,Effect of incubation period on epidemic spreading in complex networks

来源 :中国物理B(英文版) | 被引量 : 0次 | 上传用户:ironbra
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
We study the effect of incubation period on epidemic spreading in the Barabasi-Albert scale-free network and the Watts-Strogatz small world network by using a Suspectable-Incubated-Infected-Suspectable model.Our analytical investigations show that the epidemic threshold is independent of incubation period in both networks,which is verified by our large-scale simulation results.We also investigate the effect of incubation period on the epidemic dynamics in a supercritical regime.It is found that with the increase of incubation period Ω,a damped oscillation evolution of ρΤ(the ratio of persons in incubated state)appears and the time needed to reach a saturation value increases.Moreover,the steady value of ρI increases and approaches to an asymptotic constant with the value of Ω increasing.As a result,the infected ratio ρΤ decreases with the increase of Ω according to a power law.
其他文献
More and more attention has been focused on effectively generating chaos via simple physical devices. The problem of creating chaotic attractors is considered f
该品种是河北省石家庄地区农科所育成。其亲本组合是邢台6871×(晋68-389×辽632-125)F_4。1990年通过河北省预审定,并被列为河北省重点推广品种。当年推广面积40余万亩。产
字叶青系江阴市华士镇农科站和江阴市农科所用字红3号和若叶杂交选育而成的中熟晚粳。该品种具有高产稳产和优质抗病的特点。据1989年统计,在沿江地区南部种植面积已达41万
偃麦草作为普通小麦的重要近缘植物,具有很多普通小麦所不具备的优良特性。利用远缘杂交技术把偃麦草优良基因导入小麦中,不仅可以增加普通小麦的遗传多样性,还为小麦遗传育种创造了新的种质资源。山农31504-2、31504-3是从小麦-长穗偃麦草杂交后代中选育的矮秆种质系,本研究利用其与不同株高小麦材料杂交,分析其株高和节间长度构成,探讨小偃麦矮秆种质系的株高遗传效应,并利用分子标记技术对控制株高性状的Q
This paper develops a Fortran code which is capable to construct the simplest LS eigcnfunctions for desired symmetry and determine all permitted atomic LS spect
This paper studies a new conserved quantity which can be called generalized Mei conserved quantity and directly deduced by Mei symmetry of Birkhoff system.The c