2023
Autores
Carvalho, J; de Sousa, JP; Macário, R;
Publicação
Transportation Research Procedia
Abstract
Urban mobility systems often surpass the political-administrative boundaries of local governments. Commuting dynamics are a key variable to establish the functional scope of an urban area. Yet, most sustainable urban mobility plans are being developed by and for municipalities. There are still few experiences at the metropolitan scale. There are even fewer studies about these experiences. Our work addrebes this gap. Using purposeful sampling and qualitative content analysis, we examined documents from supranational organizations and metropolitan cases. We argue that a better understanding of the collaborative tools being promoted for and used by metropolitan areas can be used to better inform policy transfer and learning in transportation. We conclude with considerations for future research on the topic. © 2023 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0)
2023
Autores
Monge Soares, R; Nabais, M; Pereiro, TD; Dias, R; Hipólito, J; Fonte, J; Gonçalves Seco, L; Menéndez-Marsh, F; Neves, A;
Publicação
Estudos do Quaternário / Quaternary Studies
Abstract
2023
Autores
Santos, G; Pinto, T; Ramos, C; Corchado, JM;
Publicação
FRONTIERS IN ENERGY RESEARCH
Abstract
[No abstract available]
2023
Autores
Pereira, T; Gameiro, T; Viegas, C; Santos, V; Ferreira, N;
Publicação
SENSORS
Abstract
This paper presents the integration of multimodal sensor systems for an autonomous forestry machine. The utilized technology is housed in a single enclosure which consolidates a set of components responsible for executing machine control actions and comprehending its behavior in various scenarios. This sensor box, named Sentry, will subsequently be connected to a forestry machine from MDB, model LV600 PRO. The article outlines previous work in this field and then details the integration and operation of the equipment, integrated into the forest machine, providing descriptions of the adopted architecture at both the hardware and software levels. The gathered data enables the assessment of the forestry machine's orientation and position based on the information collected by the sensors. Finally, practical experiments are presented to demonstrate the system's behavior and to analyze the methods to be employed for autonomous navigation, thereby assessing the performance of the established architecture. The novel aspects of this work include the physical and digital integration of a multimodal sensor system on a forestry machine, its use in a real case scenario, namely, forest vegetation removal, and the strategies adopted to improve the machine localization and navigation performance on unstructured environments.
2023
Autores
Mourão, RL; Gouveia, C; Sampaio, G; Retorta, F; Merckx, C; Benothman, F; Águas, A; Boto, P; Silva, CD; Milzer, G; Marzano, G; Dumont, C; Crucifix, P; Kaffash, M; Heylen, E;
Publicação
IET Conference Proceedings
Abstract
The EUniversal project, funded by the European Union, aims to establish a universal approach to the utilization of flexibility by Distribution System Operators (DSOs) and their engagement with new flexibility markets. To achieve this objective, the project team has focused on developing the Universal Market Enabling Interface (UMEI) concept. This paper presents an overview of the process of adapting grid core systems to interact with different market platforms and agents, which is a key aspect of the real-world demonstration set to take place in Portugal. © The Institution of Engineering and Technology 2023.
2023
Autores
Homayouni, SM; Fontes, DBMM; Fontes, FACC;
Publicação
PROCEEDINGS OF THE 2023 GENETIC AND EVOLUTIONARY COMPUTATION CONFERENCE COMPANION, GECCO 2023 COMPANION
Abstract
This paper addresses the joint scheduling of production operations, transport tasks, and storage/retrieval activities in flexible job shop systems where the production operations and transport tasks can be done by one of the several resources available. Jobs need to be retrieved from storage and delivered to a load/unload area, from there, they are transported to and between the machines where their operations are processed on. Once all operations of a job are processed, the job is taken back to the load/unload area and then returned to the storage cell. Therefore, the problem under study requires, concurrently, solving job routing, machine scheduling, transport allocation, vehicle scheduling, and shuttle schedule. To this end, we propose a hybrid biased random-key genetic algorithm (BRKGA) in which the mutation operator resorts to six local search heuristics. The computational experiments conducted on a set of benchmark instances show the effectiveness of the proposed mutation operator.
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