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Article
Publication date: 26 January 2022

B. Raja Rajeshwari and M.V.N. Sivakumar

Fracture properties of concrete are mainly influenced by specimen shape, size and type of testing method. The study aims to identify the characteristic divergence in…

Abstract

Purpose

Fracture properties of concrete are mainly influenced by specimen shape, size and type of testing method. The study aims to identify the characteristic divergence in fracture – evaluating testing methods, i.e. three-point bend test and wedge splitting test for fibrous self-compacting concrete.

Design/methodology/approach

A total of nine mixes with three different coarse aggregate sizes (20, 16 and 12.5mm) and three coarse to fine aggregate quantities (40–60, 45–55 and 50–50) were considered to examine the influence of materials on fracture parameters of fibrous self-compacting concrete. For three-point bend test, size effect method was considered to analyze the fracture properties.

Findings

The experimental investigation revealed that fracture energy calculated from wedge splitting test was reasonably on higher side for maximum coarse aggregate-based specimens for all coarse to fine aggregate quantities, while for the size effect method, fracture energy value was maximum for least coarse aggregate sized specimens.

Originality/value

The fracture properties of fibrous self-compacting concrete obtained from wedge splitting test method was higher than the size effect method. This is due to the consideration of only peak load for determining the fracture properties in size effect method analysis.

Details

International Journal of Structural Integrity, vol. 13 no. 2
Type: Research Article
ISSN: 1757-9864

Keywords

Article
Publication date: 2 January 2020

Raja Rajeshwari B. and Sivakumar M.V.N.

Fracture properties depend on the type of material, method of testing and type of specimen. The purpose of this paper is to evaluate fracture properties by adopting a…

Abstract

Purpose

Fracture properties depend on the type of material, method of testing and type of specimen. The purpose of this paper is to evaluate fracture properties by adopting a stable test method, i.e., wedge split test.

Design/methodology/approach

Coarse aggregate of three different sizes (20 mm, 16 mm and 12.5 mm), three ratios of coarse aggregate, fine aggregate (CA:FA) (50:50, 45:55, 40:60), presence of steel fibers, and specimens without and with guide notch were chosen as parameters of the study.

Findings

Load-crack mouth opening displacement curves indicate that for both fibrous and non-fibrous mixes, higher volume of aggregate and higher size of coarse aggregate have high fracture energy.

Originality/value

For all volumes of coarse aggregate, it was noticed that specimens with 12.5 mm aggregate size achieved highest peak load and abrupt drop post-peak. The decrease in coarseness of internal structure of concrete (λ) resulted in the increase of fracture energy.

Details

International Journal of Structural Integrity, vol. 11 no. 6
Type: Research Article
ISSN: 1757-9864

Keywords

Article
Publication date: 1 January 2012

N. Sivakumar and Sundara R. Krishnaswami

The 2008‐2009 global crisis was not only a financial calamity, but also a major ethical disaster. The purpose of this paper is to discuss the dharmic transgressions that…

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Abstract

Purpose

The 2008‐2009 global crisis was not only a financial calamity, but also a major ethical disaster. The purpose of this paper is to discuss the dharmic transgressions that took place in connection with the crisis using the philosophy of Bhagavan Sri Sathya Sai Baba, a world spiritual leader and teacher.

Design/methodology/approach

The paper initially gives a brief overview of the unfolding crisis, its devastation of the world economy and a review of related literature. The paper then outlines the concept of dharma which, as expounded by Bhagavan Baba, must ultimately result in social welfare. The paper goes on to analyze the factors that created, triggered and fuelled the crisis from this perspective. The paper also outlines solutions based on Baba's philosophy to prevent such a crisis from occurring in the future.

Findings

The fundamental finding of the paper is that the global financial crisis was triggered and fuelled by factors which were transgressions of dharma. Thus, the solution to prevent such a crisis is adherence to dharma.

Practical implications

The paper gives several recommendations to investors, institutions and regulators to act in a way to prevent such crises in the future.

Social implications

If the principles of dharma are adhered to, they will not only prevent occurrence of financial crises, but will also make the financial system work for the welfare of the entire society.

Originality/value

The paper shows the relevance of the teachings of Bhagavan Baba which are quintessentially the philosophy of “Sanathana Dharma” (eternal dharma) in solving current economic problems and contributing to social welfare.

Details

International Journal of Social Economics, vol. 39 no. 1/2
Type: Research Article
ISSN: 0306-8293

Keywords

Article
Publication date: 12 July 2022

M.S. Sai Vinod, Pranav Umesh and N. Sivakumar

Prior research studies have discussed the role of corporate social responsibility (CSR) during crisis situations in increasing the resilience and sustainability of the…

Abstract

Purpose

Prior research studies have discussed the role of corporate social responsibility (CSR) during crisis situations in increasing the resilience and sustainability of the companies. There are two basic models of crisis management – reactive and proactive. When a crisis occurs, suddenly firms tend to act reactively and progressively take proactive steps to manage the crisis. CSR can also be reactive and proactive during crisis situations. Against this backdrop, this paper aims to explore whether CSR during the COVID-19 pandemic moved from a reactive to a proactive stance, with specific focus on CSR legislation, corporate CSR response and corporate thinking about CSR.

Design/methodology/approach

This paper adopts a mixed methods approach, using both qualitative and quantitative research designs. This study draws upon both primary and secondary data.

Findings

The results highlighted the change in the CSR approach from being reactive to being proactive as the pandemic progressed. This was observed through the increase in frequency of CSR legislation, and the shift in the intent of CSR legislation from “prompting to donate” to “prompting to volunteer.” Similarly, the shift in reactive to proactive CSR corporate response was observed through the increased spending on CSR and improved COVID-related CSR reporting.

Practical implications

This study recommends companies to manage crises by becoming more proactive. CSR activities need to be closely aligned with national developmental objectives, and collaborate with various stakeholders to achieve the intended outcomes of the activities.

Originality/value

To the best of the authors’ knowledge, this research paper is one of the few to study the impact of COVID-19 pandemic on CSR in India at a time when India went through three waves of the pandemic. This study corroborates with other studies in terms of managing crisis.

Details

International Journal of Organizational Analysis, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 1934-8835

Keywords

Article
Publication date: 16 October 2009

N. Sivakumar

The purpose of this paper is to develop a typology of organization behavior based on the guidelines from Manusmriti, an ancient Indian law text. The paper also purports to

2953

Abstract

Purpose

The purpose of this paper is to develop a typology of organization behavior based on the guidelines from Manusmriti, an ancient Indian law text. The paper also purports to provide guidelines from the text for values‐based corporate governance.

Design/methodology/approach

The paper first develops an organizational behavior typology based on Manusmriti. The paper then provides guidelines for various aspects of values‐based corporate governance.

Findings

The paper finds that the guidelines from Manusmriti are relevant in providing a holistic approach to corporate governance which promotes ethical and social idealism.

Practical implications

The paper has practical implications to practitioners of corporate governance in terms of developing structures which promote ethical and socially responsible behavior.

Originality/value

The originality of the paper is in deriving guidelines for values‐based corporate governance from Manusmriti.

Details

Corporate Governance: The international journal of business in society, vol. 9 no. 5
Type: Research Article
ISSN: 1472-0701

Keywords

Article
Publication date: 30 August 2011

N. Sivakumar

The paper aims to discuss the management of financial market scandals using two different approaches – regulatory and values‐based.

1464

Abstract

Purpose

The paper aims to discuss the management of financial market scandals using two different approaches – regulatory and values‐based.

Design/methodology/approach

The paper discusses the motivations behind financial scandals to occur and then explains in detail both the approaches. The paper first presents the elements of the regulatory approach. Using the teachings of Bhagavan Sri Sathya Sai Baba, the values‐based approach are delineated. The paper also compares the two approaches and identifies their respective utilities.

Findings

While both the regulatory and values based approaches have their own utilities; stressing the values‐based approach helps with preventing financial scandals on a sustainable basis.

Practical implications

The practical implication is that it is necessary to stress the evocation of human values among investors and capital market intermediaries so that scandals can be avoided.

Social implications

The social implication of the paper is that values evocation is very important to tackle the behavioural motivations behind financial scandals. Unless values are evoked, the root causes of financial scandals will not be removed. In such cases, regulation will have only a limited effect.

Originality/value

The paper uses the philosophy and teachings of Bhagavan Sri Sathya Sai Baba to develop value guidelines to prevent financial scandals.

Article
Publication date: 2 July 2020

Charanjit Singh, Davinder Singh and J.S. Khamba

Green Lean concepts offer methods for managing manufacturing organizations with the goal of improving organizational performance. Green Lean practices are good options to…

Abstract

Purpose

Green Lean concepts offer methods for managing manufacturing organizations with the goal of improving organizational performance. Green Lean practices are good options to increase the environmental and operational performance of manufacturing industries. However, there are some barriers to implement Green Lean in manufacturing industries. This paper aims to identify these barriers by reviewing the literature and analyze inter-relationships amongst selected barriers.

Design/methodology/approach

This paper deals with the identification of barriers to the adoption of Green Lean practices in manufacturing industries. Using the DEMATEL approach and using the insights of experts, a cause and effect relationship diagram was generated through which the effect of barriers was analyzed.

Findings

Twelve barriers were categorized in terms of cause and effect, and the interrelationships of barriers were also analyzed. Threshold value is calculated as 0.134 and the values lower than a were eliminated to obtain the digraph. “Resistance to change,” “lack of top management commitment” and “lack of training to employees” are the most prominent barriers on the basis of their prominent score.

Research limitations/implications

Analysis in the research is highly dependent on expert judgments and opinions may be biased. However, the initial matrix obtained from the experts is hindered by the ambiguity about some relationships. But this can be improved by using fuzzy and grey set theories. The barriers used for the analysis are not from a specific type of manufacturing industry.

Practical implications

The findings will help the manufacturing organizations to simplify the most important barriers, the least significant barriers and the relationships between these barriers. This Berlin knowledge will enable administrators to increase awareness of the barriers in Green Lean implementation. “The top management commitment” and “government support” are most important for the removal of barriers to Green Lean strategies.

Originality/value

Very few scholars have used the DEMATEL approach to examine the sequence of the barriers to Green Lean implementation. The present study attempts to incorporate the DEMATEL model to assess the sequence of barriers to the implementation of Green Lean. This study investigates the degree of influence of barriers on each other and categorizes the barriers into cause and effect groups. This study is also intended to pave the way for future research in the path of the elimination of barriers to Green Lean strategies.

Details

Journal of Manufacturing Technology Management, vol. 32 no. 1
Type: Research Article
ISSN: 1741-038X

Keywords

Article
Publication date: 3 April 2017

Neha Rathi, Lynn Riddell and Anthony Worsley

School-based nutrition education programmes have the potential to reinforce healthy dietary behaviours in adolescents. The purpose of this paper is to understand the views…

Abstract

Purpose

School-based nutrition education programmes have the potential to reinforce healthy dietary behaviours in adolescents. The purpose of this paper is to understand the views of secondary school students in Kolkata, India, regarding the food and nutrition curriculum, food skill acquisition at school and home and barriers to learning food skills.

Design/methodology/approach

The sample of 1,026 year nine students was drawn from nine private, English-speaking secondary schools in Kolkata, India to participate in a cross-sectional, self-reported paper-based survey. Data analyses including descriptive statistics and χ2 analyses were performed.

Findings

The majority of the respondents (65.3 per cent) were female. Biology, Home Science and Life skills classes were the main places in which students acquired food and nutrition knowledge. Almost two-thirds of the respondents acknowledged the importance of acquiring food-related knowledge and skills. Approximately half (48.3 per cent) reported that the food and nutrition curriculum involved excessive memorisation while around the same proportion described the curriculum as interesting (47 per cent) and easy to comprehend (50.3 per cent). However, relatively few students said they enjoyed attending food and nutrition classes (38.7 per cent). Only a minority reported receiving food skills training, i.e. cooking skills (23 per cent), meal planning skills and food purchasing skills (12.3 per cent) at school. Despite some parental support received at home, time constraints (50.5 per cent) and lack of interest (26.3 per cent) were cited as prominent barriers to learning food skills.

Practical implications

These data underscore the need for a skills-focussed food and nutrition curriculum to improve Indian adolescents’ food-related skills, nutritional knowledge and dietary behaviours.

Originality/value

This is the first cross-sectional survey to investigate the delivery of nutrition education and food skills in the Indian school context.

Details

Health Education, vol. 117 no. 3
Type: Research Article
ISSN: 0965-4283

Keywords

Article
Publication date: 1 May 2005

Leping Huang, Hongyuan Chen, T.V.L.N. Sivakumar, Tsuyoshi Kashima and Kaoru Sezaki

To utilize Bluetooth as a layer 2 multi‐hop subnet for global IP network, there are two missing protocols in current Bluetooth stack: network formation and routing. In…

Abstract

To utilize Bluetooth as a layer 2 multi‐hop subnet for global IP network, there are two missing protocols in current Bluetooth stack: network formation and routing. In this paper, we propose our network formation and routing protocols optimized for such Bluetooth subnset usage scenarios to fill this gap. In this paper, we first present some observations on performance degradations of Bluetooth PAN due to network topologies and topology change when radio independant protocols are implemented. And then we analyze the reason of performance degradation. Based on our analysis, we first propose a flexible scatternet formation algorithm under conference scenario for multi‐hop communication. By using proposed method, scatternet can be formed flexibly with star, mesh, or linked line based on several parameters like number of maximum piconets that a gateway Bluetooth device can participate, and whether loops are needed in the resulting scatternet to achieve better network performance. To utilize topology information in multi‐hop communication, we propose a Cross‐layer Optimized Routing for Bluetooth (CORB) CORB is a QoS‐extended AODV routing protocol with mainly two optimizations between networking layer and underlying Bluetooth MAC layer. The first optimization is to use a new load metric. (LM) in QoS routing protocol instead of number of hops in conventional best effort routing. LM is derived from estimation of nodes’ link bandwidth, which reflects the different roles of nodes in Bluetooth scatternet. This proposal helps routing protocol to bypass heavily loaded nodes, and find route with larger bandwidth. The second optimization is to adjust LM and some MAC layer parameters in response to the unstable network topology caused by movement and change of indoor radio condition. Finally, We present some simulation and experiment results based on implementation, which prove the effectiveness of our protocols.

Details

International Journal of Pervasive Computing and Communications, vol. 1 no. 2
Type: Research Article
ISSN: 1742-7371

Keywords

Article
Publication date: 6 February 2017

Neha Rathi, Lynn Riddell and Anthony Worsley

The current Indian secondary school curriculum has been criticised for its failure to deliver relevant skills-based food and nutrition education for adolescents. The…

Abstract

Purpose

The current Indian secondary school curriculum has been criticised for its failure to deliver relevant skills-based food and nutrition education for adolescents. The purpose of this paper is to understand the views of adolescents, their parents, teachers and school principals on the present food and nutrition curriculum and the role of the schools in developing food skills.

Design/methodology/approach

Semi-structured interviews were held with 15 students aged 14-15 years, 15 parents, 12 teachers and ten principals in ten private schools in Kolkata, India. The interview questions were primarily based on the content, merits and demerits of the curriculum. The digitally recorded data were transcribed verbatim and analysed thematically.

Findings

All the 52 interviewees observed that the food and nutrition curriculum created awareness in students about the importance of healthy eating. However, they also described certain weaknesses of the curriculum. These included lack of practical assignments, an out-dated and a limited curriculum, which failed to initiate critical thinking and was contradicted by sales practices in the school food environment. The interviewees prioritised the inclusion of food skills in the curriculum.

Practical implications

The emerging evidence suggests the need for the development of a skills-focussed food and nutrition curriculum to encourage healthy eating behaviours among adolescents.

Originality/value

Most of the work on food and nutrition education has come from developed nations – this is the first study in the Indian context of the secondary school food and nutrition curriculum.

Details

Health Education, vol. 117 no. 2
Type: Research Article
ISSN: 0965-4283

Keywords

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