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Scientific Journals of the Maritime University of Szczecin,
Zeszyty Naukowe Akademii Morskiej w Szczecinie



 

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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

Recent Submissions

  • Chybowski, Leszek (Scientific Journals Maritime University of Szczecin, Zeszyty Naukowe Akademia Morska w Szczecinie, )
    Dear Readers, It is my great pleasure to present the 48th issue of the Scientific Journals of the Maritime University of Szczecin. This issue features recent findings from the fields of marine engineering, sea navigation as well as waterborne and land transportation. The Marine Technology and Innovation studies address fire safety, modelling the work of marine systems such as steam boilers and dynamic positioning systems, the use of liquid fuels and selected methods for constructing an ontology for automatic communication at sea. The Navigation and Marine Transport section contains articles focussed on the use of integrated marine navigation systems, optimising sea routes, analysing vessel domains and stochastic simulations for analysing the course of search and rescue missions at sea. The Transportation Engineering section contains studies examining inland waterway shipping, road infrastructure in the European Union as well as optimising parameters of port areas. The article discussing a theoretical framework for controlled pyrotechnical reactions as an energy source constituting a component for transportation from the sea bed deserves particular attention. I am also very pleased to announce that that our quarterly has been indexed by Global Impact Factor (GIF), an international database of scientific journals. The quality of the Scientific Journals of the Maritime University of Szczecin has been assessed using an in-depth analysis method to provide a Global Impact and Quality Factor. The journal’s scores for the last for years are as follows: 2012 – 0.415; 2013 – 0.528; 2014 – 0.780; 2015 – 0.854. This clearly reflects the increasing quality and standard of the work published by the journal, indeed our scores have increased by 61.7% over the last 2 years. I strongly invite authors to submit their articles and encourage readers to provide feedback. Access to the online version of this issue and previous issues is available at http://scientific-journals.eu/. Leszek Chybowski, DSc PhD CRP Editor-in-Chief
  • Hatłas, Paulina; Pietrzykowski, Zbigniew (Scientific Journals Maritime University of Szczecin, Zeszyty Naukowe Akademia Morska w Szczecinie, )
    Automatic communication can help reduce errors in communication between navigators, and, consequently, increase the level of navigation safety. This article reviews some methods for the development of an ontology and looks into processes for communication at sea. Three basic elements of ontology can be distinguished: navigational information, communication and interface. The possibility of applying these methods for the construction of ontology was analyzed for a system of automatic communication at sea.
  • Kamiński, Włodzimierz; Krause, Paweł; Gumiński, Dariusz; Rajewski, Przemysław (Scientific Journals Maritime University of Szczecin, Zeszyty Naukowe Akademia Morska w Szczecinie, )
    The quality of marine fuels is standardised by the international standard ISO 8217. As practice shows, even fuels that meet all standard requirements do not completely guarantee avoiding disruptions in smooth and safe operation of the ship. The future is likely to bring more cases of improper operation of vessels, sometimes leading to main propulsion failures. One cause behind main engine breakdowns is the introduction of new products on the fuel market that are intended to meet the ever-increasing requirements of environmental protection (e.g. low sulphur content). As a result, some fuels are chemically different from the previously used residual fuels. Using them in the engine room requires special care on the part of the ship owner and the ship’s crew. The article analyses two cases in which the use of conventional residual fuels resulted in main engine stoppage. The authors, bearing in mind the causes of those failures, focus on technical consequences of using marine fuels produced by currently employed technologies.
  • Łuszczyński, Daniel; Zeńczak, Wojciech (Scientific Journals Maritime University of Szczecin, Zeszyty Naukowe Akademia Morska w Szczecinie, )
    This article presents an overview of the mathematical models applied for the description of the pneumatic transportation of grain materials. Thus the model that has been selected is best suited for the description of the pressure drop in the pneumatic transport installation of solid fuel for a ship boiler. The research conducted allows for verification of the hypothesis that the ship’s motion is of minor importance and therefore it is possible at the design stage to apply the simplified model to determine the pressure losses in the installation.
  • Miller, Anna (Scientific Journals Maritime University of Szczecin, Zeszyty Naukowe Akademia Morska w Szczecinie, )
