Temat: buoy - Prolib Integro

Skocz do pozycji: 1.

Tytuł:: Verification of numerical forecast of atmospheric parameters near the Polish coast using the data from MIG-1 buoy
Autorzy:: Kałas, M.
Staśkiewicz, A.
Szefler, K.
Tematy:: forecast
MIG-1 buoy; Pokaż więcej
Wydawca:: Instytut Morski w Gdańsku
Powiązania:: https://bibliotekanauki.pl/articles/1920639.pdf Link otwiera się w nowym oknie
Opis:: The paper presents results of comparison of the numerical weather forecast data from two models (UMPL - ICM, Warsaw University and HIRLAM - SMHI Norrköping) with the measurements made in 2000 and 2001 at the open sea near the Hel Peninsula from the automatic buoy MIG-1. The agreement of both models with the experimental data is quite good.
Dostawca treści:: Biblioteka Nauki

Artykuł

na półce

Skocz do pozycji: 2.

Tytuł:: Verification of numerical forecast of atmospheric parameters near the Polish coast using the data from MIG-1 buoy
Autorzy:: Kałas, M.
Staśkiewicz, A.
Szefler, K.
Tematy:: forecast
MIG-1 buoy; Pokaż więcej
Wydawca:: Instytut Morski w Gdańsku
Powiązania:: https://bibliotekanauki.pl/articles/972866.pdf Link otwiera się w nowym oknie
Opis:: The paper presents results of comparison of the numerical weather forecast data from two models (UMPL - ICM, Warsaw University and HIRLAM - SMHI Norrköping) with the measurements made in 2000 and 2001 at the open sea near the Hel Peninsula from the automatic buoy MIG-1. The agreement of both models with the experimental data is quite good.
Dostawca treści:: Biblioteka Nauki

Artykuł

na półce

Skocz do pozycji: 3.

Tytuł:: Design and application of an automated smart buoy in Increasing Navigation Safety and environmental standards in Ports
Autorzy:: Bojić, F.
Karin, I.
Juričević, I.
Čipčić, M.
Tematy:: Safety at Sea
automated smart buoy
smart buoy
navigational safety
environmental standards
internet of things; Pokaż więcej
Wydawca:: Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Powiązania:: https://bibliotekanauki.pl/articles/1841522.pdf Link otwiera się w nowym oknie
Opis:: The growing demand for transportation has brought even larger quantities of traffic in spatially limited port areas. Considering a diverse traffic mix, infrastructural overcapacity and busy schedule, port communities have started to face possible degradation of safety and environmental standards. To mitigate these problems, a number of different monitoring solutions of marine environment were deployed. Since conventional environmental and traffic data gathering by physical monitoring and sampling was logistically complicated and inefficient in time and resources, different approaches had to be considered. With the rise of accessible Internet of Things (IoT) technology some ports already installed smart monitoring devices such as smart buoys. The goal of this paper is to examine the concept and benefits of an automated smart buoy as a cost effective, easy to install device capable of real-time remote information sharing. Furthermore, the design and operational processes of existing automated smart buoy will be presented, along with solutions for tackling navigational safety and environmental problems.
Dostawca treści:: Biblioteka Nauki

Artykuł

na półce

Skocz do pozycji: 4.

Tytuł:: Measurement and analysis of coastal waves along the north sea area of China
Autorzy:: Sun, S.
Li, H.
Sun, H.
Tematy:: coastal wave
measurement
buoy
spectral analysis; Pokaż więcej
Wydawca:: Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Powiązania:: https://bibliotekanauki.pl/articles/259794.pdf Link otwiera się w nowym oknie
Opis:: Taking advantage of coastal wave environment to carry out scaled ship model test is an effective testing technology for ship performance. In this paper, the method of spectral analysis is adopted to calculate the significant wave height, period, wave spectrum and some other parameters of some places along the North Sea area of China. The measured wave spectrum and the ocean spectrum are handled into non-dimensional form to evaluate their similarity. The influence of wind direction and tide on coastal waves was analyzed. And the results indicate that the coastal wave spectrum is similar to the ocean spectrum under some specific conditions.
Dostawca treści:: Biblioteka Nauki

Artykuł

na półce

Skocz do pozycji: 5.

