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1 – 7 of 7Lu Chen, Chenchen Xu, Mingfei Ma, Wen Wang, Liang Guo and Patrick Wong
The cleaning of food production equipment using cleaning detergents may contaminate the lubricant of the bearings, thereby reducing the bearing service life. The purpose of this…
Abstract
Purpose
The cleaning of food production equipment using cleaning detergents may contaminate the lubricant of the bearings, thereby reducing the bearing service life. The purpose of this paper is to investigate the cause and mechanism of such damage of bearings lubricated by cleaning detergent/water-in-oil emulsions.
Design/methodology/approach
The emulsion was prepared by adding a mixture of cleaning detergent and water in one base oil. A self-designed ball-on-disc optical interference test rig was applied to examine the effect of emulsion on lubrication and wear of bearing contacts under pure sliding conditions.
Findings
The emulsion reduced lubricating film thickness at a relatively low-sliding speed but only when the water concentration (20%) in emulsion was high. Water droplets were trapped around the ball-on-disc contact area under static conditions because of a high capillary force. The emulsion can induce damages on the soft surface in the startup mainly due to the presence of water around the contact.
Originality/value
The basic lubrication behaviour of water/oil emulsions containing cleaning detergent under pure sliding was experimental studied and the mechanism of bearing damage in food production equipment was investigated. Based on the study, the solution to avoid such damage was proposed.
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Wenxun Jiang, Wen Wang and Mingfei Ma
Due to high speeds, heavy loads, large slide-to-roll ratios (SRR) and other variable operating conditions, some rolling bearings that have been working in harsh conditions may…
Abstract
Purpose
Due to high speeds, heavy loads, large slide-to-roll ratios (SRR) and other variable operating conditions, some rolling bearings that have been working in harsh conditions may experience flash temperatures in the contact area, which may result in early damage like smearing and then affect service life. This study aims to investigate the flash temperature phenomenon of rolling bearings through theoretical and experimental analysis.
Design/methodology/approach
A technology for measuring temperature distribution in rolling ball on disk contact under lubrication was developed. The test-rig can simulate the ball bearing contact. The effects of working conditions such as entrainment speed, load, SRR and lubricating oil viscosity on the flash temperature were investigated.
Findings
The results of the theoretical calculation and experiments indicate that the parameters promoting the reduction of film thickness in elastohydrodynamic lubrication are always related with the number of flash points, even film thickness reduced to mixed lubrication. The flash temperature is easier to happen in conditions of high SRR, heavy load, slow entrainment speed and low viscosity oil.
Originality/value
This work conducts an experimental study on the flash temperature phenomenon, providing a test technology for bearing lubrication and failure investigation.
Peer review
This author has opted into Transparent Peer Review available at: https://publons.com/publon/10.1108/ILT-04-2023-0104
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Jing Zhang and Mingfei Du
The purpose of this paper is to investigate how a B2B firm can improve its value appropriation from industrial buyer–seller relationships by leveraging its network capability, as…
Abstract
Purpose
The purpose of this paper is to investigate how a B2B firm can improve its value appropriation from industrial buyer–seller relationships by leveraging its network capability, as well as the curvilinear moderating role of the firm’s network embeddedness.
Design/methodology/approach
This paper empirically examines seven research hypotheses about the relationship between network capability and value appropriation and the curvilinear moderating effect of network embeddedness based on a questionnaire survey among 232 Chinese B2B firms.
Findings
It is found that network capability helps sellers appropriate value from industrial buyer–seller relationships via information acquisition, network resources and power. The mediating effect of network resources is the highest, followed by power and information acquisition. In addition, a seller’s embeddedness in a business network positively moderates the network capability and value appropriation link in an inverted U-shaped way.
Originality/value
The study makes significant contributions to the literature on value appropriation and also provides insightful implications for B2B firms to capture value from industrial buyer–seller relationships by leveraging network capability and network embeddedness.
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Jing Zhang and Mingfei Du
This study aims to investigate how business-to-business (B2B) companies use message strategies on social media platform and how these strategies are effective in improving…
Abstract
Purpose
This study aims to investigate how business-to-business (B2B) companies use message strategies on social media platform and how these strategies are effective in improving customer perceived value and encouraging customer engagement, as well as how B2B companies differ from business-to-customer (B2C) counterparts in terms of utilization and effectiveness of social media message strategy.
