简介:AIM:Topredictthevisualoutcomeinpatientsundergoingmacularholesurgerybytwonovelthree-dimensionalmorphologicalparametersonopticalcoherencetomography(OCT):arearatiofactor(ARF)andvolumeratiofactor(VRF).METHODS:Aclinicalcaseserieswasconducted,including54eyesof54patientswithanidiopathicmacularhole(IMH).EachpatienthadanOCTexaminationbeforeandaftersurgery.Morphologicalparametersofthemacularhole,suchasminimumdiameter,basediameter,andheightweremeasured.Then,themacularholeindex(MHI),tractionalholeindex(THI),andholeformfactor(HFF)werecalculated.Meanwhile,novelpostoperativemacularhole(MH)factors,ARFandVRFwerecalculatedbythree-dimensionalmorphology.Bivariatecorrelationswereperformedtoacquireasymptoticsignificancevaluesbetweenthesteadybestcorrectedvisualacuity(BCVA)aftersurgeryand2D/3DargumentsofMHbythePearsonmethodwithtwo-tailedtest.Allsignificantfactorswereanalyzedbythereceiveroperatingcharacteristic(ROC)curveanalysisofSPSSsoftwarewhichwereresponsibleforvisionrecovery.ROCcurvesanalyseswereperformedtofurtherdiscussthedifferentparametersonthepredictionofvisualoutcome.RESULTS:Themeanandstandarddeviationvaluesofpatients'age,symptomsduration,andfollow-uptimewere64.8±8.9y(range:28-81),18.6±11.5d(range:2-60),and11.4±0.4mo(range:6-24),respectively.Steady-postBCVAanalyzedwithbivariatecorrelationswasfoundtobesignificantlycorrelatedwithbasediameter(r=0.521,P<0.001),minimumdiameter(r=0.514,P<0.001),MHI(r=-0.531,P<0.001),THI(r=-0.386,P=0.004),HFF(r=-0.508,P<0.001),andARF(r=-0.532,P<0.001).Othercharacteristicparameterssuchasage,durationofsurgery,height,diameterholeindex,andVRFwerenotstatisticallysignificantwithsteady-post-BCVA.Accordingtoareaunderthecurve(AUC)values,valuesofARF,MHI,HFF,minimumdiameter,THI,andbasediameterare0.806,0.772,0.750,0.705,0.690,and0.686,respectively.However,Steady-post-BCVAanalysiswithbivar
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简介:ThedevelopmentoftheHalfWaveResonator(HWR010)isbasedontheChinaADSproject.TheHWR010operatesat162.5MHzandcanprovidemorethan0.78MVofacceleratingvoltagepercavityforprotonwithopt=0.10.ThegoaloftheRFpropertiesistogetalowerheatloadandahigheracceleratinggradient,whicharedeterminedbyahigherR/Q0andlowerpeaksurfacefields(Bpk/EaccandEpk/Eacc).InordertooptimizetheHWRgeometryparameters,CST-MWSisusedtoconducttheRFsimulation.TheoptimizedRFparametersareshowinTable1.
简介:Thefinitevolumemethod(FVM)hasmanyadvantagesin2-Dshallowwaternumericalsimulation.Inthisstudy,thefinitevolumemethodisusedwithunstructuredtriangulargridstosimulatethetidalcurrents.TheRoeschemeisappliedinthecalculationoftheintercellnumericalflux,andtheMUSCLmethodisintroducedtoimproveitsaccuracy.Thetimeintegralisatwo-stepschemeofforecastandrevision.Fortheverificationofthepresentmethod,theStoker'sproblemiscalculatedandtheresultiscomparedwiththemathematicallyanalyticsolutions.Thecomparisonindicatesthatthemethodisfeasible.Aseaareaofaportisusedasanexampletotestthemethodestablishedhere.Theresultshowsthatthepresentcomputationalmethodissatisfactory,anditcouldbeappliedtotheengineeringfields.
简介:and satellite element 1.,and the satellite element 1. a hybrid type form of  ,for the element
简介:fig. 4(a) water surface elevation for a circular dam-break circular dam-break,fig. 3(a) water surface elevation for a rectangular dam-break  ,fig. 4(c) velocity field for a circular dam-break
简介:Excessmolarvolume(VE)dataonbinaryliquidmixturesofmethylheptenone(MHO)withmethanol,ethanol,n-propanolorn-butanolhavebeendeterminedfromthedensitymeasurementsat298.15Kandatmosphericpressure.ThevaluesofVEinallthesystemsovertheentirecompositionrangearequantifiedbytheRedlich-Kisterequation.TheeffectsofthechainlengthofalkanolsonVEarediscussed.