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Article
Publication date: 5 December 2023

Abdelazeem Hassan Shehata Atyia and Abdelrahman Mohamed Ghanim

The accurate modeling of magnetic hysteresis in electrical steels is important in several electrical and electronic applications. Numerical models have long been known that can…

Abstract

Purpose

The accurate modeling of magnetic hysteresis in electrical steels is important in several electrical and electronic applications. Numerical models have long been known that can correctly reproduce some typical behaviours of these magnetic materials. Among these, the model proposed by Jiles and Atherton must certainly be mentioned. This model is intuitive and fairly easy to implement and identify with relatively few experimental data. Also, for this reason, it has been extensively studied in different formulations. The developments and numerical tests made on this hysteresis model have indicated that it is able to accurately reproduce symmetrical cycles, especially the major loop, but often it fails to reproduce non-symmetrical cycles. This paper aims to show the positive aspects and highlight the defects of the different formulations in predicting the minor loops of electrical steels excited by non-sinusoidal currents.

Design/methodology/approach

The different formulations are applied to different electrical steels, and the data coming from the simulations are compared with those measured experimentally. The direct and inverse Jiles–Atherton models, including the introduction of the dissipative factor approach, are presented, and their limitations are proposed and validated using the measurements of three non-grain-oriented materials. Only the measured major loop is used to identify the parameters of the Jiles–Atherton model. Furthermore, the direct and inverse Jiles–Atherton models were used to simulate the minor loops as well as the hysteresis cycles with direct component (DC) bias excitation. Finally, the simulation results are discussed and compared to measurements for each study case.

Findings

The paper indicates that both the direct and the inverse Jiles–Atherton model formulations provide a good agreement with the experimental data for the major loop representation; nevertheless, both models can not accurately predict the minor loops even when the modification approaches proposed in the literature were implemented.

Originality/value

The Jiles–Atherton model and its modifications are widely discussed in the literature; however, some limitations of the model and its modification in the case of the distorted current waveform are not completely highlighted. Furthermore, this paper contains an original discussion on the accuracy of the prediction of minor loops from distorted current waveforms, including DC bias.

Details

COMPEL - The international journal for computation and mathematics in electrical and electronic engineering , vol. 43 no. 1
Type: Research Article
ISSN: 0332-1649

Keywords

Open Access
Article
Publication date: 2 November 2023

Margaret Fitzsimons, Teresa Hogan and Michael Thomas Hayden

Bootstrapping is a practitioner-based term adopted in entrepreneurship to describe the techniques employed in micro, small and medium-sized enterprises (MSMEs) to minimise the…

Abstract

Purpose

Bootstrapping is a practitioner-based term adopted in entrepreneurship to describe the techniques employed in micro, small and medium-sized enterprises (MSMEs) to minimise the need for external funding by securing resources at little or no cost and applying strategies to effectively use resources. Working capital management (WCM) is a term used in financial management to define a set of practices used to manage business resources, including cash management. This paper explores the overlap and divergence between these two disciplinary distinct concepts.

Design/methodology/approach

A dual methodology is employed. First, the usage of the two terms in prior literature is analysed and synthesised. Second, the study uses factor analysis to explore how bootstrapping practices described by owners of 167 established MSMEs relate to the components of WCM in financial management.

Findings

The factor analysis identifies two main bootstrapping practices employed by MSMEs: (1) delaying payments and owner-related bootstrapping and (2) customer-related bootstrapping. Delaying payments is an integral practice in trade payables management and customer-related bootstrapping includes practices that are integral to trade receivables management. Therefore, links between bootstrapping practices and WCM practices are firmly established.

Research limitations/implications

The study is not without limitations. Based on cross-sectional evidence for established firms in Ireland only, future studies could explore cross-country longitudinal panel data to fully examine life cycle and sectoral effects, as well as other external shocks (for example, COVID-19) on bootstrapping and WCM practices. This study does not explain why some factors (for example, joint utilisation and inventory management) are present in some bootstrapping studies and not in others; further case study research might help explain this. Finally, changes in the business environment facing start-ups and established enterprise, including increased digitalisation, online trading, self-employment, remote hub working and sustainability, offer new avenues for bootstrapping research.

