【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】:
基本信息
| 标准名称： | 硅外延层堆垛层错密度测定干涉相衬显微镜法 |
| 英文名称： | Test method for stacking fault density of epitaxial layers of silicon by interference contrast microscopy |
| 中标分类： |
冶金 >>
金属理化性能试验方法 >>
金相检验方法 |
| ICS分类： |
|
| 发布部门： | 国家技术监督局 |
| 发布日期： | 1993-02-06 |
| 实施日期： | 1993-10-01 |
| 首发日期： | 1993-02-06 |
| 作废日期： | 2005-10-14 |
| 主管部门： | 国家标准化管理委员会 |
| 归口单位： | 全国半导体材料和设备标准化技术委员会 |
| 起草单位： | 上海有色金属研究所 |
| 出版日期： | 1900-01-01 |
| 页数： | 平装16开， 页数：5， 字数：6千字 |
适用范围
本标准规定了使用干涉相衬显微镜非破坏性测量硅外延层堆垛层错密度的方法。本标准适用于硅外延层厚度不小于3μm、外延层晶向偏离｛111｝晶面或｛100｝晶面角度较小的试样的堆垛层错密度测量。当堆垛层错密度超过15000cm-2或当外延层晶向与｛111｝晶面或｛100｝晶面偏离角度较大时，测量精度将有所降低。
前言
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所属分类： 冶金 金属理化性能试验方法 金相检验方法