjunct(ADJG0173CD)tothisstandard)usedtogeneratethestandardspectraallowsuserstoevaluatespectraldifferencesrelativetothespectraspecifiedhere.
【中国标准分类号】:F12
【国际标准分类号】:17_180_20
【页数】:9P.;A4
【正文语种】:英语