The paper introduces babbling and its general features, summarizing the studies on it in the past several decades.Though it is widely believed that babbling is a natural process of maturation and share some universal ...The paper introduces babbling and its general features, summarizing the studies on it in the past several decades.Though it is widely believed that babbling is a natural process of maturation and share some universal features, the more recent researches show babbling is influenced by the ambient linguistic environment and shows a close match with the characteristics of the first language. Therefore, babbling has a language-specific feature even in the early stage.展开更多
According to the structure and the operating parameters of tundish at some plant,the inclusion removal in tundish with babbling curtain and electromagnetic field was simulated by numerical calculation method,and based...According to the structure and the operating parameters of tundish at some plant,the inclusion removal in tundish with babbling curtain and electromagnetic field was simulated by numerical calculation method,and based on the optimization,the actual-service test were put into effect.The results show that:compared with the bubble-gap soft filter of multiple gas curtains,the composite filter with traveling wave magnetic field and bubbling curtains in the tundish can further improve the inclusion removal rate.A large number of small particle inclusions are removed primarily by bubble flotation through the assisting of electromagnetic field.While the removal rate of inclusions which diameters are less than 50μm is increased by 48%,especially the removal rate of inclusions which diameters are less than 20μm is increased by 76%.The efficacy of the composite filter of traveling wave magnetic field and bubbling curtain is obviously.展开更多
文摘The paper introduces babbling and its general features, summarizing the studies on it in the past several decades.Though it is widely believed that babbling is a natural process of maturation and share some universal features, the more recent researches show babbling is influenced by the ambient linguistic environment and shows a close match with the characteristics of the first language. Therefore, babbling has a language-specific feature even in the early stage.
基金Item Sponsored by National Basic Research Program 973[2012CB722702]Key Program of Natural Science of Hubei Province of China[2011CDA053]Educational Commission of Hubei Province of China[CXY2009B005]
文摘According to the structure and the operating parameters of tundish at some plant,the inclusion removal in tundish with babbling curtain and electromagnetic field was simulated by numerical calculation method,and based on the optimization,the actual-service test were put into effect.The results show that:compared with the bubble-gap soft filter of multiple gas curtains,the composite filter with traveling wave magnetic field and bubbling curtains in the tundish can further improve the inclusion removal rate.A large number of small particle inclusions are removed primarily by bubble flotation through the assisting of electromagnetic field.While the removal rate of inclusions which diameters are less than 50μm is increased by 48%,especially the removal rate of inclusions which diameters are less than 20μm is increased by 76%.The efficacy of the composite filter of traveling wave magnetic field and bubbling curtain is obviously.
