Manoj Kumar Nayak, Sachin Shaw, H. Waqas and Taseer Muhammad
The purpose of this study is to investigate the Cattaneo-Christov double diffusion, multiple slips and Darcy-Forchheimer’s effects on entropy optimized and thermally radiative…
Abstract
Purpose
The purpose of this study is to investigate the Cattaneo-Christov double diffusion, multiple slips and Darcy-Forchheimer’s effects on entropy optimized and thermally radiative flow, thermal and mass transport of hybrid nanoliquids past stretched cylinder subject to viscous dissipation and Arrhenius activation energy.
Design/methodology/approach
The presented flow problem consists of the flow, heat and mass transportation of hybrid nanofluids. This model is featured with Casson fluid model and Darcy-Forchheimer model. Heat and mass transportations are represented with Cattaneo-Christov double diffusion and viscous dissipation models. Multiple slip (velocity, thermal and solutal) mechanisms are adopted. Arrhenius activation energy is considered. For graphical and numerical data, the bvp4c scheme in MATLAB computational tool along with the shooting method is used.
Findings
Amplifying curvature parameter upgrades the fluid velocity while that of porosity parameter and velocity slip parameter whittles down it. Growing mixed convection parameter, curvature parameter, Forchheimer number, thermally stratified parameter intensifies fluid temperature. The rise in curvature parameter and porosity parameter enhances the solutal field distribution. Surface viscous drag gets controlled with the rising of the Casson parameter which justifies the consideration of the Casson model. Entropy generation number and Bejan number upgrades due to growth in diffusion parameter while that enfeeble with a hike in temperature difference parameter.
Originality/value
To the best of the authors’ knowledge, this research study is yet to be available in the existing literature.
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Rajib Gope, Manoj Kumar Nayak, Sachin Shaw and Sabyasachi Mondal
The major goal of this article is to investigate flow and thermal aspects of Oldroyd B with hybrid nanostructure subject to a radially stretched surface under the influence of low…
Abstract
Purpose
The major goal of this article is to investigate flow and thermal aspects of Oldroyd B with hybrid nanostructure subject to a radially stretched surface under the influence of low and moderate Prandtl numbers.
Design/methodology/approach
The non-dimensional governing equations are solved considering BVP4C in MATLAB as instrumental.
Findings
Entropy generation effect is analyzed. Radial velocity and entropy generation exhibit opposite effect in response to amplified relaxation and retardation time parameters in case of both low and moderate Prandtl numbers. Augmented relaxation and retardation time parameters controls heat transfer rate.The results show that increasing the aspect ratio increases both the average Nusselt and entropy generation numbers for each value of the Prandtl number, while increasing the prandtl number decreases both. There is also a minimum value for the entropy generation number at a given relaxation and retardation parameter.
Research limitations/implications
Assume that the Oldroyd B fluid is dispersed with hybrid nanostructure in order to ameliorate thermal conductivity of Oldroyd B fluid so as to make it as best coolant.
Practical implications
The low range of Prandtl number comprising particles of air, gas, etc. and moderate range of Prandtl number comprising particles of honey, thin motor oil, or any non-Newtonian liquid. The hybrid nanofluid is radiative in nature. Also, the effects of significant physical parameters on entropy generation are highlighted. The entropy generation number intensifies due to the rise in temperature difference parameter at low/moderate Prandtl number effectively. Entropy minimization can lead to the amelioration of available energy thereby enhances the efficiency of several thermal systems.
Originality/value
This article's primary goal is to investigate the flow and thermal aspects of Oldroyd B with a hybrid nanostructure subject to a radially stretched surface under the influence of low and moderate Prandtl numbers.
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Abhishek Behl, Vijay Pereira, Nirma Jayawardena, Achint Nigam and Sachin Mangla
This study aims to investigate an under-researched area, an international marketing perspective, based on international dynamic capability, environmental sustainability and…
Abstract
Purpose
This study aims to investigate an under-researched area, an international marketing perspective, based on international dynamic capability, environmental sustainability and organizational marketing performance in gamification and non-gamification-based organizational culture (OC). This paper deepens the understanding of gamification-based and non-gamification-based OC influence on innovation capability and environmental and organizational marketing performance through the theory of organizational creativity and the theory of administrative behavior (AB).
Design/methodology/approach
The authors collect data from firms that abide by the ISO 14091 certifications to ensure the proper quality standards. Primary data from 384 firms are used to test the hypotheses. The results would help firms invest in technological solutions by practicing creativity over time. Additionally, the study helps explore how AB is critical in steering technological creativity for making firms climate-conscious.
Findings
The study's findings identified that OC has a positive influence on technological innovation capabilities and environmental innovation capabilities. Technological innovation capabilities have a beneficial impact on environmental sustainability. Environmental sustainability appears to have a substantial correlation with technological innovation skills. Environmental innovation capabilities positively impact environmental sustainability and organizational marketing performance. A moderating effect of gamification on the international dynamic capabilities within a relationship between organizational culture and environmental innovation capabilities exists.
