JJF 1180-2007 时间频率计量名词术语及定义
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来源:标准资料网
基本信息
标准名称: | 时间频率计量名词术语及定义 |
英文名称: | Glossary and Definition of Time and Frequency Metrology |
中标分类: |
综合 >>
计量 >>
时间、频率计量 |
ICS分类: |
计量学和测量、物理现象 >>
时间、速度、加速度、角速度的测量
|
发布部门: | 国家质量监督检验检疫总局 |
发布日期: | 2007-06-14 |
实施日期: | 2007-09-14 |
首发日期: | |
作废日期: | |
提出单位: | 中国计量科学研究院 |
归口单位: | 全国时间频率计量技术委员会 |
起草单位: | 中国计量科学研究院 |
起草人: | 马凤鸣 |
出版社: | 中国计量标准出版社 |
出版日期: | 2007-09-14 |
页数: | 20页 |
书号: | 155026-2260 |
适用范围
本规范描述了时间频率计量名词术语及定义
前言
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目录
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引用标准
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所属分类: 综合 计量 时间 频率计量 计量学和测量 物理现象 时间 速度 加速度 角速度的测量
【英文标准名称】:StandardGuideforComparingGround-WaterFlowModelSimulationstoSite-SpecificInformation
【原文标准名称】:地下水流型模拟与现场信息比较的标准导则
【标准号】:ASTMD5490-1993(2002)
【标准状态】:现行
【国别】:
【发布日期】:1993
【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】:D18.21
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:地下水;校准;土壤;位置;含水土层;现场对比;比较技术;地下水流动方式模拟物;水文应力情况;模型制造;岩石分析仪表设备;散布图;模型;导则
【英文主题词】:calibration;computer;groundwater;modeling;
【摘要】:Duringtheprocessofcalibrationofaground-waterflowmodel,eachsimulationiscomparedtosite-specificinformationtoascertainthesuccessofpreviouscalibrationeffortsandtoidentifypotentiallybeneficialdirectionsforfurthercalibrationefforts.Proceduresdescribedhereinprovideguidanceformakingcomparisonsbetweenground-waterflowmodelsimulationsandmeasuredfielddata.Thisguideisnotmeanttobeaninflexibledescriptionoftechniquescomparingsimulationswithmeasureddata;othertechniquesmaybeappliedasappropriateand,afterdueconsideration,someofthetechniqueshereinmaybeomitted,altered,orenhanced.1.1Thisguidecoverstechniquesthatshouldbeusedtocomparetheresultsofground-waterflowmodelsimulationstomeasuredfielddataasapartoftheprocessofcalibratingaground-watermodel.Thiscomparisonproducesquantitativeandqualitativemeasuresofthedegreeofcorrespondencebetweenthesimulationandsite-specificinformationrelatedtothephysicalhydrogeologicsystem.1.2Duringtheprocessofcalibrationofaground-waterflowmodel,eachsimulationiscomparedtosite-specificinformationsuchasmeasuredwaterlevelsorflowrates.Thedegreeofcorrespondencebetweenthesimulationandthephysicalhydrogeologicsystemcanthenbecomparedtothatforprevioussimulationstoascertainthesuccessofpreviouscalibrationeffortsandtoidentifypotentiallybeneficialdirectionsforfurthercalibrationefforts.1.3Bynecessity,allknowledgeofasiteisderivedfromobservations.Thisguidedoesnotaddresstheadequacyofanysetofobservationsforcharacterizingasite.1.4Thisguidedoesnotestablishcriteriaforsuccessfulcalibration,nordoesitdescribetechniquesforestablishingsuchcriteria,nordoesitdescribetechniquesforachievingsuccessfulcalibration.1.5Thisguideiswrittenforcomparingtheresultsofnumericalground-waterflowmodelswithobservedsite-specificinformation.However,thesetechniquescouldbeappliedtoothertypesofground-waterrelatedmodels,suchasanalyticalmodels,multiphaseflowmodels,noncontinuum(karstorfractureflow)models,ormasstransportmodels.1.6Thisguideisoneofaseriesofguidesonground-watermodelingcodes(software)andtheirapplications.Otherstandardshavebeenpreparedonenvironmentalmodeling,suchasPracticeE978.1.7ThevaluesstatedinSIunitsaretoberegardedasthestandard.1.8Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.1.9Thisguideoffersanorganizedcollectionofinformationoraseriesofoptionsanddoesnotrecommendaspecificcourseofaction.Thisdocumentcannotreplaceeducationorexperienceandshouldbeusedinconjunctionwithprofessionaljudgment.Notallaspectsofthisguidemaybeapplicableinallcircumstances.ThisASTMstandardisnotintendedtorepresentorreplacethestandardofcarebywhichtheadequacyofagivenprofessionalservicemustbejudged,norshouldthisdocumentbeappliedwithoutconsiderationofaproject'smanyuniqueaspects.Theword"Standard"inthetitleofthisdocumentmeansonlythatthedocumenthasbeenapprovedthroughtheASTMconsensusprocess.
【中国标准分类号】:P12
【国际标准分类号】:07_060;13_060_10
【页数】:8P.;A4
【正文语种】:
【英文标准名称】:Network-to-CustomerInstallationInterfaces-AnalogVoicegradeSwitchedAccessLineswithNetwork-ImplementedCoin-OperatedPayphoneFeature
【原文标准名称】:网络到用户设备接口.带网络实现投币付费电话功能的模拟音频转换访问线路
【标准号】:ANSIATIS0600401.05-2000
【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】:电路网络;信息技术;接口;电信
【英文主题词】:Circuitnetworks;Informationtechnology;Interfaces;Telecommunications
【摘要】:
【中国标准分类号】:M19
【国际标准分类号】:33_040_35
【页数】:
【正文语种】:英语