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Article
Publication date: 8 December 2020

Junning Li, Ka Han, Wuge Chen, Xiaojie Tang and Qian Wang

The purpose of this study is to reveal the lubrication performance of textured roller bearings under various texture size, texture depth, texture types and slip.

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Abstract

Purpose

The purpose of this study is to reveal the lubrication performance of textured roller bearings under various texture size, texture depth, texture types and slip.

Design/methodology/approach

In the present study, the improved thermal elastohydrodynamic lubrication method based on the surface texturing of the textured roller bearings is proposed, and then the effect of texture size, texture depth, texture types and slip on the contact pressure, film thickness and temperature distribution are analyzed systematically.

Findings

The results show that the pressure decreases and the film thickness increases on the contact area because of the surface texturing. The temperature increases first and then decreases as the texture size increases, and then the temperature increases as the texture depth and the slip increases. Compared to circle and square texture, cross texture can obviously decrease the temperature on the contact area. The effectiveness of the proposed method is verified.

Originality/value

This study can help to reduce friction and wear of textured roller bearings.

Peer review

The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-08-2020-0318/

Details

Industrial Lubrication and Tribology, vol. 73 no. 2
Type: Research Article
ISSN: 0036-8792

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Article
Publication date: 13 April 2020

Ka Han, Junning Li, Qian Wang, Wuge Chen and Jiafan Xue

The purpose of this study is to reveal the tribological performance of the textured rolling bearing.

288

Abstract

Purpose

The purpose of this study is to reveal the tribological performance of the textured rolling bearing.

Design/methodology/approach

In the present study, the oil film pressure distribution and load capacity analysis method are established, which integrate the micro-texture model and Hydrodynamic lubrication (HL) methods. The tribological performances of the textured rolling bearing under the various working condition, texture dimension and texture type are investigated systematically.

Findings

The results show that the oil film load capacity increases with the increase in the texture size. As the texture depth increases, the oil film load capacity increases first and then decreases, and then the load capacity is the largest at the texture depth range of 3 to 5 µm. In addition, the oil film load capacity of the matching pairs, such as Si4N3-Si4N3, GCr15- Si4N3 and GCr15-GCr15 are compared; the results show that the cases of using ceramic material can improve oil film load capacity of textured rolling bearing.

Originality/value

The current manuscript can be useful for supporting the reliability and life research of textured rolling bearing.

Peer review

The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-02-2020-0055

Details

Industrial Lubrication and Tribology, vol. 72 no. 7
Type: Research Article
ISSN: 0036-8792

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Article
Publication date: 1 April 2004

Amy Maria Blackstone

Sociability work, defined as the work involved in putting on community and charity events, provides one example of the intersections among gender and work. Yet sociologists have…

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Abstract

Sociability work, defined as the work involved in putting on community and charity events, provides one example of the intersections among gender and work. Yet sociologists have generally not included sociability work in their examinations of work. Based on ethnographic research in a breast cancer awareness organization, I analyze women’s sociability work to demonstrate how dimensions of power such as gender shape understandings of what counts and does not count as work. By applying the concept of sociability work to a contemporary group of volunteer workers in the U.S., I show first that this form of working is alive and well to day. I also highlight how sociability work complicates dominant conceptual understandings of work and consider the consequences of sociability work’s relative in visibility. I argue that excluding sociability work from the study of work shuts off critical discussion of its potential uses and misuses in shaping public policy and access to the public sphere.

Details

Equal Opportunities International, vol. 23 no. 3/4/5
Type: Research Article
ISSN: 0261-0159

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Article
Publication date: 16 April 2024

Neena Sinha, Sanjay Dhingra, Ritu Sehrawat, Varnika Jain and Himanshu Himanshu

The emergence of virtual reality (VR) has the potential to revolutionize various industries, including tourism, as it delivers a simulated environment that closely emulates…

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Abstract

Purpose

The emergence of virtual reality (VR) has the potential to revolutionize various industries, including tourism, as it delivers a simulated environment that closely emulates real-life experiences. Therefore, this study aims to explore how the factors, i.e. enjoyment, emotional involvement, flow state, perceived privacy risk, physical risk and cost, influence the customers’ intention to use VR for tourism.

Design/methodology/approach

This study integrates the technology acceptance model, hedonic consumption theory with other factors, including cognitive response, authenticity, perceived privacy risk, perceived physical risk, perceived cost and perceived presence. Partial least squares structural equation modelling approach was used to test the proposed research model.

