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Article
Publication date: 31 July 2019

Waqar Azeem Khan, Mehboob Ali, Muhammad Waqas, M. Shahzad, F. Sultan and M. Irfan

This paper aims to address the flow of Sisko nanofluid by an unsteady curved surface. Non-uniform heat source/sink is considered for heat transfer analysis.

Abstract

Purpose

This paper aims to address the flow of Sisko nanofluid by an unsteady curved surface. Non-uniform heat source/sink is considered for heat transfer analysis.

Design/methodology/approach

Numerical solutions are constructed using bvp4c procedure.

Findings

Pressure profile inside boundary region is increased when A and K are enhanced.

Originality/value

No such analysis is yet presented.

Details

International Journal of Numerical Methods for Heat & Fluid Flow, vol. 29 no. 12
Type: Research Article
ISSN: 0961-5539

Keywords

Book part
Publication date: 12 June 2020

Farzana Nahid

Mentoring is an intense relationship between a senior experienced individual who is the mentor and a less experienced individual who is the protégé. Mentors provide counselling…

Abstract

Mentoring is an intense relationship between a senior experienced individual who is the mentor and a less experienced individual who is the protégé. Mentors provide counselling, guidance, advice, support and feedback for the protégé's personal and professional development. With the well-being of the family as the central issue in family firms, mentoring is often seen to be akin to a parent–child relationship. In Bangladesh, paternalistic and informal parental mentoring is the norm for grooming children both morally and professionally. Using six caselets of large family firms of Bangladesh, this chapter provides insight into the paternalistic style of mentoring, and also the generational differences in mentoring between the firm's owner and his successor.

Details

Mentorship-driven Talent Management
Type: Book
ISBN: 978-1-78973-691-5

Keywords

Article
Publication date: 1 June 1994

B. H. V. Topping and A. I. Khan

This paper describes a parallel algorithm for the dynamic relaxation(DR) method. The basic theory of the dynamic relaxation is brieflyreviewed to prepare the reader for the…

Abstract

This paper describes a parallel algorithm for the dynamic relaxation (DR) method. The basic theory of the dynamic relaxation is briefly reviewed to prepare the reader for the parallel implementation of the algorithm. Some fundamental parallel processing schemes have been explored for the implementation of the algorithm. Geometric Parallelism was found suitable for the DR method when using transputer‐based systems. The evolution of the parallel algorithm is given by identifying the steps which may be executed in parallel. The structure of the parallel code is discussed and then described algorithmically. Two geometrically non‐linear parallel finite element analyses have been performed using different mesh densities. The number of processors was varied to investigate algorithm efficiency and speed ups. Using the results obtained it is shown that the computational efficiency increases when the computational load per processor is increased.

Details

Engineering Computations, vol. 11 no. 6
Type: Research Article
ISSN: 0264-4401

Keywords

Article
Publication date: 23 November 2018

Gangadhar Kotha, Keziya Kukkamalla and S.M. Ibrahim

The purpose of this paper is to examine the magneto hydrodynamic flow and heat transfer of nanofluids over a permeable wedge based on engine oil which is under the effects of…

Abstract

Purpose

The purpose of this paper is to examine the magneto hydrodynamic flow and heat transfer of nanofluids over a permeable wedge based on engine oil which is under the effects of thermal radiation and convective heating.

Design/methodology/approach

The equations governing the flow are transformed into differential equations by applying similarity transformations. Keller box method is used to bring out the numerical solution.

Findings

The discovery interprets that temperature as well as the velocity of Ag-engine oil nanofluids are more noticeable than Cu-engine oil nanofluids. Thermal boundary layer increases for radiation parameter as well as Biot number. Fluctuations of co-efficient of drag skin friction as well heat transfer rate at the wall are also tested.

Originality/value

Till now, no numerical studies are reported on the heat transfer enhancement of the permeable wedge under thermal radiation on engine oil nanofluid flow by considering convective heating.

