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    Wyświetlanie 1-8 z 8
    Tytuł:
    Expert survey method as a technique to support the decision-making process during dredging activity at the harbour
    Autorzy:
    Kaizer, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/116940.pdf
    Data publikacji:
    2020
    Wydawca:
    Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
    Tematy:
    activities in port area
    decision making process
    decision making
    dredging
    dredging activity
    expert survey method
    dredging process
    dredging project
    Opis:
    Organization of the dredging works is a multi-faceted issue. The management of the dredging process varies according to the location and it mostly depends on local conditions (Żak, 2014). The paper presents the results of the expert survey which was structured on a questionnaire concerning the dredging techniques in harbours. Respondents, that take part in the research, were experts from different nations, working at the management levels in the enterprises associated with the dredging branch. The aim of the proposed research was to support the selection of the appropriate dredger, the preparation of optimal work technology and the verification of strategic decisions affecting entire project. Taking everything into consideration the author proposes to use the expert survey as a technique to support the decision-making process. It enables to take advantage of the wide knowledge and experience of experts to create the most suitable dredging project.
    Źródło:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2020, 14, 1; 187-190
    2083-6473
    2083-6481
    Pojawia się w:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Analysis of the vessels’ service time in the Port of Gdańsk, Based on the Time Registration of ships entries and departures, as a proposition of multi-aspect method of port monitoring
    Autorzy:
    Myszka, A.
    Kaizer, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/116969.pdf
    Data publikacji:
    2020
    Wydawca:
    Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
    Tematy:
    time service
    Port of Gdansk
    marine traffic
    time registration
    port monitoring
    port operations
    vessel's service time
    analysis of vessel's service time
    Opis:
    The aim of the paper is to analyse the length of time that ships spend in the Port of Gdansk. It is based on the examination of the time when ships come into and leave the port. Source of data used in the study is public web platform - Marine Traffic. Analysis which was conducted, enables to get information about duration of ships servicing in the port with a division into dimension, load capacity and type of the ship. Due to that information, it is possible to observe the duration of complete service for each vessel, including entering the harbour, reloading and the departure. Gained knowledge would allow to forecast, plan and model future development operations more properly. In addition, due to the method based on counting the number of hours that ships spend in the harbour, it is possible to estimate the amount of pollution emitted to the air.
    Źródło:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2020, 14, 2; 465-468
    2083-6473
    2083-6481
    Pojawia się w:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Methodology of creating a work schedule for dredging a port area
    Autorzy:
    Smolarek, L.
    Kaizer, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/135579.pdf
    Data publikacji:
    2016
    Wydawca:
    Akademia Morska w Szczecinie. Wydawnictwo AMSz
    Tematy:
    maritime transport
    port operations
    dredging
    mathematical modelling
    underwater works
    methodology
    Opis:
    Since there is a tendency that new build vessels are increasing in size, dredging has become an important part of the development and maintenance strategy for ports serving the largest ships. The increase in the technical depth of vessels drives additional development of the entire port. However, the effectiveness of this type of project depends heavily on unrestricted traffic and uninterrupted operation of the terminal. This paper presents a modelling of various type of dredging activities in ports based on an existing work schedule. A tool used to queue work activities with a vacation was used in this effort. The methodology of creating a dredging time schedule in the port area depended mainly on disentangling interference caused by the ship traffic and dredgers trying to work at the same time.
    Źródło:
    Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2016, 45 (117); 202-206
    1733-8670
    2392-0378
    Pojawia się w:
    Zeszyty Naukowe Akademii Morskiej w Szczecinie
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Planned Concept of Central and External Port as an Opportunity for the Development of Tricitys Seaports in Poland
    Koncepcja Portu Centralnego i Zewnętrznego jako szansa na rozwój trójmiejskich portów morskich w Polsce
    Autorzy:
    Cieczko, M.
    Myszka, A.
