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In this paper, a new front end converter (FEC) topology has been proposed for the switched reluctance (SR) motor drive. This study aims to present the performance analysis of FEC-based SR motor drive using various types of control schemes like conventional proportional integral (PI) controller, fuzzy logic controller (FLC) and fuzzy-tuned proportional integral controller (Fuzzy-PI).

The proposed FEC-based SR motor drive with various control strategies is derived for the torque ripple minimization and speed control.

The steady state and the dynamic response of the FEC-based SR motor drive are analyzed using three different controllers under change in speed and loading conditions. The Fuzzy-PI-based control scheme improves the dynamic response of the system when compared with the FLC and the conventional PI controller.

The hardware prototype has been implemented for the FEC-based SR motor drive by using the Xilinx SPARTAN 6 FPGA processor. The experimental verification has been conducted and the results have been measured under steady state and dynamic conditions.

Optifit, an international brand of fitness equipment, had entered the Indian market in 2010 and had rapidly opened 45 stores in 8 years in the four metros (NCR region, Mumbai, Chennai and Kolkata). Jaiveer Roy was identified by Pravin Gupta (South Zone head) and Raghav Mehta (HR head) to join as Optifit's Store Manager for its Alwarpet branch, Chennai, a store that had leadership difficulties from the day it started in May 2018. Roy joined the store in May 2018 and did very well soon after his appointment to the store. However, in less than three months, both Roy's and his store's performance began to suffer and his relationship with Gupta began to crumble. This case highlights issues in people management, especially support for people selected for leadership positions and examines the performance indicators of an individual's performance at a broader level. The case also points towards the mistakes or errors leaders may commit vis-a-vis their own role as a leader and mentor.

Based on positive organizational scholarship, this study aims to examine the role of faculty engagement in mediating the relationship between quality of work-life (QWL) and organizational commitment. The paper also analyses how spiritual leadership moderates the relationship between QWL and faculty engagement.

The data was collected through structured questionnaires from undergraduate and postgraduate teachers working in various business schools across major cities in India. The sample was selected through the snowball sampling technique. The sample size was 486, and analysis was done through the structural equation modelling approach using the bootstrapping method.

Findings indicate that faculty engagement mediates the relationship between QWL and organizational commitment among teachers. Furthermore, results show that educational institutions that practice spiritual leadership support higher positive psychological and emotional states of engagement.

The paper provides an integrated model of engagement, commitment and QWL through a study of mediation and moderation effects and adds value to the psychology and workplace spirituality literature. There is the future scope for further generalizations of the model in different geographical contexts to analyse the influence of other leadership styles.

Furthermore, it would help educational institutions to design QWL strategies for engaging teachers psychologically, emotionally and cognitively by accelerating employees’ positive emotions and behaviours. Finally, the paper shows implications for developing the QWL strategies to create a committed and engaged workforce through spiritual leadership.

The paper contributes to the academic literature by investigating interrelationships among variables from a positive organizational scholarship perspective. The paper would help practitioners to comprehend the importance of spiritual leadership in educational institutions.

The learning outcomes are as follows: learning about the concept of informal innovation in comparison with the formal innovations; understanding the drivers and barriers of informal innovation in an organisation; identifying the enablers of informal innovation in an organisation; and analysing the outcomes of informal innovation in non-monetary/non-financial/non-pecuniary terms.

The case study emphasises the importance of informal innovations in the manufacturing industry. The case is an attempt by the authors to bring about a clear distinction between the formal and informal open innovations.

The teaching case can be used for undergraduate- and post-graduate-level courses such as BBA, MBA and executive MBA.

Teaching notes are available for educators only.

CSS 11: Strategy.

The study evaluates the accident-adjusted dynamic efficiency of public bus operators providing bus transportation services in eight major metropolitan cities of India.

The slack-based measure (SBM)–undesirable window analysis approach is used to gauge the dynamic efficiency levels and identify the sources of inefficiency in bus transportation services. This innovative approach integrates the SBM model developed by Tone (2001, 2004) and the window analysis approach of Charnes et al. (1985). The main advantage of this approach is that one can explicitly incorporate the number of accidents in the production technology specification as an undesirable (bad) output and potently handle the issue of the “curse of dimensionality” in a small sample like ours.

The key empirical findings suggest wide variations in average efficiency levels across sample bus operators in metropolitan cities. The Chennai Transport Corporation is observed as the most efficient and consistent bus operator due to its most stable efficiency performance. The results additionally unveil that the role of managerial inefficiency was diminutive, and the scale-related issues were the real cause of sub-optimal or supra-optimal behaviour of sample bus operators in the resource-utilisation process.

There is an urgent requirement for effective policy intercessions to mitigate the sizeable observed inefficiency in the production process and resolve scale-related issues of public bus operators offering transit services in major metropolitan cities of India.

This paper is maybe the first to assess the dynamic efficiency of public bus transit systems in India's major metropolitan cities after treating accidents.

The learning outcomes of this case study are to understand the business-to-business (B2B) consumer outlook on mental health care in emerging markets; analyse the challenges faced in creating a need for mental health care in Indian workplaces; explore the business attractiveness of the B2B model and understand the business potential of the B2B segment at heyy,; and contemplate different innovative strategies that could change consumer mindset on mental health care in emerging markets.

Ankit, the founder and CEO of heyy, was facing a conundrum. “heyy,” was built on normalizing mental well-being at workplaces. His mental health-care app heyy, had crossed 50,000 subscribers within a few months of launch. The mobile app was designed to spread mental health awareness and provide various levels of mental well-being interventions. Business-to-consumer and B2B customer segmentation had been targeted by this start-up. The B2B space consisted of employees working with partner organizations. The adoption rates of employees using the features of heyy, declined after the initial app download. The employees had yet to fully become acclimatized to the features of heyy,. Exploring the business potential and investigating the business attractiveness of the B2B segment were the focus of the present study. Ankit contemplated various strategies he could adopt to increase user adoption of “heyy,” services by employees in his partner organizations. The case study strives to address the question – “What are the risks faced by organizations when entering the mental health-care industry in emerging markets like India, where mental health care is still not openly discussed?”