Originality/value
The investigation is confined to understanding how gamification-based and non-gamification-based organizational marketing culture affects innovation capability, environmental sustainability and organizational performance through the lens of theory of organizational creativity and theory of AB.
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Riya Sureka, Satish Kumar, Sachin Kumar Mangla and Flavio Hourneaux Junior
International Journal of Productivity and Performance Management (IJPPM) is one of the prominent journals publishing on general management with a particular focus on performance…
Abstract
Purpose
International Journal of Productivity and Performance Management (IJPPM) is one of the prominent journals publishing on general management with a particular focus on performance management and productive sciences. The objective of this study is to provide an academic structure overview of the journal between 2004 and 2018 using bibliometric tools.
Design/methodology/approach
Data used for this study were extracted using the Scopus database. Bibliometric analysis using several bibliometric indicators are adopted to know the major trends and themes of the journal. Mapping of bibliographic data is carried using VOSviewer and Gephi software.
Findings
Authors: Most of the IJPPM contributors are affiliated to the UK and India. Journal Performance: It is gaining pre-eminence in terms of total citations as well as CiteScores. Main themes: Major themes published in the journal are “performance management”, “productivity”, “six sigma”, “lean” and “supply chain management”.
Originality/value
IJPPM's growing influence in the scientific community has generated the interest to analyse the journal's publication and growth pattern. Moreover, no such retrospective bibliometric study for IJPPM is conducted so far.
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U.S. Mahabaleshwar, S.M. Sachin, A.B. Vishalakshi, Gabriella Bognar and Bengt Ake Sunden
The purpose of this paper is to study the two-dimensional micropolar fluid flow with conjugate heat transfer and mass transpiration. The considered nanofluid has graphene…
Abstract
Purpose
The purpose of this paper is to study the two-dimensional micropolar fluid flow with conjugate heat transfer and mass transpiration. The considered nanofluid has graphene nanoparticles.
Design/methodology/approach
Governing nonlinear partial differential equations are converted to nonlinear ordinary differential equations by similarity transformation. Then, to analyze the flow, the authors derive the dual solutions to the flow problem. Biot number and radiation effect are included in the energy equation. The momentum equation was solved by using boundary conditions, and the temperature equation solved by using hypergeometric series solutions. Nusselt numbers and skin friction coefficients are calculated as functions of the Reynolds number. Further, the problem is governed by other parameters, namely, the magnetic parameter, radiation parameter, Prandtl number and mass transpiration. Graphene nanofluids have shown promising thermal conductivity enhancements due to the high thermal conductivity of graphene and have a wide range of applications affecting the thermal boundary layer and serve as coolants and thermal management systems in electronics or as heat transfer fluids in various industrial processes.
Findings
Results show that increasing the magnetic field decreases the momentum and increases thermal radiation. The heat source/sink parameter increases the thermal boundary layer. Increasing the volume fraction decreases the velocity profile and increases the temperature. Increasing the Eringen parameter increases the momentum of the fluid flow. Applications are found in the extrusion of polymer sheets, films and sheets, the manufacturing of plastic wires, the fabrication of fibers and the growth of crystals, among others. Heat sources/sinks are commonly used in electronic devices to transfer the heat generated by high-power semiconductor devices such as power transistors and optoelectronics such as lasers and light-emitting diodes to a fluid medium, thermal radiation on the fluid flow used in spectroscopy to study the properties of materials and also used in thermal imaging to capture and display the infrared radiation emitted by objects.
Originality/value
Micropolar fluid flow across stretching/shrinking surfaces is examined. Biot number and radiation effects are included in the energy equation. An increase in the volume fraction decreases the momentum boundary layer thickness. Nusselt numbers and skin friction coefficients are presented versus Reynolds numbers. A dual solution is obtained for a shrinking surface.
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Anil Kumar, Rohit Kr Singh and Sachin Modgil
This paper presents the concerns in agri-food supply chain. Further the research investigates the role of information and communication technology (ICT) in agri-food supply chain…
Abstract
Purpose
This paper presents the concerns in agri-food supply chain. Further the research investigates the role of information and communication technology (ICT) in agri-food supply chain and determines the impact of supply chain management (SCM) practices on firm performance.
Design/methodology/approach
The theoretical framework was proposed for the study on the basis of existing literature. Data for the study was collected with the help of structured questionnaire from 121 executives and officers of the public food distribution agency. Partial least square (PLS)–structured equation modeling was employed to test the framework and hypotheses.
Findings
The results indicate that ICT and SCM practices (logistics integration and supplier relationships) have a significant relationship. Furthermore, SCM practices (information sharing, supplier relationship and logistics integration) have a significant and positive impact on performance of the organization.
Research limitations/implications
Further research could be carried out to test the moderation effect of SCM practices between ICT and organizational performance (OP). Extending the research study to the companies operating in other sectors can enhance the external validity of the study and improve the accuracy of parameters examined.
Practical implications
This study can be of interest to the agri-food industry as well as other industry practitioners interested in improving the performance of the organization from the view of supply chain.
Originality/value
The outcomes of this study have important implications that translate into a series of recommendations for the management of public food distribution as well as other agri-food-based supply chains.
