Navegando por Assunto "Geometria e modelagem computacional"

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Analisando o Backup-as-a-Service como uma estratégia de recuperação de desastres
(2021-06-02) Queiroz, Ewerton Cleyton Silva de; Andrade, Ermeson Carneiro de; Mendonça Neto, Júlio Rodrigues de; http://lattes.cnpq.br/7849727159222731; http://lattes.cnpq.br/2466077615273972; http://lattes.cnpq.br/1234353605805269
In modern environments, failures in information and communication technology (ICT) systems can have several consequences for a business, like data and revenue loss and customers dissatisfaction. Disaster recovery (DR) solutions, as BackupasaService (BaaS), has been adopted by companies as a way to avoid these problems and assure business continuity. Nevertheless, there are plenty of variables to consider during the adoption of a DR solution. Then, in this work, we present an integrated approach using experiments and models to evaluate a BaaS environment designed for DR. In our analysis, we consider relevant DR metrics like availability, downtime, RTO (Recovery Time Objective), and RPO (Recovery Point Objective). The results demonstrate that once BaaS is applied, the environment availability can vary according to the amount of data needed to be backed up or restored. Furthermore, sensitivity analysis indicates that the time needed to recover the data center and the backup interval are the most important parameter values for metrics like RTO and RPO. The proposed approach can help companies or individuals involved in the decisionmaking process for purchasing a DR solution.
Passeio virtual ao primeiro observatório das américas: proposta de ensino de astronomia
(2022-06-21) Galindo, Juliany da Rocha Cunha; Lira, Rafael Pereira de; http://lattes.cnpq.br/4601784121439123; http://lattes.cnpq.br/5552104733561999
Presents content for the teaching and dissemination of Astronomy and related Sciences, making it possible to visit the first observatory in the Americas. This type of visitation is carried out in a virtual way, allowing anyone to know how the observatory works, which was built on the roof of a Portuguese house. For this purpose, a virtual tour was created that allows to know the observation rooms that the astronomer Jorge Marcgrave designed and that carried out his observations of the stars in the sky. The construction of the virtual tour was carried out from documents with historical records of the observatory of the German Jorge Marcgrave in 1639. It focused on updating the visualization format of the virtual observatory, which allowed for a more realistic system and with higher quality of graphic resources. For the making of this project, Blender was used (3D modeling tool, free version) for the animation. The virtual tour adds value to educational institutions in a unique way, attracting students from different nations and institutions (Museums, Governmental Agencies, NGOs). With the virtual environment it was possible to acquire knowledge about important historical facts for our society, mainly in the field of Astronomy.