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Currently, the research of GIS and environmental models has made great progress, but the combination of both is still a difficulty. Aiming at the integration of GIS and environment model, the paper drew some functional components from open source geographic information system, and embedded the atmosphere environment model into GIS as application program interface by hybrid programming, achieved the...
The joint simulation of Engineering and Engagement level systems could improve the quality of weapon system's effectiveness analysis due to the support of reliable weapon performance data. Since engineering systems were developed independently and often incorporate real assets in the virtual environment, heterogeneity and real-time performance are key issues that need to be considered when constructing...
Discretization of continuous-valued attributes is always one of the key problems in rough sets theory, a multiscale rough set model (MRSM) is developed that describes the discretization at multiple scales and analyzes the relation of classifications and certainty between scales. In view of the model's efficiency and effectiveness. an optimal scale can be acquired with self-organization, self-study...
This paper takes three main wetland distributing counties in Yancheng: Dongtai, Dafeng and Sheyang as study areas. With the processing of four-period (every six years from 1988 to 2006) remote sensing (RS) images, a dynamic change analysis of the Yancheng wetland types was illuminated at first. Then, according to the results of the RS images interpretation, the change prediction of the wetland types...
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