NF Z70-200-2-1998 信息技术.开放分配式处理.参照模式.第2部分:基础
时间:2024-05-17 22:08:36 来源: 标准资料网 作者：标准资料网 阅读：8059
【英文标准名称】:Informationtechnology.OpenDistributedProcessing.ReferenceModel.Part2:foundations.
【原文标准名称】:信息技术.开放分配式处理.参照模式.第2部分:基础
【标准号】:NFZ70-200-2-1998
【标准状态】:现行
【国别】:法国
【发布日期】:1998-12-01
【实施或试行日期】:1998-12-20
【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】:
【英文主题词】:
【摘要】:
【中国标准分类号】:L78
【国际标准分类号】:35_100_01
【页数】:27P;A4
【正文语种】:其他
【英文标准名称】:AnaloguePSTNterminalsupportinterface
【原文标准名称】:模拟公共开关电话网络终端支持接口
【标准号】:BS7940-1999
【标准状态】:现行
【国别】:英国
【发布日期】:1999-10-15
【实施或试行日期】:1999-10-15
【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】:
【英文主题词】:
【摘要】:ThisstandardappliestoapparatushavinganinterfacefortheconnectionofTerminalEquipment(T.E.)intendedforaDirectExchangeLine(D.E.L.)andspecifiestheperformancerequirementsoftheinterfacewhichmakeitappeartotheattachedT.E.thatisinterworkingwithasingle2-wireanaloguePSTND.E.L.
【中国标准分类号】:L23
【国际标准分类号】:33_040_35
【页数】:28P;A4
【正文语种】:英语
【英文标准名称】:StandardGuideforPresentationofWater-LevelInformationFromGround-WaterSites
【原文标准名称】:地下水位点水层信息的标准指南
【标准号】:ASTMD6000-1996(2008)
【标准状态】:现行
【国别】:美国
【发布日期】:1996
【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】:D18.21
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:
【英文主题词】:aquifer;confinedaquifer;groundwater;hydraulichead;hydrograph;potentiometricsurface;unconfinedaquifer;waterlevel;watertable;Aquifers;Confinedaquifers;Groundwater;Hydraulicproperties;Hydrogeologicmodels/investigations;Hydrogra
【摘要】:Determiningthepotentiometricsurfaceofanareaisessentialforthepreliminaryplanningofanytypeofconstruction,landuse,environmentalinvestigations,orremediationprojectsthatmayinfluenceanaquifer.Thepotentiometricsurfaceintheproposedimpactedaquifermustbeknowntoproperlyplanfortheconstructionofawaterwithdrawalorrechargefacility,forexample,awell.Themethodofconstructionofstructures,suchasbuildings,canbecontrolledbythedepthofthegroundwaterneartheproject.Otherprojectsbuiltbelowlandsurface,suchasminesandtunnels,areinfluencedbythehydraulichead.Monitoringthetrendoftheground-watertableinanaquiferoveraperiodoftime,whetherfordaysordecades,isessentialforanypermanentlyconstructedfacilitythatdirectlyinfluencestheaquifer,forexample,awastedisposalsiteoraproductionwell.Long-termmonitoringhelpsinterpretthedirectionandrateofmovementofwaterandotherfluidsfromrechargewellsandpitsorwastedisposalsites.Monitoringalsoassistsindeterminingtheeffectsofwithdrawalsonthestoredquantityofwaterintheaquifer,thetrendofthewatertablethroughouttheaquifer,andtheamountofnaturalrechargetotheaquifer.Thisguidedescribesthebasictabularandgraphicmethodsofpresentingground-waterlevelsforasingleground-watersiteandseveralsitesovertheareaofaproject.Thesemethodsweredevelopedbyhydrologiststoassistintheinterpretationofhydraulic-headdata.Thetabularmethodshelpinthecomparisonofrawdataandmodifiednumbers.Thegraphicalmethodsvisuallydisplayseasonaltrendscontrolledbyprecipitation,trendsrelatedtoartificialwithdrawalsfromorrechargetotheaquifer,interrelationshipofwithdrawalandrechargesites,rateanddirectionofwatermovementintheaquifer,andothereventsinfluencingtheaquifer.Presentationtechniquesresultingfromextensivecomputationalmethods,specificallythemathematicalmodelsandthedeterminationofaquifercharacteristics,arecontainedintheASTMstandardslistedinSection2.1.1Thisguidecoversandsummarizesmethodsforthepresentationofwater-leveldatafromground-watersites.Note18212;Asusedinthisguide,asiteismeanttobeasinglepoint,notageographicareaorproperty,locatedbyanX,Y,andZcoordinatepositionwithrespecttolandsurfaceorafixeddatum.Aground-watersiteisdefinedasanysource,location,orsamplingstationcapableofproducingwaterorhydrologicdatafromanaturalstratumfrombelowthesurfaceoftheearth.Asourceorfacilitycanincludeawell,springorseep,anddrainortunnel(nearlyhorizontalinorientation).Othersources,suchasexcavations,drivendevices,boreholes,ponds,lakes,andsinkholes,whichcanbeshowntobehydraulicallyconnectedtothegroundwater,areappropriatefortheuseintended.1.2Thestudyofthewatertableinaquifershelpsintheinterpretationoftheamountofwateravailableforwithdrawal,aquifertests,movementofwaterthroughtheaquifers,andtheeffectsofnaturalandhuman-inducedforcesontheaquifers.1.3Asinglewaterlevelmeasuredataground-watersitegivestheheightofwateratoneverticalpositioninawellorboreholeatafiniteinstantintime.Thisisinformationthatcanbeusedforpreliminaryplanningintheconstructionofawellorotherfacilities,suchasdisposalpits.Note28212;Hydraulicheadmeasuredwithinashorttimefromaseriesofsitesatacommon(single)horizontallocation,forexample,aspeciallyconstructedmulti-leveltestwell,indicatewhethertheverticalhydraulic......
【中国标准分类号】:P12
【国际标准分类号】:13_060_10
【页数】:16P.;A4
【正文语种】:英语