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Article
Publication date: 20 October 2023

Ajay Kumar Jaiswal and Pallab Sinha Mahapatra

Maintaining the turbine blade’s temperature within the safety limit is challenging in high-pressure turbines. This paper aims to numerically present the conjugate heat transfer…

Abstract

Purpose

Maintaining the turbine blade’s temperature within the safety limit is challenging in high-pressure turbines. This paper aims to numerically present the conjugate heat transfer analysis of a novel approach to mini-channel embedded film-cooled flat plate.

Design/methodology/approach

Numerical simulations were performed at a steady state using SST kω turbulence model. Impingement and film cooling are classical approaches generally adopted for turbine blade analysis. The existing film cooling techniques were compared with the proposed design, where a mini-channel was constructed inside the solid plate. The impact of the blowing ratio (M), Biot number (Bi) and temperature ratio (TR) on overall cooling performance was also studied.

Findings

Overall cooling effectiveness was always shown to be higher for mini-channel embedded film-cooled plates. The effectiveness increases with increasing the blowing ratio from M = 0.3 to 0.7, then decreases with increasing blowing ratio (M = 1 and 1.4) due to lift-off conditions. The mini-channel embedded plate resulted in an approximately 21% increase in area-weighted average overall effectiveness at a blowing ratio of 0.7 and Bi = 1.605. The lower uniform temperature was also found for all blowing ratios at a low Biot number, where conduction heat transfer significantly impacts total cooling effectiveness.

Originality/value

To the best of the authors’ knowledge, this study presents a novel approach to improve the cooling performances of a film-cooled flat plate with better cooling uniformity by using embedded mini-channels. Despite the widespread application of microchannels and mini-channels in thermal and fluid flow analysis, the application of mini-channels for blade cooling is not explored in detail.

Details

International Journal of Numerical Methods for Heat & Fluid Flow, vol. 34 no. 1
Type: Research Article
ISSN: 0961-5539

Keywords

Article
Publication date: 30 December 2022

Mahipal Singh, Rajeev Rathi, Ajay Jaiswal, Shah Dhyey Manishbhai, Shaptarshi Sen Gupta and Abhishek Dewangan

The present study aims to explore the barriers to Lean Six Sigma (LSS) implementation in the healthcare sector and develop the ranking of finalized barriers using the…

Abstract

Purpose

The present study aims to explore the barriers to Lean Six Sigma (LSS) implementation in the healthcare sector and develop the ranking of finalized barriers using the Decision-Making Trial and Evaluation Laboratory (DEMATEL) approach under a fuzzy environment.

Design/methodology/approach

The LSS barriers are identified through the literature review and validated by the expert's opinion and statistical analysis. A total of 124 experts were identified through the purposive sampling method for conducting this study. A questionnaire survey method is used to collect the data related to identified LSS barriers in the healthcare sector. The screened barriers are ranked through the Fuzzy DEMATEL approach.

Findings

In this study, a total of 21 barriers were identified with the help of a systematic literature review and screened 13 significant barriers by the expert opinions of healthcare personnel. The result reveals that “Lack of top management commitment and support, lack of awareness about LSS”, “resistance to culture change and inadequate resources emerges as the most critical barriers”. The prioritization of barriers facilitates the managers to make effective policies and guidelines for LSS implementation in healthcare organizations.

Practical implications

To avoid LSS implementation failure, the practitioners and researchers need to focus on LSS barriers as per suggested ranking more conventionally and make plans and adoption policies accordingly.

Originality/value

This study is unique in terms of investigation and empirical analysis of LSS implementation barriers in the healthcare sector in the Indian context. The outcomes of the present study will help the managers of healthcare organizations to make the strategies and policies for LSS implementation as per the recommended LSS barriers.

Details

The TQM Journal, vol. 35 no. 8
Type: Research Article
ISSN: 1754-2731

Keywords

Article
Publication date: 10 May 2021

Pallavi Pradeep Khobragade and Ajay Vikram Ahirwar

The purpose of this study is to monitor suspended particulate matter (SPM), PM2.5 and source apportionment study for the identification of possible sources during the year…

Abstract

Purpose

The purpose of this study is to monitor suspended particulate matter (SPM), PM2.5 and source apportionment study for the identification of possible sources during the year 2018–2019 at Raipur, India.

