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Article
Publication date: 20 November 2007

J.M.F. Trindade and J.C.F. Pereira

This paper aims to focus on the temporal and spatial fourth‐order finite volume discretization of the incompressible form of the Navier‐Stokes equations on structured uniform…

Abstract

Purpose

This paper aims to focus on the temporal and spatial fourth‐order finite volume discretization of the incompressible form of the Navier‐Stokes equations on structured uniform grids. The main purpose of the paper is to assess the accuracy enhancement with the inclusion of a high‐order reconstruction of the point‐wise velocity field on a fourth‐order accurate numerical scheme for the solution of the unsteady incompressible Navier‐Stokes equations.

Design/methodology/approach

The present finite volume method uses a fractional time‐step for decoupling velocity and pressure. A Runge‐Kutta integration scheme is implemented for integrating the momentum equation along with a polynomial interpolation and Simpson formula for space‐integration. The formulation is based on step‐by‐step de‐averaging process applied to the velocity field.

Findings

The reconstruction of the point‐wise velocity field on a higher‐order basis is essential to obtain solutions that effectively stand for a fourth‐order approximation of the point‐wise one. Results are provided for the Taylor vortex decay problem and for co‐ and counter‐rotating vortices to assess the increase in accuracy promoted by the inclusion of the high‐order de‐averaging procedure.

Research limitations/implications

High‐order reconstruction of the point‐wise velocity field should be considered in high‐order finite volume methods for the solution of the unsteady incompressible form of the Navier‐Stokes equations on structured grids.

Practical implications

The inclusion of a high‐order reconstruction of the point‐wise velocity field is a simple and effective method of enhancing the accuracy of a finite volume code for the computational fluid dynamics analysis.

Originality/value

The paper develops an improved version of a fourth‐order accurate finite volume projection method with the inclusion of a high‐order reconstruction step.

Details

Engineering Computations, vol. 24 no. 8
Type: Research Article
ISSN: 0264-4401

Keywords

Article
Publication date: 4 October 2017

M.R.M. Huzaifah, S.M. Sapuan, Z. Leman, M.R. Ishak and M.A. Maleque

The purpose of this paper is to present the review of natural fibre composites as well as a specific type of fibre, i.e., sugar palm fibre and its composites.

Abstract

Purpose

The purpose of this paper is to present the review of natural fibre composites as well as a specific type of fibre, i.e., sugar palm fibre and its composites.

Design/methodology/approach

The approach of this review paper is to present previous work on natural fibres and their composites. Then a review of several important aspects such as history, origin, botanic description, distribution, application and characterisation of sugar palm tree, and its fibre is presented. Finally a review of properties and characterisation of sugar palm composites is presented.

Findings

Findings of this review include the potential application of natural fibres and their composites for engineering application, the use of sugar palm and its fibres, as well as the suitability of sugar palm composites in engineering application after conducting review of their performance and characterisation.

Originality/value

The value of this review is to highlight the potential of natural fibres, natural fibre composites, sugar palm, sugar palm fibres and sugar palm composites as materials for engineering applications.

Details

Multidiscipline Modeling in Materials and Structures, vol. 13 no. 4
Type: Research Article
ISSN: 1573-6105

Keywords

Open Access
Book part
Publication date: 29 November 2023

Abstract

Details

The Emerald Handbook of Research Management and Administration Around the World
Type: Book
ISBN: 978-1-80382-701-8

Open Access
Article
Publication date: 2 August 2021

Thanh Cong Nguyen, Hang Dieu Nguyen, Hoa Thu Le and Shinji Kaneko

This purpose of this paper is to understand residents’ choice of preferred measures and their willingness-to-pay (WTP) for the measures to improve the air quality of Hanoi city.

2232

Abstract

Purpose

This purpose of this paper is to understand residents’ choice of preferred measures and their willingness-to-pay (WTP) for the measures to improve the air quality of Hanoi city.

Design/methodology/approach

Questionnaire surveys were conducted to collect the opinions of 212 household representatives living in Hanoi City. The survey tools were tested and adjusted through an online survey with 191 responses. Multivariate probit and linear regression models were used to identify determinants of respondents’ choices of measures and their WTP.

