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  • Zalewski, Paweł; Tomczak, Arkadiusz (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2012)
    PNDS (Pilot Navigation and Docking System) [1] utilizes the range measurement between laser head and ship’s side to determine the ship’s outline presented on the screen. The noisy measurements and dynamic process noise affect the accuracy of determined parameters and propagate to ship’s heading and position. To improve the performance of PNDS system there was a need to apply the data filtering technique. In the paper the theoretical basis and algorithm of discrete Kalman filter designed for range optimal estimation in PNDS were described. The real data collected during berthing operation of motor vessel Navigator XXI were filtered and compared to row unfiltered data. The conclusions contain evaluation of filter capabilities and its potential application in PNDS system
  • Kostrzewa, Waldemar; Behrendt, Cezary (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2012)
    Growing environmental protection requirements also include problems of ozone depletion by coolants. This article presents a possibility of using a cause-and-effect diagram, known as Ishikawa diagram, for an analysis of faults occurring in marine refrigeration systems. The analysis, focused on refrigeration systems installed in Polish fishing vessels, makes use of extensive faults data collected during research
  • Żukowska, Joanna; Krystek, Ryszard (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2012)
    Accurate knowledge about the causes, circumstances and place of transport accidents is the prerequisite to take the correct action to improve transport safety. Developing appropriate organizational structures, formsand methods of management and implementation of safety measures in the sectoral approach condition the success. Therefore, the Safety Information System is one of the integral areas of the Integrated Transport Safety System ZEUS
  • Zwolan, Piotr; Czaplewski, Krzysztof (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2012)
    The modern simulation software includes an impact of forces acting on the ship hull. One of the mostsignificant forces is sea waves acting. The mathematical model allows simulation of ship motions in irregularsea wave area, both – at deep and shallow waters. The wave surface model enables simulation of the waveelevation in compliance with wave spectrum occurring in various conditions. The paper presents generaldescription of the sea wave model used in maritime simulators. An example of such simulators is used at the laboratory of the Naval University of Gdynia, where it is operated basing on NT-Pro 5000 software by Transas Marine. The latest version of simulation software gives a possibility to select the wave spectrum. Selection of the waving type, depending on sea area location, makes the ship movement more reliable. This is an important element in testing the ships behavior process
  • Arefyev, Igor (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2013)
    Traditional methods for assessing threats were ekological but today are ineffective. It is proposed to address this problem based on the classic balance method, known as the law of conservation of matter Lomonosov– Lavoisier, according to which the total mass of the physical system is preserved for all natural and man-made processes, including the procedures for processing and disposal
  • (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2009)
    This article presents law requirements of the toxic emission to the atmosphere on example usually measured components during the analysis of exhaust gases. The paper describes the impact of NOx, SOx and COx on the atmosphere and also ways to reduce their emission.

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