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MIL-STD-1681 (NOTICE 1)

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MIL-STD-1681 (NOTICE 1), MILITARY STANDARD: FABRICATION, WELDING, AND INSPECTION OF HY-130 SUBMARINE HULL (05 MAY 1998) [S/S BY NAVSEA T9034-AD-GIB-010/1688)]., MIL-STD-1681, dated 29 March 1976, is hereby canceled without replacement
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【英文标准名称】:SafetyStandardforAirCompressorSystems
【原文标准名称】:空气压缩机系统安全标准
【标准号】:ANSI/CAGIB19.1-2011
【标准状态】:现行
【国别】:美国
【发布日期】:2011
【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】:
【英文主题词】:
【摘要】:Addressesallaspectsofaircompressorsystemsfromtheentrancetotheinletdevicethroughthecompressorandassociatedheatexchangers,dryers,andpulsationsuppressiondevicestothepointofentrytothedistributionsystem.
【中国标准分类号】:J72
【国际标准分类号】:23_140
【页数】:
【正文语种】:英语


【英文标准名称】:StandardGuideforConductingaSensitivityAnalysisforaGround-WaterFlowModelApplication
【原文标准名称】:地下水流样品应用的灵敏度分析标准导则
【标准号】:ASTMD5611-1994(2002)
【标准状态】:现行
【国别】:
【发布日期】:1994
【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】:计算机;校准;地下;土壤;导则;地下水;取样;水文地质系统;有关材料;灵敏度分析;水流样品应用;水样品
【英文主题词】:calibration;computer;groundwater;modeling;sensitivity;
【摘要】:Afteramodelhasbeencalibratedandusedtodrawconclusionsaboutaphysicalhydrogeologicsystem(forexample,estimatingthecapturezoneofaproposedextractionwell),asensitivityanalysiscanbeperformedtoidentifywhichmodelinputshavethemostimpactonthedegreeofcalibrationandontheconclusionsofthemodelinganalysis.Ifvariationsinsomemodelinputsresultininsignificantchangesinthedegreeofcalibrationbutcausesignificantlydifferentconclusions,thenthemerefactofhavingusedacalibratedmodeldoesnotmeanthattheconclusionsofthemodelingstudyarevalid.Thisguideisnotmeanttobeaninflexibledescriptionoftechniquesofperformingasensitivityanalysis;othertechniquesmaybeappliedasappropriateand,afterdueconsideration,someofthetechniqueshereinmaybeomitted,altered,orenhanced.1.1Thisguidecoverstechniquesthatshouldbeusedtoconductasensitivityanalysisforaground-waterflowmodel.Thesensitivityanalysisresultsinquantitativerelationshipsbetweenmodelresultsandtheinputhydraulicpropertiesorboundaryconditionsoftheaquifers.1.2Afteraground-waterflowmodelhasbeencalibrated,asensitivityanalysismaybeperformed.Examinationofthesensitivityofcalibrationresidualsandmodelconclusionstomodelinputsisamethodforassessingtheadequacyofthemodelwithrespecttoitsintendedfunction.1.3Afteramodelhasbeencalibrated,amodelermayvarythevalueofsomeaspectoftheconditionsapplyingsolelytothepredictionsimulationsinordertosatisfysomedesigncriteria.Forexample,thenumberandlocationsofproposedpumpingwellsmaybevariedinordertominimizetherequireddischarge.Insofarastheseaspectsarecontrollable,variationoftheseparametersispartofanoptimizationprocedure,and,forthepurposesofthisguide,wouldnotbeconsideredtobeasensitivityanalysis.Ontheotherhand,estimatesoffutureconditionsthatarenotcontrollable,suchastherechargeduringapostulateddroughtofunknowndurationandseverity,wouldbeconsideredascandidatesforasensitivityanalysis.1.4Thisguidepresentsthesimplestacceptabletechniquesforconductingasensitivityanalysis.Othertechniqueshavebeendevelopedbyresearchersandcouldbeusedinlieuofthetechniquesinthisguide.1.5Thisguideiswrittenforperformingsensitivityanalysesforground-waterflowmodels.However,thesetechniquescouldbeappliedtoothertypesofground-waterrelatedmodels,suchasanalyticalmodels,multi-phaseflowmodels,non-continuum(karstorfractureflow)models,ormasstransportmodels.1.6Thisguideisoneofaseriesonground-watermodelingcodes(software)andtheirapplications,suchasGuideD5447andGuideD5490.Otherstandardshavebeenpreparedonenvironmentalmodeling,suchasPracticeE978.1.7Thevaluesstatedininch-poundunitsaretoberegardedasthestandard.TheSIunitsgiveninparenthesesareforinformationonly.1.8Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.1.9Thisguideoffersanorganizedcollectionofinformationoraseriesofoptionsanddoesnotrecommendaspecificcourseofaction.Thisdocumentcannotreplaceeducationorjudgement.Notallaspectsofthisguidemaybeapplicalbeinallcircumstances.ThisASTMstandardisnotintendedtorepresentorreplacethestandardofcarebywhichtheadequacyofagivenprofessionalservicemustbejudged,norshouldthisuniqueaspects.Theword"Standard"inthetitleofthisdocumentmeansonlythatthedocumenthasbeenapp......
【中国标准分类号】:P12
【国际标准分类号】:13_060_10
【页数】:5P.;A4
【正文语种】: