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Sobre

Sobre

João Bastos é Professor Adjunto do Departamento de Engenharia Mecânica do ISEP - Politécnico do Porto. É licenciado em Engenharia Mecânica pela FEUP, é Mestre em Engenharia Electrotécnica e Computadores no ramo de Informática Industrial na FEUP, e é aluno de Doutoramento do Programa Doutoral em Engenharia Industrial e Gestão - PRODEIG na FEUP. As suas áreas de interesse são: Gestão de Redes de Fornecimento; Planeamento Distribuído; Optimização de sistemas produtivos. É investigador do Instituto Nacional de Sistemas e Computadores do Porto - INESC TEC Laboratório Associado e participa em vários projectos de investigação. Participa e publica em conferências internacionais e nacionais bem como em revistas.

Tópicos
de interesse
Detalhes

Detalhes

003
Publicações

2022

A Novel Discrete Particle Swarm Optimization Algorithm for the Travelling Salesman Problems

Autores
Sequeiros, JA; Silva, R; Santos, AS; Bastos, J; Varela, MLR; Madureira, AM;

Publicação
INNOVATIONS IN INDUSTRIAL ENGINEERING

Abstract
There are Optimization Problems that are too complex to be solved efficiently by deterministic methods. For these problems, where deterministic methods have proven to be inefficient, if not completely unusable, it is common to use approximate methods, that is, optimization methods that solve the problems quickly, regardless of their size or complexity, even if they do not guarantee optimal solutions. In other words, methods that find “acceptable” solutions, efficiently. One particular type of approximate method, which is particularly effective in complex problems, are metaheuristics. Particle Swarm Optimization is a population-based metaheuristic, which has been particularly successful. In order to broaden the application and overcome the limitation of Particle Swarm Optimization, a discrete version of the metaheuristics is proposed. The Discrete Particle Swarm Optimization, DPSO, will change the PSO algorithm so it can be applied to discrete optimization problems. This alteration will focus on the velocity update equation. The DPSO was tested in an instance of the Traveling Salesman Problem, att48, 48 points problems proposed by Padberg and Rinaldi, which showed some promising results. © 2022, The Author(s), under exclusive license to Springer Nature Switzerland AG.

2022

A Tool for Air Cargo Planning and Distribution

Autores
Costa, D; Santos, AS; Bastos, JA; Madureira, AM; Brito, MF;

Publicação
INNOVATIONS IN BIO-INSPIRED COMPUTING AND APPLICATIONS, IBICA 2021

Abstract
In this paper, a decision support application, for the air cargo planning and distribution, is proposed. The freight forwarding sector has been working to be assertive and efficient in responding to the market through an efficient approach to planning and allocation problems. The main goal is to minimize costs and improve performance. A real air cargo distribution problem for a freight forwarder was addressed. This project emerged from the need to efficiently plan and minimize costs for the distribution of thousands of m(3) (cubic meters) of air cargo, while considering the market restrictions, such as aircraft availability and transportation fees. Through the GRG algorithm adaptation to the real problem, it was possible to respond to the main goal of this paper. The development of an easy-to-use application ensures a quick response in the air distribution planning, focusing on cost reduction in transportation. With the application development it is possible to obtain real earnings with immediate effect.

2021

Framework for a risk assessment model to apply in Virtual / Collaborative Enterprises

Autores
Avila, P; Mota, A; Bastos, J; Patricio, L; Pires, A; Castro, H; Cruz Cunha, MM; Varela, L;

Publicação
INTERNATIONAL CONFERENCE ON ENTERPRISE INFORMATION SYSTEMS / INTERNATIONAL CONFERENCE ON PROJECT MANAGEMENT / INTERNATIONAL CONFERENCE ON HEALTH AND SOCIAL CARE INFORMATION SYSTEMS AND TECHNOLOGIES 2020 (CENTERIS/PROJMAN/HCIST 2020)

Abstract
Risk assessment is a theme of large spectrum applied in different fields. In the context of Virtual / Collaborative Enterprises there are several risks whose assessment should be aware to avoid undesirable consequences either for entire networked or for a partner in particular. The objective of this work is centered on the creation of a framework / guidelines to serve as a basis for the creation of a better risk assessment model for Virtual / Collaborative Enterprises. This work analyzed the few models available in the literature and identified some gaps that were used to purpose complementary guidelines for the design and / or improve the future risk assessment models. The pointed guidelines covered three important topics: risk factors; assessment methods; and the impact in different life cycle phases of a Virtual / Collaborative Enterprise. Considering the results of the work it is our conviction that there is space to improve the research in this field and a more robust and flexible risk assessment model should be developed. (C) 2021 The Authors. Published by Elsevier B.V.

