简介：三新diarylheptanoids，即，钠(5S,2E)-1,7-bis(4-hydroxyphenyl)-1-hydroxy-2-hepten-5-sulfonate(1)，钠(5R,2E)-1,7-bis(4-hydroxyphenyl)-1-hydroxy-2-hepten-5-sulfonate(2)和3,5-diacetoxy-1-(3-methoxy-4,5-dihydroxyphenyl)-7-(4-hydroxy-3-methoxyphenyl)heptane(3)从姜officinale的根茎被孤立。新混合物的结构根据分光镜的方法被阐明。3的抗氧化剂活动在包含DPPH自由激进分子和超级氧化物阴离子激进分子的vitro模型旁边是assayed。

简介：在这篇论文，有t(2≤t≤n)的图G的一个相等的条件不同拉普拉斯算符特征值被建立。由把这个条件用于t=3如果G是常规的(必然强烈常规)，Gbeing的一个相等的条件拉普拉斯算符积分被给。另外为t=的案例3如果G是非常规的，G有直径2，这被发现；尺寸至多5如果G不是一棵树。图G在它的是没有三角的情况中被描绘，由两部组成；没有五边形。在两个盒子中，G是拉普拉斯算符积分。

简介：InthispaperwegivesixexplicitformulaetocomputetheKirchhoffindex,themultiplicativedegree-Kirchhoffindexandtheadditivedegree-Kirchhoffindexofthek-cactuschainandthecactusgraphwhichcanbeobtainedfromak-cactuschainbyexpandingeachofthecut-verticestoacutedge.

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简介：为空间地同类的Boltzmann方程的起始的价值问题被考虑。为这个问题的一个确定的数字计划被三个方法的使用开发未知功能以及碰撞积分的分解。在上这样，算法的几乎线性复杂性被完成。一些数字例子被举。[从作者抽象]

简介：WestudythedynamiccavitymethodfordilutekineticIsingmodelswithsynchronousupdaterules.FortheparallelupdaterulewefindforfullyasymmetricmodelsthatthedynamiccavityequationsreducetoaMarkoviandynamicsofthe(time-dependent)marginalprobabilities.Fortherandomsequentialupdaterule,alsoaninstantiationofasynchronousupdaterule,wefindontheotherhandthatthedynamiccavityequationsdonotreducetoaMarkoviandynamics,unlessanadditionalassumptionoftimefactorizationisintroduced.ForsymmetricmodelsweshowthatafixedpointofordinaryBeliefpropagationisalsoafixedpointofthedynamiccavityequationsinthetimefactorizedapproximation.Forclarity,theconclusionsofthepaperareformulatedasthreelemmas.

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简介：在这份报纸，我们建议三削尖接近的分计划，与三个形状参数，那统一三不同存在三个点接近计划。为到C3连续性和为由使用劳伦多项式方法为参数的某些范围产生张肌产品表面的计划的集中的分曲线C0的一些足够的条件被讨论。曲线和表面设计的系统特别为衣服建模在服装CAD成功地基于我们的计划被开发了。

简介：Inthispaper,anovelmethodforThreedimensionalactivesoundfieldcancellationisproposed.Theoptimumsoundcancellationsindifferentsituationsmaybeobtained.Anarraywhoseelementslieonasetofringsplacedonthesurfaceofascatteringobjectisconsideredasthedevice.Itisquitepossibletocancelthescatteredsoundfieldtoanyarbitrarylevelovereitherthewholespaceorapartialareaofinterest,aslongasthenumberofthearrayelementsissufficient.

简介：Inthispaper,weconsiderthesimultaneousrepresentationofpairsofintegersaslinearcombinationsinthreeprimevariablesandobtainarelatednumericalbound.

简介：InthispaperweproposeapossibleexplanationtotheFermionmasshierarchyproblembyfittingthetype-IIseesawmechanismintotheHiggsdoubletsector,suchthattheirvacuumexpectationvaluesarehierarchal.WeextendtheStandardModelwithtwoextraHiggsdoubletsaswellasaspontaneouslybrokenUX(1)gaugesymmetry.AllthefermionYukawacouplingsexceptthatofthetopquarkareofO(10~(-2))inourmodel.Constraintsontheparameterspaceofthemodelfromlowenergyprocessesarestudied.Besides,thelightestoneoftheneutralfermionfields,whichisintroducedtocanceltheanomaliesoftheU(1)Xgaugesymmetrycanbethecolddarkmattercandidate.Weinvestigateitssignatureinthedarkmatterdirectdetection.

简介：作者学习第二份订单的接口问题的答案的结构在三种空格尺寸的线性椭圆形的部分微分方程。单个点的集合由一些单个线组成；一些孤立的单个点。在一根单个线或一个单个点附近，每个弱答案能被分解成二部分，这被证明，单个部分；常规部分。单个部分是一些更简单的方程的特别答案的某有限的和，；常规部分在一些标准被围住，它在Sobolev空间H是比那稍微弱的[2]。

简介：Thisreportdescribesanewmethod,theself-searchingmethod,tofindeigenraysinanoceanwherethereisathree-dimensionalsoundspeedperturbationblobonauniformsoundspeedbackground.Comparedwiththetraditionalshootingmethod,thismethodcanreducethenumberofraycalcula-tionsbyabouttwoordersofmagnitude,andaneigenraycanbefoundbycom-puterprogramwithoutmanualintervention.

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简介：Westudythestructureofinvertiblesubstitutionsonthree-letteralphabet.Weshowthatthereexistsafi-nitesetSofinvertiblesubstitutionssuchthatanyinvertiblesubstitutioncanbewrittenasIwoσ1oσ2…σk,whereIwistheinnerautomorphismassociatedwithw,andσj∈Sforl≤j≤k.Asaconsequence,Misthematrixofaninvertiblesubstitutionifandonlyifitisafiniteproductofnon-negativeelementarymatrices.

简介：<正>Inthispaper,westudythebifurcationproblemsofroughheteroclinicloupscormectingthrecsaddlepointsforahigher-dimensionalsystem.Undersometransversalconditionsandthenontwistedcondition.theexistence.uniqueness.ndincoexistenccofthcl-heteroclinicloopwiththrecortwosaddlepomts.l-homoclinicorbitandl-periodicorbitnearTareobtained.Nleanwhile,thebifurcationsurfacesandexistenceregionsarealsogiven.Moreover.theabovebifurcationresultsareextendedtothecaseforheteroclinicloopwithlsaddlepoints.

简介：在这份报纸，我们与不可压缩的条件为3DMHD方程的答案考虑整齐标准。由使用一些古典不平等，我们分别地以速度地和磁场的一个部件在某些足够的条件下面获得三维的MHD方程的强壮的答案的整齐。

简介：MostalgorithmsoftheimmersedboundarymethodoriginatedbyPeskinareexplicitwhenitcomestothecomputationoftheelasticforcesexertedbytheimmersedboundarytothefluid.Adrawbackofsuchanexplicitapproachisasevererestrictiononthetimestepsizeformaintainingnumericalstability.AnimplicitimmersedboundarymethodintwodimensionsusingthelatticeBoltzmannapproachhasbeenproposed.Thispaperreportsanextensionofthemethodtothreedimensionsanditsapplicationtosimul...

简介：Considerathree-dimensionalsystemhavinganinvariantsurface.Byusingbifurcationtechniquesandanalyzingthesolutionsofbifurcationequations,theauthorsstudythespacialbifurcationphenomenaofakmultipleclosedorbitintheinvariantsurface.Thesufficientconditionsoftheexistenceofmanyclosedorbitsbifurcatefromthekmultipleclosedorbitareobtained.

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