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35 Scientific Journals of the Maritime University of Szczecin, no. 35 / 2013



 

Recent Submissions

  • 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
  • Jaśkiewicz, Marek; Sadkowski, Wojciech; Marciniewski, Mateusz; Olejnik, Krzysztof; Stokłosa, Józef (Scientific Journals Maritime University of Szczecin, Zeszyty Naukowe Akademia Morska w Szczecinie, 2013)
    The article sets forth the new concept of structure of the Stirling engine. Specific realizations of that idea have been discussed. The modification consists in replacing the crank system with the cam mechanism. As a result, the stages of heating and cooling of working gas are longer and transitory stages are shorter. The aim is to obtain higher efficiency in relation to the already existing solutions and to simplify the engine structure. The visualisation of its structure and the principle of operation have been presented. The proper shaping of the cam mechanism allowed for the change of the significant parameters influencing its efficiency. The use of such type of engine allows for the use of heat energy lost in many technological processes and installations.
  • Cepowska, Żaneta; Cepowski, Tomasz (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2013)
    This paper presents innovative software “Egzamin” for examination used in Post-Secondary Maritime School in Szczecin. Presented software, unlike other similar programs, allows the assessment of student skills based on the task as a test of closed and open. The software is based on a databases working in the computer local network. The software is allowed to backup all exams including student’s personal data, evaluation of all responses and time taken to solve each task. The software can also be used in e-learning
  • Cepowski, Tomasz (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2013)
    The paper presents an innovative computer programs “Kalkulator” and “Sekwencja” for planning and simulation of cargo handling operations and the exchange of ballast water for bulk carrier B-517 series. The software is designed to develop and simulate particular loading stages based on the loading programs or water ballast exchange plans. The programs presented in article show new trends in development of loading calculators
  • Jaśkiewicz, Marek; Jurecki, Rafał; Witaszek, Karolina; Więckowski, Darek (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2013)
    This article is a description of the construction of dummies used in crash tests of vehicles. Dummies are classified according to their use in different types of crash tests. The noticeable improvement in the construction of dummies, their properties and similarity to humans man, is clearly visible referring to first dummies with modern ones
  • Jurecki, Rafał S; Jaśkiewicz, Marek; Zuska, Andrzej (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2013)
    The following article presents a brief overview of research regarding driver behaviour in simulated situations of accident risk. The research carried out within a research work N N509 549 040 included an accident situation involving the sudden intrusion of a pedestrian into the road area from behind a curtain either from the left or right side. This paper presents and analyses a variety of registered driver behaviours to simulated risk accident situations and drivers’ reaction parameters
  • Juszkiewicz, Wiesław; Muczyński, Bartosz; Gucma, Maciej; Bilewski, Mateusz (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2013)
    The following paper describes functionality of navigation systems interfaces in the newly developed shiphandling simulator for the inland navigation (called InSim) at Maritime University of Szczecin. It is based on analysis of radar interface and conning touch screen that has been designed for the simulator
  • Karganov, Sergey A. (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2013)
    A country’s economic growth is not possible without production growth. However, the evaluation of the economic growth so far has failed to correctly reflect forthcoming economic processes. Improper assessment of economic results has led to the inflation rise and unemployment increase. The use of the method recommended in this paper would enable to avoid that negative effect
  • Karganov, Sergey A. (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2013)
    It is indisputable that the main conditions for acceleration of the national economy growth involve an objective evaluation of the contribution of innovative projects to the increase of national wealth (NW) of a country and recognizing those contributions as income of science and technology enterprises. This paper on the basis of a specific example presents the grounds for the justification and a methodology of determining a market price of an R\&D project, the economic effectiveness of scientific and technical activities, as well as the contribution of such activities into raising country’s national wealth (NW)
  • Kizielewicz, Joanna (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2013)
    Cruise ship tourism is an important segment of the maritime tourism market. “Cruising, according to CLIA (Cruise Line International Association), is one of the safest, most affordable and enjoyable vacation experiences available today and the industry continually reviews best practices and develops innovative technologies to further strengthen its safety record. A record 20 million – plus global passengers went on a cruise in 2012” [1]. In addition, this branch of industry has also generated thousands of jobs at sea and in the ports of calls and has brought huge incomes for local economies in visited tourist destinations. The main objective of this article is to assess the state of development of cruise ships tourism in Poland. In the first part of the article, there are included analysis of the number of cruise ship calls and passengers and there were also presented the largest cruise vessels that have visited seaports in Poland. There is also described the state of preparation of the seaports in Poland to support cruise ships. Moreover, there are also discussed the scope of services of the seaports in Poland, offered to ship-owners and a range of fees which must be borne by them. In addition, there are presented entities involved in handling of cruise ships while staying at the seaports. The article ends with a summary where it was indicated, inter alia, the reasons for the decreasing trend in the number of calls of cruise ships in Polish seaports
  • Klyus, Oleh; Kordakov, Aleksandr; Behrendt, Cezary; Rajewski, Przemysław; Szczepanek, Marcin; Bezyukov, Oleg; Kordakov, Aleksandr (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2013)