Originality/value

This is the first study to comprehensively explore the conceptual and empirical links between bootstrapping and WCM. This study will enable researchers and practitioners in these two distinct disciplines to learn from each other. Accounting researchers and practitioners can broaden their understanding of how WCM “works” in MSME settings. Similarly, entrepreneurship researchers and practitioners can deepen their understanding of how bootstrapping can be adopted by businesses to manage resources effectively.

Details

Journal of Applied Accounting Research, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 0967-5426

Keywords

Book part
Publication date: 2 May 2024

Amanuel Elias

This chapter traces the origin of racism and reviews the historical and contemporary debates around race and racialisation in western thought. There are persistent disagreements…

Abstract

This chapter traces the origin of racism and reviews the historical and contemporary debates around race and racialisation in western thought. There are persistent disagreements surrounding the origin and nature of racism. Because of the evolution of racist ideas, behaviours and institutional practices and policies, there are various views about the meaning and analytical application of racism. This chapter explores how ideas of race – understood as innate and immutable human differences that can be classified and ranked hierarchically based on race – has emerged in western history and evolved over time. It examines how this has influenced social and political practices and associated policies across the evolution of modernity. The chapter specifically discusses the Atlantic slave trade and how it shaped the historical development of race and racism within the context of colonialism. It concludes with a discussion and critical review of some of the racist systems and policies which have been enforced across different multiracial countries.

Details

Racism and Anti-Racism Today
Type: Book
ISBN: 978-1-83753-512-5

Keywords

Article
Publication date: 5 October 2023

Daniel Read

In response to increasing competition for consumer attention, sport governing bodies have innovated short-format, action-oriented versions of traditional sports to attract new…

Abstract

Purpose

In response to increasing competition for consumer attention, sport governing bodies have innovated short-format, action-oriented versions of traditional sports to attract new fans. This article explores how sport governing bodies (SGBs) manage the need for innovations to both conform to existing stakeholder expectations whilst offering novel benefits in comparison to competition (i.e. legitimate distinctiveness).

Design/methodology/approach

Created by the English Cricket Board (ECB), The Hundred competition was used as a case study to explore the conformity-differentiation tension through a legitimacy lens using document and media analysis.

Findings

Seven themes were created to explain how the ECB managed legitimacy tensions: rule modification, team creation, scheduling, game-day experience, broadcasting, gender equity and sponsorship. In each theme, differentiation and conformity were traded-off by the ECB to prioritise pragmatic legitimacy with broadcasters and sponsors.

Practical implications

For sport management professionals, the Hundred demonstrates the commercial value of differentiating new sporting events from competitors via hybrid broadcasting partnerships, embedded gender equity and designing game-day experiences that attract hard-to-reach consumer demographics.

Originality/value

SGBs must trade-off legitimacy between sources when innovating to survive, and when faced with conflicting expectations, commercial imperatives determined whether to conform or differentiate.

Details

Sport, Business and Management: An International Journal, vol. 13 no. 6
Type: Research Article
ISSN: 2042-678X

Keywords

Article
Publication date: 18 January 2023

Ehsan Masoomi, Kurosh Rezaei-Moghaddam and Aurora Castro Teixeira

This paper aims to investigate the evolution, roots and influence of the rural entrepreneurship literature.

Abstract

Purpose

This paper aims to investigate the evolution, roots and influence of the rural entrepreneurship literature.

Design/methodology/approach

Using a bibliometric exercise, the analysis starts with investigation of studies on entrepreneurship and gathering all (772) articles on rural entrepreneurship (from 1981 to 2020) found in both Scopus and Web of Science up to 15 August 2020. Citation analysis of the references/citations of 755 articles are listed in the abstract database, generating a citation database involving 46,432 references/citations. This paper considers 635 (out of the 772) articles on rural entrepreneurship (i.e. articles cited in one or more studies), generating a database of 10,767 studies influenced by the rural entrepreneurship literature.

