體外反搏對(duì)犬動(dòng)脈血流量及剪切應(yīng)力混沌特性的影響.pdf

1、中國(guó)海洋大學(xué)碩士學(xué)位論文體外反搏對(duì)犬動(dòng)脈血流量及剪切應(yīng)力混沌特性的影響姓名：戴麗申請(qǐng)學(xué)位級(jí)別：碩士專(zhuān)業(yè)：通信與信息系統(tǒng)指導(dǎo)教師：王懷陽(yáng)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