Brazilian Journal of Production Engineering
The Brazilian Journal of Production Engineering (BJPE) is an international, open-access scientific journal published by the Federal University of Espírito Santo (UFES). It is dedicated to publishing original research, reviews, case studies, and technical communications in the fields of engineering, technology, and innovation, as well as related interdisciplinary areas. Established in 2015, the journal promotes the dissemination of scientific knowledge through an editorial process grounded in peer review, ethics, transparency, and scientific integrity, thereby contributing to the advancement of research and the integration of academia, the industrial sector, and society.
Universidade Federal do Espírito Santo - UFES
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Implementation of a project management dashboard in an E-commerce company
With the growth of e-commerce, continuous improvement projects are essential for enhancing operations. This work aims to develop a Business Intelligence (BI) dashboard to improve project management, providing greater efficiency in monitoring initiatives and visibility for stakeholders. To this end, the research methodology used was action research, which allowed for the identification of practical needs, the collection of relevant data, and the implementation of a solution directly within the organizational environment, ensuring that the tool met the specific demands of the study area. The project management BI dashboard centralized information that was previously scattered across spreadsheets, providing greater organization and standardization of project data. Furthermore, the tool improved the visualization of strategic indicators, such as project status, resolution time, and progress, allowing for real-time monitoring. Key results included improved operational efficiency and data-driven decision-making. The developed solution facilitated communication with leadership and key stakeholders through structured reports and insights, contributing to greater agility in decision-making processes.
Innovation, Sustainability, and Entrepreneurship: Paths to Transforming Production Engineering
Copyright (c) 2026 Brunassi, V. R., Campanini, L., & Fernandes, S. da C. https://creativecommons.org/licenses/by/4.0
Otimização da instalação de carregadores para veículos elétricos em rodovias não urbanas: um estudo de caso da BR-386, Motiva Viasul, Brasil
Este estudo visa encontrar os pontos ótimos para a instalação de carregadores para veículos elétricos (EVs) na rodovia não urbana BR-386, parte da concessão da MOTIVA ViaSul. Este trabalho aplica um modelo de Algoritmo Genético (GA) combinado com o Sistema de Informação Geográfica (GIS) para determinar as localizações ótimas das estações de carregamento. O trabalho foi implementado em três etapas. A primeira etapa consiste na aquisição e limpeza do banco de dados, uma vez que os dados são obtidos de diversas fontes. A segunda etapa consiste na implementação do modelo de GA. Esta fase utiliza os dados aplicados, incluindo o fluxo de tráfego (tanto em 2025 quanto uma estimativa para 2030), a infraestrutura de energia elétrica e as especificações dos EVs. A terceira etapa consiste na aplicação de diferentes cenários para obter a solução ótima para o modelo. O modelo encontrou duas localizações ótimas para a alocação de carregadores de EVs, além do número ideal de carregadores, do tamanho médio da fila e da porcentagem de utilização dos carregadores, dependendo do cenário, seja o de 2025 ou o de 2030.
Copyright (c) 2026 Teixeira, T. de. O. M. & Garcia, R. C. C. https://creativecommons.org/licenses/by/4.0
Models for predicting environmental impacts with artificial intelligence: a bibliometric review
This study examines the evolution of international scientific production on environmental impact prediction models based on AI algorithms, with an emphasis on Machine Learning-ML techniques applied to the context of climate change. The objective was to map trends, identify gaps, and assess the consolidation of this field, considering its potential for integration with sustainability metrics. The research used bibliometric methods based on 631 articles indexed in the WoS between 1945-2023, analyzed with the Bibliometrix in R software. The results indicate exponential growth in publications since 2016, accompanied by the predominance of China, the USA, and India in both volume and scientific influence. The application of Bradford’s and Lotka’s Laws revealed a concentration of production in a few journals and high authorial fragmentation. The thematic analysis showed that ML, climate change, and prediction models are the driving themes of the field, although still focused on isolated environmental variables. It was found that there is an absence of integrated models articulating environmental forecasts, socioeconomic impacts, and governance dimensions, as well as a lack of systematic connections between AI techniques and ESG indicators. It is concluded that this integration constitutes a promising frontier for future research and for the formulation of sustainability strategies.
