Search results

A description of an experimental investigation of a round air jet projected parallel to a wall and the resulting velocity profiles, maximum velocity decay and the rate of jet growth. This paper concerns an experimental investigation of a round air jet projected parallel to a wall. Experiments were carried out to establish the shape of the velocity profiles, the decay of maximum velocity and the rate of growth of the jet. The results are compared with Tollmien's theory for the free jet. All data are presented in a form readily available for design purposes.

Digital humanities research platform for biographies of Malaysia personalities (DHRP-BMP) was collaboratively developed by the Research Center for Chinese Cultural Subjectivity in Taiwan, the Federation of Heng Ann Association Malaysia, and the Malaysian Chinese Research Center of Universiti Malaya in this study. Using The Biographies of Malaysia Henghua Personalities as the main archival sources, DHRP-BMP adopted the Omeka S, which is a next-generation Web publishing platform for institutions interested in connecting digital cultural heritage collections with other resources online, as the basic development system of the platform, to develop the functions of close reading and distant reading both combined together as the foundation of its digital humanities tools.

The results of the first-stage development are introduced in this study, and a case study of qualitative analysis is provided to describe the research process by a humanist scholar who used DHRP-BMP to discover the character relationships and contexts hidden in The Biographies of Malaysia Henghua Personalities.

Close reading provided by DHRP-BMP was able to support humanities scholars on comprehending full text contents through a user-friendly reading interface while distant reading developed in DHRP-BMP could assist humanities scholars on interpreting texts from a rather macro perspective through text analysis, with the functions such as keyword search, geographic information and social networks analysis for humanities scholars to master on the character relationships and geographic distribution from personality biographies, thus accelerating their text interpretation efficiency and uncovering the hidden context.

At present, a digital humanities research platform with real-time characters’ relationships analysis tool that can automatically generate visualized character relationship graphs based on Chinese named entity recognition (CNER) and character relationship identification technologies to effectively assist humanities scholars in interpreting characters’ relationships for digital humanities research is still lacking so far. This study thus presents the DHRP-BMP that offers the key features that can automatically identify characters’ names and characters’ relationships from personality biographies and provide a user-friendly visualization interface of characters’ relationships for supporting digital humanities research, so that humanities scholars could more efficiently and accurately explore characters’ relationships from the analyzed texts to explore complicated characters’ relationships and find out useful research findings.

When the factors affecting health expenditures are examined in the literature, it is seen that one of the most important factors is income. In this context, the purpose of this study is to investigate the relationship between out-of-pocket health expenditures and disposable personal income and revealing the income elasticity of health expenditures.

Therefore, short/long-term coefficients were obtained by analyzing Westerlund (2007) co-integration analysis and pooled mean group (PMG) regression methods for 22 European Union (EU) member states during the period 2003–2017. In addition, a comparison of the long-term coefficients for each country was obtained with augmented mean group (AMG) estimator.

The results of the AMG and PMG tests show that the long-term coefficients between disposable personal income and health expenditures are 0.83 and 0.97, respectively. These results imply that there is a significant relationship between the variables, and that health care should be categorized in the group of normal goods. However, the fact that the long-term coefficient is very close to 1, despite being classified in the category of necessity goods, requires more care to be taken in evaluating whether health services are luxury goods or necessity goods.

The use of second generation econometric tests on both cross-sectional dependence and heterogeneity demonstrates the value of the study. On the other hand, obtaining similar results by investigating the relationship between variables using different appropriate econometric models reveals the importance of the methodology used in this study. It reveals important details in terms of the literature regarding the long-term and short-term results obtained in this study.

The case presents an ideal platform for discussing the branding strategy, brand elements and the factors that contributed to success of an entrepreneurial venture in the quick-service restaurant (QSR) segment. Further, it enables students to discuss changes that are necessitated as the firm looks for new growth avenues. After working through the case and assignment questions, students will be able to analyze the entrepreneurial journey of a startup in red ocean markets by assessing the factors that contributed to its success; comprehend the importance of branding strategy for small business – choosing/designing of brand elements and selecting the positioning strategy; and assess changes needed in the branding strategy over time and devise strategies for the continued success of the firm.