Findings

Respondents expressed their strong preferences for three measures for air quality improvements, including: (1) increase of green spaces; (2) use of less polluting fuels; (3) expansion of public transportation. The mean WTP for the implementation of those measures was estimated at about 148,000–282,000 Vietnamese dong, equivalent to 0.09–0.16% of household income. The respondents’ choices appear to be consistent with their characteristics and needs, such as financial affordability, time on roads and their perceived impacts of air pollution. The WTP estimates increase with perception of air pollution impacts, time on roads, education and income; but are lower for older people.

Practical implication

Increase of green spaces can be the measure to which policy makers should pay more attention. The match-up of residents needs and well-informed plans will be an important key to success.

Originality/value

This appears to be the first attempt to test the validity of public opinions on choices of measures for improving urban air quality in Vietnam. Our WTP estimates also contribute to the database on the values of improved air quality in the developing world.

Details

Journal of Economics and Development, vol. 24 no. 3
Type: Research Article
ISSN: 1859-0020

Keywords

Open Access
Book part
Publication date: 29 November 2023

Susi Poli, Simon Kerridge, Patrice Ajai-Ajagbe and Deborah Zornes

This chapter explores the results of an international survey (RAAAP-2) to provide global insight into research management and administration (RMA) as a relatively new field of…

Abstract

This chapter explores the results of an international survey (RAAAP-2) to provide global insight into research management and administration (RMA) as a relatively new field of investigation within the area of higher education management (HEM). Building on that extensive survey, the purpose of this chapter is to investigate qualitatively how and why people become and remain research managers and administrators, focussing primarily on their skills, roles, and career paths.

Findings from the analysis confirm that a career in RMA is rarely an intentional choice and can be described as labyrinthine, which could be even compared and contrasted with a concertine academic career described by Whitchurch et al. (2021). While conclusions confirm the gender implications of the profession, which is overall highly ‘female’; further conclusion sheds light on RMAs across regions and suggests how this varied ecosystem could even undermine the recognition of RMA as a profession.

Details

The Emerald Handbook of Research Management and Administration Around the World
Type: Book
ISBN: 978-1-80382-701-8

Keywords

Book part
Publication date: 20 January 2021

Ana Mouraz and Ariana Cosme

The aim of this chapter is twofold: first, it will discuss the roots and the aims of the curriculum reform launched in Portugal in 2017, suggesting that it shows the influence of…

Abstract

The aim of this chapter is twofold: first, it will discuss the roots and the aims of the curriculum reform launched in Portugal in 2017, suggesting that it shows the influence of international policy borrowing. Secondly, it aims to present and to discuss the trends that this reform is putting in place, highlighting some successful practices as well some misconceptions and controversial practices. To accomplish such aims, it follows the analytical framework that inspires this book, namely the approach that understands curriculum making as a dynamic process of interactions between different layers of the system, emphasizing the meso and the micro layers of curriculum decision-making. The focus on the experimental period that this chapter narrates is also an opportunity to analyse dynamics among the layers of curriculum making.

Details

Curriculum Making in Europe: Policy and Practice within and Across Diverse Contexts
Type: Book
ISBN: 978-1-83867-735-0

Keywords

Book part
Publication date: 13 May 2021

Dina Sebastião and Sara Dias-Trindade

This chapter theorizes a proposal for applying the study of Brexit as a pedagogical strategy in an European Studies (ES) bachelor program, as a means to activate theoretical…

Abstract

This chapter theorizes a proposal for applying the study of Brexit as a pedagogical strategy in an European Studies (ES) bachelor program, as a means to activate theoretical knowledge for different disciplinary and thematic fields of study about the European Union. The proposal uses the problem-based learning (PBL) approach as a pedagogical methodology and the bachelor of ES at the Faculty of Arts and Humanities at the University of Coimbra as a case study to rehearse teaching innovation. It is based on a theoretical part, conciliating PBL as a pedagogical tool in social sciences and humanities with the exceptionalism of Brexit within the European integration theories and the study of European policies to activate and question prior scientific knowledge, and on a survey to bachelor’s students and alumni on the pertinence of PBL and of Brexit as an empirical element for scientific knowledge in ES. As a result, specific proposals to use Brexit in PBL experiences in different disciplinary areas of ES are made, paving the way for a range of teaching and learning opportunities and challenges released by Brexit to make progress in the ES pedagogical framework.

