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This paper aims to investigate the effect of CaF₂ (calcium fluoride) addition as a solid lubricant on the friction and wear behaviour of sintered Fe-Cu-C materials under different loads.

In this study, the effects of CaF₂ added in varying weight percentages on the friction-wear properties of Fe-2Cu-0.8C alloys are investigated. Five Fe-2Cu-0.8C-based compositions comprising CaF₂ in 0, 3, 6, 9 and 12 Wt.% were prepared using the single-stage compaction and sintering technique. Friction coefficient, wear loss, hardness and compressive strength of the specimens were measured. The worn-out surfaces were analysed using a scanning electron microscope. Friction and wear tests were carried out on pin-on-disc machine under dry sliding conditions at room temperature.

The alloy with 3 Wt.% CaF₂ was found to be useful in improving wear and friction properties, whereas higher contents of CaF₂ resulted in increased wear and friction. Apart from enhanced tribological properties, a slight decrease in the compressive strength was also observed in the 3-Wt.%-CaF₂-added sample. Adhesion and abrasion were the prominent wear types observed during this study.

A new self-lubricating composite is developed where CaF₂ is used as a solid lubricant in a Fe-Cu-C-based matrix. CaF₂, being a high-temperature lubricant, is tried and tested for friction and wear at room temperature, and the results show that the addition of CaF₂ in Fe-Cu-C improved its friction and wear properties. Thus, the developed material can be used for antifriction applications.

The subject area is strategy and business.

The case can be used for MBA students. This is equally effective in short courses meant for low-to-mid-level working executives. The case is suited for classes in strategy, general marketing, media management and family business courses.

Dainik Jagran – a vernacular daily – is the most read newspaper in India. Under the banner of Jagran Prakashan Ltd.; which is one of the leading media houses in India, the success of Dainik Jagran has been an outcome of the strategic marketing decisions taken by its founder and his successors in the post-independence era. With extensive circulation, it created a large readership base and took bold decisions to launch multi editions to its daily through a series of acquisitions, mergers and consolidations from 1975 to 2010, enabling it to step into product diversification. Readership surveys, investments in technology, advertising, regular branding events and smart phone applications are a few tools that helped. While the group has diversified into other industries, there is an underlying anxiety about the future prospects of its newspaper business. With the onslaught of online news dailies, will Dainik Jagran be able to expand and maintain its readership base using its previous business and marketing strategies? Or is it time to change strategies for businesses in the newspaper and allied media industry in India?

The study has the following outcomes: application of value chain concept in businesses serving two-sided markets; application of environmental analysis, Porter’s five forces analysis and related strategy concepts; and learning to critically approach and develop a sustainable growth strategy framework for a successful family-run newspaper business in India.

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CSS 11: Strategy.

The purpose of this paper is to present and solve the problem of adaptive beamforming (ABF) for a uniform linear array (ULA) as an optimization problem. ABF mainly concerns with estimation of weights of antenna array so as to direct the major lobe in the direction of desired user and nulls in the direction of interfering signals with reduced side lobe level (SLL).

The potential of gravitational search algorithm is explored to optimize multi-objective fitness function for ABF using MATLAB software.

The performance of the algorithm has been compared by considering different number of interference signals at different power levels. The proposed algorithm presents good convergence rate and accurate steering of main lobe and nulls with reduced SLL compared to the well-known ABF technique, namely, minimum variance distortionless response (MVDR) and previously reported results. The simulation results are presented in tabular form.

The present work is limited to simulation. The researchers are encouraged to solve the problem of ABF using the proposed approach in hardware.

The application of proposed algorithm is to optimize multi-objective function for ABF with reduced SLL in linear antenna arrays.

Augmented reality (AR) integrates the digital world with the real world and thus, provides a real-time experience to the users. With AR, the immediate surroundings become a learning platform for the users. The perception of the products has been enhanced many times with AR; thus, enriching user experience and responsiveness. The purpose of this paper is to bring forth the basics of AR and provide an overview of the research work carried out by researchers in the implementation of AR in different sectors.

This paper summarizes the usefulness of AR in different industries. The authors have identified the peer-reviewed research publications from Web of Science, Scopus, Google Scholar, etc. The selection of literature has been made based upon the significance of AR in recent times. The industries/sectors where AR has been implemented successfully have been considered for this paper. The paper has been divided into various sections and subsections to bring more clarity to the readers.

This paper presents a brief and a precise information on Industry 4.0 and AR. The basic working of AR system and its implications have also been discussed. The preference of AR over virtual reality (VR) has also been deliberated in this paper. The authors have presented the usefulness of AR in different sectors such as smart factories, ship yard building, online shopping, surgery and education. This paper discusses the AR-ready procedures being followed in these sectors.

AR has been an add-on to VR systems. The processes in industries have become very handy and informative with AR. Because the application of AR in different sectors has not been discussed in a single paper; thus, this work presents a systematic literature review on the applications of AR in different sectors/industries.

