366 resultados para sailing
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Issued without the Shipmaster's assistant which was published separately in 1822 under the title: The merchant's and shipmaster's assistant.
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Mode of access: Internet.
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Mode of access: Internet.
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Mode of access: Internet.
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Mode of access: Internet.
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Mode of access: Internet.
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A critique of experiential learning in engineering
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This presentation showcases the application of a university-based education research lab (ERL) model to the evaluation of a community sailing program for individuals with disabilities. Presenters conceptualize the ERL model as a mutually beneficial relationship between universities and community education agencies.
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A Central American regional workshop on the SSF Guidelines, held in Puntarenas, Costa Rica, in December 2015 sought commitment to take forward the Guidelines in a binding manner.
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We explore the motivations and expectations that are impacting Portuguese recently graduated individuals in their decision of becoming international managers. Throughout a qualitative analysis over 20 interviews we construct a theoretical framework of recent graduates actual expectations and motivations regarding their international assignments. Accordingly, individuals are conducted by the desire of cultural-diversity experiences, social pressures and challenging environments. Expectations are not a result of a straightforward process; instead, they are dynamic and influenced by the challenges that international managers have to cope with during their international journey. Moreover, expectations and motivations are not mutually exclusive; they produce impact on each other, characterizing a dynamic process of international managers‟ lives.
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With increasing rate of shipping traffic, the risk of collisions in busy and congested port waters is expected to rise. However, due to low collision frequencies it is difficult to analyze such risk in a sound statistical manner. This study aims at examining the occurrence of traffic conflicts in order to understand the characteristics of vessels involved in navigational hazards. A binomial logit model was employed to evaluate the association of vessel attributes and the kinematic conditions with conflict severity levels. Results show a positive association for vessels of small gross tonnage, overall vessel length, vessel height and draft with conflict risk. Conflicts involving a pair of dynamic vessels sailing at low speeds also have similar effects.
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Parametric roll is a critical phenomenon for ships, whose onset may cause roll oscillations up to +-40 degrees, leading to very dangerous situations and possibly capsizing. Container ships have been shown to be particularly prone to parametric roll resonance when they are sailing in moderate to heavy head seas. A Matlab/Simulink parametric roll benchmark model for a large container ship has been implemented and validated against a wide set of experimental data. The model is a part of a Matlab/Simulink Toolbox (MSS, 2007). The benchmark implements a 3rd-order nonlinear model where the dynamics of roll is strongly coupled with the heave and pitch dynamics. The implemented model has shown good accuracy in predicting the container ship motions, both in the vertical plane and in the transversal one. Parametric roll has been reproduced for all the data sets in which it happened, and the model provides realistic results which are in good agreement with the model tank experiments.