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    Wyświetlanie 1-13 z 13
    Tytuł:
    Assessing the impact of a targeted plyometric training on changes in selected kinematic parameters of the swimming start
    Autorzy:
    Rejman, M.
    Bilewski, M.
    Szczepan, S.
    Klarowicz, A.
    Rudnik, D.
    Maćkała, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/306786.pdf
    Data publikacji:
    2017
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    pływanie
    pliometryka
    start
    efektywność
    swimming start
    plyometry
    effectiveness
    Opis:
    The aim of this study was to analyse changes taking place within selected kinematic parameters of the swimming start, after completing a six-week plyometric training, assuming that the take-off power training improve its effectiveness. Methods: The experiment included nine male swimmers. In the pre-test swimmers performed three starts focusing on the best performance. Next, a plyometrics training programme, adapted from sprint running was introduced aimed at increasing explosive power of the lower extremities; the programme entailed 75 minute sessions conducted twice a week. Afterwards, a post-test was performed, analogous to the pre-test. Spatio-temporal structure data of the swimming start were gathered from video recordings of the swimmer both above and under water. Results: Impulses triggered by the plyometric training contributed to a shorter start time (the main measure of start effectiveness) and glide time as well as increasing average take-off, flight and glide velocities including take-off, entry and glide instantaneous velocities; the glide angle decreased. Conclusions: The changes in selected parameters of the swimming start and its confirmed diagnostic values, showed the areas to be susceptible to plyometric training and suggested, that applied plyometric training programme aimed at increasing take-off power enhances the effectiveness of the swimming start.
    Źródło:
    Acta of Bioengineering and Biomechanics; 2017, 19, 2; 149-160
    1509-409X
    2450-6303
    Pojawia się w:
    Acta of Bioengineering and Biomechanics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A method for the approximation of oil binder fall trajectory
    Autorzy:
    Przywarty, M.
    Muczyński, B.
    Bilewski, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/135230.pdf
    Data publikacji:
    2018
    Wydawca:
    Akademia Morska w Szczecinie. Wydawnictwo AMSz
    Tematy:
    oil binders
    oil spill handling
    BioBind
    natural experiment
    sea operation
    approximation
    Opis:
    The following paper presents a novel method for approximating the fall trajectories of small, lightweight oil binders, used during oil spill clean-up operation at sea. Due to the weight, size and shape of the binders, the fall trajectory is highly dependent on the direction and strength of the wind, as well as the rotations and positions of individual binders when dropped. Since a large quantity of tightly packed binders are dropped at once, it is highly inconvenient to calculate the precise trajectory of each binder when its exact initial rotation and position inside the container are not known. The aim of this study is to predict the exact moment and position of the drop, as well as the oil binders’ spread, considering wind conditions, airplane velocity and height.
    Źródło:
    Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2018, 53 (125); 43-47
    1733-8670
    2392-0378
    Pojawia się w:
    Zeszyty Naukowe Akademii Morskiej w Szczecinie
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Application of Markov chains to a navigator visual attention model
    Autorzy:
    Muczyński, B.
    Gucma, M.
    Bilewski, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/135458.pdf
    Data publikacji:
    2016
    Wydawca:
    Akademia Morska w Szczecinie. Wydawnictwo AMSz
    Tematy:
    eye tracking
    usability studies
    stochastic model
    marine simulator
    Markov chains
    navigation
    Opis:
    This paper presents initial results from a series of eye-tracking experiments on a Full Mission Bridge simulator. The aim of this research was to develop a stochastic model of a navigator’s attention distribution during their navigational watch. Such model could be used as a tool for workload and usability studies for navigators and navigational equipment interfaces. A structure of the model is discussed together with the evaluation of Markov chains as a main modelling tool. Initial results are presented and discussed. It is suggested that 1st order Markov chains are not fully applicable for this problem. A combination of the 1st and higher-order Markov chains will be applied in the next stage of research.
    Źródło:
    Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2016, 46 (118); 95-100
    1733-8670
    2392-0378
    Pojawia się w:
    Zeszyty Naukowe Akademii Morskiej w Szczecinie
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Using eye tracking data for evaluation and improvement of training process on ship’s navigational bridge simulator
    Autorzy:
    Muczyński, B.
    Gucma, M.
    Bilewski, M.
    Zalewski, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/360367.pdf
    Data publikacji:
    2013
    Wydawca:
    Akademia Morska w Szczecinie. Wydawnictwo AMSz
    Tematy:
    eye tracker
    gaze data
    statistical analysis
    mental workload
    Opis:
    The paper presents basics of the eye tracking methodology and results of preliminary test on multi-purpose marine ship’s navigation bridge simulator. The use of the eye-tracker on the navigation bridge makes it possible to objectively measure the ergonomics of the individual interfaces, as well as to evaluate the decision-making process itself, including the mental workload and stress. In the experiment, officers were faced with an unexpected and sudden situation leading to a collision. The simulated situation required the officer to act immediately and resolutely, taking into account all his/her knowledge about the ship, and interpreting the available data correctly. Outcome of this test was compared with gaze data and it was proved that experienced group with best results suffered lowest level of mental workload and was most efficient In decision making process. Based on those results a possibility of improving simulator training with the use of eye tracking data is discussed.
