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  • Filipowicz, Włodzimierz (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2013)
    In traditional approach to position fixing navigator exploits mathematical apparatus based on probability theory. Series of assumptions are required in order to use the platform to draw final conclusions. Limited ability is available regarding fix accuracy a posteriori evaluation. In the paper Mathematical Theory of Evidence is exploited in order to introduce new foundations enabling modeling and solving problems with uncertainty. Modified scheme of approach towards making the fix delivers new standpoint for perceiving accuracy of the result
  • Gucma, Stanisław (Scientific Journals Maritime University of Szczecin, Zeszyty Naukowe Akademia Morska w Szczecinie, )
    This article presents the optimized parameters of the Świnoujście seaport entrance and three-kilometer fairway linking Świnoujście and Szczecin, extended to allow the safe entry of 300-meter bulk carriers drawing up to 13.5 meters. The parameters were determined by a simulation-based optimization method, where the objective function and its constraint were, respectively, the reconstruction costs of that waterway section and the vessels’ navigation safety. The study made use of real-time simulation in coordination with the vessel’s human operator.
  • Muha, Robert; Sever, Drago; Sokolovskij, Edgar (Scientific Journals Maritime University of Szczecin, Zeszyty Naukowe Akademia Morska w Szczecinie, )
    The article identifies the optimal location of the warehouse distribution centre for Slovenian companies in the international environment. The process of location selection takes into account a series of interconnected factors, including flows of goods between countries; the level of development of the transport system and transport infrastructure; the number of transport companies; labour costs and labour productivity; and the tax benefits existing in each country. Scientific literature mentions various methods for choosing a warehouse location, which differ in complexity and in the use of different qualitative and quantitative factors. However, the methods discussed have a disadvantage in that they use the current input variables when defining the optimal location. Choosing the optimal warehouse location is an important long-term logistics process, which should consider the fact that the environment in which companies operate is constantly changing. Using the proposed approach, future trends in the international environment are presented, which enables a better choice of warehouse location in the long run. Through this approach, companies can save on logistic costs, while also providing better quality logistics services. The analysis represents a starting point for deciding the location of a warehouse, but does not constitute a complete set of guidelines for companies to follow, as the choice of a particular location is dependent upon the complexity of the international environment in which a company operates.

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