简介:让(*(M),d)为一个光滑的协议的deRhamcochain建筑群被关上尺寸n的manifoldsM。为奇怪度的关上的形式H,有扭曲的deRhamcochain建筑群(*(M),d+H<潜水艇class=“a-plus-plus”>)和它的联系扭曲的deRhamcohomologyH*(M,H)。作者证明那在那里存在一光谱顺序{Erp,q,dr}源于过滤\(F_p(*M,收敛到扭曲的deRhamcohomologyH,mega^*(M))=\mathop\oplus\limits_{i\geqslantp}\Omega^i(M)\)M,H)。这也被显示出differentials在光谱顺序能也以杯产品和Massey产品的特定的元素被给,它概括Atiyah和Segal的结果。关于differentials的不确定的一些结果也在这份报纸被给。
简介:In1971,thefamousmathematicianGeorgePolya,introducedfourbasicstepsorphasesforsolvingproblems:Step1UnderstandtheProblemStep2DecideonaPlanStep3CarryoutthePlanStep4LookBack
简介:Anoverviewispresentedonthestatusofstudiesonmultiplecodesingeneticsequences.Indirectly,theexistenceofmultiplecodesisrecognizedintheformofseveralrediscoveriesofSecondGeneticCodethatisdifferenteachtime.Aduecreditisgiventoearlierseminalworkrelatedtothecodesoftenneglectedinliterature.Thelatestdevelopmentsinthefieldofchromatincodearediscussed,aswellasperspectivesofsingle-baseresolutionstudiesofnucleosomepositioning,includingrotationalsettingofDNAonthesurfaceofthehistoneoctamers.
简介:LetXbeaBanachspaceand{ej}j=1beasequenceinX.Theauthorshowse∞that{ej}∞j+1isabasicsequenceifandonlyif∑n∞=1rnαnjconvergesforeveryj>1ande∞-∞∞e∑∞n=1rn∑∞j=1αnjej=∑j=1(∑∞n=1rnαnj)jholdsforeverychoiceofscalarvariables{αnj}suchthat∑∞n=1αnjejconvergesforeachn>-1andanychoiceofscalarvariables{rn}suchthat∑∞n+1∑∞f=1rnαnjejconverges.Moreover,someapplicationsabouttheresultaregiven.
简介:Inthispaper,theperfectdyadicbinarysequencepairwithone-valuedyadiccorrelationfunctionsispresented.Thatis,theperfectdyadicbinarysequencepairisaperfectdiscretesignal,foritsdyadicrelativefunctionisδ-function.Thetransformationfeaturesandsomeexistingadmissibilityconditionsofperfectdyadicbinarysequencepairarediscussed,andthepropertiesforthiskindofcodeinWalshtransformationspectrumandweightspectrumarealsoanalyzed.Fromabove,Itisfoundthattheperfectdyadicbinarysequencepaircaneasilydifferentiatefromitsdyadicshifting.Sothesegoodsignalscanusedinengineeringassynchronizationcode,multi-usercodeandsoon.
简介:为不连续的函数的subadditive顺序的拓扑的压力在在紧缩的公制的空格有子集的一个嵌套的家庭的任何不变的子集上被定义。变化原则与二个不同相对弱的条件联系了的二subadditive为定义拓扑的压力被开发。作为一个应用程序,我们与非零Lyapunov代表在系统上给一个例子。关键词热力学的形式主义-变化原则-拓扑的压力-功能AMS(2010)题目分类37D35的subadditive顺序-37A30由中国(10971100)的国家自然科学基础支持了。第一个作者被资助为中央大学从江苏省(0701049C)和基本研究资金的博士后的科学研究节目支持。第二个作者被中国(973程序)(2007CB814800)的国家基本研究节目部分支持。
简介:我们在原生生物Trichomonasvaginalis的最近的调查与120.9nt的单位长度建议了DNA顺序频率,它为放的nucleosome代表顺序签名。我们现在在更高的优核质扩大了我们的观察并且在Caenorhabditiselegans在长度识别了175nt的类似的频率。在定义顺序的过程组合特征,我们发现10.5-nt频率,DNA双螺旋的顺序签名,不能为放的cross-nucleosome足够,但是提供指导栏杆便于的必需品放。我们推进把的保护nucleosome的序列并且从第5'-e识别了一个强壮的积极嘌呤(AG)坡度到第3'-e,并且当嘌呤内容断然与GC内容被相关,也听说充实nucleosome的区域作为与nucleosome免费的序列相比GC富有。顺序描述允许我们开发一个隐藏的Markov模型(唔)为译码nucleosome放的算法计算地,并且基于从C的第五个染色体的一套训练数据。elegans,我们的算法比随机的放预言了放得好的nucleosomes的60%-70%,它高是15%-20%。我们断定nucleosomes随机没在DNA序列上被放并且还与可变稳定性,DNA上的放得好的nucleosomes叶子顺序签名,并且到对面的nucleosomes的统计的放绑在不同染色体区域染色体能基于这些顺序签名计算地被译码。
简介:ThecriteriaofURandWURpointsaregivenfortheOrliczsequencespaces.