2021

Open Science Laboratory for Manufacturing: An education tool to contribute to sustainability

Autores
Castro, H; Pinto, N; Pereira, F; Ferreira, L; Avila, P; Putnik, G; Felgueiras, MC; Bastos, J; Cunha, M;

Publicação
TEEM'21: NINTH INTERNATIONAL CONFERENCE ON TECHNOLOGICAL ECOSYSTEMS FOR ENHANCING MULTICULTURALITY

Abstract
This paper presents a Cyber Physical System (CPS) laboratory based on Open Design, called Open Science Laboratory for Manufacturing (OSLab4Man), with educational and research purpose and the potential contribute and (direct and indirect) effects regarding the 17 Sustainable Development Goals (SDGs). A short introduction describing the 17 SDG, the education for sustainability role, and the relevance of the framed CPS. A literature review of CPS laboratories that are addressed to sustainability is presented. The OSLab4Man is describe in the educational purpose lens. Then, the contribute of the OSLab4Man as an education tool for sustainability regarding the 17 SDGs is reflected. Finally, the conclusions of this work and future works are highlighted. © 2021 ACM.

2021

Lean Practices Adoption in the Portuguese Industry

Autores
Martins, D; Fonseca, L; Avila, P; Bastos, J;

Publicação
JOURNAL OF INDUSTRIAL ENGINEERING AND MANAGEMENT-JIEM

Abstract
Purpose: The study purpose was to analyse the excellence and operational efficiency of Portuguese industrial companies through the measurement of lean practices implementation. Additionally, it intended to propose a new model to assess the lean production system. Design/methodology/approach: The research presents an in-depth lean literature review that served as a basis for the creation of a questionnaire. The survey was addressed to Portuguese industrial companies to obtain data about their lean implementation success. Collected data were analysed, resorting descriptive and exploratory statistics. A principal component analysis was applied to reduce the amount of data and define a new model that characterizes the lean practices adoption level. Some Chi-square tests were used to assess the independence of some variables. Findings: The results indicate that a significant percentage of organizations use lean practices within their activity. Concerning the lean implementation maturity, a plus side revealed by the study concerns the adoption of the teamwork, internal information shared principles, increase of process capability to produce conforming products, and reduction in set up times. On the other hand, responsibilities decentralization, more employees acting as team leaders, implementation of employees' suggestions, and interconnection with suppliers, are some of the principles that need to be given greater attention by the Portuguese industrial organizations. The key contribution consists of a new model for lean determinants based on three dimensions: work method, productive process elements, and work efficiency. Originality/value: The present research provides a new Lean determinants model that allows understanding the importance of the operational efficiency provided by a mature lean production system, being the key to the competitiveness in the global business market.

Teses
supervisionadas

2021

DESENVOLVIMENTO DE UM MODELO DE REFERÊNCIA DE BOAS PRÁTICAS SUSTENTÁVEIS PARA O SETOR DA ATIVIDADE DE COLISÃO AUTOMÓVEL

Autor
RICARDO DANIEL DOS SANTOS PINTO

Instituição
IPP-ISEP

2021

DESENVOLVIMENTO E INDUSTRIALIZAÇÃO DE UM MARCO PARA CONTENTORES ENTERRADOS DE RESÍDUOS

Autor
ANTÓNIO JORGE PINTO COSTA VASQUES

Instituição
IPP-ISEP

2020

Ferramenta de Apoio ao Escalonamento da Produção

Autor
PAULA CRISTINA DOS SANTOS OLIVEIRA REIS

Instituição
IPP-ISEP

2020

DESENVOLVIMENTO DE UMA FERRAMENTA DE SUPORTE À ORÇAMENTAÇÃO NUMA EMPRESA DE AVAC

Autor
ANA CAROLINA CAMELO NETO

Instituição
IPP-ISEP

2019

MODELO DE ANÁLISE DE INDICADORES DE DESEMPENHO PARA A MELHORIA CONTINUA

Autor
PEDRO MIGUEL REITOR DIAS

Instituição
IPP-ISEP