Pub Date : 2022-01-01DOI: 10.1590/1806-9649-2022v29e5222
Vagner Batista Ribeiro, D. Nakano, Jorge Muniz Jr., Rafaela Brino de Oliveira
Abstract This paper aims to discuss how Knowledge Management (KM) can support the Industry 4.0 (I4.0) implementation. The paper analyzes the relevant literature and explores related research opportunities, which can provide insights and assist researchers in future studies. I4.0 technologies can influence work flexibility, autonomy, job performance and innovation, but the acquisition and dissemination of knowledge, especially on the shop floor, remain dependent on employees, indicating human concerns which can be supported by KM. We conducted a literature review on KM and I4.0 on 41 papers selected from the Clarivate Web of Science Core Collection, published between 2010 and 2021. Structured summaries were developed, that lead to broad themes. Findings indicate three themes relating KM and I4.0: Technology, which explores infrastructure demands for implementation and its influence on the knowledge creation process; KM and learning, which reinforces the importance of both hard and soft skills, and indicates the need to investigate enablers factors for knowledge creation and sharing; and Worker engagement, which consider communicational, cultural and trust-related aspects for worker's development. This paper explores the I4.0 implementation and indicate concerns involving workers and the technologies adoption, which can provide insights and assist researchers in future Operations Management practices and related researches.
{"title":"Knowledge management and Industry 4.0: a critical analysis and future agenda","authors":"Vagner Batista Ribeiro, D. Nakano, Jorge Muniz Jr., Rafaela Brino de Oliveira","doi":"10.1590/1806-9649-2022v29e5222","DOIUrl":"https://doi.org/10.1590/1806-9649-2022v29e5222","url":null,"abstract":"Abstract This paper aims to discuss how Knowledge Management (KM) can support the Industry 4.0 (I4.0) implementation. The paper analyzes the relevant literature and explores related research opportunities, which can provide insights and assist researchers in future studies. I4.0 technologies can influence work flexibility, autonomy, job performance and innovation, but the acquisition and dissemination of knowledge, especially on the shop floor, remain dependent on employees, indicating human concerns which can be supported by KM. We conducted a literature review on KM and I4.0 on 41 papers selected from the Clarivate Web of Science Core Collection, published between 2010 and 2021. Structured summaries were developed, that lead to broad themes. Findings indicate three themes relating KM and I4.0: Technology, which explores infrastructure demands for implementation and its influence on the knowledge creation process; KM and learning, which reinforces the importance of both hard and soft skills, and indicates the need to investigate enablers factors for knowledge creation and sharing; and Worker engagement, which consider communicational, cultural and trust-related aspects for worker's development. This paper explores the I4.0 implementation and indicate concerns involving workers and the technologies adoption, which can provide insights and assist researchers in future Operations Management practices and related researches.","PeriodicalId":146264,"journal":{"name":"Gestão & Produção","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130501797","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.1590/1806-9649-2022v29e1922
Gabriela Dall’Agnol, J. K. Sagawa, Roberto Fernandes Tavares Neto
Abstract: Advancements in production technologies and materials have facilitated the use of additive manufacturing (AM) (i.e., 3D printing) in the large-scale production of finished products with high level of customization, simplification of the factory floor, and fast delivery. Production sequencing is a well-established topic in this research area; however, its application to an AM environment suffers from specific issues that are yet to be explored. This paper presents a systematic literature review for mapping the state-of-the-art production sequencing methods in AM and for discussing the content of 26 articles published in magazines between 2017–2020. The main mathematical models, algorithms adopted for their solution, and main characteristics of computational experiments performed in these articles are identified; the results indicate that some characteristics of the problem can still be included in these models, such as the possibility of outsourcing and technology restrictions, which are yet to be explored in the literature. Further, authors observed the need for more robust computational experiments to better evaluate the proposed solutions.
