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Article
Publication date: 6 October 2020

Eric Liguori, Jeff Muldoon and Josh Bendickson

Experiential education is key if the authors as scholar-educators are to empower the next generation of students to recognize opportunities, exploit them and succeed in…

Abstract

Purpose

Experiential education is key if the authors as scholar-educators are to empower the next generation of students to recognize opportunities, exploit them and succeed in entrepreneurship. Experiences facilitate the bridge between theory and practice; experiencing something serves as the linking process between action and thought. Capitalizing on technological advances of the last two decades, this paper depicts how film can be (and why it should be) incorporated into entrepreneurship classrooms.

Design/methodology/approach

The authors analyze the learning literature, broadly defined, to assess and articulate the experiential nature of film. More specifically, this paper establishes a framework for film as an experiential pedagogical approach, offering theoretical connections and best practice recommendations. In doing so, this paper assesses two feature films and provide educators with a guide for their use in the classroom.

Findings

This paper establishes a framework for film as an experiential pedagogical approach, offering theoretical connections and best practice recommendations. It concludes with two actionable case examples, broad enough they are deployable in almost any entrepreneurship classroom, assuming English is the primary language.

Originality/value

This paper brings to life a concept some have long assumed is effective, but the literature often neglects: the use of film as an experiential medium. In doing so, two new case examples are developed and available for immediate deployment into classrooms.

Details

Journal of Small Business and Enterprise Development, vol. 27 no. 6
Type: Research Article
ISSN: 1462-6004

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Article
Publication date: 28 January 2014

Qiao-Xing Li, Sifeng Liu and Nai-Ang Wang

This paper attempts to establish the general formula for computing the inverse of grey matrix, and the results are applied to solve grey linear programming. The inverse of…

Abstract

Purpose

This paper attempts to establish the general formula for computing the inverse of grey matrix, and the results are applied to solve grey linear programming. The inverse of a grey matrix and grey linear programming plays an important role in establishing a grey computational system.

Design/methodology/approach

Starting from the fact that missing information often appears in complex systems, and therefore that true values of elements are uncertain when the authors construct a matrix, as well as calculate its inverse. However, the authors can get their ranges, which are called the number-covered sets, by using grey computational rules. How to get the matrix-covered set of inverse grey matrix became a typical approach. In this paper, grey linear programming was explained in detail, for the point of grey meaning and the methodology to calculate the inverse grey matrix can successfully solve grey linear programming.

Findings

The results show that the ranges of grey value of inverse grey matrix and grey linear programming can be obtained by using the computational rules.

Practical implications

Because the matrix and the linear programming have been widely used in many fields such as system controlling, economic analysis and social management, and the missing information is a general phenomenon for complex systems, grey matrix and grey linear programming may have great potential application in real world. The methodology realizes the feasibility to control the complex system under uncertain situations.

Originality/value

The paper successfully obtained the ranges of uncertain inverse matrix and linear programming by using grey system theory, when the elements of matrix and the coefficients of linear programming are intervals and the results enrich the contents of grey mathematics.

Details

Grey Systems: Theory and Application, vol. 4 no. 1
Type: Research Article
ISSN: 2043-9377

Keywords

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Book part
Publication date: 11 June 2014

Abstract

Details

Child Labour in Global Society
Type: Book
ISBN: 978-1-78350-780-1

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Article
Publication date: 26 October 2012

Qiao‐Xing Li, Nai‐Ang Wang and Shi‐Cheng Chen

This paper attempts to establish the conceptional and computational systems of grey determinant and apply it to solve n grey equations with n grey linear equations, which…

Abstract

Purpose

This paper attempts to establish the conceptional and computational systems of grey determinant and apply it to solve n grey equations with n grey linear equations, which can be viewed as the important parts of grey mathematics.

Design/methodology/approach

Starting from the fact that missing information often appears in complex systems, the true values of elements when constructing a determinant and of coefficients when solving n equations with n linear equations cannot be obtained, so they are uncertain. However, their ranges can be obtained by using correct investigation methods. The uncertain elements and coefficients are grey and their ranges are number‐covered sets. On the basis of the results of Li and Wang, the paper systematically proposes the definition system of grey determinant and n grey linear equations, and utilizes the computational rules of grey determinant to solve the n grey equations with n grey linear equations. Some numerical examples are computed to illustrate the results in this paper.

Findings

The results show that the ranges of grey value of grey determinant and grey solutions of grey equations with n grey linear equations can be obtained by using computational rules proposed.

Practical implications

Because the determinant and the linear equations have been widely used in many fields such as system controlling, economic analysis and social management, and the missing information is a general phenomenon for complex systems, grey determinant and grey linear equations may have great potential application in the real world. The method realizes the feasibility of system analysis under uncertain situations.

