53 documents found, page 1 of 6
Guiding the implementation of data privacy with microservices
Antunes, P.; Guimarães, N.Privacy by design is nowadays recognized as essential in bringing data privacy into software systems. However, developers still face many challenges in reconciling privacy and software requirements and implementing privacy protections in software systems. One emerging trend is the adoption of microservices architectures—they bring in some qualities that can benefit privacy by design. The main goal of this study...
Process and structural health monitoring of a composite overwrapped pressure ve...
Rocha, Helena Cristina Lopes; Antunes, P.; Lafont, U.; Nunes, J. P.Replacements for fossil fuels in the transportation industry are being explored, to restrain global warming. Hydrogen-powered fuel cell systems, with Composite Overwrapped Pressure Vessels (COPVs) for hydrogen storage, are regarded as a viable alternative energy solution. COPVs, which consist of a fibre reinforced polymer composite overwrap wound around a liner, are the most weight efficient pressure vessel sol...
Wheel-rail contact models in the presence of switches and crossings
Magalhães, H.; Marques, Filipe; Antunes, P.; Flores, Paulo; Pombo, J.; Ambrósio, J.; Qazi, A.; Sebes, M.; Yin, H.; Bezin, Y.The development and implementation of wheel-rail contact models in multibody codes are two active research topics, aiming at improving the accuracy of numerical results and computational efficiency of the dynamics analysis. However, the realism of numerical results is challenged when considering switches and crossings (S&C), where the most adverse wheel-rail contact conditions occur. This paper presents a bench...
Participatory selection of indicators for water resources planning and strategi...
Santos Coelho, Rosa; Lopes, R.; Coelho, Pedro; Ramos, T.B.; Antunes, P.International agencies, non-governmental organisations, technical experts, and academia have strongly recommended that water resources planning and strategic environmental assessment (SEA) processes should be supported by indicators that can be used to characterise, assess and monitor water resources overtime against management objectives. Moreover, indicators are used to measure the performance of actions impl...
Perceptions of sexual abuse in sport: A qualitative study in the Portuguese spo...
Alexandre, J.; Castro, C.; Gama, M.; Antunes, P.Child sexual abuse is a complex issue that can take place in different contexts. Sports settings have specific features which pose increased risk for sexual abuse to occur. Recently, a country-specific roadmap for effective child safeguarding in sport was launched. Considering the need to achieve a comprehensive picture of violence against children in sports settings in Portugal, we analyzed the perceptions of ...
Wheel-rail contact models in the presence of switches and crossings
Magalhães, H.; Marques, F.; Antunes, P.; Flores, P.; Pombo, João; Ambrósio, J.; Qazi, A.; Sebes, M.; Yin, H.; Bezin, Y.The development and implementation of wheel-rail contact models in multibody codes are two active research topics, aiming at improving the accuracy of numerical results and computational efficiency of the dynamics analysis. However, the realism of numerical results is challenged when considering switches and crossings (S&C), where the most adverse wheel-rail contact conditions occur. This paper presents a bench...
3D interfacial debonding during microbond testing: advantages of local strain r...
Dsouza, R.; Antunes, P.; Kakkonen, M.; Jokinen, J.; Sarlin, E.; Kallio, P.; Kanerva, M.The microbond (MB) test is the most widely adopted micromechanical test to characterize fibre matrix interfaces but typically lacks reliability and output for determining multi-parameter interface models. In the current research, the MB test is enhanced by incorporating Fibre Bragg Grating (FBG) sensors for local fibre strain monitoring. Strain-force data is used to analyse and validate the type and paramter va...
Experimental and numerical dataset of Microbond test using optical fibres for s...
Dsouza, R.; Antunes, P.; Kakkonen, M.; Jokinen, J.; Sarlin, E.; Kallio, P.; Kanerva, M.This data article provides useful information often required for numerical modeling of the so-called microbond tests. It includes the experimental and simulation data of the microbond testing using Fibre Bragg Grating (FBG) fibres for optical strains. Microbond testing was performed on five different droplets of varying embedded length and diameter to collect the data. Finite element simulation was carried out ...
Method supporting the adoption of visual stories in judicial systems
Leite, F.; Antunes, P.; Guimarães, N.; Pino, J. A.The submission of statements of claim is a critical procedure in civil judicial systems, where plain-tiffs plead the court to resolve conflicts with other parties. Under the assumption that plaintiffs seek to represent themselves, we are particularly concerned with the quality of the information ex-change with the court. To address this problem, we develop a method for constructing statements of claim that uses...
A co-simulation approach to the wheel–rail contact with flexible railway track
Antunes, P.; Magalhães, H.; Ambrósio, J.; Pombo, João; Costa, J.The standard approach to railway vehicle dynamic analysis includes running the vehicle multibody models in rigid railway tracks. The wheel–rail contact, independently of the rolling contact model used, is either handled online or via lookup tables. This traditional approach disregards the coupling effects between the railway vehicle dynamics and the railway track flexibility. In this work the assumption of rigi...