Brazilian Journal of Production Engineering
Journal created at the end of 2015 with the UFES Publishing and Publications System. Its creation was due to a demand from the Research Center in Production Systems Management (NPGSP), with the aim of providing scientific and fast access to the academic community in the area of ​​Production Engineering in a transversal and interdisciplinary way. ISSN: 2447-5580 Year of Fundation: 2015 Frequency: Quarterly Responsible Editor: Rodrigo Randow de Freitas Institutional E-mail: revista.bjpe@ufes.br / revistabjpe@gmail.com Indexing: Sumários / Livre / Index Copernicus / ResearchBIB / EZ3 / Road / Base / WorldCat / Internet Archive / Redib / Oasisbr / Rootindexing / Scilit / Diadorim / Latindex / Dialnet / Dimensions License: CC BY 4.0 DEED Atribuição 4.0 Internacional
Universidade Federal do Espírito Santo - UFES
All works published in the Brazilian Journal of Production Engineering (BJPE) are licensed under Creative Commons Attribution 4.0 International (CC BY 4.0). This means that: Anyone can copy, distribute, display, adapt, remix, and even commercially use the content published in the journal; Provided that due credit is given to the authors and to BJPE as the original source; No additional permission is required for reuse, as long as the license terms are respected. This policy complies with the principles of open access, promoting the broad dissemination of scientific knowledge. 🔗 Click here to access the full license
Turnover in electromechanical assembly projects: applying Machine Learning to people management
This study investigated the factors influencing employee turnover in electromechanical assembly projects, focusing on the application of statistical techniques and machine learning to support people management. The research used a dataset of 7,333 terminations that occurred between January 2023 and July 2025 in a Brazilian company from the sector, covering individual, organizational, and work-related variables. After preprocessing and exploratory data analysis, three classification models were applied: binary logistic regression (with stepwise selection), decision tree, and Random Forest (with grid search calibration). The results showed that factors such as percentage of leave days, tenure, project type, and state of residence had greater relevance for position replacement. The Random Forest model achieved the best predictive performance, with an AUC-ROC of 0.878 and a Gini coefficient of 0.756, while logistic regression stood out for the interpretability of its coefficients. The findings indicate that integrating statistical methods and machine learning contributes to anticipating turnover scenarios, supporting more effective retention and allocation strategies in human resources management for industrial projects.
Copyright (c) 2025 Passos, G. F. R., & Silva, J. dos S. https://creativecommons.org/licenses/by/4.0
Sustainable agricultural practice and environmental development of Goiás
Considering the strategic role of the state of Goiás in the Brazilian economy and its impact on environmental development, this research assesses agricultural sustainability in the state by examining the formation of clusters. Using the hierarchical clustering methodology, municipalities were grouped according to the following variables: legal reserve area, permanent preservation, water deficit, pasture conditions, organic production, and sustainable agricultural practices. The application of the Random Forest algorithm identified sustainable farming practices as the most impactful variable in differentiating the groups. The results indicate that only 12% of municipalities in Goiás have high rates of rural properties adopting sustainable agricultural practices, with family farming being a determining factor for this adherence. Regional disparities show that while some areas, such as Catalão, Jataí, and Rio Verde, exhibit greater integration with sustainable production chains, other regions face structural barriers that hinder the adoption of these practices. Considering these findings, the research underscores the importance of targeted public policies, such as PRONAF, CAF, and incentive programs, in integrating practices like family farming, which can amplify the impact of sustainable practices in the state. The implementation of strategies that incorporate conventional management with sustainable techniques is crucial to enhancing agricultural sustainability and promoting a balance between economic development and environmental preservation.
Copyright (c) 2025 Barbosa, D. P., Salustiano, S. F. M., Borges, N. R., Silva, J. S., & Ouro-Salim, O. https://creativecommons.org/licenses/by/4.0
Work Helper: mobile application based on probabilistic model for assessing the risk of occupational low back pain
The prevalence of musculoskeletal disorders, particularly occupational low back pain, represents a persistent challenge to public health and industrial productivity. This study aimed to develop a mobile application based on a probabilistic model for assessing the risk of occupational low back pain. Development followed the agile Scrum methodology, applying principles of service-oriented software engineering, with iterative cycles of implementation and testing on both the frontend and backend. To calculate the risk of low back pain, the probabilistic model proposed by Santos and Monteiro (2020), derived from multiple logistic regression with 84 workers, was adopted. During the implementation phase, the application, called Work Helper, demonstrated the ability to calculate ergonomic risk levels and generate personalized action plans for mitigation. The information is presented in interactive reports, including risk distribution by sector, key identified factors, and prioritized recommendations, providing immediate support for decision-making and continuous monitoring of occupational health. This performance demonstrates the feasibility of integrating probabilistic models into a mobile application, offering a replicable approach that contributes to the prevention of occupational low back pain in various work environments.
