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Scientific Journals of the Maritime University of Szczecin,
Zeszyty Naukowe Akademii Morskiej w Szczecinie
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Scientific Journals of the Maritime University of Szczecin,
Zeszyty Naukowe Akademii Morskiej w Szczecinie
ISSN 1733-8670 (Printed)
ISSN 2392-0378 (Online)
DOI PREFIX 10.17402
The Scientific Journals (SJ) issued by the Maritime University of Szczecin (MUS) is a magazine which presents results of MUS research and educational activities. SJ has been published since 1973 but in 2004 it changed the ISSN from 0209-2069 to 1733-8670 as a result of MUS changing its name from Wyższa Szkoła Morska w Szczecinie to Akademia Morska w Szczecinie.
At the beginning there were several papers published in SJ and they were connected with maritime affairs. Doctoral and habilitation theses had also been published then. With time the SJ scope expanded to among others nautical issues, operation of the vessel, marine power plant operation. The magazine presented also symposium and conference proceedings.
Since 2008, the magazine has been published in A4 format with a new layout. Since 2010 the journal has been publishing the articles in English. By the end of 2014 a total of 112 Scientific Journals will have been published.
The SJ Scientific Board ensures high quality of published papers. All papers are reviewed confidentially and anonymously (double blind review) and are a subject of scientific edition.
The Scientific Journals printed version is primary.
http://scientific-journals.eu/
List of Issues
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61 Scientific Journals of the Maritime University of Szczecin, no. 61 / 2020
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60 Scientific Journals of the Maritime University of Szczecin, no. 60 / 2019
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59 Scientific Journals of the Maritime University of Szczecin, no. 59 / 2019
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58 Scientific Journals of the Maritime University of Szczecin, no. 58 / 2019
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57 Scientific Journals of the Maritime University of Szczecin, no. 57 / 2019
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56 Scientific Journals of the Maritime University of Szczecin, no. 56 / 2018
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55 Scientific Journals of the Maritime University of Szczecin, no. 55 / 2018
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54 Scientific Journals of the Maritime University of Szczecin, no. 54 / 2018
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53 Scientific Journals of the Maritime University of Szczecin, no. 53 / 2018
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52 Scientific Journals of the Maritime University of Szczecin, no. 52 / 2017
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51 Scientific Journals of the Maritime University of Szczecin, no. 51 / 2017
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50 Scientific Journals of the Maritime University of Szczecin, no. 50 / 2017
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49 Scientific Journals of the Maritime University of Szczecin, no. 49 / 2017
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48 Scientific Journals of the Maritime University of Szczecin, no. 48 / 2016
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47 Scientific Journals of the Maritime University of Szczecin, no. 47 / 2016
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46 Scientific Journals of the Maritime University of Szczecin, no. 46 / 2016
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45 Scientific Journals of the Maritime University of Szczecin, no. 45 / 2016
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44 Scientific Journals of the Maritime University of Szczecin, no. 44 / 2015
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43 Scientific Journals of the Maritime University of Szczecin, no. 43 / 2015
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42 Scientific Journals of the Maritime University of Szczecin, no. 42 / 2015
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41 Scientific Journals of the Maritime University of Szczecin, no. 41 / 2015
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40 Scientific Journals of the Maritime University of Szczecin, no. 40 / 2014
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39 Scientific Journals of the Maritime University of Szczecin, no. 39 / 2014
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38 Scientific Journals of the Maritime University of Szczecin, no. 38 / 2014
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37 Scientific Journals of the Maritime University of Szczecin, no. 37 / 2014
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36.2 Scientific Journals of the Maritime University of Szczecin, no. 36 / 2013
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36.1 Scientific Journals of the Maritime University of Szczecin, no. 36 / 2013
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35 Scientific Journals of the Maritime University of Szczecin, no. 35 / 2013
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34 Scientific Journals of the Maritime University of Szczecin, no. 34 / 2013
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33 Scientific Journals of the Maritime University of Szczecin, no. 33 / 2013
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32.2 Scientific Journals of the Maritime University of Szczecin, no. 32 / 2012
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32.1 Scientific Journals of the Maritime University of Szczecin, no. 32 / 2012
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31 Scientific Journals of the Maritime University of Szczecin, no. 31 / 2012
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30 Scientific Journals of the Maritime University of Szczecin, no. 30 / 2012
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29 Scientific Journals of the Maritime University of Szczecin, no. 29 / 2012
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28 Scientific Journals of the Maritime University of Szczecin, no. 28 / 2011
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27 Scientific Journals of the Maritime University of Szczecin, no. 27 / 2011
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26 Scientific Journals of the Maritime University of Szczecin, no. 26 / 2011
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25 Scientific Journals of the Maritime University of Szczecin, no. 25 / 2011
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24 Scientific Journals of the Maritime University of Szczecin, no. 24 / 2010
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23 Scientific Journals of the Maritime University of Szczecin, no. 23 / 2010
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22 Scientific Journals of the Maritime University of Szczecin, no. 22 / 2010
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21 Scientific Journals of the Maritime University of Szczecin, no. 21 / 2010
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20 Scientific Journals of the Maritime University of Szczecin, no. 20 / 2010
