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粉煤灰颗粒在水介质中的分选机理的研究 被引量:3
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作者 边炳鑫 《黑龙江矿业学院学报》 2000年第1期7-10,共4页
通过对粉煤灰中各种颗粒在水介质中的受力情况和沉浮规律的分析,给出了沉浮速度计算公式。由磁珠在磁选机中受力情况分析,得出了从磁选机中分离出磁珠所需磁力的计算公式.
关键词 粉煤灰 微珠 水介质 沉浮速度 比磁力 分选机理
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究竟谁中了“埋伏”?——影视书危机解读
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作者 胡礼慧 《出版参考》 2004年第25期27-27,共1页
关键词 影视剧 营销策划 《十面埋伏》 图书 危机 《笑傲江湖》 《神雕侠侣》 文化内涵 运作模式 沉浮速度
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Hydrostatic settling velocity of sediments
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作者 叶培伦 俞亚南 《Journal of Zhejiang University Science》 CSCD 2002年第1期19-23,共5页
The settling of sediments is an accelerative process in which the concentration of the main sediments zone will heavily influence settling velocity,but the explicit relationship between the concentration and settling ... The settling of sediments is an accelerative process in which the concentration of the main sediments zone will heavily influence settling velocity,but the explicit relationship between the concentration and settling velocity has not been reported in literature. Here a theoretical function was built for the time dependent concentration and time dependent settling velocity of sediments;then the entire settling process reflecting concentration was shown on the basis of sediments instant\|settlement theory and mathematical method. Agreement of computed results and experimental data was found. Several governing parameters,including particle size,particle density,initial suspended sediments concentration and suspension height,were discussed with a series of calculated velocity curves. The research indicated that ⑴ the presented concentration\|velocity time relationship is rational,⑵ settling process of the sediments group with variation of concentration consists of acceleration stage,uniform motion stage and deceleration stage,and ⑶ particle size,particle density and initial suspended sediments concentration have more influence on the settling velocity than the suspension height and water temperature. 展开更多
关键词 hydrostatic settling velocity suspension concentration settling in group SEDIMENTS
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