Copyright (c) 2025 Santos, J. W. dos, Santos, P. V. S., & Carvalho, G. L. R. de. https://creativecommons.org/licenses/by/4.0
Adaptation of the Last Planner System methodology for the planning and control of industrial engineering projects: a case study
Context. The Last Planner System (LPS), originally developed for construction, has proved effective in reducing waste and increasing efficiency in project planning and control. This study examined the adaptation of LPS to industrial engineering projects. Objective. To assess LPS’s contribution to efficiency, productivity, and resource management in an engineering context. Method. Case study with two-time windows: February–April 2024 and April–July 2024. LPS routines were implemented, including look ahead meetings, and indicators such as Percentage of Package Completed (PPC) and document advancement across two baselines were monitored. Results. PPC fell within ranges considered acceptable for construction, indicating good performance of the adaptation during the engineering phase. Look ahead meetings brought forward 6 documents in baseline 1 and 36 in baseline 2, helping to reduce schedule deviations. Conclusion. Adapting LPS to the industrial engineering context proved promising. Ongoing adjustments and close monitoring are reinforced as essential to maximise the performance of future projects.
Copyright (c) 2025 Trajano, L. T. M., César, C. G., & Nunes, F. A. de S. F. https://creativecommons.org/licenses/by/4.0
Application of layout redefinition and computational simulation in a manufacturing environment
The physical layout of an industrial plant is a determining factor for the efficiency of production processes, directly impacting productivity, operating costs, and operational variability. This article presents a layout optimization study using layout redefinition and computer simulation, applied to a garment manufacturing plant located in the gateway to the Bahia backlands. The methodology involved analyzing the current situation, mapping material flows, developing a proposed simulation model, and developing a layout alternative. Tecnomatix Plant Simulation software was used to evaluate the proposal, enabling modeling of the production flow and quantification of the gains obtained. The results indicated reduced variability in processing times, reduced lead time, and significant improvements in organization and operational comfort. The combined application of layout redefinition and computer simulation proved effective in identifying bottlenecks and streamlining production spaces, contributing to increased shop floor efficiency in the production flow under analysis. The study reinforces the importance of integrating classical production engineering methods with computer decision-making technologies.
Copyright (c) 2025 Santos, R. A. dos, Santos, A. de M., Barreto, Óliver S. C., Damm, D. D., Araujo, A. C. B. de, & Almeida, K. F. https://creativecommons.org/licenses/by/4.0
Blue patents: expanding the scope of industrial property to foster the blue economy in Brazil
Sustainable innovation depends on the ability to identify and organize strategic technologies, with green patents playing a fundamental role in this process. However, the National Institute of Industrial Property (INPI) does not explicitly address aquatic technologies, leaving these innovations classified under general green technologies. This study proposes the creation of a “Blue Patents” category to classify technologies related to the Blue Economy in Brazil. The research employed an exploratory, cross-sectional, mixed-methods design based on documentary analysis. After screening, 237 patent applications related to the Blue Economy, filed between 1984 and 2024 with Brazil as the priority country, were selected and analyzed using descriptive statistics. The results showed consistent growth in patent filings over the years and revealed gaps in patent classification. While green technologies focus on terrestrial and atmospheric solutions, blue technologies address specific challenges in aquatic environments. Thus, the “Blue Patents” category could increase the visibility of these technologies, guide investment, and facilitate their dissemination to society. This study contributes to improving the Brazilian system, further aligning it with international sustainability standards.
ENVIRONMENTAL ENGINEERING AND SUSTAINABILITY
Copyright (c) 2025 Santos, J. W. dos, Dias, L. V. de J., Rezende, C. M. de F., Barreto Netto, J., Santos, C. A. dos, De Paula, M., & Dias, C. T. https://creativecommons.org/licenses/by/4.0
Analysis of the mechanical properties of concretes with partial and total replacement of natural coarse aggregates by recycled aggregates
Given the increase in global concrete consumption, environmental impacts have also intensified, requiring the construction sector to develop concrete production in line with the Sustainable Development Goals (SDGs). In this context, the use of Construction and Demolition Waste (CDW) as a replacement for natural aggregates emerges as an alternative. Therefore, the objective of this study was to analyze the compressive and tensile strength of concrete produced with recycled aggregate in comparison to reference concrete, through an experimental program using recycled concrete coarse aggregates with maximum diameters of 9.5 mm and 19 mm. For each granulometry, concrete mixtures were produced with natural aggregate replacement ratios of 0%, 30%, 50%, and 100%. Strength tests revealed that the target compressive strength of 25 MPa was achieved by all mixtures, while tensile strength reached between 8% and 12% of compressive test values. The ANOVA statistical method verified that all studied mixtures presented statistically equal mean strengths at 28 days. These results demonstrate that recycled aggregate concrete can be a promising material for the construction sector, while also contributing to SDG 12: Responsible Consumption and Production.
