傳染病動力學(xué)模型中的地方病閾值
發(fā)布時間:2018-09-17 10:14
【摘要】:本文旨在介紹和研究傳染病動力學(xué)模型中的地方病閾值。主要內(nèi)容如下: 第一章,介紹了兩個最基本的傳染病動力學(xué)模型:SIR和SIS模型,并且在此基礎(chǔ)上引出了常微分方程自治系統(tǒng)描述的傳染病模型的基本再生數(shù)的定義及其計算。 第二章,提出了具有年齡結(jié)構(gòu)和周期傳染率的的SIS模型。把個體的一生分為未成年和成年兩個階段,只有未成年者會感染疾病。在模型中,,假設(shè)接觸感染率為時間的周期函數(shù),研究模型解的漸近行為,得到了疾病傳播的閾值。
[Abstract]:The purpose of this paper is to introduce and study the threshold of endemic disease in epidemic dynamics model. The main contents are as follows: the first chapter introduces two basic infectious disease dynamics models: Sir and SIS. On this basis, the definition and calculation of the basic reproduction number of the infectious disease model described by the autonomous system of ordinary differential equations are introduced. In chapter 2, a SIS model with age structure and periodic infection rate is proposed. The life of an individual is divided into two stages: minor and adult. In the model, assuming that the contact infection rate is a periodic function of time, the asymptotic behavior of the solution of the model is studied, and the threshold of disease transmission is obtained.
【學(xué)位授予單位】:南京師范大學(xué)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2006
【分類號】:R181.3
本文編號:2245545
[Abstract]:The purpose of this paper is to introduce and study the threshold of endemic disease in epidemic dynamics model. The main contents are as follows: the first chapter introduces two basic infectious disease dynamics models: Sir and SIS. On this basis, the definition and calculation of the basic reproduction number of the infectious disease model described by the autonomous system of ordinary differential equations are introduced. In chapter 2, a SIS model with age structure and periodic infection rate is proposed. The life of an individual is divided into two stages: minor and adult. In the model, assuming that the contact infection rate is a periodic function of time, the asymptotic behavior of the solution of the model is studied, and the threshold of disease transmission is obtained.
【學(xué)位授予單位】:南京師范大學(xué)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2006
【分類號】:R181.3
【參考文獻(xiàn)】
相關(guān)期刊論文 前1條
1 靳禎,馬知恩;一類出身具有種群動力的非自治流行病模型[J];山西大學(xué)學(xué)報(自然科學(xué)版);2001年03期
本文編號:2245545
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