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Article
Publication date: 8 October 2018

Ammar Abdi, Youcef Ouazir, Georges Barakat and Yacine Amara

This work aims to study a new design of linear permanent magnet transverse flux induction heating devices of nonmagnetic parallelepipedic workpiece. In these topologies, the…

Abstract

Purpose

This work aims to study a new design of linear permanent magnet transverse flux induction heating devices of nonmagnetic parallelepipedic workpiece. In these topologies, the permanent magnet inductor produces a static magnetic field, and the workpiece to be heated is subjected to a linear movement. To study the magnetothermal process, a new analytical coupling method between the magnetic and thermal phenomena is developed. This analytical model described in this study takes into account the variation of the physical properties of the heated workpiece. The analytical results are compared with good agreement to those issued from finite elements simulations, as well as those issued from measurements on an actual prototype.

Design/methodology/approach

The research methodology is based on analytical development of coupled problem, including the electromagnetic and thermal boundary problems. A strongly coupled magneto-thermal analytical model is developed; the time dependent magnetic problem is first solved by using the separation of variables method to evaluate the induced currents in the nonmagnetic plate and the resulting power density loss distribution. The plate temperature profile is then obtained, thanks to strong involvement of this magnetic model in a new analytical thermal model based on a synergy of separation of variables method and Green’s function transient regime analysis method.

Findings

The results show that an efficient transient magneto-thermal analytical model was developed allowing fast analysis of permanent magnet induction heater for deep heating of parallelepipedic workpieces. Developed model allows also fast and precise simulations of nonlinear and transient magneto-thermal phenomena for different types of permanent magnet induction heating devices.

Practical implications

The developed magneto-thermal analytical model can be used for fast designing of permanent magnet linear induction heating devices for moving parallelepipedic nonmagnetic workpiece.

Originality/value

A new analytical coupled model, including the electromagnetic and transient thermal boundary problem with additional algebraic equations and taking into account the nonlinearity, has been developed. The developed model accuracy was validated with a permanent magnet linear induction heating device. Developed coupled analytical model allows fast analysis and designing of such permanent magnet linear induction heating devices.

Details

COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, vol. 37 no. 5
Type: Research Article
ISSN: 0332-1649

Keywords

Article
Publication date: 1 June 2020

Ammar Abdi, Youcef Ouazir, Georges Barakat and Yacine Amara

This paper aims to develop a new quasi-three dimensional (3D) analytical model devoted to the study of nonlinear transient magneto-thermal coupled problems in permanent magnet…

Abstract

Purpose

This paper aims to develop a new quasi-three dimensional (3D) analytical model devoted to the study of nonlinear transient magneto-thermal coupled problems in permanent magnet (PM) transverse flux induction heating device (TFIHD).

Design/methodology/approach

The presented work is based on analytical development of strongly coupled problem, including electromagnetic and thermal boundary problems. The electromagnetic problem is first solved by using the separation variables method to evaluate the induced currents in the nonmagnetic plate and the resulting power density loss distribution. The plate temperature profile is then obtained thanks to strong involvement of this magnetic model in a new analytical thermal model combining the separation of variables method and the Green’s functions transient regime analysis method. The coupled model is then used in a simulation procedure of the magneto-thermal process allowing taking into account the workpiece electrothermal nonlinear properties. The developed coupled model is validated by computing the performances of the studied PM TFIHD and comparing them to those obtained by finite element simulations.

Finding

An efficient transient quasi-3D magneto-thermal analytical model is developed allowing rapid analysis of PM induction heating for core heating of parallelepiped parts. The developed model also allows fast and accurate simulations of nonlinear and transient three dimensional (3D) magneto-thermal phenomena for planar induction heaters.

Research limitations implications

The developed quasi-3D magneto-thermal analytical model is limited to design induction heating devices of planar structure with PM inductors.