Copyright (c) 2025 Fonseca Junior, G. A. da, Leite, J. C. T., Mendez, G. de P., Haddad, A. N., Silva, J. A. F. da, & Costa, B. B. F. da. https://creativecommons.org/licenses/by/4.0
Study of temporal variability on sugarcane production in the municipality of Pedras de Fogo, Paraíba (2003-2024)
Sugarcane plays an important role in the agricultural economy of Pedras de Fogo, Paraíba, contributing to the economy in terms of generating jobs and income in the region. However, its production has been affected by challenges such as climate variations and traditional agricultural practices. The objective of this study was to analyze the productive dynamics of sugarcane in the municipality of Pedras de Fogo, PB, between 2004 and 2023, seeking to understand the factors that influence this production chain and offer subsidies for local development actions. The methodology consisted of analysis through a database, evaluating the variables: planted area, harvested area, quantity produced, productivity and production value. The results revealed a significant reduction in the cultivated area, which went from approximately 30.000 hectares (ha), in 2004 to approximately 18.000 ha in 2023, with emphasis on 2019, which presented the lowest production. Despite the reduction in area, a trend towards increased production was observed, reflected in the stability of productivity throughout much of the period. Therefore, to ensure the sustainability of the activity, it is necessary to invest in more efficient agricultural practices, adoption of technologies, adequate irrigation management and strengthening of public policies that support local producers.
Copyright (c) 2025 Cruz, R. L. de O., Silva, W. L. C. da, Oliveira, A. C. da R., Isidro, R., Ferreira, M. L. L., Sousa, W. G. de, Sousa, L. H. G., Cordeiro , M. E. B. A., Silva, J. N., Oliveira, R. de, Silva, W. R. da, Silva, J. Y. S. da, Diógenes, A. K. M., Silva, R. B. da, Soares, A. C. da S., Santana, R. F. de, Andrade, P. M. de, Velez, E. da S., Sousa, F. de A. R. da M., … Oliveira, I. G. B. de. https://creativecommons.org/licenses/by/4.0
Alternative proteins in the human diet: Meta-Analytical analyses from 2014 to 2024
This work details the evolution of the use of alternative proteins in human diets, based on a meta-analytical review from 2014 to 2024, highlighting technological advances, cultural challenges, and environmental impacts. Plant-based proteins lead in accessibility, reflecting cultural familiarity, affordability, and sustainability. Microalgae and fungi have also progressed, offering healthy nutritional benefits despite higher costs. Insects have been gaining ground, especially in Asia and Africa, but face resistance in the West. Agro-industrial residues are emerging as a sustainable option, standing out in the context of the circular economy. Globally, microalgae lead in nutritional benefits, while plants and seafood stand out for health and accessibility. Environmental impacts vary plants and insects have low emission levels, while microalgae and seafood face challenges due to high production costs. Nutritional efficiency is highest in plants and microalgae, while insects and agro-industrial residues show potential in specific niches. The alternative protein market is growing, driven by an increase in companies and patents, particularly in Asia and Europe. Despite regional disparities, the trends reflect a shift toward more sustainable and alternative diets. To consolidate these sources, public policies, technological innovations, and food education strategies are essential. Thus, alternative proteins can increasingly become viable in addressing global food security and sustainability challenges.
Copyright (c) 2025 Siqueira, P. D. B., Sanglard, D. A., Pereira, S., Antunes, M. F. L., Silva, L. M., Nogueira, A. da S., Silveira, A. C. A., Torres, B. F., & Batista, F. E. R. https://creativecommons.org/licenses/by/4.0
Melhorando a segurança do paciente em uma organização de saúde brasileira utilizando o pensamento enxuto
This paper aims to present the trajectory of a Brazilian healthcare organization in a Lean Healthcare (LH) project to enhance patient safety and integrate a culture of continuous improvement. The action research is about a unit dedicated to diagnostic imaging medicine to investigate and improve patient safety. Advances in mitigating inappropriate processing, patient waiting, and wastes due to movements of employees during the on-site exams were evident. The proposed changes directly impacted on reducing the risk of patient safety failures, enhanced patient identification, and makespan reduction by 30.37%. The article can motivate researchers and health managers to explore in depth the LH as a foundation for management decisions, especially in emerging countries. The paper illustrates that LH provides a practical framework for healthcare organizations to enhance patient safety, improve operational efficiency, and reduce waste through systematic process improvements and a culture of continuous learning. This research contributes by providing a real-world case of LH implementation in a challenging environment, detailing specific waste categories and mitigation strategies, and reinforcing the value of Lean principles for enhancing patient safety and operational efficiency in healthcare.
