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Article
Publication date: 7 August 2017

Hector Barrios-Piña, Stéphane Viazzo and Claude Rey

The purpose of this paper is to show a thermodynamic analysis to determine the contribution of each term of the total energy balance.

Abstract

Purpose

The purpose of this paper is to show a thermodynamic analysis to determine the contribution of each term of the total energy balance.

Design/methodology/approach

The thermodynamic analysis comprises a number of numerical simulations where some terms, typically ignored by the commonly used approximations, are removed from the total energy equation to quantify the effects in the flow and heat transfer fields. The case study is the differentially heated square cavity flow, in which the effects of work done by the pressure forces contribute significantly to the energy balance. Because local magnitudes are computed here for discussion, the dimensional form of the governing equations is preferred and a numerical model without any restrictive approximation about the role of the pressure is used.

Findings

The results show that the work of gravity forces term is in perfect balance with the work of pressure forces term, and thus, ignoring the contribution of one of them yields an incorrect solution. In addition, it is shown that the assumption of zero divergence of the Boussinesq approximation can be erroneous, even for a natural convection flow case where the temperature difference is very small.

Research limitations/implications

As the flow and heat transfer governing equations are complex, simplifying assumptions are generally used; that is, the Boussinesq and low Mach number approximations. These assumptions are systematically adopted without any validation process and without considering that they modify the physical meaning of one or more of the thermodynamic quantities, particularly the pressure. This fact results in inconsistencies of the different forms of energy.

Originality/value

This is the first time that the terms of the total energy balance are quantified in such a way, in a differentially heated square cavity flow, which is a case study addressed by several authors.

Details

International Journal of Numerical Methods for Heat & Fluid Flow, vol. 27 no. 8
Type: Research Article
ISSN: 0961-5539

Keywords

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Book part
Publication date: 27 September 2011

Narjess Boubakri, Jean-Claude Cosset and Nabil Samir

Purpose – Run a comparative analysis between investments of sovereign wealth funds (SWFs) and mutual funds, focusing on firm-level, country-level, and institutional…

Abstract

Purpose – Run a comparative analysis between investments of sovereign wealth funds (SWFs) and mutual funds, focusing on firm-level, country-level, and institutional variables.

Methodology/approach – We use a hand-collected sample of 1,845 acquisitions around the world over the last 25 years (251 for SWFs and 1,594 for mutual funds). We then run univariate parametric and nonparametric tests to assess the differences in the investments of both subsamples.

Findings – We review the literature on the determinants of SWFs' investment decisions. Our analysis adds to the scarce available literature on the investment decisions of SWFs and their comparison with other institutional investors. Our results show that, compared to mutual funds, SWFs indeed exhibit different preferences: for instance, SWFs prefer to acquire stakes in larger, less liquid companies which are financially distressed but which also have a higher level of growth opportunities. They also prefer less innovative firms with more concentrated ownership, which are located in less developed but geographically closer countries with whom they do not necessarily share cultural and religious backgrounds.

Social implications – Our results are important for practitioners and firms seeking to attract a given type of institutional investment. They also add insights to the debate on the “hidden” political objectives behind SWF investments in the Western world.

Originality/value of paper – This is the first attempt to empirically assess the differences in the investment choices of SWFs and mutual funds.

Details

Institutional Investors in Global Capital Markets
Type: Book
ISBN: 978-1-78052-243-2

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Article
Publication date: 1 October 2006

Jean‐Guy Degos and Richard Mattessich

This paper seeks to offer a survey of accounting publications and research in the French literature from 1950 to the end of the twentieth century.

Abstract

Purpose

This paper seeks to offer a survey of accounting publications and research in the French literature from 1950 to the end of the twentieth century.

Design/methodology/approach

The methodology is that of literary research, review and critique.

Findings

Finds that over the period mentioned different aspects of accounting research have been examined in the literature – academic, social, matrix, events, historical. The leading researchers in these fields are covered in detail.

Originality/value

Succeeds in offering problems the most comprehensive survey to date of the French literature on accounting and related research during the period under review.

Details

Review of Accounting and Finance, vol. 5 no. 4
Type: Research Article
ISSN: 1475-7702

Keywords

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Article
Publication date: 1 April 2003

Georgios I. Zekos

Aim of the present monograph is the economic analysis of the role of MNEs regarding globalisation and digital economy and in parallel there is a reference and examination…

Abstract

Aim of the present monograph is the economic analysis of the role of MNEs regarding globalisation and digital economy and in parallel there is a reference and examination of some legal aspects concerning MNEs, cyberspace and e‐commerce as the means of expression of the digital economy. The whole effort of the author is focused on the examination of various aspects of MNEs and their impact upon globalisation and vice versa and how and if we are moving towards a global digital economy.

