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An investigation of distribution and variation of air ions is essential to understand the factors that affect air conductivity and aerosol formation. The concentration of negative air ions (NAIs) was measured at 16 sampling sites in Xi'an city from August 2009 to July 2010. At the same time, environmental factors were also monitored such as temperature, relative humidity, wind speed and concentration...
The objective of this study is to characterize the bubble size distribution for intermediate bubble swarm in the presence of frother so as to improve the flotation performance. Experiments were thus carried out to investigate the effect of frother on bubble size distribution by changing the frother concentration. Distilled water and Triton X-100 solutions with various concentrations were choosed as...
Bubble motion is fundamental to the performance of flotation system, but single bubble motion under flotation-related conditions is a relatively neglected research field. The objective of this study is to characterize the behaviors of single bubbles with 2 ∼ 5 millimeter in diameter in the presence of surfactant. Experiments were carried out to investigate the effect of surfactant on trajectory, shape...
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