Copyright (c) 2025 Da Silva, M. G., Paz, M. da R., Silva, R. M. da, Carvalho, M. N. M. de, Bianchini, V., Lara, R., & Pergher, I. https://creativecommons.org/licenses/by/4.0
Continuous improvement in cotton processing: a case study
This study aims to analyze the production process of a cotton processing company, applying quality tools and statistical methods as a basis for continuous process improvement. The research is characterized as applied and experimental, with a quantitative approach, conducted in a real industrial environment. Critical process variables were evaluated, such as temperature, cotton humidity at different stages, feed rate, and equipment rotations, comparing scenarios with incorrect and correct parameters. The data were subjected to statistical analysis and instrumental verification in the laboratory, making it possible to identify the main causes of variation in operational performance. The results showed high variability in bale weight, with 77.6% non-conformity in relation to the specified limits, with 41% below and 36.6% above the standard weight. The main causes identified are related to operational failures, environmental variations, and lack of standardization between shifts. The application of quality tools allowed the identification and prioritization of the causes with the greatest impact, directing corrective actions aimed at standardizing humidification and pressing, improving communication between operators, and preventive maintenance of equipment. The study highlights the scientific relevance of integrating quality management and industrial statistics as support instruments for decision-making and continuous process improvement in agribusiness.
Copyright (c) 2025 Silva, K. K. N., Amorim, R. M. C., & Silva, Y. L. T. V. https://creativecommons.org/licenses/by/4.0
Analysis of the overall equipment effectiveness (OEE) and improvement proposals for a steel coil longitudinal cutting machine
Overall Equipment Effectiveness (OEE) is a widely used indicator in industry to measure equipment efficiency, considering three components: availability, performance, and quality. In this context, the present study aims to analyze the OEE of a steel coil longitudinal slitting machine, identifying factors that impact productivity and proposing improvements to the production process performance. The analysis of the first sample period revealed availability, performance, and quality rates of 10.54%, 44.15%, and 98.65%, respectively, resulting in an OEE of 4.59%. Using quality management tools, the main causes of production losses were identified, and improvement measures were proposed. For the second sample period, interventions were implemented, such as scheduling production orders, assigning an additional assistant to the operation, and installing a guide to reduce edge trim jams. As a result, an OEE of 9.52% was obtained, with availability at 20.70%, performance at 46.58%, and quality at 98.69%. The OEE was more than twice as high in the second sample period, suggesting that the implemented improvements were effective and may yield even better results if applied together and associated with medium- and long-term actions.
Copyright (c) 2025 Mendonça, A. C. de, Bagni, O. B., Feroni, R. de C., & Demonel, W. https://creativecommons.org/licenses/by/4.0
Atributos que influenciam o turnover em instituições públicas: evidências de uma análise bibliométrica
O turnover no setor público constitui um desafio crescente para a gestão de pessoas, por impactar a eficiência organizacional, a qualidade dos serviços prestados e os custos institucionais. Este trabalho teve como objetivo mapear e categorizar os fatores preditivos da rotatividade em instituições públicas, de modo a oferecer subsídios tanto à produção acadêmica quanto às práticas gerenciais. Para alcançar esse propósito, foi conduzida uma revisão sistemática combinada com análise bibliométrica e metanálise, a partir de dados da base Web of Science no período de 1978 a 2025. A aplicação da Multiple Correspondence Analysis e de análises de clusters permitiu identificar cinco dimensões inter-relacionadas que explicam o fenômeno: condições de trabalho e bem-estar, políticas e cultura organizacional, liderança e relações interpessoais, motivação intrínseca e cidadania organizacional, e fatores estruturais. Os resultados demonstram que a decisão de permanência ou desligamento não decorre de um aspecto isolado, mas do entrelaçamento de variáveis individuais, relacionais e institucionais. Com base nisso, sugere-se que gestores públicos priorizem políticas de qualidade de vida, estilos de liderança justos e práticas de valorização profissional capazes de mitigar a rotatividade. O trabalho contribui ao propor uma estrutura analítica inédita, que pode orientar pesquisas futuras e subsidiar estratégias de gestão de pessoas mais eficazes no setor público.
Turnover, Public Servant, Public administration
Motivation; Satisfaction; Public Servants.
Copyright (c) 2025 Romeiro, P. de M., & Gonçalves, W. https://creativecommons.org/licenses/by/4.0
Logistics risk management in the supply chain in a pharmaceutical distribution organization
In the contemporary scenario, one of the main challenges faced by companies concerns the need to manage the flow of products and services that make up the supply chain, with the purpose of identifying how the integration of links and the sharing of information among them occurs. In this context, supply chain management becomes essential for studying the flow of materials, information, and products among the various members that constitute it. Given this scenario, the objective of this study is to model the supply chain of a pharmaceutical company that distributes products in the hinterlands of Paraíba, Brazil. To this end, the initial configuration of the organization's supply chain was established, and mapping strategies were applied, taking into account the location, lead time, relationships, and quantity of product families supplied by the components of the supply chain. Finally, the data obtained through the mapping process were analyzed. As a result, it was possible to observe, at each level of the chain, how many suppliers and customers the company has in each region of the country, the number of product families each supplier delivers, the nature of relationships among the various links in the chain, and which suppliers have longer lead times and how many have shorter ones.
