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Wyszukujesz frazę "Olejnik, Anna" wg kryterium: Autor


Wyświetlanie 1-2 z 2
Tytuł:
Physical Activity as a Health Need
Autorzy:
Olejnik, Aleksander
Kubińska, Zofia
Pańczuk, Anna
Kubińska, Joanna
Powiązania:
https://bibliotekanauki.pl/articles/1055218.pdf
Data publikacji:
2017
Wydawca:
Uniwersytet Szczeciński. Wydawnictwo Naukowe Uniwersytetu Szczecińskiego
Tematy:
health needs
human needs
physical activity
Opis:
The scientific concept of human needs has an interdisciplinary nature and is associated with the standards of living and development, health and disease status, quality of life, and life satisfaction. Research results indicate that systematic physical activity at any ontogenesis period is of vital importance for optimal development and maintenance of physical efficiency, fitness, and health. Therefore, it has been assumed that physical activity is a health need of each man. The aim of the study is to find relationships between physical activity and health needs. The analysis was intended to reveal the importance, functions, and consequences of the impact of physical activity on the psychophysical condition of man based on examples from available literature. The relationships between physical activity and health needs have been presented from the perspective of public health and promotion targeted at improvement of public health in a way to ensure the best fulfilment of conscious and unconscious needs. According to WHO, health needs are disturbances in the health status or social well-being that require intervention measures such as treatment, rehabilitation, or social assistance as well as prevention measures. Systematic moderate physical activity is one of the most important factors with a beneficial effect on human physiological processes and improves the quality of life. The National Health Programme for 2016–2020 recommends increased physical activity among children, adolescents, and the elderly.
Źródło:
Central European Journal of Sport Sciences and Medicine; 2017, 19, 3; 105-111
2300-9705
2353-2807
Pojawia się w:
Central European Journal of Sport Sciences and Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Exhaust emissions of jet engines powered by biofuel
Autorzy:
Merkisz, Jerzy
Jasiński, Remigiusz
Łęgowik, Anna
Olejnik, Aleksander
Powiązania:
https://bibliotekanauki.pl/articles/2098181.pdf
Data publikacji:
2021
Wydawca:
Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
Tematy:
aviation
exhaust emissions
jet engine
biofuel
lotnictwo
emisja spalin
silnik odrzutowy
biopaliwo
Opis:
Biofuel use is one of the basic strategies to reduce the negative impact of aviation on the environment. Over the past two decades, a number of biofuels produced from plants, lubricants and maintenance products have been developed and introduced. New fuels must have specific physicochemical parameters and meet stringent standards. his article presents a comparative analysis of the exhaust emissions measurement results from jet engines powered by traditional aviation kerosene and its blends with ATJ (Alcohol to Jet) biofuel. The concentrations of carbon dioxide, carbon monoxide and hydrocarbons were measured. Measurements were conducted in laboratory conditions for various engine load values. Based on the analysis, it was found that the use of biofuel increases the concentration of carbon monoxide and hydrocarbons in the exhaust gas relative to aviation kerosene. The use of biofuel did not result in an increase in fuel consumption and related carbon dioxide emissions. Based on the conducted research, it was found that biofuel use did not affect the ecological properties of the engine significantly. In addition, a correlation analysis of the measurement results from both engines was carried out.
Źródło:
Transport Problems; 2021, 16, 4; 199--206
1896-0596
2300-861X
Pojawia się w:
Transport Problems
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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