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Article
Publication date: 13 May 2019

Rafael Gomez, Michael Barry, Alex Bryson, Bruce E. Kaufman, Guenther Lomas and Adrian Wilkinson

The purpose of this paper is to take a serious look at the relationship between joint consultation systems at the workplace and employee satisfaction, while at the same time…

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Abstract

Purpose

The purpose of this paper is to take a serious look at the relationship between joint consultation systems at the workplace and employee satisfaction, while at the same time accounting for the (possible) interactions with similar union and management-led high commitment strategies.

Design/methodology/approach

Using new, rich data on a representative sample of British workers, the authors identify workplace institutions that are positively associated with employee perceptions of work and relations with management, what in combination the authors call a measure of the “good workplace.” In particular, the authors focus on non-union employee representation at the workplace, in the form of joint consultative committees (JCCs), and the potential moderating effects of union representation and high-involvement human resource (HIHR) practices.

Findings

The authors’ findings suggest a re-evaluation of the role that JCCs play in the subjective well-being of workers even after controlling for unions and progressive HR policies. There is no evidence in the authors’ estimates of negative interaction effects (i.e. that unions or HIHR negatively influence the functioning of JCCs with respect to employee satisfaction) or substitution (i.e. that unions or HIHR are substitutes for JCCs when it comes to improving self-reported worker well-being). If anything, there is a significant and positive three-way moderating effect when JCCs are interacted with union representation and high-involvement management.

Originality/value

This is the first time – to the authors’ knowledge – that comprehensive measures of subjective employee well-being are being estimated with respect to the presence of a JCC at the workplace, while controlling for workplace institutions (e.g. union representation and human resource policies) that are themselves designed to involve and communicate with workers.

Details

Journal of Participation and Employee Ownership, vol. 2 no. 1
Type: Research Article
ISSN: 2514-7641

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Article
Publication date: 24 February 2025

Julius Wilker, Tim Göttlich, Thorsten Helmig, Rafael Solana Gómez, Hossein Askarizadeh and Reinhold Kneer

Particularly during machining, large heat sources and thus high temperature gradients and mechanical stress occur in the cutting zone. By using cutting fluids, part of the heat…

5

Abstract

Purpose

Particularly during machining, large heat sources and thus high temperature gradients and mechanical stress occur in the cutting zone. By using cutting fluids, part of the heat generated can be dissipated, thereby reducing local temperatures. To quantify the cooling efficiency of the cutting fluid, the flow behaviour of the cutting fluid in vicinity of the cutting zone must be determined to derive the resulting convective heat transfer coefficients at the tool. The purpose of this paper is to investigate the local distribution of the convective heat transfer coefficient as a function of the flow boundary conditions, specifically evaluating the effects of Reynolds number, injection angle and nozzle radius.

Design/methodology/approach

The geometries, temperature fields as well as the heat sources resulting during the machining process are extracted from a chip formation simulation using finite element method (FEM) and used to set up a three-dimensional computational fluid dynamics (CFD) flow simulation.

Findings

On the tool rake face, the local distribution of the convective heat transfer coefficient can be divided into three regions. Firstly, the region where the liquid impinging jet initially strikes, then a region near the chip where the flow is strongly deflected and then the remaining region in the boundary layer region. For each region, a function is derived that describes its position, subsequently the mean convective heat transfer coefficient is determined and summarised in a Nusselt correlation as a function of the flow parameters.

Research limitations/implications

Simulation results reveal that the distribution of the convective heat transfer coefficient on the tool rake face can be divided into three distinct regions: the impingement zone where the impinging jet first strikes, the deflection zone near the chip where the flow sharply redirects and the boundary layer zone covering the remaining surface. A geometric function is derived to describe the position and extent of each of these areas. In addition, the mean convective heat transfer coefficient can be determined for each of the regions using a Nusselt correlation based on the flow parameters.

Practical implications

These correlations allow for simplified determination of the local convective heat transfer coefficient on the tool.

Originality/value

This paper introduces an innovative approach for estimating the local distribution of the convective heat transfer coefficient at the tool rake face during orthogonal cutting under cutting fluid supply. The influence of the three-dimensional flow field of the cutting fluid jet of the convective heat transfer coefficient on the tool rake face is analysed in detail in the vicinity of the chip as a function of varying Reynolds numbers, nozzle radii and injection angles within a three-dimensional geometry.

