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Browsing by Title: 27 Scientific Journals of the Maritime University of Szczecin

  • Kotowicz, Janusz; Bartela, Łukasz; Michalski, Sebastian (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2012)
    In the paper the evaluation of applied solutions, as well as the operational parameters in context of achieved efficiency of steam cycle of a supercritical power plant was carried out. The analysis for the referred structure of a power plant was made. The thermodynamic computational model was created in GateCycle software. In the calculations, the basic assumption was the maintenance of constant gross power of power plant. For this purpose, in the model the flow of live steam entering steam cycle was changed. In the first step the assumptions for three cases of unit were determined. First of all, the variants differ from each other with live and reheated steam parameters. The parameters for the two examined cases can be regarded as possible to be currently achieved in a modern supercritical power plants, while the third case represents a perspective variant. Based on relevant data implemented into the computational model, the relevant results for quantities characterizing the operation of examined units were generated. Among others, in the analysis the values of following quantities were determined: steam cycle efficiency, gross overall efficiency and specific consumption of heat. In the paper the assumptions, as well as the results are shown in the form of tables. The conclusions from comparison of results for individual solutions are also formulate
  • Biały, Witold (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2012)
    Using the example of one section of a railway line, the effect of various factors on breaks in train service has been analysed. The types, number and duration of breakdowns, as well as their influence on both passenger and goods trains service have been specified. The traffic capacity of a railway line is related to the possibility of meeting the timetable, which is therefore affected by all breaks. It is very important to know the type of breakdowns, their number and influence on a railway line capacity as well as their causes
  • Niziołek, Konrad; Boczkowska, Katarzyna (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2012)
    This paper presents a part of the results of the research carried out by its authors in the framework of a research project “Analysis and evaluation of the level of adjustment of entrepreneurs and OSH specialists from the region of Łódź to the changes in legal provisions and in market needs”. In the framework of the project 200 OSH specialists professionally active in the region of Łódź were interviewed. The evaluation of the level of knowledge of OSH specialists and the analysis whether or not there are any differences in it depending on the level on which they obtained their vocational qualifications, on a secondary or on a tertiary level, was the main aim of this analysis
  • Biały, Witold; Bujanowska, Anna (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2012)
    The infrastructure management of the hospital requires apart from typical conditioning associated with managing a property, taking into account requirements put for individuals of the health care which medical technologies are being exploited. In the article a specificity of the technical infrastructure of the hospital was described, as well as problems resulting from the completion of processes of the infrastructure management were identifie
  • Burnos, Arkadiusz (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2012)
    The operation of vessels is more and more accurately monitored and collected information allows for rationalization of decisions related to maintenance of technical assets. The article defines a universal maintenance performance indicator (UMPI) using methods of numerical taxonomy. It was reviewed the purposes of use of performance indicators (KPI – Key Performance Indicators) and suggested to apply a universal indicator, connecting different groups of information and allowing ranking of technical objects according to multicriterial evaluation of maintenance performance. There is an example of application of universal indicator, which was calculated for a hundred of technical objects recognized by the vessel’s shipowner as critical in the system of operation. The results allowed to rank objects from the best to the worst maintained according to multicriterial evaluation. It was defined the direction for further research on a universal indicator of maintenance performance
  • Cupiał, Brygida Beata (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2012)
    In this article author – based on literature, documents and statistical data - attempted to analyze the problem of protection surface waters in Lubuskie in the context of the implementation of European Union policy. A review of concepts relating to the EU Water Framework Directive and integrated water management was made. Investment activities in the field of water and wastewater were compared with environmental data in order to obtain a synthetic evaluation of the scale of the province. In summary applied conclusions
  • Dylewski, Robert; Adamczyk, Janusz (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2012)
    In Polish conditions, one of the types of investments which bring financial benefits for the investor and also reduce the load of the environment is thermal insulation. This article shows how to make an evaluation of sample of investment, which is the thermal insulation of the exterior boundary walls, from the financial side. Indicators to assess the investment in ecological terms, using life cycle assessment LCA are also proposed. An analysis of different options depending on the thermal insulation was made. Analysis includes: properties of the exterior boundary walls against thermal insulation, the type of thermal insulation and type of heat source in the building
  • Hąbek, Patrycja (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2012)
    In this paper product safety issues were presented from the perspective of running a socially responsible company. The first part outlined the concept of corporate social responsibility (CSR). Then two initiatives related to this concept were presented, stressing the themes on consumer protection. Next the regulations and systems to ensure the health and safety of consumers were discusse
  • Kazimierska-Grębosz, Marianna (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2012)
    The paper presents the problem of high level of noise at workplace of operators of earthmoving machines and the problem of noise emitted by these machines to the environment. The paper presents also the basic information concerning the administrative methods of noise control like EU directives and regulations of the Polish authorities concerning noise level at workplace and the noise emitted to the environment. This paper shows the results of experiments on use of acoustic screens to lower the noise levels emitted during small earth moving machines operations. A significant damage of acoustic climate during road works was proven
  • Klyus, Oleh; Klyus, Igor (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2012)
    This article presents a mathematical model of the fuel flow turbulisation processes in fuel tubular injectors channels of compression ignition engines. As turbulisator, proposed the use of two or more intersecting channels on the surface of the needle made in the form of left and right threads. The main attention was paid to the use of acoustic resistance parameter in the mathematical description of physical phenomena, which allows verification of the proposed model in laboratory studies of fuel, and retardation research of compression ignition engines
  • Kołodziej, Sabina (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2012)
    In the article research analyzing the level of the economic knowledge of adult Poles was described. Analyzing both subjective, measured with the scale of self-assessment and objective, through the test of message, aspect of the knowledge to economic themes. The test included three groups of issues: 1) acquaintance of current economic indicators and selected public charges, 2) define basic economic notions, 3) understand the relation between individual economic phenomena. Obtained data shows, that the examined group of adult Poles has on the average level knowledge, however not-allowing to full understand principles of free economy market functioning
  • Białecka, Barbara; Łupiński, Zbigniew (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2012)
    On the basis of the conducted investigations and analysis of the hard coal quality assurance process, it has been found that new IT tools need to be introduced to support the process. The study presents a system developed by the authors, which has been implemented in hard coal mines to support product quality improvement
  • Maruszewska, Ewa Wanda (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2012)
    Contemporary enterprises when making business decisions must take many aspects into consideration. Many of them are of economic and legal nature, but some regard to environment issues. Ecology is an important factor taken into account when judging and positioning companies, and therefore owners and other stakeholders expect information about these aspects of business’ operations. Environment reporting is an important element of social accounting, which is linked to the idea of a sustainable development of enterprises
  • Midor, Katarzyna (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2012)
    The article focused on the role of quality control methods in designing and production processes, on the example of the automotive company, in providing a product’s parameters in accordance with a client’s requirements. Methods and tools used in a process of production, which are instruments controlling and diagnosing quality during production, were analyzed. Much attention was paid to SPC methods that statistically describe a production process
  • Mizgała, Jerzy (Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie, 2012)
    W artykule opisano dwa przypadki uszkodzeń dźwignika hakowego kontenerowego, które miały różne przyczyny, lecz doprowadziły do powstania takiego samego obrazu szkód. Wskazano, jakie czynniki mogą doprowadzić do ich powstania, a także, które rozwiązanie techniczne w układzie hydraulicznym powoduje powiększenie skali uszkodzeń

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