Copyright (c) 2026 Martinez, G. L. F., Constantino, M. A. & Pistori, H. https://creativecommons.org/licenses/by/4.0
Improvements in the environmental aspects and impacts matrix for the agricultural machinery sector
The article addresses the application of the Environmental Aspects and Impacts Matrix in the management of environmental risks in an agricultural machinery industry. The main objective of the study is to support the maintenance of ISO 14001 certification and to reduce the environmental impacts of production activities. The research adopts a quantitative and exploratory approach, using process analysis to identify and quantify environmental impacts. To this end, an improvement proposal for the Matrix was implemented, structured into four stages: identification, characterization, significance assessment, and definition of control actions. As part of continuous improvement, an interactive system was developed in Microsoft Power BI® to facilitate the visualization and management of environmental risks. The results indicate a 49.4% reduction in significant environmental impacts, a 69.5% increase in the number of environmental projects implemented, and a 269.5% increase in the reduction of non-value-added (NVA) activities, reflecting greater production efficiency. Additionally, operational costs were reduced by 389.8% compared with the previous period. In the qualitative dimension, greater employee engagement in adopting sustainable practices was observed, strengthening the organizational culture focused on sustainability.
Copyright (c) 2026 Ponte, P. R. M. M., Fernandes, N. J., Araújo, F. de, & Cardoso, L. de S. https://creativecommons.org/licenses/by/4.0
Improving Total Productive Maintenance through Machine Learning for failure prediction
When treated correctly, data can generate valuable information. Technological advancement has contributed to the development of tools for analyzing large volumes of data, along with algorithms capable of identifying patterns and making predictions based on statistical methods. In this study, ways of applying data analysis and methods based on machine learning are investigated using a synthetic database 'AI4I' for engine failures. The method used in this work consisted of going through all the stages of applying machine learning, from data selection, treatment, visualizations, and the creation of five predictive models using different algorithms and their interpretations. Python was used as the programming language. Finally, it was possible to compare the performance of the different algorithms and conclude that the Random Forest method proved to be more efficient, with an accuracy of almost 100%, indicating that this model is effective for the specific database.
Copyright (c) 2026 Oliveira, G. S. de, Luche, J. R. D., Silva, A. F. da, Fernandes, L. C., & Freitas, C. R. de https://creativecommons.org/licenses/by/4.0
Lean Healthcare for financial management in accredited hospitals: a bibliometric study of scientific production
The healthcare system faces chronic challenges related to overcrowding in hospitals, as well as long waiting times for care and growing pressure for greater efficiency in resource management. In this scenario, Lean Healthcare emerges with the goal of eliminating waste, standardising processes, and adding value to the patient. Despite the expansion of literature on the subject, there are still gaps in understanding research trends, the tools most used in accreditation processes, and the specific contexts for applying Lean methodology in hospital environments with a view to sustainability of results. This study aimed to conduct a systematic review of the literature to map scientific production based on the keywords “Lean Healthcare,” hospital, and standard*. The research is exploratory and descriptive in nature, with a qualitative and quantitative approach. The Web of Science and Scopus databases were used, first without filters and then with a time frame from 2010 to 2025. Data analysis was conducted in RStudio, with Bibliometrix, revealing progressive growth in publications over the last ten years and identifying a lack of studies relating Lean to financial indicators, pointing to an opportunity for research that integrates the Lean Healthcare methodology with hospital economic and financial management.
Copyright (c) 2026 Ribeiro, T. L. M., Melo, I. C., & Tinoco, C. M. M. https://creativecommons.org/licenses/by/4.0
Use of the AHP matrix for selecting Lean tools in the healthcare area
Lean Healthcare is a methodology based on the principles of Lean Manufacturing applied in health units. This philosophy is of great importance for health in Brazil, since it reduces overcrowding, waiting time, costs and ensures continuous improvement in patient health care. This work aims to select the Lean tools that most impact waste in the health area. The Hierarchical Analysis Method (AHP) was applied, which aims to compare and evaluate the options based on multicriteria following the respective steps: definition of criteria; hierarchy of criteria; comparison of options; calculation of priority and selection of the best option; and analyzing the results obtained from the calculation of the priorities of each tool. Thus, the criteria are 8 tools and the 8 wastes of lean production. In the result of the hierarchical comparison, Value Stream Mapping (VSM) stands out as the tool with the greatest impact for the study and mitigation of waste in Lean Healthcare. It is noted that the MFV's ability to visualize processes encourages the identification of unnecessary activities and sources of waste in health units, improving the management and functioning of hospitals and, consequently, promoting safety and quality in patient care.