    Źródło:
    Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2013, 33 (105); 75-78
    1733-8670
    2392-0378
    Pojawia się w:
    Zeszyty Naukowe Akademii Morskiej w Szczecinie
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Criteria of accidental damage by ships anchors of subsea gas pipeline in the Gdańsk bay area
    Autorzy:
    Marcjan, K.
    Dzikowski, R.
    Bilewski, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/117554.pdf
    Data publikacji:
    2017
    Wydawca:
    Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
    Tematy:
    vessel's damage consequences
    criteria of accidental damage
    ships anchors
    subsea gas pipeline
    Gdansk Bay Area
    pipeline
    underwater infrastructure
    damage to the pipeline
    Opis:
    This paper discusses issues of the accidental anchor damage to offshore subsea pipeline as one of the most significant threat to underwater infrastructure. The density of vessel traffic over the pipeline between platform Baltic Beta and Wladyslawowo power plant has been analyzed. In order to determine the most common damages associated with heavy ship traffic, the authors used the risk model for underwater infrastructure. For this purpose ships anchor equipment has been categorized and as the results the criteria of damage to the pipeline have been discussed.
    Źródło:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2017, 11, 3; 441-446
    2083-6473
    2083-6481
    Pojawia się w:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Functionality of navigation systems interfaces in the integrated interactive simulator for inland ship navigation
    Autorzy:
    Juszkiewicz, W.
    Muczyński, B.
    Gucma, M.
    Bilewski, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/360058.pdf
    Data publikacji:
    2013
    Wydawca:
    Akademia Morska w Szczecinie. Wydawnictwo AMSz
    Tematy:
    ergonomics
    touch screen
    radar
    conning
    Opis:
    The following paper describes functionality of navigation systems interfaces in the newly developed shiphandling simulator for the inland navigation (called InSim) at Maritime University of Szczecin. It is based on analysis of radar interface and conning touch screen that has been designed for the simulator.
    Źródło:
    Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2013, 35 (107); 47-51
    1733-8670
    2392-0378
    Pojawia się w:
    Zeszyty Naukowe Akademii Morskiej w Szczecinie
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    System for determining dynamic under keel clearance of vessels entering the Port of Swinoujscie (DRWPS)
    Autorzy:
    Gucma, L.
    Bilewski, M.
    Artyszuk, J.
    Drwięga, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/117501.pdf
    Data publikacji:
    2017
    Wydawca:
    Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
    Tematy:
    port manoeuvering
    under keel clearance
    Port of Swinoujscie
    response amplitude operator
    UKC reduction
    graphical user interface
    liquefied natural gas
    LNG vessels
    Opis:
    The article presents a system for determining dynamic under keel clearance. In order to build a DRWPS system, a mixed model was created based on the analysis of math models. The system includes advisory software for defining the conditions for the entering of large LNG vessels in the context of under keel clearance and software was built to support the decision-making of operators who are responsible for introducing these vessels to the Port of Swinoujscie.
    Źródło:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2017, 11, 3; 539-545
    2083-6473
    2083-6481
    Pojawia się w:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A kinematic method for the assessment of the safe parameters of a waterway bend
    Autorzy:
    Dzwonkowski, J.
    Przywarty, M.
    Bilewski, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/135435.pdf
    Data publikacji:
    2018
    Wydawca:
    Akademia Morska w Szczecinie. Wydawnictwo AMSz
    Tematy:
    kinematic method
    safe parameters
    waterway
    simulation model
    physically paths
    simulation
    Opis:
    This paper presents an original kinematic method for the assessment of the safe parameters of waterway bends. The proposed method has been based on the analysis of the results obtained through the use of the developed simulation model which allowed for the examination of all the physically available paths of a ship’s centre of gravity. The results of the simulation were divided into defined subsets that enabled the assessment of the safe parameters of waterway bends. This paper also presents the calculations that were carried out for the theoretical reference bend.
    Źródło:
    Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2018, 53 (125); 106-113
    1733-8670
    2392-0378
    Pojawia się w:
    Zeszyty Naukowe Akademii Morskiej w Szczecinie
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Application of ultrasonic distance sensors for measuring height as a tool in unmanned aerial vehicles with a stabilized position in the vertical plane
    Autorzy:
    Bilewski, M.
    Putynkowski, G.
    Powiązania:
    https://bibliotekanauki.pl/articles/135446.pdf
    Data publikacji:
    2016
    Wydawca:
    Akademia Morska w Szczecinie. Wydawnictwo AMSz
    Tematy:
    UAV
    ultrasonic distance sensors
    height measurement
    arduino
    raspberry Pi
    netduino
    Opis:
    The paper presents a review of ultrasonic sensors. Attention is focused on the possibility of using such sensors to keep an unmanned aerial vehicle at a constant altitude above the surface. Such a task requires filtered and unfiltered signals, so that the ground level can be distinguished even when obstacles are present. Three selected sensors were tested. The possibility of connecting these sensors to external devices was also studied. The potential of the individual sensors and of a set of sensors is discussed. The study showed that the best solution is to use a set of three ultrasonic sensors. Alternatively, a sensor with both unfiltered and filtered measurement was proved to be an adequate option.
