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Collaborative Optimization (CO) strategy is applied to aseismatic design of reinforcement concrete bridge. The design procedure is regarded as a whole system. The procedure is decomposed into a double-level nonlinear optimization problem. Besides system level, disciplines level is subdivided into three disciplines in term of stress states of the bridge: statics discipline, linear dynamics discipline,...
Farm land waste water is one of the main sources of nonpoint pollution, and BMPs is an effective technology. The characteristics of farm land wastewater are described in this paper. In Poyang watershed a series of Best Management practices (BMPs) are designed, including grass buffer strip, ditch, fishpond, facultative pond and constructed wetland. The results show that BMPs play a part for SS, BOD5,...
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