简介：Inthispaper,themodifiedextendedtanhmethodisusedtoconstructmoregeneralexactsolutionsofa(2+1)-dimensionalnonlinearSchr¨odingerequation.WiththeaidofMapleandMatlabsoftware,weobtainexactexplicitkinkwavesolutions,peakonwavesolutions,periodicwavesolutionsandtheir3Dimages.

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简介：ThispaperisdevotedtothemixedLegendrespectral-finiteelementapproximationofthethree-dimensional,non-periodic,unsteadyNavier-Stokesequations.Aclassoffullydiscreteschemesareconstructedwithartificialcompression.Thegeneralizedstabilityandconvergenceareprovedstrictlyontheassumptionthatthetwo-dimensionalinf-supconditionofthefiniteelementapproximationissatisfied.

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简介：Amongexistingremotesensingapplications,land-basedX-bandradarisaneffectivetechniquetomonitorthewavefields,andspatialwaveinformationcouldbeobtainedfromtheradarimages.Two-dimensionalFourierTransform(2-DFT)isthecommonalgorithmtoderivethespectraofradarimages.However,thewavefieldinthenearshoreareaishighlynon-homogeneousduetowaverefraction,shoaling,andothercoastalmechanisms.Whenappliedinnearshoreradarimages,2-DFTwouldleadtoambiguityofwavecharacteristicsinwavenumberdomain.Inthisarticle,weintroducetwo-dimensionalWaveletTransform(2-DWT)tocapturethenon-homogeneityofwavefieldsfromnearshoreradarimages.Theresultsshowthatwavenumberspectraby2-DWTatsixparallelspacelocationsinthegivenimageclearlypresenttheshoalingofnearshorewaves.Wavenumberofthepeakwaveenergyisincreasingalongtheinshoredirection,anddominantdirectionofthespectrachangesfromSouthSouthWest(SSW)toWestSouthWest(WSW).Toverifytheresultsof2-DWT,waveshoalinginradarimagesiscalculatedbasedondispersionrelation.Thetheoreticalcalculationresultsagreewiththeresultsof2-DWTonthewhole.Theencouragingperformanceof2-DWTindicatesitsstrongcapabilityofrevealingthenon-homogeneityofwavefieldsinnearshoreX-bandradarimages.

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简介：Withthebirthofgraphenewithfasnicatingproperties,noveltwo-dimensionalnanomaterialshaveobtainedconsiderabledevelopmentsinthelastdecade.Amongthem,BNnanosheetshavebeenintensivelyinvestigatedbecauseoftheirlargeelasticmodulus,highmelting-point,superbthermalconductivityandlargedirectbandgap,whichcanbeusedinultraviolet-lightemitter,

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简介：在这份报纸，我们在公制的Lp(R)(1p)得到平均-B宽度和Sobolev班Brp(R)的无限的维的-G宽度的准确价值并且获得准确(N)和强壮的asymptotic(>1)在公制的Lq的Sobolev牛肉熏香肠班Wrpq(R)的无限的维的-G宽度的结果在公制的Lqp(R)(1qp)的(R)和它的双盒子Wrp(R)。

简介：地上凿穿表面的3D倒置为复杂geo电的模型的电的数据仍然是在地球物理的探索的一个挑战性的问题。我们为3D倒置开发了一个节目到地上凿穿表面电的数据基于伪分析的近似(质量保证)并且re加权调整结合坡度方法(RRCG)用视觉Fortran6.5的算法。到向前当模特儿和Frechet衍生物计算的QA近似的申请戏剧性地加快计算。为理论模型的合成数据的试用计算证明程序快、高度精确。

简介：Inthiswork,wereporttheconstructionofthree-dimensional(3D)CdSnanosphere/graphenenetworksbyaone-stephydrothermalself-assemblyroute.The3Dgraphenenetworksnotonlyenhancethelightscattering,thankstotheinterconnected3Darchitecture,butalsoimprovethecrystallinityofdepositedCdSnanospheres,andatthesametimeprovideadirectelectronpathwaytoquicklyseparatethephotogeneratedelectron-holepairsfromCdS,whichthusdramaticallyimprovethephotocatalyticactivity.Theoptimized3DCdSnanosphe/graphenenetworkswith2wt%ofgraphenecouldproducemolecularhydrogenatarateof2310pmolgcatalyst^-1h^-1undervisible-lightillumination(λ>400nm).