Copyright (c) 2025 Neves, H. L., & Silva, Y. L. T. V. https://creativecommons.org/licenses/by/4.0
Universidade Federal de CatalãoSIMULATION AS A TEACHING STRATEGY FOR TEACHING AND LEARNING STRENGTH OF MATERIALS
Teaching through expository and dialogued classes of abstract concepts using only blackboards and chalk is still very common in engineering courses. For the Materials Strength discipline, present in Civil Engineering courses, this reality is no different. Shifting to a more concrete approach can encourage active student participation and develop understanding of these concepts. This work aims to present a pedagogical proposal that integrates simulation via the Finite Element Method (FEM) with the free software FreeCAD, as a teaching strategy for the practical teaching of mechanical concepts. For this, data obtained through mechanical testing of cubic test specimens (CPs) with 20 mm edges, 3D printed with PLA material using different filling patterns and theoretical knowledge, was used as a reference. The theoretical and simulated results were compared and showed a good approximation for the stress and strain values, two fundamental concepts in the discipline, highlighting the importance of the methodology as a teaching and learning tool. Furthermore, the proposal promotes an accessible, participatory methodology that adds technological knowledge and encourages innovative pedagogical practices to engineering courses.
Copyright (c) 2025 Elton Brasil Linhares, Gabriel Percival Stoppa, Marcelo Henrique Stoppa (Autor) https://creativecommons.org/licenses/by/4.0
Interactive toy for cognitive stimulation of neurodivergent children: product development following the Product Development Process (PDP)
The neurodiversity paradigm has driven the creation of solutions that promote inclusive cognitive development. Although the toy sector is expanding, there is still a shortage of products that combine safety, multisensory stimulation, and methodological rigor. This article presents the adapted application of the Product Development Process (PDP) in the design and prototyping of a sensory maze aimed at neurodivergent children. The methodology used quality tools such as QFD, the morphological matrix, and FMEA, which were essential for translating complex user needs into technical requirements that ensured engagement, safety, and pedagogical effectiveness. The project prioritized materials such as ABS and acetate, rounded edges, and interactive LED pathways. Additive manufacturing enabled the development of a 3D polymer prototype and the identification of failures prior to production. As a limitation, the study highlights the absence of usability testing, indicating directions for future research.
Copyright (c) 2025 Santos, B. de J. dos, Freitas, A. de O., Santos, A. de M., Alves, L. V., & Barreto, Óliver S. C. https://creativecommons.org/licenses/by/4.0
Identification of occupational risks: a case study in a cosmetics industry
Occupational safety has evolved in Brazil since the 20th century, driven by the need to protect workers, who faced precarious working conditions and frequent occupational accidents. Some significant milestones in this evolution include the creation of the Consolidation of Labor Laws (CLT) and the implementation of Regulatory Standards (NRs) starting in the 1970s. In this context, the adoption of tools such as risk maps and risk and prioritization matrices is of utmost importance. Thus, the aim of this study was to conduct a risk survey in the work environments of a cosmetics industry, evaluate the risks, and establish prioritization criteria for risk treatment. The methodology adopted was both qualitative and quantitative, collecting data comprehensively and on-site, and comparing them with the existing literature. The results showed a high degree of uniformity in risk perception, and the use of the risk matrix was essential for classifying the level of risk, where it was observed that there are no very high risks. The stages of developing the risk map and risk prioritization assessment involved the participation of workers, indicating that mental overload, high concentration levels, and fire should be prioritized.
Occupational health and safety management systems
Copyright (c) 2025 Lira, A. C. R., Pereira, M. E. L., & Colvero, D. A https://creativecommons.org/licenses/by/4.0
Impactos da ventilação cruzada aplicada a abrigo emergencial em contêiner, por meio de simulações computacionais com integração BIM-BES
Com o aumento da ocorrência de desastres e, consequentemente, a crescente demanda por habitações emergenciais, surge a necessidade de uma solução rápida e viável de construção. Os contêineres se encaixam neste contexto visto que sua modularidade atende essas necessidades. Apesar das vantagens, o uso de contêineres para habitações exige atenção quanto ao desempenho térmico, uma vez que este possui a envoltória composta por aço, o que favorece o aquecimento no interior do módulo. Estudos comprovam que o uso de isolantes térmicos na composição das paredes e teto auxilia na melhoria da temperatura no interior, mas não é suficiente para proporcionar níveis adequados de desempenho. Neste sentido, este estudo propõe analisar diferentes abordagens de ventilação cruzada como uma solução a ser associada aos materiais isolantes para melhorar o desempenho térmico desse tipo de habitação. Para isso foram realizadas simulações computacionais de dinâmica dos fluidos para cinco módulos com diferentes disposições de janelas. Para as simulações foram utilizados dois softwares, o que permitiu que fossem realizadas análises acerca da distribuição da ventilação e da temperatura do ar. Por meio dos resultados, é possível concluir que a estratégia mais eficiente para esse tipo de habitação foi do módulo com aberturas frontais convencionais e aberturas altas nas paredes opostas. Ainda, o uso de dois softwares tornou as análises amplas e confiáveis.
