简介：<正>Successiswonderful,nobodycandenythis.However,Ibelievethatfailurecanalsobedesirable.It’sonlyamatterofperception.Failure

简介：Byexpandingtheperturbationofcovariancematrixinthepowersofer-rorterm,theinfluencefunctionsforfivecanonicalmeasurementsinCCAaredevel-opedandthreesampleversionsaregiven.Forgeneralizedcorrelationcoefficientp_z,theinfluencefunctionisaquadraticformofr.v.z,anditsdistributionisconsidered.ApracticalexampleiUustratestheutilityoftheproposedinfluencefunctions.

简介：Toensurethatlimitedresourcesareallocatedmoreeffectivelytoreducemarinerisks,formalsafetyassessment(FSA),aproactivemethod,isintroducedinplanningavesseltrafficsystem(VTS).BasedonthedataofWuhanport,somenewsolutionsbasedonrisk-indicesareputforward.Theweightednumberoftrafficaccidentsispredictedafterthefutureweightedvesseltrafficvolumeisestimatedbyanalyzingthetrendoftradedevelopment.Toanalyzeriskacceptability,theas-low-as-reasonably-practica...

简介：Thispaperpresentsamethodologytodeterminethreedataquality(DQ)riskcharacteristics:accuracy,comprehensivenessandnonmembership.Themethodologyprovidesasetofquantitativemodelstoconfirmtheinformationqualityrisksforthedatabaseofthegeographicalinformationsystem(GIS).FourquantitativemeasuresareintroducedtoexaminehowthequalityrisksofsourceinformationaffectthequalityofinformationoutputsproducedusingtherelationalalgebraoperationsSelection,Projection,and...

简介：Inordertoensurethehighestsafetyrequirements,nuclearpowerplantstructures(thecontainmentstructures,thefuelstoragesandtransportationsystems)shouldbeassessedagainstallpossibleinternalandexternalimpactthreats.Theinternalimpactthreatsincludekineticmissilesgeneratedbythefailureofhighpressurevesselsandpipes,thefailureofhighspeedrotatingmachineriesandaccidentaldrops.Theexternalimpactthreatsmaycomefromairbornemissiles,aircraftimpact,explosionblastandfragments.Theimpacteffectsofthesethreatsonconcreteandsteelstructuresinanuclearpowerplantarediscussed.Methodsandproceduresfortheimpactassessmentofnuclearpowerplantsareintroduced.Recentstudiesonpenetrationandperforationmechanicsaswellasprogressesondynamicpropertiesofconcrete-likematerialsarepresentedtoincreasetheunderstandingoftheimpacteffectsonconcretecontainmentstructures.

简介：借助于改进裂口Hopkionson压力酒吧(SHPB)与轴预先迫使并且限制压力，沙岩的实验的二个系列被执行在资源的利用的功课期间研究岩石的失败模式在深。一个人在限制压力被修理，轴的压力是可变的条件下面。其它在限制压力变得的条件下面，轴的压力被修理。轴的静态的压力什么时候是低的，被发现样品在影响以后均匀地拆散，当轴的静态的压力高时，在碎片的尺寸有大不同，并且在在动态、静态的负担的联合下面的测试以后的样品的主要身体经常显示出V或X的类型。样品在有弹性的阶段是更结束颗粒的，影响做许多裂缝被产生并且发展，作为使样品更会裂开。在损坏舞台的起始的阶段，压力使一些成为的静电干扰在不发达的样品裂开，影响的角色在有弹性的阶段类似于那。在损坏舞台的中期或后期，在样品的这些裂缝足够地发展，影响主要加速样品的失败。样品的主要身体在由于限制压力的家影响在有弹性的阶段或损坏舞台的起始的阶段制止样品的侧面的形成以后显示出V或X的类型，样品的主要身体几乎在装载静态的压力的阶段形成了，在通常影响以后的结果类似于在轴的压力测试下面的那些。