Details

Multidiscipline Modeling in Materials and Structures, vol. 15 no. 1
Type: Research Article
ISSN: 1573-6105

Keywords

Article
Publication date: 6 April 2020

Riffat Blouch, Aiza Yasmeen, Muhammad Majid Khan and Wajid Shakeel

The purpose of the study is to examine the role of the types of psychological contract (PC) to enhance knowledge sharing (KS) behavior of employees through the intervention of…

Abstract

Purpose

The purpose of the study is to examine the role of the types of psychological contract (PC) to enhance knowledge sharing (KS) behavior of employees through the intervention of perceived organizational support (POS).

Design/methodology/approach

The current study uses primary sources to get data from the participants of both private and public hospitals. Overall, 210 respondents participated in the study, which later subjected to the analysis using CAUSALMED procedures using statistical analysis software.

Findings

The findings from the study projected that all types of psychological have a considerable effect on KS behavior of employees, either directly or through the intervening mechanism. Furthermore, the study also indicates that if employees’ POS, they will share a stronger bond with the organization, which will be beneficial for the organizations’ health.

Research limitations/implications

Firstly, despite the fact that this study proposes valuable insights into KS behavior; it allows some impediments of a primary study. Secondly, the research is constrained to the hospital industry. Finally, this exploration can likewise be reinforced by incorporating other intervening mechanisms, to give an extensive understanding of the connection between employees’ perception regarding PC and KS behavior.

Practical implications

The findings of the present research have potential applications for human resource managers of the healthcare industry to place more emphasis on the types of PC, organizational support and KS among the employees to achieve a competitive advantage in this dynamic environment through knowledge management, which is considered a strategic asset nowadays.

Originality/value

This study provides an original contribution by identifying the diverse paths, indicating how the types of PC can impact KS with employees’ perceptions toward organizational support. It also highlights that how the heaths care industries, as compare to the old practices can encourage a culture of KS in this highly competitive and dynamic environment to remain at the top on the market.

Details

Global Knowledge, Memory and Communication, vol. 70 no. 1/2
Type: Research Article
ISSN: 2514-9342

Keywords

Open Access
Article
Publication date: 23 December 2019

Ammara Nosheen, Aneela Nawaz, Khuram Ali Khan and Khalid Mahmood Awan

In the paper we extend some Hardy and Littlewood type inequalities on time scales for the function of n…

Abstract

In the paper we extend some Hardy and Littlewood type inequalities on time scales for the function of n variables. Special cases of obtained results include generalized Wirtinger, Hardy and Littlewood type inequalities.

Details

Arab Journal of Mathematical Sciences, vol. 26 no. 1/2
Type: Research Article
ISSN: 1319-5166

Keywords

Open Access
Article
Publication date: 31 December 2018

Khuram Ali Khan, Tasadduq Niaz, Đilda Pečarić and Josip Pečarić

In this work, we estimated the different entropies like Shannon entropy, Rényi divergences, Csiszár divergence by using Jensen’s type functionals. The Zipf’s–Mandelbrot law and…

Abstract

In this work, we estimated the different entropies like Shannon entropy, Rényi divergences, Csiszár divergence by using Jensen’s type functionals. The Zipf’s–Mandelbrot law and hybrid Zipf’s–Mandelbrot law are used to estimate the Shannon entropy. The Abel–Gontscharoff Green functions and Fink’s Identity are used to construct new inequalities and generalized them for m-convex function.

Details

Arab Journal of Mathematical Sciences, vol. 26 no. 1/2
Type: Research Article
ISSN: 1319-5166

Keywords

Article
Publication date: 11 August 2020

Faheem Ur Rehman, Yibing Ding, Abul Ala Noman and Muhammad Asif Khan

Over the past two decades, China’s outward foreign direct investment (OFDI) has risen remarkably. Whether such an increase affects the Chinese export diversification (ED) is a

Abstract

Purpose

Over the past two decades, China’s outward foreign direct investment (OFDI) has risen remarkably. Whether such an increase affects the Chinese export diversification (ED) is a significant issue that has surprisingly remained unaddressed. This study aims to explain this issue that how OFDI plays a vital role in symmetric and asymmetric effects on its ED.

Design/methodology/approach

The authors introduce a robust nonlinear autoregressive distributed lag (NARDL) model. Ironically, the purpose of this study is to analyze the symmetric and asymmetric effect of OFDI on ED.

Findings

The authors propose that growing OFDI would be more advantageous to China, rather than the policies of contraction. Therefore, the study provides valuable policy insights to consider the long-run asymmetric momentum given to ED by China’s OFDI.

Originality/value

The results of this study may seem to be an important newsletter for further policy discussion on how China can catch up on the benefits of ED through OFDI.

Details

Journal of Chinese Economic and Foreign Trade Studies, vol. 13 no. 2
Type: Research Article
ISSN: 1754-4408

Keywords

Article
Publication date: 28 February 2024

Ahmed Jan, Muhammad F. Afzaal, Muhammad Mushtaq, Umer Farooq and Muzammil Hussain

This study investigates the flow and heat transfer in a magnetohydrodynamic (MHD) ternary hybrid nanofluid (HNF), considering the effects of viscous dissipation and radiation.

Abstract

Purpose

This study investigates the flow and heat transfer in a magnetohydrodynamic (MHD) ternary hybrid nanofluid (HNF), considering the effects of viscous dissipation and radiation.

Design/methodology/approach

The transport equations are transformed into nondimensional partial differential equations. The local nonsimilarity (LNS) technique is implemented to truncate nonsimilar dimensionless system. The LNS truncated equation can be treated as ordinary differential equations. The numerical results of the equation are accomplished through the implementation of the bvp4c solver, which leverages the fourth-order three-stage Lobatto IIIa formula as a finite difference scheme.

Findings

The findings of a comparative investigation carried out under diverse physical limitations demonstrate that ternary HNFs exhibit remarkably elevated thermal efficiency in contrast to conventional nanofluids.

Originality/value

The LNS approach (Mahesh et al., 2023; Khan et al., 20223; Farooq et al., 2023) that we have proposed is not currently being used to clarify the dynamical issue of HNF via porous media. The LNS method, in conjunction with the bvp4c up to its second truncation level, yields numerical solutions to nonlinear-coupled PDEs. Relevant results of the topic at hand, obtained by adjusting the appropriate parameters, are explained and shown visually via tables and diagrams.

Details

Multidiscipline Modeling in Materials and Structures, vol. 20 no. 2
Type: Research Article
ISSN: 1573-6105

Keywords

Book part
Publication date: 3 August 2017

Matt Bower

This chapter provides a comprehensive review of research and developments relating to the use of Web 2.0 technologies in education. As opposed to early educational uses of the…

Abstract

This chapter provides a comprehensive review of research and developments relating to the use of Web 2.0 technologies in education. As opposed to early educational uses of the Internet involving publication of static information on web pages, Web 2.0 tools offer a host of opportunities for educators to provide more interactive, collaborative, and creative online learning experiences for students. The chapter starts by defining Web 2.0 tools in terms of their ability to facilitate online creation, editing, and sharing of web content. A typology of Web 2.0 technologies is presented to illustrate the wide variety of tools at teachers’ disposal. Educational uses of Web 2.0 technologies such as wikis, blogs, and microblogging are explored, in order to showcase the variety of designs that can be utilized. Based on a review of the research literature the educational benefits of using Web 2.0 technologies are outlined, including their ability to facilitate communication, collaborative knowledge building, student-centered activity, and vicarious learning. Similarly, issues surrounding the use of Web 2.0 tools are distilled from the literature and discussed, such as the possibility of technical problems, collaboration difficulties, and plagiarism. Two case studies involving the use Web 2.0 tools to support personalized learning and small group collaboration are detailed to exemplify design possibilities in greater detail. Finally, design recommendations for learning and teaching using Web 2.0 are presented, again based on findings from the research literature.

Details

Design of Technology-Enhanced Learning
Type: Book
ISBN: 978-1-78714-183-4

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