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Wyświetlanie 1-10 z 14
Tytuł:
Surface roughness and wettability performance of thermally modified rowan wood as a fast-growing species
Autorzy:
Candan, Zeki
Görgün, Hızır Volkan
Korkut, Süleyman
Ünsal, Öner
Powiązania:
https://bibliotekanauki.pl/articles/2067429.pdf
Data publikacji:
2021
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Technologii Drewna
Tematy:
fast-growing species
rowan wood
surface roughness
thermal modification
wettability
Opis:
This study aims to examine the effect of the thermal modification process on the surface roughness properties of the wood of rowan (Sorbus aucuparia L.) as a fast-growing species. Four thermal modification processes were applied, with temperatures of 160 and 180°C and durations of 2 and 4 hours. In total five groups were compared, including the untreated group. Arithmetical mean roughness, maximum height, ten-spot average roughness, and root-mean-square deviation were measured using a stylus-type profilometer, both parallel and perpendicular to the grain, according to the JIS B 0601 standard. Wettability was determined by measuring the contact angle of a droplet of distilled water. After dripping, the camera captured several images to measure the contact angle. The results showed that thermal modification decreases the wettability of the samples. Moreover, increments in temperature and duration may further decrease wettability. On the other hand, there are no significant differences between groups in terms of the surface roughness values, measured both parallel and perpendicular to the grain, except for two groups. It is concluded that these process conditions did not substantially change the surface roughness properties of rowan wood panels. However, the decrease in wettability may provide new possibilities for the use of less-known wood species.
Źródło:
Drewno. Prace Naukowe. Doniesienia. Komunikaty; 2021, 64, 208; 35--44
1644-3985
Pojawia się w:
Drewno. Prace Naukowe. Doniesienia. Komunikaty
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Występowanie Phytophthora cactorum na jarząbie zwyczajnym (Sorbus aucuparia) w szkółkach leśnych
The occurrence of Phytophthora cactorum on rowan (Sorbus aucuparia) in forest nurseries
Autorzy:
Orlikowski, L.B.
Duda, B.
Oszako, T.
Powiązania:
https://bibliotekanauki.pl/articles/1023374.pdf
Data publikacji:
2004
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
wystepowanie
grzyby
czynniki chorobotworcze
Phytophthora cactorum
szkolki lesne
Sorbus aucuparia
lesnictwo
jarzab pospolity
drzewa lesne
fitopatologia lesna
phytophthora spp.
inoculation
rowan
disease
stem necrosis
isolation
Opis:
Phytophthora cactorum was isolated from about half of the rowan seedlings taken from 2 nurseries. Additionally, Botrytis cinerea and Fusarium solani were found in diseased tissues. In laboratory trials, the pathogen colonized plants of the family Rosaceae, and most especially Prunus avium, Pyrus communis and Rosa canina, as well as Alnus glutinosa, Betula verrucosa and coniferous plants. In a greenhouse trial, isolates from rowan and rhododendron were found to cause necrosis of the stem base, with a rate of disease spread of about 1.3 mm/24 h.
Źródło:
Sylwan; 2004, 148, 10; 67-72
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Morphological leaf variability of rowan [Sorbus aucuparia L. Emend. Hedl. subsp. aucuparia] in the Wielkopolska National Park
Zmiennosc morfologiczna lisci jarzebu pospolitego [Sorbus aucuparia L. Emend. Hedl. subsp. aucuparia] w Wielkopolskim Parku Narodowym
Autorzy:
Bednorz, L.
Byzia, A.
Powiązania:
https://bibliotekanauki.pl/articles/878270.pdf
Data publikacji:
2005
Wydawca:
Uniwersytet Przyrodniczy w Poznaniu
Tematy:
variability
Sorbus aucuparia
Wielkopolski National Park
Polska
botany
rowan
morphological variability
leaf
Wielkopolska region
multivariate statistical analysis
Źródło:
Roczniki Akademii Rolniczej w Poznaniu. Botanika-Steciana; 2005, 09
1896-1908
Pojawia się w:
Roczniki Akademii Rolniczej w Poznaniu. Botanika-Steciana
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The relationship between will and reason in the moral philosophies of Kant and Aquinas
Autorzy:
Rowan, Anna M.
Powiązania:
https://bibliotekanauki.pl/articles/426631.pdf
Data publikacji:
2015
Wydawca:
Uniwersytet Papieski Jana Pawła II w Krakowie
Tematy:
Aquinas
Kant
will
reason
ontological foundation of moral action
Opis:
Both Kant and Aquinas ground moral action in reason and will; however, this seems to be the end of the similarity in their approaches with respect to the role of reason and will in moral action. The goal of this essay is to show that Aquinas’ notion of the will as the rational appetite is superior to Kant’s notion of good will in providing the foundation for moral action. To this effect, I analyze the relationship between will and reason in their moral philosophies. I discuss Kant’s notion of will in both its moral and phenomenal modes, and Aquinas’ notion of will as the rational appetite and of human act. I argue that Aquinas’s notion of will and moral act is superior to that of Kant for several reasons. First and foremost, the notion of morally worthy action accommodates human nature with its inclinations, tendencies, and desires. It is not divorced from human physical and emotional nature. Second, in contrast to Kant’s will, Aquinas’s will retains its own identity. That is, it avails itself of reason’s search for truth and meaning, yet it does not collapse into reason, specifically logic. Third, Aquinas’ will is dynamic. In contrast to Kant’s, which in order to be moral simply follows the laws of logic, Aquinas’ will desires the good and propels a person to action. Finally, Aquinas’ notion of human act, in the sense that it involves both the counsel of reason and will’s capacity to desire the good, offers a more holistic understanding of human moral act and its possible consequences. In contrast to Kant’s will’s rigid command to obey the law, Aquinas’ notion of will and human act also gives reasons why we need to be moral. We must act morally, not only because our action would otherwise be self-contradictory or not live up to the letter of the law, but because our choices and our actions have real consequences in the world.
Źródło:
Logos i Ethos; 2015, 1(38); 93-130
0867-8308
Pojawia się w:
Logos i Ethos
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-10 z 14

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