Anderson Vicente Borille, Jefferson de Oliveira Gomes and Daniel Lopes
Flame-retardant plastics are used in critical applications, such as aircraft interior parts, when the occurrence of fire can lead to serious injury to people. However, there is a…
Abstract
Purpose
Flame-retardant plastics are used in critical applications, such as aircraft interior parts, when the occurrence of fire can lead to serious injury to people. However, there is a lack of related publications. The purpose of this study is to present experimental data regarding geometrical analysis, such as dimensional accuracy and surface roughness, tensile strength and elongation of parts manufactured with flame-retardant materials by additive manufacturing.
Design/methodology/approach
Two additive manufacturing processes, selective laser sintering (SLS) and fused deposition modeling (FDM), were selected to manufacture the parts to be evaluated. Each process used its respective polymer, that is polyamide with flame-retardant additive (PA) for SLS and polyphenylsulfone (PPSF) for FDM. The samples consist of tensile specimens and representative parts of different products. Tensile tests were performed using standard tensile test machines, and geometrical analyses were performed using coordinate measuring machine as well as surface roughness tester.
Findings
As each material can be, in commercial machines, produced by only one process, the material selection for final products has to consider the manufacturing process as well. In general, although the FDM/PPSF process provided specimens with the highest ultimate strength, because of its strong influence by the building direction, FDM/PPSF also provided the lowest strength. SLS/PA was able to provide average strength with less dependency on the build-up direction. The geometrical analysis showed that SLS/PA presents a much smoother surface, but FDM/PPSF presented slightly better dimensional accuracy.
Originality/value
There is still lack of publications on polymers with flame resistance or flame-retardant polymers. Thus, this paper brings new technical information about processing such materials.
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Gabriel Bertholdo Vargas, Jefferson de Oliveira Gomes and Rolando Vargas Vallejos
The purpose of this paper is to present a practical data-based framework for the prioritization of investment in manufacturing technologies, methods and tools, and to demonstrate…
Abstract
Purpose
The purpose of this paper is to present a practical data-based framework for the prioritization of investment in manufacturing technologies, methods and tools, and to demonstrate its applicability and practical relevance through two case studies of manufacturing firms of different industrial segments.
Design/methodology/approach
The proposed framework is based on network theory applied on technology adoption. For this, the database of Industry 4.0 maturity assessments of SENAI was used to develop data visualization tools named “Technology Networks”. Thus, this study is descriptive research with correlational design. Besides, the framework was applied in two companies and semi-structured interviews were carried out with domain experts.
Findings
The technology networks highlight the technological adoption patterns of six industrial segments, by considering the answers of 863 Brazilian companies. In general, less sophisticated technologies were positioned in the center of the networks, which facilitates the visualization of adoption paths. Moreover, the networks presented a well-balanced adoption scenario of Industry 4.0 related technologies and lean manufacturing methods and tools.
Research limitations/implications
Since the database was not built under an experimental design, it is not expected to make statistical inferences about the variables. Furthermore, the decision to use an available database prevented the editing or inclusion of technologies. Besides, it is estimated that the technology networks given have few years for obsolescence due to the fast pace of technological development.
Practical implications
The framework is a tool that may be used by practicing manufacturing managers and entrepreneurs for taking assertive decisions regarding the adoption of manufacturing technologies, methods and tools. The proposition of using network theory to support decision making on this topic may lead to further studies, developments and adaptations of the framework.
Originality/value
This paper addresses the topics of lean manufacturing and Industry 4.0 in an unprecedented way, by quantifying the adoption of its technologies, methods and tools and presenting it in network visualizations. The main value of this paper is the comprehensive framework that applies the technology networks for supporting decision making regarding technology adoption.
