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简介：Themainpurposeofthispaperistwo-fold:(i)togeneralizeanexistenceresultforacompressiblegas-liquidmodelwithafrictiontermrecentlypublishedbyFriisandEvje[SIAMJ.Appl.Math.,71(2011),pp.2014–2047];(ii)toderiveauniquenessresultforthesamemodel.Amainingredientintheexistencepartistheobservationthatwecanconsiderweakerassumptionsontheinitialliquidandgasmass,andstillobtainanexistenceresult.Comparedtotheabovementionedwork,werelyonamorerefinedapplicationoftheestimatesprovidedbythebasicenergyestimate.Concerningtheuniquenessresult,weborrowideasfromFangandZhang[NonlinearAnal.TMA,58(2004),pp.719–731]andderiveastabilityresultunderappropriateconstraintsonparametersthatdeterminerateofdecaytowardzeroattheboundaryforgasandliquidmasses,andgrowthrateofmassesassociatedwiththefrictiontermandviscouscoefficient.

简介：Tostudythepossibilityofdetectingthecrossingchannelbyusingatraditionalloggingtool,acousticfieldgeneratedbyamonopolesourceinacasedwellwithacrossingchannelofvariousanglesissimulatedby2.5-DFiniteDifferenceMethod(FDM).Snapshotsofnormalstressandsynthetictime-domainwaveformsaredisplayed.Thetwo-dimensionalspectruminwave-numberandfrequencydomainsisalsocalculated,wheretheinfluenceofthechannelisclearerthanthatinthewaveforms.Numericalstudydemonstratedthatacrossingchannelcanbedetectedandsizedifitsangleisgreaterthan30degree,andlargerspacingandlowerfrequencysourcearefavorabletodetectandsizethecrossingchannel.

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简介：我们在场对为在两倍井的ultracold波色子的物理政体的彻底的描述，与专辑，注意付钱到宏观的重叠(MS)。我们使用多达八个单个粒子模式的Lipkin-Meshkov-GlickHamiltonian的归纳学习这些MS，解决有数字准确diagonalization和高顺序的不安理论的联合的Hamiltonian。MS在左、正确的潜在的井之间；有同时位于井并且在仅仅二个模式的所有原子的极端情况是著名中午状态，但是我们的途径包含更一般的MS。更单个的粒子模式的使用把维数带进这个问题，允许我们将难限制放在通常在文学对待的原来的二模式的LMG模型的使用上，并且也介绍混合Josephson-Fock政体。更高的模式与不同尖性质介绍自由和MS状态的尖度。

简介：用intrastep量的一个电镀物品吸收调节的人(IQW)很好，活跃区域为光网络系统被制作。补偿紧张的InGaAsP/InGaAsPIQW显示出好材料质量和改进调整性质，高扑灭比率elliciency10dB/Vand低电容(<0.42pF)，与哪个极端高频率(>15GHz)能被获得。在高力量的刺激下面的高速度的测量不显示出力量浸透直到21dBm的刺激力量。到我们的知识，光力量是的输入没有热水池，最高为多量井电动会计记帐机报导了。

简介：AseriesofGaAs/AlAsmultiple-quantumwellsdopedwithBeisgrownbymolecularbeamepitaxy.Thephotoluminescencespectraaremeasuredat4,20,40,80,120,and200K,respectively.Therecombinationtransitionemissionofheavy-holeandlight-holefreeexcitonsisclearlyobservedandthetransitionenergiesaremeasuredwithdifferentquantumwellwidths.Inaddition,atheoreticalmodelofexcitonicstatesinthequantumwellsisused,inwhichthesymmetryofthecomponentoftheexcitonwavefunctionrepresentingtherelativemotionisallowedtovarybetweenthetwo-andthreedimensionallimits.Then,withintheeffectivemassandenvelopefunctionapproximation,therecombinationtransitionenergiesoftheheavy-andlight-holeexcitonsinGaAs/AlAsmultiple-quantumwellsarecalculatedeachasafunctionofquantumwellwidthbytheshootingmethodandvariationalprinciplewithtwovariationalparameters.Theresultsshowthattheexcitonsareneither2Dnor3Dlike,butareinbetweenincharacterandthatthetheoreticalcalculationisingoodagreementwiththeexperimentalresults.

