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  • Dylewski, Robert; Adamczyk, Janusz; Zarębska, Joanna (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2012)
    The article proposes the manner of determining ecological benefits, which result from thermo insulation of the external walls of the building. In order to assign environment load the technique of life cycle assessment LCA was used, including the division into three damage categories: human health, ecosystem quality and raw materials. The production of thermo insulating materials causes the increase of the environment load, but in the thermal phase of the building usage the negative impact on the environment is reduced due to the reduction of energy demand necessary to heat. A few dozen of thermo insulation variants were examined, depending on the kind of wall, heat source and thermo insulating material. For all cases the analyzed investment turned out to be cost effective in terms of ecological aspects. In each damage category the reduction of the environment load was obtained. The ecological payback period was obtained within 0–5 years
  • Kazimierska-Grębosz, Marianna (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2012)
    The paper presents the problems of negative influence of high level of noise on the workers and the possibilities of application of portable acoustic screens for the protection of workers which are around of machines. In the paper the results of experiments with application of portable acoustic screens are compared with theoretical calculations based on known methods applied for the evaluation of effectiveness of screens
  • Chrzanowski, Janusz (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2012)
    Gradient procedure is suggested, which allows to fit multi-parameter theoretical model to multi-channel experimental data obtained by means of polarimetric measurements. Procedure deals with nonlinear system of differential equations that describe the evolution of an electromagnetic wave in a hot plasma and provides sufficiently fast convergence to stationary values. The procedure is illustrated with numerical calculations in the case of one and two measurement channels, that allow to retrieve two and four of plasma parameters respectively
  • Kizielewicz, Joanna (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2012)
    In the polish literature there is noticeable the lack of terminology of maritime tourism and its classification. This issue has been treated rather occasionally till now, without any deeply analysis of the basic definitions and concepts. The maritime tourism is variously defined by different sectors in various conutries, it means by: geographers, planners, experts of marine sector, tour-operators or ferry and cruising companies. In this light, it seems reasonable to try to sort out the basic terms and concepts. The main aim of this article is the analysis of the existing definitions and classification proposed in the literature of Polish and foreign languages. It is also made the critical analysis of these definitions and concepts. The value added of the article is the attempt to define maritime tourism by the author. Moreover, the author shows a list of criteria that could be implemented in the statistical researches of demand in the maritime tourism sector and possible forms of maritime tourism. The researches were realized using a method of desk research, a critical analysis of the available literature and comparative analysis
  • Klyus, Oleh (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2012)
    In the paper some results of experimental works on increasing of effective and lowering of toxic parameters in Diesel engines with combustion chamber type of Ricardo Comet Mrk V. Were presented possibility of receipt of this factors is using of preliminary fuel treatment – as contact fuel with catalytic materials in a body of fuel injectors. The results of experimental works confirm the perspective of this idea
  • Koszałka, Grzegorz; Olejnik, Krzysztof (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2012)
    The interviews conducted with the drivers and analysis of possible sources of collisions and accidents show that at night, on unlit areas, truck drivers towing trailers or semitrailers have insufficient observation area around the vehicle. This insufficient amount of information reaching the driver is the cause of many accidents and collisions. The article describes the risks associated with the lack of visibility of the area around the semitrailer and presents solutions allowing to reduce the identified risks. The solution is to use additional contour lights, and lights illuminating the road in the area, which is run over by the semi-trailer wheels. Based on the simulation studies and laboratory studies of light distribution, the appropriate lamps have been selected and installed on the trailer. Then the field tests were carried out on the real object, which confirmed the usefulness of the proposed lamps and showed that it is possible to support the vehicle driver in obtaining information from areas previously invisible
  • Matuszak, Marcin; Waszczuk, Paweł (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2012)
    The paper describes micromilling machine and implemented sensor system for microcutting operations. Sensor system can be used for cutting forces, accelerations, acoustic pressure and tool displacements measurement. Cutting forces and accelerations signals were used for cutting depth, hardness of workpiece and excitation frequency of rotating tool monitoring. Other signals obtained during experiment will be used in further work. Conclusions arising from performed experiment and further research plans are presente
  • Pietrzykowski, Zbigniew; Wielgosz, Mirosław (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2012)
    The ship domain is one of the criteria proposed for the safety of ships in restricted areas. Its shape is influenced by many factors. The paper presents the results of ship domain determination in a restricted area. The influence of ship speed on the shape and size of the domain was examined. The method of determining ship domain based on ship traces and partial domains was characterized. The results have been presented and conclusions formulate
  • Banaś, Paweł (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2012)
