This paper discusses the algorithms for achieving global states and self-stabilizationfor communication protocols. It first describes a primary algorithm including its suitability forachieving global states and limita...This paper discusses the algorithms for achieving global states and self-stabilizationfor communication protocols. It first describes a primary algorithm including its suitability forachieving global states and limitation of self-stabilization for communication protocols, and thenpresents an improved algorithm that can be suitable to achieve global states and can be also usedto self-stabilizing communication protocols. Filially, it gives the proof of correctness and analysis ofcomplexity of the improved algorithm, and verifies its availability and efficiency by illustrating anexample protocol.展开更多
Aims and scope Journal of Systems Engineering and Electronics,keeping abreast with the development trend of science and technology worldwide,reports the latest develop-ments and achievements in both theoretical and pr...Aims and scope Journal of Systems Engineering and Electronics,keeping abreast with the development trend of science and technology worldwide,reports the latest develop-ments and achievements in both theoretical and practical aspects of systems engineering,electronicsand related research areas.展开更多
This essay studies various family-related factors that influence a child’s academic achievement in school in P.R. China. The factors are illustrated under three categories: the family’s social class and education, e...This essay studies various family-related factors that influence a child’s academic achievement in school in P.R. China. The factors are illustrated under three categories: the family’s social class and education, early home environment and family material condition. The author discusses the relevant factors by way of relating the knowledge of social environment to his own experiences as a student and then teacher in China. The essay closes with a discussion directing the public’s attention to the concern about home-related factors influencing a child’s academic achievements in school.展开更多
On 3 January 2019,the Chang’E-4 probe successfully landed in the Von Kármán crater in the South Pole-Aitken Basin on the far side of the Moon.On 4 January,the Yutu-2 rover was successfully separated from th...On 3 January 2019,the Chang’E-4 probe successfully landed in the Von Kármán crater in the South Pole-Aitken Basin on the far side of the Moon.On 4 January,the Yutu-2 rover was successfully separated from the lander and the scientific payloads were powered on to conduct scientific exploration.It was the first time that manmade probe achieved soft landing and roving on the far side of the Moon.Based on the data obtained by scientific payloads on the Chang’E-4,the research team obtained geological information such as landing area topography,structure and composition;demonstrated the existence of deep materials—mainly olivine and low-calcium pyroxene in the South Pole-Aitken Basin;achieved high-precision imaging of the layered structure of lunar subsurface in the roving area;discovered carbonaceous spheroidal meteorite residues and impact glass;preliminarily revealed the geological evolutionary history of the South Pole-Aitken Basin;for the first time,obtained information of the radiation dose of energetic particles at the lunar surface and the structure of the lunar neutral atomic energy spectrum;discovered the lunar mini-magnetosphere and contributed new knowledge of the radiation hazards at the lunar surface.This article summarizes the latest scientific achievement from the Chang’E-4 mission over the past three years.展开更多
From the viewpoint of psycholinguistics, this paper concerns how to create an optimal language learning environment in language learning, to stimulate students enthusiasm to participate in classroom activities and t...From the viewpoint of psycholinguistics, this paper concerns how to create an optimal language learning environment in language learning, to stimulate students enthusiasm to participate in classroom activities and to make language learning easier and more pleasant.展开更多
National Association for Hydrogen Energy (NAHE) was established in 2003 to facilitate the effective integration of the Russian Federation into the world hydrogen economy. The priority for the Association is to create ...National Association for Hydrogen Energy (NAHE) was established in 2003 to facilitate the effective integration of the Russian Federation into the world hydrogen economy. The priority for the Association is to create legislation and basic standards which necessary for the successful development of hydrogen energy, promote this sector to a large public and to support the development of those priority areas, where Russia has the best prospects to take a rightful place in the international division of labour (atomic hydrogen energy, fuel cells, hydrogen vehicles). Hydrogen Energy, National Association for Hydrogen Energy By now the Association has developed a draft technical regulation on security devices and systems展开更多
文摘This paper discusses the algorithms for achieving global states and self-stabilizationfor communication protocols. It first describes a primary algorithm including its suitability forachieving global states and limitation of self-stabilization for communication protocols, and thenpresents an improved algorithm that can be suitable to achieve global states and can be also usedto self-stabilizing communication protocols. Filially, it gives the proof of correctness and analysis ofcomplexity of the improved algorithm, and verifies its availability and efficiency by illustrating anexample protocol.
文摘Aims and scope Journal of Systems Engineering and Electronics,keeping abreast with the development trend of science and technology worldwide,reports the latest develop-ments and achievements in both theoretical and practical aspects of systems engineering,electronicsand related research areas.
文摘This essay studies various family-related factors that influence a child’s academic achievement in school in P.R. China. The factors are illustrated under three categories: the family’s social class and education, early home environment and family material condition. The author discusses the relevant factors by way of relating the knowledge of social environment to his own experiences as a student and then teacher in China. The essay closes with a discussion directing the public’s attention to the concern about home-related factors influencing a child’s academic achievements in school.
基金Supported by National Key Research and Development Program of China(2020YFE0202100)。
文摘On 3 January 2019,the Chang’E-4 probe successfully landed in the Von Kármán crater in the South Pole-Aitken Basin on the far side of the Moon.On 4 January,the Yutu-2 rover was successfully separated from the lander and the scientific payloads were powered on to conduct scientific exploration.It was the first time that manmade probe achieved soft landing and roving on the far side of the Moon.Based on the data obtained by scientific payloads on the Chang’E-4,the research team obtained geological information such as landing area topography,structure and composition;demonstrated the existence of deep materials—mainly olivine and low-calcium pyroxene in the South Pole-Aitken Basin;achieved high-precision imaging of the layered structure of lunar subsurface in the roving area;discovered carbonaceous spheroidal meteorite residues and impact glass;preliminarily revealed the geological evolutionary history of the South Pole-Aitken Basin;for the first time,obtained information of the radiation dose of energetic particles at the lunar surface and the structure of the lunar neutral atomic energy spectrum;discovered the lunar mini-magnetosphere and contributed new knowledge of the radiation hazards at the lunar surface.This article summarizes the latest scientific achievement from the Chang’E-4 mission over the past three years.
文摘From the viewpoint of psycholinguistics, this paper concerns how to create an optimal language learning environment in language learning, to stimulate students enthusiasm to participate in classroom activities and to make language learning easier and more pleasant.
文摘National Association for Hydrogen Energy (NAHE) was established in 2003 to facilitate the effective integration of the Russian Federation into the world hydrogen economy. The priority for the Association is to create legislation and basic standards which necessary for the successful development of hydrogen energy, promote this sector to a large public and to support the development of those priority areas, where Russia has the best prospects to take a rightful place in the international division of labour (atomic hydrogen energy, fuel cells, hydrogen vehicles). Hydrogen Energy, National Association for Hydrogen Energy By now the Association has developed a draft technical regulation on security devices and systems
