A real-time operating system （RTOS）, also named OS, is designed based on the hardware platform of MC68376, and is implemented in the electronic control system for unit pump in diesel engine. A parallel and time-base...A real-time operating system （RTOS）, also named OS, is designed based on the hardware platform of MC68376, and is implemented in the electronic control system for unit pump in diesel engine. A parallel and time-based task division method is introduced and the multi-task software architecture is built in the software system for electronic unit pump （EUP） system. The V-model software development process is used to control algorithm of each task. The simulation results of the hardware-in-the-loop simulation system （HILSS） and the engine experimental results show that the OS is an efficient real-time kernel, and can meet the real-time demands of EUP system; The built multi-task software system is real-time, determinate and reliable. V-model development is a good development process of control algorithms for EUP system, the control precision of control system can be ensured, and the development cycle and cost are also decreased.展开更多
Introduction to HEC Harbin Electric Machinery Company Limited (HEC) is a pivotal company that produces large electric machinery and accessorial control equipment in China. The hydro units made by HEC have
Introductory Remarks Nobody denies that the West was the cradle of the concept of human rights. Since the American and French revolutions of the end of the eigh- teenth century, the human rights were centered on the ...Introductory Remarks Nobody denies that the West was the cradle of the concept of human rights. Since the American and French revolutions of the end of the eigh- teenth century, the human rights were centered on the individual. Human rights were considered to be individual rights. However, within the expression ＂human rights,＂ the word ＂human,＂ meaning individual human beings, was during a rather long time understood in a rather narrow sense.展开更多
Based on the waterflooding development in carbonate reservoirs in the Middle East,in order to solve the problem of the poor development effects caused by commingled injection and production,taking the thick bioclastic...Based on the waterflooding development in carbonate reservoirs in the Middle East,in order to solve the problem of the poor development effects caused by commingled injection and production,taking the thick bioclastic limestone reservoirs of Cretaceous in Iran-Iraq as an example,this paper proposes a balanced waterflooding development technology for thick and complex carbonate reservoirs.This technology includes the fine division of development units by concealed baffles and barriers,the combination of multi well type and multi well pattern,and the construction of balanced water injection and recovery system.Thick carbonate reservoirs in Iran-Iraq are characterized by extremely vertical heterogeneity,development of multi-genesis ultra-high permeability zones,and highly concealed baffles and barriers.Based on the technologies of identification,characterization,and sealing evaluation for concealed baffles and barriers,the balanced waterflooding development technology is proposed,and three types of balanced waterflooding development modes/techniques are formed,namely,conventional stratigraphic framework,fine stratigraphic framework,and deepened stratigraphic framework.Numerical simulations show that this technology is able to realize a fine and efficient waterflooding development to recover,in a balanced manner,the reserves of thick and complex carbonate reservoirs in Iran and Iraq.The proposed technology provides a reference for the development optimization of similar reservoirs.展开更多
Language acquisition is a system with four components： language development, academic development, cognitive development and sociocultural development. Based on this theory, Chinese students in the United States are ...Language acquisition is a system with four components： language development, academic development, cognitive development and sociocultural development. Based on this theory, Chinese students in the United States are studied from three perspectives： linguistically, culturally, and social psychologically. It indicated that, to help Chinese students develop their English performance and cultural appreciation in this diverse world, the profession of English teaching in China should cover a variety of domains, including linguistic, cultural and psychological input. Both American and Chinese education can benefit from this special group of Chinese students if they can be better understood, and used as a bridge between China and U. S. cultural and academic exchange. In the meantime, the mirror held up to the Chinese students in these perspectives reflects not only who they are but also who they can become.展开更多
UNDP official discusses transforming Africa-China partnerships through innovation,trade,and green growth Representatives from numerous interna-tional organisations,including the United Nations Development Programme(UN...UNDP official discusses transforming Africa-China partnerships through innovation,trade,and green growth Representatives from numerous interna-tional organisations,including the United Nations Development Programme(UNDP),attended the fourth China-Africa Economic and Trade Expo(CAETE),held in June in Changsha,Hunan Province.Among them was Ahunna Eziakonwa,UN assistant secretary general and director of the UNDP Regional Bureau for Africa,who took part in several activities at the expo.Her mission focused on promoting sustainable development across Africa through trade,innovation,and responsible investment.展开更多
Guangxi Zhuang Autonomous Region is one of the most densely clustered regions of“Longevity County”in China,and Bama County is a typical representative of mountainous and hilly longevity villages in the country.In re...Guangxi Zhuang Autonomous Region is one of the most densely clustered regions of“Longevity County”in China,and Bama County is a typical representative of mountainous and hilly longevity villages in the country.In recent years,the local government and residents have actively embraced the United Nations Sustainable Development Goals(SDGs)and the Healthy China Initiative,striving to implement the scientific principle that“lucid waters and lush mountains are invaluable assets.”展开更多
文摘A real-time operating system （RTOS）, also named OS, is designed based on the hardware platform of MC68376, and is implemented in the electronic control system for unit pump in diesel engine. A parallel and time-based task division method is introduced and the multi-task software architecture is built in the software system for electronic unit pump （EUP） system. The V-model software development process is used to control algorithm of each task. The simulation results of the hardware-in-the-loop simulation system （HILSS） and the engine experimental results show that the OS is an efficient real-time kernel, and can meet the real-time demands of EUP system; The built multi-task software system is real-time, determinate and reliable. V-model development is a good development process of control algorithms for EUP system, the control precision of control system can be ensured, and the development cycle and cost are also decreased.
