简介：Inasystem,Everycomponenthasitsuniquepositionwithinsystemanditsuniquefailurecharacteristics.Whenacomponent'sreliabilityischanged,itseffectonsystemreliabilityisnotequal.Componentreliabilitysensitivityisameasureofeffectonsystemreliabilitywhileacomponent'sreliabilityischanged.Inthispaper,thedefinitionandrelativematrixofcomponentreliabilitysensitivityisproposed,andsomeoftheircharacteristicsareanalyzed.Allthesewillhelpustoanalyseorimprovethesystemreliability.

简介：Validityandreliability,aswealllearnedinourfirstresearchmethodsclass,aretwoofthemostimportantqualitiesofanytest,measurementorassessment.Whencomparedwithvalidity,reliabilityisactuallymoreimportantsincewithoutit,therewouldbenovalidity.Sincereliabilityissoimportant,almostallresearchjournalstodayhavesomearticlesrelatedtoreliability.Unfortunately,manyofthesearticlesfailtoreport

简介：Theweightedreliabilityofnetworkisdefinedasthesumofthemultiplicationoftheprobabilityofeachnetworkstatebyitsnormalizedweightingfactor.Underacertainstate,whenthecapacityformsourcestosinktislargerthanthegivenrequiredcapacityCr,thenthenormalizedweightingfactoris1,otherwise,itistheratioofthecapacitytotherequiredcapacityCr.Thispaperproposesanewalgorithmfortheweightedreliabilityofnet-works,putsforwardtheconceptofsaturatedstateofcapacity,andsuggestsarecursiveformulaforexpandingtheminimalpathstobethesumofqualifyingsubsets.Inthenewalgorithm,theexpansionsoftheminimalpathsdon'tcreatetheirrelevantqualifyingsubsets,thusdecreasingtheunnecessaryexpandingcalculation.Comparedwiththecurrentalgorithms,thisalgorithmhastheadvantageofasmallamountofcomputationsforcomputerimplementa-tion.

简介：在设计应用，概率的可靠性理论看起来是一会儿然而，在许多情况中，精确概率的可靠性理论不能被认为实际事情的真实状态的模型同样足够、可信的最重要的方法。在这篇论文，当统计数据被发现不够时，我们开发了概率、非概率的可靠性理论的一个混血儿，它把结构的不明确的参数描述为间隔变量。由使用间隔分析，为计算结构的可靠性以及可靠性索引的间隔的一个新方法在这篇论文被介绍，并且传统的概率的理论与间隔分析被合并。而且，新方法保存传统的概率的可靠性理论的有用部分，但是在数据上移开它的严格的要求的限制获得。例子被举表明建议理论的可行性和有效性。

简介：In[5],manyinequalitiesforNBUEandNWUElifedistributionsaregiven.But,sincetherearesomebasicobservationswhichdonothold(seeSection1fordetails),manyresultsobtainedin[5]arenottrue.Inthisnoteweproposesomeremediesandgivesomenewresults.

简介：Thisarticlepresentsanapplicationofaproceduretomodifytheintensitydistributionbyassessingthereliability.Therearetwopotentialpossibilitiesthatmayinfluencetheintensitydistribution:(1)Fortheinterpolationerror,wegenerateameasuredgridacrossthecalculationregion.Whenthepointtostationspacingis\5km,weconsidertheresultsprecise;however,somepointshavelessprecisionbecausethesearefartherfromthecorrespondingstations.Whenthespacingisbetween5and50km,weconsidertheresultsimpreciseanddefineareliabilityfactorthatcorrelateswiththedistance.(2)Somerecordsmayhaveerrorsthatresultfromlocalsiteconditions,equipmentproblems,orsomedisturbancesuchaslightningstroke,whichwillleadtosomegridpointshavinganincorrectintensity.Weregresstheattenuationrelationforsiteswithabnormalintensitiesandconsidertheresultstobeaccuratewhenthestandarddeviation(STD)is\randinaccuratewhentheSTDis[2r.WethendefineareliabilityfactortocorrelatewithSTDbetweenrand2r,suchthattheintensitydistributionisinaccordwithbothwavepropagationtheoryandtheinvestigationintensity.

