Results 31 to 40 of about 2,506,898 (155)

Effects on radial growth rate on basic density and compressive strength in 10-year-old Swietenia macrophylla planted in South Kalimantan, Indonesia

Forest Science and Technology
To evaluate the effect of radial growth rate on wood properties (basic density and compressive strength parallel to the grain under green conditions), standing tree characteristics (stem diameter, tree height, and stress-wave velocity of stems) were ...
Anak Agung Ayu Ratih Frismanti, Wiwin Tyas Istikowati, Ikumi Nezu, Jyunichi Ohshima, Shinso Yokota, Futoshi Ishiguri   +5 more
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Variación radial y longitudinal de la densidad básica en árboles de Eucalyptus regnans de 16 años

Maderas: Ciencia y Tecnología, 2014
La variación radial y longitudinal de la densidad básica de la madera, a lo largo del fuste, fueron determinadas en árboles de una plantación de Eucalyptus regnans de 16 años, crecida en la Costa de la Provincia de Arauco, Chile.
Margarette Omonte, Luis Valenzuela
doaj  

Variation in wood density between mature sessile oak and English oak trees growing in different vegetation zones

Journal of Forest Science
Wood density is a fundamental functional trait influencing ecological adaptation, hydraulic safety, and timber utilisation in temperate hardwoods. This study investigated variation in wood density (12% moisture) across mature stands of two economically ...
Vladimír Gryc, Kyriaki Giagli, Sergei Mikhailov, Marko Stojanović, Dimitrios Tsalagkas, Hanuš Vavrčík, Petr Horáček   +6 more
doaj   +1 more source

Variação anatômica radial do lenho de açoita-cavalo (Luehea divaricata) e sua influência na densidade aparente. Radial variation of wood anatomy in açoita-cavalo (Luehea divaricata) and its influence on the specific gravity. [PDF]

Revista do Instituto Florestal, 2009
Variações entre as dimensões e frequênciasdas células da madeira existem entre espéciesdiferentes, entre indivíduos da mesma espécie ouainda dentro da mesma árvore nas direções radial eaxial.
Eduardo Luiz LONGUI, Israel Luiz de LIMA, Sandra Monteiro Borges FLORSHEIM, Alaor BUFOLO   +3 more
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Grey-box radial basis function modelling

, 2011
A fundamental principle in data modelling is to incorporate available a priori information regarding the underlying data generating mechanism into the modelling process.
Xia Hong, Hong, Xia, Sheng Chen, Chris J. Harris, Chen, Sheng, Harris, Chris J., Harris, Chris   +6 more
core   +2 more sources

Competition indices and the prediction of radial growth in Scots pine.

Silva Fennica, 1987
The effect of competition on the radial growth of Scots pine ( L.) was studied in three naturally regenerated stands located in North Karelia, Finland. The competition situation of an individual tree was described with various competition indices which ...
Pukkala, Timo, Kolström, Taneli
doaj   +1 more source

Evaluation of Approximate Expressions to Calculate the Area of the Intersection between a Sphere and a Cylindrical Plane

Powders, 2022
Cylindrical packed beds of spheres are found in many industrial and practical applications where heat and mass transfer and fluid flow occur. A proper understanding of the porous structure is imperative for the analysis and design of the performance of ...
Charl Gabriël Du Toit
doaj   +1 more source

P2.03 AORTIC, BUT NOT RADIAL PRESSURE GIVES A MODEL INDEPENDENT ESTIMATE OF CEREBRAL ARTERY CRITICAL CLOSING PRESSURE

Artery Research, 2013
Objectives: Cerebral artery critical closing pressure (CCP) is an estimated parameter with no single accepted method of calculation. Variation between methods could be significant.
M.O. Kim, M. Butlin, Y. Li, F. Wei, J. Wang, M. O’Rourke, A.P. Avolio   +6 more
doaj   +1 more source

Orthogonal least squares algorithm for training multi-output radial basis function networks [PDF]

, 1991
A constructive learning algorithm for multioutput radial basis function networks is presented. Unlike most network learning algorithms, which require a fixed network structure, this algorithm automatically determines an adequate radial basis function ...
S. Chen, Cowan, C. F. N., Chen, Sheng, Grant, P. M., P.M. Grant, C.F.N. Cowan, Cowan, C.F.N., Grant, P.M., Chen, S.   +8 more
core   +1 more source

Doğal ve Plantasyonda Yetişen Kızılağaç (Alnus glutinosa L. Gaertner) Odunlarının Yıllık Halka Genişliği ve Lif Boyutlarının Radyal Değişimi

Düzce University Faculty of Forestry Journal of Forestry, 2016
Devam eden orman endüstri gelişiminin, yapısal odunun tüketiminin ve talebin artması nedeni ile hızlı büyüyen ağaçların plantasyonları endüstriyel odun hammaddesinin sürdürülebilirliği için önemli hale gelmektedir.
Kamile Tırak Hızal, Nurgün Erdin
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