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Open Access
Article
Publication date: 14 June 2021

Vennan Sibanda, Khumbulani Mpofu and John Trimble

In manufacturing, dedicated machine tools and flexible machine tools are failing to satisfy the ever-changing manufacturing demands of short life cycles and dynamic nature of…

2095

Abstract

Purpose

In manufacturing, dedicated machine tools and flexible machine tools are failing to satisfy the ever-changing manufacturing demands of short life cycles and dynamic nature of products. These machines are limited when new product designs are introduced. The solution lies in developing responsive machines that can be adjusted or be changed functionally when these change requirements arise. These machines are reconfigurable machines which are becoming the new focus, as they rapidly respond to product variety and volume changes. A sheet metal working machine known as a reconfigurable guillotine shear and bending press machine (RGS&BPM) has been developed. The purpose of this paper is to present a methodology, function-oriented design approach (FODA), which was developed for the design of the RGS&BPM.

Design/methodology/approach

The design of the machine is based on the six principles of reconfigurable manufacturing systems (RMSs), namely, modularity, scalability integrability, convertibility, diagnosability and customisability. The methodology seeks to optimise the design process of the RGS&BPM through a design of modules that make up the machine, enable its conversion and reconfiguration. The FODA is focussed on function identification to select the operational function required. Two main functions are recognised for the machine, these being cutting and bending; hence, the design revolves around these two and reconfigurability.

Findings

The developed design methodology was tested in the design of a prototype for the reconfigurable guillotine shear and bending press machine. The prototype is currently being manufactured and will be subjected to functional tests once completed. This paper is being presented not only to present the methodology by to show and highlight its practical applicability, as the prototype manufacturers have been enthusiastic about this new approach.

Research limitations/implications

The research was limited to the design methodology for the RGS&BPM, the machine which has been designed to completion using this methodology, with prototype being manufactured.

Practical implications

This study presents critical steps and considerations in the development of reconfigurable machines. The main thrust being to explore the best possibility of developing the machines with dual functionality that will assist in availing the technology to manufacturer. As the machine has been development, the success of the design can be directly attributed to the FODA methodology, among other contributing factors. It also highlights the significance of the principles of RMS in reconfigurable machine design.

Social implications

The RGS&BM machine is an answer for the small-to-medium enterprises (SMEs), as the machine replaces two machines with one, and the methodology ensures its affordable design. It contributes immensely to the machine availability by eliminating trial and error approaches.

Originality/value

This study presents a new approach to the design of reconfigurable dual machines using principles of RMS. As the targeted market is the SME, it is not limited to that as any entrepreneur may use the machine to their advantage. The design methodology presented contributes to the body of knowledge in dual reconfigurable machine tool design.

Details

Journal of Engineering, Design and Technology , vol. 19 no. 6
Type: Research Article
ISSN: 1726-0531

Keywords

Open Access
Article
Publication date: 22 February 2011

John E. Berg

Depression is a usual comorbidity in patients with Parkinson's disease. It has been known for more than 50 years that electroconvulsive treatment (ECT) has a positive effect on…

Abstract

Depression is a usual comorbidity in patients with Parkinson's disease. It has been known for more than 50 years that electroconvulsive treatment (ECT) has a positive effect on the muscular symptoms of Parkinson's disease. Many countries do not allow giving ECT for this indication. We have recently treated a resident patient in an acute psychiatric facility referred to the hospital with moderate depressive symptoms and strong suicidal ideation. Before and after a series of ECT he filled out the Beck Depression Inventory and the Antonovsky Sense of Coherence test. The scores before ECT were 20 and 2.69, respectively, and after 12 treatments 14 and 3.38. Both test results indicate improvement regarding level of depression and coping in life. The physiotherapists treating him observed that his rigidity was reduced and his gait improved. Muscular tonus was reduced and increased his tendency of falling as he had less tonus in muscles close to joints. Self help efficiency in daily tasks improved. He got cognitive impairment during and in the weeks after ECT. Electroconvulsive treatment should be offered to more patients with Parkinson disease and depression in order to lessen the burden of both depression and Parkinson symptoms.

Details

Mental Illness, vol. 3 no. 1
Type: Research Article
ISSN: 2036-7465

Keywords

Open Access
Article
Publication date: 5 April 2021

Vitor Koki da Costa Nogami and Andres Rodriguez Veloso

The purpose of this paper is to explore the different concepts of innovation in the subsistence marketplace from top-down and bottom-up approaches. This study analyzes the…

2113

Abstract

Purpose

The purpose of this paper is to explore the different concepts of innovation in the subsistence marketplace from top-down and bottom-up approaches. This study analyzes the literature on the theme and identified research gaps by constructing a framework based on approaches and innovation concepts, which can guide future research efforts. Additionally, this paper presents two case studies, which can improve the way innovation is developed and diffused in the subsistence marketplace.

Design/methodology/approach

Through a literature review, this study develops a framework by analyzing innovation concepts in the subsistence marketplace (i.e. base of the pyramid innovation, disruptive innovation, frugal innovation, reverse innovation and inclusive innovation) in light of subsistence marketplace approaches (top-down and bottom-up).

Findings

The analysis showed critical research gaps, especially a lack of studies involving disruptive and frugal innovations from a bottom-up approach. This paper also concludes that the top-down approach is more common than the bottom-up one. To fill these gaps, this study presents two business plans by illustrating disruptive innovation vs bottom-up approach and frugal innovation vs bottom-up approach.

Originality/value

The use of real business plans to illustrate proposals having an actual impact on subsistence marketplace regions sheds light on how to address these challenges. By doing so, this paper intends to fill the theoretical gap in disruptive and frugal innovations within a bottom-up approach to promote the development and diffusion of different types of innovation in the subsistence marketplace, and thus provide solutions to alleviate poverty.

Details

Innovation & Management Review, vol. 18 no. 1
Type: Research Article
ISSN: 2515-8961

Keywords

Open Access
Article
Publication date: 15 October 2017

NyashaM. GuramatunhuCooper and Linda M. Lyons

Leadership Studies education is a highly personal endeavor shaped by the personal experiences and philosophies of leadership educators. However, when course design collaboration…

Abstract

Leadership Studies education is a highly personal endeavor shaped by the personal experiences and philosophies of leadership educators. However, when course design collaboration opportunities are presented, teaching approaches and curriculum prioritization may be at odds because of distinct personal narratives. This article frames disagreement over course design as an unexpected yet useful tool for facilitating individual and collective examination of leadership educators’ narratives and how they inform teaching and curriculum priorities. Drawing from standpoint theory and positionality, this work emphasizes that questions about how and what to teach in a leadership course are influenced by life experiences of leadership educators.

Details

Journal of Leadership Education, vol. 16 no. 4
Type: Research Article
ISSN: 1552-9045

Open Access
Article
Publication date: 7 March 2023

Hammad Bin Azam Hashmi, Ward Ooms, Cosmina L. Voinea and Marjolein C.J. Caniëls

This paper aims to elucidate the relationship between entrepreneurial orientation, reverse innovation and international performance of emerging economy multinational enterprises…

1699

Abstract

Purpose

This paper aims to elucidate the relationship between entrepreneurial orientation, reverse innovation and international performance of emerging economy multinational enterprises (EMNEs).

Design/methodology/approach

The authors analyze archival data of Chinese limited companies between 2010 and 2016, including 11,230 firm-year observations about 1708 firms. In order to test the study’s mediation hypotheses, the authors apply an ordinary least square (OLS) regression.

Findings

The authors find evidence that the entrepreneurial orientation of EMNEs has a positive effect on reverse innovations. Furthermore, the authors find positive effects of reverse innovation on the international performance of EMNEs. This pattern of results suggests that the relationship between entrepreneurial orientation and international performance is partially mediated by reverse innovation.

Practical implications

The study’s findings help managers in EMNEs to promote reverse innovation by building and using their entrepreneurial orientation. It also helps them to set out and gauge the chances of success of their internationalization strategies. The findings also hold relevance for firms in developed economies as well, as they may understand which emerging economy competitors stand to threaten their positions.

