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Tribological research is complex and multidisciplinary, with many parameters to consider. As traditional experimentation is time-consuming and expensive due to the complexity of tribological systems, researchers tend to use quantitative and qualitative analysis to monitor critical parameters and material characterization to explain observed dependencies. In this regard, numerical modeling and simulation offers a cost-effective alternative to physical experimentation but must be validated with limited testing. This paper aims to highlight advances in numerical modeling as they relate to the field of tribology.

This study performed an in-depth literature review for the field of modeling and simulation as it relates to tribology. The authors initially looked at the application of foundational studies (e.g. Stribeck) to understand the gaps in the current knowledge set. The authors then evaluated a number of modern developments related to contact mechanics, surface roughness, tribofilm formation and fluid-film layers. In particular, it looked at key fields driving tribology models including nanoparticle research and prosthetics. The study then sought out to understand the future trends in this research field.

The field of tribology, numerical modeling has shown to be a powerful tool, which is both time- and cost-effective when compared to standard bench testing. The characterization of tribological systems of interest fundamentally stems from the lubrication regimes designated in the Stribeck curve. The prediction of tribofilm formation, film thickness variation, fluid properties, asperity contact and surface deformation as well as the continuously changing interactions between such parameters is an essential challenge for proper modeling.

This paper highlights the major numerical modeling achievements in various disciplines and discusses their efficacy, assumptions and limitations in tribology research.

The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-03-2023-0076/

A study of step bearing lubricated with a ferrofluid was made in this paper. Shah and Bhat considered the term μ₀M(∂H/∂x) of ferrofluid as lubricant. The present paper discusses the problem with the modified term as μ₀M (∂H/∂x)+(16πμ₀r³χM)/(9(l+2)³)(∂H/∂x) of ferrofluid which incorporates more properties of ferrofluids. Expressions for pressure under the two steps and load carrying capacity were obtained. It was observed that the use of ferrofluid increases the load capacity of the bearing. Also load capacity become more when the length of the first step was taken less.

Ferrofluid lubrication of a porous secant shaped slider bearing was analysed considering slip velocity at the interface of film and porous regions. Expressions for various bearing characteristics were obtained. Computed values of dimensionless load capacity of the bearing, friction force on the moving slider, coefficient of friction and the position of the centre of pressure were displayed in a tabular form. The load capacity, friction and coefficient of friction decreased when the slip parameter increased. But, the load capacity as well as friction decreased and the coefficient of friction increased when the permeability parameter increased. The position of the centre of pressure was not significantly altered when the slip parameter increased. But, it slowly moved towards the inlet when the permeability parameter increased.

Our purpose was to theoretically analyse the effects of slip velocity and a magnetic fluid lubricant characterised by a material parameter on a parallel plate porous slider bearing. Various special cases were also discussed.

The analysis might be useful in designing better slider bearings useful in machines like gas turbines.

Computed values displayed in tabular form show that frictional force on the slider and the coefficient of friction decreased, the load capacity and the position of the centre of pressure unaltered when the slip parameter was increased. On the other hand, increase in the material parameter caused decrease in the frictional force and the coefficient of friction and, shift of the position of the centre of pressure towards the bearing inlet with no change in the load capacity of the bearing.

The parallel plate slider bearing cannot support a load with a conventional lubricant. However, it can support a load with a magnetic fluid lubricant with less frictional force on the slider.

To understand: – the demand and supply side challenges in launching a new product in sports. – Factors, which go into the making of a successful “new” sport. – The role of planning in sport management.

In July 2017, on the eve of Pro Kabaddi League (PKL) Season 5, kabaddi had emerged as one of India’s most important non-cricketing sport. PKL was India’s first men’s professional kabaddi league, introduced by Mashal Sports and Star India in 2014. Kabaddi was an indigenous sport, and India had an unbeaten international track record as world champions. Yet, the sport and its players had never received their due in India. In 2017, while kabaddi’s popularity had increased, leading to sponsorship opportunities, huge player bids, prize money and television viewership, all was not quite hunky-dory. A women’s kabaddi league introduced only the previous year had not been continued, despite an extended format in 2017. The audience profile also did not match that envisaged by Star. As a unique creator of sports content, Star was in an enviable position in India; and so was Kabaddi as a sport. How had Star created a new property around an indigenous sport with rural and rustic associations, transforming it into a snazzy, up-market sport within just three years, even while leagues involving other popular sports failed to create a mark? Could Star sustain this interest? How could kabaddi retain its “star” position within Star’s stable?

