This paper puts forward essential technical issues pertinent to frontline personnel,including terminal managers,air traffic controllers,aerial observers,and operational aircrews engaged in aviation forest protection o...This paper puts forward essential technical issues pertinent to frontline personnel,including terminal managers,air traffic controllers,aerial observers,and operational aircrews engaged in aviation forest protection operations.Critical topics discussed include the calculation of coordinates,the establishment of a database for significant operational points,and the systems about communication and navigation and surveillance of aircraft.Ultimately,the paper provides recommendations designed to improve the safety and efficiency of aviation forest protection operations,thereby aligning with the objectives of the low-altitude economy policy.展开更多
The implementation of green energy transformation,clean energy power replacement and supply,and the construction of the new power system are the primary driving forces for achieving strategic goals of carbon peak and ...The implementation of green energy transformation,clean energy power replacement and supply,and the construction of the new power system are the primary driving forces for achieving strategic goals of carbon peak and carbon neutrality in China.The construction of the new power system is in a critical period of initiation and development,and it is necessary to clarify the direction of future development,clarify the current technical challenges and key technical issues,and determine the key technical tasks for the future.In this context,this study analyzes the development direction,technical issues,and key construction tasks of the new power system.Firstly,the development challenges of the new power system are analyzed from two aspects:the current si-tuation of flexible regulation resources and the safety issues related to frequency and voltage.Secondly,the direction of technological innovation is analyzed from four aspects:the multiple power sources complementarity technology,power source and power grid collaborative technology,power supply and load interaction tech-nology,and flexible and intelligent control technology.On this basis,three major technical issues are sorted out.Finally,the key construction tasks of the basic theory,flexible power generation,and collaborative control are detailed.展开更多
The People’s Bank of China（PBOC）recently issued the regulations on QR code payment service（Trial）and two other relevant technical specifications to regulate payments by scanning two-dimensional barcode,which are ...The People’s Bank of China（PBOC）recently issued the regulations on QR code payment service（Trial）and two other relevant technical specifications to regulate payments by scanning two-dimensional barcode,which are to take effect on April 1,2018.Payment institutions must obtain proper permits to offer barcode-based payment services by then.Payments with QR codes are increasingly common in China for purchases in large or small shops,展开更多
On April 11, 2025, the Tech4Good Global Competition was held in Shenzhen, south China's Guangdong Province. Launched by China's tech giant Huawei in 2021, it is a startup project competition designed to raise ...On April 11, 2025, the Tech4Good Global Competition was held in Shenzhen, south China's Guangdong Province. Launched by China's tech giant Huawei in 2021, it is a startup project competition designed to raise students' awareness of local sustainable development challenges while embracing the latest digital trends, with the goal of developing technically and commercially viable solutions to address social issues. A total of 12 teams from around the world participated, with the Ethiopian team winning the gold award with an AI-powered livestock health platform for early disease detection and better veterinary care.展开更多
文摘This paper puts forward essential technical issues pertinent to frontline personnel,including terminal managers,air traffic controllers,aerial observers,and operational aircrews engaged in aviation forest protection operations.Critical topics discussed include the calculation of coordinates,the establishment of a database for significant operational points,and the systems about communication and navigation and surveillance of aircraft.Ultimately,the paper provides recommendations designed to improve the safety and efficiency of aviation forest protection operations,thereby aligning with the objectives of the low-altitude economy policy.
基金supported by the China National Postdoctoral Program for Innovative Talents(BX20240135)the China Postdoctoral Science Foundation(2024M751066).
文摘The implementation of green energy transformation,clean energy power replacement and supply,and the construction of the new power system are the primary driving forces for achieving strategic goals of carbon peak and carbon neutrality in China.The construction of the new power system is in a critical period of initiation and development,and it is necessary to clarify the direction of future development,clarify the current technical challenges and key technical issues,and determine the key technical tasks for the future.In this context,this study analyzes the development direction,technical issues,and key construction tasks of the new power system.Firstly,the development challenges of the new power system are analyzed from two aspects:the current si-tuation of flexible regulation resources and the safety issues related to frequency and voltage.Secondly,the direction of technological innovation is analyzed from four aspects:the multiple power sources complementarity technology,power source and power grid collaborative technology,power supply and load interaction tech-nology,and flexible and intelligent control technology.On this basis,three major technical issues are sorted out.Finally,the key construction tasks of the basic theory,flexible power generation,and collaborative control are detailed.
文摘The People’s Bank of China（PBOC）recently issued the regulations on QR code payment service（Trial）and two other relevant technical specifications to regulate payments by scanning two-dimensional barcode,which are to take effect on April 1,2018.Payment institutions must obtain proper permits to offer barcode-based payment services by then.Payments with QR codes are increasingly common in China for purchases in large or small shops,
文摘On April 11, 2025, the Tech4Good Global Competition was held in Shenzhen, south China's Guangdong Province. Launched by China's tech giant Huawei in 2021, it is a startup project competition designed to raise students' awareness of local sustainable development challenges while embracing the latest digital trends, with the goal of developing technically and commercially viable solutions to address social issues. A total of 12 teams from around the world participated, with the Ethiopian team winning the gold award with an AI-powered livestock health platform for early disease detection and better veterinary care.
