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1 – 4 of 4Supen Kumar Sah and Anup Ghosh
The purpose of this study is to investigate the bending analysis of metal (Ti-6Al-4V)-ceramic (ZrO2) functionally graded material (FGM) sandwich plate with material property…
Abstract
Purpose
The purpose of this study is to investigate the bending analysis of metal (Ti-6Al-4V)-ceramic (ZrO2) functionally graded material (FGM) sandwich plate with material property gradation along length and thickness direction under thermo-mechanical loading using inverse trigonometric shear deformation theory (ITSDT). FGM sandwich plate with a ceramic core and continuous variation of material properties has been modelled using Voigt’s micro-mechanical model following the power law distribution method. The impact of bi-directional gradation of material properties over the bending response of FGM plate under thermo-mechanical loading has been investigated in this work.
Design/methodology/approach
In this study, gradation of material properties for FGM plates is considered along length and thickness directions using Voigt’s micromechanical model following the power law distribution method. This type of FGM is called bi-directional FGMs (BDFGM). Mechanical and thermal properties of BDFGM sandwich plates are considered temperature-dependent in the present study. ITSDT is a non-polynomial shear deformation theory which requires a smaller number of field variables for modelling of displacement function in comparison to poly-nominal shear deformation theories which lead to a reduction in the complexity of the problem. In the present study, ITSDT has been utilized to obtain the governing equations for thermo-mechanical bending of simply supported uni-directional FGM (UDFGM) and BDFGM sandwich plates. Analytical solution for bending analysis of rectangular UDFGM and BDFGM sandwich plates has been carried out using Hamilton’s principle.
Findings
The bending response of the BDFGM sandwich plate under thermo-mechanical loading has been analysed and discussed. The present study shows that centre deflection, normal stress and shear stress are significantly influenced by temperature-dependent material properties, bi-directional gradation exponents along length and thickness directions, geometrical parameters, sandwich plate layer thickness, etc. The present investigation also reveals that bi-directional FGM sandwich plates can be designed to obtain thermo-mechanical bending response with an appropriate selection of gradation exponents along length and thickness direction. Non-dimensional centre deflection of BDFGM sandwich plates decreases with increasing gradation exponents in length and thickness directions. However, the non-dimensional centre deflection of BDFGM sandwich plates increases with increasing temperature differences.
Originality/value
For the first time, the FGM sandwich plate with the bi-directional gradation of material properties has been considered to investigate the bending response under thermo-mechanical loading. In the literature, various polynomial shear deformation theories like first-order shear deformation theory (FSDT), third-order shear deformation theory (TSDT) and higher-order shear deformation theory (HSDT) have been utilized to obtain the governing equation for bending response under thermo-mechanical loading; however, non-polynomial shear deformation theory like ITSDT has been used for the first time to obtain the governing equation to investigate the bending response of BDFGM. The impact of bi-directional gradation and temperature-dependent material properties over centre deflection, normal stress and shear stress has been analysed and discussed.
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Gargi Sanati and Anup Kumar Bhandari
In the backdrop of an increase in market-based banking activities, this paper aims to study operational efficiency of Indian banking sector during 2009–2010 through 2017–2018…
Abstract
Purpose
In the backdrop of an increase in market-based banking activities, this paper aims to study operational efficiency of Indian banking sector during 2009–2010 through 2017–2018 considering Capital Gain and Gain from Forex Market (as desirable outputs) and Slippage (as undesirable byproducts) simultaneously, along with Advances – a desirable output considered in the traditional banking performance assessment literature. This enables to have an assessment of performance (as captured by the measured efficiency scores) of Indian Banks following an alternative viewpoint about the banking activities. The authors also explain such efficiency scores in terms of bank-specific factors, banking industry competition scenario and interest rate channel.
Design/methodology/approach
Using data envelopment analysis (DEA) method, the authors estimate six alternatives but interlinked operational efficiency scores (TES) of the Indian domestic commercial banks. In the second stage, they explain such TES in terms of bank-specific factors, banking industry competition scenario and interest rate channel.
