A lightning strike accident of a residential house in the rural areas of Neijiang is analyzed through on-site investigation,and the causes are discussed. Defensive measures of lightning disasters are proposed to provi...A lightning strike accident of a residential house in the rural areas of Neijiang is analyzed through on-site investigation,and the causes are discussed. Defensive measures of lightning disasters are proposed to provide reference for the prevention of lightning disasters in the construction of new countryside.展开更多
The annual average number of snowstorm days in Tongliao area is 1-3 d.Snowstorms mainly happen from October to next May,peaking from December to next March.The incidence is the highest between 12:00 and 15:00.The Mong...The annual average number of snowstorm days in Tongliao area is 1-3 d.Snowstorms mainly happen from October to next May,peaking from December to next March.The incidence is the highest between 12:00 and 15:00.The Mongolian low vortex is the main weather system that triggers snowstorms,and can be classified into three types:small trough development,horizontal trough becoming vertical,and low trough moving eastwards.Snowstorms pose a relatively serious threat to agricultural and animal husbandry production,transportation,power and communication in Tongliao.Especially in spring,snowstorm weather poses a greater threat to agriculture and animal husbandry in Tongliao.It is needed to pay attention to the impact of extreme weather and climate events such as snowstorms,strengthen research on the mechanisms of disaster-causing weather,enhance the early warning capability of disasters,and provide good service guarantees for low-temperature weather in winter.展开更多
Tornado is a kind of local scale severe weather phenomenon which occurs between the bottom of the straight spreading cloud system and the underlying surface of the vertical empty tubular rotating air. Tornado can be s...Tornado is a kind of local scale severe weather phenomenon which occurs between the bottom of the straight spreading cloud system and the underlying surface of the vertical empty tubular rotating air. Tornado can be seen in tropical and temperate regions, including America inland, Western Australia, and Northeastern Indian Peninsula and so on. According to the shape and production environment, tornadoes can be divided into Multi-scroll Tornado, landspout, waterspout and so on. The seasonality of Tornado is weak, spring, summer, autumn can occur. Tornado is a very strong and powerful cyclone. It is difficult to recover from the disaster in a short time. This article describes the causes of tornado formation and damage capability of Tornado, and gives certain prevention methods and suggestions to minimize the harm as far as possible.展开更多
By analyzing climate condition during growth period of tobacco in Yuxian,scientific and reasonable production management measures are made. For meteorological disasters during growth period of tobacco, corresponding d...By analyzing climate condition during growth period of tobacco in Yuxian,scientific and reasonable production management measures are made. For meteorological disasters during growth period of tobacco, corresponding defense measures are put forward. It could provide the basis for further conducting meteorological service of tobacco, and the meteorological guide for farmers improving tobacco planting quality and decreasing the loss caused by the disastrous weather.展开更多
In the situation of inadequate vaccines and rapid mutation of virulent strains, alternative health interventions play a crucial role in the containment of emerging epidemics. This study elucidates the critical aspects...In the situation of inadequate vaccines and rapid mutation of virulent strains, alternative health interventions play a crucial role in the containment of emerging epidemics. This study elucidates the critical aspects of health interventions to control epidemic resurgence. Besides, human behavioral response to epidemics plays an instrumental role in bringing the success of control efforts. The appearance of multi-strain epidemics has become a global health concern that requires special attention. Here, we introduce a novel mean-field epidemic game approach to predict the evolutionary dynamics of flu-like epidemics having multiple disease strains. Our model illustrates the importance of multiple provisions alongside their timely execution for better disease attenuation. In addition to vaccination, we introduce self-protection as a potential alternative that yields safeguard against either strain. Both these imperfect provisions render better efficacy against primary (resident) strain than secondary (mutant) to contain epidemic transmission. The simulation-backed model analysis further sheds some light on the crucial impacts of control interventions to limit the invasion of virulent strains from qualitative and quantitative viewpoints. It explicates how vaccination and self-protection complement each other as per situation demands. Our full-fledged theoretical approach further illustrates the dynamic trade-off between the cost and efficacy of a certain intervention. We confirm that the disease dies out when the basic reproduction number of individual strains is less than one and becomes endemic if it is greater than one. Finally, the model addresses the evolutionary consequences when mutation takes place from primary to secondary strain. Some impressive facts while employing dual provisions have been reinforced using a game-theoretic framework.展开更多
Based on the theoretical framework of natural disaster prevention and emergency response systems,this study analyzes the core connotations of"prevention"and"defense"within the pre-disaster preventi...Based on the theoretical framework of natural disaster prevention and emergency response systems,this study analyzes the core connotations of"prevention"and"defense"within the pre-disaster prevention and control system for natural disasters,along with their synergistic mechanisms,uncovering their foundational roles in enhancing emergency response effectiveness and reducing disaster losses.The theoretical research results and practical models related to prevention and defense of natural disasters both domestically and internationally,are systematically reviewed in this paper,with a focus on analyzing the performance and existing issues in typical disaster cases,as well as analyzing successful cases and the shortcomings in actual emergency situations,by using literature review and case analysis.Through comparative case analysis,we propose three major research areas for future natural disaster prevention and defense:1)advancing research on disaster mechanisms and innovating comprehensive prevention and control theories,2)optimizing emergency management coordination systems and resilient resource allocation,and 3)strengthening technological support and enhancing social collaboration capabilities.展开更多
文摘A lightning strike accident of a residential house in the rural areas of Neijiang is analyzed through on-site investigation,and the causes are discussed. Defensive measures of lightning disasters are proposed to provide reference for the prevention of lightning disasters in the construction of new countryside.
