简介：在这个工作，我们在一种尺寸为p鈥揕a地方操作员学习光谱的数功能。我们显示出二条鈥搕ermWeyl鈥搕ype渐近线的存在。证明的方法是相当基本的，基于Dirichlet格子点问题，它使我们能为无限的措施的领域获得类似的结果。关键词p鈥揕aplacian-特征值-格子点先生(2000)题目分类35P20-35P30部分由FundacionAntorchas和ANPCyT皮克特人号码03-05009支持了

简介：Conceptlatticeisapowerfultoolfordataanalysis.Ithasbeenappliedwidelytomachinelearning,knowledgediscoveryandsoftwareengineeringandsoon.Someaspectsofconceptlatticehavebeenstudiedwidelysuchasbuildinglatticeandrulesextraction,asforitsalgebraicproperties,therehasnotbeendiscussedsystematically.Thepapersuggestsabinaryoperationbetweentheelementsforthesetofallconceptsinformalcontext.Thisturnstheconceptlatticeingeneralsignificanceintothosewithoperators.Wealsoprovedthattheconceptlatticeisalatticeinalgebraicsignificanceandstudieditsalgebraicproperties.Theseresultsprovidedtheoreticalfoundationandanewmethodforfurtherstudyofconceptlattice.

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简介：这个工作介绍调查结果的评论进包装算法的一个数字地基于的粒子的能力，叫的DigiPac，在许多包装的列预言床结构，为通用小团的一个范围，形状经常在设计工业的化学药品和过程使用了。产生宏观的性质与从侵略、非破坏性的测量技术导出的试验性的数据相比。另外，通过产生的床结构的样品，液体速度分布用格子Boltzmann被分析方法(LBM)模拟并且从文学对试验性的数据被比较。

简介：Anindependentmethodforpaper[10]ispresented.WeightedlatticepathsareemumeratedbycountingfunctionwhichisanaturalextensionofGaussianmultinomialcoefficientinthecaseofunrestrictedpaths.Convolutionsforpathcountsareinvestigated.whichyieldssomeVandermonde-typeidentitiesformultinomialandq-multinomialcoefficients.

简介：LargescaleQCDMonteCarlocalculationshavetypicallybeenperformedoneithercommercialsupercomputersorspeciallybuiltmassivelyparallelcomputerssuchasFermilab'sACPMAPS.Commodityclustersequippedwithhighperformancenetworkingequipmentpresentanattractivealternative,achievingsuperiorperformancetopriceratiosandofferingclearupgradepaths.WedescribetheconstructionandresultstodateofFermilab'sprototypeproductioncluster,whichconsistsof80dualPentiumⅢsystemsinterconnectedwithMyrinetnetworkinghardware.Wedescribesoftwaretoolsandtechniqueswehavedevelopedforoperatingsysteminstallationandadministration.WediscusssoftwareoptimizationsusingthePentium'sbuilt-inparallelcomputationfacilities(SSE),Finally,wepresentshortandlongtermplansfortheconstructionoflargerfacilities.

简介：AlatticeBoltzmannnumericalmodelingmethodwasdevelopedtopredictskinconcentrationaftertopicalapplicationofadrugontheskin.ThemethodisbasedonD2Q9latticespacesassociatedwiththeBhatnagar-Gross-Krook(BGK)collisiontermtosolvetheconvection-diffusionequation(CDE).Asimulationwascarriedoutindifferentrangesofthevalueofbound,whichisrelatedtoskincapillaryclearanceandthevolumeofdiffusionduringapercutaneousabsorptionprocess.Whenatypicaldrugisusedontheskin,thevalueofcorrespondstotheamountofdrugabsorbedbythebloodandtheabsorptionofthedrugaddedtotheskin.Theeffectofwasstudiedforwhentheregionofskincontactisalinesegmentontheskinsurface.

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简介：AnewlatticeBoltzmannmodelforcompressibleperfectgasispro-posed.Thenumericalexampleshowsthatitcanbeusedtosimulateshockwaveandcontactdiscontinuity.Theresultsarecomparablewiththoseobtainedbytraditionalmethods.Theratioofspecificheatsγmaybechosenaccordingtotherequirementofproblems.

简介：WeaddresstheimpactofnonlocalityinthephysicalfeaturesexhibitedbysolitonssupportedbyKerr-typenonlinearmediawithanimprintedopticallattice.WediscussthesolitonssolutionforaclassofnonlinearSchr¨odingerequationsintheopticallatticewithnonlocalnonlinearity.Wealsoshowviaauniformprioriestimatethatexistenceanduniquenessoftheglobalsolutionfortheinitialproblem.

