In the modeling of transducers, especially magnetic transducers, hysteresis may affect performance. Hysteresis models have been improved greatly and are capable of modeling a…
Abstract
In the modeling of transducers, especially magnetic transducers, hysteresis may affect performance. Hysteresis models have been improved greatly and are capable of modeling a large variety of rate‐independent phenomena, and are capable of describing minor loops. Of these, the most useful are: the Preisach model, the play model, and the stop model. Coupling these purely magnetic models with other phenomena, such as magnetostriction, enhances the model’s usefulness for transducer applications. This paper will discuss the conditions under which these models may be inverted, and for the invertible media, a technique for inverting them.
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Edward Della Torre and Ermanno Cardelli
This paper aims to discuss the problems associated with using a new vector hysteresis model.
Abstract
Purpose
This paper aims to discuss the problems associated with using a new vector hysteresis model.
Design/methodology/approach
The implementation of this new model is independent of the coordinate system used, thus is more tractable mathematically. It is simpler to use than other models. It has the correct energy properties.
Findings
The model requires fewer variables to describe anisotropic media.
Research limitations/implications
The simplicity of the coordinated vector hysteresis model is only valid for ellipsoidally magnetizable media.
Practical implications
The design of vector hysteresis devices will be far more accurate using this model.
Originality/value
The elaboration of this model has not been presented before.
This chapter has aimed to indicate some new important emerging policy problems, which have characterised the Covid crisis in the European economy during 2020 and then the…
Abstract
This chapter has aimed to indicate some new important emerging policy problems, which have characterised the Covid crisis in the European economy during 2020 and then the bounce-back in 2021. The chapter has illustrated an economic theoretical framework focussed on innovation and structural changes, according to a Schumpeterian and evolutionary or neo-institutional approach, which seems more appropriate than the traditional neoclassical and macroeconomic models, as the basis for a ‘new industrial strategy’ in the European Union. The mainstream economic models are static and point-like, as they do not consider the role of time and of space, such as the existence of asymmetric information and external economies and also the interdependence between the companies and the other ‘stakeholders’ in the process of economic development. On the contrary, the theoretical framework of this chapter considers the factors that act on the structural changes according to four different and interdependent dimensions: the final demand, the intermediate productions and also the supply of labour and the endowment of natural resources. Finally, some preliminary indications on the organisation of a new industrial strategy at the European scale are discussed, different from the focus on just the digital and green technologies, as indicated by the NGEU program by the European Commission.
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Meysam Salimi, Edoardo Della Torre and Raffaele Miniaci
By combining structural contingency theory and socio-emotional wealth (SEW) theory, this study aims to identify the organizational determinants of collective performance-related…
Abstract
Purpose
By combining structural contingency theory and socio-emotional wealth (SEW) theory, this study aims to identify the organizational determinants of collective performance-related pay (PRP) adoption by examining the interplay between a firm's ownership characteristics (i.e. family or non-family ownership) and other organizational characteristics.
Design/methodology/approach
This study adopts a quantitative approach, conducting empirical analyses of a longitudinal dataset of 4,222 Italian companies in the manufacturing sector for 2009–2017. The probability of adopting collective PRP schemes is estimated using the average marginal effects of the probit and linear probability models (LPMs).
Findings
The results show that family firms are less likely to adopt collective PRP schemes than non-family firms. Moreover, ceteris paribus, firm characteristics such as size, age and past (firm and labor) productivity are important determinants of firms' adoption of collective incentive pay; however, the significance and magnitude of their effects vary depending on a firm's ownership structure.
Originality/value
This analysis has two major elements of novelty. First, it increases the knowledge of how organizational contingencies differ in family versus non-family contexts regarding pay decisions. Second, it brings new theoretical perspectives to the pay debate by combining structural contingency theory and SEW theory, thus developing new and fertile theoretical grounds for advancing our understanding of the pay determinants. To the best of authors' knowledge, this is one of the first (if any) studies to shed light on collective PRP in family and non-family firms.
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Edward Robert Freeman, Chiara Civera, Damiano Cortese and Simona Fiandrino
The purpose of this paper is to link empowerment to the engagement of low-power stakeholders in the context of marine protected areas (MPAs) to suggest how empowerment-based…
Abstract
Purpose
The purpose of this paper is to link empowerment to the engagement of low-power stakeholders in the context of marine protected areas (MPAs) to suggest how empowerment-based engagement can be strategised to prevent and overcome management crises within a natural common good and ultimately achieve effective co-management.
Design/methodology/approach
This research employs a longitudinal case study methodology. The subject of the study is Torre Guaceto MPA, a natural common good, internationally recognised as a best practice of co-management.
Findings
The case study illustrates specific empowerment areas and actions that help move low-power stakeholders to higher levels of engagement to achieve effective co-management. It also suggests that the main strategic implication of empowerment-based engagement is the creation of empowered stakeholders who can serve as catalysts for sustaining the common through the development of entrepreneurial skills that satisfy joint interests.
Research limitations/implications
The applied methodology of a single case and the peculiar conditions intrinsic to this case can be overcome via the inclusion and comparison of other similar commons.
Practical implications
The study provides a stakeholder management model of empowerment-based engagement that offers concrete evidence of empowerment strategies that can be adopted and adapted by the management of similar natural common goods.
Originality/value
The research fills the literature gaps related to understanding the antecedents of engagement and its strategic implications within natural common pool resources.
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This chapter deals with the development of banking in the Crown of Aragon from the end of the thirteenth century through the establishment of money changers, which followed…
Abstract
This chapter deals with the development of banking in the Crown of Aragon from the end of the thirteenth century through the establishment of money changers, which followed similar patterns as in other Western European territories. It starts with a review of existing literature and follows with an explanation on the different banking services provided by money changers and the specific legal framework that supported such activities. It then examines the geographical distribution of private banks in cities and towns within the domains of the kings of Aragon, as well as their evolution throughout the fourteenth century. After that, it offers an analysis of the most common professional profiles among these bankers and financers. Finally, drawing on a heterogeneous pool of unpublished data, it seeks to shed light on the diversity of investors and clients of these establishments, a crucial proof of their role in integrated financial markets.