文摘The annual average number of snowstorm days in Tongliao area is 1-3 d.Snowstorms mainly happen from October to next May,peaking from December to next March.The incidence is the highest between 12:00 and 15:00.The Mongolian low vortex is the main weather system that triggers snowstorms,and can be classified into three types:small trough development,horizontal trough becoming vertical,and low trough moving eastwards.Snowstorms pose a relatively serious threat to agricultural and animal husbandry production,transportation,power and communication in Tongliao.Especially in spring,snowstorm weather poses a greater threat to agriculture and animal husbandry in Tongliao.It is needed to pay attention to the impact of extreme weather and climate events such as snowstorms,strengthen research on the mechanisms of disaster-causing weather,enhance the early warning capability of disasters,and provide good service guarantees for low-temperature weather in winter.
文摘Tornado is a kind of local scale severe weather phenomenon which occurs between the bottom of the straight spreading cloud system and the underlying surface of the vertical empty tubular rotating air. Tornado can be seen in tropical and temperate regions, including America inland, Western Australia, and Northeastern Indian Peninsula and so on. According to the shape and production environment, tornadoes can be divided into Multi-scroll Tornado, landspout, waterspout and so on. The seasonality of Tornado is weak, spring, summer, autumn can occur. Tornado is a very strong and powerful cyclone. It is difficult to recover from the disaster in a short time. This article describes the causes of tornado formation and damage capability of Tornado, and gives certain prevention methods and suggestions to minimize the harm as far as possible.
文摘By analyzing climate condition during growth period of tobacco in Yuxian,scientific and reasonable production management measures are made. For meteorological disasters during growth period of tobacco, corresponding defense measures are put forward. It could provide the basis for further conducting meteorological service of tobacco, and the meteorological guide for farmers improving tobacco planting quality and decreasing the loss caused by the disastrous weather.
文摘In the situation of inadequate vaccines and rapid mutation of virulent strains, alternative health interventions play a crucial role in the containment of emerging epidemics. This study elucidates the critical aspects of health interventions to control epidemic resurgence. Besides, human behavioral response to epidemics plays an instrumental role in bringing the success of control efforts. The appearance of multi-strain epidemics has become a global health concern that requires special attention. Here, we introduce a novel mean-field epidemic game approach to predict the evolutionary dynamics of flu-like epidemics having multiple disease strains. Our model illustrates the importance of multiple provisions alongside their timely execution for better disease attenuation. In addition to vaccination, we introduce self-protection as a potential alternative that yields safeguard against either strain. Both these imperfect provisions render better efficacy against primary (resident) strain than secondary (mutant) to contain epidemic transmission. The simulation-backed model analysis further sheds some light on the crucial impacts of control interventions to limit the invasion of virulent strains from qualitative and quantitative viewpoints. It explicates how vaccination and self-protection complement each other as per situation demands. Our full-fledged theoretical approach further illustrates the dynamic trade-off between the cost and efficacy of a certain intervention. We confirm that the disease dies out when the basic reproduction number of individual strains is less than one and becomes endemic if it is greater than one. Finally, the model addresses the evolutionary consequences when mutation takes place from primary to secondary strain. Some impressive facts while employing dual provisions have been reinforced using a game-theoretic framework.
基金supported by the Key Science and Technology Project of the Ministry of Emergency Management of China(2024EMST030302,H.G.)the National Key R&D Program of China(2024YFC3012604,H.G.).
文摘Based on the theoretical framework of natural disaster prevention and emergency response systems,this study analyzes the core connotations of"prevention"and"defense"within the pre-disaster prevention and control system for natural disasters,along with their synergistic mechanisms,uncovering their foundational roles in enhancing emergency response effectiveness and reducing disaster losses.The theoretical research results and practical models related to prevention and defense of natural disasters both domestically and internationally,are systematically reviewed in this paper,with a focus on analyzing the performance and existing issues in typical disaster cases,as well as analyzing successful cases and the shortcomings in actual emergency situations,by using literature review and case analysis.Through comparative case analysis,we propose three major research areas for future natural disaster prevention and defense:1)advancing research on disaster mechanisms and innovating comprehensive prevention and control theories,2)optimizing emergency management coordination systems and resilient resource allocation,and 3)strengthening technological support and enhancing social collaboration capabilities.