Design/methodology/approach

Source apportionment study was performed using a multivariate receptor model, positive matrix factorization (PMFv5.0) with a view to identify the various possible sources of particulate matter in the area. Back-trajectory analysis was also performed using NOAA-HYSPLIT model to understand the origin and trans-boundary movement of air mass over the sampling location.

Findings

Daily average SPM and PM2.5 aerosols mass concentration was found to be 377.19 ± 157.24 µg/m³ and 126.39 ± 37.77 µg/m³ respectively. SPM and PM2.5 mass concentrations showed distinct seasonal cycle; SPM – (Winter ; 377.19 ±157.25 µg/m?) > (Summer; 283.57 ±93.18 µg/m?) > (Monsoon; 33.20 ±16.32 µg/m?) and PM2.5 – (Winter; 126.39±37.77 µg/m³) > (Summer; 75.92±12.28 µg/m³). Source apportionment model (PMF) have been applied and identified five major sources contributing the pollution; steel production and industry (68%), vehicular and re-suspended road dust (10.1%), heavy oil combustion (10.1%), tire wear and brake wear/abrasion (8%) and crustal/Earth crust (3.7%). Industrial activities have been identified as major contributing factor for air quality degradation in the region.

Practical implications

Chemical characterization of aerosols and identification of possible sources will be helpful in abatement of pollution and framing mitigating strategies. It will also help in standardization of global climate model.

Originality/value

The findings provide valuable results to be considered for controlling air pollution in the region.

Details

World Journal of Engineering, vol. 19 no. 4
Type: Research Article
ISSN: 1708-5284

Keywords

Article
Publication date: 29 June 2021

Ajay Kumar Koli

The purpose of this study is to identify the key criteria from the perspective of handmade, authenticity and sustainability for purchasing craft items by Indian consumers.

Abstract

Purpose

The purpose of this study is to identify the key criteria from the perspective of handmade, authenticity and sustainability for purchasing craft items by Indian consumers.

Design/methodology/approach

An exploratory qualitative research was conducted on the buying behaviour of Assamese muga mekhela chador (MMC). Data were collected using purposive sampling and video-recorded focus group discussions (FGDs). Output transcripts were content-analysed using the R package RQDI.

Findings

Indian consumers largely define crafts as handmade. Results indicate the crucial role of craft design and price. Craft authenticity, craft knowledge and social identity evolved as the key criteria for buying crafts. State intervention in craft certification is demanded. Indian craft consumers lack awareness about sustainable consumption.

Originality/value

India is home to millions of craftspeople and craft buyers. Most of the earlier craft studies focused on the problems of craft production in India. This study contributes to the consumption literature, from the standpoints of authenticity and sustainability, which are often limited to Western consumers. Understanding its own domestic craft market will help Indian policymakers and organisations to reduce export dependency and to tap potential local craft demand.

Details

Journal of Cultural Heritage Management and Sustainable Development, vol. 13 no. 1
Type: Research Article
ISSN: 2044-1266

Keywords

Article
Publication date: 28 November 2018

Kishore Kumar and Ajai Prakash

Sustainable development has now been recognised as the pivot around which development activities should revolve. Banking is an important component in the same and adoption of…

3083

Abstract

Purpose

Sustainable development has now been recognised as the pivot around which development activities should revolve. Banking is an important component in the same and adoption of sustainable banking practices by various banking institutions is a strong driver to achieve sustainable development. The purpose of this paper is to study the level of adoption of sustainable banking tools and the extent to which banking institutions practice the same in India. In addition, the banking institutions have been ranked and categorised on basis of their sustainable banking performance.

Design/methodology/approach

The proposed framework focuses on the environmental and social conduct of the banks, who address the issues of sustainability in Indian banking sector. As there is a difference in the economic standards of developed and developing countries, the review of literature helps to figure out the gap in specific frameworks for assessing sustainable banking practices in developing countries. Previous researchers have made an attempt to develop a general framework for assessing the sustainable banking efforts of the banking sector. These studies fall short of indicators on the social dimension of sustainability specifically in the context of less developed countries like India, the social dimensions are is equally a major thrust area along with environmental indicators. Content analysis technique has been used to evaluate sustainable banking performance of the banks and Mann–Whitney U test used to determine the differences in sustainable banking performance of the banks in India.

Findings

In Indian banking sector, the adoption of the international sustainability code of conduct is still in its nascent stage. The research indicates that sustainability issues which are of the highest priority for the banks are directly related to their business operations such as financial inclusion, financial literacy and energy efficiency, and banks are more focussed on addressing social dimension of sustainability in banking rather than important dimensions of sustainable banking, namely, environmental management, development of green products and services and sustainability reporting.

Practical implications

The application of the proposed framework reflects the status quo of sustainable banking in India. This study is useful for the banks and all the stakeholders in understanding more about the shortcomings in integrating sustainability issues in banking. Further, the present study also redresses the extant research dearth in the field of sustainable banking in the Indian context.

Originality/value

This is one of the first studies evaluating the sustainable banking performance of the Indian banking sector.

Open Access
Article
Publication date: 21 November 2023

Niyaz Panakaje, Habeeb Ur Rahiman, S.M. Riha Parvin, Abbokar Siddiq and Mustafa Raza Rabbani

This research aims to explore the significance of cooperative efforts in promoting financial participation to enhance the socio-economic empowerment of the rural Muslims.

Abstract

Purpose

This research aims to explore the significance of cooperative efforts in promoting financial participation to enhance the socio-economic empowerment of the rural Muslims.

Design/methodology/approach

The primary study with a structured questionnaire has been conducted taking a sample of 398 rural Muslim respondents from various rural regions of south India through proportionate stratified sampling techniques. Regression analysis, paired sample t-test and structural equation modelling (SEM) through statistical package for social sciences (SPSS) 26 & SPSS analysis of moment structures (AMOS) 23 software have been implemented to test the relationship.

Findings

The research outcome demonstrated a remarkable difference in the rural Muslim’s socio-economic conditions before and after availing the loans from cooperatives. Consequently, an extension of cooperative efforts widens the scope of financial participation which again has positively enhanced rural Muslim’s socio-economic empowerment.

Practical implications

This study will help various policymakers, academicians and communities to take necessary action for the upliftment of a particular community. The research further adds on to the existing research on the need and importance of cooperative efforts as an alternative finance for marginalised community in developing and emerging countries.

Originality/value

The result of this study is only confined to south India, posing a limitation for the study. Apart from the geographical restriction, the study solemnly covers the rural Muslim community extracting other sections of the society. Hence, for more generalisable pictures of the current results, further research is recommended from other stakeholders’ perspectives.

Details

Arab Gulf Journal of Scientific Research, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 1985-9899

Keywords

Article
Publication date: 18 April 2017

Namrata Gupta

Since liberalization in the 1990s, India has witnessed a growth in the number of educated middle-class women in professions. However, there are few women in leadership positions…

2998

Abstract

Purpose

Since liberalization in the 1990s, India has witnessed a growth in the number of educated middle-class women in professions. However, there are few women in leadership positions and decision-making bodies. While the earlier notion of the ideal woman as homemaker has been replaced by one which idealizes women of substance, a woman’s role in the family continues to be pivotal and is even viewed as central in defining Indian culture. The purpose of this paper is to analyze how and to what extent gender inequalities are reproduced in the organizations employing educated professionals.

Design/methodology/approach

Based on the perspective that gender is socially constructed, this paper analyzes gender inequality in Indian organizations through semi-structured interviews of men and women scientists in two private pharmaceutical laboratories.

Findings

The findings show reproduction of a gendered normative order through two types of norms and practices: one, norms and practices that favor men and second, socio-cultural norms that devalue women in public spaces which help to maintain masculinity in the workplace. Although these practices might be found elsewhere in the world, the manner in which they are enacted reflects national cultural norms.

Originality/value

The paper highlights how various norms and practices enacted in the specific Indian socio-cultural context construct and maintain masculinity at workplace depriving opportunities to professional women which affect their rise to leadership positions.

Details

Equality, Diversity and Inclusion: An International Journal, vol. 36 no. 3
Type: Research Article
ISSN: 2040-7149

Keywords

Article
Publication date: 15 January 2020

Sameer Sharma

The Prevention of Money Laundering Act (the PMLA/the Act) was enacted in India in 2002. Since then, Indian courts have had to deal with two interconnected issues owing to the…

Abstract

Purpose

The Prevention of Money Laundering Act (the PMLA/the Act) was enacted in India in 2002. Since then, Indian courts have had to deal with two interconnected issues owing to the nature of the offence of money laundering (ML) as conceived in the Act itself. The first issue relates to the independence of the offence of ML from the conviction of the underlying offence; and the second is the manner in which the PMLA operates – whether it does so retrospectively or prospectively. The purpose of this paper is to delve into these questions as there is no definitive and binding answer provided for by the courts. It aims to provide normative answers to the above-mentioned questions to enable better functioning of the Act.