Findings

The finding based on the sample of 252 respondents revealed that authenticity is the most influential factor impacting behavior intention followed by perceived cost, attitude, cognitive response and enjoyment. Also, the study supported the moderating impact of personal innovativeness between attitude and behavioral intention to use VR for tourism.

Practical implications

The findings of the study offers practical implications for service providers, site managers, destination marketers, tourist organizations and policymaker to develop more effective strategies for offering VR services for tourism.

Originality/value

This study enriches the current understanding of VR adoption in context of tourism with empirical evidences.

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Article
Publication date: 12 March 2024

Xiaoyuan Li and Weile Zhou

This study aims to unravel the tensions and convergences between market-oriented neoliberal education and state-serving transnational higher education (TNHE) practices through an…

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Abstract

Purpose

This study aims to unravel the tensions and convergences between market-oriented neoliberal education and state-serving transnational higher education (TNHE) practices through an infrastructural lens within the broad context of post-pandemic geopolitics.

Design/methodology/approach

The study utilizes a case study approach, with a diverse array of data collection methods, including observations, interviews and review of material/online documents issued by the TNHE-related institutions and the Chinese Ministry of Education.

Findings

The study identifies three findings: (1) Re-articulation of transnational infrastructures, valuing ‘glocal' education and casting immobility as advantageous yet quasi-mobile; (2) Infrastructural tensions arising from stakeholder contests over program control and (3) Infrastructural dialectics, illustrating how promised (im)mobility becomes a tightly regulated academic journey due to institutional constraints and conflicts.

Research limitations/implications

The findings elucidate the dynamic interplay between international education and TNHE amidst neoliberal pedagogical trends and pandemic-driven geopolitical shifts in China. While the interplay showcased a notable effect on Chinese students' (im)mobility during the pandemic, more empirical research is needed to understand international student (im)mobility issues in the post-pandemic era.

Originality/value

This study explores the infrastructural intersections between international and transnational education during the unprecedented Covid-19. Findings may provide a reference for policymakers and practitioners to strategize the “glocal” approach to international/transnational education in China after the pandemic.

Details

Asian Education and Development Studies, vol. 13 no. 3
Type: Research Article
ISSN: 2046-3162

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Article
Publication date: 1 February 2000

Yaw A. Debrah and Ian G. Smith

Presents over sixty abstracts summarising the 1999 Employment Research Unit annual conference held at the University of Cardiff. Explores the multiple impacts of globalization on…

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Abstract

Presents over sixty abstracts summarising the 1999 Employment Research Unit annual conference held at the University of Cardiff. Explores the multiple impacts of globalization on work and employment in contemporary organizations. Covers the human resource management implications of organizational responses to globalization. Examines the theoretical, methodological, empirical and comparative issues pertaining to competitiveness and the management of human resources, the impact of organisational strategies and international production on the workplace, the organization of labour markets, human resource development, cultural change in organisations, trade union responses, and trans‐national corporations. Cites many case studies showing how globalization has brought a lot of opportunities together with much change both to the employee and the employer. Considers the threats to existing cultures, structures and systems.

Details

Management Research News, vol. 23 no. 2/3/4
Type: Research Article
ISSN: 0140-9174

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Article
Publication date: 20 October 2022

Yu Gong, Yanhong Yao and Ao Zan

This study aims to investigate the complex relationship between digitalization capability (DC) and radical innovation performance (RIP). In particular, this study sheds new light…

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Abstract

Purpose

This study aims to investigate the complex relationship between digitalization capability (DC) and radical innovation performance (RIP). In particular, this study sheds new light on the results of previous studies on the effects of DC on firm innovation.

Design/methodology/approach

The authors obtained questionnaire data from 271 IT managers of randomly selected high-tech Chinese firms. The data was used to empirically test the proposed hypotheses using hierarchical regression analysis.

Findings

The findings of this study reveal that DC has an inverted U-shaped effect on RIP. Knowledge accumulation (KA) has a partial mediating effect on the DC–RIP link. Knowledge integration capability (KIC) was found to moderate the DC–RIP relationship: the higher a firm’s KIC, the flatter the DC–RIP curve. Moreover, there is empirical evidence of the shape-flip phenomenon of the DC–RIP curve: when KIC > 1.82, the DC–RIP relationship is no longer an inverted U-shaped but presents as a U-shaped curve.

Research limitations/implications

This study explores the DC–RIP relationship from the perspective of knowledge management, deepens the research scope of digitalization and lays the foundation for subsequent research.