Originality/value

The strategic role of reverse innovations – i.e. clean slate, super value and technologically advanced products originating from emerging markets – has generated considerable research attention. It is clear that reverse innovations impact the international performance of EMNEs. Yet how entrepreneurial orientation influences international performance is still underexplored. Thus, the current study clarifies the mechanism by examining and testing the mediating role of reverse innovation among the entrepreneurial orientation–international performance link.

Details

International Journal of Emerging Markets, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 1746-8809

Keywords

Open Access
Article
Publication date: 15 January 2022

Cameron C. Beatty and Amber Manning-Ouellette

Pre COVID-19 there were a growing number of opportunities for study abroad across higher education in the United States, (Rosch & Haber-Curran, 2013; Martinez, 2012). This paper…

Abstract

Pre COVID-19 there were a growing number of opportunities for study abroad across higher education in the United States, (Rosch & Haber-Curran, 2013; Martinez, 2012). This paper aims to examine phenomena surrounding outcomes of student abroad experiences while centering students’ leadership learning. Centering leadership learning as a framework, findings indicate participants in the study grew in the of areas of leadership efficacy and capacity through the short-term study abroad.

Details

Journal of Leadership Education, vol. 21 no. 1
Type: Research Article
ISSN: 1552-9045

Open Access
Article
Publication date: 25 September 2018

Ruwini Edirisinghe

The future construction site will be pervasive, context aware and embedded with intelligence. The purpose of this paper is to explore and define the concept of the digital skin of…

24616

Abstract

Purpose

The future construction site will be pervasive, context aware and embedded with intelligence. The purpose of this paper is to explore and define the concept of the digital skin of the future smart construction site.

Design/methodology/approach

The paper provides a systematic and hierarchical classification of 114 articles from both industry and academia on the digital skin concept and evaluates them. The hierarchical classification is based on application areas relevant to construction, such as augmented reality, building information model-based visualisation, labour tracking, supply chain tracking, safety management, mobile equipment tracking and schedule and progress monitoring. Evaluations of the research papers were conducted based on three pillars: validation of technological feasibility, onsite application and user acceptance testing.

Findings

Technologies learned about in the literature review enabled the envisaging of the pervasive construction site of the future. The paper presents scenarios for the future context-aware construction site, including the construction worker, construction procurement management and future real-time safety management systems.

Originality/value

Based on the gaps identified by the review in the body of knowledge and on a broader analysis of technology diffusion, the paper highlights the research challenges to be overcome in the advent of digital skin. The paper recommends that researchers follow a coherent process for smart technology design, development and implementation in order to achieve this vision for the construction industry.

Details

Engineering, Construction and Architectural Management, vol. 26 no. 2
Type: Research Article
ISSN: 0969-9988

Keywords

Open Access
Article
Publication date: 10 March 2022

Opeoluwa Israel Akinradewo, Clinton Ohis Aigbavboa, David John Edwards and Ayodeji Emmanuel Oke

Blockchain technology is one of the emerging innovative technologies making waves globally, and it has been adjudged to have the capability to transform businesses. With the…

2028

Abstract

Purpose

Blockchain technology is one of the emerging innovative technologies making waves globally, and it has been adjudged to have the capability to transform businesses. With the different capabilities of the technology, such as immutability of information and decentralisation of authority attributes, the built environment is slow in its adoption. This study aims to explore the barriers to the implementation of blockchain technology in the construction using a principal component analysis (PCA) approach.

Design/methodology/approach

This research took a post-positivist philosophical stance, which informed a quantitative research approach through a questionnaire survey. From the South African built environment and information technology sector, 79 respondents were drawn through a snowballing sampling technique. The built environment professionals include architect, construction project manager, construction manager, quantity surveyor and engineer. Retrieved data were screened and analysed by adopting the descriptive analysis and PCA while Cronbach alpha evaluated the reliability. Also, Kruskal–Wallis H non-parametric test was used to determine the differences in the opinion of the respondent groups.