Copyright (c) 2025 Camille Pereira Guimarães, Andressa Clara Barbosa de Araujo, Barbara Emanuelle Cavalcante dos Santos, Cristiane Agra Pimentel (Autor) https://creativecommons.org/licenses/by/4.0
Application of the Method for Analysis and Problem Solving (MASP) in inventory control of a steelworks
The steel industry is a fundamental sector for the economy, being responsible for the production of steel, which is an essential raw material for several industries. Efficient inventory management in this segment is crucial to ensure competitiveness and reduce operating costs. This study aimed to analyze the quantity of raw material in stock in the production sector of a steel mill, seeking to understand the causes of excess product stock and propose solutions based on the MASP tool. This article portrayed the causes of the reduction in inventory turnover, gathering information directly from the company and, subsequently, mapping actions to determine the cause of the problem. To this end, integrated with MASP, tools such as the ABC curve, Ishikawa Diagram and 5W1H were used. The main cause of the problem was the excess stock of coal on ships due to a maintenance stop at a berth in the port terminal. The implementation of the action plan involved measures such as postponing deliveries and managing the raw material yard. The study reinforces the importance of MASP as an effective tool for inventory management, promoting continuous improvement and optimization of the company's logistics processes.
Copyright (c) 2025 Roger Elias Chaves, Rita de Cassia Feroni (Autor) https://creativecommons.org/licenses/by/4.0
Resources for the evaluation of the effectiveness of a Kaizen program aimed at reducing Lead Time
This article proposes resources for evaluating the effectiveness of a Kaizen program in reducing lead time in a process for manufacturing professional uniforms. Through a case study conducted at Alpha, the periods before and after the adoption of the Kaizen program were compared, with the aim of measuring its impacts on production performance. The analysis focused on nonparametric data, using statistical tools such as descriptive statistics, histograms, time series graphs, verification of data normality with the Anderson-Darling test, as well as the application of the nonparametric Mann-Whitney test to investigate potential differences between the scenarios evaluated. The results indicated a reduction in lead time and a decreasing trend over time, although the statistical analysis did not reveal significant differences. Given the lack of standardized criteria for the objective measurement of the effectiveness of Kaizen, the study proposes a set of analytical instruments that allow for the systematic evaluation of improvements in production processes. In this way, it contributes to the advancement of research on continuous improvement, offering theoretical and practical support applicable in similar industrial contexts.
Copyright (c) 2025 Thiago Loretti Arico Martins, Marilia Macorin de Azevedo (Autor) https://creativecommons.org/licenses/by/4.0
Presentation of a framework for calibrating temperature sensors
Metrology plays a crucial role in the standardization of measurement units, always considering uncertainty in its results, which is important at all levels of comparison. This study aimed to present and implement a framework for the calibration of temperature sensors, through the construction of two prototypes with two temperature sensors and a reference thermohygrometer. The research method was carried out in four phases: selection of materials (Phase I), assembly and validation of prototypes (Phase II and III), analysis of the collected data and proposal of a framework (Phase IV). For this study, sixty samples were collected at 1-minute intervals for comparison with the thermohygrometer. The results demonstrated that both sensors presented differences in relation to the thermohygrometer, with averages of 1.7383°C for the DHT11 and 0.8253°C for the GY-906 BCC. The calibration process was conducted through adjustment calculations in order to align the sensor measurements with the reference values. After implementing these adjustments, the calibrated prototypes were able to perform more accurate and consistent measurements. Therefore, the calibration of the aforementioned sensors through the proposed framework reduced the uncertainty of the temperature measurements.
Copyright (c) 2025 Flávio Fraga Vilela, Isadora Bernardo Rezende (Autor) https://creativecommons.org/licenses/by/4.0
Challenges and opportunities in the use of e-gov platforms: perspectives of retired public servants and pensioners
Smart cities are based on the use of information and communication technologies (ICTs) to improve the quality of life of citizens in the provision of public services. In this context, e-gov stands out, which seeks to promote efficient delivery; however, the issue of accessibility for users emerges as a basic concern. The objective of the study was to analyze how the services provided by e-gov can be more accessible to retired public servants and pensioners. A systematic literature review was carried out, using bibliometric analysis to identify trends, patterns, and gaps. A significant discrepancy was revealed between citizens' preference for traditional communication channels, such as telephone and in-person service, and the digital strategies adopted by governments, which aim at the cost efficiency of digital channels. Resistance to digitalization is exacerbated by challenges such as lack of familiarity with digital technologies and the need to simplify digital interfaces. Although the need to improve the experience, trust, and accessibility was identified, no studies were found that addressed all topics in an integrated manner. Thus, it is suggested that there is a need for further exploration, focusing on strategies to overcome resistance to digitalization, balance digital efficiency and accessibility, and adapt successful smart city practices to improve technological infrastructure and urban planning.
