简介:Anevaluationmodelofaninternationalventureinvestmentprojectonthebasisoffuzzymatter-elementandcombinedweightmethodsisintroduced.First,thecompoundfuzzymatter-elementofoptimalsubordinatedegreeisconstructedontheprincipleofthebigger-more-optimalortheless-more-optimaldependingontheactualevaluationindicators,andcombinedwithstandardfuzzymatter-elementtoformadifference-squarefuzzymatter-element.Secondly,acombinedweightiscalculatedbybothinformationent...
简介:Gaitrecognitionisthekeyquestionoffunctionalelectricalstimulation(FES)systemcontrolforparaplegicwalking.Anewrisk-tendency-graph(RTG)methodwasproposedtorecognizethestabilityinformationinFES-assistedwalkinggait.Themaininstrumentwasaspecializedwalkerdynamometersystembasedonamulti-channelstrain-gaugebridgenetworkfixedonthewalkerframe.Duringwalkingprocess,thissystemcollectedthereactionforcesbetweenpatient'supperextremitiesandwalkerandconvertedthemintoRTGmorphologiccurvesofdynamicgaitstabilityintemporalandspatialdomains.TodemonstratethepotentialusefulnessofRTG,preliminaryclinicaltrialsweredonewithparaplegicpatients.Thegaitstabilitylevelsoftwowalkingcaseswith4-and12-weekFEStrainingfromonesubjectwerequantified(0.43and0.19)fromtheresultsoftemporalandspatialRTG.Relevantinstablephasesingaitcycleanddangerousinclinationsofpatient'sbodyduringwalkingprocesswerealsobroughtforward.Inconclusion,thenewRTGmethodispracticalfordistinguishingmoreusefulgaitstabilityinformationforFESsystemcontrol.