Originality/value

This study provides potential explanations for contradictory views of the effect of DC on innovation in the existing literature by revealing the nonlinear relationship of DC and RIP and the important roles of KA and KIC in that relationship. The new insights into the role of KIC as a threshold for the DC–RIP link provide a direction for firms to control the pace of digital transformation.

Details

Journal of Knowledge Management, vol. 27 no. 6
Type: Research Article
ISSN: 1367-3270

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Book part
Publication date: 5 January 2006

Mark Harrison

This paper is about how a command system allocated resources under profound uncertainty. The command system was the Soviet economy, the period was Stalin's dictatorship, and the…

Abstract

This paper is about how a command system allocated resources under profound uncertainty. The command system was the Soviet economy, the period was Stalin's dictatorship, and the resources were designated for military research & development. The context was formed by the limits of the existing aviation propulsion technology, the need to replace it with another, and uncertainty as to how to do so. We observe the formation of a quasi-market in which rival agents proposed projects and competed for funding to carry them out. We find rivalry and rent seeking, imperfectly regulated by principals. As rent seeking spread and uncertainty was reduced, the quasi-market was closed down and replaced by strict hierarchical allocation and monitoring. In theory, a dictator cannot commit to refrain from taxing the returns from today's effort tomorrow; therefore, we expect agents in a command system to seek only short-term returns from quasi-market activity. Agents’ willingness to invest in the Soviet quasi-market for inventions is ascribed to a reputation mechanism that enforced long-run returns.

Details

Research in Economic History
Type: Book
ISBN: 978-1-84950-379-2

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Article
Publication date: 1 November 2005

Ratapol Teratanavat and Brian H. Kleiner

Every year a number of employees are dismissed in American companies. Several names have been used to call these circumstances such as dismissal, separation, termination…

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Abstract

Every year a number of employees are dismissed in American companies. Several names have been used to call these circumstances such as dismissal, separation, termination, discharge, firing, or layoff (Paula, 1985). Most people use these words interchangeably even though they are slightly different in the meaning regarding the cause of unemployment. The purpose of this study is to show the distinction between “termination” and “layoff” including the definition, the cause of termination and lay off, and the strategy to handle both the termination and layoff situation more properly and effectively. In addition, the study will demonstrate how the layoff has an impact on the American Corporation.

Details

Management Research News, vol. 28 no. 11/12
Type: Research Article
ISSN: 0140-9174

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Article
Publication date: 8 February 2016

Ka Ho Mok and Xiao Han

Although the existing literature indicates the strategy of decentralization adopted by the Chinese government has permitted the introduction of transnational higher education…

1769

Abstract

Purpose

Although the existing literature indicates the strategy of decentralization adopted by the Chinese government has permitted the introduction of transnational higher education (TNHE) into mainland China at its very beginning in the 1980s, relatively little research has been conducted to explore the effects of the ensuing-released policies on the development of TNHE after then, especially at institutional level. The purpose of this paper is to fill this research gap by presenting data/information about recent development of TNHE in China and analyzing teachers’/students’ perceptions of autonomy enjoyed by the newly emerging cooperation type, Sino-foreign cooperation universities.

Design/methodology/approach

Based upon the purposive sampling method, we chose University A and B as case studies in this research to ensure the representativeness, since they cooperate separately with the major exporters of TNHE in China. In addition, key informants and snowball sampling were adopted to select our respondents. In total 5 administrative staff and 12 students were interviewed to evaluate their working/ learning experience there. The detailed information about the interviewees are listed as Appendix.

Findings

The fieldwork conducted in 2014 and 2015 reveals the governance model toward Sino-foreign cooperation universities could be categorized as predominantly decentralized. Specifically, the authors listed the most obvious aspects showing the different level of autonomy enjoyed by different cooperation types below: the internal administrative structure, the enrollment capacity, the criteria of admission and the quality assurance method.

Originality/value

This paper critically explores how local education bureaus regulate these TNHE programs in general and monitor the operation of the overseas university campuses being founded in China in particular. In addition, this paper also reports the field interviews with faculty members and students, particularly their evaluation of working/learning experiences in the field of TNHE. Most important of all, this paper critically reflects upon the changing educational governance and explores what regulatory regime could better conceptualize the changing state-TNHE relations in China.

Details

International Journal of Comparative Education and Development, vol. 18 no. 1
Type: Research Article
ISSN: 2396-7404

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