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  • Filipek, Wiktor; Broda, Krzysztof (Scientific Journals Maritime University of Szczecin, Zeszyty Naukowe Akademia Morska w Szczecinie, )
    The depletion of inland deposits of natural resources and the increasing demand for some raw materials have resulted in the growing interest in deep sea exploitation of natural deposits. This gives an impulse to the mounting research and development of methods of exploitation of natural deposits from the sea and ocean floors, which are not limited to petrol and gas. The main area of difficulty in opencast mining methods conducted at considerable depths is the transportation process from the sea floor to the surface. The methods employed so far, such as continuous line bucket (CLB), hydraulic pumping (HP) and air-lift pumping (ALP), have both advantages and disadvantages. The most salient problem is their considerable energy consumption resulting in great costs, hence the need for the development of less expensive methods. The authors have suggested a new method, involving the use of pyrotechnical materials as a source of energy in the transportation from the sea floor and have presented its theoretical grounding. Special emphasis has been placed on determining the depth to which the method can be applied and the energy needed in transportation in relation to the density of the transported substance (output).
  • Gucma, Stanisław (Scientific Journals Maritime University of Szczecin, Zeszyty Naukowe Akademia Morska w Szczecinie, )
    This article presents the optimized parameters of the Świnoujście seaport entrance and three-kilometer fairway linking Świnoujście and Szczecin, extended to allow the safe entry of 300-meter bulk carriers drawing up to 13.5 meters. The parameters were determined by a simulation-based optimization method, where the objective function and its constraint were, respectively, the reconstruction costs of that waterway section and the vessels’ navigation safety. The study made use of real-time simulation in coordination with the vessel’s human operator.
  • Kałkowska, Elwira (Scientific Journals Maritime University of Szczecin, Zeszyty Naukowe Akademia Morska w Szczecinie, )
    The aim of the present work is the influence of stray currents on transport systems, especially rail and city systems. Therefore, a study was conducted that simulated flow of stray currents on elements of the transportation system. Steel DOMEX, which has enhanced resistance to corrosion, was used as research material. It is rarely understood that transport systems can have reciprocal negative effects on each other. For example, the urban and long-distance rail transport systems influence the transmission systems (gas pipelines, information systems). A side effect of the functioning of railways is the formation of stray currents, which cause electrochemical corrosion in all undergrounded metal components. It has been demonstrated that the impact of stray currents on the metal parts is of corrosive nature, and their effects can be presented graphically and numerically. It has also been proven that the anodic potential causes a greater loss than the cathodic potential. Furthermore, the exposure to the elements, both in the process of corrosion and erosion, accelerates the destruction of the material.
  • Lewandowski, Piotr (Scientific Journals Maritime University of Szczecin, Zeszyty Naukowe Akademia Morska w Szczecinie, )
    New regulations enforced by the European Commission have greatly extended the possibilities to levy charges. The regulations include not only the TEN-T network, but also all motorways in Europe. The directive has given Member States the opportunity to charge heavy goods vehicles in a way to balance not only the costs of infrastructure but also those connected to noise and pollution caused by road traffic. The new provisions have enabled Member States to increase the charge during peak periods and to lower it in the off-peak hours in order to reduce traffic more effectively. The binding norms provide that the revenue from the charges should be destined to enhancing the stability of the transport section. The new rules provide a strong incentive to set aside new revenues from charging to finance certain types of transport projects. Poland has adapted very well to this new situation. The ever-increasing network of toll roads gives new opportunities for the development of transport. The increasing number of national and foreign hauliers guarantees constant investment in the development of road infrastructure and therefore a good use of the country’s geographical location.
  • Łozowicka, Dorota; Kaup, Magdalena; Machowski, Zbigniew (Scientific Journals Maritime University of Szczecin, Zeszyty Naukowe Akademia Morska w Szczecinie, )
    This article attempts to determine the rules for lawful use of floating objects for residential purposes. It presents the currently existing legal solutions applied in Europe for such floating structures. Further, the article describes a classification of residential floating objects from the legal perspective. The existing regulations are analyzed with regard to the provisions of the Water Law Act and the Inland Navigation Act. Moreover, the paper describes three different types of water usage, i.e. common, ordinary and special, and discusses in which of these forms the residential use of public waters falls. The analysis allows for the determination of the directions of further research, so that an accurate procedure ensuring a lawful use of houseboats can be adopted.
  • Wielgosz, Mirosław (Scientific Journals Maritime University of Szczecin, Zeszyty Naukowe Akademia Morska w Szczecinie, )
    This paper presents the problem of the “know-how” needed by the operators of vessel traffic supervision, monitoring, advisory and safety zone management systems required and maintained by marine navigators on their ships. The problem of the proper and correct interpretation of these systems is raised. Different types of ship safety zones, concerning both anti-collision and navigational purposes are presented, introducing the concept of hydrographic ship domain. Anti-collision and hydrographic domains were compared in order to establish mutual dependence. The factors influencing the two types of ship domains were analysed. The author proposed their merging and replacement with one universal domain, discussing its advantages and disadvantages. The analysis of the factors influencing the shape and size of such ship safety zones in conducted. The results in the different phases of research were presented and conclusions were drawn.
