Search results

1 – 10 of 19
Article
Publication date: 15 February 2021

Tawfeeq Abdullah Alkanhal

This paper aims to disperse the silicon dioxide in water (as the mono nanofluid [MN]) and then, carbon nanotube (CNT)-silica composite in water (as the hybrid nanofluid [HN]).

Abstract

Purpose

This paper aims to disperse the silicon dioxide in water (as the mono nanofluid [MN]) and then, carbon nanotube (CNT)-silica composite in water (as the hybrid nanofluid [HN]).

Design/methodology/approach

Nanofluids have gained lots of attention through the recent years. Due to their usage in the industries and also medical applications, they have high protentional to be studied in different aspects. The most common study for the nanofluids is to understand the heat transfer capacity for each material in each fluid. These material(s) or fluid(s) can be one (mono nanofluid) or more than one (hybrid nanofluid).

Findings

The mixture of two solids is to assess the unique properties of each material and also to decrease the cost of experiments. The heat transfers for both MN and HN were measured at volume fractions up to 1.0%, and temperatures up to 50°C. Also, the heat transfers were compared. By more CNT, thermal conductivity was enhanced about 17.39% (from 12.42% of MN to 29.81% of HN).

Originality/value

X-Ray diffraction and field emission scanning electron microscope (FESEM) were examined for mono solids and the composite. After the experimental study, for MN and HN, four novel correlations calculated.

Details

International Journal of Numerical Methods for Heat & Fluid Flow, vol. 31 no. 8
Type: Research Article
ISSN: 0961-5539

Keywords

Article
Publication date: 7 October 2020

Ritu Tripathi and Abhishek Kumar

To identify the characteristic features of humanistic leadership in the Tata group in India, and to explicate the key facilitating factors.

1931

Abstract

Purpose

To identify the characteristic features of humanistic leadership in the Tata group in India, and to explicate the key facilitating factors.

Design/methodology/approach

Narrative case-study inquiry via semi-structured interviews with top management leaders and middle managers, and secondary sources of information.

Findings

The top leaders of the Tata companies emphasised the following values and leadership experience: (1) Adherence to the founder's philosophy and the basic core values, (2) Leadership with Trust, (3) Community as the key purpose of the enterprise, (4) Senior leaders as mentors and role-models, (5) Abiding by the ethical code of conduct, (6) Employee-focus and (7) Tacit alignment with Indian cultural values. These resonated with the humanistic leadership tenets. Based on the literature the authors also identified that in Tata leadership, there is an amalgamation of personal values (humata, hukhta, hvarshta: good thought, word and deed) and national cultural ethos (dharma, karma and jnana: emphasis on duty-bound action and knowledge). These leadership values are conveyed and institutionalised in the organisation via strategic initiatives such as the Tata Trusts, Tata Business Excellence Model, Tata Code of Conduct. This synergy of personal values, national cultural ethos and organisational strategy makes Tata group realise the humanistic leadership objectives, while achieving business targets.

Research limitations/implications

The thematic analysis of interview data provides a contextualised understanding of how humanistic leadership gets realised at both the individual behavioural level, as well as at the broader organisational strategic level. This provides inputs to building the theory of humanistic leadership.

Practical implications

By unravelling the factors that facilitate the realisation of humanistic leadership in the Tata group, the authors provide an exemplar for other organisations and business leaders to draw insights from.

Social implications

Humanistic leadership, oriented towards upliftment of community and society, and not just profit maximisation, is critical to creating a more sustainable and peaceful world.

Originality/value

This is one of first studies that conceptualises the Tata leadership from the humanistic perspective. The theoretical insights are of basic and applied use.

Details

Cross Cultural & Strategic Management, vol. 27 no. 4
Type: Research Article
ISSN: 2059-5794

Keywords

Article
Publication date: 13 November 2017

Walter Odongo, Manoj Kumar Dora, Adrienn Molnar, Duncan Ongeng and Xavier Gellynck

The purpose of this paper is to examine the role of power on supply chain performance (SCP) in the context of small and medium sized agribusiness enterprises (SMEs). Contrary to…

Abstract

Purpose

The purpose of this paper is to examine the role of power on supply chain performance (SCP) in the context of small and medium sized agribusiness enterprises (SMEs). Contrary to most of previous studies, which collect and analyze data from one side of a relationship dyad using a focal firm approach, a matched triad approach was employed in data collection and analysis.

Design/methodology/approach

Empirical data was collected from 150 agribusiness supply chain members from the maize supply chain in Uganda. Analysis was done using multi-group analysis and structural equations modeling.

Findings

Results highlight the differences in the perception of power use and how it influences SCP. The differences in perception suggest the existence of power asymmetry amongst supply chain members. This work contributes to the ongoing debate concerning the use of triad as a unit of analysis as opposed to a firm or a dyad.

Research limitations/implications

This study only focused on one commodity chain in one country, which can limit the broad application of the findings.

Originality/value

The novelty of this work lies in fact that the authors assess perception of power amongst supply chain members in a triadic context, a perspective that has not been adequately tested in agribusiness supply chain management studies before.

Details

Journal of Agribusiness in Developing and Emerging Economies, vol. 7 no. 3
Type: Research Article
ISSN: 2044-0839

Keywords

Article
Publication date: 5 May 2020

Padma Charan Mishra and Manoj Kumar Mohanty

The purpose of this paper is to explore operation influencing factors of mining. To collect gaps of study and to form a thematic representation of principal influencing factors…

Abstract

Purpose

The purpose of this paper is to explore operation influencing factors of mining. To collect gaps of study and to form a thematic representation of principal influencing factors and their unique influencing factors.

Design/methodology/approach

Articles were collected from different sources from 1974 to 2019 consisting of research articles, technical papers, expert blogs, working papers and conference papers covering various disciplines from psychology, human resource, finance and economics to mining engineering. Mining operation influencing factors were noted down. Four massively deposed mines were visited to observe the sequence of mining process. The field experts were also consulted to identify factors influencing their respected industry. Gaps were observed while comparing with the reviewed articles and opinions of field experts. Finally, senior experts were consulted to identify unique factors from the final list prepared and a framework of seven thematic categories consisting of unique factors was formulated.

Findings

A total of 197 sub-factors were collected from literature review and 2 sub-factors from Indian Mining experts during field study. These 199 sub-factors were initially categorised as 48 factors and one more factor was collected from Indian field experts. Finally, these 49 factors were thematically represented as principal factors and termed as operation, marketing and management, human resource, finance, resource and utility, corporate affairs and corporate social responsibility and environment.

Research limitations/implications

This study can be very helpful in the direction of different qualitative and quantitative studies, as the factors and sub-factors groups are identified.

Originality/value

The paper fulfils an identified need to provide a holistic review for understanding and documenting principal factors, unique factors and sub-factors those influence mining operation, profitability or sustainability issues of mines.

Details

World Journal of Engineering, vol. 17 no. 3
Type: Research Article
ISSN: 1708-5284

Keywords

Content available

Abstract

Details

Supply Chain Management: An International Journal, vol. 29 no. 3
Type: Research Article
ISSN: 1359-8546

Article
Publication date: 12 September 2022

Aishwarya Dash, S.P. Sarmah, Manoj Kumar Tiwari and Sarat Kumar Jena

Currently, digital technology has been proposed as a new archetype for developing an effective traceability system in the perishable food supply chain (FSC). Implementation of…

Abstract

Purpose

Currently, digital technology has been proposed as a new archetype for developing an effective traceability system in the perishable food supply chain (FSC). Implementation of such a system needs significant investment and the burden lies with the members of the supply chain. The purpose of this paper is to examine the impact on the profit of the supply chain members due to the implementation of an effective traceability system with such a large investment. The study also tries to explore the impact of the implementation of such a system by coordination among the members through a cost-sharing mechanism.