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19 Scientific Journals of the Maritime University of Szczecin, no. 19 / 2009
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18 Scientific Journals of the Maritime University of Szczecin, no. 18 / 2009
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17 Scientific Journals of the Maritime University of Szczecin, no. 17 / 2009
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16 Scientific Journals of the Maritime University of Szczecin, no. 16 / 2009
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15 Scientific Journals of the Maritime University of Szczecin, no. 15 / 2008
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14 Scientific Journals of the Maritime University of Szczecin, no. 14 / 2008
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13 Scientific Journals of the Maritime University of Szczecin, no. 13 / 2008
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12 Scientific Journals of the Maritime University of Szczecin, no. 12 / 2007
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11 Scientific Journals of the Maritime University of Szczecin, no. 11 / 2006
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10 Scientific Journals of the Maritime University of Szczecin, no. 10 / 2006
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09 Scientific Journals of the Maritime University of Szczecin, no. 9 / 2005
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08 Scientific Journals of the Maritime University of Szczecin, no. 8 / 2006
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07 Scientific Journals of the Maritime University of Szczecin, no. 7 / 2005
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06 Scientific Journals of the Maritime University of Szczecin, no. 6 / 2005
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05 Scientific Journals of the Maritime University of Szczecin, no. 5 / 2005
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04 Scientific Journals of the Maritime University of Szczecin, no. 4 / 2004
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03 Scientific Journals of the Maritime University of Szczecin, no. 3 / 2004
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02 Scientific Journals of the Maritime University of Szczecin, no. 2 / 2004
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01 Scientific Journals of the Maritime University of Szczecin, no. 1 / 2004
Recent Submissions
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(Scientific Journals Maritime University of Szczecin, Zeszyty Naukowe Akademia Morska w Szczecinie, )Dear Readers, It is my great pleasure to present to our readers the most recent issue 61 (133) of the Scientific Journals of the Maritime University in Szczecin. This time, the Scientific Journals contains the results of nineteen research endeavors that are categorized into seven thematic groups: Automation, Electronic and Electrical Engineering, Civil Engineering and Transport, Environmental Engineering, Mining and Energy, Information and Communication Technology, Management and Quality Studies, Mechanical Engineering, and Miscellaneous. The first section – Automation, Electronic and Electrical Engineering – contains three papers. The authors of the first paper discuss issues with compensating harmonic currents, reactive power, and imbalances in the bypass load power of a closed-loop control of a shunt active power filter. The next paper describes a method for steering the mechatronics of a shaft generator by applying permanent magnet synchronous generators (PMSG), allowing for work stability while changing the rotational speed of the shaft. In the third paper, the authors present their research on the durability of selected LED lamps. The second section – Civil Engineering and Transport – includes five papers. The first describes the application of a parametric method in railway transport, especially for track infrastructure inventory. The authors of the second paper share their interesting results regarding simulations of accident results and navigational risks in fairways stemming from a ship’s technical malfunctions. The problems discussed in the third paper involve determining the position of inland vessels in the immediate vicinity of the Długi and the Kolejowy Bridges in Szczecin. As for the fourth paper, the author analyses issues associated with the safe management of a ship’s exploitation, especially as it relates to maritime safety culture. The last article in this section examines social expectations regarding public transport using the example of Szczecin. The third section – Environmental Engineering, Mining, and Energy – contains one paper that reports simulated oil spills and their spread under various atmospheric conditions. The fourth section – Information and Communication Technology – also includes one article, which presents a software pack for monitoring various possible events that threaten a ship and its crew. The fifth section – Management and Quality Studies – contains three papers. The first is devoted to human resource management in a company with regard to its development. The subject matter of the next two papers is related to the social responsibility of managing maritime ports and the environmental and societal effects of such management. The penultimate section – Mechanical Engineering – contains three articles. The authors of the first paper discuss torsional, longitudinal, and lateral vibrations of a propeller shaft. The next paper presents changes in the microstructure of elements made of unalloyed cast steel with 0.3% carbon content regenerated using welding technology. The third paper presents a method for gassing-up ethylene without uncontrolled losses and disruptions in a transshipment installation. 6 Scientific Journals of the Maritime University of Szczecin 61 (133) The last section – Miscellaneous – contains three articles. The author of the first one describes a model of safe infrastructure for an oil terminal with regards to its exploitation process. The next paper discusses the effects of LED lighting on human health, especially the eyes. The last paper contains a comparative bibliometric analysis of sources of maritime transport based on the Web of Science database. I invite all readers to visit our website: http://scientific-journals. eu/. It provides all essential information on the publication process, along with full papers included in the current 61 (133) issue and archival papers published in the Scientific Journals of MUS.
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(Scientific Journals Maritime University of Szczecin, Zeszyty Naukowe Akademia Morska w Szczecinie, )This paper presents the compensation tasks performed by a shunt active power filter, including compensation of harmonic currents, reactive power, and an unbalanced load current. The paper demonstrates novel control of the shunt active power filter in a closed-loop system. The control algorithm was verified by performing simulations and compared the simulated results with those obtained in an open-loop control system. All simulations were conducted in the PLECS program using a control algorithm written in C programming language.