Copyright (c) 2025 Mata, L. P. da, Maciel , A. C. F., Costa, B. B. F. da, & Dutra, J. T. https://creativecommons.org/licenses/by/4.0
SimulaQuiz: digital game for Digital Twin education
The rapid evolution of Industry 4.0 has created a growing demand for professionals qualified in digital technologies, especially Digital Twins, whose knowledge has become essential for organizations seeking operational efficiency and cost reduction. Given the lack of effective educational resources for teaching this complex technology, this paper presents the development of SimulaQuiz, a gamified educational game aimed at learning about Digital Twins and their ecosystem. The methodology employed was qualitative and exploratory, structured in five stages: format design, technical development, systematic user testing, software registration with the INPI (Brazilian Institute of Industrial Property), and the construction of a SWOT matrix. The developed product consists of an interactive quiz with 64 questions divided into thematic blocks on simulation, Digital Twins, and Industry 4.0, featuring instant visual feedback and a star-rating system. The SWOT matrix demonstrated that gamification significantly increases student engagement and facilitates the understanding of complex concepts, although it requires adequate technological infrastructure and specific technical knowledge. SimulaQuiz was officially registered as a computer program (BR512025000934-8), contributing to the training of qualified professionals for the challenges of Industry 4.0.
Marcus Vinícius Oliveira Ribeiro Brandão
Copyright (c) 2025 Brandão, M. V. O. R., Nascimento, J. P. S., Lima, L. O., Fonseca, J. V. S., Araujo, A. C. B. de, Silva, M. V. L. da, & Pimentel, C. A https://creativecommons.org/licenses/by/4.0
Use of BIM technology in project coordination: a case study in residential building
Project coordination helps to prevent inconsistencies among disciplines but is often limited when conducted using two-dimensional tools. This study examined the use of Building Information Modeling (BIM) technology to identify clashes between architectural, structural, and plumbing designs in a single-family residential building. The methodology involved creating 3D models using Revit software and performing clash detection in Navisworks with the Clash Detective tool. A total of 72 clashes were identified: 31 between architectural and structural elements, and 41 between structural components and plumbing systems. Some conflicts were resolved through minor modeling adjustments, while others—especially those involving piping—required route modifications and revisions to structural elements. The results suggest that 3D modeling supports early detection of design issues, helping to reduce rework and inform technical decisions. Although limited to a single case, the findings align with previous research on BIM in construction and point to practical advantages for project coordination.
Copyright (c) 2025 Oliveira, J. C. de S., Tavares Neto, T. C., & Silva Neto, D. de C. e. https://creativecommons.org/licenses/by/4.0
Methodologies for evaluating the marginal cost of reducing greenhouse gas emissions in decarbonization: a systematic review
This is a review of methodologies that use the marginal abatement cost (MAC) of greenhouse gas emissions, with the aim of identifying the types of approaches available, their advantages, disadvantages, in which cases they are used and how complex they are (both computationally and in terms of obtaining data). The results of the research found and explained six main types of models: expert-based approaches, engineering models, distance functions, computable general equilibrium models, integrated assessment models and hybrid models in which all use MAC curves to identify economic measures to mitigate climate change and establish decarbonization pathways. In addition, the possibility of using hybrid models that integrate various methodologies for a more complete assessment is discussed, as well as the difficulties of applying them. The main contribution is not only to provide a review of the methodologies, but also to compare them and show in which contexts each one is best applied, seeking to serve as a guide for future research and practical applications in environmental economics.
Copyright (c) 2025 Morila, T. S., & Reis Junior, N. C. https://creativecommons.org/licenses/by/4.0
Um estudo comparativo de simulação do efeito da supressão de colunas na tensão de cisalhamento em uma parede RC em forma de L com aberturas
Os edifícios exigem o uso de paredes de cisalhamento de concreto armado para garantir sua estabilidade e resistência sísmica. Entre as configurações eficazes, as paredes de concreto armado (RC) em forma de L colocadas nos cantos dos edifícios atendem perfeitamente aos critérios de resistência sísmica. Neste estudo, foi explorada uma nova abordagem, que consiste em remover as colunas das paredes em forma de L, e seus resultados foram comparados aos das paredes com colunas. Para avaliar essa configuração, foram realizadas simulações numéricas em edifícios localizados em uma área de alta sismicidade. Os principais parâmetros considerados incluíram a espessura das paredes de cisalhamento, a porcentagem de aberturas e o número de andares. Os resultados da simulação revelam que a remoção de colunas das paredes de cisalhamento em forma de L com aberturas leva à redução máxima da tensão de cisalhamento, independentemente da espessura da parede ou do número de andares. O estudo confirma o efeito benéfico da remoção de colunas para aberturas abaixo de 25%, enquanto a retenção de colunas se mostra vantajosa para aberturas maiores.
