ESTGL - DICCF - Artigo em revista científica, indexada ao WoS/Scopus
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Browsing ESTGL - DICCF - Artigo em revista científica, indexada ao WoS/Scopus by Author "Gama, Ricardo"
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- Stability and Optimality of Solutions to Differential Inclusions via Averaging MethodPublication . Gama, Ricardo; Smirnov, GeorgiAbstract The averaging method is one of the most used tools to study dynamical systems. With the development of the theory of differential inclusions, a respective generalization of the averaging method followed the steps outlined in the theory of differential equations. Presently, it has been successfully applied to a wide range of problems involving differential inclusions, simplifying the study of the systems under consideration. In this work, the main development trends and methods in the application of the averaging method to the study of stability and optimality of solutions to differential inclusions are surveyed. A detailed list of references is given and some examples of applications are presented.
- Tourism information platform for low-density territories: the Douro regionPublication . Vieira, Isabel; Gama, Ricardo; Fernandes, Didiana; Oliveira, Isabel; Mota, Miguel Ângelo Sousa Dias Ferreira daDispersion of touristic information is a recognised problem in low-density territories, limiting its potential for tourism development. Thus, a tourist information system (TIS) is proposed as well as a methodological model for touristic information management, to interconnect various tourism agents. The model was applied to the Portuguese Douro region as technological solutions are crucial for the promotion, and sustainable management of this territorial typology. The methodology consists of three phases. First, a survey was conducted on tourism resources focusing on the Douro municipalities, and different categories of points of interest (POI) were identified. Second, data was standardised and validated before inserting it on a purpose-built TIS. Third, a set of web services were made available to promote the development of third-party applications. This work is the foundation for establishing new dynamics to promote the emergence of new technological solutions that represent an instrument to manage, and disseminate information.