Copyright (c) 2025 Patricia Curbani De Pietre, Rodrigo Randow de Freitas, Adriana Fiorotti Campos (Autor) https://creativecommons.org/licenses/by/4.0
Integration of Hr systems into the admission process in a tech recruitment company: a case study
The automation of the initial flow of information in the hiring process at a tech recruitment company represents a step forward in the optimization of workflows. The proposal aims to replace manual tasks with an automated system via webhooks, with the aim of reducing operational costs, eliminating errors, rework and waste of human capital, in addition to increasing data accuracy and integrity. Automation also contributes to reducing the execution of low-complexity tasks by operational personnel, reallocating labor to more strategic and value-adding activities. This study addressed the challenges of the manual process, such as filling errors and rework, which are reasons for delays in the onboarding of new employees. Automation seeks to mitigate these problems, aiming at a more fluid integration between systems and data consistency. Financial viability was evidenced by the projected cost savings, which allows for better allocation of resources and frees up the Human Resources team for more strategic activities. Aligned with the principles of Industry 4.0, automation integrates digital technologies to improve data quality and integrity and real-time analysis, promoting digital transformation and continuous innovation, which contributes to sustainable and efficient growth.
Copyright (c) 2025 Lais Amaral Cunha de Carvalho, Djoille Denner Damm, Eron Passos Andrade (Autor) https://creativecommons.org/licenses/by/4.0
Fatores que impactam os consumidores em serviços de sites: uma revisão bibliométrica em tempos de pandemia
A pandemia da COVID-19 impulsionou as compras online, exigindo que organizações aprimorem a qualidade do serviço de seus sites. Diante da falta de conhecimento prévio sobre os fatores que satisfazem os consumidores, esta pesquisa realiza uma revisão sistemática para identificar dimensões e atributos críticos que influenciam a qualidade do serviço do site e a satisfação do consumidor em um contexto pós-pandemia. Utilizando a Teoria da Abordagem Meta-Analítica Consolidada (TEMAC), a revisão segue três fases estruturadas: preparação da pesquisa, apresentação e inter-relação dos dados, e detalhamento e integração do modelo. Essa metodologia aplica princípios bibliométricos para sintetizar os achados de 88 artigos selecionados. A análise identifica onze dimensões essenciais da qualidade do serviço do site: facilidade de uso, design/aspecto do site, pesquisa online, segurança/privacidade, personalização, eficiência, disponibilidade do sistema, confiabilidade, qualidade das informações, capacidade de resposta/garantia/confiança e entrega/cumprimento. Os resultados oferecem insights valiosos para organizações que buscam melhorar seus serviços online. Ao priorizar essas dimensões, empresas podem formular estratégias para aumentar a satisfação do consumidor, fortalecer a confiança e proporcionar uma experiência superior de compras online. Este estudo contribui para a literatura ao apresentar uma estrutura abrangente sobre qualidade do serviço do site, com implicações acadêmicas e práticas.
Copyright (c) 2025 André Philippi Gonzaga de Albuquerque, Claudia Editt Tornero Becerra, Fagner José Coutinho de Melo, Denise Dumke de Medeiros (Autor) https://creativecommons.org/licenses/by/4.0
Comparative analysis of the technical and economic feasibility of supplying electricity during peak hours using diesel generation and battery storage systems
This paper presents a comparative analysis of the technical and economic feasibility of supplying electricity using Diesel Generation Systems (DGS) and Battery Energy Storage Systems (BESS) during peak hours to reduce energy costs in the University Hospital of the Federal University of Paraíba (UFPB). Data on energy consumption was collected to identify the unit's consumption profile. The main economic indicators were applied: NPV, payback, IRR and LCOE. The Monte Carlo Simulation (MCS) method was used. Four DGS and four BESS proposals were compared. The best SGD proposal presented the following results: payback of 11.2 years, NPV of R$252,109.46, IRR of 15.47% and LCOE of R$3,075 and the best BESS proposal, with payback of 9.8 years, NPV of R$1,596,671.33, IRR of 17.58% and LCOE of R$2,134. SMC obtained the following results: for SGD, there was a 0.8032 probability of the IRR exceeding the Minimum Attractive Rate (MAR). For BESS, the probability of NPV greater than 0 and IRR greater than MAR was equal to 1.