Originality/value

The paper succeeds in providing systematic results of computation of uncertain determinant and n linear equations by using grey systems theory and enriches the contents of grey mathematics.

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Article
Publication date: 25 July 2019

Yasuhito Takahashi, Koji Fujiwara, Takeshi Iwashita and Hiroshi Nakashima

This paper aims to propose a parallel-in-space-time finite-element method (FEM) for transient motor starting analyses. Although the domain decomposition method (DDM) is…

Abstract

Purpose

This paper aims to propose a parallel-in-space-time finite-element method (FEM) for transient motor starting analyses. Although the domain decomposition method (DDM) is suitable for solving large-scale problems and the parallel-in-time (PinT) integration method such as Parareal and time domain parallel FEM (TDPFEM) is effective for problems with a large number of time steps, their parallel performances get saturated as the number of processes increases. To overcome the difficulty, the hybrid approach in which both the DDM and PinT integration methods are used is investigated in a highly parallel computing environment.

Design/methodology/approach

First, the parallel performances of the DDM, Parareal and TDPFEM were compared because the scalability of these methods in highly parallel computation has not been deeply discussed. Then, the combination of the DDM and Parareal was investigated as a parallel-in-space-time FEM. The effectiveness of the developed method was demonstrated in transient starting analyses of induction motors.

Findings

The combination of Parareal with the DDM can improve the parallel performance in the case where the parallel performance of the DDM, TDPFEM or Parareal is saturated in highly parallel computation. In the case where the number of unknowns is large and the number of available processes is limited, the use of DDM is the most effective from the standpoint of computational cost.

Originality/value

This paper newly develops the parallel-in-space-time FEM and demonstrates its effectiveness in nonlinear magnetoquasistatic field analyses of electric machines. This finding is significantly important because a new direction of parallel computing techniques and great potential for its further development are clarified.

Details

COMPEL - The international journal for computation and mathematics in electrical and electronic engineering , vol. 38 no. 5
Type: Research Article
ISSN: 0332-1649

Keywords

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Article
Publication date: 29 October 2019

Mariantonietta Fiore, Leonardo Salvatore Alaimo and Nino Chkhartishvil

Wine, fruits, vegetables and whole grains are the main products of a healthy diet. The purpose of this paper is to scrutinize the existence of an interesting and evocative…

Abstract

Purpose

Wine, fruits, vegetables and whole grains are the main products of a healthy diet. The purpose of this paper is to scrutinize the existence of an interesting and evocative bond among moderate intake of wine, health and well-being.

Design/methodology/approach

By means of a fuzzy cluster analysis, the authors try to investigate the existence of groups of regions similar in wine consumption, subjective well-being, health and social relations. The latter are expressed through composite indicators, built and developed by Istat within the Italy ESW project’s activities (equitable and sustainable well-being). The analysis also investigates how this link has evolved over time. Data are related to refer to the situations in 2010 and 2017 in 21 regions of Italy.

Findings

Results obtained in 2010 seem to confirm the hypothesis of the existence of a link among moderate wine consumption, hedonism well-being and health, and in addition, findings highlight the so-called North‒South gap, that is the strong differences and economic issues among the different areas of the country. Then, outcomes obtained for 2017 appear in line with 2010 results.

Originality/value

Several authors from medicine, economics and chemistry domain strongly suggest and demonstrate that regular and moderate intake of wine reduces the incidence of heart disease, diabetes mellitus and hormonal problems, and correlatively increases longevity. In this work, the authors develop further research step including the aspects related to personal well-being and social relations under the umbrella of a hedonism approach. Finally, results highlight the existence of an amazing tie among moderate intake of wine consumption, well-being and health.

Details

British Food Journal, vol. 122 no. 8
Type: Research Article
ISSN: 0007-070X

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Article
Publication date: 9 November 2015

Bradford Lee Eden

Abstract

Details

Reference Reviews, vol. 29 no. 8
Type: Research Article
ISSN: 0950-4125

Keywords

Content available
Article
Publication date: 30 October 2020

Jeffrey Glenn, Claire Chaumont and Pablo Villalobos Dintrans

The purpose is to understand the role of public leadership during the COVID-19 pandemic and advocate for a more active role of public health professionals in helping…

Abstract

Purpose

The purpose is to understand the role of public leadership during the COVID-19 pandemic and advocate for a more active role of public health professionals in helping manage the crisis.

Design/methodology/approach

The authors use the framework developed by Boin et al. (2005) on crisis leadership. The authors focus on three of the core tasks – sense-making, decision-making and meaning-making – that are relevant to explain the role of public leaders during the ongoing crisis. The authors draw from the experience of three countries – Chile, France and the United States – to illustrate how these tasks were exercised with concrete examples.