{"title":"Scheduling for Additive Manufacturing: a literature review","authors":"Gabriela Dall’Agnol, J. K. Sagawa, Roberto Fernandes Tavares Neto","doi":"10.1590/1806-9649-2022v29e1922","DOIUrl":"https://doi.org/10.1590/1806-9649-2022v29e1922","url":null,"abstract":"Abstract: Advancements in production technologies and materials have facilitated the use of additive manufacturing (AM) (i.e., 3D printing) in the large-scale production of finished products with high level of customization, simplification of the factory floor, and fast delivery. Production sequencing is a well-established topic in this research area; however, its application to an AM environment suffers from specific issues that are yet to be explored. This paper presents a systematic literature review for mapping the state-of-the-art production sequencing methods in AM and for discussing the content of 26 articles published in magazines between 2017–2020. The main mathematical models, algorithms adopted for their solution, and main characteristics of computational experiments performed in these articles are identified; the results indicate that some characteristics of the problem can still be included in these models, such as the possibility of outsourcing and technology restrictions, which are yet to be explored in the literature. Further, authors observed the need for more robust computational experiments to better evaluate the proposed solutions.","PeriodicalId":146264,"journal":{"name":"Gestão & Produção","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115744076","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.1590/1806-9649-2022v29e5809
L. Trento, Michele de Souza, Leandro Zvirtes, G. Pereira
Abstract In recent decades, the service strategy has increased in importance both in scientific research and on the agendas of industrial organizations. Service can help such companies to diversify their offerings, avoiding commoditization as well as increasing operational results. However, failures in the service process may generate significant negative impacts on these organizations. This case study investigates the drivers that contributed to the failure in service delivery in the industrial organization. Such drivers ultimately bankrupted the profit organization. The article uses the qualitative exploratory methodology and a unique, in-depth case study. The findings reveal the following drivers: assigning the operation to inexperienced employees; lack of ability to implement organizational needs; organizational alignment; and knowledge of how to disable complex operations. Also, the study contributes to the construction of a framework to mitigate such drivers. The framework is structured in service operation, decommissioning, and implementation.
{"title":"Failure-to-service may lead industrial business to bankruptcy: drivers and ways to mitigate them","authors":"L. Trento, Michele de Souza, Leandro Zvirtes, G. Pereira","doi":"10.1590/1806-9649-2022v29e5809","DOIUrl":"https://doi.org/10.1590/1806-9649-2022v29e5809","url":null,"abstract":"Abstract In recent decades, the service strategy has increased in importance both in scientific research and on the agendas of industrial organizations. Service can help such companies to diversify their offerings, avoiding commoditization as well as increasing operational results. However, failures in the service process may generate significant negative impacts on these organizations. This case study investigates the drivers that contributed to the failure in service delivery in the industrial organization. Such drivers ultimately bankrupted the profit organization. The article uses the qualitative exploratory methodology and a unique, in-depth case study. The findings reveal the following drivers: assigning the operation to inexperienced employees; lack of ability to implement organizational needs; organizational alignment; and knowledge of how to disable complex operations. Also, the study contributes to the construction of a framework to mitigate such drivers. The framework is structured in service operation, decommissioning, and implementation.","PeriodicalId":146264,"journal":{"name":"Gestão & Produção","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129240881","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.1590/1806-9649-2022v29e4421
Rodrigo Luiz Gigante, A. Azevedo
Abstract This work uses a simulation model to analyze the use of ambulances present in emergency medical services (SAMUs) in relation to the schedule of beginning work shifts and the time patients wait in relation to shift start times. For the development of the model, information was collected from studies present in the literature and applied government recommendations for ambulances by inhabitant. The model was executed for different amounts of effective calls per day to analyze system congestion and the impact of changing shift start times on waiting times. The results demonstrate that the system has congestion with 25 effective calls per day, and shifts started at 8 am and 11 am have a shorter average waiting for patients for care. These results validate that the change in the start time of shifts improves system performance without increasing costs.
