Search results

1 – 10 of 274
Per page
102050
Citations:
Loading...
Access Restricted. View access options
Article
Publication date: 31 August 2020

Ali Rama

The study aims to capture customers’ different price expectations by constructing a multidimensional price perception in Islamic banking setting and the impact on customer…

1130

Abstract

Purpose

The study aims to capture customers’ different price expectations by constructing a multidimensional price perception in Islamic banking setting and the impact on customer satisfaction and behavioral intention, as a single price perception approach cannot reflect heterogeneity of price expectations. The study conceptualized customers’ price expectation into price reliability, price confidence, price transparency, relative price, price–quality ratio and price fairness.

Design/methodology/approach

An online questionnaire was distributed to Islamic banking customers in Indonesia to test seven proposed hypotheses of price perceptions on customer satisfaction and behavioral intention. The instrument used a five-point Likert-type scale to capture customer perception on the instrument variables and analyzed the functional relation of the model using multiple regression analysis.

Findings

Empirical findings reveal that customers experienced more price expectations in their banking decision-making process. The number and complexity of price expectations depend primarily on the customers’ interest, particularly on price transparency, relative price and price–quality ratio, and these dimensions affect satisfaction and behavioral intention. Islamic banking customers in Indonesia are highly aware of price transparency, have “relative thinking” on price differences and put price–quality ratio in their assessment.

Research limitations/implications

The study was conducted in Indonesian Islamic banking industry; the extension to other different countries may reveal difference in price complexity and implication to behavioral consequences. Any difference in customer attitude would bring managerial implication for different Islamic bank managers. Additionally, this study developed and examined five price dimensions, however, there may be additional price dimensions in different environment contexts. Further research is needed to identify any other price expectations that may affect customers’ behavior.

Practical implications

The results of this research allow bank practitioners to develop relevant pricing strategy to fulfil customers’ different price expectations in their decision-making process. Appropriate measures to different price expectations improve satisfaction, loyalty and, in turn, increase bank profits. Furthermore, this research provides useful information for future researchers in different settings.

Originality/value

This paper provides empirical analysis of pricing strategy by Indonesian Islamic banks and insights on customers’ experience toward different price expectations.

Details

Journal of Islamic Accounting and Business Research, vol. 11 no. 10
Type: Research Article
ISSN: 1759-0817

Keywords

Access Restricted. View access options
Article
Publication date: 7 June 2023

Nirmalendu Biswas, Dipak Kumar Mandal, Nirmal K. Manna, Rama S.R. Gorla and Ali J. Chamkha

This study aims to investigate the impact of different heater geometries (flat, rectangular, semi-elliptical and triangular) on hybrid nanofluidic (Cu–Al2O3–H2O) convection in…

154

Abstract

Purpose

This study aims to investigate the impact of different heater geometries (flat, rectangular, semi-elliptical and triangular) on hybrid nanofluidic (Cu–Al2O3–H2O) convection in novel umbrella-shaped porous thermal systems. The system is top-cooled, and the identical heater surfaces are provided centrally at the bottom to identify the most enhanced configuration.

Design/methodology/approach

The thermal-fluid flow analysis is performed using a finite volume-based indigenous code, solving the nonlinear coupled transport equations with the Darcy number (10–5 ≤ Da ≤ 10–1), modified Rayleigh number (10 ≤ Ram ≤ 104) and Hartmann number (0 ≤ Ha ≤ 70) as the dimensionless operating parameters. The semi-implicit method for pressure linked equations algorithm is used to solve the discretized transport equations over staggered nonuniform meshes.

Findings

The study demonstrates that altering the heater surface geometry improves heat transfer by up to 224% compared with a flat surface configuration. The triangular-shaped heating surface is the most effective in enhancing both heat transfer and flow strength. In general, flow strength and heat transfer increase with rising Ram and decrease with increasing Da and Ha. The study also proposes a mathematical correlation to predict thermal characteristics by integrating all geometric and flow control variables.