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Fábio Lotti Oliva, Bárbara Ilze Semensato, Daniela Buzzulini Prioste, Eric Jacques Lucien Winandy, Jefferson Luiz Bution, Marcelo Henrique Gomes Couto, Marco Antonio Bottacin, Maria Laura Ferranty Mac Lennan, Pedro Marins Freire Teberga, Ricardo Fernandes Santos, Sanjay Kumar Singh, Sidirley Fabiani da Silva and Silvye Ane Massaini
The purpose of this paper is to analyze the innovation process of organizations representing the main sectors of Brazilian economic activity.
Abstract
Purpose
The purpose of this paper is to analyze the innovation process of organizations representing the main sectors of Brazilian economic activity.
Design/methodology/approach
The literature review focuses on analyzing the innovation process characteristics regarding the innovation types. The authors carried out interviews with executives and managers in charge of innovation at the leading large companies in the respective sectors analyzed. The data analysis of this qualitative research was structured in three steps. The first step is the analysis of data collected for encoding, the second step, the summarization of the common points presented by the companies in each sector and, finally, the interpretation of these data, aided by triangulation from secondary data that support the analysis of the collected primary data.
Findings
The main contribution of this study is to characterize the innovation process of organizations representing the main sectors of the Brazilian economy, with a classification regarding the sectoral innovation standard.
Practical implications
The authors’ intent is that the paper can contribute with a comparative analysis among companies of the same sector and, subsequently, among companies of the different surveyed sectors. Thus, the characterization aims to present the companies’ innovation process and the comparative analysis aims to verify the innovation sectoral patterns. In addition, as implications for management practice, some strategies for better knowledge management in the organization are suggested for each type of innovation.
Originality/value
The main theoretical contribution focuses on the development of a conceptual model that structures the analyzed variables of the constructs “innovation process” and “innovation sectoral patterns”, allowing not only the characterization but also the comparative analysis of the representative organizations present in the sample.
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Fabio Lotti Oliva, Jefferson Luiz Bution, Andrei Carlos Torresani Paza, Ricardo Augusto Martins, Marcelo Albuquerque, Riccardo Savio and Massimiliano Farina Briamonte
This study relies on the lessons learned from the recent pandemic crisis to propose a conceptual framework for organizational crisis management and illustrate its application in…
Abstract
Purpose
This study relies on the lessons learned from the recent pandemic crisis to propose a conceptual framework for organizational crisis management and illustrate its application in an organization that effectively protected its competitive position during the crisis.
Design/methodology/approach
Building upon the resource-based view and the dynamic capability theoretical framework, we first conducted a systematic literature review that involves content and bibliographic analysis. Subsequently, we developed a conceptual crisis management framework and applied it to the case of Hyundai Motor Brazil.
Findings
The systematic literature review found innovation and knowledge management as prominent response mechanisms to the pandemic crisis whereas the case provided a better understanding on how these mechanisms contributed to crisis navigation.
Practical implications
Managers will find valuable insights into the importance of linking risk management and crisis management, and leveraging innovation and knowledge to enhance resilience, with straightforward operationalization for benchmark.
Originality/value
This paper is original for relating enterprise risk management, innovation and knowledge management to each phase of existing crisis management processes. It enriches the theoretical and practical debate on the dynamic capabilities’ perspective of risk and crisis management.
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Carlos Alberto Schuch Bork, Janaina Fracaro Souza Gonçalves and Jefferson Oliveira Gomes
This article aims to collect data on the aluminum alloy 7050-T7451 machinability used in the manufacturing of aeronautical structures, using the combination of the jatropha…
Abstract
Purpose
This article aims to collect data on the aluminum alloy 7050-T7451 machinability used in the manufacturing of aeronautical structures, using the combination of the jatropha vegetable-base soluble cutting oil in relation to the canola vegetal and semisynthetic mineral oils and the technique to apply cutting fluid by flood in relation to the Minimum Quantity Lubrication (MQL) in the milling process (HSM – high-speed machining).
Design/methodology/approach
It was observed that the jatropha vegetal cutting oil presented the best results in relation to requirements for lubrication, superficial mean roughness (index Ra) and shape errors in relation to the other oils in both the techniques to apply fluid which were tested. Comparing the application techniques, the jatropha vegetal oil offered an increase in the life span of the cutting tool, using the flood technique, exceeding in almost six times the machined length of the cutting tool in relation to the MQL technique in the same process conditions.
