2013美赛ICM优秀论文`.pdfVIP

Team Control Number For office use only For office use only T1 ________________ 18492 F1 ________________ T2 ________________ F2 ________________ T3 ________________ F3 ________________ Problem Chosen T4 ________________ F4 ________________ C Two-tier Communication Network Model of Global Health Summary Modeling and predicting the Earths health condition is an intricate problem, which should embrace the complexity of Earths interrelated systems, and take into the consideration of global impacts on local conditions and vice versa. With the assumption that the population and human civilization act as the dominating driver of environment degradation, we build a novel people-oriented two-tier communication network model (TCNM) to consider the environment degradation. Firstly, we define the elements of the global network. The nodes are the abstraction of geographic division, whose area share analogous trait regardless of the nuance of traits within the area. Besides, the links are the geographic adjacent relation between two nodes. Here we introduce the concepts of signal channels and signals derived from communications network to represent the links and impacts transmitted between nodes respectively, so as to make it possible to consider all the impacts as a whole in the network. Secondly, we study the no