Firstly, the paper establishes a brand-extension size model and adopts the marginal analysis to analyze the optimal …-extension size model; At the same time, use analytic hierarchy process to analyze the size of brand extension and principal component … on brand extension size model based on ecological characteristics, the results show that the order of the total …

order to improve the water environment. We constructed environmental model and social economic model by computer simulation …

establish a basic model to analysis certain infrastructure project’s sustainable construction and operation. Design … case to test our model, we could conclude that the model of internal sustainable subsystem is reasonable. However, this … model is a basic model, and it need to be specific designed for the certain project due to the diversity of infrastructure …

information is interval number, we use uncertain and multiple attribute decision making method to establish site selection model … this model in site selection of distribution center of agricultural products. The results of empirical analysis show that … the model we established fully considers the randomness and uncertainty in the process of evaluation, so as to make the …