简介: 技术分析和基础分析都尝试预测股价今后的走势,他们决定市场的整 体走势还是公司本身对股价的影响比较大,基础分析则研究所有可能影响股价的因素
简介:the right stock at a right price. However, 技术分析和基础分析都尝试预测股价今后的走势,a stock with a low PE ratio is
简介:TheproblemofpicksequencingintherotaryrackS/Rsystem(PPS-RRS)isinvestigatedwiththeobjectiveofminimizingtheexecutiontime.TherotaryrackS/RsystemconsistsofoneS/Rmachineandmultiplelevelsofcarouselsthatcanrotateindependentlyinbi-directions.Theroutingpolicy,namelythedecisiononthestorageorretrievalsequence,dominatestheefficiencyandthethroughputforsuchS/Rsystems,duetothecomplicatedrelationshipbetweenalllevelsofcarouselsandtheS/Rmachine.ForthepurposeofoptimizingthePPS-RRS,acomputationalmodelisdevelopedintermsofexecutiontimeforpickingmultipleitemsinonetrip.CharacteristicsofthePPS-RRSareanalyzedandalocalsearchheuristicbasedonanewlyproposedneighborhoodispresented.Integratedwiththeproposedlocalsearchprocedureanewhybridgeneticalgorithmisdeveloped.Experimentalresultsdemonstratethestructurecharacteristicsofgoodsequenceandtheefficiencyandeffectivenessoftheproposedsequencingalgorithms.
简介:C-HR是丰田全球战略SUV,风靡全球60多个国家和地区,深受世界年轻族群青睐。如今,这股潮流风暴来到了中国。这款“潮流新物种”由广汽丰田正式导入国内,并于4月份北京车展上亮相。它“潮”感十足、“帅”气逼人,拥有超强“攻击力”,势必成为时下富于创意与活力的90后们的爆款“潮牌单品”。秉承“制造更好的汽车”理念,C-HR是基于TNGA架构全新开发的首款SUV车型,以高级别平台水准打造,汇聚TNGA创新设计和顶尖科技。这让
简介:Shannonentropyintimedomainisameasureofsignalorsystemuncertainty.Whenbasedonspectrumentropy,Shannonentropycanbetakenasameasureofsignalorsystemcomplexity.Therefore,waveletanalysisbasedonwaveletentropymeasurecansignifythecomplexityofnon-steadysignalorsysteminbothtimeandfrequencydomain.Inthispaper,inordertomeettherequirementsofpost-analysisonabundantwavelettransformresultdataandtheneedofinformationmergence,thebasicdefinitionofwaveletentropymeasureisproposed,correspondingalgorithmsofseveralwaveletentropies,suchaswaveletaverageentropy,wavelettime-frequencyentropy,waveletdistanceentropy,etc.areputforward,andthephysicalmeaningsoftheseentropiesareanalyzedaswell.TheapplicationprincipleofwaveletentropymeasureinElectroEncephaloGraphy(EEG)signalanalysis,mechanicalfaultdiagnosis,faultdetectionandclassificationinpowersystemareanalyzed.Finally,takethetransmissionlinefaultdetectioninpowersystemforexample,simulationsintwodifferentsystems,a10kVautomaticblockingandcontinuouspowertransmissionlineanda500kVExtraHighVoltage(EHV)transmissionline,arecarriedout,andthetwomethods,waveletentropyandwaveletmodulusmaxima,arecompared,theresultsshowfeasibilityandapplicationprospectofthesixwaveletentro-pies.