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In this paper, key methods and prototype that integrate OGC Web Service (OWS) into grid environment is analysed and we describe a resource-oriented architectural approach. The concrete is a progress in which a model extracting stateful resource under WSRF (Web Service Resource Framework) is provided. This paper presents OWS2GRID, a framework that extends(More)
Current database with numerous users requires access control. It is also needed in spatial database systems that keep both spatial attribute and non-spatial attribute safe. The query rewriting technology in spatial database is discussed in this paper. First the operations for merging authorization policies are discussed. By classifying the subjects and(More)
OBJECTIVE To investigate the prospective association of fibroblast growth factor 21 (FGF-21) with NAFLD development in a 5-year prospective study involving a population-based cohort comprising 352 Chinese subjects. METHODS The clinical data of subjects were recorded, serum FGF-21 levels at baseline and follow-up were measured using an enzyme-linked(More)
Grid Geospatial Information Service (Grid GIS) system aims to study and develop grid-based uniform spatial information access and analysis system. Data resources of Grid GIS include not only original and traditional GIS data but remotely sensed data. Analysis function is made up of not only single spatial information access but complex and quick data(More)
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