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1 – 10 of 14The purpose of this paper is to examine quadratic convergence of finite element analysis for hyperelastic material at finite strains via Abaqus‐UMAT as well as classification of…
Abstract
Purpose
The purpose of this paper is to examine quadratic convergence of finite element analysis for hyperelastic material at finite strains via Abaqus‐UMAT as well as classification of the rates of convergence for iterative solutions in regular cases.
Design/methodology/approach
Different formulations for stiffness – Hessian form of the free energy functionals – are systematically given for getting the rate‐independent analytical tangent and the numerical tangent as well as rate‐dependent tangents using the objective Jaumann rate of Kirchoff stress tensor as used in Abaqus. The convergence rates for available element types in Abaqus are computed and compared for simple but significant nonlinear elastic problems, such as using the 8‐node linear brick (B‐bar) element – also with hybrid pressure formulation and with incompatible modes – further the 20‐node quadratic brick element with corresponding modifications as well as the 6‐node linear triangular prism element and 4‐node linear tetrahedral element with modifications.
Findings
By using the Jaumann rate of Kirchoff stress tensor for both, rate dependent and rate independent problems, quadratic or nearly quadratic convergence is achieved for most of the used elements using Abaqus‐UMAT interface. But in case of using rate independent analytical tangent for rate independent problems, even convergence at all is not assured for all elements and the considered problems.
Originality/value
First time the convergence properties of 3D finite elements available in Abaqus sre systematically treated for elastic material at finite strain via Abaqus‐UMAT.
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Yam B. Limbu, Christopher McKinley, Rajesh K. Gautam, Ajay K. Ahirwar, Pragya Dubey and C. Jayachandran
The purpose of this paper is to examine the indirect effects of nutritional knowledge and attitude toward food label use on food label use through self-efficacy and trust, as well…
Abstract
Purpose
The purpose of this paper is to examine the indirect effects of nutritional knowledge and attitude toward food label use on food label use through self-efficacy and trust, as well as whether gender moderates this relationship.
Design/methodology/approach
A sample of Indian adults with multiple chronic conditions was surveyed about their nutritional knowledge, attitude, self-efficacy and use of food labels. Hypotheses were tested using Hayes’s (2013) PROCESS macro for SPSS.
Findings
The results show that nutritional knowledge and attitude toward food label use positively predict food label use through self-efficacy and trust. However, these mediation effects are moderated by gender such that the indirect relationship is stronger among men than women.
Practical implications
Food marketers and government agencies engaged in nutrition education campaigns should aim to increase patients’ confidence in comprehending food label information.
Social implications
Since food labels can be a valuable tool to help patients with chronic diseases to make informed decisions about their diet and lifestyle, regulators may consider mandating nutritional labels on foods to help them improve their food or dietary choices.
Originality/value
This study uniquely applies Fisher and Fisher’s (1992) information–motivation–behavioral skills model as a theoretical framework to examine the influence of nutrition knowledge and attitude toward food label use on food label usage of Indian patients with multiple chronic diseases.
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Lovejeet Kaur, Manju Puri, Kallur Nava Saraswathy, Shubha Sagar Trivedi and Mohinder Pal Sachdeva
Recurrent pregnancy losses (RPL), a major contributor of reproductive wastage, affect maternal health both physically and mentally. Folate and B12 (Vitamin B12) deficiency anemia…
Abstract
Purpose
Recurrent pregnancy losses (RPL), a major contributor of reproductive wastage, affect maternal health both physically and mentally. Folate and B12 (Vitamin B12) deficiency anemia is common in the reproductive age group women in developing countries like India. And due to proven role of folate in various maternal and fetal anomalies, women are routinely prescribed folic acid under various national policies. However, B12 supplementation is rare, despite known deleterious effects of its deficiency. The purpose of this paper is to understand RPL through anemia with special reference to folate and B12 imbalance.
Design/methodology/approach
Multiparous women with normal obstetric outcomes (n=135) and women with Idiopathic RPL (n=105) were recruited in the study. All women were non-pregnant and belonged to North Indian population. Hb, serum folate and B12 and plasma homocysteine were measured in all the women. Anemia was classified according to WHO guidelines (Hemoglobin (Hb)<12g/dL).
