Wenqin Huang

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A control method, based on a combination of inverse system and PID controller, is proposed for the level control problem. The inverse system is derived based on the analysis and the establishment of double-hold water tank’s model. The simulation of the pseudo-linear system which is get through connecting the inverse system to the former of the(More)
Rosin, an abundant raw material from pine trees, was used as a starting material directly for the synthesis of rosin acid starch. The esterification reaction was catalyzed by lipase (Novozym 435) under mild conditions. Based on single factor experimentation, the optimal esterification conditions were obtained as follows: rosin acid/anhydrous glucose unit in(More)
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