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    Wyświetlanie 1-2 z 2
    Tytuł:
    Technologies for monitoring the technical condition of transport infrastructure objects based on the coefficient of correlation between critical values of noise and useful signals
    Autorzy:
    Aliev, Telman
    Musaeva, Naila
    Powiązania:
    https://bibliotekanauki.pl/articles/2203895.pdf
    Data publikacji:
    2022
    Wydawca:
    Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
    Tematy:
    noise
    useful signal
    noisy signal
    transport infrastructure object
    monitoring
    defect
    dynamics of malfunction development
    critical value of noise
    correlation coefficient
    szum
    użyteczny sygnał
    głośny sygnał
    obiekt infrastruktury transportowej
    monitorowanie
    defekt
    dynamika rozwoju usterki
    wartość krytyczna hałasu
    współczynnik korelacji
    Opis:
    Transport infrastructure objects are exposed to a large number of loads, which cause the formation of displacements, bends, wear, cracks, breakdowns, corrosion, and other defects. It is shown that at the moment of initiation of malfunctions in objects, the noise of the noisy signals coming from the corresponding sensor takes critical values that correlate with useful signals. Therefore, algorithms are developed for calculating the probability of random noise accepting critical values, a coefficient of correlation between the critical values of the noise and the useful component, and a relay cross-correlation function. Technologies for monitoring the technical condition of transport infrastructure objects are proposed based on the estimates of the developed noise characteristics. Computational experiments are conducted, and the reliability of the developed algorithms and technologies is confirmed.
    Źródło:
    Transport Problems; 2022, 17, 2; 213--224
    1896-0596
    2300-861X
    Pojawia się w:
    Transport Problems
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Good practices of Polish companies in terms of sustainable development challenges
    Autorzy:
    Czerska, Iwona
    Korpak, Tetiana
    Powiązania:
    https://bibliotekanauki.pl/articles/324971.pdf
    Data publikacji:
    2019
    Wydawca:
    Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
    Tematy:
    CSR
    sustainable development
    good practices
    analysis of the dynamics
    rozwój zrównoważony
    dobre praktyki
    analiza dynamiki
    Opis:
    The study deals with the practical dimension of CSR initiatives, pointing to the good practices of an increasing number of companies in Poland in the context of their development. The CSR concept is gaining more importance in the development of companies and the idea of socially responsible business, implemented and consistently performed by enterprises, can significantly contribute to the growth of competitiveness on the market, building company’s value and shaping a lasting advantage over competitors. The main objective of the study was to examine good practices of Polish companies in terms of sustainable development challenges. The specific objective of this paper was to indicate the areas of corporate social responsibility in selected companies. The analysis focused on the following CSR areas: community involvement and development, consumer issues, the environment and labour practices. The study of the subject literature and websites on good CSR practices and the statistical and econometric analysis were used as research methods. A comparative analysis of CSR initiatives of selected companies was performed, comparing the tabulated information from the last few years. For the number of companies and practices in 2014-2018, the analysis of the dynamics was performed. First, simple indexes (one-base and chain) were determined. Next, the mid-term chain index and the mid-term rate of change were calculated and interpreted. Finally, for both variables, a linear trend model was determined. The results of the dynamics’ analysis indicated a clear upward trend both in terms of the number of socially responsible companies in Poland, and in the amount of good practices implemented by those companies. In the following years, a further systematic increase in the values of both variables is to be expected.
    Źródło:
    Zeszyty Naukowe. Organizacja i Zarządzanie / Politechnika Śląska; 2019, 139; 89-105
    1641-3466
    Pojawia się w:
    Zeszyty Naukowe. Organizacja i Zarządzanie / Politechnika Śląska
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-2 z 2

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