Posture recognition is critical in modern educational and office environments for preventing musculoskeletal disorders and maintaining cognitive performance. Existing methods based on human keypoint detection typically rely on convolutional neural networks (CNNs) and single-scale features, which limit representation capacity and suffer from overfitting under small-sample conditions. To address these issues, we ...
Traditional passwords and respective cryptographic hashes are still widely used for user authentication. Breaking these hashes, to recover the original passwords, may be necessary for a variety of legitimate reasons. Hashcat, a widely used password auditing tool, is able to exploit the parallel processing power of many GPUs to accelerate the breaking of cryptographic hashes. Moreover, there are already ways of ...
This research project aims to explore the concept of social meta-network, as a way of integrating social networks, such as Facebook, LinkedIn and others, providing an integrated perspective and transversal functionalities of added value for its users. The present approach uses graph databases, implemented using Neo4j. The nodes/vertices of the graph are used to represent people; properties on nodes are used to ...
With the current technological transformation in the automotive industry, autonomous vehicles are getting closer to the Society of Automative Engineers (SAE) automation level 5. This level corresponds to the full vehicle automation, where the driving system autonomously monitors and navigates the environment. With SAE-level 5, the concept of a Shared Autonomous Vehicle (SAV) will soon become a reality and mains...
Entre 2018 e 2020 decorreram trabalhos arqueológicos na Cidade Velha, a antiga capital de Cabo Verde, que prosperou entre os séculos XVI e XVII como entreposto atlântico do comércio de escravos e base de apoio à navegação oceânica. As escavações incidiram sobre dois locais: um contexto habitacional numa das suas principais artérias, a rua da Banana, e num dos mais antigos espaços de culto do arquipélago, a igre...
The significant transformations in society characterize the intensive environment and the fast changing situations in which all organizations operate and are subject, regardless of their size. The demands of business competitiveness make human capital management therefore a challenge. This is mainly accentuated in technology companies, where software development is exclusively focused on the ability to create n...
Over the last years, human resource management (HRM) has experienced significant transformations. The focus has passed from the administrative management tasks to becoming a strategic partner of the overall organization strategy, largely with the strong support of information technologies' evolution in this field of knowledge area. Te extended use of information systems has a deep effect in the way HTM is manag...
As transformações significativas na sociedade caracterizam o ambiente intensivo e as situações de rápida mudança em que operam e a que estão sujeitas todas as organizações, independentemente da sua dimensão. As exigências da competitividade empresarial fazem com que a gestão do capital humano continue por isso a ser um desafio. Este facto é principalmente acentuado em empresas de tecnologia, onde o desenvolvime...
An oxidative clearing process for disperse dyes with hydrogen peroxide was applied, replacing a process that is usually applied, which is the reduction clearing done with sodium hydrosullphite. This is a very polluting process due to the high values of COD and conductivity obtained as a result of its application. An oxidative process is a more sustainable process, saving in water, by avoiding intermediate rinsi...