简介:Inthispaper,wegiveaconvergencetheoremanderrorestimatesforaniterationmethodundernewKantorovitch-Ostrowskitypeconditionusingtheinformationofhigherderivativesatinitialpoints.Comparedwiththecorrespondingstudyin[3],theconvergencedeterminationisestablishedunderoneglobalcondition,insteadoftwo,onthefunction.
简介:近似却分析的答案粘滞Rayleigh-Taylor不稳定性(RTI)最近广泛地由于它的清澈在理论、数字的调查被使用了。在这份报纸,生长率为的一个修改分析答案粘滞不可压缩的液体的RTI基于一个近似方法被获得。它的精确性数字地被验证显著地为不同粘性比率和Atwood数字在整个波浪数字范围与以前的那比较被改善。而且,这个答案被扩展为粘滞包括集中散开效果的RTI。
简介:Inthispaper,wediscusstheconvergenceoftheBroydenalgorithmswithrevisedsearchdirection.Undersomeinexactlinesearches,weprovethatthealgorithmsaregloballyconvergentforcontinuouslydifferentiablefunctionsandtherateoflocalconvergenceofthealgorithmsisone-stepsuperlinearandn-stepsecond-orderforuniformlyconvexobjectivefunctions.
简介:Ithasbeenlongarguedthattheconfinementcouldbeexplainedbymonopolecondensation,throughthedualMeissnereffect(Numbu,Mendelstain,tHooft,Polyakov)~9[1,2]).Thedual-superconductorpictureofconfinement,relysonthecondensationofmonopole-monopolepairs.DuetothedualMeissnereffect,thefieldbetweentwocoloredsourceswouldbesqueezedintoafluxtube(string)withenergyproportionaltoitslength.Tostudytheproblem,wehavetofindsomenewclue.
简介:TheannealingbehaviorofAgnanoparticlesinsilicawithandwithoutdefectswasinvestigatedinthisstudy.SilicasampleswithandwithoutArionpre-irradiationwereimplantedwithAgionsandthenannealedattemperaturefrom300to850℃.UV-VISspectroscopyandTEMwereusedtocharacterizetheopticalabsorbancepropertyandsizedistributionofAgnanoparticles,respectively.OpticalabsorbanceresultsshowthattheabsorbanceintensityofSPR(SurfacePlasmonResonance,SPR)peakfromAgnanoparticlesinthesamplewithpre-irradiationisstrongerthaninthesamplewithoutpre-irradiation,whichindicatesthatthedefectsproducedbypre-irradiationpromptthenucleationofAgnanoparticles.Duringannealing,theSPRpeakshiftstoshortwavelengthdirection,asshowninFig.1.