In this paper, the SEIR model with this saturating contact rate is studied.
在这个文件中，这个饱和接触率的SEIR模型进行了研究。
The second one, based on the SEIR model, considers the birth rate and death rate of Internet worms.
第二个模型基于SEIR模型，考虑了网络蠕虫出生率和死亡率的影响。
SEIR dynamic model of SARS epidemic with a latent period and permanent immune is established.
建立了带有潜伏期及终身免疫的SARS流行病的SE IR动力学模型。
In the second section, considering the permanent immunity factor, the SEIR epidemic model with infectious force in the latent period which makes the model more universal is investigated.
第二部分考虑了永久免疫力因素，研究了一类潜伏期具有传染力的SEIR模型，使模型更具有广泛性。
The existence and uniqueness of nonnegative solution for a class of age-structured SEIR epidemic model;
通过初等方法，证明了此冗余系统非负解的存在唯一性。
The existence and uniqueness of nonnegative solution for a class of age-structured SEIR epidemic model;
通过初等方法，证明了此冗余系统非负解的存在唯一性。
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