Research limitations/implications

The present concept can be extended to further explore thermal performance with different curvature effects, orientations, boundary conditions, etc., numerically or experimentally.

Practical implications

The present geometry configurations can be applied in various engineering applications such as heat exchangers, crystallization, micro-electronic devices, energy storage systems, mixing processes, food processing and different biomedical systems (blood flow control, cancer treatment, medical equipment, targeted drug delivery, etc.).

Originality/value

This investigation contributes by exploring the effect of various geometric shapes of the heated bottom on the hydromagnetic convection of Cu–Al2O3–H2O hybrid nanofluid flow in a complex umbrella-shaped porous thermal system involving curved surfaces and multiphysical conditions.

Details

International Journal of Numerical Methods for Heat & Fluid Flow, vol. 33 no. 9
Type: Research Article
ISSN: 0961-5539

Keywords

Access Restricted. View access options
Article
Publication date: 12 August 2021

Nirmalendu Biswas, Dipak Kumar Mandal, Nirmal K. Manna, Rama Subba Reddy Gorla and Ali J. Chamkha

The aims of this study is to numerically investigate the thermal phenomena during magnetohydrodynamic (MHD) free convection in an oblique enclosure filled with porous media…

185

Abstract

Purpose

The aims of this study is to numerically investigate the thermal phenomena during magnetohydrodynamic (MHD) free convection in an oblique enclosure filled with porous media saturated with Cu–Al2O3/water hybrid nanofluid and heated at the left wavy wall. The thermophysical phenomena are explored thoroughly by varying the amplitude (λ) and undulation (n) of the wavy wall and the inclination of the enclosure (γ) along with other pertinent physical parameters. Darcy–Rayleigh number (Ram), Darcy number (Da), Hartmann number (Ha) and nanoparticle volumetric fraction (ϕ). The effect of all parameters has been analyzed and represented by using heatlines, isotherms, streamlines, average Nusselt number and local Nusselt number.

Design/methodology/approach

The finite volume method is used to work out the transport equations coupled with velocity, pressure and temperature subjected to non-uniform staggered grid structure after grid-sensitivity analysis by an indigenous computing code and the semi-implicit method for pressure linked equations (SIMPLE) algorithm. The solution process is initiated following an iterative approach through the alternate direction implicit sweep technique and the tridiagonal matrix algorithm (TDMA) algorithm. The iterative process is continued until successive minimization of the residuals (<1e-8) for the governing equations.

Findings

This study reveals that the increase in the heating surface area does not always favor heat transfer. An increase in the undulation amplitude enhances the heat transfer; however, there is an optimum value of undulation of the wavy wall for this. The heat transfer enhancement because of the wall curvature is revealed at higher Ram, lower Da and Ha and lower volume fraction of nanoparticles. In general, this augmentation is optimum for four undulations of the wavy wall with an amplitude of λ = 0.3. The heat transfer enhancement can be more at the cavity inclination   γ = 45°.

Research limitations/implications

The technique of this investigation could be used in other multiphysical areas involving partial porous layers, conducting objects, different heating conditions, wall motion, etc.

Practical implications

This study is to address MHD thermo-fluid phenomena of Cu–Al2O3/water-based hybrid nanofluid flow through a non-Darcian porous wavy cavity at different inclinations. The amplitude and number of undulations of the wavy wall, permeability of the porous medium, magnetic field intensity, nanoparticle volumetric fraction and inclinations of the enclosure play a significant role in the heat transfer process. This analysis and the findings of this work can be useful for the design and control of similar thermal systems/devices.

Originality/value

Many researchers have examined the problem of buoyancy-induced free convection in a wavy-porous cavity packed with regular fluids or nanofluids. However, the effect of magnetic fields along with the amplitude (λ) at different undulations (n) of the heated wavy wall of an inclined enclosure is not attended so far to understand the transport mechanisms. Most often, the evolutions of the thermo-fluid phenomena in such complex geometries invoking different multiphysics are very intricate. Numerical implementations for simulations and subsequent post-processing of the results are also challenging.