简介：For2<γ

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简介：在一个应用磁场(MF)的影响下面，eigenenergies和地面和第一个激动的状态(GFES)的特徵函数被在联合不均匀的Gaussian潜在的量很好的强壮的electron-LO-phonon(AGPQW)使用Pekar类型(VMPT)的一个变化方法获得。这个AGPQW系统可以作为二水平的qubit被采用。数字结果显示了(i)当电子处于GFES的重叠状态位于时，我们在AGPQW获得时间进化和电子概率密度的并列变化，(ii)由于在AGPQW的生长方向的不均匀的潜力的存在，概率密度显示出双山峰配置，而仅仅有一个，如果监禁是在AGPQW的xy飞机的二维的对称的，达到顶点，(iii)oscilla

简介：Ithasbeensuggestedthathydrogen-richsystemsathighpressuremayexhibitnotablyhighsuper-conductingtransitiontemperatures.Oneofthemoreinterestingtheoreticalpredictionswasthathydrogensulfidecanbemetallizedandthehigh-temperaturesuperconductingstatecanbeinduced.Arecordcriticaltemperature（203K）waslaterconfirmedforH3Sinanexperiment.Inthispaper,weinvestigated,withintheframeworkoftheEliashbergformalism,thepropertiesofcompressedMgH6,whichisexpectedtobeaverygoodcandidateforroom-temperaturesuperconductivity.Thisappliesparticularlytothepressurerangefrom300to400GPa,wherethetransitiontemperatureiscloseto400K.Moreover,theestimatedthermodynamicpropertiesandtheresultingdimensionlessratiosexceedthepredictionsoftheBardeen-Cooper-Schrieffertheory.Thisbehaviorisattributedtothestrongelectron-phononcouplingandretardationeffectsexistinginhydrogen-dominatedmaterialsunderhighpressure.

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简介：我们学习与一个浸透的非线性的双井潜力在一枚旋转戒指套住的基本模式。这个模型，它基于非线性的Schr?dinger方程，能以光在一根扭曲的波导管子中被构造繁殖，或在在旋转-out-of-phase的联合下面装进一个toroidal陷井的Bose爱因斯坦冷凝物(BEC)，线性潜在、非线性的pseudopotential借助于旋转导致了光地和Feshbach回声。基本模式的三种类型在这个模型，对称的模型和其它被识别二不对称。在不同模式之间的模式和转变的形状和稳定性在第一个旋转Brillouin地区被调查。一个类似的模型使用了克尔媒介到造它的非线性的潜力，但是我们用浸透的非线性的媒介代替它。模型展出不仅对称碎，而且对称恢复。不稳定的不对称的模式的一种特定的类型也被发现，并且不稳定的不对称的模式的进化展示在二口线性井之间的Josephson摆动。由把模型看作一个BEC系统的一种配置，扎根的州的模式在这三种类型之中被识别，它在陷井附近描绘BEC原子的特定的分布。

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简介：InthispaperweconsidertheBurger-Ginzburg-Landauequations,andprovetheexistenceoftheglobalattractorinwithfiniteHausdorffandfractaldimensions.

简介：LetB(resp.K,Bl,Kl)denotethesetofallnonemptybounded(resp.compact,boundedconvex,compactconvex)closedsubsetsoftheBanachspaceX,endowedwiththeHausdorffmetric,andletGbeanonemptyrelativelyweaklycompactclosedsubsetofX.LetB°standforthesetofallF∈Bsuchthattheproblem(F,G)iswell-posed.Weprovedthat,ifXisstrictlyconvexandKadec,thesetKl∩B°isadenseG_δ-subsetofKl\G.Furthermore,ifXisauniformlyconvexBanachspace,wewillprovemore,namelythatthesetB\B°(resp.K\B°,Bl\B°,Kl\B°)isa-porousinB(resp.K,Bl,Kl).Moreover,weprovethatformost(inthesenseoftheBairecategory)closedboundedsubsetsGofX,thesetK\B°isdenseanduncountableinK.

简介：Inthispaperwell-conditioningofboundaryvalueproblemsforsystemsofsecondorderdifferenceequa-tionsisstudied.First,asufficientconditionfortheexistenceofauniqueboundedsolution(forlargeenoughnumberofsteps)ofanassociatedhomogeneoussystemisgiven.Finally,asufficientconditionforwell-condi-tioning,intrinsicallyrelatedtotheproblemdataisproposed.

简介：TheauthorsconsiderthescatteringphenomenaofthedefocusingH~s-criticalNLS.ItisshownthatifasolutionofthedefocusingNLSremainsboundedinthecriticalhomogeneousSobolevnormonitsmaximalintervalofexistence,thenthesolutionisglobalandscatters.

简介：在线上的顺序三的方程被显示出全球性好的为概括Korteweg-deVries的起始的价值问题为不平的数据摆姿势。我们的证明基于Colliander，龙骨，Staffilani，Takaoka，和道介绍的多线性的估计和我方法。

简介：Asystematicstudywasmadeonthetopologicalnatureofthesystemofnon-staticrotatingfluid.Severalinitial(boundary)valueproblemsandtheirwell-posednesswerediscussed.