    The article presented non destruction method and results of using thermal method in diagnostic of marine plant operation of fishing fleet vessel
  • Klyus, Oleh; Klyus, Igor (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2013)
    The article presented the results of the reduction of nitrogen oxide in exhaust gases of Diesel engines used in fishing boats and vessels. For this purposes was used preliminary fuel treatment that takes place directly in the fuel injector and mixture of Diesel oil with water
  • Korostil, Yury; Korostil, Olga (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2013)
    Methods of extension of abilities of semantic analysis of text models by introduction of additional semantic parameters, which come out of basic semantic parameters are researched. The structural components of models are reviewed and they are a base on which methods of extension of abilities of of text models analysis are researched. Basing on use of structural components of text models external semantic parameters are introduced, which also extend abilities of analysis of those models
  • Łubczonek, Jacek (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2013)
    Observational sensors, such as CCTV cameras and radars, are part of the RIS system. These sensors should provide information about the current situation on the waterway and to a greater extent – aquatory. Barriers for the observational sensor, in the sense of reducing the view field, are various objects in the aquatory. This is one of the main factors that make it difficult to determine the proper location of the sensor. Currently, in order to increase the efficiency of determining the locations of the observational sensors are used different tools for performing spatial analysis. This applies to both the initial geographical identification as well as detailed analysis. Analysis efficiency, in turn, depends on the model of the environment, represented in the form of the Digital Surface Model. Given the complexity of some geographic features, it should be used the appropriate methodology for the visibility analysis, as well as the preparation of the input material. The following work includes the theme of visibility analysis on inland waters, with special emphasis on the complex objects. They include bridges, cranes, buildings, high vegetation and other engineering structures
  • Munjishvili, Tea; Kharabadze, Elena (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2013)
    The management problem is especially important due to the risk of enterprise bankruptcy under a market economy. Management by a business risk and to economic stability and safety of enterprise. Now, different methods are used in order that to prevent enterprises’ bankruptcy on the basis of prognoses and safety of risk methods, among from that, maybe, would be marked the following to those: method of DuPont, model of Altman, model of Olson, statistical methods well-known as the “Winnings” methods. The practical use of these models gave us a high result in case of small and middle enterprise. In every model the used discoveries are undertaken from the documents of the official financial reporting. The article analyzes mathematical methods and algorithms used to evaluate financial stability of an enterprise, such as the Altman Z-Score model. The models are designed to evaluate enterprise bankruptcy risks. The central concept is evaluation of the enterprise bankruptcy risk and presentation of an automated risk calculation system
  • Nozdrzykowski, Krzysztof (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2013)
    The author presents the results of research aimed at determining the best conditions of supporting large and elastic machine elements such as crankshafts. A number of simulation tests were performed with variable shaft support conditions changed using the author’s system of elastic support of crankshafts. The selection criteria were established for support parameters. Meeting these criteria guarantees that shaft elastic deflections and strains are eliminated. Consequently, such strains will not affect the estimation of geometrical deviations of the measured object
  • Nozdrzykowski, Krzysztof; Bejger, Artur (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2013)
    This article discusses possible applications of correlation calculus as a universal tool enabling verification of a procedure for correct selection of elastic support system. Such system is used in measurements values of roundness deviations of main crankshaft bearing journals and assessment of shape correctness of measured roundness profiles. These profiles can be mathematically represented as a sum of terms of a Fourier trigonometric series
  • Pawlak, Andrzej (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2013)
    The article discusses criteria for the assessment of exposure to visible radiation (blue light), methods of measurement of radiation exposure and hazards during welding. Then, the author presents the results of measurements of exposure to visible radiation in the electrical and gas welding. Based on the results of these measurements the occupational risk for the studied positions has been determine
  • Ranachowski, Zbigniew; Pawełek, Andrzej; Jasieński, Zdzisław; Piątkowski, Andrzej; Jr., Stanislav Kudela; Lewandowski, Marcin; Mazuruk, Paweł (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2013)
    The paper deals with the problems related to the diagnostics of selected parts of modern Diesel engines. The evolution of mechanical properties of four alloys of Mg-Li-Al system and four composites made on the base of the alloys mentioned above, caused by variation of its composition was presented. The Acoustic Emission (AE) method applied to monitoring of degradation of mechanical properties of the alloys and composites was described. Moreover, the results of the investigation of failures occurring in the injectors of Common Rail Diesel engines performed with the application of AE method were also reporte
  • Švarcburg, L.E. (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2013)