Kolkata-based QSR chain Wow! Momo was bootstrapped with a meager INR 30,000 in 2008 by two school friends Sagar Daryani and Binod Kumar. It went on to become India’s Wow! Momo very first QSR specializing in momos. By the year 2019, Wow! Momo was dishing out India’s favourite street food, “momos” from 300 outlets across 15 cities. It also claimed to have captured 90% market share in the organized momo business. The startup grew at a CAGR of over 50% between 2015 and 2019 and reported INR 1.19bn revenue in financial year 2019 with an EBITDA of 9.3%. Wow Momo Foods Pvt. Ltd (WMF), the parent company of Wow! Momo, had tasted stupendous success within a short period and set an ambitious goal of achieving revenue of INR 10bn by 2023–2024. Wow! Momo had achieved top of mind recall among the target customers and was also vying for the same share of wallet as formidable international giants such as McDonald’s, Domino’s, Burger King and KFC. However, compared to these large players, Wow! Momo offered a limited menu and a smaller average ticket size. At the same time, Wow! Momo’s market share was also threatened by a host of branded momo players that offered a similar menu and pricing. Both these factors did not argue well for WMF’s mammoth growth objective. Achieving revenue of INR 1.19bn in a matter of just 10 years was no small feat, but reaching targeted INR 10bn in half that time needed a different game plan altogether. The founders clearly needed to rethink their strategies for the next phase of growth. What would be the next growth driver for the company? Should it look for greener pastures outside India? Was it time to diversify the menu and think beyond momos? If so, then should new items be added to existing menu or a new brand be launched altogether? The case maps the journey of two entrepreneurs as they went on to set up a successful QSR chain. It examines their trials and tribulations as well as successful implementation of marketing strategy. It also looks at the dilemmas faced by a startup as it searches for new avenues for growth.

Graduate and postgraduate courses in Management.

Teaching Notes are available for educators only.

CSS 8: Marketing.

The case explores information technology (IT) company Mindtree’s journey of 20 years from the time it was founded in 1999 to be different from others, and how it became a target for acquisition by an Indian diversified conglomerate in 2019. It offers insights into developing organizational culture and values in an organization, threats faced by a company when promoters dilute their shareholding, and the strategies followed by the acquirer and the target firm. It also deals with the challenges in the acquisition of a knowledge service digital firm. After working through the case and assignment questions, students will be able to: identify the circumstances under which a company can become a target for hostile takeover; describe motivations of the acquirer firm in an acquisition; distinguish between acquisition and hostile takeover, and discuss salient features of Securities and Exchange Board of India (substantial acquisition of shares and takeover) regulations, 2011; list the defenses a target firm can adopt to ward off hostile acquirer; explore strategies followed by acquirer and target firms; analyze important ingredients of organization culture, and importance of cultural congruence in an acquisition; and discuss challenges faced by an acquirer in India, namely, legal, retention of clients and key people in the target firm particularly in hostile environment.

The case explores how ten IT professionals founded mid-tier IT services company Mindtree in 1999 in Bengaluru, India (home to Infosys and Wipro) to be different from others – by inserting themselves at a higher level in the value chain, being philanthropic as a part of broader business strategy to attract a certain kind of employee and customer. It developed a culture of equality, consideration and respect. Its attrition rate of 12 to 13 per cent was significantly lower than the Industries. Mindtree crossed annual revenue of US$1bn for FY 2019 and was growing at twice the industry’s growth rate. The most attractive part was that its proportion of revenue from digital services was about 50 per cent as compared to 25-35 per cent of other services vendors. With time, the share of promoters/founders declined and increased one investor’s shareholding of V. G. Siddhartha and his related entities. In early March 2019, the promoters’ stake was 13.32 per cent while Siddhartha had 20.32 per cent. Larsen and Toubro (L&T) one of India’s conglomerate entered into a share purchase agreement on March 18, 2019 with Siddhartha to acquire his 20.32 per cent stake. Immediately, L&T asked its broker to purchase up to 15 per cent of share capital of Mindtree at a price not exceeding INR 980 per share (each share of face value INR 10). This would trigger an open offer by L&T to purchase additional 31 per cent shares of Mindtree. The action of hostile takeover bid by L&T evoked emotional criticism from Mindtree founders. Mindtree efforts to defend itself could not materialize. L&T’s stake crossed 26 per cent on May 16, 2019. After Indian regulator SEBI’s approval, L&T’s open offer to buy shares from Mindtree shareholders commenced on June 17, 2019. The case examines motivation of the acquirer firm particularly when it is a conglomerate, and how a well-performing company became a target for hostile takeover. It looks at vulnerabilities of a target firm, and defensive steps a firm can take to fence itself against such takeover. The case also explores how organizational culture is built in a people-oriented business, namely, digital services, and what role it plays in a merger of two firms.

The case is suited for postgraduate students of management, as well as those undergoing executive courses in management.

Teaching notes are available for educators only. Please contact your library to gain login details or email support@emeraldinsight.com to request teaching notes.

CSS 11: Strategy.

This paper aims to develop efficient and simple models for thermal distribution, melt pool dimensions and controlled phase change in the laser additive manufacturing (AM) of bulk and powder particles ceramic materials.

This paper proposes new analytical models for the AM of bulk and powder bed ceramic materials. A volumetric moving heat source, along with the complete melting of bulk and powder particle materials, is taken into account. Different values of laser absorption coefficient in solid and liquid states have been used to investigate the phase transformation. Furthermore, the pores and voids dimensions are also included in the modeling. Theoretical predictions have been compared with the experimental analyses and finite element simulations in laser to silicon nitride and laser to alumina interaction. The analysis focuses on the impact of laser power and scanning speed on the melt pool width and depth evolution into the bulk substrate and powder bed.