Tytuł:: Preliminary Designing Method of External Pressure Vessels for Sea Subsurface Applications
Autorzy:: Michalski, J. P.
Tematy:: subsurface buoy mooring systems
external pressure vessels; Pokaż więcej
Wydawca:: Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Powiązania:: https://bibliotekanauki.pl/articles/259248.pdf Link otwiera się w nowym oknie
Opis:: This paper describes a unique engineering method intended for the preliminary designing of marine echo-location systems. The solved designing problem consists in determining geometrical parameters and selecting structural materials for a vessel of a buoyancy necessary to contain measuring instruments of a given mass, as well as its maximum gabarites and operational submersion depth. The assumed variability range of the system’s parameters determines a space of permissible applicability parameters of the method. Stress level related to permissible and critical stresses was assumed to be safety criterion for the vessel. The method may be applied also to solving converse problems consisting in determining maximum permissible submersion depth for a vessel made of assumed structural materials and having given geometrical parameters. The presented description of the method is illustrated by an example of its application.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Some practical problems of communications reliability inenviromental monitoring systems
Autorzy:: Dziadak, B.
Makowski, L.
Michalski, A.
Tematy:: monitoring systems
GSM communication
floating buoy
real-time messaging; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Powiązania:: https://bibliotekanauki.pl/articles/220493.pdf Link otwiera się w nowym oknie
Opis:: In this paper, some issues of building a reliable, distributed measurement system for monitoring of water quality in reservoir Lake Dobczyckie are presented. The system is based on a measurement station that has the shape of a floating buoy which is supposed to be at anchor on the reservoir. Wireless data transmission problems that were encountered during the development of the buoy, modeling a radio link, and measurements of actual signal strength on the reservoir are discussed. A mathematical approach to procedures of early situation assessment was conducted, and specialized procedures were designed for measurement stations of the system. It is also discussed how such computations can improve a qualitative assessment of system performance in terms of real-time messaging.
Dostawca treści:: Biblioteka Nauki

Artykuł

na półce

Skocz do pozycji: 7.

Tytuł:: An improvement in ro-ro stern berthing modelled on a case study
Autorzy:: Perkovic, M.
Batista, M.
Vidmar, P.
Luin, B.
Tematy:: mooring analysis
buoy engineering
accident
ro-ro
windage
tramontana
simulation; Pokaż więcej
Wydawca:: Akademia Morska w Szczecinie. Wydawnictwo AMSz
Powiązania:: https://bibliotekanauki.pl/articles/135160.pdf Link otwiera się w nowym oknie
Opis:: The high volume transported by ro-ro vessels has not come without a price. Accidents and incidents related to design – lack of bulkheads, instability, problems with cargo access doors, stowage, securing cargo and lifesaving appliances – are growing along with the size of the vessels themselves. One particular and recurrent problem is the degree of these giant box-like high riding vessels exposed to wind. Recently the effect of a tramontana – a fierce, sudden and short term regional wind – in the Port of Koper was to detach a moored ship, causing an accident. This paper will present a study of that accident, and through simulations and modelling determine an improvement that will allow berthing perpendicular to the stern ramp to function more securely.
Dostawca treści:: Biblioteka Nauki

Artykuł

na półce

Skocz do pozycji: 8.