This case study is designed to be taught as part of the “entrepreneurship development” and “strategic management” courses for undergraduates, postgraduates and students of executive programmes in management. Students need to be aware of basic strategic management concepts such as BCG matrix, SWOT analysis and business canvas before working on this case study, so they could dissect the case from multiple perspectives to get a comprehensive outlook on the case.

Teaching notes are available for educators only.

CSS 11: Strategy.

Induction heating applications aided by power electronic control have become very attractive in the recent past. For cooking applications, power electronics circuits are very suitable to feed power to multi loads with an appropriate control technique. The purpose of this paper is to develop a three leg inverter to feed power to three loads simultaneously and independently.

Pulse density modulation control technique is used to control the output power independently with constant switching frequency.

Multi-load handling converter with independent power control is achieved with reduced number of switching devices (two switches/per load) with simple control strategy.

The proposed system is simulated in MATLAB/Simulink, and the thermal analysis is carried out in COMSOL multi-physics software. The hardware realisation is performed for a 1 kW prototype with 20 kHz switching frequency and 10 kHz pulse density modulation frequency. PIC16F877A microcontroller is used to validate the experimental results for various values of control signals (D_PDM). The simulation and experimental results are in good agreement and validates the developed system.

Composite materials have revolutionized the aerospace industry by offering superior structural qualities over traditional elements. This study aims to focus on the development and testing of bamboo natural fiber-based composites enhanced with SiO₂ nanoparticles.

The investigation involved fabricating specimens with varying nanoparticle compositions (0, 10 and 20%) and conducting tensile, flexural, impact and fracture toughness tests. Results indicated significant improvements in mechanical properties with the addition of nanoparticles, particularly at a 10% composition level.

This study underscores the potential of natural fiber composites, highlighting their environmental friendliness, cost-effectiveness and improved structural properties when reinforced with nanoparticles. The findings suggest an optimal ratio for nanoparticle integration, emphasizing the critical role of precise mixing proportions in achieving superior composite performance.

The tensile strength, flexural strength, impact resistance and fracture toughness exhibited notable enhancements compared with the 0 and 20% nanoparticle compositions. The 10% composition showed the most promising outcomes, showcasing increased strength across all parameters.

The study aims to understand why women-owned microenterprises (WOMEs) in India experience a lower growth rate, where growth can be represented in increments in the venture’s size or scope. There is no conclusive understanding of the factors that affect the sustained growth of WOMEs in India.

What personal, social and economic factors support or hinder the choice, growth and sustainability of women-owned ventures? What role do institutional factors (government, nongovernment organizations (NGOs), self-help groups and microfinance institutions) play toward the sustainability of WOMEs? The answers to these questions were obtained through a qualitative design by interviewing 30 micro women entrepreneurs from Tamil Nadu, a Southern state of India and one of the largest hubs for WOMEs and their responses were content analyzed using NVivo 12 software.

The findings capture and apply the fundamentals of two key theoretical perspectives, resource-based view (RBV) and self-determination theory (SDT), in identifying the links between the individual, social and economic factors and their combined effect on the sustained growth of women-owned micro businesses. The findings add value in identifying the ingrained cultural norms and traditions and several internal and external factors that support or challenge the growth of WOMEs. This study highlights that the interventions by the government need to be strengthened for the growth and sustainability of WOMEs.

The study’s findings provide suggestions to policymakers, banks, funding agencies, financial institutions and NGOs to design applicable policies and schemes toward the sustained growth of WOMEs.

This study contributes toward a better understanding of the trends in the context of WOMEs from an Indian context. This topic has received little attention in the academic literature. Second, the study’s conceptual contribution is an application of SDT and RBV to understand and categorize the enablers and deterrents in the path of growth of WOMEs, which is a novel pursuit.

The purpose of this study is to explore the effects of aerospike and hemispherical aerodisks on flow characteristics and drag reduction in supersonic flow over a blunt body. Specifically, the study aims to analyze the impact of varying the length of the cylindrical rod in the aerospike (ranging from 0.5 to 2.0 times the diameter of the blunt body) and the diameter of the hemispherical disk (ranging from 0.25 to 0.75 times the blunt body diameter). CFD simulations were conducted at a supersonic Mach number of 2 and a Reynolds number of 2.79 × 10⁶.

ICEM CFD and ANSYS CFX solver were used to generate the three-dimensional flow along with its structures. The flow structure and drag coefficient were computed using Reynolds-averaged Navier–Stokes equation model. The drag reduction mechanism was also explained using the idea of dividing streamline and density contour. The performance of the aero spike length and the effect of aero disk size on the drag are investigated.

The separating shock is located in front of the blunt body, forming an effective conical shape that reduces the pressure drag acting on the blunt body. It was observed that extending the length of the spike beyond a specific critical point did not impact the flow field characteristics and had no further influence on the enhanced performance. The optimal combination of disk and spike length was determined, resulting in a substantial reduction in drag through the introduction of the aerospike and disk.

To predict the accurate results of drag and to reduce the simulation time, a hexa grid with finer mesh structure was adopted in the simulation.

The blunt nose structures are primarily employed in the design of rockets, missiles, and re-entry capsules to withstand higher aerodynamic loads and aerodynamic heating.

For the optimized size of the aero spike, aero disk is also optimized to use the benefits of both.