简介：Weproposeacross-talk-freeintegralimaging3Ddisplaybasedonapyramidpinholearray.Thepyramidpinholearrayisusedtoprovideapointlightsourcearray.Sincethegeneratedpointlightsourcearrayisbehindatransmission-typedisplaypanelthatdisplaysanelementalimagearray,thepseudoscopicproblemcanberesolved.Bysettingtheappropriateparametersforthepyramidpinholearray,thecrosstalkcanbeeliminated.Weexperimentallyverifythereconstructionoftheorthoscopicandcross-talk-free3Dimagesusingtheproposed3Ddisplay.

简介：<正>Inthispaper.basedonlargedeviationformulasestablishedinstrongertopologygeneratedbyH(?)ldernorm,weobtainthefunctionallimittheoremsforC-Rincrementsofk-dimensionalBrownianmotioninH(?)ldernorm

简介：Exactsolutionsinelementaryfunctionsarederivedforthestressandelectricdisplacementintensityfactorsofahalf-planecrackinatransverselyisotropicpiezoelectricspaceinteractingwithvariousresultantsources,includingforcedipole,electricdipole,moment,forcedilatationandrotation.Suchforceandchargesourcesmaymodeldefectslikevacancies,foreignparticlesanddislocations.Thelocationsandorientationsofthestressandchargesourceswithrespecttothecrackarearbitrary.

简介：NumericalexperimentsofadjointvariationalassimilationhavebeenperformedusingtheknownLorenzsystem.Withtheincreaseofsensitivityofmodel’sinitialvalues,itismoreandmoredifficulttousetheadjointmethodtogettheinitialvalueswhichareconsistentwiththedynamicsofthefore-castmodel.Undersomecircumstancesthealgorithmcompletelyfails.Thisshowsthatfour-dimen-sionalassimilationisrelatedtothelimitofpredictability.Ontheotherhand.withtheincreaseofmodelequation’serror,theresultofvariationalassimilationmaybecomeworseandworsesothatthepredictionhasnomeaning.Butifthemodelparametersarecorrectedwhenvariationalassimilationismade,theforecastresultscanbegreatlyimprovedbasedonLorenzmodel.

简介：Petroleumsciencehasmaderemarkableprogressinorganicgeochcmistryandintheresearchintothetheoriesofpetroleumorigin,itstransportandaccumulation.Inestimatingtheoil-gasresourcesofabasin,theknowledgeofitsevolutionaryhistoryandespeciallythenumericalcomputationoffluidflowandthehistoryofitschangesunderheatisvital.Themathematicalmodelcanbedescribedasacoupledsystemofnonlinearpartialdifferenticalequationswithinitial-boundaryvalueproblems.Thisthesis,fromactualconditionssuchastheeffectoffluidcompressibilityandthethree-dimensionalcharacteristicoflarge-scalescience-engineeringcomputation,weputforwardakindofcharacteristicfiniteelementalternating-directionschemesandobtainoptimalorderestimatesinL~2normfortheerrorintheapproximateassumption.

简介：Two-dimensionalatomic-layeredmaterialisarecentresearchfocus,andsinglelayerTa2O5usedasgatedielectricinfield-effecttransistorsisobtainedviaassembliesofTa2O5nanosheets.However,theelectricalperformanceisseriouslyaffectedbyelectronicdefectsexistinginTa2O5.Therefore,spectroscopicellipsometryisusedtocalculatethetransitionenergiesandcorrespondingprobabilitiesfortwodifferentchargedoxygenvacancies,whoseexistenceisrevealedbyx-rayphotoelectronspectroscopyanalysis.SpectroscopicellipsometryfittingalsocalculatesthethicknessofsinglelayerTa2O5,exhibitinggoodagreementwithatomicforcemicroscopymeasurement.NondestructiveandnoncontactspectroscopicellipsometryisappropriatefordetectingtheelectricaldefectslevelofsinglelayerTa2O5.

简介：当起始的数据是小的时，这篇论文在2-dimensionalRiemannianmanifolds上与边界反馈认为半的全球光滑的解决方案的存在是线性schrödinger方程。作者证明全球答案的存在边界反馈取决于不仅，而且在一个Riemannian度量标准上，由原则部分和原来的度量标准的系数给歧管。特别地，authers证明系统的精力指数地腐烂。

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