Abhishek Kumar Singh and Krishna Mohan Singh
In the present work, we focus on developing an in-house parallel meshless local Petrov-Galerkin (MLPG) code for the analysis of heat conduction in two-dimensional and…
Abstract
Purpose
In the present work, we focus on developing an in-house parallel meshless local Petrov-Galerkin (MLPG) code for the analysis of heat conduction in two-dimensional and three-dimensional regular as well as complex geometries.
Design/methodology/approach
The parallel MLPG code has been implemented using open multi-processing (OpenMP) application programming interface (API) on the shared memory multicore CPU architecture. Numerical simulations have been performed to find the critical regions of the serial code, and an OpenMP-based parallel MLPG code is developed, considering the critical regions of the sequential code.
Findings
Based on performance parameters such as speed-up and parallel efficiency, the credibility of the parallelization procedure has been established. Maximum speed-up and parallel efficiency are 10.94 and 0.92 for regular three-dimensional geometry (343,000 nodes). Results demonstrate the suitability of parallelization for larger nodes as parallel efficiency and speed-up are more for the larger nodes.
Originality/value
Few attempts have been made in parallel implementation of the MLPG method for solving large-scale industrial problems. Although the literature suggests that message-passing interface (MPI) based parallel MLPG codes have been developed, the OpenMP model has rarely been touched. This work is an attempt at the development of OpenMP-based parallel MLPG code for the very first time.
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Abhishek Kumar Singh and Krishna Mohan Singh
The work presents a novel implementation of the generalized minimum residual (GMRES) solver in conjunction with the interpolating meshless local Petrov–Galerkin (MLPG) method to…
Abstract
Purpose
The work presents a novel implementation of the generalized minimum residual (GMRES) solver in conjunction with the interpolating meshless local Petrov–Galerkin (MLPG) method to solve steady-state heat conduction in 2-D as well as in 3-D domains.
Design/methodology/approach
The restarted version of the GMRES solver (with and without preconditioner) is applied to solve an asymmetric system of equations, arising due to the interpolating MLPG formulation. Its performance is compared with the biconjugate gradient stabilized (BiCGSTAB) solver on the basis of computation time and convergence behaviour. Jacobi and successive over-relaxation (SOR) methods are used as the preconditioners in both the solvers.
Findings
The results show that the GMRES solver outperforms the BiCGSTAB solver in terms of smoothness of convergence behaviour, while performs slightly better than the BiCGSTAB method in terms of Central processing Unit (CPU) time.
Originality/value
MLPG formulation leads to a non-symmetric system of algebraic equations. Iterative methods such as GMRES and BiCGSTAB methods are required for its solution for large-scale problems. This work presents the use of GMRES solver with the MLPG method for the very first time.
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Rituraj Singh and Krishna Mohan Singh
The purpose of this paper is to assess the performance of the stabilised moving least squares (MLS) scheme in the meshless local Petrov–Galerkin (MLPG) method for heat conduction…
Abstract
Purpose
The purpose of this paper is to assess the performance of the stabilised moving least squares (MLS) scheme in the meshless local Petrov–Galerkin (MLPG) method for heat conduction method.
Design/methodology/approach
In the current work, the authors extend the stabilised MLS approach to the MLPG method for heat conduction problem. Its performance has been compared with the MLPG method based on the standard MLS and local coordinate MLS. The patch tests of MLS and modified MLS schemes have been presented along with the one- and two-dimensional examples for MLPG method of the heat conduction problem.
Findings
In the stabilised MLS, the condition number of moment matrix is independent of the nodal spacing and it is nearly constant in the global domain for all grid sizes. The shifted polynomials based MLS and stabilised MLS approaches are more robust than the standard MLS scheme in the MLPG method analysis of heat conduction problems.
Originality/value
The MLPG method based on the stabilised MLS scheme.
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The case offers a study of change management in the pharmaceutical industry in India.
Abstract
Subject area
The case offers a study of change management in the pharmaceutical industry in India.
Study level/applicability
The case is designed for undergraduate and postgraduate students to examine strategic decisionmaking in the context of mergers and acquisitions (M&As), firm capabilities and management practices. In particular, it has important pedagogical lessons for businesses eager to start operations in emerging countries. Students learn to recognize the unique nature of the pharmaceutical market and the factors affecting the demand and supply of drugs, including the economics of generics. The case can be discussed in one class session of approximately one-and-a-half to two hours duration.
Case overview
In 2012, the pharmaceutical industry in India was undergoing dynamic changes. There was keen interest among MNC pharmaceutical giants to buy up Indian generic manufacturing companies since their revenues were drying up with the impending patent expirations of many blockbuster brand name drugs. Japan's Daiichi Sankyo's had taken over the largest Indian pharmaceutical company, Ranbaxy Laboratories, known for its heritage of process innovations and market leadership. However, after the acquisition, Ranbaxy slipped to third position in the domestic market and was facing multiple problems including net losses and falling share prices, cultural differences in management practices, recall of drugs from foreign markets and a US FDA ban on its manufacturing plants. Further, Ranbaxy had always been viewed as a national champion and a customer-friendly company but drug prices had increased after the merger causing problems of affordability. The new CEO of Ranbaxy was facing a dilemma: how to regain the company's position as the market leader. Students are asked to advise the CEO of Ranbaxy how to tackle the challenges arising from the integration of an Indian company with a Japanese company. More specifically, the case focuses on M&A as a strategy for growth and also touches on issues related to competition, regulation, innovation and corporate governance.
