学科分类
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500 个结果
  • 简介:Inthispaper,itisobtainedthataperiodicsystemhasanalmostperiodicsolutionifithasasolutionx=(t)uniformlystablewithrespecttoΩ_,andhasaperiodicsolutionifx=(t)isweaklyuniformlyasymptoticallystablewithrespecttoΩ_.Meanwhile,itisalsoobtainedthatauniformlyalmostperiodicsystemhasanalmostperiodicsolutionifithasasolutionx=(t)uniformlyasymptoticallystablewithrespecttoA_~f

  • 标签: ASYMPTOTICALLY uniformly weakly SUPPOSE assume LEMMA
  • 简介:Thispaperdevelopsamethodwhichenablesustostudythenumber,existenceandstabilityofperiodicsolutionsandalmostperiodicsolutionsofthescalarordinarydifferentialequation.Someapplicationsofthemethodarealsogiven.

  • 标签: SCALAR erior proof BOUNDEDNESS MAXIMAL 二忍
  • 简介:作者与非线性的边界状况学习p(x)拉普拉斯算符方程。由使用变化方法,在不安上的适当假设下面称为f1(x,u),f2(x,u)并且h1(x),h2(x),以便联系功能分别地满足“山通行证词根”和“喷泉定理”,答案的存在和复合被获得。讨论基于可变代表Lebesgue和Sobolev空格的理论。

  • 标签: 非线性边界条件 拉普拉斯方程 多解 Sobolev空间 喷泉定理 山路引理
  • 简介:AstatisticalthermodynamictheoryoflinearproteinsolutionswasproposedwiththeaidofalatticemodelandappliedtotypeⅠantifreezeprotein(AFPI)solutions.ThenumericalresultsforseveralAFPIsolutionsshowthattheGibbsfunctionofthesolutionhasaminimumatacertainproteinconcentration,buttheproteinchemicalpotentialincreaseswithincreasingtheconcentration.TheinfluencesoftemperatureandproteinchainlengthontheAFPIchemicalpotentialwerealsodiscussed.Theevaluationforthecolligativedepressionofthefreezingpointconfirmsthattheantifreezeactionshouldberecognizedasnon-colligative.Thetheoreticaldeductionfortheconcentrationdependenceofthethermalhysteresisactivitycoincidesqualitativelywiththepreviousexperimentalandtheoreticalresults.

  • 标签: 蛋白质溶液 应用程序 抗冻蛋白 热力学性质 线性 蛋白质浓度
  • 简介:Inthispaper,thetheoryofmajorefficiencyformultiobjectiveprogrammingisestablished.Themajor-efficientsolutionsandweaklymajor-efficientsolutionsofmultiobjectiveprogramminggivenhereareParetoefficientsolutionsofthesamemultiobjectiveprogrammingproblem,buttheconverseisnottrue.Inaceratinsense,thesesolutionsareinfactbetterthananyotherParetoefficientsolutions.Somebasictheoremswhichcharacterizemajor-efficientsolutionsandweaklymajor-efficientselutionsofmultlobjectiveprogrammingarestatedandproved.Furthermore,theexistenceandsomegeometricpropertiesofthesesolutionsarestudied.

  • 标签: 多目标规划 弱较多有效解 较多有效解 多目标程序设计
  • 简介:2006年10月18日,上海世伟洛克公司今日宣布已与JetalonSolutions公司签署了独家合作协议,商业推广CR-288浓度监测技术。

  • 标签: 监测技术 合作协议 ns公司 浓度
  • 简介:系统科学和控制论在二次世界大战以后出现在年里。这些地创造了许多新途径到工程和管理并且贡献了新想法到存在的学术地。新地也越过地的一个范围识别了类似的概念并且开始创造了系统的一个一般理论。另外,系统科学为管理复杂系统创造了许多方法,例如后勤,运筹学和计算机模拟。在1970年代,关于人口和环境平衡有担心。当前与统治正在增加担心,后来,问题的表示的率似乎比我们的机构的能力很好管理他们。这篇论文将讨论系统科学的历史,控制论,提出的问题和答案求婚,困难在在当代的大学和现在在进行之中的研究的一些令人激动的线以内发现一个家遇到了。

  • 标签: 一般系统理论 控制论 系统工程 复杂性 认识论
  • 简介:Itiswellknownthatforsymmetriclinearprogrammingthereexistsastrictlycomplementarysolutioniftheprimalandthedualproblemsarebothfeasible.However,thisisnotnecessarytrueforsymmetricorgeneralsemidefiniteprogrammingevenifboththeprimalproblemanditsdualproblemarestrictlyfeasible.Someotherpropertiesarealsoconcerned.

  • 标签: semide FINITE PROGRAMMING (SDP) linear PROGRAMMING
  • 简介:Theobjectiveofthispaperistogiveaconstructiveapproachtothesolutionofthefundamentalfunctionsforcardinalinterpolationfromashift-invariantspacegeneratedbythe(multi-)integertranslatesofsomecompactlysupportedfunctionwhosepolynomialsymbolhasanon-emptyzeroset.ThisproblemwasfirstintroducedbyChut,Diamond,andRaphael,whereexplicitsolutionsweregivenforvariouszerosets.Later,deBoor,Hollig,andRiemenschneidergaveanexistenceproofforzerosetswhicharemoregeneral.Inthispa-per,wegiveanintegralrepresentationofthefundamentalsolutionsthatcanbemadeexplicitinsomecasesandwewillalsogiveagrowthconditionofsuchfundamentalsolutions.Thefour-directionalboxsplineswillbeusedasanillustrativeexample.

  • 标签: 材种 卫气 石子 切口 厂子 中肠
  • 简介:在这份报纸,作者计算同类的Grushin泛音函数的空格的尺寸,并且给他们的一个直角的基础。而且,作者描述这些同质的Grushin泛音基础的节的曲线。作为直角的基础的一个应用程序,作者为Grushin操作符证明一条Liouville类型定理,那是Grushin泛音函数如果如此的一个函数的频率等于某常数,是同类的多项式。

  • 标签: Grushin 操作员 频率功能 同类的多项式
  • 简介:WediscussseparabilityofsolutionstoaSchr?dingerequationthatdescribesacompositequantumsystemandgivesomekindsofHamiltoniansH(t)suchthatthesolutiontoSchr?dingerequationinducedbyH(t)isseparableatanytimeprovidedthatitisseparableatt=0.Forexample,weprovethatiftheHamiltonianHistime-independentandequalstotheproductPA■PBoftwoprojectionsonthesubsystemsKAandKB,respectively,thenthestate|ψ(t)ofthecompositesystemstartingfromaseparableinitial|ψ(0)=|ψA■|ψBisseparableforallt∈[0,T]ifandonlyifeither|ψAisaneigenstateofPA,or|ψBisaneigenstateofPB.

  • 标签: Schr?dinger EQUATION SEPARABILITY HAMILTONIAN
  • 简介:EnglishlinguisticimperialismisthatthedominanceofEnglishasaworldlanguageandsetsouttoanalysishowthelanguagebecamesodominant.ItlooksatthespreadofEnglish,inordertoascertainwhetherthelanguagehasactivelypromotedasaninstrumentoftheforeignpolicyofthemajorEnglish-speakingstates,andifso,inwhatways.Last,itwillprovideadescriptionoflanguagepedagogy,thescientificstudyoflanguagelearningandlanguageteaching,hasbeenisolatedfromthesocialsciencesandpoliticaldisconnection.

  • 标签: ENGLISH LINGUISTIC IMPERIALISM LANGUAGE CULTURE