Findings

This study discovers that the relative importance of rural entrepreneurship within the entrepreneurship literature has increased in the last few years, but rural entrepreneurship remains a European concern; the most frequently addressed topics include growth and development, institutional frameworks and governance and rurality, with theory building being rather understudied. Most of the studies on rural entrepreneurship are empirical, involving mainly qualitative analyses and targeting high income countries; rural entrepreneurship is rooted in the fields of economics and entrepreneurship and is relatively self-referential.

Originality/value

This study provides a comprehensive and updated investigation of evolution of the rural entrepreneurship literature. The assessment of the literature’s scientific roots of rural entrepreneurship had not yet been tackled before. To the best of the author’s knowledge this study can be considered as the first effort for identifying the scientific influence of the rural entrepreneurship literature.

Details

Journal of Enterprising Communities: People and Places in the Global Economy, vol. 18 no. 2
Type: Research Article
ISSN: 1750-6204

Keywords

Book part
Publication date: 13 November 2023

Elaine Bass Jenks

This chapter honors the opportunity I have had to learn with David Maines over the past 35 years. I connect my research on communication and disability, specifically among…

Abstract

This chapter honors the opportunity I have had to learn with David Maines over the past 35 years. I connect my research on communication and disability, specifically among individuals who are blind and visually impaired, to Maines' discussion of narratives incorporating Rawlins' exploration of similarity and difference. I discuss narratives of disability as difference using three examples: A short story written by H. G. Wells; the American with Disabilities Act; and interviews conducted with elite blind goalball athletes. I conclude with 10 lessons learned about disability and difference including that the goal of my research is to help us all perceive disability as a difference that matters, but not as a difference that disables.

Details

Festschrift in Honor of David R. Maines
Type: Book
ISBN: 978-1-83753-486-9

Keywords

Abstract

Details

Fractal Leadership
Type: Book
ISBN: 978-1-83797-108-4

Article
Publication date: 14 December 2022

Ayush, Amit Gangotia and Biswabhusan Pradhan

This study acclaims the social entrepreneurship based on cow rearing experiential tourism in Himachal Pradesh. This study aims to illustrate the role of indigenous cows in the…

Abstract

Purpose

This study acclaims the social entrepreneurship based on cow rearing experiential tourism in Himachal Pradesh. This study aims to illustrate the role of indigenous cows in the Indian society, especially in the Northern Mountain regions by taking Kangra district of Himachal Pradesh as an exemplar. This study highlights the relevance of experiential tourism that elucidates on the basis of cow tourism pertaining to health, mental and spiritual rejuvenation. Lastly, the paper is an attempt to integrate social entrepreneurship and cow tourism highlighting the relevance of experiential economy in empowering the local community.

Design/methodology/approach

The case study elucidates on the whence of Swadeshi Kamdhenu Gaushala (SKG), an initiative of Mr Rishi Dogra and Mr Rajesh Dogra, their immaculate micro-management and its benefits to the local community. It highlights how SKG is uplifting the socio-economic standards of the local villagers and providing a distinctive learning experience of indigenous knowledge to visitors. This study is qualitative in nature that uses narrative analysis of secondary data to recognise the importance of indigenous Indian cows, and case study analysis of interviews of SKG proprietors to understand the micro-management, production of organic products and community engagement in their social entrepreneurship.

Findings

The SKG is not only helping the local community in their livelihood but also creating value and positioning to the place on the tourist map. This study sheds some light on the importance of cow products in sectors such as agriculture, green energy and for human health and nutrition. The study also crystallizes the challenges faced by the cow rearers, at last the paper sorted out the benefits of cow tourism and how it can result in community empowerment and development.

Originality/value

The case study on SKG helps us in understanding the importance of social entrepreneurs in community empowerment and also the intervention of tourism in the sector that can bring new and different vertical to the tourism industry with experiential learning of the tourist, which results in knowledge sharing about the benefits of Indian cows and helps in creating and placing such destinations on tourist maps. This study attempts towards contributing to the existing knowledge, highlighting the benefits of social entrepreneurship and cow tourism for the society in general and local community in particular.

Details

Journal of Enterprising Communities: People and Places in the Global Economy, vol. 17 no. 6
Type: Research Article
ISSN: 1750-6204

Keywords

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