Copyright (c) 2025 Salem, M. https://creativecommons.org/licenses/by/4.0
Cyanide-free copper electrodeposition using glycerol: Modeling and optimization
The electrodeposition of copper on a Cu-Zn alloy substrate (brass) is normally carried out using alkaline hydrocyanic baths. However, cyanide copper baths are toxic and require certain care. This work studies the modeling and optimization of copper electrodeposition on brass using an electrolytic bath containing cyanide-free glycerol. A central composite experimental design was carried out to evaluate the effects of the factor’s glycerol concentration, time and amperage in response to cathodic current efficiency. The results showed that the estimated model is predictive (R² equal to 0.9279), with the effects of the linear and quadratic terms of amperage, linear terms of glycerol concentration and the effects of their interactions being significant. The best test resulted in a cathodic current efficiency of 57% and an energy consumption of 234.40 kWh/kg, which represented the highest copper deposition and the lowest energy consumption.
Copyright (c) 2025 Lima, L. F. de, Azevedo, I. G. D. D. de, Magalhães, K. G. D., Pereira, A. A. C., Souza, C. P. de, & Melo, R. A. C. de. https://creativecommons.org/licenses/by/4.0
Innovation in agribusiness: a study of key trends, actors and impacts in the scientific literature (2014-2024)
The agribusiness sector is a pillar of the Brazilian economy, contributing significantly to the country's economic growth. In a sector characterized by constant evolution, innovation is fundamental to guarantee positive results and drive new achievements in the global market. Motivated by this premise, the present study aims to analyze, through a review of the existing literature, the main publications related to innovation in agribusiness. The systematic review follows five phases: definition of research question, selection of database, definition of search methodology, research and tabulation of relevant studies, highlighting of results and study presentation. The VOSViewer® software verifies the links between the researched documents and authors. The analysis identifies the trends and innovative practices in agribusiness and the role of different agents in the innovation process. The results offer valuable insights on innovation in agribusiness, which encompasses several areas, from the adoption of digital technologies and precision agriculture to the development of new business models. The collaboration between different actors, such as companies, universities, governments and rural producers, is essential to drive innovation and ensure its effective adoption in the field.
Copyright (c) 2025 Venturini, S., Rech, C., Rosa, C. B., & Forno, N. S. D. https://creativecommons.org/licenses/by/4.0
Application of the hierarchical process analysis (AHP) method in the evaluation of suppliers in a pharmaceutical distributor: a case study
The research sought to identify the priority criteria for choosing suppliers of a drug distributor, using the AHP (Analytic Hierarchy Process) method. Through an exploratory case study, three main criteria were analyzed: Quality, Lead Time and After-Sales Relationship, defined by logistics operations managers. The results pointed to Lead Time as the most relevant criterion. The supplier FNR-06 obtained the highest score (8.1737), standing out in Lead Time and After-Sales Relationship, while FNR-08 presented the lowest score (7.0559) due to the unsatisfactory performance in Lead Time. The overall ranking showed that all vendors evaluated are between "Moderately Satisfied" and "Satisfied." The research concludes that prioritizing Lead Time is important to meet the company's strategic objectives and that the AHP tool is effective in the multicriteria evaluation of suppliers.
Production Operations and Processes Engineering
Copyright (c) 2025 Silva, J. da S., Licar, L. V., Gonçalves, E. C. G. ., & Nunes, D. R. de L. https://creativecommons.org/licenses/by/4.0
Inovação e economia circular no sistema prisional: uma análise dos 10r’s
Este estudo investiga a aplicação das estratégias dos 10R como alternativa impulsionada por inovação para o avanço da economia circular em penitenciárias estaduais de Santa Catarina. Adota-se um estudo de caso único e qualitativo, triangulando dados de revisão sistemática da literatura, 16 entrevistas semiestruturadas com gestores prisionais e observações diretas. Os resultados indicam que, embora existam práticas sustentáveis isoladas, há carência de coordenação institucional, sensibilização de stakeholders e capacitação técnica. A inovação tecnológica, ferramentas digitais e a reorganização de rotinas organizacionais são identificadas como facilitadores da circularidade. Conclui-se que a transição para a economia circular requer abordagem sistêmica com infraestrutura tecnológica e engajamento contínuo.