Findings
The Jatropha vegetable-base cutting oil, besides being produced from a renewable source, has inherent characteristics that can help attain a sustainable manufacturing, mainly with the use of the flood technique to apply cutting fluid in the aluminum alloy 7050-T7451 machining.
Originality/value
The Jatropha (vegetable) oil, in relation to its physicochemical properties, appeared to be the best one fit for being used in the machining of aluminum alloys 7050-T7451 because it did not interfere with any of the elements involved in the formation of intergranular corrosion and/or pitting, which are not allowed in the aeronautical production of parts. Jatropha (vegetable) cutting oil, besides being produced from a clean and renewable source, has the inherent characteristics that can help attain a sustainable manufacturing.
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Gabriela Gomes Mantovani and Jefferson Andronio Ramundo Staduto
The article aimed to identify and analyze the income differences across the income distribution between homosexuals and heterosexuals by occupational groups in Brazil.
Abstract
Purpose
The article aimed to identify and analyze the income differences across the income distribution between homosexuals and heterosexuals by occupational groups in Brazil.
Design/methodology/approach
PNAD-C microdata was used in two periods (2013–2015 and 2016 to 2019), highlighting the different economic, social and political contexts in Brazil. Recentered influence function and quantile income decomposition were estimated to verify the difference and income discrimination according to the guideline the worker’s sexuality.
Findings
For some cases homosexual workers earn more and in others, homosexuals earn less than heterosexuals. The differences in remuneration according to sexual orientation were smaller in positions that demand low qualification and competence. The quantile income decomposition between 2013 and 2015 revealed the positive effect of discrimination was the generator of income disparities between homosexuals and heterosexuals, with greater impact for the 10th and 90th quantiles and on groups that require small levels of complexity and education. Between 2016 and 2019, there was the presence of both effects, but the explained effect was the promoter of wage disparities in most occupational groups.
Research limitations/implications
Given the dataset, it was only possible to work with proxies of homosexual couples.
Originality/value
There has been little research linking the themes of discrimination based on sexual orientation and occupational groups, and so far, it does not exist similar in Latin America. This study found that sexual orientation influences remuneration according to the occupational group that the worker belongs to, affecting income and, consequently, occupational choice. This connection of issues will contribute to new insights into discrimination based on sexual orientation, as well as more effective public policies aimed at reducing discrimination against homosexuals.
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Fábio Lotti Oliva, Jefferson Luiz Bution, Flavia Gutierrez Motta, Germano Fenner, Brandon Randolph-Seng, Marco Papa and M. Muzamil Naqshbandi
The research objective was twofold: first, to propose a novel framework for composing an organization’s aggregate risk appetite, and second, to demonstrate the application of this…
Abstract
Purpose
The research objective was twofold: first, to propose a novel framework for composing an organization’s aggregate risk appetite, and second, to demonstrate the application of this framework in a suitable organization.
Design/methodology/approach
A conceptual framework for defining an organization’s aggregate risk appetite was developed based on relevant organizational theory and research through the lens of knowledge management. The organizational appetite for risk framework was subsequently implemented at the São Paulo State Technological Research Institute (IPT) using the design science research approach. Finally, the implementation was carefully examined in order to encourage future applications and to further refine the appetite for risk framework.
Findings
The composition and application of the proposed appetite for risk framework optimally identified the aggregated risk appetite of the complete test organization. Moreover, organizational differences between bottom-up tolerance and top-down appetite were revealed.
Practical implications
Our main practical contribution is a comprehensive procedure to conduct a risk assessment and achieve an organization-wide aggregate risk appetite through the lens of knowledge management.
Originality/value
Unlike past theory and research that take a strictly top-down approach to risk appetite, our framework integrates dispersed knowledge on risk-taking at various levels of the organization, thereby contributing to the underexplored role of bottom management in shaping aggregate risk appetite.