    Kaizer, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/342358.pdf
    Data publikacji:
    2018
    Wydawca:
    Uniwersytet Morski w Gdyni. Wydawnictwo Uniwersytetu Morskiego w Gdyni
    Tematy:
    Port of Gdańsk
    Port of Gdynia
    ferry crossings
    global market
    trans-shipments
    Port Gdańsk
    Port Gdynia
    infrastruktura portowa
    ruch statków
    konteneryzacja
    Opis:
    One of the main determinants of the international status of a seaport is its capacity to handle the largest possible quantities of cargo carried by the largest vessels. A successful seaport is one where trans-shipments are handled by qualified personnel and where excellent facilities are available to ensure that the cargo delivered to the port can be delivered to its destination using the largest possible selection of various modes of transport. A successful seaport should be extended in size to be able to cater for an increasing number of ships at the same time. All these factors can help make seaports more competitive. The largest of Poland’s seaports, namely the Port of Gdańsk and the Port of Gdynia, are trying to reach the status of being ranked among Europe’s best ports. This goal can only be achieved through new ideas and new investment projects. Two projects are planned as a way to stimulate the development of Poland’s seaports: the Central Port at the Port of Gdańsk and the External Port at the Port of Gdynia. These projects will help strengthen the position of Tricity’s seaports in the international arena.
    Jedną z głównych cech determinujących pozycję portu na arenie międzynarodowej są jego parametry umożliwiające przeładunek jak największej ilości ładunków przewożonych przez jak największe jednostki pływające. Największe z polskich portów – Gdańsk i Gdynia – walczą o status jednych z najlepszych w Europie. Aby osiągnąć ten cel, każdy z portów wymaga nowych koncepcji, co prowadzi do szeregu inwestycji. Powstały dwa projekty umożliwiające portom rozwój. W porcie gdańskim powstanie Port Centralny, natomiast w Gdyni – Port Zewnętrzny. Zrealizowanie tych projektów wzmocni pozycję portów trójmiejskich na arenie międzynarodowej.
    Źródło:
    Zeszyty Naukowe Akademii Morskiej w Gdyni; 2018, 107; 9-24
    1644-1818
    2451-2486
    Pojawia się w:
    Zeszyty Naukowe Akademii Morskiej w Gdyni
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The dynamic of oxidative changes in rapeseed oil during maritime transport determined by storage conditions
    Autorzy:
    Ocieczek, A.
    Kaizer, A.
    Zischke, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/117448.pdf
    Data publikacji:
    2020
    Wydawca:
    Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
    Tematy:
    maritime transport of goods
    rapeseed oil
    oxidative changes
    maritime transport
    storage
    Modified Atmosphere Packing (MAP)
    TBA Index
    liquid cargo protection
    Opis:
    In order to provide quality and safety of liquid cargo carried by sea, it is necessary to obey the rules of its protection. During maritime transport edible oils are prone to detrimental influence of many external factors such as supply of oxygen, of water, of metal ions and of pollution, as well as changes of temperature and mixing caused by ship movement. Due to them, they could undergo oxidation reactions, hydrolysis, polymerization and various types of physical transformation. On account of them the deterioration of nutritional, health and sensory qualities of fat could occur. The aim of the study was the assessment of the dynamic of changes with oxidative character (peroxide value and TBA index) which could appear in edible oils depending on their storage conditions. The analysis, which lasted 12 weeks, concerns rapeseed oil. Oxidative changes were registered every two week. The storage conditions in the atmospheric air induced danger connected with oxygen presence, whereas nitrogen blanketing eliminated this risk factor. The assessment also includes the influence of temperature of storage (indoor temperature 20˚C or refrigeration temperature 4˚C) and mixing of the fats. The results indicate that nitrogen blanketing, lowering the temperature and eliminating the mixing during storage of oil have highly positive impact on reduction of oxidative changes in fats.
    Źródło:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2020, 14, 1; 107-113
    2083-6473
    2083-6481
    Pojawia się w:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The influence of a static, homogeneous magnetic field on the sorption properties of soybean meal during maritime transport
    Autorzy:
    Ocieczek, A.
    Kaizer, A.
    Otremba, Z.
