简介:Ahighlyreliableinterfaceofself-alignedbarrierCuSiNthinlayerbetweentheCufilmandthenano-porousSiC:H(p-SiC:H)cappingbarrier(k=3.3)hasbeendevelopedinthepresentwork.Withtheintroductionofself-alignedbarrier(SAB)CuSiNbetweenaCufilmandap-SiC:Hcappingbarrier,theinterfacialthermalstabilityandtheadhesionoftheCu/p-SiC:Hfilmareconsiderablyenhanced.AsignificantimprovementofadhesionstrengthandthermalstabilityofCu/p-SiC:H/SiOC:Hfilmstackhasbeenachievedbyoptimizingthepre-cleanstepbeforecap-layerdepositionandbyformingtheCuSiN-likephase.ThiscaplayeronthesurfaceoftheCucanprovideamorecohesiveinterfaceandeffectivelysuppressCuatommigrationaswell.
简介:Inthispaper,stochasticglobalexponentialstabilitycriteriafordelayedimpulsiveMarkovianjumpingreaction-diffusionCohen-Grossbergneuralnetworks(CGNNsforshort)areobtainedbyusinganovelLyapunov-Krasovskiifunctionalapproach,linearmatrixinequalities(LMIsforshort)technique,It?formula,Poincar′einequalityandHardy-Poincaréinequality,wheretheCGNNsinvolveuncertainparameters,partiallyunknownMarkoviantransitionrates,andevennonlinearp-Laplacediffusion(p>1).ItisworthmentioningthatellipsoiddomainsinRm(m≥3)canbeconsideredinnumericalsimulationsforthefirsttimeowingtothesyntheticapplicationsofPoincar′einequalityandHardy-Poincar′einequality.Moreover,thesimulationnumericalresultsshowthateventhecorollariesoftheobtainedresultsaremorefeasibleandeffectivethanthemainresultsofsomerecentrelatedliteraturesinviewofsignificantimprovementintheallowableupperboundsofdelays.
简介:Integrinανβ6isexpressedatanundetectablelevelinnormaltissues,butisremarkablyupregulatedduringmanypathologicalprocesses,especiallyincancerandfibrosis.Noninvasiveimagingofintegrinανβ6expressionusingaradiotracerwithfavorableinvivopharmacokineticswouldfacilitatediseasediagnosisandtherapymonitoring.Throughdisulfide-cyclizedmethod,wesynthesizedinthisstudy,anewintegrinανβ6-targetedcyclicpeptide(denotedascHK),andradiolabeleditwith99mTc.Theabilityoftheresultingradiotracer99mTc-HYNIC-cHKtodetectintegrinανβ6expressioninpancreaticcancerxenograffsandidiopathicpulmonaryfibrosiswasevaluatedusingsmall-animalsingle-photonemissioncomputedtomography(SPECT)/computedtomography(CT).99mTc-HYNIC-cHKshowedsignificantlyimprovedinvivometabolicstabilitycomparedtothelinearpeptide-basedradiotracer99mTc-HYNICHK.99mTc-HYNIC-cHKexhibitedsimilarbiodistributionpropertiesto99mTc-HYNIC-HK,butthetumorto-muscleratiowassignificantlyincreased(2.99±0.87vs.1.82±0.27,P<0.05).High-contrastimagesofintegrinανβ6-positivetumorsandbleomycin-inducedfibroticlungswereobtainedbySPECT/CTimagingusing99mTc-HYNIC-cHK.Overall,ourstudiesdemonstratethat99mTc-HYNIC-cHKisapromisingSPECTradiotracerforthenoninya-siveimagingofintegrinανβ6inlivingsubjects.
简介:Li4Ti5O12(LTO)/carbonnanotubes(CNTs)compositematerialissynthesizedbasedonasolid-statemethodbysand-milling,spray-dryingandcalciningat8508CunderN2flow.TheLTO/CNTssampleswith1wt%and3wt%weightratioofCNTsadditionandthepristineLTOsampleareprepared.TherateperformanceandthethermalstabilityofthesesamplesareinvestigatedbasedonLiMn2O4(LMO)/LTOfull-cell.TheresultsshowthattheweightratioofCNTsadditionhasdistincteffectonLTOperformances.ThecompositematerialsofLTOcompositedCNTshavebetterperformanceathigh-rateduetotheintercalationenhancementbyconductivenetworkofCNTs.Atsecond,theoverchargingtemperatureresponseofthecell’ssurfacewith1wt%CNTsadditionisthelowest.Theparticlesizedistributionismeasuredandthemostuniformparticlesareobtainedwith1wt%CNTsaddition.ThistrendcouldexplainthatthemediumquantityofCNTsisoptimaltoimprovetheheatandmasstransferandpreventtheproblemsofcrystallitegrowinginterferenceandaggregationduringthecalcinationprocess.