Details

International Journal of Numerical Methods for Heat & Fluid Flow, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 0961-5539

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Article
Publication date: 4 July 2016

Jaime Garcia-Benitez, Cristina Cuerno-Rejado and Rafael Gomez-Blanco

This paper aims to compare three closed non-planar wing configurations with a reference conventional wing-plus-horizontal tail aircraft, considering structural aspects, weights…

378

Abstract

Purpose

This paper aims to compare three closed non-planar wing configurations with a reference conventional wing-plus-horizontal tail aircraft, considering structural aspects, weights and aerodynamic characteristics, as well as operational issues, such as cruise performance.

Design/methodology/approach

A vortex lattice code is used and coupled with an in-house code for structural beam calculation subroutine to evaluate the configurations as a function of the four main parameters identified in the study.

Findings

The study concludes that the non-planar wing configurations have better performances than a conventional aircraft. Moreover, the joined-wing configuration seems to be better than the others, including the box-wing configuration, achieving an increase of 17 per cent in the range for maximum payload compared to the reference aircraft and a 3 per cent reduction of maximum take-off weight.

Research limitations/implications

In the study, characteristic tools for a conceptual design are used, and, thus, absolute results should be considered with caution. Nonetheless, as all the cases are studied in the same way, there is a good precision in comparative or relative results.

Practical implications

The work shows that the non-planar wing configurations can be used as an alternative to the conventional aircraft to meet the objectives for the future of the aviation industry.

Social implications

Non-planar wing configurations are able to reduce fuel consumption. Their use could lead to reductions in pollutant emissions and the impact on the environment of commercial aviation.

Originality/value

This study considers aerodynamic and structural aspects at the same time, as well as several non-planar wing configurations, making possible to obtain a more realistic comparison between them.

Details

Aircraft Engineering and Aerospace Technology: An International Journal, vol. 88 no. 4
Type: Research Article
ISSN: 1748-8842

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Article
Publication date: 10 January 2024

Carolina Serra Folch and Cristina Martorell Castellano

This paper aims to review the history of Roldós y Compañía, one of the oldest advertising agencies in the world and the oldest currently operating. This research aims to highlight…

93

Abstract

Purpose

This paper aims to review the history of Roldós y Compañía, one of the oldest advertising agencies in the world and the oldest currently operating. This research aims to highlight the importance of this agency and its founder, Rafael Roldós Viñolas – the first documented advertising agent in Spain to this day – in shaping the emerging Spanish advertising industry at the end of the 19th century.

Design/methodology/approach

The methodology used in this paper is based on a review of period and contemporary literature, as well as on newspaper sources and documents from the private archive of Roldós, S.A.

Findings

In its early years, the agency’s participation in two of the most significant events for the modernization of the city of Barcelona, the Universal Exhibition of 1888 and the International Exhibition of 1929; as well as the ideation and implementation of several urban projects with the aim of finding new formulas and advertising media are factors that make it one of the most important in the country. In 1929, the alliance Roldós-Tiroleses, S.A. de Publicidad, the first great merger of advertising agencies in Spain, which lasted three years, was led. The outbreak of the Civil War and the subsequent post-war period marked a few years of business irregularities and advertising silences that gave instability to its activity. During the last third of the 20th century, the agency was immersed in the generalized advertising euphoria around the world. With the arrival of North American agencies in Barcelona and the consequent business movements, Roldós, S.A. specializes in the processing of advertisements and media planning. The 21st century began with important changes in the media planning sector, and the agency was forced to restructure its services and organizational structure. In 2022, it celebrates 150 years of uninterrupted activity, recognized by the country’s business sector.

Practical implications

This research aims to internationalize the history of the Roldós y Compañía agency, so that it can be studied together with other names of Anglo-Saxon advertising pioneers who were contemporaries of Rafael Roldós.

Originality/value

Scientific research on the history of advertising agencies, especially in Spain, is scarce, so this paper aims to help fill this gap.

Details

Journal of Historical Research in Marketing, vol. 16 no. 3
Type: Research Article
ISSN: 1755-750X

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Article
Publication date: 7 November 2016

Emilio Domínguez Escrig, Francisco Fermín Mallén Broch, Ricardo Chiva Gómez and Rafael Lapiedra Alcamí

The purpose of this paper is to provide empirical evidence of the relationship between altruistic leader behavior and radical innovation, using organizational learning as an…

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Abstract

Purpose

The purpose of this paper is to provide empirical evidence of the relationship between altruistic leader behavior and radical innovation, using organizational learning as an explanatory variable.

Design/methodology/approach

To confirm the hypotheses, structural equations were used on a data set from a survey carried out on Spanish firms with recognized excellence in human resources management.

