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Economic-Mathematical Method to Determine the Optimum Production in Underground Coal MineShaowen Zhang Xiangyi Li Zhongxui Li Guangcheng Wang Resources Engineering School, UST Beijing, Beijing 100083, China摘 要:<正> A method to determine optimum production is presented. First, based on analysis of various geological, technological and economic......
Function of grinding fly ash in production of aluminum foam WANG Yong(王 永), YAO Guang-chun(姚广春), LI Bing(李 兵) School of Materials and Metallurgy, Northeastern University, Shenyang...-foaming process for production of metallic foams [J]. Hot Working Technology, 2004, 12: 59-63. [5] BANHART J. Manufacture, Characterization and application of cellular metals and metal foams [J]. Progress......
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TiO2 exhibits visible light H2 production due to their absorption in the visible light region. The photocurrent and H2 production amount display strong dependence on the light absorption range of Cdots. The blue-emissive Cdots endow the weak H2 production rate due to its weak absorption in the visible light. The enhanced photocatalytic activities are mainly contributed to the strong light......
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