English Polish
Akademia Morska w Szczecinie

DSpace Home

DSpace/Manakin Repository

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



 

Creative Commons BY 4.0



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

  • Wojciech, Leoński (Scientific Journals Maritime University of Szczecin, Zeszyty Naukowe Akademia Morska w Szczecinie, )
    This article discusses issues related to the concept of corporate social responsibility (CSR) of Polish universities. The first part of the article presents the essence of CSR, and the next part focuses on the degree of involvement of universities in Poland in CSR activities. Afterwards, the CSR activities were grouped based on conceptual areas in accordance with the ISO 26000 standard. Moreover, the most popular socially responsible tools and practices at Polish universities were analysed. The main aim of the article is to present the level of corporate social responsibility and identify its main areas at the top 10 universities in Poland according to The Times Higher Education World University Rankings 2021. The article uses the literature query method and analyses and evaluates documents, reports, and websites. The research carried out at the top 10 Polish universities showed that all these entities are involved in socially responsible activities by taking into account social, environmental, and employee aspects in their activities. They are organizations that feel responsible for their activities and take into account the needs of their stakeholders, both internal and external.
  • Chłopińska, Ewelina; Tatesiuk, Jakub; Śnieg, Jakub (Scientific Journals Maritime University of Szczecin, Zeszyty Naukowe Akademia Morska w Szczecinie, )
    Environmental pollution is a growing concern for many organizations, commissions, state governments, and companies. The use of fossil fuels in transportation contributes significantly to increased emissions of harmful sulfur oxides (SOx) and nitrogen oxides (NOx). Maritime transport, as one of the largest emitters of such harmful compounds, has encountered many emission restrictions and legal limitations. These include the creation of areas of strict exhaust gas control (ECA). According to the MARPOL Convention, Annex VI, Special Emission Control Areas have been in force since 01.01.2015, and they include the following areas: the Baltic Sea, North Sea, North America (covering the designated coasts of the USA and Canada and portions of the Caribbean Sea near the USA). According to current regulations, vessels providing services in ECAs are required to maintain sulphur oxide emissions that do not exceed 0.1%. The introduction of new regulations results in costs that have to be covered by shipowners. To meet these standards, the two most popular methods are the use of special flushing systems (scrubbers) and low-sulphur fuels (e.g., LNG). This publication addresses the use of LNG as fuel for the main propulsion of sea-going vessels operating in areas covered by strict sulphur emission controls. It also presents LNG demand forecasts for various ship types, as well as possible solutions satisfying the Sulphur Directive. The purpose of this paper is to present a way to determine the size of the global demand for LNG. The percentage of vessels powered by LNG and other fuels was used as a basis for estimating global LNG demand in shipping until 2030.
  • Balandina, Iryna; Pysareva, Iryna; Obolentseva, Larysa; Vlashchenko, Nataliia (Scientific Journals Maritime University of Szczecin, Zeszyty Naukowe Akademia Morska w Szczecinie, )
    The COVID-19 pandemic and the strict anti-epidemic measures introduced by various countries have accelerated the transformation of tourism around the world. The industry has lost hundreds of billions of dollars and millions of jobs. At the same time, digital startups have entered the market, and new opportunities for individual tours and formats of international cooperation have appeared. Trends for modern travelers are widespread lowcost, p2p services for tourists, which exclude intermediaries from the supply chain and allow the creation of unique and personalized travel experiences. At the present stage of the tourism sector development, information technologies and software tools play an important role. Evolution and technological progress have penetrated the tourism market and the organization of excursion activities. For example, unique multimedia guides for mobile phones using GPS navigation have been developed for tourists. Historically, transport has been a fundamental component of the tourism sector and has allowed tourists to travel comfortably and quickly. Advantages and disadvantages of a trip throughout a city on a sightseeing bus are considered. In this paper, we analyze the most popular market software for mobile applications for navigating tourists during travel. Such applications are generally very popular due to a high level of modern societal mobility and the need for operational navigation, primarily in new urban spaces. The market is quite saturated with software from different manufacturers, and such high competition dictates requirements for functionality and services provided to a user; therefore, manufacturers are forced to expand additional services to increase their competitiveness. Tourists’ basic requirements for mobile applications on a trip were determined by tourist canvassing. Suggestions for improving mobile applications to navigate tourists on trips are provided, and special attention has been paid to creating the most comfortable and optimized excursion methods while taking into account tourist wishes.
  • Jakubowski, Andrzej; Dounar, Stanislau (Scientific Journals Maritime University of Szczecin, Zeszyty Naukowe Akademia Morska w Szczecinie, )