In the last 10 years, India has amended its laws dealing with sexual offences against women with the changes ranging from increasing terms of imprisonment for the offence of rape to state-funded compensation schemes for women and child victims. In this regard, challenges persist for the agencies of the criminal justice system in India especially the courts to realise the vision of restorative justice as these forums have to navigate the relevant statutory provisions and binding precedents. This chapter seeks to analyse the challenges faced by courts in proper reintegration of victims and offenders of sexual offences, the institutional responses of the courts and suggests reforms to the criminal justice system in India in consonance with the principles of restorative justice acknowledged in the restorative justice movement in the international discourse.

The purpose of this study is to assess the effect of chicken breeds on quality characteristics of meat nuggets.

The formulation of meat nuggets prepared from meat of Cobb-400, Vanraja, Aseel and Kadaknath separately consisted of 60 per cent lean meat. The emulsion was prepared by standard method and moulded into nuggets. Cooking was performed under pressure (120°C/15 Psi for 30 min).

Emulsion and cooked nuggets both showed no significant differences in pH values among the breeds. Higher moisture and fat content was observed in emulsion and nuggets prepared from Cobb-400, while respective protein and ash was maximum in Kadaknath and Vanraja meat-based emulsions and nuggets. The per cent emulsion stability (87.04 ± 0.45) and cooking yield (85.24 ± 0.06) was reported highest in Cobb-400, which indicates the better water holding capacity and suitability of Cobb-400 meat for the development of nuggets at six weeks of age. The mean sensory scores for colour and appearance (7.12 ± 0.28), as well as flavour (7.00 ± 0.04), were significantly (p < 0.05) higher in Cobb-400 nuggets and lowest in Kadaknath (6.21 ± 0.03 and 6.65 ± 0.06). However, no significant differences were noticed in other sensory attributes among treatments.

The fatty acid and amino acid profile analysis may be helpful to understand the original nutritional difference in prepared nuggets.

The study will be off immense help in optimum utilization of meat of locally available chicken breeds for breed-specific and cost-effective product formulations.

The products will be acceptable to all commodities because it is made up of chicken meat.

The effect of chicken breeds on meat nuggets is relatively new aspect and essential to establish suitability of meat of locally available chicken breeds for product development.

This study aims to provide a rich learning opportunity from COVID-19 crisis for making resilient supply chain by adopting new strategies for the procurement system.

The systematic literature review has been conducted from the year 2012 to 2022 with the objective of developing procurement system for resilient supply chain. Fifty-four research papers are selected for this study.

The study exhibits that procurement function makes a significant contribution in creating supply chain resilience in the time of COVID-19 pandemic. The COVID-19 emergency has enforced companies to operate in new ways to face supply chain disruptions. The new strategies and actions appropriate for resilient procurement system have been identified.

This study is limited to the papers that were indexed in the Scopus database. It has also been limited to the procurement function and supply chain resilience.

This research highlights strategies for supply chain resilience to improve the business performance in COVID-19 or similar types of crisis.

The originality of this paper is to identify the strategies and new practices followed in procurement function to improve the supply chain resilience. This study suggests directions for future research on the integration of procurement and manufacturing for making resilience in the supply chain.

This study aims to enhance the understanding of impulse buying in grocery stores, where such purchases are pervasive and consumers face greater decision fatigue and diminished willpower than in more frequently examined retail environments. The intent is to demonstrate the influence of variables known to affect impulse buying in other environments on grocery shopping behavior, identify and profile segments that vary along those constructs and reveal how those segment characteristics help to explain impulse buying differences.

A purposive sample of 234 grocery shoppers approached at the point of purchase in a metropolitan area in Northeastern USA completed scales for theoretically derived variables and reported on their impulse purchases.

Anxiety, perceived financial pressure (PFP), novelty/variety seeking and shopping enjoyment positively influenced, whereas need for cognition had a negative effect on impulse-purchase activity. Two distinct segments of impulse buyers emerged: anxious and innovative shoppers. Anxious shoppers were higher in anxiety, PFP and compulsive buying, whereas innovative shoppers had higher levels of need for cognition and novelty/variety seeking.

The evidence for the dominance of anxiety and novelty/variety seeking as key motivators of distinct segments of impulse buyers in grocery stores is unique to this study. Results yield new insight on tension between the effects of motivational variables on the immediate impulse buying decision and post-purchase evaluation and add precision to marketers’ efforts to encourage spontaneous in-store decision-making.

This case describes the experience of Kanpur Confectioneries Private Limited (KCPL), a family managed company, in being a contract manufacturer for A-One Confectioneries Private Limited. The alliance had worked to the advantage of KCPL. It had prospered as a profitable contract manufacturer. It had used the surplus to diversify into unrelated businesses. The family members, however had doubts regarding the employment opportunities provided by the move. They were not sure whether the progress was sustainable. Alok Kumar Gupta, Chairman and Managing Director of KCPL, along with his brothers and son, is required to review the strategy and performance of his company and develop a course of action for the future.