{"title":"Study of the impact of the start time of work shift on the efficiency of an emergency system through a simulation model of discrete events","authors":"Rodrigo Luiz Gigante, A. Azevedo","doi":"10.1590/1806-9649-2022v29e4421","DOIUrl":"https://doi.org/10.1590/1806-9649-2022v29e4421","url":null,"abstract":"Abstract This work uses a simulation model to analyze the use of ambulances present in emergency medical services (SAMUs) in relation to the schedule of beginning work shifts and the time patients wait in relation to shift start times. For the development of the model, information was collected from studies present in the literature and applied government recommendations for ambulances by inhabitant. The model was executed for different amounts of effective calls per day to analyze system congestion and the impact of changing shift start times on waiting times. The results demonstrate that the system has congestion with 25 effective calls per day, and shifts started at 8 am and 11 am have a shorter average waiting for patients for care. These results validate that the change in the start time of shifts improves system performance without increasing costs.","PeriodicalId":146264,"journal":{"name":"Gestão & Produção","volume":"2156 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130038472","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.1590/1806-9649-2022v29e0821
Juliana Maria Savio Bernardo, G. H. Mendes, F. Lizarelli, M. Roscani
Abstract: Patient experience (PE) has been associated with patients' perception of care services, organizational culture, and interactions experienced by patients. This article aims to characterize the process of measuring adult PE in general hospitals. Therefore, a scoping review (Scoping Review) in a sample of 51 empirical articles dealing with the assessment of PE was analyzed. The results show the predominance of quantitative PE measurement methods. HCAHPS is the most used instrument to evaluate PE. It was also possible to identify the attributes and dimensions (independent variables) considered in the PE measurement. In this case, the relational aspects between patients and health professionals have received great attention in the PE. Measures such as patient experience, satisfaction, quality, and loyalty have been used as PE outcomes (dependent variables). The article contributes to understanding the operationalization and measurement of PE by emphasizing the attributes and dimensions that have been considered in PE measurement, which can be useful for researchers and healthcare professionals interested in evaluating and identifying discrepancies in healthcare services.
{"title":"Instruments to measure patient experience in hospitals: a scoping review","authors":"Juliana Maria Savio Bernardo, G. H. Mendes, F. Lizarelli, M. Roscani","doi":"10.1590/1806-9649-2022v29e0821","DOIUrl":"https://doi.org/10.1590/1806-9649-2022v29e0821","url":null,"abstract":"Abstract: Patient experience (PE) has been associated with patients' perception of care services, organizational culture, and interactions experienced by patients. This article aims to characterize the process of measuring adult PE in general hospitals. Therefore, a scoping review (Scoping Review) in a sample of 51 empirical articles dealing with the assessment of PE was analyzed. The results show the predominance of quantitative PE measurement methods. HCAHPS is the most used instrument to evaluate PE. It was also possible to identify the attributes and dimensions (independent variables) considered in the PE measurement. In this case, the relational aspects between patients and health professionals have received great attention in the PE. Measures such as patient experience, satisfaction, quality, and loyalty have been used as PE outcomes (dependent variables). The article contributes to understanding the operationalization and measurement of PE by emphasizing the attributes and dimensions that have been considered in PE measurement, which can be useful for researchers and healthcare professionals interested in evaluating and identifying discrepancies in healthcare services.","PeriodicalId":146264,"journal":{"name":"Gestão & Produção","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133696100","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.1590/1806-9649-2022v29e4322
Ayrton Benedito Gaia do Couto, L. Rangel
Abstract: The present study aims to map the sustainability and performance evaluation models for energy companies regarding their qualitative and quantitative aspects of corporate governance. This research was carried out through a systematic literature review and the establishment of connections between the issues raised and general aspects of corporate governance, vis-à-vis the sustainable development matter. Aspects of corporate governance, such as gender diversity in the creation of boards of directors and directors in companies, is relevant in view of the UN Sustainable Development Goals, as well as the ISO 26000 standard, regarding guidelines on corporate social responsibility. As an innovation in this mapping, a summary of the main qualitative and quantitative aspects of corporate governance is carried out using the clustering technique and co-occurrence map, mining and text analysis, compared to sustainability and performance evaluation models for energy companies. At the end, gaps in these models are pointed out referring to national and international organizations and studies regarding intersectoral principles, practices and tools of corporate governance; opportunities for improvement are also pointed out.