    Powiązania:
    https://bibliotekanauki.pl/articles/2063955.pdf
    Data publikacji:
    2021
    Wydawca:
    Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
    Tematy:
    cargo transportation
    magnetic field
    soyabean meal
    maritime transport
    sea transportation
    sorption properties
    brunauer
    bulk cargo
    Opis:
    Providing safety and maintaining high quality of dry cargo, transported by sea, is associated with the necessity of taking into consideration their specific property, which is hygroscopicity. Susceptibility to the impact of water, which also occurs in vapour state, concerns mainly dry cargo, which are organic matter, containing carbohydrates and protein in their composition. This is because these substances have strong connection with water. The example of a bulk cargo often transported by sea is soybean meal, which is mainly produced in the USA, Brazil and Argentina. Due to its economic importance, the quality of soybean meal, which is globally used in the animal nutrition (poultry and swine), remains an important research issue. This product is obtained by subjecting the soybeans to cracking and dehulling processes, in order to facilitate the extraction of the oil. Water absorption of soybean meal causes reactions taking place in it, which leads to the changes in its chemical composition and, consequently, also in its nutritional values. Moreover, increasing the water content, leading to the increase of water activity, may significantly deteriorate the microbiological safety of the meal. Therefore, the research was undertaken to determine whether the sorption properties of soybean meal will change due to the influence of a static, homogeneous magnetic field. This aim has been achieved by determining and comparing the water vapour adsorption isotherms. The comparison of the isotherms determined under normal conditions and under the influence of a static, homogeneous magnetic field with an induction of 10 mT has been made on the basis of empirical data. Furthermore, using the Brunauer, Emett and Teller equation (BET), the monolayer and the energy constant of the sorption process have been estimated. The isotherms were determined at 20°C. The study lasted 9 days. Desiccators with aqueous supersaturated solutions of substances and a generator of a static magnetic field were used in the research. The obtained results have indicated that the influence of the magnetic field is a factor that causes the differentiation between the sorption properties of soybean meal expressed in the volume of the monolayer and the energy associated with the sorption phenomenon. The inferred findings show, that the magnetic field has an impact on the course of the sorption phenomenon in organic samples, and may determine the stability of the cargo during long-term maritime transport.
    Źródło:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2021, 15, 3; 649--657
    2083-6473
    2083-6481
    Pojawia się w:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Przegląd trendów IT w zarządzaniu sieciami dostaw, które decydują o współczesnej przewadze rynkowej
    IT trends overview in supply chain management which determine contemporary marketplace ascendancy
    Autorzy:
    Modzelewska, M.
    Borowski, R.
    Kaizer, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/344355.pdf
    Data publikacji:
    2017
    Wydawca:
    Uniwersytet Morski w Gdyni. Wydawnictwo Uniwersytetu Morskiego w Gdyni
    Tematy:
    transport
    łańcuch dostaw
    sieć dostaw
    systemy IT
    supply chain
    IT systems
    Opis:
    Celem niniejszego artykułu jest przeanalizowanie wpływu innowacyjnych rozwiązań IT na konkurencyjność przedsiębiorstwa na rynku. Przedstawiono tu systemy optymalizujące operacje na poszczególnych etapach transportowego łańcucha dostaw.
    The following study is to underline the influence of innovative IT solutions on enterprises to be more competitive on marketplace. Systems that are presented optimize various operations on subsequent steps of the supply chain.
    Źródło:
    Prace Wydziału Nawigacyjnego Akademii Morskiej w Gdyni; 2017, 32; 72-83
    1730-1114
    Pojawia się w:
    Prace Wydziału Nawigacyjnego Akademii Morskiej w Gdyni
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Analysis of Modern Port Technologies Based on Literature Review
    Autorzy:
    Kosiek, J.
    Kaizer, A.
    Salomon, A.
    Sacharko, A
    Powiązania:
    https://bibliotekanauki.pl/articles/2063961.pdf
    Data publikacji:
    2021
    Wydawca:
    Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
    Tematy:
    cargo transportation
    cargo transportation by sea
    modern port technologies
    COVID-19
    literature review
    literature analysis
    port operations
    logistics processes
    Opis:
    Modern technologies provide the optimization, the management, and the automation of the port operation and the logistics processes, hence they create an effective advance which strengthens the port's position among the maritime communities. If it is not enough, they also improve the integration of governing bodies to standardize and harmonize the reporting formalities. Ports have been especially challenged during the COVID - 19 pandemic. The port enterprises, which had dynamically introduced innovative solutions, have maintained their position on the market. This means that innovation is the only way to maintain a high position in the international economy. The aim of the study is to present a review of port technologies, which is based on literature. The article was written in accordance with the method of literature analysis.
    Źródło:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2021, 15, 3; 667--674
    2083-6473
    2083-6481
    Pojawia się w:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-8 z 8

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