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Wyszukujesz frazę "Krauze, S." wg kryterium: Autor


Wyświetlanie 1-2 z 2
Tytuł:
Vibration control in semi-active suspension of the experimental off-road vehicle using information about suspension deflection
Autorzy:
Kasprzyk, J.
Krauze, P.
Budzan, S.
Rzepecki, J.
Powiązania:
https://bibliotekanauki.pl/articles/229215.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
vibration control
magnetorheological damper
linear variable differential transformer
skyhook
Opis:
The efficiency of vibration control in an automotive semi-active suspension system depends on the quality of information from sensors installed in the vehicle, including information about deflection of the suspension system. The control algorithm for vibration attenuation of the body takes into account its velocity as well as the relative velocity of the suspension. In this paper it is proposed to use the Linear Variable Differential Transformer (LVDT) unit to measure the suspension deflection and then to estimate its relative velocity. This approach is compared with a typical solution implemented in such applications, where the relative velocity is calculated by processing signals acquired from accelerometers placed on the body and on the chassis. The experiments performed for an experimental All-Terrain Vehicle (ATV) confirm that using LVDT units allows for improving ride comfort by better vibration attenuation of the body.
Źródło:
Archives of Control Sciences; 2017, 27, 2; 251-261
1230-2384
Pojawia się w:
Archives of Control Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
HPLC-DAD-ESI/MS comparison of the chemical composition of flowers from two Arnica species grown in Poland
Autorzy:
Kimel, K.
Krauze-Baranowska, M.
Godlewska, S.
Pobłocka-Olech, L.
Powiązania:
https://bibliotekanauki.pl/articles/2049062.pdf
Data publikacji:
2020
Wydawca:
Instytut Włókien Naturalnych i Roślin Zielarskich
Tematy:
Arnica montana
Arnica chamissonis
simple phenols
polyphenols
sesquiterpene lactones
proste fenole
polifenole
laktony seskwiterpenowe
Opis:
Introduction: Arnica flowers are used in pharmaceutical and cosmetic industry. According to EMA only endangered Arnica montana provides the medicinal plant material. However, some European countries also allow the use of A. chamissonis flowers, whose chemical composition is not known in detail. Objective: The aim of the study was to recognize and compare the chemical composition of A. montana and A. chamissonis flowers collected from plants cultivated in Poland. Methods: HPLC-DAD-ESI/MS analysis comprised phenolic acids, flavonoids and sesquiterpene lactones. Results: Thirty eight flavonoids and phenolic acids were recognized and quantified, with patuletin, 6-methoxykaempferol and quercetin present only in A. chamissonis flowers. Moreover, helenalin and acetyl-dihydrohelenalin were identified. Conclusion: A. montana and A. chamissonis flowers from plants grown in Poland possess similar composition of simple phenols and polyphenols, present in concentration slightly higher in A. montana. Helenalin and dihydrohelenalin esters identified in arnica flowers from various regions of Europe were not detected.
Źródło:
Herba Polonica; 2020, 66, 2; 1-10
0018-0599
Pojawia się w:
Herba Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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