简介:IncrementalalgorithmisoneofthemostpopularproceduresforconstructingDelaunaytriangulations(DTs).However,thepointinsertionsequencehasagreatimpactontheamountofworkneededfortheconstructionofDTs.Itaffectsthetimeforbothpointlocationandstructureupdate,andhencetheoverallcomputationaltimeofthetriangulationalgorithm.Inthispaper,asimpledeterministicinsertionsequenceisproposedbasedonthebreadth-first-searchonaKd-treewithsomeminormodificationsforbetterper-formance.Usingparentnodesassearch-hints,theproposedinsertionsequenceprovestobefasterandmorestablethantheHilbertcurveorderandbiasedrandomizedinsertionorder(BRIO),especiallyfornon-uniformpointdistributionsoverawiderangeofbenchmarkexamples.
简介:Inthispaper,weconsidertwocompetitiveparalleldistributionchannels(PDCs)eachofthemconsistingofamanufacturerandaretailer.IneveryPDC,themanufacturersellsdifferentiatedproductstotheretailerandtheretailerchoosestheretailprice(margin).Weexploretheeffectsofthemovesequenceonthesystemperformancenotonlyineachdistributionchannel,butalsointheinter-paralleldistributionchannelssubjecttothedeterministicdemand.Undersomeassumptions,weshowthatthePDChasthesecond-moveradvantageinthisscenario.Thesystemperformancewillbeimprovedinourmodelwhentheparameterssatisfycertainconditions.Furthermore,wediscusstheresultsandfindsomeimplications.
简介:AdoublehelixmodelofchargetransportinDNAmoleculeisgivenandthetransmissionspectraoffourDNAsequencesareobtained.ThecalculatedresultsshowthatthetransmissioncharacteristicsofDNAarenotonlyrelatedtothelongitudinaltransportbutalsotothetransversetransportofmolecule.Theperiodicsequencewiththesamecompositionhasstrongerconductionability.Withtheincreasingofbasescomposition,theconductiveabilityreduces,buttheweightofθdirectionrisesinchargetransfer.
简介:Traditionalsequenceanalysisdependsonsequencealignment.Inthisstudy,weanalyzedvariousfunctionalregionsofthehumangenomebasedonsequencefeatures,includingwordfrequency,dinucleotiderelativeabundance,andbase-basecorrelation.Weanalyzedthehumanchromosome22andclassifiedtheupstream,exon,intron,downstream,andintergenicregionsbyprincipalcomponentanalysisanddiscriminantanalysisofthesefeatures.Theresultsshowthatwecouldclassifythefunctionalregionsofgenomebasedonsequencefeatureanddiscriminantanalysis.
简介:ObjectiveDebrisflowsarecohesivesedimentgravityflowswhichoccurinbothsubaerialandsubaqueoussettings.Comparedtosubaerialdebrisflowswhichhavebeenwellstudiedasageologicalhazard,subaqueousdebrisflowsshowingcomplicatedsedimentcompositionandsedimentaryprocesseswerepoorlyunderstood.Themainobjectiveof
简介:1,209earthquakesoccurredinXianyou,FujianfromAugust4,2010toOctober4,2013.ThelargestearthquakewasML5.0onSeptember4,2013.InordertostudytheXianyouearthquakesequenceandunderstandthecausativestructureandstressfieldofXianyou,thefocalmechanismsolutionsofsixearthquakes(ML>3.5)intheXianyouearthquakesequencearecalculatedusingthebroadbanddigitaldataoftheFujianSeismicNetworkwiththeseismicmomenttensorinversemethod.Theresultsshowthatthefocalfaultsofthesixearthquakesaresimilar,whichareallstrike-slipfaultsstrikingtothenorthwestwithhighdipangles.ThedirectionoftheprincipalcompressivestressaxesisnearSN,whichisdifferentfromthestressfieldofFujianregion.TheXianyouearthquakesequencemayhavebeeninducedbythestressadjustmentaftertheimpoundmentofJinzhongreservoir.