Search results for " geospatial"
showing 3 items of 3 documents
The prevalence of onchocerciasis in Africa and Yemen, 2000-2018: a geospatial analysis.
2022
Abstract Background Onchocerciasis is a disease caused by infection with Onchocerca volvulus, which is transmitted to humans via the bite of several species of black fly, and is responsible for permanent blindness or vision loss, as well as severe skin disease. Predominantly endemic in parts of Africa and Yemen, preventive chemotherapy with mass drug administration of ivermectin is the primary intervention recommended for the elimination of its transmission. Methods A dataset of 18,116 geo-referenced prevalence survey datapoints was used to model annual 2000–2018 infection prevalence in Africa and Yemen. Using Bayesian model-based geostatistics, we generated spatially continuous estimates o…
GeoNET: WebGIS of a GNSS Permanent Network
2009
In Sicily, from 2005 to 2007, a research group at the Dipartimento di Rappresentazione, DIRAP (University of Palermo) has realized a Global Navigation Satellite System (GNSS) network for real time positioning (Network Real Time Kinematic –NRTK), activity founded by “Minister of Instruction, University and Scientific Research” (MIUR) as “National Interest Research Program” PRIN2005 entitled "Networks of permanent GPS stations for the survey in real time control and use of emergency". The data-base contains different kind of information both general on the network and positional. Positional information can be useful for two types of survey applications: static survey with post-processing of d…
OGC-to-W3C Services: A Wrapper-Based Solution for Geospatial Metadata Exchange
2018
When trying to compose services that are developed according to different standards, interoperability issues arise that are often faced by developing ad-hoc solutions. A typical example is represented by the composition of W3C and OGC services, which were developed more or less concurrently by independent organizations. In such a context, developing a wrapper that abstracts as much as possible the inner details and logic of a wrapped service well embraces the low-coupled nature of the general Service Oriented Computing paradigm. This paper focuses on the proper management of geospatial metadata into a W3C-based environment and is based on the development of a wrapper that exposes OGC functi…