William Thollet, Guillaume Dufour, Xavier Carbonneau and Florian Blanc
The purpose of this paper is to explore a methodology that allows to represent turbomachinery rotating parts by replacing the blades with a body force field. The objective is to…
Abstract
Purpose
The purpose of this paper is to explore a methodology that allows to represent turbomachinery rotating parts by replacing the blades with a body force field. The objective is to capture interactions between a fan and an air intake at reduced cost, as compared to full annulus unsteady computations.
Design/methodology/approach
The blade effects on the flow are taken into account by adding source terms to the Navier-Stokes equations. These source terms give the proper amount of flow turning, entropy, and blockage to the flow. Two different approaches are compared: the source terms can be computed using an analytic model, or they can directly be extracted from RANS computations with the blade’s geometry.
Findings
The methodology is first applied to an isolated rotor test case, which allows to show that blockage effects have a strong impact on the performance of the rotor. It is also found that the analytic body force model underestimates the mass flow in the blade row for choked conditions. Finally, the body force approach is used to capture the coupling between a fan and an air intake at high angle of attacks. A comparison with full annulus unsteady computations shows that the model adequately captures the potential effects of the fan on the air intake.
Originality/value
To the authors’ knowledge, it is the first time that the analytic model used in this paper is combined with the blockage source terms. Furthermore, the capability of the model to deal with flows in choked conditions was never assessed.
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Orlando Chirinos, Georges Habchi, Magali Pralus, Florian Magnani and Zahir Messaoudene
The purpose of this paper is to shed light on the studies regarding the influential elements that contribute to the sustainability of continuous improvement (CI) programs. It aims…
Abstract
Purpose
The purpose of this paper is to shed light on the studies regarding the influential elements that contribute to the sustainability of continuous improvement (CI) programs. It aims to define the notion of sustainability and to identify and explore the influential elements that could encompass such a definition.
Design/methodology/approach
A comprehensive literature review was conducted to categorise various interpretations of sustainability into distinct dimensions. This approach also identified 16 influential elements that have the potential to sustain CI programs. A self-assessment survey involving 80 French companies was used to evaluate these elements through the Plan, Do, Check, Act framework. In addition, a maturity-benchmark model is introduced to help evaluate the degree of maturity of the most influential elements of CI programs.
Findings
The results highlight the inherent paradox in sustaining CI programs, where robustness and adaptability must coexist. The study identifies a relationship between influential elements and organisational maturity levels, offering actionable insights to help companies advance through these stages. Human-centered elements, such as leadership and employee engagement, have the greatest impact on CI sustainability, emphasizing the importance of fostering a people-centric culture. Conversely, operational elements are less influential, suggesting a need for balanced strategies.
Originality/value
This paper discusses a topic that is rarely addressed, namely, how to sustain CI programs within a CI framework. This paper provides a novel synthesis of influential elements and their relationships to organisational maturity within a CI framework, challenging traditional static views of sustainability. By emphasizing the dynamic and evolving nature of CI programs, it bridges theory and practice, offering organisations a practical model for continuous reassessment and adaptation.
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This chapter attempts to offer a clearer look at the historical roots of the founding of mutualist finance. Without denying that the various forms of financial mutualism may have…
Abstract
This chapter attempts to offer a clearer look at the historical roots of the founding of mutualist finance. Without denying that the various forms of financial mutualism may have legal and organizational roots in ancient times, the author considers what, for contemporary mutualist banks, may constitute the soul.
In its first part, the document presents the individual constructions that existed in the eighteenth and nineteenth centuries, in a context in which economic development and the industrial revolution banished the rules and standards of the former society. It refers to Utopian socialisms as opposed to the scientific solutions proposed for a new social organization and to the new solidarism according to Léon Bourgeois. Christian sources are also called to mind with social Christianity (Protestant) and social Catholicism until the birth of the social doctrine of the Church.
This frenzy of ideas as well as the confrontation with reality led to the birth, in Germany, of the first experiments with alternative finance. This is the subject of the second part of this chapter, which then develops the bank mutualism created by the founding fathers, F.W. Raiffeisen and H. Schulze-Delitzsch.
The historical description of the creation of mutualist banks brings up two major problems when talking about the “other finance”: the interest and activity of the bank. Is an ethical finance capable of proposing a credible alternative? This is a question that needs to be answered in the light of history.
This chapter attempts, more than 150 years after the fact, to demonstrate the ponderous presence of the question and the permanence of the founding ideas in order to comprehend the facts and propose ideas for analysis and construction of an “other finance.”
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Michael K. Buckland, Mark H. Butler, Barbara A. Norgard and Christian Plaunt
There has been a massive investment in the installation of online catalogs: in selection, in the supporting infrastructure of terminals and networks, in catalog record conversion…
Abstract
There has been a massive investment in the installation of online catalogs: in selection, in the supporting infrastructure of terminals and networks, in catalog record conversion, in training, and, lately, in linking online catalogs with other online systems. In contrast, the state‐of‐the‐art of the functionality of online library catalogs has advanced little in the past few years. Rather it has been a matter of existing systems being upgraded towards the functionality of the better systems and of refinements being added. It is time for a further advance in online catalog design. We believe that the next generation of online catalogs should and will have features such as those discussed and illustrated in this article.
