Qing Wang, Yadong Dou, Jiangxiong Li, Yinglin Ke, Patrick Keogh and Paul G. Maropoulos
The purpose of this paper is to present an optimal posture evaluation model to control the assembly gaps in aircraft wing assembly. The gaps between two mating surfaces should be…
Abstract
Purpose
The purpose of this paper is to present an optimal posture evaluation model to control the assembly gaps in aircraft wing assembly. The gaps between two mating surfaces should be strictly controlled in precision manufacturing. Oversizing of gaps will decrease the dimensional accuracy and may reduce the fatigue life of a mechanical product. To reduce the gaps and keep them within tolerance, the relative posture (orientation and position) of two components should be optimized in the assembly process.
Design/methodology/approach
Based on the step alignment strategy, i.e. preliminary alignment and refined alignment, the concept of a small posture transformation (SPT) is introduced. In the preliminary alignment, an initial posture is estimated by a set of auxiliary locating points, with which the components can be quickly aligned near each other. In the refined alignment, the assembly gaps are calculated and the formulation of the gaps with component posture is derived by the SPT. A comprehensive weighted minimization model with gap tolerance constraints is established for redistributing the gaps in multi-regions. Powell-Hestenes-Rockafellar optimization, Singular Value Decomposition and K-Dimensional tree searching are introduced for the solution of the optimal posture for localization.
Findings
Using the SPT, the trigonometric posture transformation is linearized, which benefits the iterative solution process. Through the constrained model, overall gaps are minimized and excess gaps are controlled within tolerance.
Practical implications
This method has been tested with simulated model data and real product data, the results of which have shown efficient coordination of mating components.
Originality/value
This paper proposed an optimal posture evaluation method for minimizing the gaps between mating surfaces through component adjustments. This will promote the assembly automation and variation control in aircraft wing assembly.
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Hannah Richardson, Julian Ernst, Rebecca Drill, Annabel Gill, Patrick Hunnicutt, Zoe Silver, Mikaela Coger and Jack Beinashowitz
This study aims to examine what patients say is helpful in psychodynamic psychotherapy by analyzing responses to an open-ended question at two time points: three months into…
Abstract
Purpose
This study aims to examine what patients say is helpful in psychodynamic psychotherapy by analyzing responses to an open-ended question at two time points: three months into treatment and termination.
Design/methodology/approach
Participants in this naturalistic study were a diverse group of patients seeking treatment at a psychodynamic psychotherapy training clinic (within a public hospital system). The authors used thematic analysis to categorize patient responses to an open-ended question about what is helpful in their treatment.
Findings
The authors found that a majority of patients found their psychotherapy helpful, and patient responses broke down into 16 categories. Themes that emerged from categories were what patients experience or feel, what therapists/therapy provides and what patients do in therapy. The most frequently endorsed category at both three months and termination was embedded within other categories, “mention of an other,” which captured when patients specifically mentioned another person (i.e. the therapist) in their response. The next most frequently endorsed categories were “talking/someone to talk with,” “feeling better/experiencing well-being/improved functioning” and “having regularity/structure” (at three months) and “having attention directed at experience,” “having regularity/structure” and “experiencing the professional role of the therapist” (at termination).
Originality/value
Findings shed light on factors contributing to helpful psychotherapy from patients’ perspectives in their own words. While previous research has shown that the therapy relationship is an important factor in effective therapy, the findings of this study highlight this ingredient in a personal, spontaneous way.
