简介:IthasbeentwoyearsandeightmonthssincethefirstissueofPhotonicsResearchwaspublishedinJune2013.Duringthattime,thephotonicsandopticscommunityhasprogressedonmanyfronts,ashasthejournal.Advanceshavebeenreportedinlasers,microringresonators,nanowaveguideproperties,nano-optics,ultrafastoptics,metamaterials,andnonlinearoptics,tonamebutafewthatcontinuetopushforwardtheboundariesofphotonicsandopticsresearch.In2014,
简介:Manyreal-worldsystemscanbemodeledbyweightedsmall-worldnetworkswithhighclusteringcoefficients.Recentstudiesforrigorouslyanalyzingtheweightedspectraldistribution(WSD)havefocusedonunweightednetworkswithlowclusteringcoefficients.Inthispaper,werigorouslyanalyzetheWSDinadeterministicweightedscale-freesmall-worldnetworkmodelandfindthattheWSDgrowssublinearlywithincreasingnetworkorder(i.e.,thenumberofnodes)andprovidesasensitivediscriminationforeachinputofthismodel.ThisstudydemonstratesthatthescalingfeatureoftheWSDexistsintheweightednetworkmodelwhichhashighandorder-independentclusteringcoefficientsandreasonablepower-lawexponents.
简介:UsingthedecompositiontheoryofU(1)gaugepotentialandb-mappingtopologicalcurrenttheory,weinvestigatethetopologicalinnerstructureofChernSimonstensorcurrent.ItisproventhattheU(1)Chern-Simonstensorcurrentinfour-dimensionalmanifoldisjustthetopologicalcurrentofcreatingthestringworld-sheets.
简介:Nuclearmassmeasurementsprovidevaluableinformationonthenuclearbindingenergywhichreflectsthesummedresultofallinteractionsamongitsconstituentprotonsandneutrons.Thesystematicandaccurateknowledgeofnuclearmasseshavewideapplicationinmanyareasofsubatomicphysicsrangingfromnuclearstructureandastrophysicstothefundamentalinteractionsandsymmetriesdependingontheachievedmassprecision[1].
简介:<正>Weintroduceamodifiedsmall-worldnetworkaddingnewlinkswithnonlinearlypreferentialconnectioninsteadofaddingrandomly,thenweapplyBak-Sneppen(BS)evolutionmodelonthisnetwork.Westudyseveralimportantstructuralpropertiesofournetworksuchasthedistributionoflink-degree,themaximumlink-degree,andthegthoftheshortestpath.Wefurtherargueseveraldynamicalcharacteristicsofthemodelsuchastheimportantcriticalvaluefc,thef0avalanche,andthemutatingcondition,andfindthatthosecharacteristicsshowpanticularbehaviors.
简介:基于小世界网络在一个pulse-coupledintegrate-and-fire神经原模型变老和自我组织的criticality的效果被学习了。我们给老化网络,平均最短的路径长度,我们的网络的直径,和聚类的系数的度分发,并且发现我们的神经原模型显示幂定律行为,并且与然后增加的连接增加的棕土,老化的效果变得越来越小。这证明如果大脑以自我组织的criticality状态工作,它能减轻老化引起的一些效果。