ISEP - Instituto Superior de Engenharia do Porto
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Browsing ISEP - Instituto Superior de Engenharia do Porto by Sustainable Development Goals (SDG) "08:Trabalho Digno e Crescimento Económico"
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- Engineering a Sustainable Future with EPS@ISEPPublication . Malheiro, Benedita; Guedes, Pedro; Leal Filho, Walter; Gasparetto Rebelatto, Bianca; Annelin, Alice; Boström, Gert-OlofThe challenge of engineering education is to transform engineering students into agents of innovation and well-being. In addition to solid scientific and technical knowledge, critical thinking, problem-solving and interpersonal competencies, it implies the ability to design and implement solutions supported by ethical and sustainability principles. With this goal in mind, the European Project Semester (EPS) provides a student-centred project-based learning framework. It is offered by a group of European higher education institutions, including the Instituto Superior de Engenharia do Porto (ISEP), the engineering school of the Polytechnic of Porto. Students work in teams of four to six, from different fields of study and nationalities, to design solutions to problems that affect individuals, society or the planet, taking into account the state of the art, the market and the ethical and sustainability implications of their decisions. These solutions are then implemented in a proof-of-concept prototype. Most of the projects address problems in education, the environment, food production and smart cities and have a strong educational, ethical and sustainability drive, encouraging students to develop sustainability competencies. This work analyses team papers of illustrative EPS@ISEP projects searching for evidences of the development of sustainability competencies. The proposed method maps keywords related to the sixteen United Nations Sustainable Development Goals to the contents of team papers by applying natural language processing and reusing the list of SDG keywords proposed by Auckland University. The results confirm EPS@ISEP fosters sustainability competencies in engineering undergraduates.
- Tradeoffs entre desempenho e energia em aplicações Java entre bases de dados relacionais e não relacionaisPublication . SOUSA, ROGÉRIO MOURA DE; Azevedo, Isabel de Fátima SilvaThis dissertation investigates the performance and energy consumption tradeoffs in Java applications using relational and non-relational database technologies. With the increasing complexity and volume of data, the selection of an appropriate database system has become a critical decision for developers and system architects. Traditional relational databases such as PostgreSQL are known for their reliability and efficiency in structured data and complex queries, while non-relational databases like MongoDB and Apache Cassandra provide greater flexibility and scalability for handling unstructured or large datasets. The study adopts a rigorous methodology combining a literature review and controlled experiments to analyse three core aspects: the impact of the database type on performance and energy consumption in different database operations, the benefits of query optimisation techniques such as indexing, and the role of data volume in system efficiency. Multiple test scenarios were designed and executed using tools such as Grafana k6 and Kepler to measure relevant performance and energy metrics. The results confirm that no single solution fits all cases. While relational databases perform better in consistency-heavy select operations and structured query workloads, non-relational systems offer superior scalability and responsiveness in high-throughput or large-scale data environments. Additionally, the use of optimisation strategies was shown to significantly improve both energy efficiency and performance across database types. These findings highlight the importance of aligning database technologies with application-specific requirements to achieve energy-aware and performance-optimised solutions.