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Cath Fraser, Philip Bright, Jack Keogh and Olayemi Abdullatif Aliyu
When two regional institutes of technology merged in 2016, it created a singular opportunity for disruption to business-as-usual and for organizational transformation. The new…
Abstract
When two regional institutes of technology merged in 2016, it created a singular opportunity for disruption to business-as-usual and for organizational transformation. The new entity’s strategic intent is to be regionally relevant, learner-centric, sustainable, and innovative in delivery. Overarching all these considerations is an emphasis on relationships with our community, and demonstrating leadership in the re-positioning of culture at the heart of everything we do. Aotearoa New Zealand is a nation that prides itself on our dual heritage (Māori and European), and the way in which this is reflected in all public sectors in a commitment to a contemporary, bi-cultural framework. The core principles of partnership, protection and participation (Ministry of Justice, 2016) are the means by which legislation, public policies, and curriculum development should be judged. Yet Māori educational achievement lags behind that of non-Māori by 9.5% in degree completions (Marriott & Sim, 2014). Boosting achievement of Māori is a key government priority (Tertiary Education Commission, 2016) and organizational imperative.This chapter describes our cultural milieu and institutional vision, discusses the ways in which core values from Māori culture have informed curriculum development, and offers a pathway toward organizational sustainability. We outline how these different ways of thinking are being communicated to our students, staff, partners, and stakeholders, and how we expect to add value to the learning experience, and relevance to our own society and the wider global community. We emphasize that leadership and strategies directed toward sustainability, must and should begin with an understanding of organizational cultural identity - who we are, where we stand, and what we stand for.
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This chapter begins with a reflection on the call for investigating how entrepreneurial competencies are developed (Bird, 1995) in the context of university-based entrepreneurship…
Abstract
This chapter begins with a reflection on the call for investigating how entrepreneurial competencies are developed (Bird, 1995) in the context of university-based entrepreneurship centers. Through clarifying the nature of entrepreneurial competencies and applying a social constructivist perspective of learning, it is proposed that effective nurturing of entrepreneurial competencies for university students through entrepreneurship centers shall be based on five key characteristics; namely, active experimentation, authenticity, social interaction, sense of ownership, and scaffolding support. The chapter contributes to the literature through establishing a link between entrepreneurship education and entrepreneurial competencies in the context of university-based entrepreneurship centers, which have become an increasingly popular way for promoting entrepreneurial development. The practical implications on nurturing entrepreneurs through entrepreneurship centers are discussed, together with the directions for further research. This chapter is designed as a refection upon Bird’s original article articulating the concept of entrepreneurial competencies. In this chapter, the author outlines how entrepreneurial competencies can be developed through education programs, specifically via entrepreneurship centers.
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The maintenance of a distinction between management and leadership behaviours at the conceptual and/or practical level negates the search for a “practical theory” of leadership…
Abstract
The maintenance of a distinction between management and leadership behaviours at the conceptual and/or practical level negates the search for a “practical theory” of leadership. If management is viewed as an art, management and leadership behaviours are inextricably intertwined in an organisational setting. Both activities are part of the cultural action of an organisation.
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Marcus Carter and Ben Egliston
The resurgence of VR began in 2009 with Palmer Luckey's project to create a head-mounted 3D VR gaming device, leading to the development of Oculus. This movement was heavily…
Abstract
The resurgence of VR began in 2009 with Palmer Luckey's project to create a head-mounted 3D VR gaming device, leading to the development of Oculus. This movement was heavily influenced by hardcore gaming values, particularly those of John Carmack, a pioneer in first-person shooter games. The Oculus Kickstarter in 2012 emphasised VR for hardcore gamers, aiming for high graphical fidelity and immersive experiences. However, this focus has limited VR's potential. The chapter examines two case studies: SuperHot VR and Beat Saber. SuperHot VR challenges the emphasis on photorealism by offering immersion-through-proprioception, providing a unique VR experience without relying on high graphical fidelity. Beat Saber, though often seen as a casual game, has become the bestselling VR game by offering a pleasurable, short-play experience reminiscent of Nintendo Wii's casual games. The success of these games suggests that VR can thrive by appealing to a broader audience beyond hardcore gamers. By focusing on embodiment rather than purely visual immersion, these games highlight the potential for diverse VR experiences. This chapter argues that the fixation on hardcore gaming values, characterised by hyper-realistic graphics and intense gameplay, has restricted VR's growth. The success of games like SuperHot VR and Beat Saber demonstrates that VR can achieve broader appeal and greater success by catering to more varied gaming preferences and moving beyond the narrow confines of hardcore gamer culture.