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The test results can be helpful for the designers and users of the strand transmissions with synchronous belts. Both calculation procedures and selection process of the transmission subassemblies should take into account the real values of the transmission efficiency. The efficiency depends on the initial tension of the cogbelt, transmission ratio and coupling between the cogbelt and the wheel gear...
Międzynarodowy Festiwal Ogrodów w Ponte de Lima w Portugalii organizowany jest od 2005 r. i w tym roku świętuje swoją dziesiątą rocznicę pod hasłem „Jardins em Festa” – „Ogrody na przyjęcia”.
The paper presents variability in morphological traits of trees in mature Scots pine stands exposed to wind. The analysed parameters included breast height diameter, tree height and length, diameter, lateral area and crown base area. Except for the crown base area and crown diameter, values of the other traits increased with an increase in the distance from the edge of the stand. Crown diameter in...
Research was carried out in Scots pine (Pinus sylvestris L.) stands damaged by strong wind in six locations in Poland. The aim of this study was to analyse the radial variation of compressive strength parallel to grain in the wind−broken trees and neighbouring survivors. Strength tests were conducted in moisture above saturation fibre point. There were no significant differences in the radial distribution...
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