Copyright (c) 2025 Paulo Felix do Nascimento Neto, Altemir Tomaz de Carvalho Garcia, Isaac Soares de Freitas, Fabiano Salvadori (Autor) https://creativecommons.org/licenses/by/4.0
From waste to resource: the potential of using cassava wastewater as fertilizer in agriculture
Manipueira, the liquid residue from cassava processing, has high potential as a fertilizer due to its composition rich in essential nutrients (N-P-K). Its use in agriculture has been studied as a sustainable alternative to reduce reliance on chemical fertilizers and minimize environmental impacts caused by improper disposal of this waste. In this context, the objective was to analyze the main effects of using manipueira as a fertilizer, as evidenced in the scientific literature, focusing on its influence on soil fertility, plant development, and agricultural productivity. The methodology adopted for this study consisted of an Integrative Literature Review (ILR), conducted through searches in the SciELO and CAPES Periodicals Portal databases, covering publications from the period 2018 to 2024. The results indicate that manipueira can improve soil structure, increase water retention, and supply essential nutrients. However, excessive use may cause salinization in poorly drained soils. Thus, it is concluded that manipueira is a promising alternative for agroecology but requires proper management.
Copyright (c) 2025 Wemerson Leonardo Cruz da Silva, Lourenço Oliveira dos Santos (Autor) https://creativecommons.org/licenses/by/4.0
Multi-criteria model for prioritizing management actions: case study in a sugar energy industry
To generate competitive advantage, sugar and ethanol industries seek procedures and technologies that can promote continuous improvements in their processes, especially in logistics management and storage of their products, such as sugar, which is implicitly linked to food safety. Thus, the objective of this work is to propose a multicriteria decision support model aligned with the expectations of logistics management and the activities inherent to the bagging, storage, and distribution of sugar from a plant located in northeastern Brazil. The PROMÉTHÉE method was used to evaluate the problem and order the alternatives according to the decision maker's preferences, thus obtaining a ranking with fifteen positions for the alternatives that would be applied in the industry's logistics management, the first three being: creation of an allergen management system, daily inventory monitoring, and control of sugar specifications. The ordered alternatives began to be applied in the 2022/2023 harvest in the industry, with satisfactory results and good adherence by other sectors.
Copyright (c) 2025 Elenilson Rivando dos Santos (Autor) https://creativecommons.org/licenses/by/4.0
Safety in agricultural work: a documentary review of the regulatory standard 31
The agricultural sector is endowed with numerous risk factors. Many of these remain implicit due to the devaluation of rural work. However, since the approval of NR 31 by Ordinance No. 86 of 2005, agricultural work has gained a foundation on the issues of occupational risks related to rural work. Since 2005, until the present year, nine updates have been registered that modified the text of the standard, introducing new parameters to be followed with a view to protecting the worker. Based on this, through documentary research, we sought to analyze the ordinances that updated NR 31 to understand their contributions within the risk management process. At the end of the research, it was possible to attest that the updates to the standard, even if late in some cases, contribute in a highly positive way to the management of risks in the work environment of agricultural workers. The research contributes to new studies focused on safety in agricultural work.
Copyright (c) 2025 Inácio Alves de Lima Neto (Autor) https://creativecommons.org/licenses/by/4.0
Analysis of the regional potential for electricity generation through the energy recovery method of municipal solid waste
Global population growth has generated a significant increase in the demand for electricity and in the production of Municipal Solid Waste (MSW). A sustainable alternative adopted globally, but still little explored in Brazil, is energy recovery via Waste-to-Energy (WTE) technology. WTE converts MSW into thermal or electrical energy through thermal processes, such as incineration, reducing the volume of waste and mitigating environmental impacts. In view of this, this study aimed to evaluate the regional potential for energy generation from MSW incineration. The gravimetric composition and Lower Calorific Value (LCV) of the waste were analyzed to estimate the electricity generation capacity in the different Brazilian regions. The results reveal that the Southeast and Northeast regions stand out for their greatest potential, while the national use of MSW can meet up to 3.1% of Brazil's current electricity demand, demonstrating the relevance of this solution to diversify the energy matrix and reduce the environmental impacts associated with waste.