In an undergraduate or a postgraduate programme in business administration.

Teaching notes are available for educators only.

CSS 11: Strategy.

The case aims to deal with multigenerational entrepreneurship. The family business of sports goods was initiated by Yashpal Aggarwal and his friends in the 1950s. Yashpal acquired the art of doing business and started initially with trading of sporting goods in Mumbai. Yashpal had three sons, Ashok, Ashwini and Rajesh, who ventured into sports trading business as well. After the demise of Yashpal, Ashok shifted to Jalandhar and started a manufacturing unit, producing roller skates. Ashwini, being entrepreneurial and innovative, had always desired to professionalise the business and hence started with Okini Sports. Okini Sports emerged as the first organised professional sports mall in India.

Based on case research, individual interviews at different levels, testing the case several times and filling the case gaps during the process to authenticate information, multiple sources of information have been used.

Businesses largely compete on the basis of available talent, competency and capability. Family businesses must be open to induct competent people within the family with the required skills to lead the company. If a family nurtures a member with requisite skills, values, to keep shareholders, key customers, and suppliers loyal to the business, then family leadership is the best option. As the business grows in dimension, differential capabilities are required to run the business competitively, hence, inducting talented individuals as professionals is a better option. A family must be realistic about the talents available internally.

This case is restricted to sports family business entrepreneurship in the context of India, but has a great learning towards multigenerational entrepreneurship.

The case is original with the family in its fourth generation, the youngest looking to diversify and professionalize the business, set his family dreams of setting up the biggest sports mall in India.

This paper aims to show that the experience of workers on the margins of international business is akin to the funeralesque. The funeralesque is understood as the appropriation of the value generated by workers across the production networks of international business.

Drawing from the engagement with crematorium workers, the narratives of workers are articulated, describing the insecurities and injustices experienced by them. The authors draw from six-month-long qualitative engagement with seven workers in a crematorium in Ahmedabad, India.

The experience of marginal subjects provides important insights into how international business, in conjunction with states, structures inequality for marginal subjects. Precariousness, social exclusion, low wages and subjectivities of humiliation are the experiences of marginal subjects. The reproduction of marginality in globalising cities is an important element of the funeralesque through which extraction and re-distribution of value across international networks is legitimised.

In understanding international business as the funeralesque, the authors demystify the power relations constituted by it. The authors provide a metaphor for dethroning the legitimacy of international business and indicate that its modern practices are similar to the practices of value appropriation that occur in a funeral.

The authors develop the metaphor of the funeralesque to gain insights into the experiences of workers on the margins of international business. The authors are, thus, able to theorise the underbelly of globalising cities in a poetic, subversive way.

In the present context of a health-concious society, management of pharmaceutical supply chains has become more complex because it involves the life-saving interest of human being and requires the participation of different stakeholders such as pharmaceutical manufacturers, wholesalers, distributors, customers, information service providers and regulatory agencies. Limited research is available in the area of pharmaceutical supply chains. This paper aims to find the gaps in the literature by reviewing research papers on different strategic issues of supply chain management in the pharmaceutical sector.

In total, 136 research papers, mainly from refereed international journals, were reviewed to identify the issues of supply chain management (SCM) in the pharmaceutical supply chain. On the basis of a review, gaps are identified and research agenda is proposed.

It is observed from review that the pharmaceutical sector is not widely researched in developing countries because of many complexities in this supply chain. The share of pharmaceutical firms in the global market is also not very significant. Based on an extensive review of pharmaceutical supply chains, research gaps are identified in different areas such as inventory management, new product development, process development, capacity planning, network design, plant design, pipeline and development management, outsourcing logistics activities, reverse logistics, Lean manufacturing, green SCM and implementation of E-business processes and performance management. These strategic issues have been further classified into three broad categories, i.e. resources, processes and performance.

This paper explores major strategic areas of pharmaceutical supply chains for research. Findings of the paper will be highly useful for researchers to decide direction of future research.