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This study investigated the optimization of process parameters in terms of 2,4-dichlorophenoxyacetic acid (2,4-D) removal from raw water by using magnetic ion exchange (MIEX) resin. Response surface methodology was applied to find out the major parameters influencing 2,4-D removal efficiency. Moreover, the optimal values of these parameters and the interactions between them were investigated (pH,...
After summarizing the characters of optimal growth portfolio, we derive the futures pricing model in a concrete discrete-time incomplete market using the optimal growth portfolio method. Then an empirical test for the model is done. The result shows, the prices predicted by the new model can fit the actual prices well, and compared with the conventional futures pricing model, the single-factor model...
A new model is presented to reveal investor heterogeneous beliefs impact on corporate financial decision, using demand-supply curve in the framework of the sequence of events. Our model theoretically interprets the phenomenon that firms issue equity in high stock price, inconsistent with Trade-off Hypothesis and Pecking order Hypothesis. This paper also tests theoretical predictions sampling A-shares...
The Four dimension bio-reactor at nitrogen removal (4DBNR) is consisted of series of the airlift alternant loop complex bio-filters(AALCF), with baffled flow along the longitudinal direction. Four dimension means three dimension flow controlled by the time changing aerobic operating. The aerobic and anaerobic circumstances formed along the liquid flux for nitrification /denitrification with intermittent...
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