Copyright (c) 2025 Vinicius de Jesus Almeida Lima, Luís Oscar Silva Martins, Camila Ferreira Escobar (Autor) https://creativecommons.org/licenses/by/4.0
A critical analysis of the economic factors of adoption of renewable energy in different Latin American countries
Renewable energy sources, such as solar, wind, biomass and geothermal, are sources that regenerate naturally and, therefore, offer a more sustainable alternative to energy sources from fossil fuels. Therefore, in developed countries, large-scale adoption reflects favorable economic policies. However, in underdeveloped or developing countries, economic barriers persist that hinder the adoption of these energy sources. In this context, this article aims to discuss the main limiting factors found in the literature, from an economic point of view, for the adoption of renewable energy in selected countries in Latin America. To this end, a systematic review of the literature was carried out in the Science Direct, Scopus and Web of Science databases. It was concluded that the main economic limiting factors for the adoption of renewable energy are associated with dependence on fossil fuels, high installation costs, lack of infrastructure, financing difficulties and government economic support. It is also noteworthy that selected countries in Latin America were included in the study, since the literature found for these countries is scarce.
ENVIRONMENTAL ENGINEERING AND SUSTAINABILITY
Copyright (c) 2025 João Victor Araújo de Freitas, Izabel Cristina Zattar (Autor) https://creativecommons.org/licenses/by/4.0
Active learning and outreach activities into production engineering courses at UNIVASF/Campus Salgueiro
This paper presents and discusses the perception of students enrolled in the “Quality Management” and “Service Management” courses offered in the Industrial Engineering undergraduate program at the Federal University of São Francisco, Campus Salgueiro. These courses were based on active learning methodologies and outreach activities. A survey was administered to 20 students who responded to an evaluation form provided virtually. The results indicate a generally positive perception of the courses’ dynamism and the development of professional skills. The pedagogical approach based on active teaching-learning methods was positively evaluated by the students. The findings highlight the importance of the teacher's role as a facilitator in the learning process, promoting an engaging and formative educational environment. The study has significant implications for teaching practices and the curricular development of engineering programs, providing insights for improvements in the teaching and learning process.
Copyright (c) 2025 Felipe Guilherme Oliveira-Melo, Ângelo Márcio Oliveira Sant'Anna, Ava Santana Barbosa (Autor) https://creativecommons.org/licenses/by/4.0
Optimization of production planning and control in a clothing industry through lean manufacturing
This article presents a case study on the application of Lean Manufacturing to optimize Production Planning and Control (PPC) in a clothing industry. The research was conducted in a company in the sector, which faced challenges related to long lead times, high demand variability and low flexibility in production processes. Given the competitiveness of the market, several businesses have sought to standardize and improve the predictability of their businesses. Companies seek characteristics that allow them to obtain good results compared to the competition. A proposal for improving business forecasting is presented by analyzing the process and identifying solutions with the principles of Lean Manufacturing. Tools such as value stream mapping, implementation of kanbans and reorganization of the factory layout were applied. The results obtained after implementing Lean Manufacturing were significant, allowing productivity gains and cost reductions with improved indicators. There was a 30% reduction in production lead times, a 20% decrease in in-process inventories and a 25% improvement in production flexibility to meet demand variations.
Copyright (c) 2025 Thaysa Mesquita, Patrícia Dias Araújo (Autor) https://creativecommons.org/licenses/by/4.0
Solid waste management in a higher education institution in the western Amazon, Brazil
Waste generation in universities has become a challenge over the years, mainly due to the lack of correct management. The present study aims to analyze the management of solid waste at a higher education institute (HEI) located in Amazonas. In the first stage, solid waste gravimetry was carried out at three different moments. Next, each stage of waste management was analyzed, including segregation, packaging, internal transport, temporary storage, collection and external transport and final disposal. It was found that the IES generates 44.56% of organic waste, 36.18% of recyclable materials, and 19.23% of waste equivalent to waste generated. In the analysis of the waste management system, it was found that the IES needs adjustments such as the destination of waste and the care taken with the collection of hazardous waste. With a positive evaluation, the collection of recyclables is carried out by the municipality's collectors' association and the correct disposal of hazardous waste, which takes place by a licensed company. Therefore, it is understood that IES has a functioning waste management system, but that it still needs improvements.
Copyright (c) 2024 Lenimar de Rebouças de Castro, Evely Laranjeira Marques, Francinete Soares Marques, Rodrigo Couto Alves (Autor) https://creativecommons.org/licenses/by/4.0
Report of academic experience: active methodology in prototyping bead bracelets and the learning process
Contemporary students demand an education that provides them with the skills to act to solve problems of various dimensions. Thus, the teaching method must match the context and objectives in which it is applied, which includes the use of active methods for dynamic and innovative learning. The aim of this article is to report on the experience of students on the Industrial Production Management Technology course in prototyping children's bead bracelets using the active design thinking methodology. The activity carried out by the students took place over two class days. The methodological procedure had a qualitative approach, an applied and descriptive nature and systematic observation was carried out in a laboratory situation (classroom). The result showed that the observed experience generated satisfaction among the end consumer and the students, who improved their skills and learning abilities.