Expected learning outcomes
The case discusses the different motives behind the deal for Daiichi Sankyo and Ranbaxy and why it was a strategic move by both the alliance partners. The case also raises issues of corporate governance for the management of Ranbaxy and the need for a proactive corporate social responsibility (CSR) strategy. The case provides students with the opportunity to develop their analytical skills in a real-life setting and apply theoretical concepts to the consideration of the various issues raised by the acquisition deal.
Supplementary materials
Teaching notes are available; please consult your librarian for access.
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Roger T. Couture, Mohan Singh, Wayne Lee, Paul Chahal, Leonard Wankel, Margaret Oseen and Gary Wheeler
The study investigated the effects of two mental training strategies separately and combined on subjects’ shooting performance following an endurance march. Further, the study…
Abstract
The study investigated the effects of two mental training strategies separately and combined on subjects’ shooting performance following an endurance march. Further, the study examined the suitability of a ten‐session training programme for the police force. On Trial 1, following a three hour march, 44 subjects shot 25 rounds. Subjects were then randomly assigned to four groups (biofeedback, relaxation, combined biofeedback and relaxation and control). After two weeks of mental training, subjects performed both tasks again on Trial 2. A repeated two‐way ANOVA indicated a significant improvement (p < 0.01) in shooting accuracy by the combined group. Suitability for this mental training programme was strongly supported by the experimental groups (71 per cent to 80 per cent). Subjects were generally better able to relax and focus. They were also more aware of their body and their physiological control. Results are discussed in light of potential benefits for cognitive strategies in precision tasks following endurance activities.
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Justin Paul and Pragya Bhawsar
The purpose of this paper is to examine the rationale and synergies of a Japanese firm's acquisition of India's leading pharmaceutical firm, Ranbaxy, and to answer the following…
Abstract
Purpose
The purpose of this paper is to examine the rationale and synergies of a Japanese firm's acquisition of India's leading pharmaceutical firm, Ranbaxy, and to answer the following pertinent questions: could Ranbaxy have been able to survive and succeed, had the firm not gone for this strategic sale to a foreign firm? What is the rationale for this strategic sale immediately after undertaking many major acquisitions during the previous two‐year period? For what strategic reasons did a Japanese firm pay a premium price for this international acquisition?
Design/methodology/approach
An exploratory method was used in this study to analyze the rationale and synergies of the acquisition. The method of case writing has been followed as a design (case situation first, then goes back to the past, then comes back to the current situation).
Findings
The findings confirm that Ranbaxy got a premium price for agreeing to be acquired for their share (much higher price than the market price). Japanese firm Dai‐Ichi got greater market access and control of Ranbaxy, which were driving factors for them to pay a higher share price for Ranbaxy.
Originality/value
This original study gives insight into the points to be taken into consideration while thinking about international acquisitions.
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Brij Mohan Singh, Hitesh Tripathi, Sharad Srivastava and Gyanendra B. S. Johri
This study is an attempt to explore the role of homestays as a sustainable but strategic tool for fostering a greener future, focusing on their prevalence in Madhya Pradesh…
Abstract
This study is an attempt to explore the role of homestays as a sustainable but strategic tool for fostering a greener future, focusing on their prevalence in Madhya Pradesh, India. Homestays contribute to sustainable tourism by providing immersive experiences, supporting local economies, and minimising environmental impacts. The model offers economic benefits to hosts, promotes cultural exchange, and reduces the environmental footprint associated with conventional accommodations. The research analyses the distribution of homestays across different districts in Madhya Pradesh, revealing variations influenced by factors such as urbanisation, cultural appeal, and historical significance. High homestay counts in districts like Bhopal and Indore suggest an urban tourism focus, while lower counts in rural areas present untapped potential. The study discusses the reasons behind the observed disparities, including tourist attractions, infrastructure, and economic development. Despite their positive impact, homestays face challenges like cultural sensitivity, privacy concerns, and potential environmental impact. Addressing these challenges is crucial for ensuring the long-term success and sustainability of homestay initiatives in contributing to responsible and meaningful tourism.
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Brij Mohan Singh, Hitesh Tripathi and Gyanendra B. S. Johri
This study explores the significance of homestays in India as a tool for sustainable tourism, community development and cultural immersion. It begins by outlining the evolution of…
Abstract
This study explores the significance of homestays in India as a tool for sustainable tourism, community development and cultural immersion. It begins by outlining the evolution of tourism in India and the rise of homestays, emphasising their role in providing authentic local experiences. This chapter describes the characteristics of homestays and their cultural relevance in India, showcasing their growth across diverse regions. Case studies illustrate the positive impact of homestays on local communities. The literature review explores global perspectives on homestays, highlighting their contribution to reducing rural poverty and supporting community-based tourism. The research design employs secondary data to analyse the distribution of homestays in Indian states. The analysis section interprets the data, revealing patterns influenced by factors such as tourism promotion, cultural appeal and community involvement. The discussion emphasises the shift in traveller preferences towards immersive experiences and acknowledges challenges associated with homestays, such as quality concerns and regulatory issues. The study concludes by advocating for strategic development, supportive policies and awareness campaigns to ensure the authenticity and sustainability of homestay experiences. Overall, the research provides insights for stakeholders aiming to leverage homestays for sustainable tourism growth in India.