    The results of finite element analysis of large machined rotor fastened into heavy precise lathe are reported. Many design changes are simulated to improve the dynamic rigidity of the machining. Three radial eigenmodes detrimental to the accuracy were revealed: rotor-stock bending at 17.7 Hz (“half-wave”), rotor-lathe bending at 36.1 Hz (“full-wave”), and “support rocking” at 68.1 Hz. The frequency response functions and dynamic rigidities were evaluated. Three compliance issues were revealed: angular flexibility of the spindle console, low stiffness of the lathe bed (with boots), and an excessively slender tailstock. It is proposed to transform the spindle chuck into a table with additional hydrostatic backing, fill the bed cavities with concrete, and redesign the tailstock as a counter-spindle unit. This will decrease the amplitude of the main rotor resonance by 6.3 times and upshift the frequency near two-fold from 17.7 to 35 Hz. The renovated lathe should be able to machine a rotor without a lunette system or overriding the main resonant frequency.
  • Dembińska, Izabela (Scientific Journals Maritime University of Szczecin, Zeszyty Naukowe Akademia Morska w Szczecinie, )
    Dear Readers, We are pleased to present this year’s first issue (No. 65) of the Scientific Journals of the Maritime University of Szczecin. This year will bring many new challenges, also for the journal, where we continually focus on improved quality. We would like to thank the authors, reviewers and readers for their contribution to our journal. I hope that we will continue to develop this path together. This issue presents the research results and authors’ views in seven articles organized into three thematic sections: Civil Engineering and Transport, Mechanical Engineering, and Economics, Management and Quality Science. The Civil Engineering and Transport section features two articles. The first article presents an analysis of internal forces and roll motion during a nodule loading simulation for a ship at sea. The study carried out a full assessment of a ship’s behaviour during loading, which took into account wave height and period around the Clarion–Clipperton Zone by the use of an operational efficiency index. The second article addresses the International Convention for the Safety of Life at Sea (SOLAS). The Convention aims to improve the safety of life at sea by laying down rules and regulations for the construction of ships and providing models for the documents created. The Mechanical Engineering section consists of three articles. In the first article, the authors analysed the special configuration of a multi-role moving-column machining centre by the finite element method. In the second article, a CFD-based numerical approach was developed and applied to a trimaran hull in the presence of regular and irregular waves. According to the authors, the proposed CFD method reduces the simulation time and calculation resources needed to determine a ship’s motion. The third article presents the results of the testing of long-distance heat transfer surfaces in marine diesel engines, including elliptical and flat-oval tubes. The study used mathematical models that involved equations from conservation of energy, equations of motion, continuity and state, where the RSM of turbulence was also used to complete the equation system. The Economics, Management and Quality Science section includes two articles. The first article analyses the factors affecting the performance of VTS operators. Its general conclusion is that the effective work of VTS operators, combined with a specific maritime environment and vessel traffic management support system, are the key determinants for ensuring the reliability and safety of the entire system. The second article’s authors wanted to see if a multi-criteria analysis was appropriate for the evaluation and implementation of energy-efficient mobility in seaports. The multi-criteria model for the selection of the most appropriate energy-efficient mobility solution was tested for two Croatian private marinas. The articles featured in this issue reflect the authors’ theoretical and practical inspirations, contributing to important and state-of-the-art scientific research. We believe that these findings will become the basis for further reflection, discussion, and broader research.
  • Matusiewicz, Maria; Rolbiecki, Ryszard (Scientific Journals Maritime University of Szczecin, Zeszyty Naukowe Akademia Morska w Szczecinie, )
    A holistic approach and stakeholder consultation are necessary before implementing a particular city logistics measure. The need to implement sustainable urban logistics solutions is particularly important in seaports located in cities. Such cities, particularly Gdynia, have a high intensity of cargo flows resulting from transport connected with their port facilities. The purpose of this article was to identify the level of acceptance of sustainable and innovative urban logistics solutions by entities that use the services of the seaport in Gdynia. We investigated whether the proposed solutions found sufficient acceptance among the respondents, and which of the proposed solutions were the most preferred by stakeholders. We hypothesized that urban logistics solutions were not sufficiently accepted by the stakeholders of the seaport of Gdynia. In order to analyze the awareness of the involved parties, we surveyed parties at the Port of Gdynia as part of the Interreg project called TENTacle. Our findings did not support this hypothesis with respect to such measures as FQP, the use of interactive city maps, night deliveries, and the use of ITS, as these are the solutions most preferred by the stakeholders of Gdynia. The results of this study can therefore serve as an important tool for the city of Gdynia, and similar cities, when preparing sustainable urban logistics plans.