Details

International Journal of Numerical Methods for Heat & Fluid Flow, vol. 32 no. 5
Type: Research Article
ISSN: 0961-5539

Keywords

Access Restricted. View access options
Article
Publication date: 16 November 2021

Dipak Kumar Mandal, Milan Kumar Mondal, Nirmalendu Biswas, Nirmal K. Manna, Rama Subba Reddy Gorla and Ali J. Chamkha

This study aims to focus on a thermo-fluid flow in a partially driven cavity (PDC) using Cu-water nanoliquid, magnetic field and porous substance. The cooling and sliding motion…

91

Abstract

Purpose

This study aims to focus on a thermo-fluid flow in a partially driven cavity (PDC) using Cu-water nanoliquid, magnetic field and porous substance. The cooling and sliding motion are applied on the upper half of the vertical walls and the bottom wall is heated. Thermal characteristics are explored to understand magnetohydrodynamic convection in a nanoliquid filled porous system from a fundamental viewpoint. The governing parameters involved to cater to the moving speed of the sidewalls and partial translation direction are the relative strength of thermal buoyancy, porous substance permeability, magnetic field intensity, nanoparticle suspension and orientation of the cavity.

Design/methodology/approach

The coupled transport equations of the problem are solved using an in-house developed finite volume-based computing code. The staggered nonuniform grids along the x and y directions are used. The SIMPLE algorithm technique is considered for the iterative solution of the discretized equations with the convergence check of the continuity mass defect below 10–10.

Findings

The present study unveils that the heat transfer enhances at higher Ri with the increasing value of Re, irrespective of the presence of a porous substance or magnetic field or the concentration of nanofluid. Apart from different flow controlling parameters, the wall motions have a significant contribution to the formation of flow vortices and corresponding heat transfer. Orientation of the cavity significantly alters the transport process within the cavity. The upward wall velocity for both the sidewalls could be a better choice to enhance the high heat transfer (approximately 88.39% at Richardson and Reynolds numbers, respectively, 0.1 and 200).

Research limitations/implications

Considering other multi-physical scenarios like porous layers, conducting block, microorganisms and the present investigation could be further extended to analyze a problem of complex flow physics.

Practical implications

In this study, the concept of partially driven wall motion has been adopted under the Cu-water nanoliquid, magnetic field, porous substance and oblique enclosure. All the involved flow-controlling parameters have been experimented with under a wide parametric range and associated thermo-flow physics are analyzed in detail. This outcome of this study can be very significant for designing as well as controlling thermal devices.

Originality/value

The convective process in a partially driven cavity (PDC) with the porous medium has not been investigated in detail considering the multi-physical scenarios. Thus, the present effort is motivated to explore the thermal convection in such an oblique enclosure. The enclosure is heated at its bottom and has partially moving-wall cold walls. It consists of various multi-physical conditions like porous structure, magnetic field, Cu–H2O nanoliquid, etc. The system performance is addressed under different significant variables such as Richardson number, Reynolds number, Darcy number, Hartmann number, nanoliquid concentration and orientation of cavity.

Details

International Journal of Numerical Methods for Heat & Fluid Flow, vol. 32 no. 7
Type: Research Article
ISSN: 0961-5539

Keywords

Access Restricted. View access options
Article
Publication date: 18 August 2022

Dipak Kumar Mandal, Nirmalendu Biswas, Nirmal K. Manna, Rama Subba Reddy Gorla and Ali J. Chamkha

This study aims to numerically examine the influence of various geometric parameters of a novel W-shaped porous cavity undergoing hybrid nanofluid-based magnetohydrodynamic mixed…