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Rui Augusto da Costa and Adriana Fumi Chim-Miki
This concluding chapter examines the footprint of coopetition within the tourism domain, drawing upon existing literature to present a comprehensive overview of its evolution to…
Abstract
This concluding chapter examines the footprint of coopetition within the tourism domain, drawing upon existing literature to present a comprehensive overview of its evolution to date. To achieve this, the authors conducted a literature review of 94 articles published on coopetition in tourism and hospitality, sourced from esteemed databases such as Scopus and Web of Science. Each article was meticulously categorised based on its thematic focus, geographical scope and the sample of respondents employed to elucidate the dynamics of coopetition. The findings underscore the concerted efforts of researchers to delineate the contours of coopetition within the tourism and hospitality sectors. Through diverse lenses and methodologies, these studies collectively contribute to the burgeoning discourse surrounding coopetition, illuminating its multifaceted implications and applications in different contexts. This chapter presents a systematic analysis that serves as a testament to the growing momentum behind the coopetition paradigm in tourism. It shows how researchers on coopetition are paving the road towards the coopetition paradigm in tourism and hospitality.
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Jefferson Marlon Monticelli, Paulo Fossatti, Louise de Quadros da Silva and Charlene Bitencourt Soster Luz
Innovation enables growth and helps address social challenges. This research aims to identify evidence that can characterize an innovative university based on its university…
Abstract
Purpose
Innovation enables growth and helps address social challenges. This research aims to identify evidence that can characterize an innovative university based on its university management. Thus, the authors define the following research problem: How to measure innovation in a Higher Education Institution (HEI) that intends to be innovative based on its university management?
Design/methodology/approach
To this end, the authors conducted a literature review, with a qualitative approach, as well as a case study with data collection through the documental analysis of research that was carried out with the community, namely: Undergraduate Students Profile survey, Reputation of the Institution and Innovation Octagon.
Findings
The authors noticed that the results presented by Innovation Octagon show an increase in most indexes, mainly Processes and People, followed by Leadership, Strategy, Relationships and Funding. However, there was a reduction in Structure and Culture.
Originality/value
The results point to the relevance of measuring innovation in the institution, mainly through the use of the Innovation Octagon. The longitudinal measurement of innovation in the institution enables the management of the HEI to constantly progress and develop in favor of the society’s demands for the training of competent professionals for their future professional reality.
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Daniel Modenesi de Andrade, Fernando Barros Jr, Fabio Yoshio Motoki and Matheus Oliveira da Silva
This paper aims to study the dynamics of bitcoin prices in Brazil, a large emerging economy with an unregulated bitcoin market.
Abstract
Purpose
This paper aims to study the dynamics of bitcoin prices in Brazil, a large emerging economy with an unregulated bitcoin market.
Design/methodology/approach
First, this study tests if the Law of One Price (LOOP) is valid for bitcoin prices in Brazil, conducting tests with data from three Brazilian exchanges. Next, this study documents bitcoin price dynamics in the short run by studying the price discovery mechanism in these exchanges. This study uses Information Share and Component Share, combining the two measures to obtain an Information Leadership Share (ILS) measure.
Findings
This study finds a common trend within bitcoin prices among a set of exchanges, with cointegration tests between the price series indicating that LOOP is valid in Brazilian markets in the long run. ILS indicated that, for closing prices, the most liquid exchange (Foxbit) leads discovery, whereas the least liquid (Local Bitcoin) lags, with Mercado Bitcoin in the middle both in terms of discovery and liquidity. Finally, this study provides evidence that the price variation in the market that leads price discovery can be used to construct an arbitrage in another exchange.
Originality/value
This research brings the first evidence of a price discovery mechanism for exchanges in Brazilian Reais. Although LOOP is valid in the long run, price leadership in bitcoin markets potentially create arbitrage opportunities in the short run. This study contributes to the growing literature of bitcoin prices with novel evidence from a large emerging economy.