This study shows that the powder particles exhibit a higher thermal distribution value than the bulk substrate because of voids in the powder layer. The laser beam experiences multiple reflections in the presence of porosity/voids, thus increasing the surface absorption coefficient, which becomes relevant with the increment in the pore/void dimension. A direct relationship has been found between the laser power and melt pool dimensions, while the scanning speed displayed an inverse relationship for the melt pool width and length. Larger melt dimensions were inferred in the case of laser–powder particle interaction compared with laser–bulk substrate interaction. A close correlation was found between the analytical simulations, experimental investigations and numerical simulation results within the range of 4%–8%.

This paper fulfills an identified need to develop efficient and simplified models for ceramics laser AM by taking into account different laser absorption coefficients in solid and liquid form, voids and pores dimensions and controlled phase transformation to avoid vapors and plasma formation. The limitation of the finite element simulation model is that the solution is strongly dependent on the mesh quality and accuracy directly linked to the computation efficiency and time. A finer mesh requires a longer computing time than a coarse mesh. Finite element simulations require, however, specialized skills.

This paper constructs real wage series for nineteenth-century Algeria and Tunisia, and compares them with existing Egyptian and Syrian series. Archival sources are used for price and nominal wage data. Following Allen (2001), nominal wages are deflated with a consumer price index. The series are tested for robustness. Real wages were initially dispersed, but converged to similar levels by the end of the period. There is no evidence of a broad-based improvement in living standards over the period, with real wage series declining in Algeria, and stagnating in Egypt, Tunisia and Syria. The findings paint a less optimistic picture of living standards compared to other measures like GDP per capita and compared to some of the historical literature. Data for the Maghreb are scarce, and more work will need to be done on finding more wage and price observations.

The purpose of this paper is to propose a conceptual framework for ensuring employee championing behavior (ECB) during organizational change for business organizations in Bangladesh.

On the basis of previous literature, this paper proposed a framework for ensuring ECB during organizational change.

This paper proposed transformational leadership (TL), which enhances the championing behavior of the employee. In addition, valence, work engagement and trust in leadership act as potential mediators between TL and championing behavior. This paper also proposed organizational alignment (OA) as a potential moderator that influences ECB in the context of organizational change.

This paper highlights numerous influential factors that enhance ECB. This proposed conceptual framework will be validated by the empirical evidence in future research.

This paper provides new insights for business leaders to understand the importance of ECB during organizational change. Moreover, this research underlined the effectiveness of valence, work engagement and trust in leadership and OA to nurture ECB in the time of organizational change, which helps managers of the business organizations to make efficient strategies to tackle organizational change.

This paper adopted Kurt Lewin’s change management theory and integrated with different factors associated with organizational change (TL, valence, work engagement, trust in leadership and OA) to propose a model to understand the mechanism of enhancing ECB in the context of change in Bangladesh’s business organizations.

This paper aims to focus on research work related to metamaterial-based sensors for material characterization that have been developed for past ten years. A decade of research on metamaterial for sensing application has led to the advancement of compact and improved sensors.

In this study, relevant research papers on metamaterial sensors for material characterization published in reputed journals during the period 2007-2018 were reviewed, particularly focusing on shape, size and nature of materials characterized. Each sensor with its design and performance parameters have been summarized and discussed here.

As metamaterial structures are excited by electromagnetic wave interaction, sensing application throughout electromagnetic spectrum is possible. Recent advancement in fabrication techniques and improvement in metamaterial structures have led to the development of compact, label free and reversible sensors with high sensitivity.

The paper provides useful information on the development of metamaterial sensors for material characterization.

The purpose of this study is to represent an attempt to empirically capture the impact of disinvestment on the financial and operating performance of 26 Bombay Stock Exchange (BSE) listed central public sector enterprises (CPSEs) in India which got divested through stock market mechanism during the time period of 2000–2014.

Through ratio analysis different ratios such as return on assets, return on equity, net income efficiency, debt equity, dividend payout and employment levels have been computed. Pre- and post disinvestment performance of these firms is examined through Wilcoxon signed-rank test. The present research endeavors to examine the impact of disinvestment through random effect panel data models in order to control the effect of other firm specific variables.

The overall results of the study indicate statistically significant fall in profitability ratios. The empirical results have not witnessed positive effect of disinvestment on the profitability of the CPSEs; rather, this effect has found to be negative. The possible reasons behind these negative results could be poor pre disinvestment financial health of CPSEs, negative rate of return on capital employed by PSEs and inefficiency which need to be tested empirically by future researchers.

The fact that government-owned firms are typically less proficient or at least less gainful than private-owned firms is widely hypothesized. Therefore, the disinvestment policy aims at dropping the participation of the public sector in the economic actions of the country in order to support the private sector. The present study is a first of its kind to study the impact of disinvestment on the profitability of the firms, which got divested through stock market mechanism since the year 2000 by applying both univariate and multivariate analysis.