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Anil Kumar, Amit Pal, Ashwani Vohra, Sachin Gupta, Suryakant Manchanda and Manoj Kumar Dash
Supplier selection for capital procurement is a major strategic decision for any automobile company. The decision determines the success of the company and must be taken…
Abstract
Purpose
Supplier selection for capital procurement is a major strategic decision for any automobile company. The decision determines the success of the company and must be taken systematically with the utmost transparency. The purpose of this paper is to construct capital procurement decision-making model to optimize supplier selection in the Indian automobile industry.
Design/methodology/approach
To achieve the stated objective, a combined approach of fuzzy theory and AHP-DEMATEL is applied. Evaluation parameters are identified through an extensive literature review and criteria validation has been introduced through a Fuzzy Delphi method by using fuzzy linguistic scales to handle the vagueness of information. AHP is employed to find the priority weight of criteria, although an inter-relationship map among criteria is not possible through AHP alone since it considers all criteria as independent. To overcome this, DEMATEL is used to establish cause-effect relationships among criteria.
Findings
The results show that the total cost of ownership (TOC) is the first weighted criterion in supplier selection for capital procurement, followed by manufacturing flexibility and maintainability, then conformity with requirement. The cause-effect model shows that supplier profile, TOC, service support and conformity with requirement are in the cause group and are considered to be the most critical factors in selecting the supplier.
Originality/value
The study’s outcome can help the automobile industry to optimize their selection process in selecting their suppliers for capital procurement; the proposed model can provide guidelines and direction in this regard.
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Sub-Saharan businesses share resemblance with contemporary post-modern organisations in the western world by blurred divisions between job and non-job activities. Ethnographic…
Abstract
Sub-Saharan businesses share resemblance with contemporary post-modern organisations in the western world by blurred divisions between job and non-job activities. Ethnographic immersion then means that negotiations of trust and rapport take place across arenas ranging from business meetings till bars. The ethno-informed approach shows flirtation as a finely tuned interaction collaboratively constituted that may prolong field relations and access to a variety of data. This constitutes the background to the discussion of the dilemmas of good rapport.
I claim that flirtation should be regarded a resource the ethnographer can draw upon, but one that demands an awareness of negotiating alternative identities as buffer towards delicate or troublesome dimensions in field relations.
Shiwangi Singh, Akshay Chauhan and Sanjay Dhir
The purpose of this paper is to use Twitter analytics for analyzing the startup ecosystem of India.
Abstract
Purpose
The purpose of this paper is to use Twitter analytics for analyzing the startup ecosystem of India.
Design/methodology/approach
The paper uses descriptive analysis and content analytics techniques of social media analytics to examine 53,115 tweets from 15 Indian startups across different industries. The study also employs techniques such as Naïve Bayes Algorithm for sentiment analysis and Latent Dirichlet allocation algorithm for topic modeling of Twitter feeds to generate insights for the startup ecosystem in India.
Findings
The Indian startup ecosystem is inclined toward digital technologies, concerned with people, planet and profit, with resource availability and information as the key to success. The study categorizes the emotions of tweets as positive, neutral and negative. It was found that the Indian startup ecosystem has more positive sentiments than negative sentiments. Topic modeling enables the categorization of the identified keywords into clusters. Also, the study concludes on the note that the future of the Indian startup ecosystem is Digital India.
Research limitations/implications
The analysis provides a methodology that future researchers can use to extract relevant information from Twitter to investigate any issue.
Originality/value
Any attempt to analyze the startup ecosystem of India through social media analysis is limited. This research aims to bridge such a gap and tries to analyze the startup ecosystem of India from the lens of social media platforms like Twitter.
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Gunjan Soni and Rambabu Kodali
The purpose of this paper is to identify a classification scheme which represents the variation in business and supply chain performance of supply chains in Indian manufacturing…
Abstract
Purpose
The purpose of this paper is to identify a classification scheme which represents the variation in business and supply chain performance of supply chains in Indian manufacturing industry. Classification is done by presenting an empirical taxonomy of clusters representing supply chains in Indian manufacturing industry based on variation in supply chain excellence index (SCEI) and business performance index (BPI).
Design/methodology/approach
The clustering of supply chains in Indian manufacturing industry is done by considering BPI and SCEI as clustering variables, which were found by using survey responses and results of a prior empirical study which was carried out in Indian manufacturing industry. The cluster analysis is performed by using Ward’s agglomerative hierarchical clustering followed by using K-means clustering algorithm to establish final set of clusters.
Findings
It was found that supply chains in Indian manufacturing industries can be clustered in four major clusters which are named as strategic, celebrity, capable and undeveloped cluster. The characteristics of these clusters reveal some major characteristics of supply chains in Indian manufacturing industry.
Originality/value
The research work presented in this paper takes a novel way to introduce the clusters of supply chains in Indian manufacturing industry. The researchers who are seeking patterns in large data sets of manufacturing companies of Indian industry will be benefitted by using the proposed clusters. While practitioners who are seeking to move their supply chain one step ahead will also reap the benefits of the paper by seeking the characteristics of particular cluster.