Results 11 to 20 of about 6,030,938 (261)

Basic wood density tree species of Cerradão physiognomy in the state of Tocantins

open access: yesPesquisa Florestal Brasileira, 2015
The aim of this study was to analyze the basic density of tree species of Cerradão phytophysiognomy in Cerrado domain in the state of Tocantins, and establish the relationship between the wood basic density of stems and branches. Samples of 80 trees were
Carlos José da Silva   +2 more
doaj   +2 more sources

The Rayleigh–Taylor instability of two-dimensional high-density vortices [PDF]

open access: yes, 2005
We investigate the stability of variable-density two-dimensional isolated vortices in the frame of incompressible mixing under negligible gravity. The focus on a single vortex flow stands as a first step towards vortex interactions and turbulent mixing ...
Fontane, Jérôme   +2 more
core   +1 more source

Corrected basic wood density (BWD) values by species.

open access: yes, 2022
Corrected basic wood density (BWD) values by species.
Kevin D. Lafferty (8135868)   +4 more
core   +1 more source

Arbitrary choice of basic variables in density functional theory : Formalism [PDF]

open access: yes, 2004
The Hohenberg-Kohn theorem of the density functional theory (DFT) is extended by modifying the Levy constrained-search formulation. The theorem allows us to choose arbitrary physical quantities as basic variables which determine the ground-state ...
Higuchi, M   +3 more
core   +1 more source

A study of teak wood quality from community forests in Gunungkidul  IV. Mechanical Properties

open access: yesJurnal Ilmu Kehutanan, 2015
Mechanical properties of sawn timber are the most important characteristics in many applications, particularly for structural timber. The previous paper in this series reported on the physical properties of teak trees at different sites (Panggang, Playen,
Sri Nugroho Marsoem   +4 more
doaj   +1 more source

High deuteron and neutron yields from the interaction of a petawatt laser with a cryogenic deuterium jet

open access: yesFrontiers in Physics, 2023
A compact high-flux, short-pulse neutron source would have applications from nuclear astrophysics to cancer therapy. Laser-driven neutron sources can achieve fluxes much higher than spallation and reactor neutron sources by reducing the volume and time ...
X. Jiao   +25 more
doaj   +1 more source

Water Flow Evaluation in Eucalyptus and Corymbia Short Logs

open access: yesFloresta e Ambiente, 2018
The aim of this study is to evaluate the free and adsorbed water flow in short logs of Eucalyptus urophylla and Corymbia citriodora clones. 40 cm long, short logs were extracted from the base of the trees. Three trees each of C.
Thiago Monteiro   +4 more
doaj   +1 more source

BASIC WOOD DENSITY, FIBER DIMENSIONS, AND WOOD CHEMICAL COMPOSITION OF FOUR Eucalyptus SPECIES PLANTED IN SOUTHERN BRAZIL

open access: yesRevista Árvore, 2023
In the Brazilian planted forest sector, most of the species used are from the genus Eucalyptus. Even though Southern Brazil has a suitable climate for species of the genus Pinus, the planting of frost-resistant Eucalyptus species has been increasing ...
Eraldo Antonio Bonfatti Júnior   +8 more
doaj   +1 more source

The wide variation of amazonian stocked hardwoods affecting natural resistance to arboreal termites over time

open access: yesMaderas: Ciencia y Tecnología
After forest suppression in mining areas, deterioration of stocked tropical hardwoods occurs at different rates and levels. Prioritizing logs to avoid wastage is challenging because the wide interspecific variability of wood traits makes natural ...
Ana Kelly de Sousa Silva   +11 more
doaj   +1 more source

Wood Basic Density for 156 tree forest species-V2

open access: yes, 2022
This data set provides the basic wood density values for 156 tree species obtained from 110605 increment cores (one core per tree) sampled during four consecutive years (2016-2019) by the French NFI within the XyloDensMap project (Leban et al., 2016 ...
Chabot, Sandrine   +11 more
core   +1 more source

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