【英文标准名称】:Roadtransportandtraffictelematics-Publictransport-Referencedatamodel
【原文标准名称】:道路运输和交通远程信息管理.公共运输.参照数据模型
【标准号】:BSEN12896-2006
【标准状态】:现行
【国别】:英国
【发布日期】:2006-03-31
【实施或试行日期】:2006-03-31
【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】:数据;数据模型;数据传送;定义;信息交换;模型;摩托车;客运;式样;公共运输;公共事业;道路运输;远程信息管理;远程处理;交通业务
【英文主题词】:Data;Datamodels;Datatransfer;Definition;Definitions;Informationinterchange;Models;Motorvehicles;Passengertraffic;Patterns;Publictransport;Publicutilities;Roadtransport;Telematics;Teleprocessing;Traffic
【摘要】:1.1GeneralTheEuropeanreferencedatamodelforpublictransportisanoffertopublictransportcompaniesandotherprovidersofservicesrelatedtotheprocessofpassengertransportationandinformation,tosuppliersofsoftwareproductssupportingtheseprocesses,andtoconsultantsandotherexpertsactinginthefieldofpublictransportinthewidestsense.Thereferencedatamodelcansupportthedevelopmentofsoftwareapplications,theirinteractionorcombinationinanintegratedinformationsystem,andthesystem‘sorganisationandinformationmanagementwhichrulestheutilisationoftheexistingtelematicsenvironmentinacompany(orgroupofcompanies)runningcomputerapplicationssupportingthedifferentfunctionalareasofpublictransport.Althoughprimarilydesignedtodocumenttheinformationneedsofapublictransportcompanyinawelldefinedandstructuredway,thereferencedatamodelcanalsoserveasastartingpointandreferenceforthedefinitionofadatabaseschema.Adatabaseschemaisneededforthephysicalimplementationofdatastoragesystemstobeusedbyapplicationsdirectly,orforexchangeofdatabetweenapplicationsviainterfaces.Apartfromthat,suchadatabasewilloftenadditionallybeusedasasourceofinformationforthecompanymanagementand/orasaninformationpoolforallemployeeswhomayneedaccesstotheinformationbasisofthecompany.1.2OverviewThedatamodeldescribeselementarydataneededfor??networkdescription;and??versionsmanagement.thatareusedinseveralfunctionaldomainsasbasicconcepts.Thedatamodeldescribestheinformationneedsrelatedtothefollowingfunctionaldomains:??tacticalplanning(vehiclescheduling,driverscheduling,rostering);??personnel(driver)disposition;??operationsmonitoringandcontrol;??passengerinformation;??farecollection;??managementinformationandstatistics.Thestandardtakesintoaccountthe:??multi-modalpublictransportoperation;??multipleoperatorsenvironment.LicensedCopy:WangBin,na,MonMay1507:59:15BST2006,UncontrolledCopy,(c)BSI
【中国标准分类号】:R07
【国际标准分类号】:35_240_60
【页数】:658P;A4
【正文语种】:英语


【英文标准名称】:StandardTestMethodsforBendTestingofMaterialforDuctility
【原文标准名称】:材料延展性的弯曲测试的标准试验方法
【标准号】:ASTME290-1997a(2004)
【标准状态】:现行
【国别】:
【发布日期】:1997
【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】:E28.02
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:弯曲试验;试验;机械试验;材料;延展性;金属
【英文主题词】:bend;crack;ductility;flattenedbend;forminglimit;fracture;freebend;guidedbend;mandrel;pin;plunger;roller
【摘要】:Bendtestsforductilityprovideasimplewaytoevaluatethequalityofmaterialsbytheirabilitytoresistcrackingorothersurfaceirregularitiesduringonecontinuousbend.Noreversalofthebendforceshallbeemployedwhenconductingthesetests.Thetypeofbendtestuseddeterminesthelocationoftheforcesandconstraintsonthebentportionofthespecimen,rangingfromnodirectcontacttocontinuouscontact.Thetestcanterminateatagivenangleofbendoveraspecifiedradiusorcontinueuntilthespecimenlegsareincontact.Thebendanglecanbemeasuredwhilethespecimenisunderthebendingforce(usuallywhenthesemi-guidedbendtestisemployed),orafterremovaloftheforceaswhenperformingafree-bendtest.Productrequirementsforthematerialbeingtesteddeterminethemethodused.Materialswithanas-fabricatedcrosssectionofrectangular,round,hexagonal,orsimilardefinedshapecanbetestedinfullsectiontoevaluatetheirbendpropertiesbyusingtheproceduresoutlinedinthesetestmethods,inwhichcaserelativewidthandthicknessrequirementsdonotapply.1.1Thesetestmethodscoverbendtestingforductilityofmaterials.Includedintheproceduresarefourconditionsofconstraintonthebentportionofthespecimen;aguided-bendtestusingamandrelorplungerofdefineddimensionstoforcethemid-lengthofthespecimenbetweentwosupportsseparatedbyadefinedspace;asemi-guided-bendtestinwhichthespecimenisbent,whileincontactwithamandrel,throughaspecifiedangleortoaspecifiedinsideradius(r)ofcurvature,measuredwhileunderthebendingforce;afree-bendtestinwhichtheendsofthespecimenarebroughttowardeachother,butinwhichnotransverseforceisappliedtothebenditselfandthereisnocontactoftheconcaveinsidesurfaceofthebendwithothermaterial;abendandflattentest,inwhichatransverseforceisappliedtothebendsuchthatthelegsmakecontactwitheachotheroverthelengthofthespecimen.1.2Afterbending,theconvexsurfaceofthebendisexaminedforevidenceofacrackorsurfaceirregularity.Ifthespecimenfractures,thematerialhasfailedthetest.Whencompletefracturedoesnotoccur,thecriterionforfailureisthenumberandsizeofcracksorothersurfaceirregularityvisibletotheunaidedeyeoccurringontheconvexsurfaceofthespecimenafterbending,asspecifiedbytheproductstandard.Anycrackswithinonethicknessoftheedgeofthespecimenarenotconsideredabendtestfailure.Cracksoccurringinthecornersofthebentportionshallnotbeconsideredsignificantunlesstheyexceedthesizespecifiedforcornercracksintheproductstandard.1.3ThevaluesstatedinSIunitsaretoberegardedasstandard.Inch-poundvaluesgiveninparentheseswereusedinestablishingtestparametersandareforinformationonly.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:H23
【国际标准分类号】:77_040_10(MECHANICALTESTINGOFMETALS)
【页数】:7P.;A4
【正文语种】: