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    Wyświetlanie 1-4 z 4
    Tytuł:
    Application of satellite observations for the evaluation of the land surface temperature from GEM model forecast
    Autorzy:
    Gawuc, L.
    Struzewska, J.
    Kaminski, J. W.
    Durka, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/115542.pdf
    Data publikacji:
    2014
    Wydawca:
    Fundacja na Rzecz Młodych Naukowców
    Tematy:
    MODIS
    surface temperature
    model evaluation
    temperatura powierzchni
    ocena modelu
    Opis:
    Application of satellite observations for the evaluation of the land surface temperature from GEM model forecastAbstract: The Global Environmental Multiscale model (GEM) was evaluated against satellite observations and measurements from synoptic stations. The computational grid was set up in the global variable mode with the resolution of ~25 km over Central Europe. Model evaluation was performed over Central Europe within a window of 43-56°N latitude and 10-25°E longitude. Surface temperature forecasts were compared with the Moderate Resolution Imaging Spectroradiometer (MODIS) land surface temperature product. Air temperature measured at the height of 2 metres was obtained from about 480 synoptic stations from 13 Central Europe countries. Air temperature measurements collected at 9 UTC and 12 UTC during five days (31 January, 2 February, 3 March, 27 April and 18 June 2012) was compared with the GEM model results. Evaluation showed good agreement between modelled and observed data. In case of air temperature, the averaged value of the Mean Bias Error (MBE) was -0.42, the averaged Root Mean Square Error (RMSE) and the Mean Absolute Gross Errors (MAGE) were 3.21 and 2.32, respectively. Land surface temperature comparisons gave results of -2.01; 3.91 and 3.24 of the (MBE), (RMSE), and (MAGE), respectively. Also, correlation of derived modelling errors between surface temperature and air temperature are discussed. In each case the correlation coefficient was positive. The highest value (0.70) was obtained for periods when surface – atmosphere radiative exchange processes were dominant.
    Źródło:
    Challenges of Modern Technology; 2014, 5, 2; 25-32
    2082-2863
    2353-4419
    Pojawia się w:
    Challenges of Modern Technology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Ocena modelu dyspersji zanieczyszczeń powietrza OSPM: studium przypadku, Polska, Kraków
    Evaluation of the OSPM Air Pollutants Dispersion Model: Case Study, Krakow, Poland
    Autorzy:
    Rzeszutek, M.
    Bogacki, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/1818043.pdf
    Data publikacji:
    2016
    Wydawca:
    Politechnika Koszalińska. Wydawnictwo Uczelniane
    Tematy:
    ocena modelu
    OSPM
    modelowanie dyspersji atmosferycznej
    kanion uliczny
    zanieczyszczenie powietrza
    evaluation of model
    modeling of atmospheric dispersion
    street canyon
    air pollution
    Opis:
    The study represents the evaluation of the OSPM model on the basis of the simulation results carried out for the street canyon located in the Zygmunt Krasinski alley in Krakow. Road emission was estimated based on the data from 2012 in regard to the traffic volume and the types of vehicles. Meteorological data were acquired from the station located in the vicinity of the examined canyon. Ambient air quality was determined based on the monitoring data from the urban background station in Krakow. The calculation results were compared with the 1-hour concentration measurements from the traffic station located on the green belt between the two lanes of the analysed canyon. The analysis was restricted to the nitrogen dioxide (NO2) and the PM10 and PM2.5 particulate matter concentrations. Model evaluation was carried out according to the methodology of the air quality models assessment. Values of OSPM model statistical evaluation parameters fall within the range of “good models”, which indicates a very good quality of this model calculation results. A very strong correlation between the results of calculations and the observations was found, particularly for the particulate matter PM10 and PM2.5. Correlation coefficient values for these pollutants are 0.90 and 0.91, respectively. A detailed analysis revealed that the overall quality of the model is better with respect to nitrogen dioxide than for the analysed dust pollutants. However, this model is burdened with a tendency to underestimate 1-hour concentrations of particulate matter, which can be associated with: negligence of the lifting effect of the dust deposited on the road surface, the effect of removing the particulate filters from vehicles and the adequate ambient air quality for the analysed monitoring site. Very good agreement of the simulation results and observations indicates that the OSPM modelling system can be successfully applied to support the air quality management system in Krakow.