360

Abstract

Purpose

This study aims to numerically examine the influence of various geometric parameters of a novel W-shaped porous cavity undergoing hybrid nanofluid-based magnetohydrodynamic mixed convection. The W-shaped cavity is modified from the classical trapezoidal cavity by constructing a triangular shape at its bottom. This cavity is isothermally active at the bottom, with different numbers and heights of the triangular peak (or undulation). The heated hybrid nanofluid (Cu–Al2O3–H2O) flow is cooled through the translating top wall. Inclined sidewalls are thermally insulated. To compare the impacts of change in geometric parameters, a square cavity under similar boundary conditions is also simulated. This study is carried out systematically addressing the various influences from a range of parameters like side angles (γ), number (m) and height (λ) of the bottom undulation, Reynolds number (Re), Richardson number (Ri), Darcy number (Da), Hartmann number (Ha), hybrid nanoparticles volume fraction (φ) on the overall thermal performance of the cavity.

Design/methodology/approach

Applying the finite volume approach, the transport equations involving multiphysical conditions like porous substance, hybrid nanofluid, magnetic field and shearing force are solved numerically by using a written FORTRAN-based code following the SIMPLE algorithm. The algebraic equations are solved over all the control volumes in an iterative process using the alternate direction implicit scheme and the tri-diagonal matrix algorithm. The converged solution of the iterative process is obtained when the relative error levels satisfy the convergence criterion of 10–8 and 10–10 for the maximum residuals and the mass defect, respectively.

Findings

It is revealed that an increase in the bottom undulation height always improves the thermal energy transfer despite the reduction of fluid volume. Thermal energy transfer significantly depends on the heating and cooling surface lengths, fluid volume in the cavity and the magnitude of the bottom undulation height of the W-shaped cavity. With the increase in bottom undulation height, effective heating length increases by ∼28%, which leads to a ∼15% reduction in the effective volume of the working fluid and a gain in heat transfer by ∼56.48%. In general, the overall thermal energy transport is improved by increasing Re, Ri and Da; whereas it is suppressed by increasing Ha.

Research limitations/implications

There are many opportunities for future research experimentally or numerically, considering different curvature effects, orientations of the geometry, working fluids, boundary conditions, etc. Furthermore, this study could be extended by considering unsteady flow or turbulent flow.

Practical implications

In many modern systems/processes pertaining to materials processing, continuous casting, food processing, chemical reactors, biomedical applications, etc. fine control in the transport process is a major concern. The findings of this analysis can effectively be useful for other applications for getting more control features in terms of achieving the operational objectives. The approach of the system analysis (considering geometrical size parameters to delve into the underlying transport physics) and the obtained simulated results presented in the work can usefully be applicable to similar thermal systems/devices such as materials processing, thermal mixing, chemical reactors, heat exchangers, etc.

Originality/value

From the well-documented and vast pool of literature survey, it is understood that there exists no such investigation on the considered geometry and study. This study contributes a lot to understanding magnetic field moderated thermofluid flow of a hybrid nanofluid in a porous medium filled W-shaped cavity, in consideration of different geometrical shape parameters (undulation peak numbers at bottom wall, peak heights, side angles and heating and cooling length). Findings brought by this study provide great insights into the design and operation under various ranges of multiphysical thermofluid-flow processing phenomena.

Details

International Journal of Numerical Methods for Heat & Fluid Flow, vol. 33 no. 2
Type: Research Article
ISSN: 0961-5539

Keywords

Access Restricted. View access options
Book part
Publication date: 30 May 2022

Michael Lester and Marie dela Rama

The coronavirus (COVID-19) pandemic has arguably exposed the failures of neoliberalism and its political agenda over the past generation. The response has seen governments…

Abstract

The coronavirus (COVID-19) pandemic has arguably exposed the failures of neoliberalism and its political agenda over the past generation. The response has seen governments resurrect neo-Keynesian policies in order to address the weaknesses in the current market system and to mitigate the worst economic downturn since the Second World War (1939–1945). This chapter contextualizes the Australian perspective and the policy responses to the economic challenges posed by COVID-19. The authors contrast that with the experience of the USA and UK with whom the country shares common institutions and culture, including a generation of neoliberal economic reforms.

