105 documents found, page 1 of 11
Risk assessment of a nail designer workplace
Peixoto, Ana; Silva, Augusto; Santos, Alexandre; Moreira, Nuno; Gonçalves, Maria Antónia; Brito, MarleneSem resumo disponível.
Improvements to the WATEA Tool
Peixoto, Ana; Silva, Augusto; Santos, Alexandre; Moreira, Nuno; Gonçalves, Maria Antónia; Brito, MarleneSem resumo disponível.
Comprehensive Validation of the TrAI4Nel Simulator for Nelore Artificial Insemi...
Azuaga-Filho, Heitor; Santos, Alexandre; Colaço, Bruno; Payan Carreira, RitaEffective bovine artificial insemination (AI) training requires balancing technical skill development with animal welfare considerations. Commercial simulators typically replicate Bos taurus anatomy, limiting utility in regions where Bos indicus breeds predominate. This study validates the TrAI4Nel simulator, customized for Nelore cattle AI training. Validation employed a multi-dimensional framework encompassin...
Using machine learning on V2X communications data for VRU collision prediction
Ribeiro, Bruno; Nicolau, Maria João; Santos, AlexandreIntelligent Transportation Systems (ITSs) are systems that aim to provide innovative services for road users in order to improve traffic efficiency, mobility and safety. This aspect of safety is of utmost importance for Vulnerable Road Users (VRUs), as these users are typically more exposed to dangerous situations, and their vehicles also possess poorer safety mechanisms when in comparison to regular vehicles o...
Urban traffic simulation using mobility patterns synthesized from real sensors
Gonçalves, Fábio Raul Costa; Silva, Gonçalo O.; Santos, Alexandre; Rocha, Ana Maria A. C.; Peixoto, Hugo; Durães, Dalila; Machado, José ManuelSmart cities are an ongoing research topic with multiple sub-research areas, from traffic control to optimization and even safety. However, testing the new methodologies or technologies directly in the real world is an almost impossible feat that, inclusively, can result in disaster. Thus, there is the importance of simulation. Simulation enables testing new and complex methodologies and gauging their impact in...
Towards mobility management in MEC simulation
Araújo, Paulo Jorge Nicolau; Fernández-López, Helena; Faria, Joao; Santos, AlexandreMulti-Access Edge Computing (MEC) brings cloud capabilities to the edge, allowing less powerful devices to offload tasks while, together with the effective distribution of content and resources across edge hosts, enabling ultra-low latency. With the distributed resources across the network and mobile devices constantly changing location, it is most important to correctly manage and orchestrate those resources t...
Evaluation of a collision prediction system for VRUs using V2X and machine lear...
Ribeiro, Bruno Daniel Mestre Viana; Santos, Alexandre; Nicolau, Maria JoãoThe safety factor of ITS is particularly important for VRUs, as they are typically more prone to accidents and fatalities than other road users. The implementation of safety systems for these users is challenging, especially due to their agility and hard to predict intentions. Still, using ML mechanisms on data that is collected from V2X communications, has the potential to implement such systems in an intellig...
Machine learning for VRUs accidents prediction using V2X data
Ribeiro, Bruno Daniel Mestre Viana; Nicolau, Maria João; Santos, AlexandreIntelligent Transportation Systems (ITS) are systems that consist on an complex set of technologies that are applied to road agents, aiming to provide a more efficient and safe usage of the roads. The aspect of safety is particularly important for Vulnerable Road Users (VRUs), which are entities for whose implementation of automatic safety solutions is challenging for their agility and hard to anticipate behavi...
Enhancing VRUs safety with V2P communications: an experiment with hidden pedest...
Gonçalves, Fábio Raul Costa; Ribeiro, Bruno Daniel Mestre Viana; Simões, João Henrique Vivas Santos; Gama, Óscar Sílvio Marques AlmeidaVehicular Ad hoc Networks (VANETs) are the network that enables communications between road entities, such as vehicles, Road Side Units (RSUs), or Vulnerable Road Users (VRUs). The work presented in this paper aims to provide a methodology to prevent accidents that happen to VRUs' entities, more precisely, to pedestrians. The goal of this safety application use-case is to detect and warn the involved parties of...
Agnostic middleware for VANETs: specification, implementation and testing
Gonçalves, Fábio Raul Costa; Ribeiro, Bruno Daniel Mestre Viana; Gama, Óscar Sílvio Marques Almeida; Nicolau, Maria João; Dias, Bruno; Costa, AntónioVehicular Ad hoc Networks (VANETs) are the basic support for Intelligent Transportation Systems (ITS), providing a framework for its multiple entities to communicate. The communications and services provided to the road entities are generally implemented by means of an On-Board Unit (OBU) and Road Side Unit (RSU), sharing a rather similar hardware and software architectures. These devices need to support multip...