Experimental research into the effect of some operation factors and rock properties on the rate of penetration [PDF]
Purpose. The purpose of this research is to investigate the effect of weight on bit (WOB), rotary speed (RPM), and some rock properties on the rate of penetration (ROP). Methods.
Ali, Mahrous A.M. +4 more
core +1 more source
Wzrost szczepów lipy drobnolistnej (Tilia cordata Mill.) na plantacji nasiennej w Nadleśnictwie ...
Agata Ludwikowska +2 more
openaire +1 more source
Cost-effective method for the estimation of tree crown density in urban settings using a smartphone
Urban trees provide vital ecosystem services, and assessing their health is crucial for managing urban infrastructure. Traditional methods of assessing crown density, an indicator of tree vitality, involve horizontal perspectives of unobstructed canopies.
Ivo Sippel, Lucie Moeller, Jan Friesen
doaj +1 more source
Mite species (Acari: Mesostigmata) new and rare to Polish fauna, inhabiting the soil of broadleaved forests dominated by small-leaved lime (Tilia cordata Mill.) in Kwidzyn Forest District (N Poland) [PDF]
Abstract During a two-year study on mites of the order Mesostigmata in broadleaved forest stands dominated by small-leaved lime (Tilia cordata Mill.), 117 mite species were identified. Among them, 3 had been so far rarely recorded in Poland (Haemogamasus nidi, Stylochirus rovenensis and Eugamasus crassitarsis) and 2 were classified as ...
KATARZYNA FALEŃCZYK-KOZIRÓG +2 more
openaire +2 more sources
Let us consider an alternative perspective on climate change: The sum of solar radiation and heat generated by human activity result in a net energy input of 1.96 times that of the Sun on the Earth's surface. The expanding global population is expected to exacerbate this issue. Potential solutions are proposed, including replacement and heat recycling.
Martin Bertau, Gerald Steiner
wiley +1 more source
Bryophytes of Mordovia State Nature Reserve (European Russia) [PDF]
The present study compiles the results of bryophyte species inventories made at the Mordovia State Nature Reserve from 2014 till 2016. The reserve is located near southern limit of deciduous-coniferous forest subzone.
Czernyadjeva, Irina V. +2 more
core +2 more sources
The importance of city trees for reducing net rainfall: comparing measurements and simulations [PDF]
An in situ tree interception experiment was conducted to determine the hydrological impact of a solitary standing Norway maple and a small-leaved lime in an urban environment.
V. Smets +5 more
doaj +1 more source
Culturally modified trees or wasted timber: Different approaches to marked trees in Poland’s Białowieża Forest [PDF]
Studies of past forest use traditions are crucial in both understanding the present state of the oldest European forests, and in guiding decisions on future forest conservation and management. Current management of Poland’s Białowieża Forest (BF), one of
Fedotova, Anastasia +3 more
core +1 more source
Electron paramagnetic resonance and quantitative color investigations of various vacuum heat treated wood species [PDF]
The effect of the heat treatment duration on the electron paramagnetic resonance signal amplitude of free radicals for various wood species was observed.
E.I. Kondratyeva, K.R. Safiullin, I.G. Motygullin, A.V. Klochkov, M.S. Tagirov, V.V. Kuzmin
doaj
In Swiss mountain areas, the protective function of forests is the predominant ecosystem service having high cultural and economic significance. It is assumed that natural forests or close-to-natural forests, i.e., forests being in the equilibrium with ...
Daniel Scherrer +4 more
doaj +1 more source

