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简介：Inanactivenetwork,userscaninsertcustomizedactivecodesintoactivenodestoexecute.Thusitneedsmoreresourcesthanthoserequiredbyconventionalnetworks,andtheseresourcesmustbeeffectivelymonitoredandmanaged.ManagementpoliciesinexistingOSsaretoocomplicatedtoapplytosimpleactivepackets.Inthispaper,wepresentnewresourcesmanagementpoliciesthataremainlyadopedtomanageCPU,storageandtransmissionbandwidth.Namely,weuseSPFalgorithmtoscheduleandprocessactivepackets,andimportanintervalqueuemethodtoallocatetransmissionbandwidth,andusefeedbackmechanismtocontrolcongestion.Atthesametime,wedesignsomeexperimentsonprototypesystemswithandwithoutresourcesmanagementpoliciesrespectively.Theexperimentsresultsshowthatmanagementpoliciespresentedbyuscaneffectivelymanageresourcesinactivenodesandcanimprovetheperformanceofactivenetworks.

简介：AsreadersofCancerBiologyandMedicinewellknow,therehasbeenaseismicshiftinhumanmolecularbiologyoverthepastfewyears,asmomentousinitsownwayasthediscoveryofthedouble-helicalstructureofDNAbyWatsonandCrick60yearsago,theelucidationofthegeneticcodeshortlythereafter,theadventofrecombinantDNAandgenecloning

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简介：这份报纸关于一个参数依赖者接口地点为敏感的数字近似涉及精确、有效的计算算法的构造。在一根Euler-Bernoulli横梁上关于压电的致动器放置由敏感分析激发了，这个工作为兴趣的参数决定接口的地点的接口问题说明与敏感方程明确的表达有关的关键概念。第四个顺序模型问题被考虑的A，和为敏感计算的一个homogenization过程用标准有限元素方法被构造。数字结果证明敏感接口条件的合适的明确的表达和近似对获得会聚的数字敏感近似批评。第二命令椭圆形的接口模型问题也被提及，并且homogenization过程为这个模型简短被构画出。[从作者抽象]

简介：ThecoreissueforChinatransitiondevelopmentinthenext30yearsistoshiftfromthequantitygrowthmodeltothequalityimprovementmodel.Thepaperintroducestheresearchprogressinthreekeyareasofsustainabledevelopmentstudiessincethe1990s.Itispointedoutthatthereisawell-beingthresh-oldatwhichthemarginutilityofeconomicgrowthforhumanwell-beingwilldecline,thatthereisanecologicallimitbeyondwhichmoreeconomicgrowthintermsofphysicalscalewillbeimpossible,andthatthecreationofhumanwell-beingisrelatednotonlytotheamountbutalsotothestructureandefficiencyofpublicexpenditurefromgovernment.Afteranin-depthdiscussiononfacts,originsandpolicyimplicationsofeachissue,sometheoryandpolicythinkingwithlong-lastingsignificanceareraisedforthetransitiondevelopmentofChina.

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