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- In this paper, a discrete stage-structured epidemical model is proposed and studied. 本文主要讨论了离散的阶段结构传染病模型。
- An SIRS epidemic model with vaccination is investigated in this paper. 摘要该文讨论了一类带有接种的流行病模型。
- An SI epidemic model with standard incidence rate as follow is investigated. 研究如下一类具有标准发生率的SI型传染病模型。
- In Chapter 4, we consider SIR epidemical models with continuous and impulsive vaccinations, the incidence is bilinear.The reproduction numbers have been obtained for those models. 在第四章, 考虑了具有连续预防接种和脉冲预防接种的SIR流行病模型,分别获 得了它们各自的基本再生数。
- A predator-prey SIS epidemic model with infected prey is studied, and the effects of the disease on predation for the infected prey are not considered. 摘要研究了一类疾病只在食饵中存在的捕食系统的SIS传染病模型。在此模型中,不考虑疾病对捕获率的影响。
- Junyuan Yang, Rui Xu, Fengqin Zhang.A differential susceptibility and infectivity epidemic model with age of infection.Math.Sci.Res.J. 杨建雅,张凤琴,杨友社.;一类带有阶段结构的传染病模型的定性分析
- Analysis on a Species Mechanics Epidemical Model with Nonlinear Incidence Rate 一类具有非线性接触率的种群力学流行病模型分析
- Standing by him was a model worker. 站在他旁的是一位劳动模范。
- I think I can get that special model for you. 我想我可以为你找到那种特别的型号。
- She has been held up as a model worker. 她被推举为模范工作者。
- He showed us a model of the new office building. 他给我们看了新办公楼的模型。
- He taught Tom how to make a model airplane. 他教汤姆作模型飞机的方法。
- John is repairing his model plane at his leisure. 约翰不慌不忙地修理着他的航模。
- The old sailor chipped out a tiny model boat. 那名老水手一点儿一点儿地削出一个小船模型。
- The luxury model gives a smoother ride. 坐这种豪华型汽车感觉很平稳。
- That beautiful girl is a fashion model. 那位漂亮的女孩是一位时装模特儿。
- The first kind of the theories is based on the imperfection information, including Epidemic models and Bayesian learning models. 以信息不完全为出发点的理论研究主要包括传染病模型和贝叶斯学习模型等;
- The new model delivers speed and fuel economy. 这种新型设计能提高速度、 节约燃料。
- He assembled the model aircraft bit by bit. 他一块一块地装配飞机模型。
- He traded in his car for a new model. 他把旧汽车折价添钱买了辆新型号的。
- 今日热词
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries