Stability of SEIR Model with Saturated Incidence Rate
Journal Title: 河南科技大学学报(自然科学版) - Year 2017, Vol 38, Issue 1
Abstract
The stability of susceptible-exposed-infectious-recovered( SEIR) model with vertical transmission and saturated incidence rate was discussed,and the effect of vaccination on transmission of infectious disease was considered. The basic reproductive number R0 of the model was calculated. The disease-free equilibrium was proved to be local asymptotically stable and global asymptotically stable when R0≤ 1. The endemic equilibrium was proved to be local asymptotically stable and global asymptotically stable under certain conditions when R0> 1 by using Hurwitz criterion and the second additive compound matrix.
Authors and Affiliations
Caihong YANG, Zhixing HU
Motor Control of Pure Electric Vehicle Based on BP Fuzzy Neural Network Control
A proportional integral( PI) controller was designed based on back propagation( BP) fuzzy neural network to solve the problem that traditional PI control could not reach good control effect of the motor. Driver operation...
Joint Simulation of Fuel-cell Stack and Voltage Converter for Vehicle
In view of the unstable output characteristic of the proton exchange membrane fuel-cell( PEMFC),a direct current( DC)-DC voltage converter model was designed. The main circuit adopted the boost circuit and the control ci...
Synthesis and Self-assembly of Polyacrylamide-b-polystyrene
1
Milling Force Model of Spiral Bevel Gear Milling Machine and Cutting Test
In order to improve the cutting performance of milling machine,the calculating method for instantaneous undeformed cutting width and thickness was put forward. According to the formula of instantaneous undeformed cutting...
Microwave Assisted Preparation of Zinc Cobaltite Nanoflowers and Lithium Storage Properties
Zinc cobaltite ( ZnCo2O4) nanoflowers were prepared by microwave assisted liquid phase method and annealing treatment. The effects of different annealing temperatures on performance of as-prepared samples were investigat...