{"title":"Corporate governance aspects in sustainability and performance assessment models for energy companies: a systematic review of the literature","authors":"Ayrton Benedito Gaia do Couto, L. Rangel","doi":"10.1590/1806-9649-2022v29e4322","DOIUrl":"https://doi.org/10.1590/1806-9649-2022v29e4322","url":null,"abstract":"Abstract: The present study aims to map the sustainability and performance evaluation models for energy companies regarding their qualitative and quantitative aspects of corporate governance. This research was carried out through a systematic literature review and the establishment of connections between the issues raised and general aspects of corporate governance, vis-à-vis the sustainable development matter. Aspects of corporate governance, such as gender diversity in the creation of boards of directors and directors in companies, is relevant in view of the UN Sustainable Development Goals, as well as the ISO 26000 standard, regarding guidelines on corporate social responsibility. As an innovation in this mapping, a summary of the main qualitative and quantitative aspects of corporate governance is carried out using the clustering technique and co-occurrence map, mining and text analysis, compared to sustainability and performance evaluation models for energy companies. At the end, gaps in these models are pointed out referring to national and international organizations and studies regarding intersectoral principles, practices and tools of corporate governance; opportunities for improvement are also pointed out.","PeriodicalId":146264,"journal":{"name":"Gestão & Produção","volume":"74 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132679711","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.1590/1806-9649-2022v29e117
M. Novitasari, Dian Agustia
Abstract: The application of social performance as a material for transparency of environmental commitments that drive company management on company performance is required in the firms. The purpose of this study was to look into the environmental implications of the firms, specifically the role of green supply chain management and green innovation as intervening variables between the effect of corporate social responsibility on firm performance and the effect of corporate social responsibility on firm performance. This was quantitative research. PROPER companies listed on the Indonesia Stock Exchange from 2015 to 2019 comprised the study's population. Research data was obtained from the Indonesia Stock Exchange. The sample for this study was 211 companies' annual reports and financial statements, which were obtained through a purposive sampling method. STATA was used to test the data in this study. The results of the study revealed that green supply chain management mediated the effect of corporate social responsibility on firm performance, green innovation did not mediate the effect of corporate social responsibility on firm performance, green supply chain management mediated the effect of corporate social responsibility on green innovation, and green innovation did not mediate the effect of green supply chain management on firm performance.
{"title":"The role of green supply chain management and green innovation in the effect of corporate social responsibility on firm performance","authors":"M. Novitasari, Dian Agustia","doi":"10.1590/1806-9649-2022v29e117","DOIUrl":"https://doi.org/10.1590/1806-9649-2022v29e117","url":null,"abstract":"Abstract: The application of social performance as a material for transparency of environmental commitments that drive company management on company performance is required in the firms. The purpose of this study was to look into the environmental implications of the firms, specifically the role of green supply chain management and green innovation as intervening variables between the effect of corporate social responsibility on firm performance and the effect of corporate social responsibility on firm performance. This was quantitative research. PROPER companies listed on the Indonesia Stock Exchange from 2015 to 2019 comprised the study's population. Research data was obtained from the Indonesia Stock Exchange. The sample for this study was 211 companies' annual reports and financial statements, which were obtained through a purposive sampling method. STATA was used to test the data in this study. The results of the study revealed that green supply chain management mediated the effect of corporate social responsibility on firm performance, green innovation did not mediate the effect of corporate social responsibility on firm performance, green supply chain management mediated the effect of corporate social responsibility on green innovation, and green innovation did not mediate the effect of green supply chain management on firm performance.","PeriodicalId":146264,"journal":{"name":"Gestão & Produção","volume":"52 1S1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115553636","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.1590/1806-9649-2022v29e6822
M. Machado, A. Costa, Felipe Domingues Simões
Abstract The RMAX chart was proposed to control the covariance matrix of two quality characteristics. The monitoring statistic of the RMAX chart is the maximum of two standardized sample ranges from bivariate observations of two quality characteristics. In this article, we investigate the performance of two synthetic RMAX charts. The first synthetic chart signals when a second point, not far from the first one, falls beyond the warning limit. The second synthetic chart additionally signals when a sample point falls beyond the control limit. The performance of the synthetic RMAX charts are compared with the performance of the standard RMAX chart and the generalized variance S chart. The proposed charts are the best option to detect moderate or even small changes in the covariance matrix. To detect large changes in the covariance matrix, additional run rules are not necessary.
