This paper researches and analyses the critical envirormental situation in the Middle Reaches of the Yellow River and compiles the map of critical environmental situation of this area (1:2,000,000). Five types of envi...This paper researches and analyses the critical envirormental situation in the Middle Reaches of the Yellow River and compiles the map of critical environmental situation of this area (1:2,000,000). Five types of environmental situation (ES) are divided, namely, conflict ES, critical ES, crisis ES, disastrous ES and accidental ES and 7 groups of main factors are used to identify and classify the critical environmental situation after considering the speciality of this region and the law of guiding factors. They are pollution, endemic disease, soil erosion, drought and water-shortage, forest degeration, wind-erosion and desertification, and soil salinization. Based on mapping and analysis, the paper also concludes the regional distribution law of critical environmental situation of this region and divides it into 8 small districts through combining the critical envirormental situation, regional distribution law and guiding factors. This can provide scientific basis and reference for preserving and renovating the environments with different fragile types and fragile levels.展开更多
Public high school in Lvshun is a typical example of modern school architecture in Dalian during the Japanese colonial period. This paper summarises the historical background, development and current situation of the ...Public high school in Lvshun is a typical example of modern school architecture in Dalian during the Japanese colonial period. This paper summarises the historical background, development and current situation of the old site of public high school in Lvshun by approaches such as historical literature research and present situation surveying. Then, it analyses the characteristics of public high schools in Lvshun in four aspects: architectural scale, plane function, architectural style and material structure. After that, the school is judged to have four dimensions of value: historical, technological, and cultural and use value. In the end, this paper explores the protection and reuse of the building from the aspects of authenticity, suitability and integrity. It is intended to provide a theoretical basis for the protection and reutilization of modern architectural heritage.展开更多
Collaborating with a squad of Unmanned Aerial Vehicles(UAVs)is challenging for a human operator in a cooperative surveillance task.In this paper,we propose a cognitive model that can dynamically adjust the Levels of A...Collaborating with a squad of Unmanned Aerial Vehicles(UAVs)is challenging for a human operator in a cooperative surveillance task.In this paper,we propose a cognitive model that can dynamically adjust the Levels of Autonomy(LOA)of the human-UAVs team according to the changes in task complexity and human cognitive states.Specifically,we use the Situated Fuzzy Cognitive Map(Si FCM)to model the relations among tasks,situations,human states and LOA.A recurrent structure has been used to learn the strategy of adjusting the LOA,while the collaboration task is separated into a perception routine and a control routine.Experiment results have shown that the workload of the human operator is well balanced with the task efficiency.展开更多
文摘This paper researches and analyses the critical envirormental situation in the Middle Reaches of the Yellow River and compiles the map of critical environmental situation of this area (1:2,000,000). Five types of environmental situation (ES) are divided, namely, conflict ES, critical ES, crisis ES, disastrous ES and accidental ES and 7 groups of main factors are used to identify and classify the critical environmental situation after considering the speciality of this region and the law of guiding factors. They are pollution, endemic disease, soil erosion, drought and water-shortage, forest degeration, wind-erosion and desertification, and soil salinization. Based on mapping and analysis, the paper also concludes the regional distribution law of critical environmental situation of this region and divides it into 8 small districts through combining the critical envirormental situation, regional distribution law and guiding factors. This can provide scientific basis and reference for preserving and renovating the environments with different fragile types and fragile levels.
文摘Public high school in Lvshun is a typical example of modern school architecture in Dalian during the Japanese colonial period. This paper summarises the historical background, development and current situation of the old site of public high school in Lvshun by approaches such as historical literature research and present situation surveying. Then, it analyses the characteristics of public high schools in Lvshun in four aspects: architectural scale, plane function, architectural style and material structure. After that, the school is judged to have four dimensions of value: historical, technological, and cultural and use value. In the end, this paper explores the protection and reuse of the building from the aspects of authenticity, suitability and integrity. It is intended to provide a theoretical basis for the protection and reutilization of modern architectural heritage.
基金supported by the National Natural Science Foundation of China(No.61876187)。
文摘Collaborating with a squad of Unmanned Aerial Vehicles(UAVs)is challenging for a human operator in a cooperative surveillance task.In this paper,we propose a cognitive model that can dynamically adjust the Levels of Autonomy(LOA)of the human-UAVs team according to the changes in task complexity and human cognitive states.Specifically,we use the Situated Fuzzy Cognitive Map(Si FCM)to model the relations among tasks,situations,human states and LOA.A recurrent structure has been used to learn the strategy of adjusting the LOA,while the collaboration task is separated into a perception routine and a control routine.Experiment results have shown that the workload of the human operator is well balanced with the task efficiency.
