A simple model for a set of integrate-and-fire neurons based on the weighted network is introduced. By considering the neurobiological phenomenon in brain development and the difference of the synaptic strength, we co...A simple model for a set of integrate-and-fire neurons based on the weighted network is introduced. By considering the neurobiological phenomenon in brain development and the difference of the synaptic strength, we construct weighted networks develop with link additions and followed by selective edge removal. The network exhibits the small-world and scale-free properties with high network efficiency. The model displays an avalanche activity on a power-law distribution. We investigate the effect of selective edge removal and the neuron refractory period on the self-organized criticality of the system.展开更多
MOOC, as a new means of education informatization, does impact the traditional college English curriculum settings, which needs to adapt to the development trend of online education. Through the analysis of the domest...MOOC, as a new means of education informatization, does impact the traditional college English curriculum settings, which needs to adapt to the development trend of online education. Through the analysis of the domestic and foreign literature review, it concludes that our country＇s college English curriculum should introduce more MOOCs, and make international MOOCs become one parts of their own curriculums. Students can choose any English course with their own interests. And college English curriculum teachers should improve their skills and become more specialized to adapt to the new trend of world higher education.展开更多
基金Supported by National Natural Science Foundation of China under Grant No.10675060the Doctoral Foundation of Ministry of Education of China under Grant No.2002055009
文摘A simple model for a set of integrate-and-fire neurons based on the weighted network is introduced. By considering the neurobiological phenomenon in brain development and the difference of the synaptic strength, we construct weighted networks develop with link additions and followed by selective edge removal. The network exhibits the small-world and scale-free properties with high network efficiency. The model displays an avalanche activity on a power-law distribution. We investigate the effect of selective edge removal and the neuron refractory period on the self-organized criticality of the system.
文摘MOOC, as a new means of education informatization, does impact the traditional college English curriculum settings, which needs to adapt to the development trend of online education. Through the analysis of the domestic and foreign literature review, it concludes that our country＇s college English curriculum should introduce more MOOCs, and make international MOOCs become one parts of their own curriculums. Students can choose any English course with their own interests. And college English curriculum teachers should improve their skills and become more specialized to adapt to the new trend of world higher education.
