A.E. KANARACHOS and I.P. VOURNAS
An optimized multigrid method (NSFLEX‐MG) for the NSFLEX‐code (Navier‐Stokes solver using characteristic flux extrapolation) of MBB (Messerschmitt Bolkow Blohm GmbH) is described…
Abstract
An optimized multigrid method (NSFLEX‐MG) for the NSFLEX‐code (Navier‐Stokes solver using characteristic flux extrapolation) of MBB (Messerschmitt Bolkow Blohm GmbH) is described. The method is based on a correction scheme and implicit relaxation procedures and is applied to two‐dimensional test cases. The principal feature of the flow solver is a Godunov‐type averaging procedure based on the eigenvalues analysis of the Euler equations by means of which the inviscid fluxes are evaluated at the finite volume faces. Viscous fluxes are centrally differenced at each cell face. The performance of NSFLEX‐MG is demonstrated for a large range of Mach numbers for compressible inviscid and viscous (laminar and turbulent) flows over a RAE‐2822 airfoil and over a NACA‐0012 airfoil.
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Wear can be minimised by good lubrication. We have travelled far since lubrication meant just “oil”; refining processes have improved, oils are more “oily”, and additives reduce…
Abstract
Wear can be minimised by good lubrication. We have travelled far since lubrication meant just “oil”; refining processes have improved, oils are more “oily”, and additives reduce the effects of gums, oxidation, acid formation, etc., over a useful service life. Extreme pressure agents and detergents allow operation under conditions of load and temperature not possible with straight oils. Yet all these advances count for little, unless abrasives are excluded.
Malcolm Smith, Noorlaila Ghazali and Siti Fatimah Noor Minhad
The purpose of this study is to examine undergraduate accounting students' perceptions of factors contributing to plagiarism activities.
Abstract
Purpose
The purpose of this study is to examine undergraduate accounting students' perceptions of factors contributing to plagiarism activities.
Design/methodology/approach
Survey methods were used to investigate the prominence of different factors, and any differences associated with student characteristics.
Findings
The results suggested that factors contributing to plagiarism include lack of awareness, lack of understanding, lack of competence, and personal attitudes. No evidence was found to support the suggestion that either pressure or the availability of internet facilities had increased the incidence of plagiarism. The study provided evidence that a significant proportion of Malaysian undergraduate accounting students in the study had engaged in plagiarism activities to a limited degree; the observed profile was consistent with the incidence of plagiarism activities being associated with academically weaker, male students with a negative attitude to their studies.
Originality/value
The findings have significant implications for educators if they are to improve the detection and punishment of plagiarism activity, and educate potential perpetrators.
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Temidayo Oluwasola Osunsanmi, Clinton Ohis Aigbavboa, Wellington Didibhuku Thwala and Ayodeji Emmanuel Oke
The idea of implementing supply chain management (SCM) principles for the construction industry was embraced by construction stakeholders to enhance the sector's performance. The…
Abstract
The idea of implementing supply chain management (SCM) principles for the construction industry was embraced by construction stakeholders to enhance the sector's performance. The analysis from the literature revealed that the implementation of SCM in the construction industry enhances the industry's value in terms of cost-saving, time savings, material management, risk management and others. The construction supply chain (CSC) can be managed using the pull or push system. This chapter also discusses the origin and proliferation of SCM into the construction industry. The chapter revealed that the concept of SCM has passed through five different eras: the creation era, the use of ERP, globalisation stage, specialisation stage and electronic stage. The findings from the literature revealed that we are presently in the fourth industrial revolution (4IR) era. At this stage, the SCM witnesses the adoption of technologies and principles driven by the 4IR. This chapter also revealed that the practice of SCM in the construction industry is centred around integration, collaboration, communication and the structure of the supply chain (SC). The forms and challenges hindering the adoption of these practices were also discussed extensively in this chapter.
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W. El‐Ghandour and M. Al‐Hussein
Information technology in construction (ITC) has become a key topic in the last two decades, gaining wide acceptance and is being implemented in the construction research domains…
Abstract
Information technology in construction (ITC) has become a key topic in the last two decades, gaining wide acceptance and is being implemented in the construction research domains as a tool to assist decision makers. Defining the trends of ITC application over the years is essential to provide researchers with a background of what has been done and to shed light on what direction to take in the future application of ITC. This paper presents a holistic view of ITC applications in construction during the last ten years. It describes survey results in the application of information technology in construction, which have been published in twelve scientific journals between 1992 and 2001. This paper focuses primarily on nine ITC tools. It describes their integration, and their use in forty‐three construction applications.
