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Article
Publication date: 18 April 2024

Stefano Costa, Eugenio Costamagna and Paolo Di Barba

A novel method for modelling permanent magnets is investigated based on numerical approximations with rational functions. This study aims to introduce the AAA algorithm and other…

Abstract

Purpose

A novel method for modelling permanent magnets is investigated based on numerical approximations with rational functions. This study aims to introduce the AAA algorithm and other recently developed, cutting-edge mathematical tools, which provide outstandingly fast and accurate numerical computation of potentials and vector fields.

Design/methodology/approach

First, the AAA algorithm is briefly introduced along with its main variants and other advanced mathematical tools involved in the modelling. Then, the analysis of a circular Halbach array with a one-pole pair is carried out by means of the AAA-least squares method, focusing on vector potential and flux density in the bore and validating results by means of classic finite element software. Finally, the investigation is completed by a finite difference analysis.

Findings

AAA methods for field analysis prove to be strikingly fast and accurate. Results are in excellent agreement with those provided by the finite element model, and the very good agreement with those from finite differences suggests future improvements. They are also easy programming; the MATLAB code is less than 200 lines. This indicates they can provide an effective tool for rapid analysis.

Research limitations/implications

AAA methods in magnetostatics are novel, but their extension to analogous physical problems seems straightforward. Being a meshless method, it is unlikely that local non-linearities can be considered. An aspect of particular interest, left for future research, is the capability of handling inhomogeneous domains, i.e. solving general interface problems.

Originality/value

The authors use cutting-edge mathematical tools for the modelling of complex physical objects in magnetostatics.

Details

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

Keywords

Article
Publication date: 19 October 2023

Hadjaissa Bensoltane and Zoubida Belli

This paper aims to present a novel multi-objective version of the Gorilla Troops optimizer (GTO), based on crowding distance, to achieve the optimal design of a brushless direct…

Abstract

Purpose

This paper aims to present a novel multi-objective version of the Gorilla Troops optimizer (GTO), based on crowding distance, to achieve the optimal design of a brushless direct current motor.

Design/methodology/approach

In the proposed algorithm, the crowding distance technique was integrated into the GTO to perform the leader selection and also for the external archive refinement from extra non-dominated solutions. Furthermore, with a view to improving the diversity of non-dominated solutions in the external archive, mutation operator was used. For constrained problems, an efficient strategy was adopted. The proposed algorithm is referred to as CD-MOGTO.

Findings

To validate the effectiveness of the proposed approach, it was initially tested on three constrained multi-objective problems; thereafter, it was applied to optimize the design variables of brushless direct current motor to concurrently fulfill six inequality constraints, maximize efficiency and minimize total mass.

Originality/value

The results revealed the high potential of the proposed algorithm over different recognized algorithms in solving constrained multi-objective issues and the brushless direct current motors.

Details

COMPEL - The international journal for computation and mathematics in electrical and electronic engineering , vol. 42 no. 6
Type: Research Article
ISSN: 0332-1649

Keywords

Content available
Book part
Publication date: 14 December 2023

Abstract

Details

Fashion and Tourism
Type: Book
ISBN: 978-1-80262-976-7

Article
Publication date: 7 February 2024

Borja López-Alonso, Pablo Briz, Hector Sarnago, José M. Burdio and Oscar Lucia

This paper aims to study the feasibility of proposed method to focus the electroporation ablation by mean of multi-output multi-electrode system.

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Abstract

Purpose

This paper aims to study the feasibility of proposed method to focus the electroporation ablation by mean of multi-output multi-electrode system.

Design/methodology/approach

The proposed method has been developed based on a previously designed electroporation system, which has the capabilities to modify the electric field distribution in real time, and to estimate the impedance distribution. Taking into consideration the features of the system and biological tissues, the problem has been addressed in three phases: modeling, control system design and simulation testing. In the first phase, a finite element analysis model has been proposed to reproduce the electric field distribution within the hepatic tissue, based on the characteristics of the electroporation system. Then, a control strategy has been proposed with the goal of ensuring complete ablation while minimizing the affected volume of healthy tissue. Finally, to check the feasibility of the proposal, several representative cases have been simulated, and the results have been compared with those obtained by a traditional system.

Findings

The proposed method achieves the proposed goal, as part of a complex electroporation system designed to improve the targeting, effectiveness and control of electroporation treatments and serve to demonstrate the feasibility of developing new electroporation systems capable of adapting to changes in the preplanning of the treatment in real-time.

Originality/value

The work presents a thorough study of control method to multi-output multi-electrode electroporation system by mean of a rigorous numerical simulation.

Details

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

Keywords

Book part
Publication date: 14 December 2023

Sandra Biondo

This chapter investigates the importance of fashion houses in the progressive redefinition of tourism geography within a metropolitan context. The purpose is to highlight how…

Abstract

This chapter investigates the importance of fashion houses in the progressive redefinition of tourism geography within a metropolitan context. The purpose is to highlight how these brands manage both to integrate marginal urban areas into the tourist circuits and to co-construct market-oriented heritage policies. Through the case of Fendi Roma and the EUR district (Rome, Italy), this chapter explores their degrees of involvement in the processes of requalification and estheticization of peripheral urban areas. The study found that the involvement of the luxury brand in Roman urban governance is symptomatic of evolutions in the political strategies pursued by public actors in their relations with private investors.