简介：在简短在格子QCD考察理论概念和数字方法以后，有将近物理的夸克群众的强子群众和强子相互作用的最近的模拟结果被介绍。特殊强调根据为相等时间的Nambu-Bethe-Salpeter振幅的integro微分的方程起一个关键作用衔接在multi-baryon关联并且散布之间的差距的HALQCD方法被放在baryon-baryon相互作用上例如阶段移动看得见。

简介：TheproblemofthemixedconvectioninacubiccavityisstudiedwithlatticeBoltzmannmethod.Amultiple-relaxation-timelatticeBoltzmannmodelforincompressibleflowinthecubiccavityandanotherthermallatticeBoltzmannmodelforsolvingenergy/temperatureequationareproposed.Thepresentmodelsarefirstvalidatedthroughacomparisonwithsomeavailableresults,andthen,wepresentadetailedparameterstudyonthemixedconvectioninthecubiccavity.ThenumericalresultsshowthattheHowandtemperaturepatternschangegreatlywithvariationsoftheReynoldsandRichardsonnumbers

简介：《科技术语研究》创刊号３７—３８页卢慧筠“几个物理学名词的定名问题”一文说：“ｃｒｙｓｔａｌｌａｔｉｃｅ中既有由原子排列成的点阵，又有由化学键组成的格子”。要将“ｌａｔｉｃｅ”定名为“晶格”而废弃“点阵”。本人不敢苟同。首先，卢文以为的ｌａｔｉｃｅ...

简介：Inthisstudy,amulti-relaxationtimelatticeBoltzmannmodelforshallowwaterinacurvilinearcoordinategridisdevelopedusingthegeneralizedformoftheinterpolationsupplementedlatticeBoltzmannmethod.TheTaylor-Coletteflowtestsshowthattheproposedmodelenjoysasecondorderaccuracyinspace.Theproposedmodelisappliedtothreetypesofmeanderingchannelswith180°,90°and60°consecutivebends.Thenumericalresultsdemonstratethatthesimulatedresultsagreewellwithpreviouscomputationalandexperimentaldata.Inaddition,themodelcanachievetheacceptableaccuracyintermsofthewaterdepthandthedepth-averagedvelocitiesforshallowwaterflowsincurvedandmeanderingchannelsoverawiderangeofbendangles.

简介：作者给bigradedToda层次(BTH)的有限维的指数的答案。作为BTH的指数的答案的一个特定的例子，作者考虑一个常规答案为(1，2)有3?的-BTH??戠杩慲敤?吠摯??????畩慲吗？？

简介：Usingatriangularlatticemodeltostudythedesignabilityofproteinfolding,weovercametheparityproblemofpreviouscubiclatticemodelandenumeratedallthesequencesandcompactstructuresonasimpletwo-dimensionaltriangularlatticemodelofsize4+5+6+5+4.Weusedtwotypesofaminoacids,hydrophobicandpolar,tomakeupthesequences,andachieved223+212differentsequencesexcludingthereversesymmetrysequences.Thetotalstringnumberofdistinctcompactstructureswas219,093,excludingreflectionsymmetryintheself-avoidingpathoflength24triangularlatticemodel.Basedonthismodel,weappliedafastsearchalgorithmbyconstructingaclustertree.Thealgorithmdecreasedthecomputationbycomputingtheobjectiveenergyofnon-leafnodes.Theparallelexperimentsprovedthatthefasttreesearchalgorithmyieldedanexponentialspeed-upinthemodelofsize4+5+6+5+4.Designabilityanalysiswasperformedtounderstandthesearchresult.

简介：蛋白质合拢是在生物信息学，许多试探算法为被建议了的一个相关计算问题。这个工作为微分进化(DE)的申请介绍方法论给蛋白质合拢的问题，用双性人维的恐水病极的模型。DE是一个相对最近的进化算法，；在几个工程优化问题成功地被使用了，通常与连续变理。我们介绍在DE印射以便提供一在真实值的向量之间印射的遗传型显型的概念；实际合拢。方法论被详细说明；有基准的几个实验被做。我们把结果与另外的类似的实现作比较。建议DE出现了竞争，统计上一致；很有希望。

简介：ＡＣＥＮＴＲＡＬＬＩＭＩＴＴＨＥＯＲＥＭＦＯＲＬＡＴＴＩＣＥＧＡＵＧＥＧＩＢＢＳＲＡＮＤＯＭＦＩＥＬＤＳＣＨＥＮＤＯＮＧＱＩＮＧ（陈冬青）（ＤｅｐａｒｔｍｅｎｔｏｆＡｐｐｌｉｅｄＭａｔｈｅｍａｔｉｃｓ，ＴｓｉｎｇｈｕａＵｎｉｖｅｒｓｉｔｙ，Ｂｅｉｊｉ...

简介：AKondomodelinasquaretight-bondinglatticeofconductionelectronsisconsidered.TheKondointeractiontakesad-wave.Usingmean-fieldtheoryandnumericalsimulations,itisfoundthatthereisapseudo-gapfortheimpuritydensityofstatesattheFermilevel.Numericalresultsalsoshowthattheexponentsofthelowtemperaturethermodynamicquantitiesarenon-universalbutdependentontheinteraction.

简介：Wereportourlatticesimulationonthecharmoniumspectrainthequenchedapproximation.Becausethecompleteadjustmentonallthenonperturbativeparametersneedsmuchcalculationtime,weonlyadjusttwoofthem,butwithsomerescalingformasssplitting.Aftertherescaling,thecalculatedmassesofmesonare3.030GeV(ηc),3.080GeV(J/ψ),3.546GeV(he)and3.412GeV(Xco)respectively,whichisinagreementwiththeexperimentalresults.