    The paper shows that the low energy efficiency exploitation of technical systems to a large extent determines their negative impact on the environment and humans. On the basis of the energy balance equation shows that the decrease in efficiency due to the loss of energy during its conversion and the transmission and power factor with reduced electrical devices technical systems. Reduced power factor due to the fact that the technical system operation the power consumption of the drive motor on the shaft of these systems much less than its nominal value. Loss of energy and reducing power factor leads to contamination of the environment and reduction of human security in the operation of technical systems. The most effective way to improve the energy efficiency of operation is to improve the power factor by compensating the phase shift, which reduces the current consumption due to compensation of the reactive component of it. Experimental research in machine tool technology systems have shown that the application of the method of compensation of phase shift can significantly improve the energy efficiency of the operation of these systems. This significantly reduces the amount of power consumption, the value of its reactive component and the input current and greatly increasing the power factor of technical systems in their operation
  • Szelangiewicz, Tadeusz; Żelazny, Katarzyna (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2013)
    While the ship is sailing on waves the relative motions occur which result in propeller emergence, and as a consequence – propeller thrust reduction which results in a decrease in the ship’s speed. Propeller emergence is also accompanied by the decrease in torque values, with which the propeller affects the propelling engine. The article presents both calculation results and the algorithm for calculating the decrease in torque of the propeller during ship motion on a regular wave
  • Szelangiewicz, Tadeusz; Żelazny, Katarzyna (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2013)
    When a ship is saling on waves the relative motions occur which result in propeller emergence, and as a consequence – propeller thrust reduction which results in a decrease in the ship’s speed. Propeller emergence is also accompanied by the decrease in torque values, with which the propeller affects the marine engine. The article presents both calculation results and the algorithm for calculating the decrease in torque of the propeller during ship motions on irregular wave
  • Tuński, Tomasz (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2013)
    There were many changes of ways of operation of low-speed long-stroke marine Diesel engines powering ships introduced last years. Their range of continuous low load operation has been significantly extended. That changes exerted a great influence on operating condition of equipment connected with engines, particularly waste heat boilers. The bellow paper deals with adjustment of water level in smoke – tube exhaust gas boiler depending on real operating condition of the ship powered by the marine slow-speed longstroke Diesel engine operated under the “Super Slow Steaming” program
  • Wawrzyniak, Natalia; Bodus-Olkowska, Izabela; Stateczny, Andrzej (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2013)
    Mechanically scanned imaging sonars (MSIS) are mainly used for detection of small objects or aiding in underwater navigation in limited area. Obtained images are detailed and, especially for not experienced user, they may give an impression of a photography. However, the acoustic method of acquisition of sonar data must be taken into account, as understanding observed scene is essential to properly interpret the data. To aid the process of image interpretation the reference data may be used. In this paper the application of bathymetric data to MSIS sonar images is proposed. To match high resolution of MSIS images the density of bathymetric data must exceed the requirements of S-44 IHO norm. For this research a swath bathymetric system based on phase interferometry of acoustic signal was used to obtain such data in shallow waters. The article covers the motivation of usage of such data in comparison to other existing bathymetric systems. The proposed method uses acquired data to create additional channel in sonar image emphasizing sea-bed gradient in relation to sonar head position and distinguish invisible / shadowed areas. Proposed method is based on directional derivative of a sea-bed. Method presented in this article is a part of bigger research on enhancing interpretative potential of stationary sonar images [1]
  • Wiśnicki, Bogusz (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2013)
    In the paper the concept of the system of inland shipping connections to the proposed deep-water Container Terminal Świnoujście is presented. In the introduction argumentation for the container terminal in the port of Świnoujście investment is given. The terminal is briefly described in terms of its infrastructure and operating assumptions. In the next part, the determinants that affect connections between sea container terminal and its hinterland are discussed. The most important part of the work is devoted to the characteristics of the planned inland shipping connections, including: a description of the units, routes and organizational-economic assumptions. The work ends with conclusions that contain a description of the potential sea-land transport chains passing through the Container Terminal Świnoujście
  • Włodarczyk-Sielicka, Marta; Bodus-Olkowska, Izabela; Stateczny, Andrzej (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2013)
    Digital hydrographic products include the ENC Electronic Navigational Charts and the IENC Inland Electronic Navigational Charts used for inland shipping. The process of IENC production comprises data acquisition and editing. Each object belongs to a class specified in the applicable standards and possesses necessary attributes. IENC cells include, among others, data related to depths in a given water body. Contemporary bathymetric measuring systems allow for saving more and more data of increased quality. Examples of systems characterized by the ability to acquisition high density data are interferometer systems. The authors of this article used GeoSwath Plus 250 kHz sonar system to collect bathymetric data. Bathymetric data included in the IENC cell should be up to date, structured and easy to manage. A piece of software by the ESRI Company, also dedicated to creating hydrographic products, allows to do just that. The authors have used a specialized geodatabase during the IENC production, which made managing bathymetric data easier. The article describes an analysis of the geodatabase’s functionality during the production of electronic navigational chart for inland shipping
  • Zaborowski, Tadeusz (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2013)
    This paper presents the results of the formation of the surface layer hardness, roughness and size of retained austenite after the process of grinding the gear teeth. It has been shown that not only are changed stereometric the surface layer but also in its mechanical properties

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