简介：没有它的参考图象或失真类型的优先的知识，盲目图象质量评价(BIQA)能估计一幅弄歪的图象的感性的质量。在这份报纸，一个新奇BIQA模型在小浪领域被开发。就多决定和分离小浪变换(DWT)的band-passing特征而言，在力量光谱上的改进被提出，即，称的小浪力量光谱(WPS)评价。然后，方向性的WPS的概念被使用简化计算。而且，人的视觉系统(HVS)的一个旋转地对称的调整转移函数(MTF)作为一个过滤器综合，它做度量标准与人的视觉感觉和更多一致歧视。实验在实时数据库和三个另外的数据库上被进行，并且结果证明建议度量标准高度与主观评估被相关，它以有效性和坚韧性与另外的最先进的度量标准竞争很好。

简介：欧洲结构的正直评价过程(SINTAP)在焊接脚趾与一个假定嵌入的缺陷和表面缺陷被用于对API5LX65管道钢的焊接关节的评价。在缺省水平(水平())，评价点被从Charpy精力测试数据保存地估计破裂坚韧价值K_lc建立。同时，分析水平(基本水平)1基于破裂坚韧CTOD被使用。然后，二个评价层次被比较。所有评价点位于分析的失败线以内的评价结果表演铺平0并且t。管道的焊接关节因此是安全的。评价基于Charpy吸收了精力，这能被结束当另外的破裂坚韧数据不是可得到的时，是适用的，或不能容易被获得。结果是保守的。

简介：Aprobabilisticriskassessmentprocedureisdevelopedwhichcanpredictrisksofexplosiveblastdamagetobuiltinfrastructure,andwhencombinedwithlife-cyclecostanalysis,theprocedurecanbeusedtooptimiseblastmitigationstrategies.Thepaperfocusesonwindowglazingsincethisisaload-capacitysystemwhich,whensubjectedtoblastloading,hascausedsignificantdamageandinjurytobuildingoccupants.Structuralreliabilitytechniquesareusedtoderiveblastreliabilitycurvesforannealedandtoughenedglazingsubjectedtoexplosiveblastforavarietyofthreatscenarios.Theprobabilisticanalysesincludetheuncertaintiesassociatedwithblastmodelling,glazingresponseandglazingfailurecriteria.Damagerisksarecalculatedforanindividualwindowandforwindowsinthefacadeofamulti-storeycommercialbuilding.Thepapershowsanillustrativeexampleofhowthisinformation,whencombinedwithrisk-baseddecision-makingcriteria,canbeusedtooptimiseblastmitigationstrategies.

简介：Thewide-shallowcompositebucketfoundation(WSCBF)isanewtypeofoffshorewindpowerfoundationthatcanbebuiltonlandandrapidlyinstalledoffshore,therebyeffectivelyreducingtheconstructiontimeandcostsofoffshorewindpowerfoundation.Inthisstudy,thehorizontalbearingcapacityiscalculatedbyfiniteelementsimulationandcomparedwithtestresultstoverifythevalidityofresults.Inthisprocess,theverticalloadandbendingloadarerespectivelycalculatedbythefiniteelementsimulation.Undertheverticalloadeffect,thebucketfoundationandthesoilinsideareregardedasawhole,andthecorrespondingbucklingfailuremodeisobtained.Theultimateverticalbearingcapacityiscalculatedusingempiricalandtheoreticalformulas;thetheoreticalformulaisalsorevisedbyfiniteelementresults.Underbendingload,therotationalcenterofthecompositebucketfoundation(inaregionclosetothebucketbottom)graduallymovesfromtheleftofthecentralaxis(reversetoloadingdirection)tothenearbycompartmentboardsalongtheloadingdirection.TheH–Menvelopelineshowsalinearrelationship,anditisdeterminedthattheverticalandbendingultimatebearingcapacitiescanbeimprovedbyanappropriateverticalload.

简介：Anapproachispresentedtodealwithamulti-attributedecision-makingprobleminwhichtheattributeweightsareunknownandtheattributevaluestaketheformofuncertainlinguisticvariables.First,alinguisticassessmentstandardissetuptodealwiththeuncertainlinguisticattributes,andtheoperationlawsofuncertainlinguisticvariablesandtheuncertainlinguisticweightingaverage(ULWA)operatorareintroduced.Thenarankingformulaofuncertainlinguisticvariablesbasedonexpectation-var...