At a time of high demand for engineering graduates, the mean graduation completion rate of engineering undergraduates in Australia has been identified as approximately 54% (with considerable variation across institutions and sectors). Such a proportion of non-completions has been viewed as an excessive loss to the qualified workforce of Australia. Broad brush, government-collected statistics do not, however, provide the level of detail required to understand who leaves, when and why they leave and where they go. This paper reports on a pilot study undertaken to precede and inform final decisions on research design and methodology for a multi institutional project seeking to understand and reduce student attrition from engineering degrees across Australia. The aim of the project is to produce guidelines on curriculum formulation and delivery strategies to reduce attrition from engineering programmes while meeting course outcomes.The pilot study was conducted at an institution which has a relatively diverse range of students (a high proportion of whom study part time) and engineering degree structures incorporating traditional and internship-based degrees. Results from a cohort analysis which tracked pathways to completion or non-completion of the degree for the cohorts from two specific entry years are presented. From this analysis, groups of students who "persisted over long periods", "switched to another degree" or "withdrew from the university" were identified and interviewed. Their experiences and stories formed an essential pathway to a better understanding of the dynamics of retention/attrition and factors which required further investigation before the multi institutional study began.
Switched pattern diversity reception is implemented by using antenna elements with different directional radiation patterns and switching the receiver to the element providing the best output. The use of pattem diversity can improve system performance. We simulate the performance of various ideal pattern diversity antennas. The results are compared with an ideal omni-directional antenna and with energy density antennas. Significant improvements are shown for diversity antennas in multi-path environments characterised by Rayleigh and Rician amplitude distributions.
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