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Integrated with spatial analysis, GIS can meet all kinds of requirements from decision-making support. PostgreSQL and PostGIS provide a favorable platform and powerful database solution for geospatial data analysis, and enhance the storage of spatial data management capabilities. PostgreSQL can provide dynamic and real-time spatial query and analysis. GIS spatial query and analysis are achieved in...
Design a system development program based on open source WebGIS which is high-efficiency and low-cost. Develop shanghai urban disaster information system as an example. The core of system which uses PostgreSQL as database is MapServer. The functions of system includes Web information publish, store and manage spatial data, provide map server, appease subsequent access by Multi-user, thematic mapping,...
The dynamic inspection on plant invasion is a basis for the study of the influence of plant invasion on the carbon cycle of the ecosystem in the invaded area. This paper, with Chongming Dongtan Birds Nature Reserve as the research place, Spartina alterniflora as the invasive plant and Landsat TM and SPOT as the major data source, conducted quantitative analysis on the invasion dynamics of Spartina...
Traditional Learning Management Systems (LMS) failed in providing pervasive and personal services since lacking flexibility and adaptivity. This paper addresses the problems in existing LMSs and reviews related technologies in improving interoperability, reusability, flexibility and cost efficiency, followed by proposing a new framework design using service-Oriented architecture.
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.