Results 31 to 40 of about 5,281,681 (332)
Поволжская археология, 2022 Excavations of the Eneolithic workshop site for making stone chopping tools the Fofanovo XIII on the western shore of Lake Onega (second half of the IV Millennium calBC) provided representative and faunistic assemblage consisting of relatively well ...
Askeyev Igor V. +5 more
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Transition in viscoelastic properties within successive annual rings of radiata pine (Pinus radiata)
Journal of Wood Science, 2023 Dynamic mechanical analysis (DMA) measurements of water-saturated radiata pine wood in the temperature range from 0 ℃ to 100 ℃ were focused to clarify the transition in viscoelastic properties within successive annual rings.
Hiroaki Horiyama +2 more
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Modeling the forming surfaces of wood trunks using spline functions
Наукові праці Лісівничої академії наук України, 2018 It was developed the methodology for modeling complex geometric surfaces of natural origin – a tree trunk using spline functions. It allows to increase the accuracy and reliability of wood assessment in different dimensional characteristics, as well as ...
Yuriy Hrytsiuk, Svitlana Yatsyshyn
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ANALYSIS OF TRIGONOMETRIC COMPONENTS OF TIME SERIES OF ENVIRONMENTAL MONITORING DATA
Известия Томского политехнического университета: Инжиниринг георесурсов, 2021 The relevance. The forecast of the state of natural resources and climate change is always relevant, as well as the search for new mathematical approaches.
Irina G. Ustinova +2 more
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Frontiers in Plant Science, 2017 The age of living massive olive trees is often assumed to be between hundreds and even thousands of years. These estimations are usually based on the girth of the trunk and an extrapolation based on a theoretical annual growth rate.
Yael Ehrlich +3 more
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Dendrochronologia, 2018 We developed Blue Intensity (BI) measurements from the crossdated ring sequences of Fokienia hodginsii (of the family Cupressaceae) from central Vietnam. BI has been utilized primarily as an indirect proxy measurement of latewood (LW) density of conifers
B. Buckley +10 more
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Radial growth of Quercus robur L. response to climate change in Polissya and Forest-Steppe
Наукові праці Лісівничої академії наук України, 2020 The objects of the study are the old oak stands in Polissya and Forest Steppe, growing in conditions of fresh sugrud and fresh grud. The aim of the study is to identify climatic factors affecting the oak (Quercus robur L.) radial growth in Polissya and ...
Iryna Koval
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Вестник археологии, антропологии и этнографии, 2017 The article analyzes tree-ring chronologies of contemporary pines growing on different hypsometric marks in relation to the modern level of the Andreevskoe lakes, on the low-ridges of terrace-like formations, floodplain lowlands and riams.
Arefyev S.P., Zakh V.A.
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Oecologia, 2015 In Amazonian non-flooded forests with a moderate dry season, many trees do not form anatomically definite annual rings. Alternative indicators of annual rings, such as the oxygen (δ18Owc) and carbon stable isotope ratios of wood cellulose (δ13Cwc), have ...
S. Ohashi +7 more
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BioResourcesThe accumulation and allocation of heavy metals—arsenic (As), strontium (Sr), palladium (Pd), and vanadium (V)—were measured in Pinus nigra wood over more than three centuries.
I. Koç
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