Effect of reflective practices on student learning in higher education—a real life approach

Validation of ideas are of paramount importance in STEM fields. Learning and converting ideas into practical application is the main purpose of technical education. Aviation is a highly safety sensitive field where confusion and mistakes are not acceptable. This brings serious challenges for academia that provides higher education in this field. A yearlong observation of the reflective practices was done at an Australian university while teaching aviation students to analyse outcomes of reflection on teaching and learning. Reflection provides a powerful opportunity to a teacher in improving teaching qualities and to identify training needs for enhancing teaching capabilities

Crystallographic-shear-phase-driven W₁₈O₄₉ nanowires growth on nanocrystalline W surfaces

The present paper reports the growth and branching mechanism of W18O49 nanowires grown on nanocrystalline tungsten (W) surfaces. Nanocrystalline W powder was prepared using high energy ball milling. The nanopowder was non-isothermally heat-treated up to 1400°C in argon atmosphere. The nanowires of 30–50 nm diameter were observed on nanopowder surfaces after the heat-treatment. A model based on crystallographic shear phase formation to accommodate the oxygen deficiency during the reduction of WO3 is discussed to explain the growth and branching mechanism of these nanowires which correlates well with the observed angle for the branching

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Not AvailableThe nutritional composition of potato flour indicated a higher fibre (3.50%) and carbohydrate (82.79%) content than wheat flour. Wheat flour showed higher water holding capacity (7.4 ml g-1), oil holding capacity (2.8 ml g-1), water retention capacity (50.4%) and alkaline water retention capacity (55.8%) than potato flour. The crude fibre and carbohydrate content of biscuits increased significantly (p<0.05) from 2.34 to 3.52% and 68.88 to 69.72%, respectively, after incorporation of potato flour. The spread ratio of biscuits decreased with incorporation of potato flour. The L* value decreased significantly (p<0.05) from 30.44 to 25.47 whereas the hardness of biscuits increased significantly (p<0.05) from 9.8N to 20.8N on increasing the level of potato flour incorporation.Not Availabl

In vitro wear, corrosion and biocompatibility of electron beam melted gamma-TiAl

Electron beam melting (EBM), a powder bed fusion based additive manufacturing process, has been used to fabricate Ti-48Al-2Cr-2Nb gamma-TiAl samples. The sampleswere evaluated for their potential use in biomedical applications in terms of in vitro wear, corrosion and biocompatibility in as-deposited (AD) and hot isostatically pressed (HIPed) conditions. The samples were found to exhibit a lamellar microstructure consisting of gamma-TiAl and Ti3Al (alpha(2)) phases in both the conditions. However, their in vitro wear and corrosion performance in Hank's balanced salt solution (HBSS), with and without fetal bovine serum (FBS), was found to be very different. The AD samples exhibited comparable passive behavior to commercially pure titanium (CP-Ti). Their corrosion potentials and currents were better than those of CP-Ti. The gamma-TiAl samples exhibited wear rates of the order of 10(-4) mm(3)/N center dot m in HBSS. The presence of FBS was found to increase the corrosion and the wear rate of this alloy increased by 65%. In vitro cell culture experiments, using NIH3T3 cells, demonstrated that the EBM processed gamma-TiAl is non-toxic and can allow cell adhesion and proliferation as effectively as CP-Ti. (C) 2017 Elsevier Ltd. All rights reserved

Technical evaluation of a runway using the deflection method

An aircraft imposes a heavy load on a runway during landing, resulting in deflection of the runway pavement. Therefore, runway performance is influenced by potential deflection levels. Estimating deflection at touch-down point is a challenging task, however. Generally, the applied load depends on the weight and vertical velocity of the aircraft before hitting the touchdown point. Similarly, performance of runway pavement is influenced by many factors such as number of landings, load factor, soil characteristics, etc. This study discusses landing practices, imposed load analysis, and runway pavement evaluation. The study is based on the idealisation of runway characteristics using mechanical elements, and it suggests that the mechanical modelling approach can be applied to estimate runway deflection. As a result, the analytically predicted deflection findings instead of the semi-empirical practices currently followed by various states of the International Civil Aviation Organisation (hereinafter - ICAO) can be used to carry out technical evaluation of a runway pavement

A study of influences of the workers’ compensation and injury management regulations on aviation safety at a workplace

As the aviation industries developed, so too did the recognition that there must be an effective regulatory framework to address issues related to the workers’ compensation and rehabilitation. All employees would like to work and return home safely from their workplace. Therefore, the efficient management of workplace injury and disease reduces the cost of aviation operations and improves flight safety. Workers’ compensation and injury management laws regulate a majority of rehabilitation and compensation issues, but achieving an injury-free workplace remains a major challenge for the regulators. This paper examines the clauses of the workers’ compensation and injury management laws of Western Australia related to workplace safety, compensation, and rehabilitations of the injured workers. It also discusses various provisions of common law under the relevant workers’ health injury management legislations