    Źródło:
    Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2016, 46 (118); 17-21
    1733-8670
    2392-0378
    Pojawia się w:
    Zeszyty Naukowe Akademii Morskiej w Szczecinie
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Assessment of GNSS Position Integrity with the Use of Postprocessed EGNOS Data in the Area of Szczecin-Świnoujście Waterway
    Autorzy:
    Bilewski, M.
    Zalewski, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/320741.pdf
    Data publikacji:
    2018
    Wydawca:
    Polskie Forum Nawigacyjne
    Tematy:
    EGNOS
    SBAS
    integrity data
    SISNET parser
    CRC-24Q
    Opis:
    GNSS measurements can be supplemented by the information available in EGNOS system even if one has only GNSS receiver that is not processing Satellite-Based Augmentation Systems data. The article describes how to obtain the variances of ranges to the satellites used for positioning when the final antenna position and satellites’ elevation and azimuths values are recorded. To verify how the resultant estimates of position error correspond to real errors the research based on GPS receiver was conducted.
    Pomiary GNSS mogą być wspomagane informacją dostępną w systemie EGNOS nawet, gdy wykorzystuje się odbiornik GNSS, który nie jest zdolny do przetwarzania danych z system SBAS. W artykule opisano, w jaki sposób można uzyskać informację o wariancji pomierzonych odległości do satelitów, jeśli znane są pozycja anteny oraz azymuty i wysokości satelitów ponad horyzontem. Dla zweryfikowania, w jakim stosunku pozostają estymowane błędy pozycji względem rzeczywistych błędów przedstawiono wyniki badań przeprowadzonych z użyciem odbiornika GPS.
    Źródło:
    Annual of Navigation; 2018, 25; 67-77
    1640-8632
    Pojawia się w:
    Annual of Navigation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Conception of EGNOS Integrity Data Utilization in ENC Systems
    Autorzy:
    Bilewski, M.
    Zalewski, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/117265.pdf
    Data publikacji:
    2016
    Wydawca:
    Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
    Tematy:
    Global Navigation Satellite System (GNSS)
    EGNOS
    Electronic Chart Display and Information System (ECDIS)
    Marine Vessel Protection Area (MVPA)
    Electronic Navigational Charts (ENC)
    Full Mission Bridge Simulator (FMBS)
    integrity
    Opis:
    The paper presents the processing of EGNOS integrity data received either directly from the satellite network or the Sisnet internet relay. Relationship between the individual frames in EGNOS messages has been described. Usefulness of these data was indicated by the three examples. In the first example data form EGNOS was used to compare integrity parameters and the calculated position error. In further examples the simulated position with error and calculated integrity parameters were implemented together. The results were presented in two ways: with use of dedicated program which presents only ship contours (the one not covering GNSS uncertainty and the one covering this uncertainty called Marine Vessel Protection Area) and as a layer in existing ECDIS.
    Źródło:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2016, 10, 3; 389-393
    2083-6473
    2083-6481
    Pojawia się w:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Construction and functionality of integrated interactive simulator for inland ship navigation
    Autorzy:
    Bilewski, M.
    Gucma, M.
    Karkos, D.
    Muczyński, B.
    Woś, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/359777.pdf
    Data publikacji:
    2014
    Wydawca:
    Akademia Morska w Szczecinie. Wydawnictwo AMSz
    Tematy:
    ergonomics
    touch screen
    ECDIS
    graphic engine
    Opis:
    The following paper describes construction and functionality of the newly developed shiphandling simulator for the inland navigation (called InSim), that was constructed as a part of research project at Maritime University of Szczecin. Problems of construction process and simulator ergonomics were presented. Fidelity of the simulation with respect to real environment, as well as details of all subsystems were discussed.
    Źródło:
    Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2014, 37 (109); 22-27
    1733-8670
    2392-0378
    Pojawia się w:
    Zeszyty Naukowe Akademii Morskiej w Szczecinie
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Determination of the inland units models parameters for short-term prediction
    Autorzy:
    Bilewski, M.
    Gucma, L.
    Puszcz, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/360014.pdf
    Data publikacji:
    2013
    Wydawca:
    Akademia Morska w Szczecinie. Wydawnictwo AMSz
    Tematy:
    short term prediction
    inland units
    manoeuvring
    hydrodynamics
    navigation simulator
    Opis:
    Short-term prediction is a tool that helps to manoeuvre inland units, allows assessing the effect of the planned manoeuvre and reduces the probability of collision. Model of ships hydrodynamics is required to perform this task. In the paper simple to implement solution based on a Nomoto model is proposed. Method of determi ning the parameters of the model was presented. Researches were carried out with use of INSim Inland Navigation Simulator.
    Źródło:
    Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2013, 36 (108) z. 1; 32-37
    1733-8670
    2392-0378
    Pojawia się w:
    Zeszyty Naukowe Akademii Morskiej w Szczecinie
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-13 z 13

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