学科分类
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5 个结果
  • 简介:Aself-consistenthybridMonteCarloFluidmodelispresentedtodescribethenitrogendcglowdischarge.ThemovementoffastelectronsissimulatedbytheMonteCarlomethodwhilethedynamicsofslowelectronsandionsisbyfluidequations.Thespatialfeaturesofthechargedspeciesandthecorrespondingelectricfieldthroughoutthedischargehavebeencalculated,whichincludethecreationratesofionsandslowelectrons,densitiesofthechargedspecies,theelectricfieldandthepotentialdistribution.Thesecloselyrelatedresultscangiveaselfconsistentexplanationofthedischargecharacteristicsthroughoutthespaceofnitrogendcglowdischarge.Thecalculatediondensityisalsocomparedwiththecorrespondingexperimentalresult.

  • 标签: 氮直流辉光放电 自洽描述
  • 简介:Wepresentintegral-typeDarbouxtransformationforthemKdVhierarchyandforthemKdVhierarchywithself-consistentsources.IncontrastwiththenormalDarbouxtransformation,theintegral-typeDarbouxtransformationscanoffernon-auto-Backlundtransformationbetweentwo(2n+1)-thmKdVequationswithself-consistentsourceswithdifferentdegrees.ThiskindofDarbouxtransformationenablesustoconstructtheN-solitonsolutionforthemKdVhierarchywithself-consistentsources.Wealsoproposetheformulasforthemtimesrepeatedintegral-typeDarbouxtransformationsforbothmKdVhierarchyandmKdVhierarchywithself-consistentsources.

  • 标签: 孤子方程 积分型Darboux变换 自洽源 非线性偏微分方程
  • 简介:Bilayermembranesself-assembledfromamphiphilicmoleculessuchaslipids,surfactants,andblockcopolymersareubiquitousinbiologicalandphysiochemicalsystems.Theshapeandstructureofbilayermembranesdependcruciallyontheirmechanicalpropertiessuchassurfacetension,bendingmoduli,andlinetension.Understandinghowthemolecularpropertiesoftheamphiphilesdeterminethestructureandmechanicsoftheself-assembledbilayersrequiresamolecularlydetailedtheoreticalframework.Theself-consistentfieldtheoryprovidessuchatheoreticalframework,whichiscapableofaccuratelypredictingthemechanicalparametersofself-assembledbilayermembranes.Inthisminireviewwesummarizetheformulationoftheself-consistentfieldtheory,asexemplifiedbyamodelsystemcomposedofflexibleamphiphilicchainsdissolvedinhydrophilicpolymericsolvents,anditsapplicationtothestudyofself-assembledbilayermembranes.

  • 标签: 自洽场理论 自组装膜 应用程序 弯曲弹性模量 双亲分子 亲水性聚合物
  • 简介:TheenergybanddiagramandchargedistributionoftheunintentionaldopedAIGaN/GaN/AIGaN/GaNdoubleheterostructurewereobtainedbyself-consistentPoissonSchroedingercalculations.Theseverebandtiltingandhightwo-dimensionalelectrongas(2DEG)densitymainlyattributetothelargeinternalpolarizationintensity,whichisc/osetoalinearfunctionorAlcomposition.TheinfluenceorAlcompositionisinvestigated.Theresultsshowthatbandtiltingenlargesand2DEGgainswithAIcomposition,andtwo-dimensionalholegasoccurswhenAIcompositionreachesacertainextent.TheinfluenceorAlcompositionandtwo-dimensionalholegas(2DHG)ondevicesisdiscussed.

  • 标签: 能带图 电荷分布 双重异结构 自相容泊松-施荣丁格尔计算 氮化镓