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The work presented in this thesis was undertaken to quantitatively determine the best place to sit on a roller coaster. Maximizing the time spent feeling weightless and the highest value of negative Z acceleration were used as criteria for the best seat. Acceleration values were measured on the California Screamin' roller coaster at Disney California Adventure Park using an iPhone and an application to record data from its accelerometers. After analyzing acceleration data, it was determined that the front row had the greatest negative acceleration in the z direction and was therefore the "best place" to sit.

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Graphic Design is one part of the producer services sector of the modern metropolitan region. It is a sector that has experienced considerable development in terms of number of firms through demand created by the expansion of advertising and multi media. To date research has established that producer services, particularly finance related ones, agglomerate in the central city to take advantage of the agglomeration economies available in large metropolitan areas. This thesis argues that one of the key factors for the agglomeration of graphic design is the need for face-to-face communication with clients and other firms. There has been some work undertaken looking at the location of non-finance producer services, such as design, although these have been presented as snapshots at a point in time.This thesis extends this understanding through an analysis of agglomerations of graphic design firms over a twenty year time horizon. Using details of firm location in Melbourne every five years from 1981 to 2001 the thesis uses a geospatial analytical technique to identify agglomerations and explores the change in the size, location and density of agglomerations of firms. This research shows that the initial agglomeration of 1981 was still present by 2001 and had been joined by a number of new agglomerations ringing the Melbourne CBD while at the same time there has also been a dispersal of firms to the middle suburbs. In order to provide some insight in to the agglomeration of graphic design firms this research also examines the geography of two industries allied to graphic design: advertising and printing. This research shows that graphic designers and advertising agencies tend to locate in similar parts of inner Melbourne which may be due to the need for face-to-face contact between fims in these two industries. (For complete abstract open document)

<p>Future long-duration space missions will take humans farther from the support resources of Earth than ever before. These missions will require microgravity surgical technologies in the case of an emergency that necessitates medical intervention. This experiment integrated three different surgical technologies for testing in weightlessness on parabolic flights: a surgical containment dome, a multi-function surgical wand, and a microgravity blood-air separator. Two fluid loops were utilized: one in which the surgical wand, containment dome, and a wound model were used to provide a realistic mixture of blood simulant and air to the blood-air separator. The other fluid loop used prescribed mixture ratios of air and blood to test the performance of the separator under varying conditions. The results of this experiment showed that the multi-functional surgical tool and dome functioned as designed. In addition, each separator successfully separated the blood and air from the mixture, allowing for future blood transfusion. With this demonstration, each system used in this experiment qualifies as technology readiness level 6. Advancing the technology readiness level of these technologies further will require long duration zero-g testing on-orbit before inclusion in authentic space mission emergency surgical strategy. </p>