Pantaleoni used to say that there are two categories of economists—those who can, in the sense of being able to produce original work, and those who cannot. A more meaningful and…
Abstract
Pantaleoni used to say that there are two categories of economists—those who can, in the sense of being able to produce original work, and those who cannot. A more meaningful and more useful distinction can be made between those who reason about the given problems in terms of stable equilibrium (most of them classicists) and those who do their thinking in terms of unstable equilibrium (actually stable disequilibrium) and sheer disequilibrium (most of them modern and contemporary scientists).
Aubrey H. Wang, Alyssa M. Walters and Y.M. Thum
The purpose of this paper is to provide an empirical comparison of two measures of school success – a value‐added assessment system and the federally‐mandated system of adequate…
Abstract
Purpose
The purpose of this paper is to provide an empirical comparison of two measures of school success – a value‐added assessment system and the federally‐mandated system of adequate yearly progress (AYP) – to identify highly effective urban schools in the USA and to explore the predictive relationship between evidence‐based decision‐making and school improvement.
Design/methodology/approach
A total of 204 urban schools with 6,684 teachers and 149,665 students in grades 1 through 10 participated in the study. Data included teacher survey and students’ standardized reading and math scores from 2002 through 2005. Analyses included factor analysis, growth modeling, and multiple logistic regression analyses.
Findings
AYP status was strongly predicted by student and school demographics rather than by organizational climate and instructional practices. In contrast, school growth as measured by the district's value‐added assessment system was unrelated to the demographics of the student population and related strongly to specific school practices. Specifically, high growth schools exhibited strong evidence‐based decision‐making practice where teachers used the district's benchmark assessment to reflect on instructional practice, used the core curriculum to guide instruction, and received frequent and high quality professional development on reading and math instruction.
Practical implications
As states gravitate away from relying on AYP status as a measure of school success, districts will benefit from integrating measures of growth and using school data management systems that integrate benchmark assessment capabilities and provide teachers with the training and tools needed to use the information in their daily practice.
Originality/value
This study provides a direct comparison of evaluation models using a variety of current methods within a single district that has played a central and highly‐visible role in the education reform movement in the USA.
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Balkrushna Potdar, Tony Garry, Juergen Gnoth and John Guthrie
This study aims to provide empirically generated insights into the drivers of guardianship behaviour among frontline service employees (FLEs) within retail settings.
Abstract
Purpose
This study aims to provide empirically generated insights into the drivers of guardianship behaviour among frontline service employees (FLEs) within retail settings.
Design/methodology/approach
The research framework comprises a quantitative survey of 507 frontline service employees at national supermarkets within New Zealand.
Findings
The findings of the survey suggest that service employee perceptions of internal corporate social responsibility (CSR) activities, their level of psychological ownership towards the supermarket and personal moral beliefs, shape their guardianship behaviours and, consequentially, the prevention of in-store deviant behaviours by customers such as shoplifting.
Originality/value
The contribution of this paper is twofold. First, it offers both a conceptual foundation and an empirical-based evaluation of the antecedents and role of guardianship behaviour among frontline service employees. Second, the conceptual model derived from this research may aid practitioners in developing strategies that engender guardianship behaviours in their employees within service contexts.
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Muhammad Yousuf Ali, Salman Bin Naeem, Rubina Bhatti and Joanna Richardson
The purpose of this study Artificial intelligence (AI) is one of the important emerging trends in information technology and is slowly being implemented in libraries. The…
Abstract
Purpose
The purpose of this study Artificial intelligence (AI) is one of the important emerging trends in information technology and is slowly being implemented in libraries. The researchers have presented a brief strengths, weaknesses, opportunities and threats (SWOT) analysis of the application of AI in Pakistani university libraries.
Design/methodology/approach
This study uses an ethnographic approach for data retrieval. Five chief librarians were interviewed by phone, during which they were asked to identify one key strength, weakness, opportunity and threat in terms of introducing AI technologies. The researchers have used a standard SWOT matrix to report the respondents’ comments.
Findings
AI is already slowly being introduced into Pakistani university libraries. While commenting on ways in which AI could help their libraries deliver more innovative services and better meet user needs, respondents expressed concern about the investment required in funding, time and staff.
Research limitations/implications
Further study is indicated to identify existing AI implementations in Pakistani university libraries and to assess relevant library users’ perspectives. This study is limited to brief, qualitative data; its main purpose is to validate the use of a SWOT analysis.
Practical implications
Given that AI-based tools are already being used in libraries to some degree regardless of location, now is an opportune time to develop strategies for implementing AI technologies more widely. A SWOT analysis can be used to identify and categorize challenges and risks specific to AI in a logical way to support strategic decision-making.
Originality/value
To date, no SWOT analysis has been conducted in the context of AI applications in libraries, let alone specifically university libraries in Pakistan.