Design/methodology/approach
Based on content analysis of Sina Weibo brand pages and survey of website visitors, this paper examines the differences of social media message strategies and their impacts upon customer perceived value and customer engagement between B2B and B2C companies.
Findings
B2B companies use more rational appeals and less emotional appeals, have lower degree of informativeness and perform better in interactivity and variety than B2C companies. These five dimensions of message strategy have different roles in engaging customers via perceived value across B2B and B2C settings.
Originality/value
The research makes significant contributions to B2B social media marketing literature by answering two interrelated questions, namely, “What companies are doing?” and “What companies should do?” on social media websites. Besides, it provides insightful implications for B2B companies on how to implement appropriate message strategies in their social media marketing efforts by conducting Importance-Performance Analysis.
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Silva Karkoulian, Leila Canaan Messarra and Richard McCarthy
The goal of this research is to empirically assess whether knowledge management (KM) and learning organizations (LO) are distinct concepts and if so, to test whether KM enhances…
Abstract
Purpose
The goal of this research is to empirically assess whether knowledge management (KM) and learning organizations (LO) are distinct concepts and if so, to test whether KM enhances LO more or vice versa.
Design/methodology/approach
The authors propose an approach by which they first empirically assess the independence of those two concepts, then KM's fundamental processes, being knowledge acquisition, sharing, and utilization, are hypothesized to have a positive relationship with the different LO dimensions. Retail business employees working in organizations in Lebanon were surveyed. KM processes were first designated as dependent variables and then as independent variables. Bartlett's test, Pearson correlation, factor analysis, and regression analysis were used to test the hypothesis.
Findings
The results indicated that the two dimensions LO and KM are distinct and that KM enhances LO more than LO enhances KM.
Practical implications
This research extends the impact of knowledge management to include informal processes. It provides empirical evidence that managers should seek to implement formal and informal knowledge management processes into their organizational culture to enable a dynamic learning environment.
Originality/value
This research is significant in that up to this point the relationship between KM and LO has been posited and supported through anecdotal evidence and observation. This research provides empirical evidence of the relationship and forms the basis for further study in this area.
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Stephanie Slater, Stan Paliwoda and Jim Slater
This paper seeks to review the internationalisation strategies of Japanese and Singaporean firms within the context of Dunning, Hymer and Rugman.
Abstract
Purpose
This paper seeks to review the internationalisation strategies of Japanese and Singaporean firms within the context of Dunning, Hymer and Rugman.
Design/methodology/approach
The literature pertaining to culture, environment and Asian management is reviewed and the question is posed whether the management style is changing in response to global market convergence. The study used a mail questionnaire to explore the FDI factors deemed motivational for Japanese and Singapore managers.
Findings
The paper finds that managers need to consider the impact that environment and culture exerts on the decision‐making process as corporations expand their international reach.
Practical implications
One approach to explaining the theory as to why firms expand and perform at different speeds could be to suggest that the cognitive rationale that drives management thinking is environmentally dependent. This would appear plausible given that when the way in which managers make decisions across countries of the same region are compared, differences in thinking do occur. This then exerts an effect on the internationalisation paths pursued by firms.
Originality/value
This research questions the suitability of a “one size fits all” approach to internationalisation given the cultural variables that exist between markets. This builds on the literature that examines the suitability of market convergence but at the same time enables the evaluation of the extent to which Asian managers are driven by market capitalism theory at the organisational level.
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Elodie Jouny-Rivier, Javier Reynoso and Bo Edvardsson
This paper aims to identify and analyze factors that determine firms’ commitment to co-create new services with business customers.
Abstract
Purpose
This paper aims to identify and analyze factors that determine firms’ commitment to co-create new services with business customers.
Design/methodology/approach
A quantitative study based on a scenario method, involving an online survey of French service companies, reveals the determinants of commitment to service co-creation.
Findings
Customer benefits and organizational sacrifices, as well as firm-related factors (specialization, partners’ involvement and innovativeness) correlate with firms’ commitment to co-create new services. The proposed, empirically grounded model details factors that determine firms’ commitment to co-create new services with business customers, including innovative culture as a key determinant.
Practical implications
The identified factors that affect firms’ commitment to co-create services can guide managers’ efforts to improve customer relationships and thus their service innovation processes.
Originality/value
This study identifies and analyzes characteristics of committed firms, as well as the benefits and sacrifices they face in co-creating new services, in a novel way. Thus, it helps define the fit between a service offering and business customers’ participation in new service development contexts.
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