Findings
The authors observe that the private sector banks as a group outperform those under public ownership. Moreover, although the private sector banks could maintain somewhat consistency in their operational efficiency performance over the sample period, public sector banks clearly show a declining tendency. The second stage econometric estimation results show that the priority sector lending has a negative effect on efficiency. Interestingly, the authors get varying results for the relationship between maturity and efficiency score depending on banks’ strategies on stressed assets management. Furthermore, the analyses result that banks are not so efficient in managing relatively larger-volume loans. It is also observed that banks’ efficiency positively depends on the Credit-to-Deposit (CD) ratio. It is found that the overall operational efficiency of the banks to manage their credit risk portfolio improves with a reduction in the lending rate (LR). However, the interaction of lending activities and capital market shows that with the increase in LR, corporate borrowers may switch to capital market to explore for desired funds, which may induce the banking sector to investment in capital markets and create a positive market sentiment.
Originality/value
Literature, although scanty, is there dealing stressed assets of a bank as some undesirable byproducts of its operational and business activities. However, such literature mostly done within the traditional framework of banking business activities and modern market-based business activities are almost absent in the literature. The authors have done it in the present study.
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Anup Kumar Saha and Imran Khan
In the swiftly evolving business landscape, environmental, social and governance (ESG) considerations have gained exceptional prominence, as stakeholders increasingly emphasize…
Abstract
Purpose
In the swiftly evolving business landscape, environmental, social and governance (ESG) considerations have gained exceptional prominence, as stakeholders increasingly emphasize accountability and sustainability. This study aims to meticulously probe the intricate interplay between ESG factors, financial performance and the distinct corporate governance landscape that characterizes the Nordic region's crucible of proactive societal and environmental commitment.
Design/methodology/approach
The authors begin with a data set of 899 Nordic firms across Sweden, Norway, Denmark, Finland and Iceland. Using the Thomson Reuters database, they refine this data set by excluding non-regional headquarters and entities without ESG scores or year-long financial data. This resulted in a focused data set of 1,360 firm-years spanning a decade, forming the foundation for investigating the link between ESG factors and financial performance in Nordic firms.
Findings
Drawing upon empirical data, the authors systematically dissect the correlation between specified financial ratios and ESG scores on the bedrock of sustainability evaluation. The findings underscore a partially significant, yet robust relationship between ESG endeavors and financial performance metrics. Furthermore, the intricate interplay of corporate governance dimensions’ reveals intriguing correlations with financial indicators among the surveyed Nordic enterprises. However, the findings also reveal an intricate weave that underscores the ESG and financial performance nexus.
Research limitations/implications
This study addresses stakeholders’ theory and unique positions and contributes to the current discussion on sustainability reporting literature by providing empirical evidence of ESG influences on firm profitability through board characteristics in the specific context of the Nordic region. The sample for this study encompasses firms listed in Nordic countries; thus, the results may not be generalizable to unlisted firms and other countries or regions.
Practical implications
This study suggests that Nordic firms are advanced in reporting ESG in response to diverse stakeholder demands as part of their regular activities. This study provides valuable insights for diverse stakeholders including researchers and regulatory bodies.
Social implications
This study provides an understanding of stakeholders about the association of ESG and sustainability practices with firm profitability, which might lead to making the world a better place.
Originality/value
While illuminating the multifaceted ESG-financial performance nexus, this study reveals its intricate nature. This complexity accentuates the compelling need for further exploration to decode the exact outcomes and myriad factors contributing to the array of correlations observed. Through this comprehensive inquiry, this research advances the understanding and underscores the pivotal role of a focused investigation. This study seeks to harmonize ESG practices and financial performance seamlessly within the Nordic business realm.
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P. Ravi Kiran, Akriti Chaubey, Rajesh Kumar Shastri and Madhura Bedarkar
This study assesses the SDG-related well-being of indigenous communities in India using bibliometric analysis and the ADO-TCM framework. It provides insights into their alignment…
Abstract
Purpose
This study assesses the SDG-related well-being of indigenous communities in India using bibliometric analysis and the ADO-TCM framework. It provides insights into their alignment with sustainable development objectives.
Design/methodology/approach
This study analysed 74 high-impact journals using bibliometric analysis to evaluate the well-being of India’s indigenous peoples about the SDGs.
Findings
This study analyses the well-being of tribal communities in India using existing scholarly articles and the ADO-TCM framework. It emphasises the importance of implementing Sustainable Development Goals (SDGs) to promote the well-being of indigenous populations.
Originality/value
This study uses bibliometric analysis and the ADO-TCM framework to investigate factors impacting tribal community welfare. It proposes theoretical frameworks, contextual considerations and research methodologies to achieve objectives.
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