Findings
The incidence of Anemia was more among normal multiparous women (73 percent) as compared to women with RPL (60 percent). However, unlike folate deficiency anemia among controls, B12 deficiency anemia was observed in women with RPL. Moreover, these women, despite being less anemic, with high B12 deficiency and folate sufficiency (presumably due to folate supplementation) had more imbalanced vitamin metabolism, as evident from homocysteine levels. The study suggests that anemic or non-anemic deficiencies of B12 and folate among women with RPL may be combated by screening for both vitamins, rather than supplementing folate indiscriminately to all.
Research limitations/implications
One of the limitations is that ferritin levels for iron deficiency anemia could not be measured in this study.
Originality/value
The present study is the first study, to the best of our knowledge, where we looked for the role of imbalance of folate and B12 in women with RPL.
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Sagar Dnyandev Patil and Yogesh J. Bhalerao
It is seen that little amount of work on optimization of mechanical properties taking into consideration the combined effect of design variables such as stacking angle, stacking…
Abstract
Purpose
It is seen that little amount of work on optimization of mechanical properties taking into consideration the combined effect of design variables such as stacking angle, stacking sequence, different resins and thickness of composite laminates has been carried out. The focus of this research work is on the optimization of the design variables like stacking angle, stacking sequence, different resins and thickness of composite laminates which affect the mechanical properties of hybrid composites. For this purpose, the Taguchi technique and the method of gray relational analysis (GRA) are used to identify the optimum combination of design variables. In this case, the effect of the abovementioned design variables, particularly of the newly developed resin (NDR) on mechanical properties of hybrid composites has been investigated.
Design/methodology/approach
The Taguchi method is used for design of experiments and with gray relational grade (GRG) approach, the optimization is done.
Findings
From the experimental analysis and optimization study, it was seen that the NDR gives excellent bonding strength of fibers resulting in enhanced mechanical properties of hybrid composite laminates. With the GRA method, the initial setting (A3B2C4D2) was having GRG 0.866. It was increased by using a new optimum combination (A2B2C4D1) to 0.878. It means that there is an increment in the grade by 1.366%. Therefore, using the GRA approach of analysis, design variables have been successfully optimized to achieve enhanced mechanical properties of hybrid composite laminates.
Originality/value
This is an original research work.
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Meenu Singla and Robin Kaushal
COVID-19 pandemic is a global health emergency which posed new challenges to the organizations to adjust their ways of working by redefining approach to work culture. The…
Abstract
Purpose
COVID-19 pandemic is a global health emergency which posed new challenges to the organizations to adjust their ways of working by redefining approach to work culture. The objective of this paper is to study as to how COVID-19 has impacted organizational culture which can be sustained with good leadership style. The aim of the paper is to identify and analyze the change in organizational culture and leadership style flexibility adoption required during the pandemic.
Design/methodology/approach
This paper is based on qualitative research that focused on newspaper articles. In the paper, the authors made analysis of newspaper articles on NVIVO software published on culture and leadership from February to December 2021.
Findings
Three main themes that emerged across the study include the change in leadership perspective, organizational perspective and employee perspective to reshape the organizational culture. Companies that support on flexible working hours, work from home and virtual gatherings are likely to attract and retain the most talented employees.
Practical implications
The study gave useful insights to establish well-developed standard operating practices to manage the cultural change. The organizations which reinforce their leadership style to provide psychological support to its employees and amend the policies thereof, can best respond to the potentially damaging effects of COVID-19 to enhance the job satisfaction of its people.
Originality/value
The paper is among the very few studies that examined as how to sustain a good culture in an organization during tough times and how a leader should manage the entire team with the help of qualitative analysis through analysis of newspaper articles. The specific contribution of this paper is to align organizational culture with leadership based on democratic values and standards of legitimacy during tough times so that focus can be made on well-being of employees, strong work ethics and thereby increasing work commitment of the employees.