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简介：AbstractPurpose:The reliability of trauma coding is essential in establishing the reliable trauma data and adopting efficient control and monitoring policies. The present study aimed to determine the reliability of trauma coding in educational hospitals affiliated to Shahid Beheshti University of Medical Sciences, Iran.Methods:In this descriptive cross-sectional study, 591 coded medical records with a trauma diagnosis in 2018 were selected and recoded by two coders. The reliability of trauma coding was calculated using Cohen's kappa. The data were recorded in a checklist, in which the validity of the content had been confirmed by experts.Results:The reliability of the coding related to the nature of trauma in research units was 0.75—0.77, indicating moderate reliability. Also, the reliability of the coding of external causes of trauma was 0.57—0.58, suggesting poor reliability.Conclusion:The reliability of trauma coding both in terms of the nature of trauma and the external causes of trauma does not have a good status in the research units. This can be due to the complex coding of trauma, poor documentation of the cases, and not studying the entire case. Therefore, holding training courses for coders, offering training on the accurate documentation to other service providers, and periodically auditing the medical coding are recommended.

简介：Withtherapidprogressofcomponenttechnology,thesoftwaredevelopmentmethodologyofgatheringalargenumberofcomponentsfordesigningcomplexsoftwaresystemshasmatured.But,howtoassesstheapplicationreliabilityaccuratelywiththeinformationofsystemarchitectureandthecomponentsreliabilitiestogetherhasbecomeaknottyproblem.Inthispaper,thedefectsinformaldescriptionofsoftwarearchitectureandthelimitationsinexistedmodelassumptionsarebothanalyzed.Moreover,anewsoftwarereliabilitymodelcalledComponentInteractionMode(CIM)isproposed.Withthismodel,theproblemforexistedcomponent-basedsoftwarereliabilityanalysismodelsthatcannotdealwiththecasesofcomponentinteractionwithnon-failureindependentandnon-randomcontroltransitionisresolved.Atlast,thepracticeexamplesarepresentedtoillustratetheeffectivenessofthismodel.

简介：Asystemreliabilityestimationmethodforspatialjacketplatformsisdevelopedinthispaper,Thejacketplatformismodeledintothree-dimensionalassemblyofspatialbeamandplateelementsinFi-niteElementMethod(FEM).Thelimitfailurestatescorrespondtocollapseofaseriesofstructuralmem-berswhichareidentifiedbyengineeringdesigncriteria.Inthispaperthefollowingaspectsaretakenintoaccount:thepunchingshearandbuckiingfailuresinmemberfailuremodesforthetubularjointsandtubu-larcolumnsrespectively;incrementalloadingapproachforestablishmentofthesafetymarginequationsofsystemfailure;thealgorithmofenumeratingsignificantfailuremodesforthestructuralsystemsandotherconcepts,suchasthefalsefailuremodeandthevirtuallimitstate.Thefinalworkisdevotedtothereliabili-tyanalysisforapracticaljacketplatformpresentlyputintooperationontheBohaiSea.Thecomputedre-sultsshowsthatmethodsuggestedinthispaperisfeasibleandeffectivefor

简介：Thepapermakesastudyonsixparts,namely,speaking,writing,sentence,cloze,readingandlisteninginanEnglishtestwithstudentsattwodifferentproficiencylevels.Theirscoredatawerestudiedthroughreliabilityanalysis,validityanalysis,factoranalysisandanalysisofvariance(ANOVA)toconductthevalidationofthisEnglishtest.Thepapertriestoexplorethescoredatainternalconsistency,groupdifferencerecognitiontomaintaintheobjectivityandaccuracyinEnglishtests.

简介：Allhumanslearnabouttheworldthroughfivesensesastheyarethefirstcontactpointwheninformationentersthebrain.TheVARKlearningstyleinventoryisthesoleassessmenttooltomeasureanindividual’slearningpreferenceintermsofsenses.VARKrepresentsvisual(V),aural(A),read/write(R),andkinaesthetic(K).TheaimofthisstudywastoexaminethereliabilityofVARKquestionnaireversion7.8inChineselearnerswithfourmultitrait-multimethodconfirmatoryfactoranalysis(MTMM-CFA)modelsforfurtherresearchstudy.Atotalof177Chinesenursingundergraduateswererecruited.Theresultsshowedthatcorrelatedtrait-correlateduniqueness(CTCU)wasthebest-fitmodeltotheVARKscoresandthereliabilityestimatesforthescoresoftheVARKsubscalesrangedfrom0.69-0.84.Amongthese177nursingstudents,therewere46(26%)visuallearners,27(15.3%)aurallearners,11(6.2%)read/writelearners,21(11.9%)kinaestheticlearners,and72(40.7%)multi-modallearners.