Design/methodology/approach

A two-level supply chain that comprises a supplier and retailer is analyzed using a game-theoretic approach. The mathematical models are developed considering the scenario for an individual, centralized and both members invest using a cost-sharing mechanism. For each of the models, the impact of product selling price, information sensing price and quality improvement level on profit is analyzed through numerical analysis.

Findings

The study reveals that consumer involvement can be a strong motivation for the supply chain members to initiate investment in the traceability system. Further, from an investment perspective cost-sharing model is beneficial compared to the individual investment-bearing model. This mechanism can coordinate as well as benefit the FSC members. However, the model is less beneficial to the centralized model from profit and quality improvement levels.

Practical implications

Food wastage can be less from supplier and retailer perspectives. Moreover, consumers can purchase food items only after verifying their shipping conditions. Consequently the food safety scandals can be reduced remarkably.

Originality/value

Digital technology adoption in the perishable FSC is still considered emerging. The present study helps organizations to implement a traceability system in the perishable FSC through consumer involvement and a cost-sharing mechanism.

Details

Benchmarking: An International Journal, vol. 30 no. 9
Type: Research Article
ISSN: 1463-5771

Keywords

Article
Publication date: 19 January 2023

Manoj A. Thomas, Ramandeep Kaur Sandhu, António Oliveira and Tiago Oliveira

This research aims to gain a holistic understanding of how video conferencing (VC) apps' media characteristics influence individuals' perceptions of VC apps and, ultimately, their…

Abstract

Purpose

This research aims to gain a holistic understanding of how video conferencing (VC) apps' media characteristics influence individuals' perceptions of VC apps and, ultimately, their use and continued use in professional settings.

Design/methodology/approach

A conceptual research model is developed by integrating constructs from media synchronicity theory (MST), social presence theory and the unified theory of acceptance and use of technology (UTAUT2) model, as well as ubiquity, technicality and perceived fees. Structural equation modeling (SEM) is used to empirically test the conceptual model using data collected from 252 working professionals from the European Union.

Findings

The results reveal that while performance expectancy (PE) and facilitating conditions (FC) are fundamental to VC app use, these factors alone do not explain the use and continuing use of VC apps in the professional context. Media characteristics that include synchronicity, social presence, and ubiquity are equally crucial to professionals using VC apps. It also confirms the moderating effect of convergence on the relationship between synchronicity and PE and the moderating effect of technicality and perceived fees on the relationship between ubiquity and FC.

Originality/value

For researchers, the study offers insights into the extent to which technological and socially derived characteristics of VC apps influence the routine tasks undertaken by professionals in virtual work settings. For practitioners, recommendations pivotal to the use of VC apps are presented to promote higher acceptance and improved well-being of the professional workforce.

Details

Internet Research, vol. 33 no. 6
Type: Research Article
ISSN: 1066-2243

Keywords

Article
Publication date: 4 September 2017

Manoj Joshi, Shailja Dixit and Amit Sinha

The purpose of this case study is to explore enterprise creation and explore the entrepreneurship process, which necessitates entrepreneurial recognition and entrepreneurial…

Abstract

Purpose

The purpose of this case study is to explore enterprise creation and explore the entrepreneurship process, which necessitates entrepreneurial recognition and entrepreneurial orientation. The case also investigates how an entrepreneurial firm appreciates the importance of innovative practices for an organisational growth.

Design/methodology/approach

The case is based on primary research, secondary information, followed by testing the case several times and plugging case gaps. To authenticate information, multiple sources have been used in a time frame of over one year.

Findings

This case clearly demonstrates ability by an entrepreneur towards opportunity recognition, pro-activeness, engaging innovative skills and a capacity to undertake risks.

Research limitations/implications

The findings are based on observations of one company and research carried through secondary sources, which may limit the theory creation.

Practical implications

The accomplishment of the firm is attributed in accepting opportunities and potentially utilising its strengths towards growth. The case reflects, how Ajay, the founder of a Start-up ‘Comfort and Shelter’, intrinsically motivated and with prior knowledge in the financial services sector, was able to translate opportunities effectively via his orientation skills. Besides this in his entrepreneurial journey, Ajay was able to scale the business by continuously orienting his start-up towards customer orientation.

Social implications

It is imperative to understand social needs of individuals, hereby in this case need for affordable homes. An entrepreneur can be driven by social needs and create a profitable enterprise.

Originality/value

The case is original and reflects entrepreneurial journey of an individual as well as that of an enterprise.

Details

Journal of Entrepreneurship in Emerging Economies, vol. 9 no. 3
Type: Research Article
ISSN: 2053-4604

Keywords

Article
Publication date: 31 December 2021

Jyothi N. and Rekha Patil

This study aims to develop a trust mechanism in a Vehicular ad hoc Network (VANET) based on an optimized deep learning for selfish node detection.

Abstract

Purpose

This study aims to develop a trust mechanism in a Vehicular ad hoc Network (VANET) based on an optimized deep learning for selfish node detection.

Design/methodology/approach

The authors built a deep learning-based optimized trust mechanism that removes malicious content generated by selfish VANET nodes. This deep learning-based optimized trust framework is the combination of the Deep Belief Network-based Red Fox Optimization algorithm. A novel deep learning-based optimized model is developed to identify the type of vehicle in the non-line of sight (nLoS) condition. This authentication scheme satisfies both the security and privacy goals of the VANET environment. The message authenticity and integrity are verified using the vehicle location to determine the trust level. The location is verified via distance and time. It identifies whether the sender is in its actual location based on the time and distance.

Findings

A deep learning-based optimized Trust model is used to detect the obstacles that are present in both the line of sight and nLoS conditions to reduce the accident rate. While compared to the previous methods, the experimental results outperform better prediction results in terms of accuracy, precision, recall, computational cost and communication overhead.

Practical implications

The experiments are conducted using the Network Simulator Version 2 simulator and evaluated using different performance metrics including computational cost, accuracy, precision, recall and communication overhead with simple attack and opinion tampering attack. However, the proposed method provided better prediction results in terms of computational cost, accuracy, precision, recall, and communication overhead than other existing methods, such as K-nearest neighbor and Artificial Neural Network. Hence, the proposed method highly against the simple attack and opinion tampering attacks.

Originality/value

This paper proposed a deep learning-based optimized Trust framework for trust prediction in VANET. A deep learning-based optimized Trust model is used to evaluate both event message senders and event message integrity and accuracy.

Details

International Journal of Pervasive Computing and Communications, vol. 18 no. 3
Type: Research Article
ISSN: 1742-7371

Keywords

Article
Publication date: 14 October 2020

Saurabh Kumar, Baidyanath Biswas, Manjot Singh Bhatia and Manoj Dora

The present study aims to identify and investigate the antecedents of enhanced level of cyber-security at the organisational level from both the technical and the human resource…

1729

Abstract

Purpose

The present study aims to identify and investigate the antecedents of enhanced level of cyber-security at the organisational level from both the technical and the human resource perspective using human–organisation–technology (HOT) theory.

Design/methodology/approach

The study has been conducted on 151 professionals who have expertise in dealing with cyber-security in organisations in sectors such as retail, education, healthcare, etc. in India. The analysis of the data is carried out using partial least squares based structural equation modelling technique (PLS-SEM).

Findings

The results from the study suggest that “legal consequences” and “technical measures” adopted for securing cyber-security in organisations are the most important antecedents for enhanced cyber-security levels in the organisations. The other significant antecedents for enhanced cyber-security in organisations include “role of senior management” and “proactive information security”.

Research limitations/implications

This empirical study has significant implications for organisations as they can take pre-emptive measures by focussing on important antecedents and work towards enhancing the level of cyber-security.

Originality/value

The originality of this research is combining both technical and human resource perspective in identifying the determinants of enhanced level of cyber-security in the organisations.

Details

Journal of Enterprise Information Management, vol. 34 no. 6
Type: Research Article
ISSN: 1741-0398

Keywords

1 – 10 of 19