Findings

The study empirically validates the conceptual model. Results suggest that organizational learning capability fully mediates the relationship between altruistic leader behavior and radical innovation.

Research limitations/implications

The database used in the study is very heterogeneous. Future research might delimit the database by organization size or sector.

Practical implications

Results suggest ideas for organizations that want to implement a working environment that fosters innovation performance in order to achieve radical innovations.

Originality/value

This is one of the few studies to concentrate on altruistic leader behaviors as such. This paper contributes to understanding how altruistic leader behavior affects radical innovation and the key role played by organizational learning capability.

Details

Leadership & Organization Development Journal, vol. 37 no. 8
Type: Research Article
ISSN: 0143-7739

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Article
Publication date: 1 January 1989

Amelia R. BRETONES, Rafael Gomez MARTIN and Alfonso SALINAS

A computer program named DOTIG1 was developed for the study, in the time domain, of the interaction of transient electromagnetic pulses (EMP) with structures modelled by thin…

107

Abstract

A computer program named DOTIG1 was developed for the study, in the time domain, of the interaction of transient electromagnetic pulses (EMP) with structures modelled by thin wires. The numerical procedure used is described and the results obtained with DOTIG1 are compared with those obtained, in the frequency domain, by other authors, using the Fourier transform. The comparison is specifically applied to the scattering cases from a simple stick model of an aircraft, from a wire cross in front of an infinite perfect conductor and from a junction of two wires with different radii.

Details

COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, vol. 8 no. 1
Type: Research Article
ISSN: 0332-1649

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Article
Publication date: 1 December 1997

Jesús Fornieles Callejón, Alfonso Salinas and Rafael Gómez Martín

This paper describes a computer program DOTIG4, for the study in the time domain, of the interaction of transient electromagnetic pulses (EMP) with arbitrary perfect conducting…

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Abstract

This paper describes a computer program DOTIG4, for the study in the time domain, of the interaction of transient electromagnetic pulses (EMP) with arbitrary perfect conducting (PEC) surfaces modelled by planar triangular patches. DOTIG4 is based on the solution of the Time Domain Electric Field Integral Equation (TD‐EFIE) by the method of moments (MoM) using a marching‐on‐in‐time procedure. The code is applied to transient scattering of several structures and to calculate the input impedance of several broadband antennas.

Details

COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, vol. 16 no. 4
Type: Research Article
ISSN: 0332-1649

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Article
Publication date: 1 August 2002

Rafael Gomez, Morley Gunderson and Andrew Luchak

Issues associated with retirement in general, and phased transitions into retirement in particular, are taking on increased importance for a variety of reasons. Outlines those…

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Abstract

Issues associated with retirement in general, and phased transitions into retirement in particular, are taking on increased importance for a variety of reasons. Outlines those reasons, paying particular attention to the practice of mandatory retirement. Presents age dependency ratios for the OECD to highlight the importance of these issues in the context of an ageing and longer‐lived workforce relative to a smaller working age population. Then discusses the prevalence of mandatory retirement in Canada and the USA, and presents empirical evidence from Canada on variables associated with retiring because of mandatory retirement. The Canadian case is of particular interest, because mandatory retirement in Canada has generally not been banned, which is in marked contrast with the situation in the USA, where it has been banned as constituting age discrimination. The public and legal debate over the issue of mandatory retirement has also been extensive in Canada, and this debate may provide information for other countries dealing with the issue. Ends with an assessment of the extent to which mandatory retirement exerts a constraining influence on transitions into retirement. The essential argument is that its constraining impact is not as simple as it may initially appear. To the extent that mandatory retirement is an intricate part of the compensation and human resource function of firms, banning it can have important implications for those functions and, in turn, for transitions into retirement. The complexities of these issues and dramatically increasing old‐age dependency ratios will ensure that this is an area of growing importance for public policy and human resource management.

Details

Employee Relations, vol. 24 no. 4
Type: Research Article
ISSN: 0142-5455

Keywords

Available. Content available
Article
Publication date: 1 September 2001

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Abstract

Details

Sensor Review, vol. 21 no. 3
Type: Research Article
ISSN: 0260-2288

Keywords

Available. Content available
Book part
Publication date: 30 May 2018

Gabriela Alvarado, Howard Thomas, Lynne Thomas and Alexander Wilson

Free Access. Free Access

Abstract

Details

Latin America
Type: Book
ISBN: 978-1-78756-808-2

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