Torque control strategy for an axial flux switched reluctance machine

This paper reflects the work done to design a torque control strategy for an axial flux switched reluctance machine. The general electrical model is first presented but as the switched reluctance machine behaves nonlinearly1 a (three-dimensional) finite element method characterization is performed, so the nonlinearity may be considered. Once the machine is characterized in FEM a Simulink model is developed where a torque control strategy is proposed. Then, both the machine and the control are experimentally tested. The control setting, and the obtained real performance results are also presented in this document. Finally, the most outstanding conclusions about the control strategy are captured. Main difficulties encountered during the implementation of the control strategy are also collected

Facilitating whole-of-institution engagement in the first year experience through distributed leadership approaches

This paper describes a systematic, whole-of-institution strategy that uses distributed leadership to engage academics and professional staff in supporting transition, success and retention for first year students at an Australian university. A set of interrelated activities has achieved outcomes that include cross-institutional engagement and collaboration, student success and institutional recognition

Distributed and collaborative: Experiences of local leadership of a first-year experience program

The first year experience (FYE) is a domain in which local level leadership is critical for engaging academics in taking a whole of curriculum focus on student transition and success, and working collaboratively with professional staff. This paper describes ways in which local leadership is experienced at the faculty level in an institutional FYE program, based on interviews with faculty coordinators and small grant recipients. Initial analysis using the distributed leadership tenets described by Jones, Hadgraft, Harvey, Lefoe and Ryland (2014) revealed features, such as collaborative communities, that enabled success, as well as differences across faculties. More fine grained analysis indicated further themes in engaging others, enabling and enacting the FYE program: gaining buy-in; being opportunistic; the need for evidence of success and recognition; the need for collegial support for coordinators and self-perceptions of ‘leadership’ being about making connections, collaboration, trust and expertise

Reacción liquenoide oral en relación con una restauración de amalgama de plata

La amalgama de plata es uno de los materiales de uso odontológico, frente al que se pueden producir reacciones de hipersensibilidad. La forma más frecuente es la aparición de una reacción liquenoide, que afecta a la mucosa oral en contacto directo con la restauración de amalgama y que está producida por una reacción de hipersensibilidad retardada tipo IV, como respuesta inmune mediada por células frente al mercurio o a algún otro componente de la amalgama dental. En este trabajo presentamos un caso de reacción liquenoide oral (RLO) asociada a una restauración de amalgama de plata. Una mujer de 38 años de edad solicitó asistencia odontológica para el tratamiento de la caries del diente #37, realizándose una preparación cavitaria clase I de Black, que se rellenó con amalgama de plata. Pasados 19 meses, la paciente volvió al consultorio dental, apreciándose una zona atrófica, ligeramente eritematosa, en la mucosa yugal izquierda, justamente en la región de mucosa contactante con el molar restaurado con amalgama de plata. La mucosa yugal derecha tenía un aspecto normal. La paciente había sentido cierta sensación rara en esa zona al comer comidas picantes. No había recibido ningún tipo de tratamiento desde la anterior visita, ni presentaba antecedentes alérgicos. Tras la toma de biopsia, el estudio anatomopatológico demostró cambios histológicos compatibles con liquen plano oral. La paciente decidió no recambiar la restauración, por valorar que no tenía molestias importantes y no deseaba someterse de nuevo al tratamiento. Las restauraciones de otros dientes se le realizaron con resina compuesta, sin que se produjese reacción alguna en la mucosa.Hypersensitivity to mercury associated with amalgam restorations may occur and present in one of two different ways. Most commonly it presents as an oral lichenoid reaction affecting oral mucosa in direct contact with an amalgam restoration and represents a delayed, type IV, cell mediated immune response to mercury or one of the other constituents of the dental amalgam. We report a case of oral lichenoid reaction associated to amalgam restoration. A 38 year-old woman presented a caries lesion of tooth #37. A Black's class I preparation was performed and filled with amalgam. After 19 months, intra-oral examination revealed atrophic lesion, lightly erythematous, affecting the left buccal mucous. The lesion contacted directly with the amalgam restoration in the lower first molar. The right buccal mucosa was normal. His medical history was unremarkable, he was taking no medication and had no known allergies. However, the patient had felt certain rare sensation in that zone when eating sharp meals. Biopsy showed histological changes compatible with oral lichen planus. The patient decided not to change again the restoration, because she did not have important annoyances and she did not wish to be treated again. Other restorations were performed with composite resins, and no reaction was evidenced in the mucosa

An evolving approach to developing academics understanding of transition for first year students. A Practice Report

The purpose of this paper is to describe the strategies used in the First Year Experience (FYE) Project at the University of Technology, Sydney (UTS) to engage and support academics to address student transition and diversity. The UTS FYE framework has provided a mechanism for third generation transition pedagogy which has been realised through a range of strategies including the establishment of a UTS FYE Coordinator overseeing the design and implementation of FYE Forums, the FYE small grant scheme, and supporting the First Year Transition Experience (FYTE) coordinators in faculties. These strategies have resulted in an evolving learning community in which staff have a sense of belonging and identity and their learning is situated and negotiated. The impact of this project on academics is demonstrated through the increasing participation in forums, increasing sophistication of grant applications and the leadership of the FYTE coordinators

Achieving academic engagement: Supporting academics to embed first year transition pedagogies in the curriculum

This paper describes a small grants scheme aimed at supporting academics to embed first year (FY) transition pedagogies in the curriculum, as part of a university-wide FYE strategy. The scheme enables first year subject coordinators to apply for funding to address one or more of the six transition pedagogy principles in ways appropriate for their disciplines and students. Over three years, fifty grants have been awarded to coordinators from all faculties for projects that range from resource creation to tutor development to changes in assessment and feedback practices. The paper describes the operation of the scheme and provides an initial analysis of the successes and challenges of its first two years from the perspectives of the grant holders and the UTS FYE Coordinator. Two examples of FYE grants are used to illustrate some features of successful projects

Bifurcations of the Hamiltonian fourfold 1:1 resonance with toroidal symmetry

This paper deals with the analysis of Hamiltonian Hopf as well as saddle-centre bifurcations in 4-DOF systems defined by perturbed isotropic oscillators (1:1:1:1 resonance), in the presence of two quadratic symmetries ¿ and L1. When we nor- malize the system with respect to the quadratic part of the energy and carry out a reduction with respect to a 3-torus group we end up with a 1-DOF system with several parameters on the thrice reduced phase space. Then, we focus our analysis on the evolution of relative equilibria around singular points of this reduced phase space. In particular, dealing with the Hamiltonian Hopf bifurcation the `geometric approach' is used, following the steps set up by one of the authors in the context of 3-DOF systems. In order to see the interplay between integrals and physical param- eters in the analysis of bifurcations, we consider as perturbation a one-parameter family, which in particular includes one of the classical Stark-Zeeman models (par- allel case) in 3 dimension