    Źródło:
    Rocznik Ochrona Środowiska; 2016, Tom 18, cz. 2; 351-362
    1506-218X
    Pojawia się w:
    Rocznik Ochrona Środowiska
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Model tests of a marine diesel engine powered by a fuel-alcohol mixture
    Autorzy:
    Zacharewicz, Marcin
    Kniaziewicz, Tomasz
    Powiązania:
    https://bibliotekanauki.pl/articles/2097626.pdf
    Data publikacji:
    2022
    Wydawca:
    Polskie Towarzystwo Naukowe Silników Spalinowych
    Tematy:
    model tests
    diesel engine
    model adequacy assessment
    alternative fuels
    diagnostics
    badania modelowe
    silnik Diesla
    ocena adekwatności modelu
    paliwa alternatywne
    diagnostyka
    Opis:
    The paper presents the results of model and empirical tests conducted for a marine diesel engine fueled by a blend of n-butanol and diesel oil. The research were aimed at assessing the usefulness of the proprietary diesel engine model in conducting research on marine engines powered by alternative fuels to fossil fuels. The authors defined the measures of adequacy. On their basis, they assessed the adequacy of the mathematical model used. The analysis of the results of the conducted research showed that the developed mathematical model is sufficiently adequate. Therefore, both the mathematical model and the computer program based on it will be used in further work on supplying marine engines with mixtures of diesel oil and biocomponents.
    Źródło:
    Combustion Engines; 2022, 61, 2; 83--88
    2300-9896
    2658-1442
    Pojawia się w:
    Combustion Engines
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Apparel Design Safety and Production Criteria and Models
    Bezpieczne projektowanie i produkcja odzieży – kryteria i modele
    Autorzy:
    Chen, L.
    Yan, X.
    Gao, C.
    Powiązania:
    https://bibliotekanauki.pl/articles/234142.pdf
    Data publikacji:
    2016
    Wydawca:
    Sieć Badawcza Łukasiewicz - Instytut Biopolimerów i Włókien Chemicznych
    Tematy:
    apparel safety
    safety attributes
    design
    production model
    safety evaluation
    bezpieczeństwo odzieży
    atrybuty bezpieczeństwa
    projektowanie
    produkcja modelu
    ocena bezpieczeństwa
    Opis:
    A safe apparel design and production (SADP) model was proposed as a system to guide the development of safe apparel. An objective analysis of user needs and examination of safe nutrients used in apparel design uncovered through related technical regulations/standards induction and recall case analysis led to the development of apparel safety needs criteria. The criteria were then translated into apparel safety attributes and used in the development of the SADP model. A theoretical evaluation model remained to be developed for apparel safety purposes using multi-part disassembly. It is hierarchically structured in accordance with apparel safety attributes, and demonstrates how the apparel design safety criteria was used by a design team or an industry worker. By the introduction of the apparel design safety evaluation model, a further shift to pro-action and to the prevention of losses will be made possible. The research also demonstrates the application of the SADP model to a textile product design problem.
    Zaproponowano kilka modeli bezpiecznego projektowania i produkcji odzieży jako systemu pozyskiwania odzieży bezpiecznej. Przeprowadzono obiektywną analizę potrzeb użytkownika, jak również stosowanych w projektowaniu i produkcji części składowych wyposażenia i odzieży. Doprowadziło to do opracowania kryteriów bezpieczeństwa projektowania i użytkowania.
    Źródło:
    Fibres & Textiles in Eastern Europe; 2016, 6 (120); 32-38
    1230-3666
    2300-7354
    Pojawia się w:
    Fibres & Textiles in Eastern Europe
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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