體外反搏對犬動脈血流量及剪切應(yīng)力混沌特性的影響.pdf

1、中國海洋大學(xué)碩士學(xué)位論文體外反搏對犬動脈血流量及剪切應(yīng)力混沌特性的影響姓名：戴麗申請學(xué)位級別：碩士專業(yè)：通信與信息系統(tǒng)指導(dǎo)教師：王懷陽20070601EffectsofEECPonchaoscharacteristicofbloodfIowandshearstressindog’sarteriesAbstractChaosisoneofthemostimportantscientificdiscoveriesinthe20thcentu

2、ry，andithasbeenregardedasthethirdrevolutioninthephysicsafterthetheoryofrelativityandthequantummechanicsThechaostheoryisoneofthemostchallengingresearchtopicsintheworldanditsapplicationhasreachedabroaderareaCounterpulsatio

3、ntreatsmyocardialischemia1eadingtotheimprovementofbloodperfusionatvariousorgans，resultinginthechangeofimerunlshearstressofbloodvessels，henceadjustingthefunctionofendothelialceils，andpromotingtherepairmentofinjuredendothe

4、lialcellsTherefore，investgatingtheeffectsofEECPonchaoscharacteristicofbloodflowandshearstresssignificantlycontributestOstudyingthetherapeuticmechanismsofmyocardialischemiatreatedbyEECRInthisdissertation，chaostheoryandthe

5、phasespacereconstructionhavebeensystematicallyelucidated；tWOeffiectivemethodsofchoosingdelaytimeandembedingdimensionarecompared；thedefinitionofpowerspectrum，attractorcorrelationdimension，Lyapunovexponentareintroduced，and

6、theseexponentswereappliedinourexperimentalanalysisThefcamreofbloodflowandshearstresshasbeenstudiedtOgetinsightintotherulesofEECPonthechaosCharacteristicofbloodflowandshearstressunderdifferentexperimentalconditionsTheresu

7、ltsshowedthatthesignalsofbloodflowandshearstressarehighdimensionalchaosandobeycertaindynamicallawindicatingthatthehemodynamicsystemischaossystemCorrelationdimensionandthelargestLyapunovexponentofthesignalshaveobviouslych