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BS EN 61834-9-2001 录像.家用6.35mm螺旋扫描数字盒式录像系统(525-60,625-50,1125-60和1250-50系统).DVB格式

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【英文标准名称】:Recording-Helical-scandigitalvideocassetterecordingsystemusing6,35mmmagnetictapeforconsumeruse(525-60,625-50,1125-60and1250-50systems)-DVBformat
【原文标准名称】:录像.家用6.35mm螺旋扫描数字盒式录像系统(525-60,625-50,1125-60和1250-50系统).DVB格式
【标准号】:BSEN61834-9-2001
【标准状态】:现行
【国别】:英国
【发布日期】:2001-12-07
【实施或试行日期】:2001-12-07
【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】:盒式磁带;录像磁带;家用的;数据布置;视频记录;记录系统;螺旋扫描记录(法);磁带;数字记录法;磁带记录;记录设备部件
【英文主题词】:Bitstreams;Cassettes(magnetictapes);Digital;Digitalrecordingtechnique;DigitalVideoBroadcast;Dimensions;DVB;Entertainmentelectronics;Helicalscanrecording;Homeuse;Householdequipment;Householduse;Magnetictaperecordings;Numericaldesignations;Operation;Position;Specification(approval);Televisionbroadcasting;Trackpitch;VHS;Videocassettes;Videorecording;Videorecordingsystems;Videotaperecorders;Videotaperecordings
【摘要】:ThispartofIEC61834specifiesthecontent,formatandrecordingmethodforthedatablocksformingthehelicalrecordsonthetapecontainingaudio,videoandsystemdata.ThispartdescribesthespecificationsfortherecordingofsingleDVBprogrammes.TheDVBdataisdeliveredtothedigitalvideocassetterecorderviaadigitalinterfaceorbyabuilt-intuner(IRD).TheDVBdataconsistofanMPEG2transportstreamcontainingoneormoreprogrammes.InDVB,theMPEG2MP@MLisspecifiedtoencodethevideosignal.Themaximumbitrateforthevideosignalis15Mbps.Oneprogrammemayconsistofonevideobitstreamorseveralaudiobitstreamsanddatabitstreams.DuetothevariedbitratesofsingleDVBprogrammes,severalrecordingmodesarespecifiedinordertomakeefficientuseofthestoragecapacityofthedigitalvideocassetterecorder.InadditiontothenormalplaydatastreamofDVBrecording,oneortwospecialtrickplaydatastreamsmayoptionallybegeneratedandrecordedinthevideoarea.Inthispart9,thedatastructureofatrackisdefinedbyAPT=000bwhichconsistsoffourareasasdescribedin4.3.2ofIEC61834-1andAPI=AP3=000b.ThedatastructureofMICisthesameasinclause10ofIEC61834-2.
【中国标准分类号】:M71
【国际标准分类号】:33_160_40
【页数】:44P.;A4
【正文语种】:英语


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【英文标准名称】:Structuraladhesives-Qualitativeassessmentofdurabilityofbondedassemblies-Wedgerupturetest.
【原文标准名称】:结构胶粘剂.粘合组件耐久性的定性评定.楔形破裂试验
【标准号】:NFT76-114-2006
【标准状态】:现行
【国别】:法国
【发布日期】:2006-03-01
【实施或试行日期】:2006-03-05
【发布单位】:法国标准化协会(FR-AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:粘结强度;胶粘连接;胶粘剂;老化试验;测定;裂纹;实验室试验;材料试验;结构胶粘剂;试验;试验条件;验证
【英文主题词】:Adhesivestrength;Adhesive-bondedjoints;Adhesives;Ageingtests;Determination;Flaws;Laboratorytesting;Materialstesting;Structuraladhesives;Testing;Testingconditions;Verification
【摘要】:
【中国标准分类号】:G39
【国际标准分类号】:83_180
【页数】:9P;A4
【正文语种】:其他


【英文标准名称】:Mechanicalvibrationandshock-Characterizationofthedynamicmechanicalpropertiesofvisco-elasticmaterials-Part5:Poissonratiobasedoncomparisonbetweenmeasurementsandfiniteelementanalysis
【原文标准名称】:机械振动和冲击.粘弹性材料动态机械性能的特性.第5部分:基于测量和有限元分析之间比对的泊松比
【标准号】:ISO18437-5-2011
【标准状态】:现行
【国别】:国际
【发布日期】:2011-04-15
【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/TC108
【标准类型】:()
【标准水平】:()
【中文主题词】:定义(术语);弹性(流体);测量;测量技术;材料的机械性能;泊松比;冲击;规范(验收);测试;振动;振动效果;振动影响(对人体);振动测量;抗震试验
【英文主题词】:Definitions;Elasticproperties(fluids);Measurement;Measuringtechniques;Mechanicalpropertiesofmaterials;Poisson'sratio;Shock;Specification(approval);Testing;Vibration;Vibrationeffects;Vibrationeffects(humanbody);Vibrationmeasurement;Vibrationresistancetests
【摘要】:ThispartofISO18437specifiestwomethodsforestimatingPoissonratioor/andelasticmodulusforisotropicvisco-elasticorporous-elasticmaterialsforuseinlinearfiniteelementmethod(FEM)computerprogramsorothernumericalapproachestovibrationaloracousticproblemsinvisco-elasticstructuresofcomplicatedgeometry.Themethodisbasedoncomparisonbetweenmeasurementsofforce-deflectionorstiffnesscharacteristicsfordisc-shapedspecimens,withbondedboundaryconditionsatbothends,andFEMcalculationsofthoseconditionsasafunctionofPoissonratio.Thechoiceofthesingle-sampleortwo-samplemeasurementmethoddependsonwhetherthePoissonratioistobedeterminedaloneortogetherwiththeelasticmodulus.Sometimesthesematerialsareconsideredtobeincompressibleandbehavenon-linearlyespeciallyinlargestaticdeformations.Manycommercialcodesareavailabletosolvesuchproblems.ThisisnotthecaseinthispartofISO18437,whereonlysmalldeformationsobservedintypicalvibrationproblemsareconsideredand,hence,linearFEMcodesareadequateandmoreconvenient.ForthepurposesofthispartofISO18437,andwithintheframeworkofISO/TC108,thetermdynamicmechanicalpropertiesreferstothedeterminationofthefundamentalelasticproperties,e.g.thecomplexYoungmodulusandPoissonratio,asafunctionoftemperatureandfrequency.ThispartofISO18437isapplicabletoresilientmaterialsthatareusedinvibrationisolatorsinordertoreduce:a)transmissionofaudiofrequencyvibrationstoastructure,e.g.radiatingfluid-bornesound(airborne,structure-borne,orother);b)transmissionoflow-frequencyvibrationswhichcan,forexample,actuponhumansorcausedamagetostructuresorequipmentwhenthevibrationistoosevere.ThedataobtainedwiththemeasurementmethodsthatareoutlinedinthispartofISO18437andfurtherdetailedinISO18437-2toISO18437-4canbeusedfor:designofefficientvibrationisolators;selectionofanoptimumresilientmaterialforagivendesign;theoreticalcomputationofthetransferofvibrationsthroughisolators;informationduringproductdevelopment;productinformationprovidedbymanufacturersandsuppliers;qualitycontrol.
【中国标准分类号】:Z32
【国际标准分类号】:17_160
【页数】:20P.;A4
【正文语种】:英语