英语翻译随着社会的发展,环境污染越来越严重,生态的破坏以及国际交流的频繁,传染病又成了我们必须面对的严肃问题.对传染病发

英语翻译
随着社会的发展,环境污染越来越严重,生态的破坏以及国际交流的频繁,传染病又成了我们必须面对的严肃问题.对传染病发病机理、传播规律和防治策略研究的重要性日益突出,建立能反映传染病动力学特性的数学模型、分析疾病的原因和关键因素、预防疾病的流行规律和发展趋势、寻求对其进行控制防治的最优策略成为当今世界上迫切需要解决的一个重要问题.一些恶性传染病甚至对国家的安全产生严重威胁,如2003年发生在我国的SARS传染疾病.为了加深对SARS的认识和了解.根据传染性疾病的传播特点,建立了关于SARS病人率和疑似病人率几个常微分方程模型.通过查阅文献增强SARS模型背景的理解,加深对SART的认识和了解,根据传染性疾病的传播特点,进而分析讨论一般的SARS模型的稳定性,了解讨论动力学模型的基本思路和方法,以所给数据为基本依据,用Matlab软件进行数值计算,论文需要介绍SARS的背景和研究状况,介绍模型的建立,考虑较为一般的SARS动力学模型,查找参考文献和模型的研究状况.定义基本再生数,讨论系统的稳定性.对模型做数值模拟,给出数值结果.从而进一步揭示隔离对传染性疾病的积极作用,得到比较好的数值结果.

With the development of society,more and more serious environmental pollution,ecological damage as well as international exchange frequent infectious diseases became serious questions that we must face.Pathogenesis of infectious diseases,the spread of law and the importance of prevention strategy research increasingly reflect the dynamics of infectious diseases mathematical model to analyze the cause of the disease and the key factors,the prevalence of disease prevention laws and trends for its the optimal strategy to control prevention become an important issue in the world today on the urgent need to address.Some malignant diseases and even serious threat to the security of the country,such as the 2003 SARS of infectious diseases.In order to deepen the knowledge and understanding of SARS.Features according to the spread of infectious diseases,the establishment of several ordinary differential equation model for SARS patients and suspected patients rate.Literature to enhance the understanding of the background of the SARS model,to deepen knowledge and understanding of the SART characteristics of the spread of infectious diseases,and then analyzed and discussed the stability of the SARS model to understand the basic ideas and methods of the discussion kinetic model to the to the data as the fundamental basis for numerical calculation using Matlab software,papers need to introduce the background and status of the SARS to introduce model,consider the more general dynamic model of SARS,find references and model condition.Define the basic reproductive number,to discuss the stability of the system.Model numerical simulation,numerical results are given.To further reveal the positive role of isolation of infectious diseases,get better numerical results.