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(Scientific Journals Maritime University of Szczecin, Zeszyty Naukowe Akademia Morska w Szczecinie, )Among the various methods for generating electricity on a ship, a shaft generator system is characterized by the highest energy and economic efficiency. The use of a Permanent Magnet Synchronous Generator (PMSG) in these systems, in comparison to classic synchronous generators, improves the ship’s propulsion efficiency and the system’s reliability. The problem of adjusting the PMSG’s excitation and changing the speed of the generator’s shaft can be solved by the use of modern power and electronic systems. This article presents a method for controlling the mechatronic system of a shaft generator with a PMSG, which enables stable operation to be achieved when changing the rotational speed of the shaft. Analytical and simulation studies were carried out and have enabled the boundaries of the area in which the PMSG can operate to be determined, while maintaining the required electrical power. The results have shown that the use of a PMSG instead of an EESG can increase the energy efficiency of the shaft generator system and increases the system’s reliability.
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(Scientific Journals Maritime University of Szczecin, Zeszyty Naukowe Akademia Morska w Szczecinie, )Luminous flux reduction during operation affects the operating lifetimes of LED lamps. Due to the very long lifetimes of LED sources, i.e. tens of thousands of hours, the lifetime declared by the manufacturer is most often determined by forecasting the luminous flux reduction. Lifetime forecasting is performed based on measuring the operating luminous flux reduction within a time frame of at least 6000 hours, every 1000 hours, followed by extrapolating the obtained results with a relevant exponential curve. This article presents the results of measurements of luminous flux changes taking place between 0 and 10,000 operating hours of several LED light sources. The obtained results were analyzed, and the lifetimes of the examined lamps were evaluated.
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(Scientific Journals Maritime University of Szczecin, Zeszyty Naukowe Akademia Morska w Szczecinie, )For many years, satellite systems have seen widespread use in a variety of technical applications, as well as in operations related to setting-out and the exploitation of track infrastructure. Their main applications include an inventory of the trackage course and detecting changes in its position. In both of these tasks, the most important element that determines the quality of an analyses is the high accuracy of the determinations being carried out. Satellite surveying techniques are not always sufficiently accurate, and in such cases, it is necessary to employ other land surveying methods to process surveying data. This article presents the authors’ considerations with regards to the possibility of applying one of the most common land surveying adjustment methods, the parametric method, to operations related to an inventory of tram infrastructure in Gdańsk. The results are based on surveys carried out during a surveying campaign in the autumn of 2018. The considerations presented in the article concern a small part of the research conducted under project No. POIR.04.01.01-00-0017/17 entitled “Development of an innovative method for determining the precise trajectory of a railborne vehicle” which is being implemented by a consortium of Gdansk University of Technology and Gdynia Maritime University.
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(Scientific Journals Maritime University of Szczecin, Zeszyty Naukowe Akademia Morska w Szczecinie, )The identification of navigational risks of accidents in fairways is a basic principle for the construction or modernization of waterways in restricted waters and when the conditions of safe operation change. The estimation of navigational risk requires the evaluation of the consequences of accidents occurring in fairways: grounding, impact against a vertical shore, port/offshore structure or moored ship. When determining the consequences of these accidents, it is necessary to know the emergency maneuvering area and the speed of the ship at the time of the accident. The method of ship movement simulation in real time was used to determine the parameters of emergency maneuvering areas and the speed of vessels during the maneuvers. The results of the simulation experiment include full form vessels (bulk carriers, tankers) with a capacity ranging from 5,000 DWT to 100,000 DWT. The presented results of simulation tests enabled the evaluation of probability and consequences of ships’ accidents in fairways resulting from technical failures of ships’ steering equipment, allowing to assess the navigational risk for ships sailing through different types of fairways (approach channels, port entrances and inner port fairways).
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(Scientific Journals Maritime University of Szczecin, Zeszyty Naukowe Akademia Morska w Szczecinie, )The main aim of this article is to present a method to process Inland AIS (automatic identification system) data that is part of RIS (river information services), as well as to synthesize and visualize information obtained from it for further analysis. This article presents problems with imaging the position of inland navigation units in the immediate vicinity of the Długi and Kolejowy Bridges in Szczecin. The passing of 80 inland units on this section of the Western Oder River was analyzed. Data were obtained from the AIS message database and industrial cameras of the RIS Monitoring Centre at the Inland Navigation Office in Szczecin. 35 units were equipped with AIS messaging devices. This article analyzed the data after previous processing, which consisted of selecting appropriate research units and decoding AIS messages recorded in the VDM message type (VHF Data Link Message). Then, the acquired positions of inland navigation units on the map were visualized to calculate the number of errors and their location. The obtained data were used to illustrate the locations of interference during the operation of transmitter-receiver equipment that prevented determining the exact position of inland navigation units in the immediate vicinity of the above-mentioned bridges.