{"title":"Monitoring bivariate processes with synthetic control charts based on sample ranges","authors":"M. Machado, A. Costa, Felipe Domingues Simões","doi":"10.1590/1806-9649-2022v29e6822","DOIUrl":"https://doi.org/10.1590/1806-9649-2022v29e6822","url":null,"abstract":"Abstract The RMAX chart was proposed to control the covariance matrix of two quality characteristics. The monitoring statistic of the RMAX chart is the maximum of two standardized sample ranges from bivariate observations of two quality characteristics. In this article, we investigate the performance of two synthetic RMAX charts. The first synthetic chart signals when a second point, not far from the first one, falls beyond the warning limit. The second synthetic chart additionally signals when a sample point falls beyond the control limit. The performance of the synthetic RMAX charts are compared with the performance of the standard RMAX chart and the generalized variance S chart. The proposed charts are the best option to detect moderate or even small changes in the covariance matrix. To detect large changes in the covariance matrix, additional run rules are not necessary.","PeriodicalId":146264,"journal":{"name":"Gestão & Produção","volume":"81 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116037621","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.1590/1806-9649-2022v29e12122
Mário Joel Ramos Júnior, D. L. Medeiros, E. S. Almeida
Abstract This study aims to analyze the energy and environmental performance of the manufacture of two models of wind turbine blades for a 300 MW wind farm. Material flow analysis (MFA) was used to prepare the mass balance, while life cycle assessment (LCA), based on ISO-14044, was used to evaluate three impact categories, considering sensitivity analysis to evaluate the replacement of wind turbine blade materials. Results showed that the manufacturing of wind turbine blades causes a 10% loss of material impregnated with fiberglass and epoxy resin. Fiberglass was the input with the highest contribution to water consumption, energy consumption, and the carbon footprint. The sensitivity analysis showed that, for the offshore scenario of higher capacity factor and longer lifetime, the carbon footprint contribution per electricity to be produced was 0.214 kg CO2eq/GJ, while for the onshore scenario of lower capacity factor and shorter lifetime, it was 1.37 kg CO2eq/GJ. When using jute fiber grown without irrigation as a substitute input for fiberglass, the reduction was 38% (onshore) and 42% (offshore) in water consumption, 18% (onshore and offshore) in energy consumption, and 24% (onshore) and 25% (offshore) in carbon footprint. The onshore model had a larger impact in all the categories evaluated than the offshore model. Therefore, the use of unirrigated jute fiber allows gains in energy and environmental performance.
摘要本研究旨在分析某300mw风电场两种型号风机叶片的能源和环境性能。采用物料流分析(MFA)编制质量平衡，采用基于ISO-14044的生命周期评估(LCA)对三种影响类别进行评估，并考虑敏感性分析对风机叶片材料的更换进行评估。结果表明，在风力涡轮机叶片的制造过程中，玻璃纤维和环氧树脂浸渍材料的损耗为10%。玻璃纤维是对水消耗、能源消耗和碳足迹贡献最大的投入。敏感性分析表明，对于容量因子较高、寿命较长的海上发电情景，每电碳足迹贡献为0.214 kg CO2eq/GJ，而对于容量因子较低、寿命较短的陆上发电情景，每电碳足迹贡献为1.37 kg CO2eq/GJ。当使用未经灌溉的黄麻纤维作为玻璃纤维的替代品时，用水量减少38%(陆上)和42%(海上)，能源消耗减少18%(陆上和海上)，碳足迹减少24%(陆上)和25%(海上)。陆上模型在所有评估类别中都比海上模型有更大的影响。因此，使用未经灌溉的黄麻纤维可以获得能源和环境性能。
{"title":"Blade manufacturing for onshore and offshore wind farms: the energy and environmental performance for a case study in Brazil","authors":"Mário Joel Ramos Júnior, D. L. Medeiros, E. S. Almeida","doi":"10.1590/1806-9649-2022v29e12122","DOIUrl":"https://doi.org/10.1590/1806-9649-2022v29e12122","url":null,"abstract":"Abstract This study aims to analyze the energy and environmental performance of the manufacture of two models of wind turbine blades for a 300 MW wind farm. Material flow analysis (MFA) was used to prepare the mass balance, while life cycle assessment (LCA), based on ISO-14044, was used to evaluate three impact categories, considering sensitivity analysis to evaluate the replacement of wind turbine blade materials. Results showed that the manufacturing of wind turbine blades causes a 10% loss of material impregnated with fiberglass and epoxy resin. Fiberglass was the input with the highest contribution to water consumption, energy consumption, and the carbon footprint. The sensitivity analysis showed that, for the offshore scenario of higher capacity factor and longer lifetime, the carbon footprint contribution per electricity to be produced was 0.214 kg