ISO/IEC 23004-2-2007 信息技术.多媒体中间设备.第2部分:多媒体应用程序接口(API)
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来源:标准资料网
【英文标准名称】:Informationtechnology-MultimediaMiddleware-Part2:Multimediaapplicationprogramminginterface(API)
【原文标准名称】:信息技术.多媒体中间设备.第2部分:多媒体应用程序接口(API)
【标准号】:ISO/IEC23004-2-2007
【标准状态】:现行
【国别】:国际
【发布日期】:2007-10
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/IECJTC1/SC29
【标准类型】:()
【标准水平】:()
【中文主题词】:API;应用程序接口;数字的;信息技术;界面;接口(数据处理);中间设备;MPEG;多媒体;可编程序的;程序设计;软件;规范
【英文主题词】:API;ApplicationProgramInterface;Digital;Informationtechnology;Interfaces;Interfaces(dataprocessing);Middleware;MPEG;Multimedia;Programmable;Programming;Software;Specification
【摘要】:ThispartofISO/IEC23004definestheMultimediaapplicationprogramminginterface(API)ofMPEGMultimediaMiddleware.ThecontextofthisMultimediaAPIisdescribedinISO/IEC23004-1.
【中国标准分类号】:L78
【国际标准分类号】:35_040
【页数】:1468P.;A4
【正文语种】:英语
【英文标准名称】:StandardTestMethodforLaboratoryDeterminationofCreepPropertiesofFrozenSoilSamplesbyUniaxialCompression
【原文标准名称】:单轴压缩法实验室测定冻结土壤样品蠕变性能的标准试验方法
【标准号】:ASTMD5520-1994(2006)e1
【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(US-ASTM)
【起草单位】:D18.19
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:实验室;土壤;拉伸试验;使用;应力;蠕变性能;实验室试验;温度试验;变形;单轴压缩;冻结土壤;单轴压缩;冻结土壤样品;石头;粗石材料;压缩试验;蠕变;相关材料
【英文主题词】:creep;deformation;frozensoil;strain;stress;temperature;uniaxialcompression
【摘要】:Understandingthemechanicalpropertiesoffrozensoilsisofprimaryimportancetopermafrostengineering.Datafromcreeptestsarenecessaryforthedesignofmostfoundationelementsembeddedin,orbearingonfrozenground.Theymakeitpossibletopredictthetime-dependentsettlementsofpilesandshallowfoundationsunderserviceloads,andtoestimatetheirshort-andlong-termbearingcapacity.Creeptestsalsoprovidequantitativeparametersforthestabilityanalysisofundergroundstructuresthatarecreatedforpermanentuse.Itmustberecognizedthatthestructureoffrozensoilinsituanditsbehaviorunderloadmaydiffersignificantlyfromthatofanartificiallypreparedspecimeninthelaboratory.Thisismainlyduetothefactthatnaturalpermafrostgroundmaycontainiceinmanydifferentformsandsizes,inadditiontotheporeicecontainedinasmalllaboratoryspecimen.Theselargeground-iceinclusions(suchasicelenses)willconsiderablyaffectthetime-dependentbehavioroffull-scaleengineeringstructures.Inordertoobtainreliableresults,high-qualityundisturbedrepresentativepermafrostsamplesarerequiredforcreeptests.Thequalityofthesampledependsonthetypeoffrozensoilsampled,theinsituthermalconditionatthetimeofsampling,thesamplingmethod,andthetransportationandstorageprocedurespriortotesting.Thebesttestingprogramcanberuinedbypoor-qualitysamples.Inaddition,onemustalwayskeepinmindthattheapplicationoflaboratoryresultstopracticalproblemsrequiresmuchcautionandengineeringjudgment.1.1Thistestmethodcoversthedeterminationofthecreepbehaviorofcylindricalspecimensoffrozensoil,subjectedtouniaxialcompression.Itspecifiestheapparatus,instrumentation,andproceduresfordeterminingthestress-strain-time,orstrengthversusstrainraterelationshipsforfrozensoilsunderdeviatoriccreepconditions.1.2Althoughthistestmethodisonethatismostcommonlyused,itisrecognizedthatcreeppropertiesoffrozensoilrelatedtocertainspecificapplications,canalsobeobtainedbysomealternativeprocedures,suchasstress-relaxationtests,simplesheartests,andbeamflexuretests.Creeptestingundertriaxialtestconditionswillbecoveredinanotherstandard.1.3ValuesstatedinSIunitsaretoberegardedasthestandard.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:P13
【国际标准分类号】:13_080_40
【页数】:8P.;A4
【正文语种】:
【英文标准名称】:Fibreopticinterconnectingdevicesandpassivecomponents-Basictestandmeasurementprocedures-Part2-15:Tests-Torquestrengthofcouplingmechanism
【原文标准名称】:纤维光学互连器件和无源元件.基本试验和测量程序.第2-15部分:试验.锁紧机械装置的扭转强度
【标准号】:IEC61300-2-15-2008
【标准状态】:现行
【国别】:国际
【发布日期】:2008-02
【实施或试行日期】:
【发布单位】:国际电工委员会(IX-IEC)
【起草单位】:IEC/SC86B
【标准类型】:()
【标准水平】:()
【中文主题词】:卡口连接;元件;连接工艺;耦合;电插头;电气工程;紧固件;纤维光学;玻璃纤维光缆;插销;测量技术;光波导;无源的;螺旋联轴节;材料强度;测试;扭矩;扭矩校验;抗扭强度
【英文主题词】:Bayonetcouplings;Components;Connectiontechnology;Coupling;Electricplugs;Electricalengineering;Fasteners;Fibreoptics;Glassfibrecables;Latches;Measuringtechniques;Opticalwaveguides;Passive;Screwcouplings;Strengthofmaterials;Testing;Torque;Torquechecks;Torsionalstrength
【摘要】:ThispartofIEC61300appliesanoverloadtorquetotwist-typecouplingmechanisms.Itisapplicabletothreadedorbayonet-twisttypecouplingmechanisms.Itcanbeusedtoensurethatthecouplingmechanismofaconnectorsetorconnector-devicecombinationwillwithstandthetorsionalloadslikelytobeappliedduringnormalservice.
【中国标准分类号】:M33;L23
【国际标准分类号】:33_180_20
【页数】:8P;A4
【正文语种】:英语