Book part
Publication date: 14 December 2023

Sandra Biondo

In contemporary cities, private actors, such as luxury fashion houses, increasingly participate in projects, affirming themselves as relevant players in urban transformation…

Abstract

In contemporary cities, private actors, such as luxury fashion houses, increasingly participate in projects, affirming themselves as relevant players in urban transformation. Based on the case of “SouPra” district (Milan, Italy), this chapter focuses on the effects of the opening of a fashionable artistic venue on the tourism development. It explores the promotional actions implemented by tourism entrepreneurs after the opening of the Prada Foundation. The analysis leads to two main results: actors in tourism exploit the urban brand conveyed by Prada, which becomes an integral part of the city branding. Fashion houses also act as marketing devices, producing new urban narratives that influence both the tourist and the real estate market.

Article
Publication date: 24 January 2024

Álvaro Nicolás-Agustín, Daniel Jiménez-Jiménez, Francisco Maeso Fernandez and Christian Di Prima

This study presents a model for assessing the effects of employee ICT training on organizations’ results. It also introduces digital transformation as a mediator between the two…

Abstract

Purpose

This study presents a model for assessing the effects of employee ICT training on organizations’ results. It also introduces digital transformation as a mediator between the two concepts and studies the role of organizational commitment and human capital in terms of digital transformation.

Design/methodology/approach

Surveys were completed by the CEOs of 184 Spanish companies, and their responses were analyzed with Partial Least Squares.

Findings

The results empirically analyze the proposed theoretical model and highlight the fact that human capital and organizational commitment partially mediate the link between ICT training and digital transformation. Furthermore, there is a direct relationship between ICT training and company performance.

Practical implications

Directors and managers should invest more resources in the human capital of their company through ICT training. In fact, it can improve organizational commitment, encouraging employees to adopt innovative behaviors, thus allowing for the necessary digital transformation.

Originality/value

Despite heavy theoretical emphasis on the study of the conditions necessary for the digital transformation of companies, few studies have empirically analyzed the effects of adopting certain practices for its implementation. This paper focuses on analyzing the effect of ICT training, which is configured as a tool capable of improving staff knowledge and increasing employee commitment. This is essential for adopting organizational change such as digital transformation.

Details

European Journal of Innovation Management, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 1460-1060

Keywords

Article
Publication date: 22 January 2024

Jasmina Berbegal-Mirabent, Dolors Gil-Doménech and Alba Manresa

This study addresses the challenge of integrating entrepreneurial competences development into the traditionally structured engineering curriculum, recognizing its potential…

Abstract

Purpose

This study addresses the challenge of integrating entrepreneurial competences development into the traditionally structured engineering curriculum, recognizing its potential contribution to job creation. Specifically, this study proposes a course design that intersects project management and entrepreneurial disciplines, adopting a challenge-based learning approach.

Design/methodology/approach

Considering a list of common features that entrepreneurs and engineers—in the role of project managers—should excel at, and building upon the principles of experiential learning, this study proposes and describes a course design that is expected to help engineering students develop entrepreneurial competences. Through a series of assessment instruments and descriptive statistics, the study evaluates its implementation in a pilot test applied in a Project Management course at a Spanish university.

Findings

The results demonstrate a significant improvement in students' entrepreneurial competences after completing the course. Noteworthy variations in receptiveness to skill development among different personality profiles are observed. Gender differences are minimal, with the exception of women exhibiting heightened self-perception in the autonomy dimension.

Originality/value

This study explores the common features shared by two often-disconnected disciplines, namely engineering and entrepreneurship. It suggests that integrating both perspectives through a challenge-based course design can enhance entrepreneurial competences among engineering students without compromising the specific knowledge gained from engineering programs. Engaging students in such pedagogical experiences not only fosters entrepreneurial competences but also contributes to their professional and personal growth.

Details

Education + Training, vol. 66 no. 1
Type: Research Article
ISSN: 0040-0912

Keywords

Book part
Publication date: 14 December 2023

Gianluigi Di Giangirolamo

This chapter explores the evolution of public and private intervention in the fashion sector in France from the end of World War II to the mid-1960s, highlighting the first…

Abstract

This chapter explores the evolution of public and private intervention in the fashion sector in France from the end of World War II to the mid-1960s, highlighting the first connections in the relationship with tourism, a link between the two that is increasingly consolidated today and in which the mutual influence between them is becoming more relevant. For this reason, a historiographical reconstruction of the initiatives undertaken in Paris for the promotion and organization of the fashion sector is proposed. The chapter discusses the main aspects at work which shape the interconnection between fashion and tourism.

Book part
Publication date: 14 December 2023

Mario Paris

Luxury fashion brands have started differentiating their investment strategies and enlarging their sectors of activity, for instance, entering tourism. The overlay between…

Abstract

Luxury fashion brands have started differentiating their investment strategies and enlarging their sectors of activity, for instance, entering tourism. The overlay between traditional behaviors and innovative strategies has left a mark on the cities and neighborhoods. This chapter explores the spatial distribution of luxury tourism infrastructure in Milan. This transition does not affect only preeminent locations, such as monumental squares and high streets, but also places traditionally excluded from the “luxury circuits.” The location of 5-star hotels and premium tourism facilities in Milan (Michelin restaurants and spas) differ from the general tourism infrastructure. The study identifies polarization in the touristic offer and a parallel influence in the real estate market.

Details

Fashion and Tourism
Type: Book
ISBN: 978-1-80262-976-7

Keywords

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