Copyright (c) 2025 Veiga, P. M., Sehnem, S., Crizel, A. C. L., Crizel, M. G., & Mazzioni, S. https://creativecommons.org/licenses/by/4.0
Simulation applied to stretcher management: improvements in patient flow in a public hospital in Feira de Santana
The study explores the use of Industry 4.0 technologies in healthcare, focusing on simulation to optimize stretcher-bearer workflows, a relatively underexplored area. Efficient workflows are crucial for the safe transport of patients, directly impacting care quality and hospital resource management. The objective was to use simulation to improve stretcher-bearer workflows in a public hospital in Feira de Santana specializing in maternal and childcare, reducing wait times and optimizing movements. This descriptive research modeled current and future scenarios using FlexSim 24.0.4 software, with data collected from June to October 2024 during the busiest shifts. In the current scenario, a single stretcher-bearer covered 4.10 km per shift, whereas, in the future scenario with two stretcher-bearers, distances decreased to 2.67 km and 2.58 km, respectively. Travel times were reduced, and time available for patient care increased, enhancing operational efficiency. Simulation proved to be an effective tool for logistics optimization, improving care quality and working conditions. These findings highlight the methodology's potential for application in other hospital areas.
Copyright (c) 2025 Cerqueira, E. A. B., Araújo, A. C. B. de, & Pimentel, C. A. https://creativecommons.org/licenses/by/4.0
Profitability, performance and the impacts of Lean philosophy on business efficiency
This study presents a bibliometric analysis focused on the impact of Lean Manufacturing on companies' profitability and performance, based on publications indexed in the Scopus and Web of Science databases. Statistical tools were applied to map the evolution of research and identify key themes addressed in the literature. The results highlight a significant growth in publications on the topic and emphasize factors such as leadership, organizational culture, and strategic alignment as crucial elements for the success of the Lean methodology. The research provides valuable insights into Lean’s influence on business efficiency, underscoring the need for tailored approaches for its effective implementation.
Copyright (c) 2025 Matheus Alves dos Santos, Vanielle Aparecida do Patrocinio Gomes, Wellington Gonçalves, Rodrigo Randow de Freitas (Autor) https://creativecommons.org/licenses/by/4.0
Analysis of predominant factors for the occurrence of aviation incidents in Brazil
Context: Safety in Brazilian civil aviation is vital for the sector trust. The Brazilian Aeronautical Accidents Investigation and Prevention Center (CENIPA) investigates occurrences, classifying their causes into operational, human, and material factors. Objective: To identify the predominant factor in aeronautical incidents in Brazil (2014-2023), providing input to CENIPA to focus on preventive actions and increase the reliability of air operations. Method: Statistical quality control and the Pareto principle were used to identify trends, prioritize problems, and analyze the predominance of each factor. Results: It was concluded that CENIPA faces difficulties in identifying the causes of aeronautical incidents, as many factors were classified as unavailable in the database. The analysis of existing data reveals the predominance of the operational factor in incidents, accounting for approximately 96% of occurrences, with the human factor representing about 4%, and material and other factors showing almost negligible influence. The main types of occurrences associated with the operational factor were bird strikes and system/component failure or malfunction. Conclusions: It is recommended that CENIPA prioritize the development and implementation of solutions targeting the operational factor to reduce incidents in Brazilian civil aviation.
Giovanna Sepulveda de Oliveira Macedo Fortes
Italo Emmanoel Mesquita Oliveira de Moura
Copyright (c) 2025 Araujo, G. J. L., Fortes, G. S. de O. M., Oliveira, V. G. L. de, & Moura, I. E. M. O. de. https://creativecommons.org/licenses/by/4.0
Steel slag mineral carbonation: a critical review on mechanisms, operational parameters, and valorization strategies for CO₂ sequestration
The steel industry is one of the largest global contributors to carbon dioxide (CO₂) emissions, accounting for 7% to 9% of the world's total. In this context, mineral carbonation of steel slags emerges as a promising strategy for permanent CO₂ sequestration and the valorization of industrial waste. This paper presents a critical and systematic review of the literature from 2014 to 2024, exploring fundamental mechanisms, the influence of operational parameters, and the valorization potential of carbonated steel slag. The analysis revealed that, although ladle furnace (LF) and basic oxygen furnace (BOF) slags stand out for their reactivity, sequestration efficiency varies significantly with operational conditions. Indirect methods and supercritical carbonation demonstrated high effectiveness, with capture rates that can exceed 90% and 41.9%, respectively. Pilot-scale studies corroborate feasibility, with reported efficiencies of up to 89.7%. Optimizing parameters such as temperature (around 60-90°C), liquid-to-solid ratio (L/S of 4:1), and fine particle size is crucial, although the effect of CO₂ pressure can vary and, in some cases, excessive pressure may reduce efficiency. Carbonated products have wide applications in civil construction as aggregates and binders, improving volume stability and immobilizing heavy metals, which can reduce CO₂ emissions in concrete production by up to 30%. Challenges such as slag composition variability and high energy consumption for grinding persist. It is concluded that method standardization, parameter optimization, and the promotion of industrial-scale projects are essential to maximize the potential of steel slag as a sustainable solution for decarbonization and the circular economy.
Copyright (c) 2025 Guio, L. L. M., Carvalho, F. L., Moro, L. B., Nariyoshi, Y. N., Oliveira, J. P. de, & Cassini, S. T. A. https://creativecommons.org/licenses/by/4.0