By closing large sections of the economy, the Australian COVID-19 response provided extensive social welfare support and bailed out several sectors and industries. Previously unacceptable and unthinkable levels of budget deficit and country debt were incurred. This systemic state intervention into the economy raises the question of whether the pandemic signals the end of the neoliberal era and its ramifications – or whether this neo-Keynesian pause was a kneejerk response to ensure and protect its legacy.

Details

Contestations in Global Civil Society
Type: Book
ISBN: 978-1-80043-701-2

Keywords

Access Restricted. View access options
Article
Publication date: 14 July 2023

Karthik Padamata and Rama Devi Vangapandu

The purpose of this study is to capture patients' and employees' perception of quality of care in the Indian private hospitals and to find the possible perceptual gaps between…

402

Abstract

Purpose

The purpose of this study is to capture patients' and employees' perception of quality of care in the Indian private hospitals and to find the possible perceptual gaps between both the groups.

Design/methodology/approach

Authors have referred to the Victorian patient satisfaction monitoring (VPSM) scale and studied the responses of 327 patients and 327 employees collected from six private Indian tertiary care hospitals. SPSS v26 software was used to conduct the data reliability test, descriptive analysis and Mann–Whitney U test.

Findings

Authors have found significant differences in perceptions of quality of care between the patients and employees in the Indian hospitals. Employees have high positive perceptions towards the provided medical care whereas the patients have less favourable perceptions for many quality indicators.

Practical implications

This study findings help the healthcare managers, practitioners and healthcare workers of the Indian hospitals to understand the perceptions of both the employees and the patients towards healthcare quality elements and help to reduce the existing perceptual gap in the process of providing quality healthcare services.

Originality/value

To the best of authors knowledge, this is one of the pioneering studies conducted in Indian healthcare industry to capture and compare the perceptions of both the employees' and the patients' perceptions of various quality of care elements. This study highlighted the existing perceptual gap between the employees and the patients on various healthcare quality elements and indicated the critical areas for improvement to provide high quality healthcare services.

Details

Benchmarking: An International Journal, vol. 31 no. 5
Type: Research Article
ISSN: 1463-5771

Keywords

Access Restricted. View access options
Article
Publication date: 25 February 2014

Diana J. Wong-MingJi, Eric H. Kessler, Shaista E. Khilji and Shanthi Gopalakrishnan

The purpose of this paper is to explore leadership styles and patterns in India, Indonesia, Pakistan, and the USA in order to contribute to a greater understanding of global…

2295

Abstract

Purpose

The purpose of this paper is to explore leadership styles and patterns in India, Indonesia, Pakistan, and the USA in order to contribute to a greater understanding of global leadership.

Design/methodology/approach

The paper uses cultural mythologies as a lens (Kessler and Wong-MingJi, 2009a) to extract the most favored leadership traits within selected countries. In doing so, the paper explores historical trajectories and core values of each country to identify their distinctive characteristics. Additionally, leadership styles of well-known business leaders in each culture are examined to develop a comparative discussion of global leadership patterns and styles.

Findings

The paper finds that leaders may share same characteristics across countries, however, their behavioral expressions tend to unfold differently within each context. The paper argues that without context, meanings embedded in cultural mythologies and behaviors often become lost. The paper concludes that a comparative analysis of selected countries reveals a more complex and rich array of cultural meanings, thus offering support to a contextual view of leadership.

Research limitations/implications

Examination of cultural mythologies on leadership makes important theoretical contributions by illustrating that cultural mythologies indeed shape the values, behaviors, and attitudes of global leaders, and provide three important functions that are identified as: cultural bridging, meaning making, and contextual nuancing.