Copyright (c) 2024 Erick Ferreira Alvarado, Bruno Ribeiro da Silva, Natalya Reis da Silva, Wellington Gonçalves, Mauro Machado de Oliveira, Carlos Alves de Lima Nascimento, Rodrigo Ribeiro Oliveira (Autor) https://creativecommons.org/licenses/by/4.0
Financial wellbeing: mapping the determining factors
Financial well-being has become an important element for individuals and families, as well as for governments and institutions, due to record-high savings rates and inadequate long-term financial planning. Understanding what is associated with financial well-being and how to improve it becomes an important goal. Therefore, this article aims to conduct a systematic review of the literature, seeking to identify factors that influence/determine financial well-being. To this end, the steps proposed by Donato and Donato (2019) were followed. Forty articles were selected from the Web of Science (WoS), Scopus, SciELO and Spell databases for the analysis. The results pointed to important relationships between financial well-being and elements representing financial literacy, specifically financial behaviors. In addition, financial inclusion, financial socialization, financial capability, self-efficacy and happiness are also considered determining factors.
Copyright (c) 2024 Nathállya Etyenne Figueira Silva, Aldo Leonardo Cunha Callado, Yuri Laio Teixeira Veras Silva (Autor) https://creativecommons.org/licenses/by/4.0
Analysis of the economic-financial viability of basic sanitation service models in the municipalities of Amazonas: a case study of the municipality of Itacoatiara
Basic sanitation is seen as a fundamental right in Brazil, which is governed by Law 11,445/2007, which aims to universalize water supply, sewage and solid waste management services. In view of this, in the state of Amazonas, especially in its 62 municipalities, we can mention the several significant challenges facing this universalization. Furthermore, a reduction in fees is made possible, in accordance with the New Legal Framework for Basic Sanitation, but with the exception of Manaus. Therefore, this study aims to analyze the economic and financial accessibility of basic sanitation management models in the municipalities of Amazonas, essentially in the Autonomous Water and Sewage Service (SAAE) of Itacoatiara. However, despite the data from the National Sanitation Information System (SNIS) being reviewed, the lack of consistent information in the models was noted, which consequently made it difficult to use them in this analysis. Therefore, the assessment of SAAE was based only on the financial statements from 2020 to 2022. Thus, the results indicated that the SAAE of the municipality of Itacoatiara remained financially stable, through initiatives originating from implementations aimed at optimizing costs and strict control of revenues. Thus, despite good management, there are still difficulties to be faced, such as fluctuations in revenue and problems with default. That said, there is a need for greater transparency and strategic planning in order to certify long-term financial sustainability. Finally, we can conclude that supervision and improved transparency are essential to improve the viability and effectiveness of sanitation services provided in this state.
Copyright (c) 2024 Naedno Augusto Dolzane dos Santos, Evely Laranjeira Marques, Rodrigo Couto Alves (Autor) https://creativecommons.org/licenses/by/4.0
Using the HFMEA tool to improve pressure injury risk management in intensive care patients
The search for management that actively integrates aspects of quality, health, safety and the environment in health systems has brought about the need to identify and prevent potential failures. Therefore, the present research aims to investigate the possible failure modes and effect of Pressure Injury (PPI) in patients in the Intensive Care Unit (ICU) of a public hospital, through the application of the HFMEA method. The research is characterized as exploratory and descriptive of the case study type, making it possible to obtain in its results the establishment of improvement actions for those failure modes that presented RPN greater than 630, which mainly refer to training and continuing education programs. Furthermore, the tool proved to be necessary for hospital risk management.
Copyright (c) 2024 Andressa Clara Barbosa de Araujo, Cristiane Agra Pimentel, Itayany de Santana Jesus Souza (Autor) https://creativecommons.org/licenses/by/4.0
Biorefineries: summary with definitions, classifications and industrial processes
The increasing demand for energy derived from petroleum generates various environmental impacts, especially due to the emission of greenhouse gases (GHG) resulting from the combustion of these fuels. In this context, biofuels are presented as a renewable alternative from biomass that can be converted into mechanical, thermal, or electrical energy. A biorefinery is a biomass processing industry, and the production of biofuels is one of the highest value-added products. Therefore, the main objective of this work is to provide information on the concepts, classifications, and processes of biorefineries, thus offering a basis for future research and energy development. The methodology used included searches in databases such as CAPES Journals, Google Scholar, and Scielo. The results show that biorefineries are essential for industrial and environmental development. However, it is concluded that further maturation of decision-making processes by responsible bodies is needed to ensure effective and sustainable implementation.
