简介:在大规模上在因特网上由于部署因特网协议(IP)的困难多点传送,覆盖多点传送被看作了一种有希望的选择在最近的年里开发multicast通讯。然而,存在覆盖多点传送解决方案受不了高费用在提交树的multicast维持节点的州的信息。一个无状态的覆盖多点传送计划被建议,在哪个multicast路由信息被一个花蕾过滤器(BF)编码并且没有对维持提交树的multicast的任何需要,包含了进包头。我们的计划利用节点异质,在物理拓扑学并且层次地的最近信息由把几何坐标分到所有覆盖节点构造运输树桩覆盖拓扑学。更重要地,计划使用BF技术识别提交树的multicast的节点和连接,它改进提交的效率并且减少假积极的提交环。分析并且模拟结果证明这个建议能完成高提交效率和好可伸缩性。
简介:Thewaveletpackettransformisusedforthedamagedetectionofoffshoreplatforms.Whensomedamageoccurs,thedynamicresponseparametersofthestructurewillshiftsubtly.However,insomecases,thedynamicparameters,suchasdynamicresponse,arenotsensitive,anditisverydifficulttopredicttheexistenceofdamage.Thepresentpaperaimstodescribehowtofindsmalldamagebytheuseofwaveletpackettransform.Asthewaveletpackettransformcanbeusedtoquicklyfindthesingularityoftheresponsesignalondifferentscales,theaccelerationsignalofadamagedoffshoreplatforminthetimedomainistransformedthroughthewaveletpacket.ExperimentalresultsshowthattheDaubechies4wavelettransformcanbeusedtodetectdamage.
简介:Thequantumcorrespondenceofoneparticularsignatureofclassicalchaos———theexponentialinstabilityfmotioncanbecharacterizedbytheinitialexponentialgrowthrateofthespreadingwidthofthepropagatingquantumwavepacket.Inaformerstudy~[1]aonetoonecorrespondencehasbeenfoundbetweentheinitial
简介:包分类被学习十年了;它基于一个给定的规则集合分类包进特定的流动。当定义软件的网络被建议,包分类的一个最近的趋势是放大五元组的模型到多元组。一般来说,多重地上的包分类是一个复杂问题。尽管大多数存在softwarebased算法在实践被证明非凡,他们对经典五元组的模型仅仅合适并且对困难被扩大规模。同时,硬件特定的答案不可弯曲、昂贵,并且他们中的一些是消费的力量。在这份报纸,我们为多核心系统建议一条通用的多维的包分类途径。在我们的途径,新奇数据结构和四个基于分解的算法被设计优化分类并且规则更新。为多地规则,一个规则集合根据领域的数字被切成几部分。每部分独立地工作。这样,这些地在平行被寻找,所有部分结果最后一起被合并。表明我们的途径的可行性,我们实现一个原型并且评估它的产量和潜伏。试验性的结果证明我们的途径比另外的分解底的算法和43%更低的潜伏的完成40%更高的产量平均比另外的算法的统治增长更改。而且,我们的途径平均节省39%记忆消费并且有好可伸缩性。
简介:Inthispaper,thestabilizationproblemforaclassofnetworkedcontrolsystems(NCSs)withdatapacketdropoutsandtransmissiontimedelaysisconsidered,wherethedelaysaretime-varyinganduncertain,thedatapacketdropoutismodeledasatwo-stateMarkovchain.Tocompensatethelostpacket,adatapacketdropoutcompensatorisestablished.ThusamorerealisticmodelforsuchNCSsispresented.Sufficientconditionsforthestabilizationofthenewresultingsystemarederivedintheformoflinearmatrixinequalities(LMIs).Numericalexampleillustratesthesolvabilityandeffectivenessoftheresults.
简介:Identificationmethodofweakseismicphasesonthebasisofwaveletpackettrans-formXI-QIANGLIU1)3)(刘希强)HUI-LANZHOU1)(周惠兰)ZHI-ZHENZHENG...
简介:AninvivofluorescencediscriminationtechniqueforphytoplanktonpopulationwasdevelopedbyusingWaveletpackettransform,clusteranalysisandnon-negativeleastsquares.Thetechniquewasusedtoanalyzewatersamplesfromdifferentsearegions.Forsimulativemixtures,whendominantspeciesaccountfor60%,70%,80%,90%atthedivisionlevel,thecorrectdiscriminationratios(CDRs)are83.0%,99.1%,99.7%and99.9%withtherelativecontentsof58.5%,68.4%,77.7%and86.3%,respectively;whenthealgaedominanceare60%,70%,80%,90%,100%atthegenuslevel,theCDRsare86.1%,94.9%,95.2%,96.8%and96.7%,respectively.Forlaboratorymixtures,theCDRsare88.1%and78.4%atthedivisionandgenuslevel,respectively.Forfieldsamples,theCDRswere91.7%and80%atthedivisionandgenuslevel,respectively(mesocosmexperiments),andtheCDRswere100%and66.7%atthedivisionandgenuslevel,respectively(JiaozhouBay).ThefluorometrictechniquewasusedtoestimatethephytoplanktoncommunitycompositionandrelativeabundanceofdifferentclassesfortheApril2010cruiseintheYellowSeawiththeresultsagreeingwiththoseinpublishedpapersbyotherauthors.