Findings

The analysis revealed that all the identified barriers ranked above the average mean with lack of clarity, scalability risks and lack of skills or knowledge ranking top three. PCA clustered the identified barriers into three components: organisational barriers, social barriers and technological barriers.

Research limitations/implications

This study was carried out in the Gauteng province of South Africa, leaving out other provinces due to accessibility, cost and time constraints.

Practical implications

Built environment organisations need to be kept abreast of the capabilities of blockchain technology as the major barrier observed was the lack of clarity of blockchain technology. Also, the technological barriers identified from this study need to be addressed by information technology experts to give consumers the desired value for money in implementing blockchain technology for the built environment.

Originality/value

The blockchain technology capabilities are incomparable to any other invention thus far. Therefore, it is very important that the numerous stakeholders in the built environment be made aware of the blockchain technology capabilities while formulating a solution to the identified barriers. This will aid its implementation in the built environment and help the industry measure up with its counterparts.

Details

Journal of Engineering, Design and Technology, vol. 20 no. 4
Type: Research Article
ISSN: 1726-0531

Keywords

Open Access
Article
Publication date: 3 June 2024

Maira Babri

The purpose of this paper is to present how my positionality as a researcher aligned with the works of Latour in terms of methodological inspirations and allowed me to develop a…

Abstract

Purpose

The purpose of this paper is to present how my positionality as a researcher aligned with the works of Latour in terms of methodological inspirations and allowed me to develop a critical vantage point and simultaneously adopt a heterogeneously rather than hierarchically informed approach to ordering the world, which I argue serves as a basis for a more inclusive study of management systems.

Design/methodology/approach

I reflect on my own positionality as a researcher and share how my interpretation of Latour's ontology through some of his ideas and concepts, particularly symmetry, power, translation and agency, allowed me to incorporate and organize heterogeneous actors depicted in different empirical materials into space-time contexts and subsequently theorize organizing and management practices as agential, multiple and becoming.

Findings

A base in Latour’s ontology has equipped me with openness towards empirical settings, which I argue retains a democratic approach to theorization, i.e. theorization, which remains mindful of inadvertent assumptions about power, hierarchy or the taken for granted. This approach has also given me a form of personal resilience as a researcher.

Originality/value

The originality of this paper lies in presenting and developing the concept of method as democratizing. I argue that Latour’s approach to the empirical allows for at least two forms of active democratizing, one relating to the researcher as self and the other in how it incorporates the empirical actors into research, making possible the inclusivity of heterogeneity in analyses of organizations and organizing.

Details

Qualitative Research in Organizations and Management: An International Journal, vol. 19 no. 2
Type: Research Article
ISSN: 1746-5648

Keywords

Open Access
Article
Publication date: 21 July 2020

Prajowal Manandhar, Prashanth Reddy Marpu and Zeyar Aung

We make use of the Volunteered Geographic Information (VGI) data to extract the total extent of the roads using remote sensing images. VGI data is often provided only as vector…

1361

Abstract

We make use of the Volunteered Geographic Information (VGI) data to extract the total extent of the roads using remote sensing images. VGI data is often provided only as vector data represented by lines and not as full extent. Also, high geolocation accuracy is not guaranteed and it is common to observe misalignment with the target road segments by several pixels on the images. In this work, we use the prior information provided by the VGI and extract the full road extent even if there is significant mis-registration between the VGI and the image. The method consists of image segmentation and traversal of multiple agents along available VGI information. First, we perform image segmentation, and then we traverse through the fragmented road segments using autonomous agents to obtain a complete road map in a semi-automatic way once the seed-points are defined. The road center-line in the VGI guides the process and allows us to discover and extract the full extent of the road network based on the image data. The results demonstrate the validity and good performance of the proposed method for road extraction that reflects the actual road width despite the presence of disturbances such as shadows, cars and trees which shows the efficiency of the fusion of the VGI and satellite images.

Details

Applied Computing and Informatics, vol. 17 no. 1
Type: Research Article
ISSN: 2634-1964

Keywords

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