  • Afanasyeva, Olesya (Scientific Journals Maritime University of Szczecin, Zeszyty Naukowe Akademia Morska w Szczecinie, )
    This paper contains research on and methods of determining values for basic parameters of steganographic systems. In particular, a parameter of concealing the presence of information in a digital environment is researched. Using this particular parameter increases the degree of protection of a message introduced into a digital environment. This parameter is one of the fundamental ones in case of implementation of a steganalysis system. Besides that, this paper contains a review of parameters of redundancy of a digital environment and the parameter of steganogram resistance to technological transformations in digital environments.
  • Cepowski, Tomasz (Scientific Journals Maritime University of Szczecin, Zeszyty Naukowe Akademia Morska w Szczecinie, )
    This paper presents mathematical relationships that allow forecast of the estimated sale price of new container ships, based on data concerning vessels built in 2005–2015. The presented approximations allow estimation of the price based on deadweight capacity (DWT) or the number of containers the ship will carry (TEU). The approximations were developed using linear regression and the theory of artificial neural networks. The presented relations have practical relevance in the estimation of container ship sale price needed in transport studies or preliminary parametric design of the ship. It follows from the above that the use of artificial neural networks to predict the price of a container ship brings more accurate solutions than linear regressions.
  • Prill, Katarzyna; Szymczak, Marcin (Scientific Journals Maritime University of Szczecin, Zeszyty Naukowe Akademia Morska w Szczecinie, )
    This paper presents the development of a methodology for the identification of possible intentional threats and key ship operations that may be significant for a ship’s security assessment, carried out by a Company Security Officer. The applicable international and domestic legal regulations regarding ship security systems are here analysed. Key factors and parameters that may provide support for the proper identification of realistic threats are also identified, giving practical relevance to this paper. The information reported here may be of support to those responsible for the development and revision of a ship’s security assessment as it addresses an important part of the maintenance of navigational safety of ship operations under the provisions of the International Ship and Port Facility Security Code – ISPS Code.
  • Szymański, Maciej; Wiśniewski, Bernard (Scientific Journals Maritime University of Szczecin, Zeszyty Naukowe Akademia Morska w Szczecinie, )
    The results of testing the Bon Voyage system for an ocean voyage are presented in this paper. The main assumptions of testing were: ETD – 26.08.2016 and ETA – 05.09.2016, as established by the owner. All the data have been obtained from an actual voyage of a post-Panamax shipping container through the North Pacific. Testing was repeated again after completion of the voyage (post-voyage analysis). The data indicate that improved results with respect to fuel consumption could have been achieved using a different moment of second stage testing. Possible problems at planning, programming, and optimizing of the route leading through the ECA (Emission Control Area) zones with the use of onboard routing systems are also presented.
  • (Scientific Journals Maritime University of Szczecin, Zeszyty Naukowe Akademia Morska w Szczecinie, )
  • (Scientific Journals Maritime University of Szczecin, Zeszyty Naukowe Akademia Morska w Szczecinie, )
  • Galor, Wiesław (Scientific Journals Maritime University of Szczecin, Zeszyty Naukowe Akademia Morska w Szczecinie, )
    Omówiono badania związane z cumowaniem statków do planowanej przystani dalbowej w Świnoujściu. Celem badań było określenie dopuszczalnych warunków hydrometeorologicznych bezpiecznego manewru cumowania. Ponadto na podstawie badań symulacyjnych przy wykorzystaniu komputerowego modelu statku i akwenu wyznaczono energię kinetyczną uderzenia statków w przystań oraz punkty pierwszego kontaktu.
  • Gucma, Stanisław (Scientific Journals Maritime University of Szczecin, Zeszyty Naukowe Akademia Morska w Szczecinie, )
    Zaprezentowano nową metodą projektowania układu basenów portowych i nabrzeży, która nazywa się symulacyjną metodą optymalizacji układu dróg wodnych Jest ona znacznie nowocześniejsza i precyzyjniejsza od dotychczas stosowanych metod projektowania: klasycznej i symulacyjnej. Przedstawiono możliwości praktycznego zastosowania metody optymalizacji układu dróg wodnych przy projektowaniu na przykładzie przebudowy wschodniej przystani promowej w Świnoujściu.
  • Guziewicz, Jarosław (Scientific Journals Maritime University of Szczecin, Zeszyty Naukowe Akademia Morska w Szczecinie, )
    Przedstawiono analizę statystyczną manewrów cumowania statku w zakresie obsorbowanej energii kinetycznej uderzenia statku w nabrzeże. Analiza została Przeprowadzona na podstawie badań symulacyjnych wykonanych za pomocą komputerowego modelu ruchu statku stworzonego w Instytucie Nawigacji Morskiej WSM w Szczecinie. Wynikiem przeprowadzonych badań było przyjęcie modelu statystycznego, który w sposób najdokładniejszy reprezentuje badane zjawisko.

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