Findings

Several examples of the way in which public leaders reacted to the crisis are found in the selected countries. Countries show different responses to the way they assessed and reacted to the COVID-19 as a crisis, the decisions taken to prevent infections and mitigate consequences, and the way they communicate information to the population.

Practical implications

A better understanding public leadership as a key for better crisis management, particularly for designing policy responses to public health crises. Public health leaders need to assume a more active role in the crisis management process, which also implies the emergence of a new class of public health leaders and a more prominent role for public health in the public eye.

Originality/value

The use of examples from three different countries, as well as the focus on the core leadership tasks during an ongoing crisis help not only assessing the crisis management but also extracting lessons for the coming months, as well as future public health emergencies. The three authors have a first-hand experience on the evolution of the crisis in their countries and the environment, since they are currently living and working in public health in Chile, France and the United States.

Details

International Journal of Public Leadership, vol. 17 no. 1
Type: Research Article
ISSN: 2056-4929

Keywords

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Article
Publication date: 4 November 2020

Ayda Montaser Koohsari and Shahin Heidari

The purpose of this paper is to determine the approximate window-to-wall ratio (WWR), window width-to-height ratio (WHR) and sill level for a room in Rasht–Gilan province…

Abstract

Purpose

The purpose of this paper is to determine the approximate window-to-wall ratio (WWR), window width-to-height ratio (WHR) and sill level for a room in Rasht–Gilan province and to present an optimal window in each of the WWR ranges providing the minimum energy consumption by integrating artificial lighting and thermal analyses, whilst maintaining internal comfort conditions using dynamic evaluation.

Design/methodology/approach

The process of modelling has four main steps: 1 – defining the building's features and requirements, 2 – validating input weather file data by on-site measurement, 3 – determining input parameters for the lighting and thermal analysis and 4 – clarifying variable parameters and fitness function for the optimization algorithm. Also, the survey study is performed in a daylit office room, in which 30 employees are employed to answer the questions in three different times of a day. In this process, the impact of daylight on their visual comfort is surveyed in 1,350 different illuminance levels which are manually recorded.

Findings

The range of useful daylight illuminance (UDI) values is determined as 200–1,000 lux. The optimum range of WWRs in the case study is 15%–25%. Also, due to the appropriate window height, electric lighting could be decreased by 40%.

Originality/value

Thermal and lighting performance in buildings is the relation of facade characteristics to environmental sustainability. Recent studies focussed on optimizing WWR and window characteristics considering thermal comfort and energy analyses. However, architects need freedom for designing façade and making decisions in their first sketches. Thus a guideline for optimum window conditions in each WWR is required. Also, considering occupants' behaviour in practical buildings, the visual comfort investigation is a gap in WWR optimization.

Details

Built Environment Project and Asset Management, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 2044-124X

Keywords

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Article
Publication date: 4 January 2016

Mehdi Jamei and H Ghafouri

The purpose of this paper is to present a novel sequential implicit discontinuous Galerkin (DG) method for two-phase incompressible flow in porous media. It is based on…

Abstract

Purpose

The purpose of this paper is to present a novel sequential implicit discontinuous Galerkin (DG) method for two-phase incompressible flow in porous media. It is based on the wetting phase pressure-saturation formulation with Robin boundary condition (Klieber and Riviere, 2006) using H(div) velocity projection.

Design/methodology/approach

The local mass conservation and continuity of normal component of velocity across elements interfaces are enforced by a simple H(div) velocity projection in lowest order Raviart-Thomas (RT0) space. As further improvements, the authors use the weighted averages and the scaled penalties in spatial DG discretization. Moreover, the Chavent-Jaffre slope limiter, as a consistent non-oscillatory limiter, is used for saturation values to avoid the spurious oscillations.

Findings

The proposed model is verified by a pseudo 1D Buckley-Leverett problem in homogeneous media. Two homogeneous and heterogeneous quarter five-spot benchmark problems and a random permeable medium are used to show the accuracy of the method at capturing the sharp front and illustrate the impact of proposed improvements.

Research limitations/implications

The work illustrates incompressible two-phase flow behavior and the capillary pressure heterogeneity between different geological layers is assumed to be negligible.

Practical implications

The proposed model can efficiently be used for modeling of two-phase flow in secondary recovery of petroleum reservoirs and tracing the immiscible contamination in porous media.

Originality/value

The authors present an efficient sequential DG method for immiscible incompressible two-phase flow in porous media with improved performance for detection of sharp frontal interfaces and discontinuities.

Details

International Journal of Numerical Methods for Heat & Fluid Flow, vol. 26 no. 1
Type: Research Article
ISSN: 0961-5539

Keywords

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