Copyright (c) 2025 Victoria Victor Soares, Luiz Eduardo Freitas de Moura, Katia Moreira de Melo (Autor) https://creativecommons.org/licenses/by/4.0
Design of a low-cost elutrition system for separation of raw conilon coffee beans of different diameters
Coffee processing aims to produce more homogeneous batches that meet commercialization and industrial standards. Considering the limitations of small producers, a low-cost multistage elutriator was designed. Each stage was composed of plastic tubes with diameters of 50, 75, and 100 mm, connected in series from the smallest to the largest. The separation of raw conilon coffee beans was evaluated using air as the transport fluid. Initial characterization indicated particle diameters between 0.60 and 0.93 cm. No correlation was observed between diameter and specific mass, nor between specific mass and terminal velocity. This behavior may be associated with variations in sphericity. Terminal velocity showed an inverse linear relationship with particle diameter. At an elutriation velocity of 713.13 cm·s⁻¹, more than 87% of the smaller beans were recovered. Material transported to the remaining stages of the system was considered defective.
Copyright (c) 2025 Thales Amaral Freires, Nícholas Alexandre Berger Bento, Vinícius Barroso Soares, Paulo Sergio da Silva Porto (Autor) https://creativecommons.org/licenses/by/4.0
Evaluation of pine biomass calcination effectiveness through a boiler
The search for alternatives that enable the use of renewable energy has become a major challenge regarding the effective use of all raw materials. Forest biomass has emerged as an economically viable option due to its abundance. Several companies use this material to generate thermal energy, yet there is an underuse of woody biomass. Therefore, the objective of this study was to evaluate the effectiveness of calcining pine biomass through its combustion in a boiler. The methodology consisted of a case study in a timber company that uses a boiler to generate thermal energy and this transformation generates wood ash. The ash was calcined at varying times and temperatures, investigating the homogeneity and efficiency of mass loss in each treatment. The results indicated that with longer times and temperatures better results were obtained, reaching complete homogenization of the ash sample with 5 hours and 700° C, as well as the same treatment being the most effective in mass loss with 44.34%. The conclusion showed that time was more effective than temperature, and that the ash studied was underused, having the potential to maximize thermal benefit.
Copyright (c) 2025 Felipe César Faedo Thives, Abrahão Bernardo Rohden (Autor) https://creativecommons.org/licenses/by/4.0
Soil physical properties under different uses in the coastal tableland’s region of Espírito Santo
Monitoring soil quality through its physical properties is important for diagnosing and maintaining the sustainability of agricultural systems. Physical indicators are related to the arrangement of particles and pores, affecting root development, seedling emergence and water infiltration. The aim was to evaluate changes in the physical properties of the soil in the Tabuleiros Costeiros region of São Mateus-ES, under the cultivation of perennial crops, providing relevant information for the management of these agricultural systems. The study was carried out on Yellow Argissolo in a completely randomized experimental design (DIC), in a 3x2 factorial scheme, with three adjacent areas (black pepper, coco-da-baía and native forest), at two depths (0-20 and 20-40 cm) and five replications. Soil resistance to penetration, moisture, macro and microporosity, soil density, aggregate stability and organic matter were evaluated. The native forest showed more favorable results for plant development. The cultivated areas showed differences in the properties evaluated, with dissimilarity in relation to the forest and similarity between them, for both depths. The replacement of native vegetation caused an increase in soil density and a reduction in microporosity, total porosity, organic matter and aggregate stability, showing the effect of conventional soil cultivation on its physical attributes.
Copyright (c) 2025 Juliana Zambom Piassi, Jessica Almeida Jorge, André Orlandi Nardotto Júnior, Adriel Lima Nascimento, Rickelme Zordan de Lira, Tiago Marcarini Taliaferro, Eduardo Cosme Gonçalves, Francine Bonomo Crispim Silva, Robson Bonomo, Ivoney Gontijo, Fabio Ribeiro Pires (Autor) https://creativecommons.org/licenses/by/4.0