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Article
Publication date: 10 August 2023

Aida Bennouna, Assia Boughaba, Mohamed Mouda and Salim Djabou

This study aims to examine the long-term impact of leader–member exchange (LMX) on employee safety behavior. It proposes a conceptual model that includes the mediating role of job…

295

Abstract

Purpose

This study aims to examine the long-term impact of leader–member exchange (LMX) on employee safety behavior. It proposes a conceptual model that includes the mediating role of job satisfaction (JS) in the relationship between LMX and safety behaviors, regarding safety compliance behavior (SCB) and safety participation behavior (SPB).

Design/methodology/approach

Data were collected from 325 health-care workers across public hospitals in Algeria at three waves. Data were analyzed with partial least square structural equation modeling.

Findings

The findings revealed that LMX positively influenced employees’ job satisfaction. However, the relationship between LMX and SCB was found to be mediated by job satisfaction. LMX was not directly related to both dimensions of safety behavior, whereas JS was positively associated with safety compliance and safety participation.

Originality/value

This is the first paper, to the best of the authors’ knowledge, to report on the significant mediating role of JS on the reciprocal process used to exchange resources between leaders and subordinates and safety behaviors among health-care workers, thereby filling an important research gap in existing literature.

Details

Leadership in Health Services, vol. 37 no. 1
Type: Research Article
ISSN: 1751-1879

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Article
Publication date: 8 June 2015

Djebabra Mébarek, Mouda Mohamed and Bellaala Djamel

– The purpose of this paper is to assist organizations in the professional risk prevention.

110

Abstract

Purpose

The purpose of this paper is to assist organizations in the professional risk prevention.

Design/methodology/approach

It consists of a proposal for a BQA method of the work procedures analysis.

Findings

In the suggested method, the authors use the principles of BQA and propose a new formulation of parameters of a work procedures simplification.

Practical implications

The suggested method constitutes an invaluable help to implementation of the work permits system.

Originality/value

The suggested method facilitates the process of working safety assessment providing substantial assistance to one of the most important stages that is to decide which particular indicators will be considered.

Details

Journal of Management Development, vol. 34 no. 6
Type: Research Article
ISSN: 0262-1711

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Article
Publication date: 2 August 2019

Mouhcine Mouda, Mohamed Nabhani and Mohamed El Khlifi

This study aims to examine the magneto-elastohydrodynamic effect on finite-width slider-bearings lubrication using a non-Newtonian lubricant.

98

Abstract

Purpose

This study aims to examine the magneto-elastohydrodynamic effect on finite-width slider-bearings lubrication using a non-Newtonian lubricant.

Design/methodology/approach

Based on the magneto-hydrodynamic (MHD) theory and Stokes micro-continuum mechanics, the modified two-dimensional Reynolds equation including bearing deformation was derived.

Findings

It is found that the bearing deformation diminishes the load-capacity and increases the friction coefficient in comparison with the rigid case. However, the non-Newtonian effect increases load-capacity but decreases the friction coefficient. Moreover, the use of a transverse magnetic field increases both the friction coefficient and load capacity.

Originality/value

This study combines for the first time MHD and elastic deformation effects on finite-width slider-bearings using a non-Newtonian lubricant.

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Article
Publication date: 28 July 2020

Mouhcine Mouda, Mohamed Nabhani and Mohamed El Khlifi

The purpose of this paper is to examine the effect of surface roughness on the magneto-hydrodynamic (MHD) non-parallel squeeze film lubrication using non-Newtonian lubricant.

78

Abstract

Purpose

The purpose of this paper is to examine the effect of surface roughness on the magneto-hydrodynamic (MHD) non-parallel squeeze film lubrication using non-Newtonian lubricant.

Design/methodology/approach

Based on the MHD thin film lubrication theory and the Stokes theory and homogenization method, the homogenized MHD Reynolds equation is derived considering the squeezing effect.

Findings

It is found that the obtained results indicate that the interaction among non-Newtonian, MHD and surface roughness influences is significant.

Originality/value

This study is original which compares the dimensionless load capacity and dimensionless response time among transverse, longitudinal and, for the first time, anisotropic surface roughness types under magneto-hydrodynamic non-Newtonian non-parallel squeeze film lubrication.

Peer review

The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-02-2020-0071/

Details

Industrial Lubrication and Tribology, vol. 73 no. 1
Type: Research Article
ISSN: 0036-8792

Keywords

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Article
Publication date: 2 June 2022

Mohammed Kardoudi, Mohamed Nabhani and Mohamed El Khlifi

This paper aims to present a numerical model to examine the finite magneto-hydrodynamic (MHD) journal bearings performances including both non-Newtonian couple stress and bearing…

59

Abstract

Purpose

This paper aims to present a numerical model to examine the finite magneto-hydrodynamic (MHD) journal bearings performances including both non-Newtonian couple stress and bearing deformation impacts.

Design/methodology/approach

Based upon the MHD and Stokes theories, a novel expression of modified Reynolds equation including bearing deformation is obtained. The bearing elastic deformation impact is predicted by means of the Winkler model. Using the numerical differentiation approach, the film pressure is iteratively solved. Different bearing characteristics are then numerically calculated. The validity of the proposed model was verified by comparing with some particular cases from literature.

Findings

From the numerical presented results, it is demonstrated that the conducting couple stress lubricant with an applied radial magnetic field results in an induced electric current density and thus significantly improves the performances of elastic journal bearings. Particularly, the load-carrying capacity is increased, whereas a reduction in friction factor is observed.

Originality/value

This numerical model is original, which combines both non-Newtonian couple stress and bearing deformation impacts on finite MHD journal bearings performances. It provides useful information in designing MHD journal bearings, given the lack of experimental studies.

Details

Industrial Lubrication and Tribology, vol. 74 no. 6
Type: Research Article
ISSN: 0036-8792

Keywords

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