Life-story methodology and innovative methods were used to explore the process of becoming a developmental adaptive sailing coach. Jarvis's (2009) lifelong learning theory framed the thematic analysis. The findings revealed that the coach, Jenny, was exposed from a young age to collaborative environments. Social interactions with others such as mentors, colleagues, and athletes made major contr...

Malcolm (2014) Variable-geometry solar sailing: the possibilities of the quasi-rhombic pyramid. In: Macdonald, Malcolm (ed.) Advances in Solar Sailing. Series: Springer Praxis Books: Astronautical Engineering . Springer in association with Praxis Publishing, pp. 899-919. ISBN 9783642349065 Copyright © 2014 Springer A copy can be downloaded for personal non-commercial research or study, without ...

Accurate vessel track prediction is key for maritime traffic control and management. results can enable collision avoidance, in addition to being suitable planning routes advance, shortening the sailing distance, improving navigation efficiency. Vessel using automatic identification system (AIS) data has attracted extensive attention community. In this study, a combining density-based spatial c...

The optimization of a solar sail-based orbital transfer amounts to searching for the control law that minimizes flight time. In this context, optimal trajectory is usually determined assuming constant properties. However, total irradiance undergoes both long-term (solar cycles) and short-term variations, recent analyses have shown may an impact on sailing missions requiring accurate thrust modu...

Physalia physalis, commonly known as the Portuguese man-of-war (PMW), is a peculiar looking colony of specialized polyps. The most conspicuous members of this colony are the gas-filled sail-like float and the long tentacles, budding asymmetrically beneath the float. This study addresses the sailing of the PMW, and, in particular, the hydrodynamics of its trailing tentacles, the interaction betw...

At present, the development of Cyber-Physical Systems is governed by methods from embedded systems. However, the complexity of developing human-centered software, hardware, and services is difficult to control. Agile approaches from software engineering to yield fast learning of problem and solution spaces. In particular, Scrum proposes iterative problem solving with short cycles, with a strict...

the main design criteria of ballasted railway tracks include rail deflections, rail bending stresses, rail wheel contact stresses, sleeper bending moments and ballast sleeper contact pressures. numerous criteria have been defined for the design of ballasted railway tracks owing to the various mechanical properties of track components and their complex interaction. therefore, railway track desig...