Invariants from harmonic analysis for pattern recognition

In this paper, we propose a pattern recognition approach based on the "generalized" Fourier Transforni on groups . The various exemples we give, actually show that this transform may be used for many applications in pattern recognition, detection and motion analysis . An application in disturbance detection on an industrial process is given in the last part of this paper .Nous proposons une approche de la reconnaissance de formes basée sur la Transformée de Fourier «généralisée» sur les groupes. Les nombreux exemples évoqués montrent effectivement que cette Transformée peut avoir beaucoup d'applications dans le domaine de la reconnaissance, de la détection et de la représentation des mouvements en analyses d'images. Ces méthodes proviennent de la théorie des représentations de groupes et de l'Analyse Harmonique Abstraite. Une application sur un procédé industriel (dépropaniseur de raffinerie) pour la détection de perturbations figure dans la dernière partie de cet articl

Certified to make a difference’: the motivation and perceptions of newly qualified early years teachers in England

The last 20 years have brought numerous workforce reforms to the early years sector, enacted in the name of professionalisation, including the recent introduction of a new postgraduate qualification, the Early Years Teacher Status. This article features data from interviews with 22 participants who had just completed this award and situates their views in the relevant policy context and alongside a discussion of what it means to professionalise the early years sector and create a graduate led workforce. The data support findings from similar studies of Early Years Professionals, namely that the interviewees are passionate about working with young children. They view the sector as in need of change, and themselves as potential leaders and agents of change. The participants endorse the view that up-skilling the workforce is essential to the professionalisation of the sector and improving the quality of early years educatio

New leaders in Early Years: making a difference for children in England

This paper examines the extent by which the four domains of the sustainable early childhood leadership model were evident in the experiences of New Leaders in Early Years (NLEY) participants. This original piece of research explores the impact of pedagogical leadership and focuses on participants recruited to a national pilot to make a difference for children in areas of social disadvantage in England. The significance of this paper is timely given the continued focus on leadership, evidenced in the ‘Early Years Workforce Strategy’ (2017). This paper contributes a conceptual framework for early childhood leadership as a methodological tool to make sense of the data. The findings suggest that NLEY did have an impact on the settings and the families they were working with and that the conceptual framework for early childhood leadership was an effective tool for making sense of their journey from novice to leader

Welding in aircraft structures

The welding processes relevant to the welding of aircraft materials are briefly reviewed, together with those materials of present or future interest for aircraft structures. The problems of design for welding are also considered. It is concluded that the prospects for welding are more premising in materials other than light alloys, which win be used for high speed aircraft. In addition, further development of automatic welding machines and large heat treatment facilities is needed