Tytuł:: Power performance of the combined monopile wind turbine and floating buoy with heave-type wave energy converter
Autorzy:: Homayoun, Esmaeil
Ghassemi, Hassan
Ghafari, Hamidreza
Tematy:: combined renewable energy
monopile wind turbine
heaving buoy
power take of; Pokaż więcej
Wydawca:: Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Powiązania:: https://bibliotekanauki.pl/articles/260485.pdf Link otwiera się w nowym oknie
Opis:: This study deals with a new concept of near-shore combined renewable energy system which integrates a monopile wind turbine and a floating buoy with heave-type wave energy converter( WEC). Wave energy is absorbed by power-take-off (PTO) systems. Four different shapes of buoy model are selected for this study. Power performance in regular waves is calculated by using boundary element method in ANSYS-AQWA software in both time and frequency domains. This software is based on three-dimensional radiation/diffraction theory and Morison’s equation using mixture of panels and Morison elements for determining hydrodynamic loads. For validation of the approach the numerical results of the main dynamic responses of WEC in regular wave are compared with the available experimental data. The effects of the heaving buoy geometry on the main dynamic responses such as added mass, damping coefficient, heave motion, PTO damping force and mean power of various model shapes of WEC in regular waves with different periods, are compared and discussed. Comparison of the results showed that using WECs with a curvature inward in the bottom would absorb more energy from sea waves.
Dostawca treści:: Biblioteka Nauki

Artykuł

na półce

Skocz do pozycji: 9.

Tytuł:: Pozycjonowanie pław sygnalizacyjnych w zastosowaniach specjalnych
Positioning of signal buoys in special applications
Autorzy:: Makar, A.
Tematy:: podwodna infrastruktura nawigacyjna
pławy sygnalizacyjne
pozycjonowanie
underwater navigation infrastructure
buoy lights
positioning; Pokaż więcej
Wydawca:: Instytut Naukowo-Wydawniczy "SPATIUM"
Powiązania:: https://bibliotekanauki.pl/articles/315721.pdf Link otwiera się w nowym oknie
Opis:: W artykule przedstawiono problematykę wyznaczania położenia obiektów podwodnych stanowiących podwodną infrastrukturę nawigacyjną służącą do zabezpieczenia pozycjonowania obiektów poruszających się w toni wodnej oraz modułów rozpoznania podwodnego. Przyjęto założenie, że pozycjonowanie odbywa się na podstawie współrzędnych jednostki pływającej, a istotnym zagadnieniem jest wyznaczenie przesunięcia punktu odbicia fali akustycznej w wyniku występowania zjawiska refrakcji.
In the paper the issues of determination of localisation of underwater objects as the underwater navigational infrastructure for positioning of underwater moving objects and underwater detection modules have been presented. There have been assumed, that positioning is realized on the basis of the position of the vessel and the essential issue is to determine the displacement of the reflection point of the acoustic wave as a result of refraction phenomenon.
Dostawca treści:: Biblioteka Nauki

Artykuł

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Skocz do pozycji: 10.

Tytuł:: Boja jako element gramatyki polskiego języka migowego: wstępny przegląd danych korpusowych
Buoy as an element of grammar of Polish Sign Language: a preliminary review of corpus data
Autorzy:: Szymańska-Gątarek, Weronika
Rutkowski, Paweł
Tematy:: buoy
grammar of PJM (Polish Sign Language)
simultaneous communication
three-dimensional signing space; Pokaż więcej
Wydawca:: Towarzystwo Kultury Języka
Powiązania:: https://bibliotekanauki.pl/articles/2147052.pdf Link otwiera się w nowym oknie
Opis:: This paper is an introduction to the issue of buoys, i.e. signs normally produced with the non-dominant hand to ensure a spatial reference point for signs produced with the dominant hand. Simultaneous constructions of this type have been noticed in numerous sign languages, yet their equivalents have not been described in any detail for Polish Sign Language (PJM). The paper presents what can be said about the use of buoys in PJM on the basis of an analysis of a collection of empirical data extracted from the Corpus of Polish Sign Language (KPJM). The research confi rms that certain buoy types (fragment and depicting buoys) are frequent in PJM and can be found in recurring contexts, which speaks for considering them as a part of grammar of this language.
Dostawca treści:: Biblioteka Nauki

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