Originality/value

A new transient quasi-3D magneto-thermal analytical model accounts for non-linearity and edge effect and helps to fast study and fast design of linear permanent magnet induction heating device.

Details

COMPEL - The international journal for computation and mathematics in electrical and electronic engineering , vol. 39 no. 5
Type: Research Article
ISSN: 0332-1649

Keywords

Book part
Publication date: 12 January 2021

Dalal Alrubaishi, Helen Haugh, Paul Robson, Rachel Doern and William J. Wales

This study investigates the impact of socioemotional wealth (SEW) on family firm entrepreneurial orientation (EO) in Saudi Arabia, and the moderating effect of generational…

Abstract

This study investigates the impact of socioemotional wealth (SEW) on family firm entrepreneurial orientation (EO) in Saudi Arabia, and the moderating effect of generational involvement on this relationship. Our data set comprises 241 privately, wholly owned family firms. We examine EO as a strategic orientation expressed in terms of both firm behavior and how managers approach risk-taking attitudinally. Our study finds that SEW is positively related to firms’ entrepreneurial behavior, but not managerial attitudes toward risk-taking. However, the positive effects of SEW on firms’ entrepreneurial behavior diminish as the number of generations involved in the family business increases. The broader implications for enabling entrepreneurship within Arab transforming economies adhering to strong cultural tribalistic norms are discussed.

Details

Entrepreneurial Orientation: Epistemological, Theoretical, and Empirical Perspectives
Type: Book
ISBN: 978-1-83867-572-1

Keywords

Article
Publication date: 13 February 2023

Mahmoud Ramadan Barakat, Nicoleta Tipi and Jialin Snow Wu

This research aims to provide a conceptual framework with the scope to assist in establishing sustainable supply chain clusters (SCCs) by providing an instrument for organisations…

Abstract

Purpose

This research aims to provide a conceptual framework with the scope to assist in establishing sustainable supply chain clusters (SCCs) by providing an instrument for organisations to enhance the three sustainability dimensions in a dynamic environment.

Design/methodology/approach

This research proposes a conceptual framework to enhance sustainability and organisational performance through three theoretical lenses: the system theory, extended resource-based view and the dynamic capabilities (DCs) theory. This approach is carried out through a comprehensive review of the existing literature on SCCs.

Findings

Four main propositions are formulated and demonstrated using the developed framework, which expands the discussion about SCCs and their key characteristics in a dynamic environment. This is particularly relevant as it allows empirical testing of the theories in an SCC context.

Research limitations/implications

It can be noted that more extensive research is needed to further understand the issues faced in establishing sustainable clusters. Drawing on the theoretical lenses to establish the framework helps to enhance the understanding and operational capabilities of sustainable SCCs during and after disruptions, such as the global disruption created by COVID-19.

Practical implications

This research paves the way to help organisations improve their adaptability to the dynamic business environment by emphasizing the importance of clustering and linking it to sustainability through DCs to establish a sustainable cluster.

Originality/value

This research aims to guide organisations' use of SCCs as tools to enhance sustainability in a dynamic environment, given that the relationship amongst supply chain cluster design characteristics (SCCDCs), DCs and sustainability remains unexplored. The combination of the three theoretical lenses in developing the proposed framework will assist in further understanding the applicability of these theories when they are considered together.

Details

Management Decision, vol. 61 no. 3
Type: Research Article
ISSN: 0025-1747

Keywords

Book part
Publication date: 29 May 2018

Katherine Pratt Ewing

Purpose – This chapter examines the problem of belonging for Muslims in the United States in a political environment where Muslims are increasingly represented as a threatening…

Abstract

Purpose – This chapter examines the problem of belonging for Muslims in the United States in a political environment where Muslims are increasingly represented as a threatening ‘other’ by conservative politicians and right-wing media. The goal is to demonstrate how an emotionally charged event, the murder of three middle class Muslim students in Chapel Hill, North Carolina, in 2015, was taken up by the media in ways that reflected sharply contested political agendas and constituted divergent stories and biographies of belonging and stigmatization for the victims, their families and the broader Muslim community.

