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 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 bifurcation are analyzed in detail.Based on the epidemic model,we improve it by taking prior prevention and self-rescue into consideration,conclude pre-ventive intensity and self-rescue capabilities e ect the number of infections.At the same time,the analytical conditions for Hopf bifurcation are obtained,and the relevant results are veri ed by numerical simulations.展开更多
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...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 with earthquake emergency self-rescue function were summarized, and the rethinking on functional design of furniture, especially design on form and structure, were conducted based on analysis of theoretical basis of furniture design with earthquake emergency self-rescue function. Finally, bedside tables were designed as demonstration, which provides a new approach to furniture design with earthquake emergency self-rescue function.展开更多
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 ...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 taken as the research object in this paper. The definition and meanings of emergency self-rescue furniture were discussed, then the design principles of emergency self-rescue furniture were analyzed, validity of emergency self-rescue furniture design principles and methods for earthquake and flood were verified through demonstrations, finally.展开更多
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 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 transformation,such as improving basic settings and optimizing management.These strategies provide ideas and suggestions to comprehensively improve the risk response of hotels and the implementation of sustainable development strategy.展开更多
基金Supported by National Natural Science Foundation of China(12272062).
文摘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 bifurcation are analyzed in detail.Based on the epidemic model,we improve it by taking prior prevention and self-rescue into consideration,conclude pre-ventive intensity and self-rescue capabilities e ect the number of infections.At the same time,the analytical conditions for Hopf bifurcation are obtained,and the relevant results are veri ed by numerical simulations.
文摘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 with earthquake emergency self-rescue function were summarized, and the rethinking on functional design of furniture, especially design on form and structure, were conducted based on analysis of theoretical basis of furniture design with earthquake emergency self-rescue function. Finally, bedside tables were designed as demonstration, which provides a new approach to furniture design with earthquake emergency self-rescue function.
文摘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 taken as the research object in this paper. The definition and meanings of emergency self-rescue furniture were discussed, then the design principles of emergency self-rescue furniture were analyzed, validity of emergency self-rescue furniture design principles and methods for earthquake and flood were verified through demonstrations, finally.
文摘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 transformation,such as improving basic settings and optimizing management.These strategies provide ideas and suggestions to comprehensively improve the risk response of hotels and the implementation of sustainable development strategy.
