Deformation twinning and the hall-petch relation in commercial purity ti

The effect of grain size and deformation temperature on the behavior of wire-drawn a-Ti during compression has been examined. At strains of 0.3, the flow stress exhibited a negative Hall–Petch slope. This is proposed to result from the prevalence of twinning during the compressive deformation. Electron backscattered diffraction revealed that {1012} was the most prolific twin type across all the deformation temperatures and grain sizes examined. Of the twinning modes observed, {1122} twinning was the most sensitive to the grain size and deformation temperature. The range of morphologies exhibited by deformation twins is also described.

L. Bernard Hall and the feminine in Australian painting 1885-1935

This thesis draws on images to explore the processes by which an individual - Lindsay Bernard Hall - and a categorical concept - the feminine - became devalued in Australia's national tradition. It celebrates Hall's contribution to Australia's cultural heritage and the significance of his art in the visual record of modernising womanhood.

Review of Eileen Sheehan : Down the sunlit hall, Doghouse

Review of "Down the Sunlit Hall, Doghouse" by Eileen Sheehan. ISBN 9780955200397

Convection in fluid overlying porous layer : an application to Hall-Heroult cell

Finite-element method is used to predict the buoyancy-driven convection in a horizontal layer of fluid (aluminum melt) overlying a porous layer (cathode) saturated with the same fluid. This work aims to compare the Hall–Héroult process in electrolytic cell, where a layer of molten aluminum is reduced over the porous cathode surface. In this study, the physical system of the aluminum melt (fluid) and cathode (porous) together is considered as a composite system of fluid overlying porous layer. The main objective of this study to analyse the velocity components in thin fluid layer and its impact on a porous cathode surface if there is any. In addition, an externally imposed time-independent uniform magnetic field is used to analyse its influence on natural convective forces. The physical system of fluid overlying porous layer is analysed at different Hartmann, Darcy, and fluid-Rayleigh numbers for a fixed Prandtl number (Pr = 0.014). The predicted data show that the convective forces, caused by buoyancy-driven flow, are significant. It is shown that the velocity peaks moves toward the solid wall because of the presence of a magnetic field creating a stronger boundary-layer growth over the permeable cathode surface. The predicted results are plotted in terms of average Nusselt number and Darcy number to indicate the influence of pores and permeability on overall convective heat-transfer characteristics.

Tuning fork: Drill Hall

Collaborative (commissioned 40 minute work ) installation-performance work

The Melbourne Concert Hall

Architects, administrators, interior designers, construction workers and others associated with the construction of the Melbourne Concert Hall are interviewed about the iconic Melbourne landmark. Shows segments from performances by Jackie Love, Cleo Laine, Sylvio Gualdo, Karen Knowles, London Early Music Group, Mondo Rock, the guitarist John Williams, Brian May's Melbourne Showband and conductors Piero Gamba, Patrick Thomas and John Hopkins.

Thermal and ventilation performance of a multifunctional sports hall within an aquatic centre

There has been an increasing demand for sports facilities in urban areas recently. As a result of this, more attention is drawn towards not only the energy performance of these building typologies, but also creating a healthy indoor environment for the users. This Study investigates the thermal and ventilation performance of a sports hall within an aquatic centre using computational fluid dynamics (CFD) simulations. IES Virtual Environment software was used to perform the simulations. A number of scenarios were tested by changing the position of extract fans as well as by incorporating natural ventilation strategies. A high level of discomfort was observed in the space. Better comfort condition was achieved by changing the location of exhaust fans ad openings. The results help to recommend some guidelines to inform the proposed refurbishment plans of the site.

Badminton in sports hall SFX

A sound recording of a sports hall filled with badminton matches being played.

Audience clapping (with hall reverb) SFX

A sound effect of audience clapping.

Badminton in sports hall SFX

Badminton being played in a sports hall.