简介：Overthepast20years,thelevelofpowerreliabilityinChinahasbeenraisedsubstantially.Averageequivalentavailabilityfactorof100-MW-classthermalpowerunitswentupfrom79.93%to91.70%intheperiodof1986-2004.Averageunplannedoutagetimesperunitcamedownfrom7.85to2.1.RSIofurbanusersrosefrom98.90%to99.82%intheperiodof1991-2004,correspondingtoadecreaseofaverageannualinterruptiondurationfrom96.55hoursto15.81hours.

简介：ThispaperpresentsthedataonoperationreliabilityindicesandrelevantanalysestowardChina'sconventionalpowergeneratingunitsin2009.Theunitsbroughtintothestatisticalanalysisinclude100-MWorabovethermalgeneratingunits,40-MWorabovehydrogeneratingunits,andallnucleargeneratingunits.Thereliabilityindicesembodiedincludeutilizationhours,timesandhoursofscheduledoutages,timesandhoursofunscheduledoutages,equivalentforcedoutagerateandequivalentavailabilityfactor.

简介：Thesystemwhichconsistsofareliablemachine,anunreliablemachineandastoragebufferwithinfinitemanyworkpieceshasbeenstudied.Theexistenceofauniquepositivetime-dependentsolutionofthemodelcorrespondingtothesystemhasbeenobtainedbyusingC0-semigrouptheoryoflinearoperatorsinfunctionalanalysis.

简介：Inthispaper,weanalyzethefuzzyreliabilityofparalleling-seriessystem,focusingonthesituationoftheearlyfailuremode.TheearlyfailuremodeoffuzzyreliabilitymainlyobeystheWeibulldistribution.Basedonthis,weobtainthedistributionfunction,densityfunction,failurefunction,reliabilityfunctionandtheformulaofthemeantimetofailure.Fortheparalleling-seriessystemcomposedofmultiplecomponents,C1j,C2j,Cnj…,Cnj(j=1,2,…,K),especiallywhenη=1,mij=m,i=1,…n,j=1,2,…,k,wealsoobtainthecorrespondingformulas.Finally,weciteanexampletoverifytheformulaanddeepentheunderstanding.

简介：Inthispaper,weanalyzethefuzzyreliabilityofparallelingsystem,focusingonthesituationoftheearlyfailuremode.TheearlyfailuremodeoffuzzyreliabilitymainlyobeystheWeibulldistribution.Basedonthis,weobtainthedistributionfunction,densityfunction,failurefunction,reliabilityfunctionandtheformulaofthemeantimetofailure.Fortheparallelingsystemcomposedofmultiplecomponents,C1,C2,???,Cn,especiallywhenη=1,wealsoobtainthecorrespondingformulas.Finally,weciteanexampletoverifytheformulaanddeepentheunderstanding.

简介：Inthispaper,themainproblemsconcerningreliabilitydesignofoffshoreplatformstructurearedescribedandthegeneralstepsfortheuseofSafetyCoefficientMethodarepresented.

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简介：到动态系统的可靠性分析的僵绳点近似的应用程序被调查。处于可靠性问题的失败事件在规定阀值水平上作为一个单个性能变量的exceedance被提出。僵绳点近似技术提供一种选择估计表演变量的累积分布函数(CDF)。失败概率在指定阀值作为补充CDF的价值被获得。方法要求从取决于产生性能变量的功能(CGF)的cumulant的一个简单代数学的方程计算僵绳点。为用表演变量的随机的样品计算僵绳点的一个方法被介绍。僵绳点近似的适用的区域详细被讨论。A10故事砍与白噪音刺激造模型说明建议方法论的精确性和效率。