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ROGER FLANAGAN and LAURENCE MARSH
Information technology (IT) has been widely applied across many economic sectors in order to increase competitiveness and reduce costs. This paper identifies that uptake of IT…
Abstract
Information technology (IT) has been widely applied across many economic sectors in order to increase competitiveness and reduce costs. This paper identifies that uptake of IT within construction is low. It is argued that significant barriers preventing construction organizations from investing in IT include uncertainty concerning the identification and measurement of benefits associated with applications. In particular, it is argued that difficulties in quantifying benefits associated with improved information availability and decision making prevent effective IT cost/benefit analysis. Existing approaches to evaluating IT within construction are reviewed. A framework is presented which identifies metrics by which IT impacts both management and operational processes within construction in order to deliver value. An evaluation methodology tailored to one specific IT application, high‐density bar coding in maintenance management, is presented to illustrate the quantification of both the costs and benefits of applying IT.
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Kenneth J. Chapman and Robert A. Lupton
Academic dishonesty in post‐secondary education is a widespread, insidious and global problem. Business educators hosting foreign students locally and teaching abroad more than…
Abstract
Academic dishonesty in post‐secondary education is a widespread, insidious and global problem. Business educators hosting foreign students locally and teaching abroad more than ever need to understand the nuances and attitudes of different student populations and how these differences may manifest themselves in a course. This research contributes to the growing albeit still scanty body of literature demonstrating that significant cross‐national differences exist regarding students' attitudes, beliefs and propensities toward cheating. This study compares US and Hong Kong university business students on three areas: cheating behaviors and perceptions, relationships between academic dishonesty and gender, and prediction of academic dishonesty. A total of 443 usable surveys were collected in the USA and 622 in Hong Kong. Statistically significant differences are presented followed by discussion and implications.
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Kellie Buckley-Walker, Trevor P. Crowe and Peter Caputi
Caring for a person with a substance use disorder (SUD) and/or mental health disorder (MHD) represents a significant burden for family members. The features of “carers/family…
Abstract
Purpose
Caring for a person with a substance use disorder (SUD) and/or mental health disorder (MHD) represents a significant burden for family members. The features of “carers/family members” experiences reflect trauma signatures. Consequently, working through this trauma for carers corresponds with psychological recovery, empowerment processes and intrapersonal/interpersonal needs. The purpose of this paper is to outline a framework called the “personal and relational empowerment (PRE)” framework which enables family support practitioners to help family members to be able to take control of their own lives, develop meaningful relationships and live purposeful and fulfilling lives, regardless of whether the person with the SUD and/or MHD is in recovery or not.
Design/methodology/approach
This paper critically reviews existing frameworks for carer recovery, through a systematic literature search, and proposes a “PRE” alternative to redress the shortfalls in these existing frameworks.
Findings
The PRE framework takes a multi-level needs-based approach to understand carer recovery. This framework links the concepts – psychological recovery, empowerment processes and intrapersonal/interpersonal needs.
Practical implications
The PRE framework recognises the importance of recovery support practitioners being able to balance the immediate carer crisis intervention needs responses with personal growth and well-being supporting interventions.
Originality/value
The PRE framework of family recovery attempts to answer the need to broaden the focus on the family journey to better reflect the principles and practices of contemporary SUD and/or MHD recovery-based support.
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Primary teaching trainees were given a 1‐week placement in environmental science centres, to learn about teaching children in non‐school contexts. The placements were mainly in…
Abstract
Primary teaching trainees were given a 1‐week placement in environmental science centres, to learn about teaching children in non‐school contexts. The placements were mainly in the South West of England, and included both residential and day‐visit centres. Evaluation was through written and oral feedback from hosts and students, against a set of criteria. The article provides a rationale for such placements within a PGCE programme, describes how they operated in practice and analyses the feedback to make recommendations for future operation of the programme. It recommends provision of more documentation on placements at the planning stage, and proposes a more structured programme for working with children and materials development. The article makes recommendations for further research into the logistics of such placements, the impact of materials developed by trainees, their role and status during placement, and potential benefits of negotiating their own placements. It concludes by discussing the implications for placements more generally.
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Yvonne Warburton, Mike Cornford and Sandra Vogel
Last month there was an unexpected complete absence of anything I felt like shouting about. This month there's more than enough.