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Organic coatings are one of the most widely applied methods for corrosion protection of metallic materials such as the tubing used in sour gas field. However, such coatings usually encounter the risk of failure due to the harsh and complex environment. Therefore, the study of failure of the organic coating is highly significant.

In this paper, the effects of Cl-concentration, HCl content, hydrogen sulfide/carbon dioxide (H₂S/CO₂), temperature and flow rate on the failure of epoxy-phenolic coating on the internal surface of BG90S steel tubing were investigated using adhesion force measurement, metallographic microscope, electrochemistry impedance spectroscopy and Fourier transform infrared spectroscopy.

The results show that the Cl-concentration, HCl content and H₂S/CO₂ do not affect the failure process too much as the ion concentration increased. However, the flow rate at the high temperature is the most important factor affecting the corrosion resistance of the inner coating tubing. With the increase of the flow rate, the pore resistance of the coating shows a decreasing trend, and the rate of decrease in pore resistance is first rapid and then slow. It demonstrates that the penetration speed of the electrolyte solution into the coating varied from fast to slowly. A weakening influence of the flow rate on the penetration failure of the inner coating can be found as the increase of the flow rate. Once the HS-ions penetrate through the coating and reach at the coating/steel interface where H₂ could be formed through the adsorption reaction, the coating failure occurs.

The failure of the coating depends on the penetration rate of water and ions, with the presence of exposed or punctured holes is accelerated and HS- was adsorpted by substrate Fe, and form H2 molecules between the coatings and substrate, that results failure of coatings.

The purpose of this study is to examine the development of environmental performance (EP) through sustainable practices (SPs), environmental corporate social responsibility (environmental CSR) and behavioural intentions (BIs) among Pakistan’s small and medium enterprises (SMEs).

In this study, the researchers applied a quantitative approach which involved significant cross-sectional data. The authors used an online survey to serve the aim of this study. The survey’s respondents are top managers of Pakistan’s manufacturing firms. The authors received 196 valid cases to obtain suitable outcomes from the data.

By using the structural equation model, the path analysis shows that green practices (GPs) have a positive and significant effect on SPs and environmental CSR. This study’s findings also demonstrate that environmental CSR plays a substantial role in developing the SPs, BIs and EP. The results of this study also show that SP plays a positive and significant role towards BIs and EP. Finally, BI predicts the EP.

This study's findings provide planners and policymakers with guidelines to create EP through environmental CSR, SPs and BIs. This study's findings are valuable results in identifying green practices’ significant role in establishing environmental CSR and SPs. Finally, this study's findings offer a new perception of integrating these factors and their contribution to EP.

This study examined the development of EP in the challenging situation of the COVID-19 pandemic. Therefore, in terms of the empirical findings, this study provides original value.

The purpose of this paper is to provide an overview of leadership styles in the hospitality industry. It also demonstrates theories used in hospitality leadership styles research, identifies the main outcomes and highlights gaps for future research.

This paper presents a comprehensive review of the 79 articles on leadership styles in the hospitality context spanning over 13 years (2008–2020) and extends the scope in distinctive means.

This review has demonstrated that leadership styles research in hospitality has made progress in the past 13 years; however, there are conceptual and empirical overlaps among different leadership styles in hospitality. There is a lack of research on antecedents and integrating theories in studies. This review has revealed that several leadership styles have not been rigorously examined in hospitality research with their outcomes.

The search strategy used to find articles published in Web of Science about leadership styles in hospitality was restricted to title to boost the accuracy of the subsequent literature.

By following the guidance presented in this review, the authors expect to advance and maintain hospitality leadership research to provide substantive insights into the context of hospitality leadership over the coming years.

To the best of the authors’ knowledge, this study is one of the first to undertake a comprehensive understanding of various leadership styles in the hospitality context. This study provides a comprehensive projected research agenda to demonstrate theoretical discourses and empirical research. Overall, this critical review presents a holistic idea of the focus of the prior studies and what should be highlighted in future studies.

This paper aims to examine how the linkages between organizational commitment (OC) and five leadership styles, namely, authentic leadership, benevolent leadership, ethical leadership, moral leadership and spiritual leadership, have been investigated in the literature.

This systematic literature review applies a matrix method to examine the significant literature in leadership and OC, specifically considering themes of self-development, self-awareness, self-regulation, self-discipline and self-motivation necessary for individuals and organizations. The papers from Australian Business Deans Council, Scopus and Web of Science listed journals were reviewed. Forty-three peer-reviewed English publications from 20 journals were selected and analysed.

The synthesis of these empirical studies revealed that the relationship between OC and these leadership styles had primarily been mostly quantitatively investigated in many countries and sectors. Additionally, ethical leadership remains the most commonly researched style. Furthermore, there are mediating mechanisms and boundary conditions in the relationship between these styles and OC.

The literature search in this study was mainly focused on English articles only; therefore, some papers in other languages may not have been included. Additional qualitative studies based on these linkage themes need to be conducted in human resource development (HRD) contexts.

This review offers an overall picture of the existing knowledge of OC and leadership that will be fruitful for HRD practitioners to understand and replicate these concepts.

There are few systematic literature reviews on the relationship between OC and leadership styles. This paper is among the first systematic reviews to analyse how leadership has been associated with OC and provides potential research directions. HRD practitioners and academia should find the results of this study helpful.