Details

Teaching the EU: Fostering Knowledge and Understanding in the Brexit Age
Type: Book
ISBN: 978-1-80043-274-1

Keywords

Book part
Publication date: 25 October 2014

Douglas Dow, Lars Håkanson and Björn Ambos

This chapter bridges the gap between two distinct approaches to the concept of psychic distance – measuring it in terms of people’s perceptions of distance or in terms of…

Abstract

Purpose

This chapter bridges the gap between two distinct approaches to the concept of psychic distance – measuring it in terms of people’s perceptions of distance or in terms of exogenous national-level differences. The two approaches are reconciled in a “refined and integrative” definition of the concept, which is tested empirically using a mediating model.

Methodology

Structural equation modeling is used on a bilateral sample of 25 countries to test whether perceptions of psychic distance mediate the relationships between national-level differences and bilateral trade and investment.

Findings

By testing for alternative direct paths, the chapter confirms that for the main forms of national-level differences, culture, socioeconomic development, language, and religion, psychic distance fully mediates their relationships with both trade flows and investment patterns. However, for geographic distance, while the relationship is fully mediated for investment, it is only partially mediated for exports. Two asymmetric “distance-bridging” factors are also found to be significant antecedents of psychic distance.

Originality and implications

This chapter is the first to empirically demonstrate the mediating relationship between exogenous national-level differences and perceptions of psychic distance, and thus, provides new insights into the debate over which measurement approach is more appropriate. Perceptions of psychic distance, even if measured by expert panels rather than the actual decision-makers, fully capture the impact of national-level differences on trade and FDI flows; however, if such measures of perceptions are not available, a simple selection of four national-level differences will still capture 80% of the same effect.

Details

Multinational Enterprises, Markets and Institutional Diversity
Type: Book
ISBN: 978-1-78441-421-4

Keywords

Book part
Publication date: 9 June 2023

Martha Prata-Linhares, Helena Amaral da Fontoura and Maria Alzira de Almeida Pimenta

There is an urgency to build a critical view of information and communication technologies in society and education in order to harness their pedagogical potential. Generally, the…

Abstract

There is an urgency to build a critical view of information and communication technologies in society and education in order to harness their pedagogical potential. Generally, the Covid-19 pandemic demanded transformation, which is one of the possibilities in times of crisis. Despite the pandemic exposing digital exclusion in many parts of the planet, digital technologies concurrently have overcome, at least in part, social isolation through the provision of remote activities. The functionality of technologies motivated the question that guides the present investigation: how does the use of technologies before, during, and after the pandemic period appear in the products of the ISATT academic community? The objective is to come to know the contribution of ISATT and the degree to which its input is current and relevant. To meet our goal, we conducted an exploratory study gathering data by means of Google Form questionnaire. ISATT members invited to answer the questionnaire were also participants in the survey. Our intent is to map and describe the relationship between technology and creative teaching and categorize the different approaches used. Our analysis will allow ISATT community members to evaluate their interests, foci, trends, and contributions.

Details

Teacher Education in the Wake of Covid-19
Type: Book
ISBN: 978-1-80455-462-3

Keywords

Book part
Publication date: 8 August 2022

Maksim Godovykh

The most commonly described components of customer experience include cognitive and affective aspects. However, the subjective self-reported methods traditionally applied in…

Abstract

The most commonly described components of customer experience include cognitive and affective aspects. However, the subjective self-reported methods traditionally applied in tourism research cannot fully represent the instant, dynamic, and affective nature of customer experience. Therefore, there is a need for moment-based approaches and longitudinal methods in tourism research. The chapter provides a selective review of measures that can be used to assess the affective aspects of customer experience. Taking into account the advantages and limitations of each method, the integration of self-reported scales, moment-based psychophysiological techniques, and longitudinal methods should be considered as the best approach to measuring affective components of customer experience in tourism. This holistic interdisciplinary approach will help researchers and tourism practitioners understand the relationship between affective and cognitive components of tourists' pre-visit, onsite, and post-visit experience, as well as evaluate the effectiveness of marketing campaigns, identify weak points of tourists' customer journey, and maximize total travel experience.

Details

Contemporary Approaches Studying Customer Experience in Tourism Research
Type: Book
ISBN: 978-1-80117-632-3

Keywords

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