    The procedure of Linear Incremental Model (LIM) identification requires input and output signal deviations as opposed to their actual values. When considering a vessel as a plant, the sequence of input signals determines the traceability of the estimated LIM. The manual input signals selection procedure is a demanding and time consuming empirical procedure. In order to increase the speed of object identification and to eliminate input-output signal sequences which give unreliable data, an incremental linear model identification algorithm was developed and is presented. Moreover, the method of parameter selection for input signal pseudo-random sequences is described in this paper. Emphasis is placed on the practical aspect of astatic objects – ship’s LIM creation and input-output signal deviations selection method.
  • Nozdrzykowski, Krzysztof (Scientific Journals Maritime University of Szczecin, Zeszyty Naukowe Akademia Morska w Szczecinie, )
    The results of tests presented herein can have practical applications for the adjustment of rotary speed to ensure constant contact between the measuring sensor’s spindle tip and the crankshaft journal of a piston energy converter, whose roundness profile is being measured. Analytical considerations have been supported by the results of simulations as well as experimental tests. The research has also shown that an increase in rotary speed affects the obtained profile shape and the value of determined roundness deviation.
  • Szelangiewicz, Tadeusz; Żelazny, Katarzyna (Scientific Journals Maritime University of Szczecin, Zeszyty Naukowe Akademia Morska w Szczecinie, )
    When designing a transport vessel, one of the most important parameters assumed by the owner is the service speed of the ship. Service speed and motor power are calculated as an approximation of the ship’s speed in calm water (i.e., the contract speed) with the addition of the sea margin (SM). In current design practice, the addition of SM is not dependent on weather parameters occurring in liner shipping. This paper proposes a new method for establishing the value of SM depending on the type and size of the vessel and the average statistical weather parameters occurring on various shipping lines. The results presented in this paper clearly demonstrate that further research is needed to determine the precise relationship between the shipping and vessel type and the weather parameters on a shipping line.
  • Ubowska, Agnieszka; Szczepanek, Marcin (Scientific Journals Maritime University of Szczecin, Zeszyty Naukowe Akademia Morska w Szczecinie, )
    This article discusses requirements for the extinguishing systems in the engine room. The sources of fire hazards in engine rooms were characterized. The causes and consequences of selected engine room fires that occurred within the last five years were presented. The basic requirements for the fire-extinguishing systems installed in engine rooms were scrutinized. The most commonly used fire-extinguishing systems in engine rooms are the ones containing a gaseous extinguishing agent. Their main advantages are short response time after agent release and the ability to supply an extinguishing medium to areas that are hard to access. The agent used in such systems does not cause damage and there is no need to remove its residues after fighting the fire, as in the case of other agents such as foams. As an example, a CO2 system was characterized, as it is the most frequently used in engine rooms.
  • Zalewski, Paweł (Scientific Journals Maritime University of Szczecin, Zeszyty Naukowe Akademia Morska w Szczecinie, )
    Vessels conducting dynamic positioning (DP) operations are usually equipped with thruster configurations that enable the generation of resultant force and moment in any direction. These configurations are deliberately redundant in order to reduce the consequences of thruster failures and increase the safety. On such vessels a thrust allocation system must be used to distribute the control actions determined by the DP controller among the thrusters. The optimal allocation of thrusters’ settings in DP systems is a problem that can be solved by several convex optimization methods depending on criteria and constraints used. The paper presents linear programming (LP) and quadratic programming (QP) methods adopted in the DP control model which is being developed at the Maritime University of Szczecin for ship simulation purposes.
  • Boć, Renata; Marcjan, Krzysztof; Przywarty, Marcin; Gucma, Lucjan (Scientific Journals Maritime University of Szczecin, Zeszyty Naukowe Akademia Morska w Szczecinie, )
    This article presents the underlying concepts of a mathematical model optimizing the routes of vessels carrying dangerous goods proceeding in the vicinity of passenger ferries. The method is based on the estimated risk of collision between a chemical tanker and a passenger vessel. Risk assessment was performed using three models. The first model determines the distance of the passing ships on the selected area on the basis of the AIS data. The second one is a stochastic model of navigational safety assessment, which provides statistical data on the probability of collision between the two chosen types of vessels. The third model determines the consequences of collisions between passenger ships and chemical tankers. The study defines the scope of the parameters affecting the objective function of vessel route optimization and their importance in the optimization problem

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