EN 301997-1-2002 传输和多路复用(TM).多点设备.频带为40.5GHz至43.5GHz范围内的多媒体无线系统中使用的无线电设备.第1部分:一般要求
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【英文标准名称】:TransmissionandMultiplexing(TM)-Multipointequipment-RadioequipmentforuseinMultimediaWirelessSystems(MWS)inthefrequencyband40,5GHzto43,5GHz-Part1:Generalrequirements(EndorsementoftheEnglishversionEN301997-1V1.1.1(2002
【原文标准名称】:传输和多路复用(TM).多点设备.频带为40.5GHz至43.5GHz范围内的多媒体无线系统中使用的无线电设备.第1部分:一般要求
【标准号】:EN301997-1-2002
【标准状态】:现行
【国别】:
【发布日期】:2003-11
【实施或试行日期】:
【发布单位】:欧洲标准学会(EN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:电气工程;多媒体;无线电设备;多点连接;电信;无线电工程;复接;传输特性;规范(验收);无线;多路复用;传输技术;信号传输;参数;频带
【英文主题词】:Bandoffrequencies;Electricalengineering;Multimedia;Multiplex;Multiplexing;Multipointconnections;Parameters;Radioengineering;Radioequipment;Signaltransmission;Specification(approval);Telecommunication;Transmissioncharacteristics;Transmissiontechnique;Wireless
【摘要】:
【中国标准分类号】:M11
【国际标准分类号】:33_040_20
【页数】:1P.;A4
【正文语种】:英语
【英文标准名称】:StandardTestMethodforSpecificHeatofRockandSoil
【原文标准名称】:岩石和土壤的比热的标准试验方法
【标准号】:ASTMD4611-2008
【标准状态】:现行
【国别】:美国
【发布日期】:2008
【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】:D18.12
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:calibration;calorimeter;enthalpy;equilibriumtemperature;heatingtests-specificheat;rock;soil;temperaturetests;thermalanalysis-diffusivity;Calibration--soil/rockanalysisinstrumentation;Calorimeter;Enthalpy;Equilibriumtemperature;Heating
【摘要】:Specificheatisabasicthermodynamicpropertyofallsubstances.Thevalueofspecificheatdependsuponchemicalcompositionandtemperature.Therateoftemperaturediffusionthroughamaterial,thermaldiffusivity,isafunctionofspecificheat;therefore,specificheatisanessentialpropertyofrockandsoilwhenthesematerialsareusedunderconditionsofunsteadyortransientheatflow.1.1Thistestmethodcoversthedeterminationofinstantaneousandmeanspecificheatofrockandsoil.1.2Thistestmethodemploystheclassicalmethodofmixtures.Thisprovidesproceduresandapparatussimplerthanthosegenerallyusedinscientificcalorimetry,anaccuracythatisadequateformostrocksandsoils,andadegreeofprecisionthatisreproduciblebylaboratorytechniciansofaverageskill.Whilethistestmethodwasdevelopedfortestingrockandsoil,itiseasilyadaptabletomeasuringthespecificheatofothermaterials.1.3Thetestingprocedureprovidesaninstantaneousspecificheatoverthetemperature25to300x00B0;Corameanspecificheatinthattemperaturerange.1.4Thetestprocedureislimitedtodrysamples.1.5ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesaremathematicalconversionstoinch-poundunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:P13
【国际标准分类号】:93_020
【页数】:4P.;A4
【正文语种】:英语
【英文标准名称】:Unfiredpressurevessels.Part1:General
【原文标准名称】:非受火压力容器.第1部分:总则
【标准号】:BSEN13445-1-2009
【标准状态】:现行
【国别】:英国
【发布日期】:2009-09-30
【实施或试行日期】:2009-09-30
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:化工设备;定义(术语);设计;流体;总论;检验;监测用装置;数学计算;概述;焊接安装件;压力容器;生产;特性;安全装置;范围;规范(验收);符号;测试;非受火压力容器;焊接接头
【英文主题词】:Chemicaltechnologyequipment;Definitions;Design;Fluids;Generalsection;Inspection;Installationsinneedofmonitoring;Mathematicalcalculations;Overviews;Partsweldedto;Pressurevessels;Production;Properties;Safetydevices;Scope;Specification(approval);Symbols;Testing;Unfiredpressurevessels;Weldedjoints
【摘要】:ThispartofthisEuropeanStandarddefinestheterms,definitions,quantities,symbolsandunitsthatareusedthroughouttheEN13445.Italsocontainsinstructionsonhowtousethestandard(AnnexA)aswellasanindexwhichcoversthewholestandard(AnnexB).ThisinformationisaimedtoaidtheuseroftheEN13445.ThisEuropeanStandardappliestounfiredpressurevesselswithamaximumallowablepressuregreaterthan0,5bargaugebutmaybeusedforvesselsoperatingatlowerpressures,includingvacuum.NOTETheselection,applicationandinstallationofsafetyrelatedaccessoriesintendedtoprotectpressurevesselsduringoperationarecoveredinEN764-7.ThisEuropeanStandardisnotapplicabletopressurevesselsofthefollowingtypes-vesselsofrivetedconstruction;-vesselsoflamellarcastironoranyothermaterialsnotincludedinparts2,6,or8ofthestandard;-multilayered,autofrettagedorpre-stressedvessels;ThisEuropeanstandardmaybeappliedtothefollowingvessels,providedthataccountistakenofadditionaland/oralternativerequirementsresultingfromthehazardanalysis:-transportablevessels;-itemsspecificallydesignedfornuclearuse;-pressurevesselswithariskofoverheatingOtherEuropeanstandardsapplytoindustrialpiping(EN13480)andtowatertubeandshellboilers(EN12952and12953).
【中国标准分类号】:J74
【国际标准分类号】:23_020_30
【页数】:44P.;A4
【正文语种】:英语
