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Article
Publication date: 17 August 2012

Jorge Palma Carrasco, José Maria Andrade Barbosa, Antonio Almeida Silva and Marcos Antonio da Silva Irmão

The purpose of this paper is to present a numerical simulation of the hydrogen atomic effect on the steels fracture toughness, as well as on crack propagation using…

Abstract

Purpose

The purpose of this paper is to present a numerical simulation of the hydrogen atomic effect on the steels fracture toughness, as well as on crack propagation using fracture mechanics and continuous damage mechanics models.

Design/methodology/approach

The simulation was performed in an idealized elastic specimen with an edge crack loaded in the tensile opening mode, in a plane strain state. In order to simulate the effect of hydrogen in the steel, the stress intensity factor ahead of the crack tip in the hydrogenated material was obtained. The damage model was applied to simulate the growth and crack propagation being considered only two damage components: a mechanical damage produced by a static load and a non‐mechanical damage produced by the hydrogen.

Findings

The simulation results showed that the changes in the stress field at the crack tip and the reduction in the time of growth and crack propagation due to hydrogen effect occur. These results showed a good correlation and consistency with macroscopic observations, providing a better understanding of the hydrogen embrittlement phenomenon in steels.

Originality/value

The paper attempts to link the concepts of the continuous damage and fracture mechanics to achieve a better approach in the representation of the physical phenomenon studied, in order to obtain a more accurate simulation of the processes involved.

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Book part
Publication date: 29 January 2013

Abstract

Details

Transport Survey Methods
Type: Book
ISBN: 978-1-78-190288-2

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Article
Publication date: 1 April 2003

Georgios I. Zekos

Aim of the present monograph is the economic analysis of the role of MNEs regarding globalisation and digital economy and in parallel there is a reference and examination…

Abstract

Aim of the present monograph is the economic analysis of the role of MNEs regarding globalisation and digital economy and in parallel there is a reference and examination of some legal aspects concerning MNEs, cyberspace and e‐commerce as the means of expression of the digital economy. The whole effort of the author is focused on the examination of various aspects of MNEs and their impact upon globalisation and vice versa and how and if we are moving towards a global digital economy.

Details

Managerial Law, vol. 45 no. 1/2
Type: Research Article
ISSN: 0309-0558

Keywords

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Article
Publication date: 6 February 2017

Domingo Martínez-Martínez, Jesús Herrera Madueño, Manuel Larrán Jorge and María Paula Lechuga Sancho

The purpose of this paper is to analyse empirically the corporate social responsibility (CSR) strategic effects on the competitive performance of small- and medium-sized…

Abstract

Purpose

The purpose of this paper is to analyse empirically the corporate social responsibility (CSR) strategic effects on the competitive performance of small- and medium-sized enterprises (SMEs) by performing a multiple mediator analysis.

Design/methodology/approach

The empirical research was conducted in Spanish SMEs. A questionnaire was distributed among managers of these companies. Thus, with a final sample of 481 cases and using consistent partial least squares structural equation modelling, direct and mediating effects were tested. In particular, relationships among corporate social performance (CSP) (exogenous variable), competitive performance (endogenous variable), relational marketing (mediating variable) and innovative capacity (mediating variable) were hypothesized. Moreover, a further analysis about the superior returns offered by socially responsible practices related to core business stakeholders was conducted.

Findings

The results highlight a significant and positive effect that CSP has on competitive performance. Additionally, both mediating positive effects were supported and the firm size was checked as a relevant control variable which, as proxy for resources availability, affects all constructs used with the exception of relational marketing. Managers interested in a strategic approach to social responsibility should be aware that the investment in activities related to employees and customers leads to higher competitiveness.

Research limitations/implications

The study was limited to SME in Spain. Moreover, information related to competitive performance was gathered from managers’ own perceptions, considering the performance of their direct competitors as a reference level.

Originality/value

To the authors knowledge, no research studies were found that empirically examined the business case in SMEs and employed a CSR approach based on stakeholders’ perspective. Therefore, the main contribution of this research is to show how socially responsible management of SMEs leads to higher competitive performance both direct and indirectly, using two strategic variables suggested in literature on large corporations. Despite their resources limitations, this kind of organizations is in a favourable position to engage with different stakeholders and benefit from their relationships, especially with employees and customers.

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Article
Publication date: 29 February 2020

Justo De Jorge-Moreno and Virignia De Jorge-Huertas

The purpose of this paper is to conduct a benchmark analysis of European cities based on the estimation of a composite index of efficiency from the dimensions of the…

Abstract

Purpose

The purpose of this paper is to conduct a benchmark analysis of European cities based on the estimation of a composite index of efficiency from the dimensions of the Cultural and Creative Cities Monitor 2017 (CCCM). The study helps to initiate a new exploration path based on this information, using a segmentation criterion of countries according to their economic and demographic characteristics, in search of greater comparative homogeneity.

Design/methodology/approach

In this paper, the metafrontier methodological proposal with data envelopment analysis (DEA) has been used to compare the groups of cities individually with their joint reference.

Findings

The results obtained indicate, from a greater control of heterogeneity, through the segmentation of the sample of cities and the metafrontier methodology, that the composite index (IEC3) through the enveloping data analysis methodology (DEA) is more robust than that obtained with the arbitrary assignment of CCCM weights. The analyses carried out make it possible to study and conduct more real and rigorous comparisons of the cities that experience the best practices, unlike other more distant ones. Reference to cities such as Paris, Louvain and Cork could serve as a basis for possible improvements.

Originality/value

It is important to bear in mind that the possible urban policies of a city and the creative strategies and their derived impact are different, because of the diversity in each city. These new comparability possibilities could serve as a tool for economic policy makers, companies and local managers to carry out learning and simulation processes in the improvement of creative cities.

Details

Journal of Economic Studies, vol. 47 no. 4
Type: Research Article
ISSN: 0144-3585

Keywords

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Article
Publication date: 16 October 2019

Mariluz Fernandez-Alles, Juan Pablo Diánez-González, Tamara Rodríguez-González and Mercedes Villanueva-Flores

The purpose of this paper is to analyze potentially significant differences in a series of relevant characteristics of universities’ technology transfer offices (TTOs). To…

Abstract

Purpose

The purpose of this paper is to analyze potentially significant differences in a series of relevant characteristics of universities’ technology transfer offices (TTOs). To this end, TTOs have been classified by the function of their resources assigned to the enhancement of university entrepreneurship. The factors analyzed are the number of academic spin-offs created with the support of TTOs as well as the TTOs’ age, experience, professionalization and relational capital.

Design/methodology/approach

The authors have performed a hierarchical agglomerative cluster analysis to identify the groups of TTOs with homogeneous behavior and features. This multivariate technique allows determining whether it is possible to identify some differentiated conglomerates of TTOs.

Findings

The results of the cluster analysis allow concluding that the number of academic spin-offs created with the support of TTOs, the age and degree of professionalization of these TTOs, the experiences of their employees in matters related to entrepreneurship and their relationships with market actors explain the different levels of commitment of TTOs toward the enhancement of university entrepreneurship. In contrast with the expected results, the relationship between TTOs and academic actors does not seem to explain such differences.

Originality/value

This research contributes to the identification of the particular design characteristics that TTOs should exhibit to promote the entrepreneurial performance of universities, offering important recommendations to academic institutions regarding the efficient design of TTOs to manage university ambidexterity and to build TTOs’ entrepreneurial identity.

Details

Journal of Science and Technology Policy Management, vol. 10 no. 4
Type: Research Article
ISSN: 2053-4620

Keywords

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