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93 个结果
  • 简介:Inthepaper,generalizedordersandgeneralizedtypesofDirichletseriesintherighthalf-planearegiven.Someinterestingrelationshipsonmaximummodulus,themaximumtermandthecoefficientsofentirefunctiondefinedbyDirichletseriesofintherighthalf-planeareobtained.

  • 标签: DIRICHLET级数 半平面 广义 类型 订单 大模数
  • 简介:这篇文章的目的是在theta系列上讨论symplectic转变法律并且为symplectic操作员的踪迹给一些明确的公式。

  • 标签: θ级数 偶对映射 轨迹公式 数学
  • 简介:WewillstudythestrongapproximationbyFourier-Vilenkinseriesusingmatriceswithsomegeneralmonotonecondition.ThestrongVallee-Poussin,whichmeansofFourier-Vilenkinseriesarealsoinvestigated.

  • 标签: 傅立叶 强逼近 度量 单调 矩阵
  • 简介:一系列新奇phthalimides对七phytopathogenic真菌在vitro为抗真菌的活动作好准备并且测试:Rhizoctoniasolani,镰刀霉oxysporumf.sp。cucumerinum欧文,Botrytiscinerea,Fulviafulva,SclerotiniasclerotiorumdeBary,Phytophthoracapsici,Botryosphaeriaberengeriama。结果证明保持6-methylpyridin-2-yl的结构的那些混合物对Phytophthoracapsici和Botrytiscinerea展出了好活动。

  • 标签: 杀菌活性 ES系列 体外 抗真菌活性 合成 番茄叶霉病菌
  • 简介:IntheresearchofusingRadialBasisFunctionNeuralNetwork(RBFNN)forecastingnonlineartimeseries,weinvestigatehowthedifferentclusteringsaffecttheprocessoflearningandforecasting.Wefindthatk-meansclusteringisverysuitable.Inordertoincreasetheprecisionweintroduceanonlinearfeedbacktermtoescapefromthelocalminimaofenergy,thenweusethemodeltoforecastthenonlineartimeserieswhichareproducedbyMackey-Glassequationandstocks.Byselectingthek-meansclusteringandthesuitablefeedbackterm,muchbetterforecastingresultsareobtained.

  • 标签: 神经网络 非线性时间序列 聚类分析 预测 径向基函数神经网络 RBF网络
  • 简介:Theoreticalconsiderationwasproposedforthefrequencyresponseofaseriespiezoelectricsensortothepropertiesofliquidandverifiedexperimentally.Thiskindofsensorhassensitiveandselectivefrequencyresponsetothepermittivityandspecificconductivityofsolutionwithexcellentstability,andwasappliedtothedeterminationofmicro-contentofwaterinorganicsolvents.Thedetectionlimitis0.01g/Lindioxane.

  • 标签: PIEZOELECTRIC QUARTZ CRYSTAL chemical SENSOR micro-water-content
  • 简介:InthispaperweconsidertheapproximationforfunctionsinsomesubspacesofL~2bysphericalmeansoftheirFourierintegralsandFourierseriesonsetoffullmeasure.Twomaintheoremsareobtained.

  • 标签: SPHERICAL RIESZ proof 白朴 APPROXIMATION 小一
  • 简介:由交流在一个量点分子为激子包含本地化和纠纷的现象的Schroedinger方程电的Seld是调查的经分解。Schroedinger方程的新准确系列解决方案第一次被获得了。分析表情能进一步在交流下面在一个双联合的量点分子描述交往的电子洞对的动态行为电Geldaccurately。

  • 标签: 薛定谔方程 局域化 激发子 电场 量子论 动力学行为
  • 简介:benzothiazole衍生物的新系列被设计并且综合。最新综合的混合物对Escherichiacoli,葡萄球菌aureus和杆菌仙影拳为他们的抗菌剂活动被屏蔽。混合物6j和6o对E显示出最高的活动。coli和S。aureus。这些混合物的抗真菌的活动也对Candidaalbicans和曲霉属菌fumigatus被测试293。混合物4c,4g和6j对C展出了最高的活动。albicans。另外,混合物4a和6j对A显示了有希望的活动。fumigatus293。而混合物4a,6j和6p显示出中等活动,一样的混合物对ChromobacteriumviolaceumATCC12472为他们的察觉到antiquorum活动被检验。在里面综合混合物测试的vitrocytotoxicity对颈的癌症(Hela)和肾成纤维细胞癌症(COS-7)房间被执行线。结果显示所有测试混合物有IC50价值>50 ;对两根房间线的mol/L。分子的性质,毒性,药相似,和药获得混合物4a-c,5a,6g,h,6j,6l,6o和7c的侧面,d也被估计。

  • 标签: 下线 服务 迁移
  • 简介:Forthemulti-frequencyacousticanalysis,aseriesexpansionmethodhasbeenintroducedtoreducethecomputationtimeofthefrequency-independentparts,buttheRungephenomenonwillarisewhenthismethodisemployedinhighfrequencyband.Therefore,thismethodisimprovedbyanalyzingtheapplicationconditionandproposingtheselectionprincipleoftheseriestruncationnumber.Theargumentintervalcanbeadjustedwiththewavenumberfactor.Therefore,theproblemofunstablenumerationandpoorprecisioncanbesolved,andtheapplicationscopeofthismethodisexpanded.Thenumericalexampleofacousticradiationshowsthattheimprovedmethodiscorrectforacousticanalysisinwiderfrequencybandwithlessseriestruncationnumberandcomputationamount.

  • 标签: TRUNCATION INTERPOLATION UNSTABLE Runge expanded ARGUMENT
  • 简介:Thispaperpresentsamethodofconstructingamixedgraphwhichcanbeusedtoanalyzethecausalityformultivariatetimeseries.Weconstructapartialcorrelationgraphatfirstwhichisanundirectedgraph.Foreveryundirectededgeinthepartialcorrelationgraph,themeasuresoflinearfeedbackbetweentwotimeseriescanhelpusdecideitsdirection,thenweobtainthemixedgraph.Usingthismethod,weconstructamixedgraphforfuturessugarpricesinZhengzhou(ZF),spotsugarpricesinZhengzhou(ZS)andfuturessugarpricesinNewYork(NF).Theresultshowsthatthereisabi-directionalcausalitybetweenZFandZS,anunidirectionalcausalityfromNFtoZF,butnocausalitybetweenNFandZS.更多还原

  • 标签: 时间序列模型 因果关系 现货价格 食糖 期货 郑州