Temat: LSA - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Pneumatyczne tratwy ratunkowe w świetle przepisów Międzynarodowego Kodeksu Środków Ratunkowych LSA
International Standards of Life : Saving Appliances for inflatable liferafts
Autorzy:: Książkiewicz, E.
Szwoch, I.
Powiązania:: https://bibliotekanauki.pl/articles/309690.pdf
Data publikacji:: 2018
Wydawca:: Instytut Naukowo-Wydawniczy "SPATIUM"
Tematy:: zbiorowe środki ratunkowe
tratwa ratunkowa
pneumatyczna tratwa ratunkowa
kodeks LSA
collective life-saving appliance
liferaft
inflatable liferaft
LSA Code
Opis:: W artykule omówione zostały międzynarodowe standardy dotyczące projektowania i eksploatacji pneumatycznych tratw ratunkowych. Tratwy ratunkowe stanowią podstawowy środek zmniejszający skutki uszkodzenia lub utraty statku w przypadku nagłych katastrof i masowej ewakuacji. Ich bezpieczeństwo i niezawodność wpływa na bezpieczeństwo transportu morskiego zapewniając możliwość przetrwania rozbitków po opuszczeniu uszkodzonego statku. Zmiany, jakie zostały wprowadzone w nowym kodeksie LSA stosunku do poprzednich wymagań, przybliżają założone warunki eksploatacji do warunków rzeczywistych.
Maritime safety is linked to the safety of life - saving appliances. Because of that the paper discussed about international standards of life – saving appliances for inflatable liferafts. The new LSA code introduces slight changes compared to previous requirements, which significantly approximate the assumed operating conditions to real conditions.
Źródło:: Autobusy : technika, eksploatacja, systemy transportowe; 2018, 19, 12; 110-114
1509-5878
2450-7725
Pojawia się w:: Autobusy : technika, eksploatacja, systemy transportowe
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Optimization of the Morphological Parameters of a Metal Foam for the Highest Sound Absorption Coefficient Using Local Search Algorithm
Autorzy:: Jafari, Mohammad Javad
Khavanin, Ali
Ebadzadeh, Touraj
Fazlali, Mahmood
Sharak, Mohsen Niknam
Madvari, Rohollah Fallah
Powiązania:: https://bibliotekanauki.pl/articles/176536.pdf
Data publikacji:: 2020
Wydawca:: Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:: SAC
Sound Absorption Coefficient
LSA
Local Search Algorithm
metal foam
optimization
Opis:: Due to its unique features, the metal foam is considered as one of the newest acoustic absorbents. It is a navel approach determining the structural properties of sound absorbent to predict its acoustical behavior. Unfortunately, direct measurements of these parameters are often difficult. Currently, there have been acoustic models showing the relationship between absorbent morphology and sound absorption coefficient (SAC). By optimizing the effective parameters on the SAC, the maximum SAC at each frequency can be obtained. In this study, using the Benchmarking method, the model presented by Lu was validated in MATLAB coding software. Then, the local search algorithm (LSA) method was used to optimize the metal foam morphology parameters. The optimized parameters had three factors, including porosity, pore size, and metal foam pore opening size. The optimization was applied to a broad band of frequency ranging from 500 to 8000 Hz. The predicted values were in accordance with benchmark data resulted from Lu model. The optimal range of the parameters including porosity of 50 to 95%, pore size of 0.09 to 4.55 mm, and pore opening size of 0.06 to 0.4 mm were applied to obtain the highest SAC for the frequency range of 500 to 800 Hz. The optimal amount of pore opening size was 0.1 mm in most frequencies to have the highest SAC. It was concluded that the proposed method of the LSA could optimize the parameters affecting the SAC according to the Lu model. The presented method can be a reliable guide for optimizing microstructure parameters of metal foam to increase the SAC at any frequency and can be used to make optimized metal foam.
Źródło:: Archives of Acoustics; 2020, 45, 3; 487-497
0137-5075
Pojawia się w:: Archives of Acoustics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Modelling of Cr3C2-25% NiCr Laser Alloyed Cast Iron in High Temperature Sliding Wear Condition Using Response Surface Methodology
Autorzy:: Jeyaprakash, N.
Duraiselvam, M.
Raju, R.
Powiązania:: https://bibliotekanauki.pl/articles/351074.pdf
Data publikacji:: 2018
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: Laser Surface Alloying
LSA
wear
microhardness
Analysis of Variance
ANOVA
Response Surface Methodology
RSM
Opis:: The wear behaviour of Cr₃C₂-25% NiCrlaser alloyed nodular cast iron sample were analyzed using a pin-on-disc tribometer. The influence of sliding velocity, temperature and load on laser alloyed sample was focused and the microscopic images were used for metallurgical examination of the worn-out sites. Box-Behnken method was utilised to generate the mathematical model for the condition parameters. The Response Surface Methodology (RSM) based models are varied to analyse the process parameters interaction effects. Analysis of variance was used to analyse the developed model and the results showed that the laser alloyed sample leads to a minimum wear rate (0.6079 ×10^–3 to 1.8570 ×10^–3 mm³/m) and coefficient of friction (CoF) (0.43 to 0.53). From the test results, it was observed that the experimental results correlated well with the predicted results of the developed mathematical model.
Źródło:: Archives of Metallurgy and Materials; 2018, 63, 3; 1303-1315
1733-3490
Pojawia się w:: Archives of Metallurgy and Materials
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Computational model for simulation of lifeboat motions during its launching from ship in rough seas
Autorzy:: Dymarski, P.
Dymarski, C.
Powiązania:: https://bibliotekanauki.pl/articles/259137.pdf
Data publikacji:: 2012
Wydawca:: Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:: ship in rough seas
life saving appliances (LSA)
lifeboat launching
lifeboat motions
lifeboat launching simulation
Opis:: This paper presents a computational model which describes motion of an object of six degrees of freedom (DoF), intended for simulation of spatial motion of one- or two- rope-sling lifeboat or rescue boat during its launching from ship in rough sea. This is a complex model which accounts for sea conditions as well as elasticity and damping properties of davit’s elements and mechanisms, rope and boat hull. Also, are presented results of example calculations for an assumed set of technical parameters of davit and boat as well as sea conditions.
Źródło:: Polish Maritime Research; 2012, 3; 45-52
1233-2585
Pojawia się w:: Polish Maritime Research
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Innovative Liferaft
Autorzy:: Abramowicz-Gerigk, T.
Burciu, Z.
Jachowski, J.
Kornacka, E.
Stefurak, W.
Powiązania:: https://bibliotekanauki.pl/articles/116208.pdf
Data publikacji:: 2015
Wydawca:: Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:: liferaft
search and rescue (SAR)
liferaft constuction
Life Saving Applinces (LSA)
liferaft detection
radar detection
reflective material
liferaft characteristics
Opis:: The paper present the latest results of researcg carried out within R&D project on new solutions of liferaft constuction. CFD simulations of liferaft performance are presented.
Źródło:: TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2015, 9, 4; 573-577
2083-6473
2083-6481
Pojawia się w:: TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:: Biblioteka Nauki