Approach – The research draws on a wide range of media representations of the murder, including local, national and international news sources and social networking sites. The analysis is based on close readings of this range of stories.

Social Implications – The analysis demonstrates that this murder drew widespread attention in the Muslim community because these particular victims readily became representative of a Muslim ‘model minority’. Despite the ambivalence associated with belonging on such terms, the families and Muslim community used the stories of these murder victims to speak out against negative stereotypes and to remind the American public of the dangers of inflammatory rhetoric.

Originality – The chapter takes an original approach to the problem of belonging by tracing in detail how a single event can generate divergent stories that mark their narrators as belonging in ways that are contested by others, vividly demonstrating the process of différance articulated by Derrida.

Details

Contested Belonging: Spaces, Practices, Biographies
Type: Book
ISBN: 978-1-78743-206-2

Keywords

Book part
Publication date: 28 November 2022

Marie Segares

Founders have significant influence over many domains within family businesses, and their impact on companies may be felt even after leadership succession. Founders have therefore…

Abstract

Founders have significant influence over many domains within family businesses, and their impact on companies may be felt even after leadership succession. Founders have therefore received much attention from scholars, policymakers, and entrepreneurship educators. This chapter characterizes the current literature on family business founders by identifying the topics explored and the range of methods and methodologies used in recent years to outline a research agenda for future study of founders of family businesses.

A scoping review was conducted to examine the extent and essence of contemporaneous research activity related to family business founders. Scoping reviews describe current research activity without evaluating individual studies and are effective in summarizing significant concerns and themes, identifying areas of deficiency, and establishing recommendations for future directions in research. This scoping review used elements of a rapid review due to resource restrictions and this chapter discusses efforts to mitigate the limitations introduced as a result.

After summarizing the current academic conversation about family business founders, opportunities for future research topics and methodological approaches to the study of founders of family businesses are introduced.

Open Access
Article
Publication date: 11 June 2019

Mohamed Othman Elkhosht

The purpose of this paper is to draw a map of the general features of epistemological and critical concerns in contemporary Islamic philosophy. This study will not be confined to…

6355

Abstract

Purpose

The purpose of this paper is to draw a map of the general features of epistemological and critical concerns in contemporary Islamic philosophy. This study will not be confined to the domain of academic philosophy or to those who are professionals in the field of philosophy.

Design/methodology/approach

The paper adopted the critical rational approach in dealing with contemporary Islamic philosophy in the Arab world. The scope will include scholars from different fields of epistemology who tried to present a “vision” of the attitude that should be adopted in facing the challenges of the age and the problems of the nation on the epistemological level or the political, economic and social levels.

Findings

There is a need for a philosophy of action and progress rather than a philosophy that is based on abstract ideas and theories and of words/rhetoric. The ethics required to accomplish this ought to identify the attributes of the citizen who can reach self-actualization through legitimate means based on a progress agenda with theoretical and philosophical foundations.

Research limitations/implications

Because a critical rational approach can be dealt with from different perspectives, this paper will adopt the classification of the principal intellectual trends: the reformist, secular and liberal.

Practical implications

This paper covers a long time span to determine whether the philosophical projects have been effective.

Originality/value

This paper, which criticizes the philosophic projects that are theoretically unsound and that do not address real social problems (like poverty), argues the need for a philosophy of progress and action. This will lead to devising an agenda that addresses the challenges the society is facing and to finding alternative and creative solutions resulting in development.

Details

Journal of Humanities and Applied Social Sciences, vol. 1 no. 1
Type: Research Article
ISSN: 2632-279X

Keywords

Article
Publication date: 5 September 2018

Chia-Chi Chang and Jung-Sung Hung

The purpose of this paper is to investigate the relationship between service recovery and relational selling behavior on trust and satisfaction in the banking industry…

1784

Abstract

Purpose

The purpose of this paper is to investigate the relationship between service recovery and relational selling behavior on trust and satisfaction in the banking industry. Specifically, the mediating role of trust and satisfaction on the relationship between service recovery, relational selling behavior and loyalty is empirically examined.