Practical implications

Understanding comparative leadership patterns is critical in international business. The paper offers cultural mythologies as a tool for leaders who seek to cross-cultural boundaries in developing long term and high-quality productive international business relationships.

Originality/value

The value of the study lies in developing a comparative analysis of leadership patterns in three Southeast Asian countries and the USA with the help of cultural mythologies. The paper urges that scholars to move beyond quantification of cultural dimensions to a more contextualized understanding of leadership.

Details

South Asian Journal of Global Business Research, vol. 3 no. 1
Type: Research Article
ISSN: 2045-4457

Keywords

Access Restricted. View access options
Article
Publication date: 3 June 2024

Vidya Rao, Rama Devi Nandineni and Shaji Kananchira Panicker

This study aims to read ritual performances, built forms and cultural undertones of traumatic migration in the settlements of people at the periphery of mainstream history at…

76

Abstract

Purpose

This study aims to read ritual performances, built forms and cultural undertones of traumatic migration in the settlements of people at the periphery of mainstream history at Mattancherry in Kochi, India. Interactions between their culture, faith, location, ethnicity and community enterprise are explored. This study is essential in the context of negative social perceptions of internal migration and migrants.

Design/methodology/approach

The methodology is ethnography and includes interdisciplinary fieldwork of transect walks, participant observations, unstructured interviews and architectural documentation. Secondary references were community publications and scholarly journals.

Findings

Constant resilient rebuilding was possible through shared identity and community enterprise. Community temples, monastic institutions, volunteer groups and emerging high-net-worth individuals contributed to nurturing this identity. The temple rituals encouraged an egalitarian outlook. Throughout the settlement’s existence, the centrality of the temple and its religious activities remained constant. Community cohesion and endogamous practices create a cultural island distinct from the general population. Community enterprise also meant contribution to prosperity as productive citizens in the region and beyond.

Originality/value

Religion and shared history-based ethnic community enterprise for survival and prosperity postmigration are observed in this settlement. The conducive entrepreneurial atmosphere is set in its historical, cultural and religious context. This study can, therefore, provide insights for policymakers and academia about the interactions between culture, faith and history during the entrepreneurial process. The cultural context is explored as a backdrop of community enterprise posttraumatic migration, informing societal perceptions about migration and migrants.

Details

Journal of Enterprising Communities: People and Places in the Global Economy, vol. 18 no. 5
Type: Research Article
ISSN: 1750-6204

Keywords

Access Restricted. View access options
Article
Publication date: 2 August 2013

Sherliza Puat Nelson and Susela Devi

The purpose of this paper is to investigate the relationship between audit committee expertise and financial reporting quality. Since the Sarbanes Oxley Act, 2002, there has been

3472

Abstract

Purpose

The purpose of this paper is to investigate the relationship between audit committee expertise and financial reporting quality. Since the Sarbanes Oxley Act, 2002, there has been growing interest in the research concerning audit committee expertise, especially as the Security Exchange Commission requires firms to identify their audit committee financial experts.

Design/methodology/approach

Based on two theories, the resource dependence theory and agency theory, the study examines the association of audit committee experts with financial reporting quality, proxied by earnings management. Samples involved 2008 financial data of 300 firms that were ranked by highest market capitalisation. In total, four types of expertise are developed based on academic qualification, professional qualification and work experience.

Findings

Presence of non‐accounting experts and accounting experts is significant to reduce the magnitude of earnings management. Other than that, leverage and firms size are also found to be significant.

Originality/value

The findings show RDT is prevalent in accounting or auditing domain, where there is evidence showing directors bridge firms with external resources such as expertise and experience. Subsequently, contribute to the mainstream accounting literature that the resource dependence theory is also vital in explaining situations where directors' expertise and knowledge are involved.

Details

Corporate Governance: The international journal of business in society, vol. 13 no. 4
Type: Research Article
ISSN: 1472-0701

Keywords

1 – 10 of 274
Per page
102050