  • Barczak, Agnieszka (Scientific Journals Maritime University of Szczecin, Zeszyty Naukowe Akademia Morska w Szczecinie, )
    Transport is integral to every city, having a crucial impact on its functioning and development. As road infrastructure does not up to keep up to speed with the constantly growing numbers of vehicles on roads, new solutions are required. Fast urban railway systems are a solution that can reduce transport congestion, with environmental protection issues also taken into account. Following these reasons, the decision was made to build the Szczecin Metropolitan Railway (Szczecińska Kolej Metropolitalna, or SKM), consisting of four lines constructed using existing railway infrastructure, within the Szczecin Metropolitan Area (SMA). The construction works on the linear and point assets of the SKM are ongoing and will be concluded in 2022. Therefore, given the large impact of this project on the affected communities, the purpose of the present study was to analyze the expectations of the SMA population concerning the launch of the SKM via a large-scale questionnaire. For the purposes of the study, the following research hypothesis was defined: from the assessment of the affected residents, the introduction of the SKM will considerably improve the travel experience and greatly facilitate transit within the fast railway system’s area of impact. From the analysis of the questionnaire, it could be concluded that the introduction of the SKM will have a positive impact on the improvement of transport within the Szczecin area and shorten travel times significantly.
  • Kacprzak, Paweł (Scientific Journals Maritime University of Szczecin, Zeszyty Naukowe Akademia Morska w Szczecinie, )
    This article presents an analysis of internal forces and roll motion during a nodule loading simulation for a ship at sea. The study carried out a full assessment of ship behavior during loading, which took into account wave height and period occurrence around the Clarion–Clipperton Zone by the use of an operational efficiency index. One of the aims was to verify whether waves have an influence on excessive ship motion and internal forces during nodule loading. Two alternative loading sequences were developed and compared by taking loading time, shear forces, bending moments, roll motion and waving into account. The research shows that loading is only possible during specific sea weather conditions for the selected bulk carrier.
  • Kuznetsov, Valerii; Gogorenko, Oleksiy; Kuznetsova, Svetlana (Scientific Journals Maritime University of Szczecin, Zeszyty Naukowe Akademia Morska w Szczecinie, )
    Charge air cooling is essential for the efficient operation of marine diesel engines. This work presents the results of research on the characteristics of long-range heat transfer surfaces for marine diesel engines. Elliptical and flat-oval tubes were considered. This study was carried out using mathematical models that consisted of the equations for energy conservation, motion, continuity, and state. The RSM turbulence model was used to close the system of equations. To solve the resulting system of equations, the RANS approach was used, which was implemented in the software package Code Saturne with a free license and the SimScale cloud service. The mathematical model was verified by comparing the model results with the experimental results obtained using a prototype heat-exchange surface of a charge air cooler at a test bench. The discrepancy between the theoretical and experimental heat transfer coefficient α was ≤ 8.3%. An estimate of the compactness of smooth elliptical and flat-oval tube banks compared with round ones was carried out. A 19.6% increase in compactness was obtained for elliptical tubes and 17.5% for flat-oval tubes. Based on the profiled finning surfaces, it is possible to improve their thermohydraulic characteristics by up to 40% when using them together with elliptical tubes compared with round ones and up to 26% when using them with flat-oval tubes.
  • Boljat, Helena Ukić; Vilke, Siniša; Grubišić, Neven; Maglić, Livia (Scientific Journals Maritime University of Szczecin, Zeszyty Naukowe Akademia Morska w Szczecinie, )
    In Europe, at the end of the 20th century, the growth of marinas followed the rapid development of recreational marine activities. This trend has now slowed and today the creation of new marinas or the extension of existing marinas is less common, mainly due to the enforcement of protective environmental regulations. As the port sector is facing some major sustainability challenges, like tackling the pollution generated from port activities, the “green port”, or “green marina”, concept has now become a requirement. Both types of nautical ports, public ports and private marinas, share the same responsibility to achieve management standards. The term “green port” in practice describes the responsible behavior of all stakeholders in the port’s business, with a focus on the long-term vision towards the sustainable and climate-friendly development of the port’s infrastructure. This paper aims to confirm the adequacy of multi-criteria analysis (MCA) for the evaluation and introduction of energy efficient mobility options in nautical ports. Within the paper, a multi-criteria based model for energy- efficient mobility selection is presented. This model is tested on two Croatian private marinas and obtained results indicating the most suitable action for both. The output of the model showed that by far the best energy- efficient solution was the installation of electric charging stations (ECS) for cars. The presented model can assist decision-makers in port authorities and marina administrations in planning and finding the best scenario for the development of energy efficient systems and services.

Search repository

Advanced Search

Browse

My Account

RSS Feeds