Details

Managerial Law, vol. 45 no. 1/2
Type: Research Article
ISSN: 0309-0558

Keywords

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Article
Publication date: 1 October 2005

Georgios I. Zekos

Globalisation is generally defined as the “denationalisation of clusters of political, economic, and social activities” that destabilize the ability of the sovereign State…

Abstract

Globalisation is generally defined as the “denationalisation of clusters of political, economic, and social activities” that destabilize the ability of the sovereign State to control activities on its territory, due to the rising need to find solutions for universal problems, like the pollution of the environment, on an international level. Globalisation is a complex, forceful legal and social process that take place within an integrated whole with out regard to geographical boundaries. Globalisation thus differs from international activities, which arise between and among States, and it differs from multinational activities that occur in more than one nation‐State. This does not mean that countries are not involved in the sociolegal dynamics that those transboundary process trigger. In a sense, the movements triggered by global processes promote greater economic interdependence among countries. Globalisation can be traced back to the depression preceding World War II and globalisation at that time included spreading of the capitalist economic system as a means of getting access to extended markets. The first step was to create sufficient export surplus to maintain full employment in the capitalist world and secondly establishing a globalized economy where the planet would be united in peace and wealth. The idea of interdependence among quite separate and distinct countries is a very important part of talks on globalisation and a significant side of today’s global political economy.

Details

Managerial Law, vol. 47 no. 5
Type: Research Article
ISSN: 0309-0558

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Article
Publication date: 21 September 2015

Mojtaba Maghrebi, Claude Sammut and S. Travis Waller

The purpose of this paper is to study the implementation of machine learning (ML) techniques in order to automatically measure the feasibility of performing ready mixed…

Abstract

Purpose

The purpose of this paper is to study the implementation of machine learning (ML) techniques in order to automatically measure the feasibility of performing ready mixed concrete (RMC) dispatching jobs.

Design/methodology/approach

Six ML techniques were selected and tested on data that was extracted from a developed simulation model and answered by a human expert.

Findings

The results show that the performance of most of selected algorithms were the same and achieved an accuracy of around 80 per cent in terms of accuracy for the examined cases.

Practical implications

This approach can be applied in practice to match experts’ decisions.

Originality/value

In this paper the feasibility of handling complex concrete delivery problems by ML techniques is studied. Currently, most of the concrete mixing process is done by machines. However, RMC dispatching still relies on human resources to complete many tasks. In this paper the authors are addressing to reconstruct experts’ decisions as only practical solution.

Details

Engineering, Construction and Architectural Management, vol. 22 no. 5
Type: Research Article
ISSN: 0969-9988

Keywords

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Book part
Publication date: 16 July 2014

Samuel R. Hodge and Martha James-Hassan

In this chapter, we discuss teaching physical education to Black male students in urban schools. We present a brief account of the history and status of physical education…

Abstract

In this chapter, we discuss teaching physical education to Black male students in urban schools. We present a brief account of the history and status of physical education and specifically examine school physical education, particularly for Black male students in urban geographical contexts. We also offer strategies to counter the narrative of Black male school failure and present strategies for addressing the needs of urban teachers and Black male students.

Details

African American Male Students in PreK-12 Schools: Informing Research, Policy, and Practice
Type: Book
ISBN: 978-1-78350-783-2

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Book part
Publication date: 27 September 2011

Gohar G. Stepanyan

Purpose – Examine the role of institutional investors in accelerating the development of capital markets and economies abroad, the determinants of their investment, both…

Abstract

Purpose – Examine the role of institutional investors in accelerating the development of capital markets and economies abroad, the determinants of their investment, both in the domestic and foreign markets, and their importance in promoting good corporate governance practices worldwide and facilitating increased financial integration.

Methodology/approach – Review and synthesize recent academic literature (1970–2011) on the process of international financial integration and the role of foreign institutional investors in the increasingly global financial markets.

Findings – Despite the concern that short-term flow of international capital can be destructive to the emerging and developing market economies, academic evidence on a destabilizing effect of foreign investment activity is limited. Institutional investors’ systematic preference for stocks of large, well-known, globally visible foreign firms can explain the presence of a home bias in international portfolio investment.

Research limitations – Given the breadth of the two literature streams, only representative studies (over 45 published works) are summarized.

Social implications – Regulators of emerging markets should first improve domestic institutions, governance, and macroeconomic fundamentals, and then deregulate domestic financial and capital markets to avoid economic and financial crises in the initial stages of liberalization reforms.

Originality/value of paper – A useful source of information for graduate students, academics, and practitioners on the importance of foreign institutional investors.

Details

Institutional Investors in Global Capital Markets
Type: Book
ISBN: 978-1-78052-243-2

Keywords

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Book part
Publication date: 3 June 2021

Kléber Ghimire

Abstract

Details

Social Sciences: A Dying Fire
Type: Book
ISBN: 978-1-80117-041-3

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Book part
Publication date: 30 December 2013

Alessia Mariotti

This chapter discusses the main research interests and outputs in the various branches of geography that have influenced the study of tourism from a geographical…

Abstract

This chapter discusses the main research interests and outputs in the various branches of geography that have influenced the study of tourism from a geographical perspective. It argues that the idiographic tradition has been transversal throughout, leading to the growing interest for tourism within the geography academic community in the last 10 years. There is a focus on the birth of specific research groups, mainly related to a constellation of new university curricula on tourism and—with few exceptions of territorial tradition—to an intermittent availability of public research funds. The chapter concludes with a more general picture of the place of tourism within the geography discipline in Italy and of evolving trends in terms of research results, dissemination, and evaluation.

Details

Geographies of Tourism
Type: Book
ISBN: 978-1-78190-212-7

Keywords

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