Results 1 to 10 of about 2,951,578 (245)

Does Cedrela always form annual rings? Testing ring periodicity across South America using radiocarbon dating. [PDF]

Trees (Berl West), 2017
Tropical tree rings have the potential to yield valuable ecological and climate information, on the condition that rings are annual and accurately dated.
Baker JCA, Santos GM, Gloor M, Brienen RJW.   +3 more
europepmc   +8 more sources

Thickness Analysis of Beech Stems Using Annual Rings [PDF]

Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2021
This article deals with the evaluation of a thickness analysis on the vuts of beech wood using annual rings. The study was performed at the state enterprise Lesy SR, a branch plant in Smolenice on the territory of Forrest District Majdán.
Michal Daniš, Jindřich Neruda
doaj   +2 more sources

Annual Rings of Growth in Carboniferous Wood [PDF]

Botanical Gazette, 1921
In a discussion of anatomical structure and climatic evolution, JEFFREY, emphasizes the absence of annual rings in Cordaitean wood from the Carboniferous in latitudes south of England as indicative of uniformity of climate, in contrast with the conditions in the Triassic period, in which coniferous wood with annual rings is found as far south as ...
W. Goldring
semanticscholar   +2 more sources

Variation in Mechanical Properties within Individual Annual Rings in the Resonance Spruce Wood (Picea abies (L.) Karst.)

Drvna Industrija, 2014
This paper shows results of specific elastic modulus and specific tensile strength in the resonance spruce wood [Picea abies (L.) Karst.] in relation to its heterogeneity within individual annual rings.
Waldemar Moliński, Edward Roszyk, Jakub Puszyński   +2 more
doaj   +2 more sources

Determination of the number of sapwood annual rings in oak in the region of southern Moravia

Journal of Forest Science, 2006
The paper deals with the determination of the number of sapwood annual rings in oak (Quercus sp.) in relation to altitude, locality and stand age. Several different groups of samples were used from two localities of southern Moravia.
M. Rybníček, H. Vavrčík, R. Hubený
doaj   +2 more sources

Directional variance analysis of annual rings

Journal of Physics: Conference Series, 2010
The wood quality measurement methods are of increasing importance in the wood industry. The goal is to produce more high quality products with higher marketing value than is produced today.
P. Kumpulainen, K. Marjanen
semanticscholar   +2 more sources

ANNUAL RINGS OF TREE GROWTH

Monthly Weather Review, 1905
R. A. Edwards
semanticscholar   +3 more sources

Automatic detection of annual rings and pith location along Norway spruce timber boards using conditional adversarial networks

Wood Science and Technology, 2021
In the woodworking industry, detection of annual rings and location of pith in relation to timber board cross sections, and how these properties vary in the longitudinal direction of boards, is relevant for many purposes such as assessment of shape ...
Tadios Habite, Osama Abdeljaber, A. Olsson   +2 more
semanticscholar   +1 more source

Radial growth of woody species in the conditions of high anthropogenic load in the city of Krasnoyarsk [PDF]

Сибирский лесной журнал, 2018
The dynamics of radial growth of tree stem developing in changing conditions of the city of Krasnoyarsk was studied. For Krasnoyarsk, The problem of creating an environment favorable for people living in Krasnoyarsk is an urgent issue and its integral ...
Yu. V. Klad’ko, V. E. benkova
doaj   +1 more source

Growth Rings in the Stem of Thuja orientalis L.

International Journal of Horticultural Science, 2000
During the winter dormancy period of 1998-99, the differentiation process of xylem and the formation of annual and pseudo-annual growth rings was studied in sections of the central stem of Thuja orientalis of different age (1-14 year old), starting from ...
G. Schmidt, Gy. Végvári
doaj   +1 more source