Design/methodology/approach

This research paper examines international conventions relating to ML, reports by inter-governmental bodies, the statutory language of the Act and judgements rendered by courts.

Findings

The paper goes on to conclude that for fulfilling the purpose of the Act, the offence of ML must be considered separate from the conviction of the predicate offence. As a result, it also concludes that the Act must apply in instances where the predicate offence was committed prior to its inclusion in the Act’s Schedule if the act of ML occurs after such inclusion.

Originality/value

There does not exist any scholarly literature addressing the judiciary’s interpretation of the Act regarding the said two issues in a systematic fashion. Added to this is the fact that there exist uncertainty and ambiguity because of conflicting judgements. By analyzing international instruments, the phraseology of the Act and contradictory case-law, this paper attempts to find definitive solutions to the said two questions in a purposive manner.

Details

Journal of Money Laundering Control, vol. 23 no. 1
Type: Research Article
ISSN: 1368-5201

Keywords

Article
Publication date: 10 July 2020

Vinti Singh, Jyotsana Singh, Radha Kushwaha, Monika Singh, Sandeep Kumar and Awadhesh Kumar Rai

Flowers and fruits of Madhuca longifolia (Koenig) (mahua) tree are edible and used as traditional Indian medicines. The physicochemical properties of different parts of mahua are…

Abstract

Purpose

Flowers and fruits of Madhuca longifolia (Koenig) (mahua) tree are edible and used as traditional Indian medicines. The physicochemical properties of different parts of mahua are investigated. This study aims to estimate the different mineral contents, polyphenols compounds and antioxidant activities by 2,2-diphenyl-1-picrylhydrazyl inhibition, reducing power, free radical scavenging activity using 2,2'-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid) and ferric reducing antioxidant power assays of mahua flower, ripe and unripe fruit.

Design/methodology/approach

Flavonoids were identified and quantified in yellow flowers and fruits of M. longifolia tree by high-performance liquid chromatography with diode array detector. Low molecular weight carbohydrates were determined by the ICBio scan, a specific method for determining of carbohydrates. Mineral content is determined by laser-induced breakdown spectroscopy (LIBS) and atomic absorption spectroscopy. Physicochemical, nutritional and mineral properties of mahua flower, ripe and unripe fruit were investigated by the statistical approach of principal component analysis (PCA).

Findings

Ascorbic acid, gallic acid (GA), quercetin and myrcetin were the phenolic compounds identified and quantified in mahua flower and fruit extracts. Sugar profiling of mahua flowers and fruits confirmed the presence of inositol, sorbitol, mannitol, dextrose, fructose, sucrose, raffinose and maltose. The mineral content of Na, K, Mg and Ca was present in quite a good amount in all samples. Total phenolic content (TPC) was significantly high in mahua flower (25.3 ± 1.0 mg GA equivalent/g FW) followed by mahua unripe (15.8 ± 1.0 mg GA equivalent/g FW) and ripe fruit (14.3 ± 1.0 mg GA equivalent/g FW) at p = 5%. In contrast, total flavonoid contents (TFCs) were highest in ripe fruit, then mahua flower and unripe fruit. Positive correlations were predicted by PCA for mahua flower with TPC, antioxidant activity assays and minerals except for Na; ripe fruit with TFC and Na; and unripe fruit with maltose and sorbitol.

Originality/value

This study demonstrates the application of LIBS for the determination of elements present in the mahua flowers and fruits and reveals that mahua can be a good source of nutrients. Sugar profiling of mahua flower showed that it is a rich source of reducing and non-reducing sugar, proving that mahua flower juice can be used as a natural sweetener in the development of different food products, namely, biscuits, cookies, cake, jam, jelly, juice and squash.

Details

Nutrition & Food Science , vol. 51 no. 2
Type: Research Article
ISSN: 0034-6659

Keywords

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