简介:The’polarcoding’proposedbyDr.Arkancanachievethesymmetriccapacityofbinary-inputdiscretememorylesschannels(B-DMC).ThegeneratormatrixofpolarcodesisGN=BNFnforN=2n,BNwasapermutationmatrix.Inthearticleitwasrealizedwithaninterleaver,sothematrixproductionofGNwasavoided;thenthegeneratormatrixwasjustdeterminedbythematrixFnwhichwasconstructedwiththreesub-matrixesofFn-1andone2N-1orderzeromatrix,itwasdealwithfastHadamardtransform(FHT)algorithm.Thecomplexityofthenewschemewasreducedsharply,andaniterativealgorithmalsocanbeused.TheexampleshowedthatwhenN=8,complexityoftheencodingschemewasjust16whichisobviouslylessthanthatoforiginalencodingscheme36.
简介:如果p(z)是都在|z上有它的零的度n的一个多项式|=k,k1,然后,它被证明[5]那$\mathop{\max}\limits_{\left|z\right|=1}\left|{p'(z)}\right|\leqslant\frac{n}{{k^{n-1}+k^n}}\mathop{\max}\limits_{\left|z\right|=1}\left|{p(z)}\right|.$\mathop{\max}\limits_{\left|z\right|=1}\left|{p'(z)}\right|\leqslant\frac{n}{{k^{n-1}+k^n}}\mathop{\max}\limits_{\left|z\right|=1}\left|{p(z)}\right|。
简介:PoInTree(PolarandInnteractiveTree)isanapplicationthatallowstobuild,visualize,andcustomizephylogenetictreesinapolar,interactive,andhighlyflexibleview.IttakesasinputaFASTAfileormultiplealignmentformats.PhylogenetictreecalculationisbasedonasequencedistancemethodandutilizestheNeighborJoining(NJ)algorithm.ItalsoallowsdisplayingprecalculatedtreesofthemajorproteinfamiliesbasedonPfamclassification.InPoInTree,nodescanbedynamicallyopenedandclosedanddistancesbetweengenesaregraphicallyrepresented.Treerootcanbecenteredonaselectedleaf.Textsearchmechanism,color-codingandlabelingdisplayareintegrated.ThevisualizercanbeconnectedtoanOracledatabasecontaininginformationonsequencesandotherbiologicaldata,helpingtoguidetheirinterpretationwithinagivenproteinfamilyacrossmultiplespecies.TheapplicationiswritteninBorlandDelphiandbasedonVCLTeechartPro6graphicalcomponent(Steemasoftware).
简介:LetP(z)beapolynomialofdegreenandforanycomplexnumberα,letDαP(z)=nP(z)+(α-z)P′(z)denotethepolarderivativeofP(z)withrespecttoα.Inthispaper,weobtaincertaininequalitiesforthepolarderivativeofapolynomialwithrestrictedzeros.Ourresultsgeneralizeandsharpensomewell-knownpolynomialinequalities.
简介:在极的同温层的云(PSC)的液体和稳固的粒子被知道了在迟了的冬季和早春在南极和北极区域上在同温层的臭氧的化学损失起一个关键作用。同温层的喷雾器和云粒子提供快异构的化学反应把不活跃的卤素水库种类变换成消灭激进分子的潜在的臭氧的地点。氮的酸包含的PSCparticles的沉积不可逆转地把HNO_3气体(denitrification)从更低的平流层移开,它减缓氯的回来到它的不活跃的形式,导致更多的严重同温层的臭氧破坏。尽管这些云在在situ领域观察,实验室实验和当模特儿的研究使用的过去的十年期间广泛地被调查了,在冷同温层的条件下面的详细微视物理学过程仍然是不明确的。这篇论文在我们PSC的理解考察最近的进展。
简介:LetW~{W(t);t∈RN+}bethed-dimensionalN-parameterBrownianSheet.SufficientconditionsforacompactsetFRd\{0}tobeapolarsetforWareproved.Itisalsoprovedthatif2N≤d,thenforanycompactsetER>N,inf{dimF:F∈B(Rd),P{W(E)∩F≠φ}>0}=d-2DimE,andif2N>d,thenforanycompactsetFRd\{0},inf{dimE:E∈B(R>N),P{W(E)∩F≠φ}>0}=d/2DimF/222,whereB(Rd)andB(RN>)denotetheBorelσ-algebrainRdandR>Nrespectively,anddimandDimareHausdorffdimensionandPackingdimensionrespectively.
简介:ThisarticledescribesthefabricationofasuiteoflasertargetsbytheTargetFabricationgroupintheCentralLaserFacility(CLF),STFCRutherfordAppletonLaboratoryforthefirstacademic-accessexperimentontheOrionlaserfacility(Hoppsetal.,Appl.Opt.52,3597–3601(2013))atAtomicWeaponsEstablishment(AWE).Thisexperiment,partofthePOLARproject(Falizeetal.,Astrophys.SpaceSci.336,81–85(2011);Busschaertetal.,NewJ.Phys.15,035020(2013)),studiedconditionsrelevanttotheradiation-hydrodynamicprocessesoccurringinaremarkableclassofastrophysicalstarsystemsknownasmagneticcataclysmicvariables.Alargenumberofcomplexfabricationtechnologiesandresearchanddevelopmentactivitieswererequiredtofieldatotalof80high-specificationtargets.Targetdesignandfabricationproceduresaredescribedandinitialalignmentandcharacterizationdataarediscussed.
简介:现在的学习试图扩大旋转对称的地球的传统的旋转理论到triaxial地球。我们再用形式表示为triaxial的Liouville方程和他们的一般解决方案非刚性的土并且发现传统的理论在为刺激函数建模介绍一些理论错误。而且,我们把那个理论用于大气的刺激并且发现理论错误不应该被忽视给现在的测量精确性。因此,我们断定旋转对称的地球的旋转的传统的理论应该被修订并且升级了包括地球triaxiality的效果。