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Computer usage has become commonplace and there has been an increasing number of local efforts in organising indigenous information for individual and institutional utility…
Abstract
Computer usage has become commonplace and there has been an increasing number of local efforts in organising indigenous information for individual and institutional utility. Access to information online or in CD‐ROM media is now just a matter of money; at the same time access to indigenous information has remained a challenging effort both for the user and the infomediary. Information services/products of all kinds are being generated by various agencies in the government, public and private sectors and are emerging out into the Indian information marketplace. There are a number of abstracting journals, which, in a natural process of migration, are now available in dual formats – print as well as machine readable. Besides bibliographic information, service providers are generating factual information – as directories of all descriptions, financial and commercial data, full texts of case laws, export‐import policy and so on. In this paper an attempt is made to present an overview of some of the important electronic databases developed in India or on Indian topics.
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Navjot Sandhu and Javed Hussain
This paper investigates the mediating role of access to finance and entrepreneurial education for small and marginal farmers (SMFs) in the Indian northern state of Punjab…
Abstract
Purpose
This paper investigates the mediating role of access to finance and entrepreneurial education for small and marginal farmers (SMFs) in the Indian northern state of Punjab. Furthermore, it examines the inter-mediatory role of entrepreneurs and the access to finance in the promotion of innovation, development and consequently poverty alleviation.
Design/methodology/approach
To gain a deeper insight, we used a purposive sampling technique, involving in-depth, face-to-face interviews based on a semi-structured questionnaire amongst 185 farmers from the state of the Punjab in India. The combination of open ended and dichotomous questions amenable to the Likert scale, captured responses and the transcribed questionnaires were thematically analysed.
Findings
Using the analysis of the quantitative and qualitative responses, we explain the cause and consequences of the finance gap and the impact of poverty on household income and the debt levels of SMFs. The findings suggest that the expanding pool of SMFs is due to land ownership fragmentation that disenfranchises SMFs from accessing adequate finance thus limiting their ability to adapt to technological innovations, and therefore limiting their productivity and growth. This essentially limits their ability to transform their economic and social wellbeing. The findings from the data analysis suggest a lack of access to finance negatively impacts on SMFs' ability to use innovative practices, technologies and productivity. This adversely affects income level, access to education and social goods to propel them out of poverty. The findings advocate that government policy should focus on land reforms, which provide adequate access to finance to enable the adaption of technology and an access to markets to empower marginal farmers.
Research limitations/implications
Land fragmentation resulting with population growth in emerging economies continuously expands SMFs. To improve efficiency, productivity and entrepreneurial traits amongst SMFs, it is a pre-requisite to have an agile economy. However, in emerging economies such as India, the responses of 185 farmers suggest, a bespoke policy to promote the interest of SMFs through enabling them access to finance, technologies, training and education, continues to prove elusive. This novel empirical research provides evidence that demands that policymakers, commercial institutions and donors need to respond to the needs of SMFs to ensure food security and an optimal utilisation of farmland. The limitation of this research is that the sample is from one country, which limits its generalisation. The findings of this study could be enhanced by conducting comparative studies in other regions or economies.
Originality/value
This empirical study examined the barriers to enterprise for SMFs in the Indian Punjab; it examined the causes and consequences and the implications for food security for India. The findings of this study highlight the importance of developing the entrepreneurial capabilities of SMFs through effective education, training and above all through an adequate access to finance to enable them to adapt their technology. Furthermore, the findings make a case as to why SMFs are an integral part of the food chain and why it is necessary to enhance their efficiency, productivity and their access to finance.
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Keshab Ray and Meenakshi Sharma
There is a lacuna in research work in terms of understanding how Indian IT organizations can become global brands. Benchmarking has not received much attention in marketing…
Abstract
Purpose
There is a lacuna in research work in terms of understanding how Indian IT organizations can become global brands. Benchmarking has not received much attention in marketing literature due to lack of benchmarking framework, and IT organizations are yet to make progress in benchmarking. The purpose of this paper is to examine the impact of brand strength on global branding by developing a conceptual benchmarking framework for Indian IT organizations.
Design/methodology/approach
Semi-structured in-depth interviews are conducted with thirty middle-level managers from two Indian IT organizations, two US-based global IT organizations and one UK-based leading bank, which is a customer of these IT organizations.
Findings
Results show a positive relationship between brand strength and global branding, between customer loyalty and global branding, between brand loyalty and competitive advantage and between global branding and competitive advantage. Indian IT organizations can benchmark global IT organizations to improve delivering brand promise, positioning, awareness building and authenticity toward making Indian IT organizations future ready to address the entire breadth of opportunities in the evolving world of cloud and digital.
