Physiological workload of workers employed during motor-manual timber harvesting in young alder stands in different seasons

Autor: Witold Grzywiński, Rafał Turowski, Tomasz Jelonek, Arkadiusz Tomczak

Publikováno v: International Journal of Occupational Medicine and Environmental Health, Vol 35, Iss 4, Pp 437-447 (2022)

Objectives This study examined the physiological strain experienced by workers employed in motor-manual timber harvesting performed in winter and summer, and the applicability of heart rate indices for estimating energy expenditure. Material and Met

Externí odkaz: https://doaj.org/article/b48c2cd6c7fb4265bce6c91111499cc4

Long-term changes in winter abundance of the barbastelle Barbastella barbastellus in Poland and the climate change - Are current monitoring schemes still reliable for cryophilic bat species?

Autor: Iwona Gottfried, Tomasz Gottfried, Grzegorz Lesiński, Grzegorz Hebda, Maurycy Ignaczak, Grzegorz Wojtaszyn, Mirosław Jurczyszyn, Maciej Fuszara, Elżbieta Fuszara, Witold Grzywiński, Grzegorz Błachowski, Janusz Hejduk, Radosław Jaros, Marek Kowalski

Publikováno v: PLoS ONE, Vol 15, Iss 2, p e0227912 (2020)

Warmer winters may lead to changes in the hibernation behaviour of bats, such as the barbastelle Barbastella barbastellus, which prefers to hibernate at low temperatures. The species is also known for its large annual fluctuations in the number of wi

Externí odkaz: https://doaj.org/article/b0a2f0d8ed0a43c5ac33aeaec993d1b4

Does body posture during tree felling influence the physiological load of a chainsaw operator?

Autor: Witold Grzywiński, Tomasz Jelonek, Arkadiusz Tomczak, Marcin Jakubowski, Mariusz Bembenek

Publikováno v: Annals of Agricultural and Environmental Medicine, Vol 24, Iss 3, Pp 401-405 (2017)

Introduction and Objectives Holding determined body postures during work is connected with muscles activity. The more forced the posture, the larger the number of muscles taking an active part in holding and stabilizing the work posture. During loggi

Externí odkaz: https://doaj.org/article/4a9d45bcb4034e0ca745ca4d6691ee87

Effects of Short-Term Storage Method on Moisture Loss and Weight Change in Beech Timber

Autor: Marcin Jakubowski, Arkadiusz Tomczak, Witold Grzywinski, Tomasz Jelonek, Grzegorz Grodziński

Publikováno v: Croatian Journal of Forest Engineering, Vol 39, Iss 1, Pp 35-43 (2018)
National Information Processing Institute
Scopus-Elsevier
Croatian Journal of Forest Engineering : Journal for Theory and Application of Forestry Engineering
Volume 39
Issue 1

Timber harvested from fresh-felled trees has high moisture content and relatively high mass. During storage, the timber dries out and its weight decreases with the loss of moisture. The main objective of this study was to determine how the method and

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::42d864a3319eddd3696f5d38cd4ba7e3
https://hrcak.srce.hr/file/285570