CO2eq/GJ, while for the onshore scenario of lower capacity factor and shorter lifetime, it was 1.37 kg CO2eq/GJ. When using jute fiber grown without irrigation as a substitute input for fiberglass, the reduction was 38% (onshore) and 42% (offshore) in water consumption, 18% (onshore and offshore) in energy consumption, and 24% (onshore) and 25% (offshore) in carbon footprint. The onshore model had a larger impact in all the categories evaluated than the offshore model. Therefore, the use of unirrigated jute fiber allows gains in energy and environmental performance.","PeriodicalId":146264,"journal":{"name":"Gestão & Produção","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121840032","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.1590/1806-9649-2022v29e9722
Renata M. S. Santos, P. Figueiredo, Felipe Tumenas Marques
Abstract: The Agile approach is focused on individuals and customer satisfaction, based on the dynamic and streamlined work of a team that is capable of adapting, and adapting the project to changing scenarios and demands. However, amidst the COVID-19 pandemic, Agile teams accustomed to in-person communication have encountered the challenges of working from home. The main objective of this research is to analyze the challenges generated by the pandemic context, and the consequent social distance, for the development of software projects that use Agile approaches within a large state-owned company and identify the effect it had on the course and results of the projects. The research was qualitative in nature and had two exploratory diagnostic stages. The findings indicate that there were no negative impacts of relevance on project deliveries. On the one hand, results indicated losses in socialization, in spontaneous exchanges of knowledge, and in interaction among teams, as well as a demand for greater engagement of professionals. Additionally, limitations were revealed for more complex discussions and knowledge management. The study highlights solutions that were found and/or suggested for many challenges, contributing to the literature on best practices for the Agile approach, and is focused on the unprecedented context of the COVID-19 pandemic. Our findings can contribute to other companies with a similar profile that work with Agile projects, besides contributing to building a dialogue between the academic and business environments.
{"title":"Challenges to agile software project management practices in the context of the COVID-19 pandemic","authors":"Renata M. S. Santos, P. Figueiredo, Felipe Tumenas Marques","doi":"10.1590/1806-9649-2022v29e9722","DOIUrl":"https://doi.org/10.1590/1806-9649-2022v29e9722","url":null,"abstract":"Abstract: The Agile approach is focused on individuals and customer satisfaction, based on the dynamic and streamlined work of a team that is capable of adapting, and adapting the project to changing scenarios and demands. However, amidst the COVID-19 pandemic, Agile teams accustomed to in-person communication have encountered the challenges of working from home. The main objective of this research is to analyze the challenges generated by the pandemic context, and the consequent social distance, for the development of software projects that use Agile approaches within a large state-owned company and identify the effect it had on the course and results of the projects. The research was qualitative in nature and had two exploratory diagnostic stages. The findings indicate that there were no negative impacts of relevance on project deliveries. On the one hand, results indicated losses in socialization, in spontaneous exchanges of knowledge, and in interaction among teams, as well as a demand for greater engagement of professionals. Additionally, limitations were revealed for more complex discussions and knowledge management. The study highlights solutions that were found and/or suggested for many challenges, contributing to the literature on best practices for the Agile approach, and is focused on the unprecedented context of the COVID-19 pandemic. Our findings can contribute to other companies with a similar profile that work with Agile projects, besides contributing to building a dialogue between the academic and business environments.","PeriodicalId":146264,"journal":{"name":"Gestão & Produção","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132594313","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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