Practical implications
This research helps managers with a brand strength-based benchmarking framework toward global branding of Indian IT organizations.
Social implications
IT is instrumental for rapid growth of Indian’s economy. India should optimally utilize its greatest wealth, its human potential, with the latent global demand in IT through building global IT brands.
Originality/value
The originality of the study lies in conducting a qualitative study on global branding of Indian IT organizations and also proposing a conceptual benchmarking framework. The study further validates the model using qualitative analysis.
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Yatawattage Jayanie Malkila Yatawatta and Pournima Sridarran
In response to water scarcity in Sri Lanka, the government is implementing strategies such as rainwater harvesting, efficient irrigation, wastewater treatment and desalination…
Abstract
Purpose
In response to water scarcity in Sri Lanka, the government is implementing strategies such as rainwater harvesting, efficient irrigation, wastewater treatment and desalination. Initial efforts include the establishment of a desalination plant in Jaffna, with additional plans for the dry zones (DZ). The study aims to comprehensively identify the barriers to establishing desalination plants in the DZ and provide recommendations to mitigate these barriers. Additionally, this research provides valuable insights aimed at minimizing barriers to the construction of future desalination plants within Sri Lanka.
Design/methodology/approach
The study used qualitative methods, using an expert survey to identify current and future barriers, along with strategies for overcoming them. The collected data were analysed using the template analysis technique.
Findings
Regarding desalination plant establishment, various barriers such as high capital costs, high energy expenses, brine discharge, pollution, emissions, technical challenges, health concerns and waste disposal have been identified. However, specific strategies exist to address and mitigate each of these obstacles.
Practical implications
The study offers recommendations to environmental experts and government on expediting the approval procedures for desalination plants in Sri Lanka’s DZ. Adapted to Sri Lanka’s specific challenges, it highlights strategies and barriers essential for upcoming desalination projects. Furthermore, it emphasizes the financial advantages such as increased production and job creation resulting from establishing desalination facilities.
Social implications
Through this study, promoting sustainable practices and fostering community involvement, it aims to enhance livelihoods, accelerate economic development and improve overall well-being through reliable access to water. Additionally, the study aims to enhance understanding of the importance of desalination in alleviating water scarcity, promoting community engagement and ultimately facilitating improved living conditions, health outcomes and economic opportunities in Sri Lanka’s DZs.
Originality/value
This study provides crucial direction for decision-makers by highlighting the main barriers to the establishment of desalination plants in Sri Lanka and outlining practical solutions. Implementing these strategies helps meet the region’s increasing water demands, advance sustainable water management, improve the standard of living for nearby communities and promote the socioeconomic development of desalination plants in Sri Lanka’s DZ.
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Jayarama Pradeep, Krishnakumar Vengadakrishnan, Anbarasan Palani and Thamizharasan Sandirasegarane
Multilevel inverters become very popular in medium voltage applications owing to their inherent capability of reconciling stepped voltage waveform with reduced harmonic distortion…
Abstract
Purpose
Multilevel inverters become very popular in medium voltage applications owing to their inherent capability of reconciling stepped voltage waveform with reduced harmonic distortion and electromagnetic interference. They have several disadvantages like more number of switching devices required and devices with high voltage blocking and need additional dc sources count to engender particular voltage. So this paper aims to propose a novel tri-source symmetric cascaded multilevel inverter topology with reduced number of switching components and dc sources.
Design/methodology/approach
A novel multilevel inverter has been suggested in this study, offering minimal switch count in the conduction channel for the desired voltage level under symmetric and asymmetric configurations. This novel topology is optimized to prompt enormous output voltage levels by employing constant power switches count and/or dc sources of voltage. The topology claims its advantages in generating higher voltage levels with lesser number of voltage sources, gate drivers and dc voltage sources.
Findings
The consummation of the proposed arrangement is verified in Matlab/Simulink R2015b, and an experimental prototype for 7-level, 13-level, 21-level, 29-level, 25-level and 49-level operation modes is constructed to validate the simulation results.
Originality/value
The proposed topology operated with six new algorithms for asymmetrical configuration to propel increased number of voltage levels with reduced power components.
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