文摘Introduction to HEC Harbin Electric Machinery Company Limited (HEC) is a pivotal company that produces large electric machinery and accessorial control equipment in China. The hydro units made by HEC have
文摘Introductory Remarks Nobody denies that the West was the cradle of the concept of human rights. Since the American and French revolutions of the end of the eigh- teenth century, the human rights were centered on the individual. Human rights were considered to be individual rights. However, within the expression ＂human rights,＂ the word ＂human,＂ meaning individual human beings, was during a rather long time understood in a rather narrow sense.
基金Supported by the Major Science and Technology Project of CNPC(2023ZZ19-01).
文摘Based on the waterflooding development in carbonate reservoirs in the Middle East,in order to solve the problem of the poor development effects caused by commingled injection and production,taking the thick bioclastic limestone reservoirs of Cretaceous in Iran-Iraq as an example,this paper proposes a balanced waterflooding development technology for thick and complex carbonate reservoirs.This technology includes the fine division of development units by concealed baffles and barriers,the combination of multi well type and multi well pattern,and the construction of balanced water injection and recovery system.Thick carbonate reservoirs in Iran-Iraq are characterized by extremely vertical heterogeneity,development of multi-genesis ultra-high permeability zones,and highly concealed baffles and barriers.Based on the technologies of identification,characterization,and sealing evaluation for concealed baffles and barriers,the balanced waterflooding development technology is proposed,and three types of balanced waterflooding development modes/techniques are formed,namely,conventional stratigraphic framework,fine stratigraphic framework,and deepened stratigraphic framework.Numerical simulations show that this technology is able to realize a fine and efficient waterflooding development to recover,in a balanced manner,the reserves of thick and complex carbonate reservoirs in Iran and Iraq.The proposed technology provides a reference for the development optimization of similar reservoirs.
文摘Language acquisition is a system with four components： language development, academic development, cognitive development and sociocultural development. Based on this theory, Chinese students in the United States are studied from three perspectives： linguistically, culturally, and social psychologically. It indicated that, to help Chinese students develop their English performance and cultural appreciation in this diverse world, the profession of English teaching in China should cover a variety of domains, including linguistic, cultural and psychological input. Both American and Chinese education can benefit from this special group of Chinese students if they can be better understood, and used as a bridge between China and U. S. cultural and academic exchange. In the meantime, the mirror held up to the Chinese students in these perspectives reflects not only who they are but also who they can become.
文摘UNDP official discusses transforming Africa-China partnerships through innovation,trade,and green growth Representatives from numerous interna-tional organisations,including the United Nations Development Programme(UNDP),attended the fourth China-Africa Economic and Trade Expo(CAETE),held in June in Changsha,Hunan Province.Among them was Ahunna Eziakonwa,UN assistant secretary general and director of the UNDP Regional Bureau for Africa,who took part in several activities at the expo.Her mission focused on promoting sustainable development across Africa through trade,innovation,and responsible investment.
文摘Guangxi Zhuang Autonomous Region is one of the most densely clustered regions of“Longevity County”in China,and Bama County is a typical representative of mountainous and hilly longevity villages in the country.In recent years,the local government and residents have actively embraced the United Nations Sustainable Development Goals(SDGs)and the Healthy China Initiative,striving to implement the scientific principle that“lucid waters and lush mountains are invaluable assets.”
