【英文标准名称】:Bituminousmixtures-Testmethodsforhotmixasphalt-Specimenpreparedbyrollercompactor
【原文标准名称】:沥青混合料.热混沥青的试验方法.由碾压机制备的样品
【标准号】:BSEN12697-33-2004
【标准状态】:现行
【国别】:英国
【发布日期】:2004-01-13
【实施或试行日期】:2004-01-13
【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】:试验;试样制备;测定;建筑;定义;试样;热混沥青;地沥青;压缩机;道路建筑;压实;施工材料;路面(道路)
【英文主题词】:Asphalts;Compacting;Compactors;Compressors;Construction;Constructionmaterials;Cuboid;Definition;Definitions;Determination;Hotmixasphalts;Pavements(roads);Roadconstruction;Rollers(compactors);Specimenpreparation;Specimens;Testspecimens;Testing
【摘要】:ThisEuropeanStandardspecifiesthemethodsforcompactingparallelepipedalspecimens(slabs)ofbituminousmixtures,tobeuseddirectlyforsubsequenttesting,orfromwhichtestspecimensarecut.Foragivenmassofbituminousmixture,thespecimensarepreparedeitherundercontrolledcompactionenergy,oruntilaspecifiedvolumeandthereforevoidcontentisobtained.ThisEuropeanStandarddescribesthefollowingmethodsofcompaction:—pneumatictyremethod,—steelrollermethod,—slidingplatesmethod.ThisEuropeanStandardisapplicabletobituminousmixturesmanufacturedinthelaboratoryorinamixingplant.
【中国标准分类号】:E43
【国际标准分类号】:93_080_20
【页数】:22P.;A4
【正文语种】:英语


【英文标准名称】:Informationtechnology-Securitytechniques;Cryptographictechniquesbasedonellipticcurves-Part2:Digitalsignatures
【原文标准名称】:信息技术.安全技术.基于椭圆曲线的密码技术.第2部分:数字签名
【标准号】:ISO/IEC15946-2-2002
【标准状态】:作废
【国别】:国际
【发布日期】:2002-12
【实施或试行日期】:
【发布单位】:国际标准化组织(ISO)
【起草单位】:ISO/IECJTC1
【标准类型】:()
【标准水平】:()
【中文主题词】:密码;签名;数字签名;曲线;代码表示;数字的;安全;数据转换;椭圆形的;数字数据;数据处理;数据安全;电子签名;椭圆;定义;信息技术;安全要求
【英文主题词】:
【摘要】:ThispartofISO/IEC15946specifiespublic-keycryptographictechniquesbasedonellipticcurves.Theyincludetheestablishmentofkeysforsecret-keysystems,anddigitalsignaturemechanisms.ThispartofISO/IEC15946describesmechanismsfordigitalsignatures.Themathematicalbackgroundandgeneraltechniquesnecessaryforimplementingthemechanismsaredescribedinpart1ofISO/IEC15946.ThescopeofthispartofISO/IEC15946isrestrictedtocryptographictechniquesbasedonellipticcurvesdefinedoverfinitefieldsofprimepowerorder(includingthespecialcasesofprimeorderandcharacteristictwo).Therepresentationofelementsoftheunderlyingfinitefield(i.e.whichbasisisused)isoutsidethescopeofthispartofISO/IEC15946.ThispartofISO/IEC15946doesnotfullyspecifytheimplementationofthetechniquesitdefines.Thus,additionalspecificationmayberequiredtoensurethecompatibilityofproductscomplyingwiththispartofISO/IEC15946.
【中国标准分类号】:L80
【国际标准分类号】:35_040
【页数】:29P;A4
【正文语种】:英语