ANSI/TIA/EIA-136-220-2000 无线电接口VSELP最低性能
作者:标准资料网 时间:2024-05-16 13:05:33 浏览:9684
来源:标准资料网
【英文标准名称】:RadioInterfaceVSELPMinimumPerformance
【原文标准名称】:无线电接口VSELP最低性能
【标准号】:ANSI/TIA/EIA-136-220-2000
【标准状态】:现行
【国别】:美国
【发布日期】:2000
【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】:TDMA;远程通信;无线电工程;接口
【英文主题词】:Interfaces;Radioengineering;TDMA;Telecommunications
【摘要】:thissectiondescribestheVSELPminimumperformance
【中国标准分类号】:M14
【国际标准分类号】:33_060_01
【页数】:
【正文语种】:英语
【英文标准名称】:Graphiteelectrodesforelectricarcfurnaces—Dimensionsanddesignation
【原文标准名称】:电弧炉用石墨电极.尺寸和标记
【标准号】:BSEN60239-2005
【标准状态】:现行
【国别】:英国
【发布日期】:2006-02-24
【实施或试行日期】:2006-02-24
【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】:电弧炉;箱;连接件;定义;名称与符号;直径;尺寸;电气工程;电加热装置;电极;外螺纹;石墨电极;搬运;工业;内螺纹;长度;作标记;螺纹接头;公称长度;公称尺寸;可置换性;螺纹;公差(测量)
【英文主题词】:
【摘要】:ThisInternationalStandardspecifiesthedimensionsofturnedandthreadedcylindricalgraphitearcfurnaceelectrodesandgraphiteelectrodepinsforuseasfullgraphiteelectrodecolumnsonarcfurnaces.Thisstandardcoversthedimensionsandtolerancesonlengthanddiameterofelectrodes;thedimensions,tolerancesandthreaddetailsforelectrodesocketsandpinsoftaperedshape,usedwiththeelectrodes.Thestandardizationoftheabovedimensionalfeaturesisessentialfortheinterchangeabilityofelectrodesfromdifferentsources,andisaminimumstandard.
【中国标准分类号】:K61
【国际标准分类号】:25_180_10
【页数】:26P;A4
【正文语种】:英语
【英文标准名称】:StandardTestMethodforEvaluatingTrans-VinyleneYieldinIrradiatedUltra-High-Molecular-WeightPolyethyleneFabricatedFormsIntendedforSurgicalImplantsbyInfraredSpectroscopy
【原文标准名称】:用红外线光谱法评价外科植入物用辐射超高分子量聚乙烯加工式样中反式亚乙烯屈服性的标准试验方法
【标准号】:ASTMF2381-2004
【标准状态】:现行
【国别】:
【发布日期】:2004
【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】:F04.15
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:crosslinking;FTIR(FourierTransformInfrared);implant;trans-vinyleneindex;TVI;UHMWPE(ultra-high-molecular-weight-polyethylene)
【摘要】:Publishedliteratureshowsthattheyieldofradiolyticreactionsthatoccurduringradiationtreatmentincreaseswithradiationdoselevel.Measurementoftheproductsofthesereactionscanbeusedasaninternaldosimeter.Trans-vinyleneunsaturationsareformedduringionizationtreatmentbyabstractionofahydrogenmolecule,andtoalesserextentbytherecombinationoftwoadjacentalkylfreeradicalsthatresideonthesamechain.Previousworkgeneratedcalibrationcurvesoftrans-vinyleneabsorptionareaasafunctionofabsorbedradiationdose,yieldingalinearrelationshipforbothgamma-andelectronbeam-irradiatedpolyethylene.Thisdatacanbeusedtodeterminereceiveddoseasafunctionofposition,assumingacalibrationcurve(TVIversusradiationdoselevel)isknownfortheparticularmaterialandradiationconditionsused,andcanbeusedtodetermineuniformityofdoselevelinirradiatedpolyethylene.1.1Thistestmethoddescribesthemeasurementofthenumberoftrans-vinylenegroupsinultra-highmolecularweight-weightpolyethylene(UHMWPE)intendedforuseinmedicalimplants.Thematerialisanalyzedbyinfraredspectroscopy.1.2ThistestmethodisbasedonGuideF2102.1.3Theapplicabilityoftheinfraredmethodhasbeendemonstratedinotherliteraturereports.Thisparticularmethod,usingtheintensity(area)oftheC-Habsorptioncenteredat1370cm-1tonormalizeforthesamplesthickness,willbevalidatedbyanInterlaboratoryStudy(ILS)conductedaccordingtoPracticeE691.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:C35
【国际标准分类号】:11_040_40
【页数】:4P.;A4
【正文语种】:
