Fernando Juliani and Otávio José de Oliveira
The purpose of this paper is to present relationship between operation and management practices analyzing the results achieved by both public organizations prone to deploy Lean…
Abstract
Purpose
The purpose of this paper is to present relationship between operation and management practices analyzing the results achieved by both public organizations prone to deploy Lean Six Sigma (LSS) and public organizations that have already implemented the method. The goal is to support the start of method deployment by public managers and the creation of more efficient and effective processes in public organizations.
Design/methodology/approach
An analysis of synergies between findings in the multiple case study carried out in Brazilian public organizations from health and education sectors and successful implementations found in the LSS literature is made.
Findings
The fact that this research comprised organizations from different segments allowed good practices and difficulties to be identified in a unique way, adding more value to the research carried out and increasing the potential of support to the public manager. In addition, it was possible to map the most mentioned benefits of LSS deployment in both health and education sectors and link them to systematized LSS practices.
Research limitations/implications
The presenting research should initiate a scientific discussion on public sector areas more prone to LSS and guide researchers in the development of case studies aimed at the application of this method in public organizations in general.
Practical implications
This paper can assist public managers to become aware of the potential of the organization they manage in the adoption of LSS principles and practices enabling a better quality of services provided to citizens.
Originality/value
The finding that public health organizations are more likely to implement LSS principles and practices when compared to public organizations from other segments can guide more in-depth studies that justify why some organizations would be better able to implement the LSS method and others would face more difficulties in a hypothetical deployment.
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Everaldo de Barros, Fernando Juliani and Leandro Ribeiro de Camargo
The experimental modal analysis requires good knowledge of various engineering fields, such as mechanical vibrations, transducers used in vibration measurement, transducers and…
Abstract
Purpose
The experimental modal analysis requires good knowledge of various engineering fields, such as mechanical vibrations, transducers used in vibration measurement, transducers and system calibration methods, data acquisition systems, digital signal processing and system identification. Test facilities constitute a key factor for improving the quality of the estimated modal model. This paper aims to describe the experimental facilities at the Institute of Aeronautics and Space (IAE) Modal Testing Laboratory in terms of associated instrumentation and data acquisition system, metrological aspects and computational resources. The discussion is completed with a practical application showing a ground vibration testing (GVT) of an unmanned aerial vehicle (UAV).
Design/methodology/approach
The experimental facilities were evaluated in a typical GVT, using three shakers in both vertical and horizontal excitations and 88 response measurement points. The global excitation method was used to excite all desired modes. The reliability of the experimental modal model was validated by an auto modal assurance criterion matrix for the measured modes of the structure.
Findings
The experimental facilities were successfully used for validating the dynamical characteristics of the UAV under testing.
Originality/value
The modal test facilities of the Modal Testing Laboratory at the IAE, the main research center of the Brazilian Air Force, are described in this paper.
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Fabio Francisco da Silva, Lukas Daniel Filser, Fernando Juliani and Otávio José de Oliveira
Lean Six Sigma (LSS) is a continuous improvement methodology used to increase the efficiency and effectiveness of processes. Although there are several articles published, only…
Abstract
Purpose
Lean Six Sigma (LSS) is a continuous improvement methodology used to increase the efficiency and effectiveness of processes. Although there are several articles published, only two have analyzed the literature from a bibliometrics perspective. The purpose of this paper is to analyze the LSS literature by bibliometrics, identifying its state of the art, scientific gaps and research trends.
Design/methodology/approach
Articles published up to 2016 in the database Scopus were investigated to identify the most significant articles, authors, journals, institutions and countries based on citation counting as well as the most frequent keywords and subject areas on LSS. Articles published in 2014, 2015 and 2016 were analyzed to point out scientific gaps and to identify eight main research trends on LSS.
Findings
The research trends are: “LSS implementation”, “Healthcare”, “LSS tools”, “Human factors”, “Expansion of results”, “SME”, “LSS combined with other methodologies” and “Education”. The research outcomes also point out the most significant articles, authors, journals, institutions and countries in LSS literature.
Practical implications
This research contributes to develop the state of the art of LSS and helps professionals as well as researchers to identify which issues new studies should address.
Originality/value
The performance of the literature is measured based on the number of citations and not on the number of published papers, and the bibliometric analysis covers the highest number of articles so far (319 articles). Besides, the identification of the main research trends on LSS is exclusively based on the most recent studies.
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Caio Senna do Amaral, Omar Varanda Cotaet, Fabiana Aparecida Santos Bochetti and Fernando Tobal Berssaneti
This paper aims to assess the combined application of Lean Six Sigma and agile approach for optimizing operational processes of order management in the seed industry.
Abstract
Purpose
This paper aims to assess the combined application of Lean Six Sigma and agile approach for optimizing operational processes of order management in the seed industry.
Design/methodology/approach
This study is based on an action research case conducted in a multinational Brazilian Seeds Business enterprise. This paper reports on the application of the Lean Six Sigma define-measure-analyze-improve-control (DMAIC), using the steps of DMAIC cycle as a sprint of agile approach. The methodology involves outlining an operational process through sequential activities, each associated with a cycle time, equivalent number of full-time employee and number of orders. Performance metrics for the order management process include continuous monitoring of these activities, using monitoring systems, management software and manual records to collect data.
Findings
The findings reveal significant improvements in critical-to-quality measures related to customer care, planning and logistics. The implementation of the DMAIC methodology and agile approach resulted in tangible enhancements in cycle time, defects per opportunities and overall process efficiency. The results allow the classification of defects, the identification of their causes and, consequently, the presentation of a control plan to mitigate these problems. Furthermore, the study identifies key causes of operational issues and proposes a prioritized action plan.
Research limitations/implications
The limitation of this research is its restriction to a single case. The external validity of the results and generalizability to other organizational contexts may be compromised due to the lack of case diversity. The fact that the research focuses on a single company, even if it is a large multinational company, may limit the applicability of the findings to different sectors, sizes and organizational structures, which may be an opportunity for future research.
Practical implications
The findings suggest that the integrated approach of DMAIC and agile methodology contributes to a culture of continuous improvement and operational efficiency. The systematic collection and analysis of data enhance evidence-based decision-making, providing a robust foundation for strategic and operational choices. Moreover, the successful integration of methodologies presents a comprehensive framework applicable to diverse organizational challenges.
Originality/value
The paper applies action research to understand and address operational challenges, emphasizing practical solutions. The integration of DMAIC and agile enhances the depth of process analysis, enabling the identification, implementation and control of improvements. This study offers a significant contribution both to practitioners, providing practical implications, and to academics, enriching the Lean Six Sigma and agile body of knowledge.
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Maria Isabel Arias, Fernando Serra, Luiz Guerrazzi and Manuel Portugal Ferreira
This paper aims to conduct a bibliometric study on e-government research, with special concern over finding bases on which electronic government studies are constructed.
Abstract
Purpose
This paper aims to conduct a bibliometric study on e-government research, with special concern over finding bases on which electronic government studies are constructed.
Design/methodology/approach
This paper is a bibliometric study using citation, co-citation and bibliometric coupling analysis, applied to 161 selected articles published in 37 top journals in public administration.
Findings
The paper presents existing knowledge on e-government research and provides a categorization in terms of research subfields. The 40 top-cited works were classified into three subfields of intellectual influence: models and evolution; implementation factors; and adoption constraints. In total, 63 works were classified into three subfields of mainstream research: adoption (contextual and technological factors); evolution status and implementation; and social capital. The paper presents gaps in research streams.
Research limitations/implications
Because of the chosen research approach, this study has limitations that are inherent to bibliometric studies, such as the selection of journals and keywords. This work helps e-government students and researchers to understand the mainstream research of the field, presents the references on each stream and, in addition, provides information to public policy makers. Findings from this study can contribute to theory building in e-government research.
Practical implications
This study may provide support to government institutions to assess the allocation of public resources for research.
Originality/value
The paper fulfils an identified need to examine the intellectual foundations and mainstream research in the field of e-government, unlike other reviews. The paper makes a methodological contribution by integrating co-citation and bibliographic coupling in mapping knowledge.
Objetivo
Realizar uma bibliometria sobre pesquisa em e-government, com especial preocupação em encontrar as bases sobre as quais estudos são construídos.
Projeto/metodologia
Bibliometria utilizando análise de citação, cocitação e pareamento bibliográfico, aplicado a 161 artigos selecionados publicados em 37 periódicos de ponta em administração pública.
Resultados
Apresentar o conhecimento existente sobre pesquisa em e-government e fornecer uma categorização de subcampos de pesquisa acadêmica. Os 40 trabalhos mais citados foram classificados em três subcampos: Modelos e Evolução, Fatores de Implementação e Restrições de Adoção. 63 trabalhos foram classificados em três subcampos: Adoção (Fatores Contextuais e Tecnológicos), Status de Evolução e Implementação, e Capital Social.
Limitações/implicações da pesquisa
Devido à abordagem de pesquisa escolhida, este estudo apresenta limitações inerentes aos estudos bibliométricos, como a seleção de periódicos e palavras-chave. Este trabalho auxilia estudantes e pesquisadores do e-government a entender as principais vertentes de pesquisas da área, apresenta as principais referências e, além disso, fornece subsídios aos formadores de políticas públicas. Os resultados deste estudo podem contribuir para a formação da teoria na pesquisa em e-government.
Implicações práticas
Este estudo pode fornecer suporte a instituições governamentais para avaliar a alocação de recursos públicos para pesquisa.
Originalidade/valor
O documento preenche lacuna identificada em examinar a base intelectual e a pesquisa predominante no campo do e-government. O artigo faz uma contribuição metodológica ao integrar cocitação e pareamento bibliográfico.
Palavras-chave - e-government, Administração pública, Estudo bibliométrico, Análise de cocitação, Pareamento bibliográfico
Tipo de artículo
Artículo de investigación
Objetivo
Realizar una bibliometria sobre la investigación del e-government, con especial preocupación por encontrar las bases sobre las cuales se construyen los estudios del e-government.
Diseño/metodología
Bibliométrica mediante citas, co-citas y análisis de emparejamiento bibliométrico, aplicado a 161 artículos seleccionados en las 37 revistas académicas centrales sobre administración pública.
Resultados
Presente el conocimiento existente sobre e-government y proporcione una categorización en términos de subcampos de investigación. Las 40 obras más citadas se clasificaron en tres subcampos: Modelos y Evolución, Factores de Implementación y Restricciones de Adopción. 63 trabajos se clasificaron en tres subcampos de investigación general: adopción (factores contextuales y tecnológicos), estado e implementación de la evolución y capital social. El artículo presenta lagunas en las corrientes de investigación.
Limitaciones/implicaciones para la investigación
Debido al enfoque de investigación elegido, este estudio tiene limitaciones inherentes a los trabajos bibliometricos, tales como la selección de revistas y palabras clave. Este trabajo ayuda a los estudiantes e investigadores de e-government a comprender la investigación en este campo, presenta las referencias en cada línea y, además, proporciona información a los responsables de la política pública. Los hallazgos de este estudio pueden contribuir a la construcción de teorías en la investigación del e-government.
Implicaciones prácticas
Este estudio puede brindar apoyo a las instituciones gubernamentales a la hora de evaluar la asignación de recursos públicos para la investigación.
Originalidad/valor
El documento cumple con una necesidad identificada de examinar los fundamentos intelectuales y la investigación general en el campo del e-government. El artículo hace una contribución metodológica al integrar la co-cita y el emparejamiento bibliográfico.
Palabras clave - E-government; Administración pública, Estudio bibliométrico, Análisis de co-citas, Pareamento bibliográfico.
Tipo de artigo
revisión de literatura
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Ana Carolina Ferreira Costa, Fernando Capelo Neto, Maximilian Espuny, Aglaé Baptista Torres da Rocha and Otávio José de Oliveira
Small and medium-sized enterprises (SMEs) are fundamental to the socioeconomic development of a country or region. They directly contribute to increasing employment generation and…
Abstract
Purpose
Small and medium-sized enterprises (SMEs) are fundamental to the socioeconomic development of a country or region. They directly contribute to increasing employment generation and improving income distribution. Despite the importance of SMEs, there are still opportunities for developing works that support and guide SMEs to use digital technologies, especially to digitalize their customer service. Therefore, this work aims to propose drivers containing recommendations for developing and improving the digitalization of customer service in SMEs.
Design/methodology/approach
This work uses a qualitative approach to systematize the main SMEs' characteristics and identify the boosting elements of the digitalization of customer service in the scientific literature. To this end, the authors conducted a content analysis of the most influential empirical and theoretical articles on the theme published from 2016 to 2021 in the Scopus database.
Findings
This work identified 38 boosting elements of the digitalization of customer service based on the scientific literature. These elements were grouped into six drivers for developing and improving the digitalization of customer service. The drivers contain recommendations that were adapted for SMEs according to their characteristics and based on the experience of the authors of this work.
Originality/value
This work contributes to promoting socioeconomic development, providing important solutions for managers and owners of SMEs to improve their customer service. The proposed drivers support and encourage the use of digital technologies for developing and improving customer service, overcoming the challenges of digitalization in these companies. Thus, SMEs will be able to increase the satisfaction of their customers and improve their competitiveness.
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Saman Esmaeilian, Dariush Mohamadi, Majid Esmaelian and Mostafa Ebrahimpour
This paper aims to minimize the total carbon emissions and costs and also maximize the total social benefits.
Abstract
Purpose
This paper aims to minimize the total carbon emissions and costs and also maximize the total social benefits.
Design/methodology/approach
The present study develops a mathematical model for a closed-loop supply chain network of perishable products so that considers the vital aspects of sustainability across the life cycle of the supply chain network. To evaluate carbon emissions, two different regulating policies are studied.
Findings
According to the obtained results, increasing the lifetime of the perishable products improves the incorporated objective function (IOF) in both the carbon cap-and-trade model and the model with a strict cap on carbon emission while the solving time increases in both models. Moreover, the computational efficiency of the carbon cap-and-trade model is higher than that of the model with a strict cap, but its value of the IOF is worse. Results indicate that efficient policies for carbon management will support planners to achieve sustainability in a cost-effectively manner.
Originality/value
This research proposes a mathematical model for the sustainable closed-loop supply chain of perishable products that applies the significant aspects of sustainability across the life cycle of the supply chain network. Regional economic value, regional development, unemployment rate and the number of job opportunities created in the regions are considered as the social dimension.
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The concept of a sustainable warehouse management system (WMS) is a relevant yet under-researched area within warehousing logistics. The purpose of this research is twofold…
Abstract
Purpose
The concept of a sustainable warehouse management system (WMS) is a relevant yet under-researched area within warehousing logistics. The purpose of this research is twofold: first, to review the literature on the topic of socially and environmentally sustainable practices; second, to lay the theoretical base for identifying social and environmental sustainability practices in warehousing operations that can serve as focus areas for WMS operational functions.
Design/methodology/approach
This research built knowledge on a systematic literature review and bibliometric analysis in Scopus Elsevier and Web of Science Core Collection databases. After comprehensively filtering English literature from 2016 to 2024, only 43 out of the initial 601 studies comprised relevant warehousing practices that can be incorporated into the scope of WMS activities.
Findings
As a result, retrieved practices were allocated to a specifically designed warehouse model within the main processes, equipment and resources. This model could serve as a baseline for incorporating 48 sustainable WMS practices. The prevailing share of practices focuses on environmental rather than social warehouse sustainability. WMS should adopt sustainable warehousing practices to reduce warehouses' carbon footprint, energy and resource consumption and improve working conditions in a warehouse.
Originality/value
There have not been any existing reviews on warehouses' social and environmental sustainability to synthesize knowledge and serve as a base for WMS sustainability. This research will contribute to developing more sustainable and environmentally responsible warehousing operations, ultimately benefiting society and the environment. By incorporating such practices into WMS, warehouse owners can ensure efforts toward social and environmental sustainability while still maintaining efficient operations.
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Antonella Estefania Bergesse, Alexis Rafael Velez, Liliana Cecilia Ryan and Valeria Nepote
The aim of this work was to evaluate the efficiency of subcritical conditions using different water–ethanol mixtures to recover antioxidant compounds from soybean seed coats…
Abstract
Purpose
The aim of this work was to evaluate the efficiency of subcritical conditions using different water–ethanol mixtures to recover antioxidant compounds from soybean seed coats (SSCs).
Design/methodology/approach
SSCs were subjected to high temperature and pressure conditions, using ethanol–water mixtures as extractive solvent, to obtain phenolic and flavonoid compounds with antioxidant activity. A mathematical model, namely one-site desorption kinetic model, was used to describe the extraction kinetics.
Findings
Temperature, solvent mass flow rate and solvent composition were studied, and the best extraction conditions were defined by a screening design. The maximum concentration of phenolics was obtained at 220 °C, 50% of ethanol and 2.5 g/min of solvent mass flow rate and a high antioxidant capacity toward different techniques was achieved. The one-site desorption kinetic model showed that before 30 min under optimal conditions, more than 90% of phenolics and flavonoids were recovered, a shorter extraction time than the commonly used at normal pressure and room temperature.
Originality/value
The seed coat is a major by-product of soybean processing, and it only markets as a low value ruminant feed. To date, there are no reports on the extract phenolics from SSCs by means of this methodology. The extraction technique described in this study provides a potential alternative for extraction of bioactive compounds from SSCs. This study contributes to adding value to this industrial waste and, ultimately, to optimize the postharvest production chain of soybean grains.
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Igor Gomes Vidigal, Mariana Pereira de Melo, Adriano Francisco Siqueira, Domingos Sávio Giordani, Érica Leonor Romão, Eduardo Ferro dos Santos and Ana Lucia Gabas Ferreira
This study aims to describe a bibliometric analysis of recent articles addressing the applications of e- noses with particular emphasis on those dealing with fuel-related…
Abstract
Purpose
This study aims to describe a bibliometric analysis of recent articles addressing the applications of e- noses with particular emphasis on those dealing with fuel-related products. Documents covering the general area of e-nose research and published between 1975 and 2021 were retrieved from the Web of Science database, and peer-reviewed articles were selected and appraised according to specific descriptors and criteria.
Design/methodology/approach
Analyses were performed by mapping the knowledge domain using the software tools VOSviewer and RStudio. It was possible to identify the countries, research organizations, authors and disciplines that were most prolific in the area, together with the most cited articles and the most frequent keywords. A total of 3,921 articles published in peer-reviewed journals were initially retrieved but only 47 (1.19%) described fuel-related e-nose applications with original articles published in indexed journals. However, this number was reduced to 38 (0.96%) articles strictly related to the target subject.
Findings
Rigorous appraisal of these documents yielded 22 articles that could be classified into two groups, those aimed at predicting the values of key parameters and those dealing with the discrimination of samples. Most of these 22 selected articles (68.2%) were published between 2017 and 2021, but little evidence was apparent of international collaboration between researchers and institutions currently working on this topic. The strategy of switching energy systems away from fossil fuels towards low-carbon renewable technologies that has been adopted by many countries will generate substantial research opportunities in the prediction, discrimination and quantification of volatiles in biofuels using e-nose.
Research limitations/implications
It is important to highlight that the greatest difficulty in using the e-nose is the interpretation of the data generated by the equipment; most studies have so far used the maximum value of the electrical resistance signal of each e-nose sensor as the only data provided by this sensor; however, from 2019 onwards, some works began to consider the entire electrical resistance curve as a data source, extracting more information from it.
Originality/value
This study opens a new and promising way for the effective use of e-nose as a fuel analysis instrument, as low-cost sensors can be developed for use with the new data analysis methodology, enabling the production of portable, cheaper and more reliable equipment.