Supported by National Natural Science Foundation of China(12272062).
In this paper,we study the dynamics of a Susceptible-Exposed-Infectious-Recovered(SEIR)nancial risk contagion model with time delay.Using stability theory and Hopf bifurcation theory,equilibria stability and Hopf bifu...
In order to minimize the impact of COVID-19 on entities such as the hotel industry,this article analyzes the development status of the hotel industry under the epidemic and suggests countermeasures for self-rescue and...
In recent years, a large number of natural disasters happened in China, which caused heavy casualties, property losses and destruction of social order. Emergency self-rescue furniture design for natural disasters was ...
Firstly, the background of earthquake disasters occurred recently and the necessity of furniture design with earthquake emergency self-rescue function were analyzed. Then the research situation on furniture design wit...