    Automatic communication between computer systems on board and ashore is a necessity. At this stage it is limited to simple exchange of information – the data transmitted in the messages. It is expected that it will take the more complex form soon, allowing the dialogue, the transmission of intentions and conducting negotiations. To make it possible, it is necessary to build suitable ontology, describing the processes of communication at sea. To apply this ontology in information systems it is necessary to present it in a proper representation. This paper presents a method of generating a representation in form of XML-Schema based on the ontology built with the use of Protégé program
  • Breitsprecher, Marcin (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2012)
    The article presents the problem of knowledge representation contained in COLREGS for its use in navigation information systems. The idea of knowledge and representation of knowledge was discussed. A comparison of selected methods of knowledge representation was made and possibility of their use to represent the COLREGS rules was considered. By using selected COLREGS rule and presented methods of knowledge representation, functionality of the knowledge base was analyze
  • Brzózka, Jerzy (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2012)
    The paper presents a designing procedure of controllers in the structure of tracking model (Model Following Control, MFC) for nonlinear model of a ship as an object of the course angle control. In the article feedback linearization method for known nonlinearity in the input-output channel of plant has been used. Ideal linearization in the classical control system occurs only when the design nonlinearity of the model and the object are identical. Therefore, the article proposes the use of MFC structure, which is able to compensate for differences of non-linear characteristics of the process and model
  • Czaplewski, Krzysztof; Czaplewski, Bartosz (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2012)
    In order to maintain a high level of security in areas where vessel traffic services operate, there is a great use of industrial cameras, which transmit information to the VTS controllers. Two very important elements of the video image transmission are speed and confidentiality of the transmitted data. Currently, one of the major problems in front of such systems is to choose an appropriate method for safe image transmission that meets the requirements of speed and confidentiality. There is the possibility of using the tools of computer science known as fingerprints. There are two ways to protect multimedia copyright. First way is to encrypt the data. Encryption provides that only privileged receivers with correct decryption keys will be able to decrypt information. Unfortunately, encryption isn’t sufficient protection, because after decryption, privileged user may easily violate copyright by sharing decrypted data with public. Second way is called a digital fingerprinting, which rely on embedding of some additional binary sequence into image. This sequence, called a fingerprint, is unique for each receiver and it’s unnoticeable for the human eye. With fingerprinting there is a possibility of further analysis of a intercepted copy which is suspected of being illegally shared. The paper presents the theoretical basis for the use of fingerprinting methods to protect the media sent in VTS systems, as well as a description of the most promising methods, in terms of safety and cost, called Joint Fingerprinting and Decryption methods. Approach proposed by the authors can enhance the security of the video image transmission in VTS systems
  • Girtler, Jerzy (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2012)
    The paper rises the issue of a possibility to consider some achievements of the quantum mechanics in the diagnostics of marine energy machines and devices. It has been shown that the observations from the quantum mechanics and technical diagnostics obtained in the knowledge field of the empirical research are convergent. The need has been justified as for empirical research to make not only calculations of errors, but also to determine the uncertainty of test results (measurements) and identify whether they are mainly the result of inaccuracy of energy machines / devices as the research objects – or inaccuracy of the measuring technique (measuring methods and means). Moreover, the possibility of using mathematical statistics has been presented for describing the results of the studies connected with determining the instantaneous values of the measured quantities. It has been shown at the same time the necessity for the empirical research of a clear definition of the instantaneous value characterized by two coordinates: a measured value of a physical quantity and a value of time which the measured value of the physical quantity is assigned to
  • Siódmiak, Szymon; Górtowska, Marzena; Górtowski, Paweł (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2012)
    Effective maritime rescue bases on both surface units and aviation. The different types of units are selectively chosen according to their performances. The main operational limitations of a particular unit are weather conditions and vehicle characteristics. In addition to standard units, for purposes of search and rescue, a WIG craft is also applicable. The craft uses so called Ground Effect, therefore is characterized by relatively high speed and low fuel consumption. The article attempts to determine the statistical operational effectiveness of different search and rescue units. The analysis is based on data on wind force and direction, in the period from May to October, in the west coastal zone of Poland. The results of the study allow to compare operational effectiveness of various rescue units. The findings can be used to support planning of search and rescue forces’ dislocation and their efficient use
  • Gucma, Stanisław (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2012)
    The article describes the method of the determination of optimal parameters of the approach channels leading to the outer port in Świnoujście assuring safe navigation of LNG tankers of Q-flex type. The method used was specially developed for optimized design of waterway systems. Conditions of safe vessel operations within the system were define

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