Design/methodology/approach

Hypotheses are developed based on the literature review. The conceptual model is tested using SEM on survey data collected from 560 customers of 12 banks in Taiwan, including local banks and foreign banks.

Findings

The model test results indicate that the influences of service recovery and relational selling behavior on trust and satisfaction are both significant. In addition, the influences of trust and satisfaction on loyalty are significant.

Practical implications

For bank managers, it is crucial to have well programs to identify service failures and handle recoveries efficiently and effectively. Furthermore, bank managers should place a high value on increasing salesperson’s customer-oriented behaviors to discern potential problems that customer concerns and provide suitable solutions that customer needs. By creating these better customer experiences, greater trust, satisfaction and loyalty can be yielded.

Originality/value

This study aims to provide a superior understanding of the relationship between service recovery, relational selling behavior, trust, satisfaction and loyalty in the banking industry. The research findings can contribute to forming targeted strategies and gaining competitive advantages for bank managers.

Details

International Journal of Bank Marketing, vol. 36 no. 7
Type: Research Article
ISSN: 0265-2323

Keywords

Article
Publication date: 1 January 1973

GEOFFREY B. ISHERWOOD and WAYNE K. HOY

The purpose of this study was to examine teachers' sense of powerlessness within two distinctive school organizational structures. The concept of teacher work values was employed…

Abstract

The purpose of this study was to examine teachers' sense of powerlessness within two distinctive school organizational structures. The concept of teacher work values was employed as an intervening variable in the primary relationship. Definite patterns of teacher sense of powerlessness were uncovered within Authoritarian and within Collegial school bureaucratic structures. In addition, a majority of teachers in Authoritarian schools experienced a greater sense of powerlessness than did their peers in Collegial schools.

Details

Journal of Educational Administration, vol. 11 no. 1
Type: Research Article
ISSN: 0957-8234

Article
Publication date: 31 May 2021

George E. Halkos and Stylianos N. Nomikos

This paper reviews and analyzes the corporate social responsibility (CSR) legal framework worldwide, discussing the new CSR definition which comprises legal features and debates…

2063

Abstract

Purpose

This paper reviews and analyzes the corporate social responsibility (CSR) legal framework worldwide, discussing the new CSR definition which comprises legal features and debates for and against CSR validation. The work contributes in linking CSR and corporate laws by considering the legislative approaches worldwide.

Design/methodology/approach

CSR has mostly a voluntary character whilst it entails a normative condition attributable to social and market demands. A detailed examination of CSR worldwide is presented paying attention to international CSR legal framework in Europe, USA, Asia, Africa and Australia. Arguments for and against CSR legalization are studied.

Findings

The authors show that more regulations have to be launched mainly concerning the consequences of corporations' activities impacting the environment. Governments should promote CSR and relative encouragements focusing on a win-win state of affairs for companies.

Research limitations/implications

It seems that in the future, more regulations will be established particularly concerning the effect of companies' activities toward the environment. Little research has been conducted on the legal aspect of CSR; therefore, future research should focus on this, providing new insights. Analysis in sector level will be helpful and instructive.

Practical implications

Many further disputes have to be worked out to set up and support arrangements which will direct and observe conversions into sustainable, habitable and low pollution.

Originality/value

The authors examine and discuss in details CSR schemes around the world concentrating to the international CSR legal framework in Europe, the USA, Asia, Africa and Australia. At the same time, the authors study the arguments for and against CSR legalization.

Details

Management of Environmental Quality: An International Journal, vol. 32 no. 4
Type: Research Article
ISSN: 1477-7835

Keywords

1 – 10 of 71