Results 11 to 20 of about 130,134 (307)

Thinning influences wood properties of plantation-grown Eucalyptus nitens at three sites in Tasmania

open access: yes, 2021
Thinning of forestry plantations is a common silviculture practice to increase growth rates and to produce larger dimension logs. The wood properties, basic density and stiffness, are key indicators of the suitability of timber for particular purposes ...
Downes, GM (15487976)   +7 more
core   +2 more sources

Effects of radial growth rate on juvenile wood properties of Pinus sylvestris planted in Mongolia

open access: yes, 2023
The establishment of forest plantations in boreal zones in Mongolia is important for wood production as well as carbon dioxide fixation. The present study aims to elucidate the juvenile wood properties (basic density, modulus of elasticity [MOE], modulus
Yokota, Shinso   +6 more
core   +1 more source

Estimation of finite population mean in two-phase sampling with known coefficient of variation of an auxiliary character

open access: yesStatistica, 2013
In this paper a double (or two-phase) sampling version of (Singh and Tailor, 2005) estimator has been suggested along with its properties under large sample approximation. It is shown that the estimator due to (Kawathekar and Ajgaonkar, 1984) is a member
Housila P. Singh   +2 more
doaj   +1 more source

Comparison of some wood properties of juvenile black pines of different origin planted in the same habitat

open access: yesMaderas: Ciencia y Tecnología, 2021
Black pine (Pinus nigra) is a significant raw material source for the forest products industry in Turkey. The purpose of this research was to study some chemical, anatomical, physical, and mechanical properties of wood obtained from juvenile black pines
Mustafa Burak Arslan   +5 more
doaj   +1 more source

A ratio-cum-product estimator of population mean in stratified random sampling using two auxiliary variables

open access: yesStatistica, 2013
This paper proposes a ratio-cum-product estimator of finite population mean in stratified random sampling using information on population means of two auxiliary variables.
Rajesh Tailor   +3 more
doaj   +1 more source

ABOVE-GROUND BIOMASS AND SOME WOOD PROPERTIES OF 30- YEARS- OLD CHRYSOPHYLLUM OLIVIFORME AND TAMARINDUS INDICA TREES GROWN IN ASWAN, EGYPT [PDF]

open access: yesJournal of Plant Production, 2012
Aboveground-tree biomass and some wood properties (specific gravity, moisture content, extractive content, cellulose, hemicellulose, holocellulose and ash content) were measured in 30-year-old of two tree species: Chrysophyllum oliviforme L.
R. Sayed
doaj   +1 more source

Effect of Additional Mass on the Apparent Young’s Modulus of a Wooden Bar by Longitudinal Vibration

open access: yesBioResources, 2014
We investigated the influence of an additional mass bonded on a wooden bar on its apparent Young’s modulus based on a longitudinal vibration theory. Rectangular bars of Sitka spruce (Picea sitchensis Carr.) were used as experimental materials.
Yoshitaka Kubojima   +2 more
doaj   +1 more source

Stand structure and anatomical, physical and mechanical characterisation of sessile oak (Quercus petraea Liebl.) wood from central Italy aged coppices.

open access: yesAnnals of Silvicultural Research, 2020
The present paper aims to implement the knowledge on sessile oak (Quercus petraea (Matt.) Liebl.) in Mediterranean area where, although present, for natural or anthropogenic causes, the species is rare.
Michele Brunetti   +5 more
doaj   +1 more source

Effect of microwave drying on drying kinetics, physico-mechanical properties, and microstructure of plantation-grown Hevea brasiliensis wood

open access: yesiForest - Biogeosciences and Forestry
We explored the microwave drying of rubber tree (Hevea brasiliensis) wood using a multifaceted approach that encompasses various aspects. The primary objective was to examine drying behavior, drying time, moisture distribution across the core and surface,
Sharma R, Mishra K, Sethy AK, Kumar R
doaj   +1 more source

Radial variations of broad-sense heritability in wood properties and classification of load–deflection curves in static bending for six half-sib families of Chamaecyparis obtusa

open access: yesJournal of Wood Science, 2022
Wood properties (annual ring width, tracheid length, microfibril angle [MFA], basic density, and air-dry density) and mechanical properties (modulus of elasticity [MOE], modulus of rupture [MOR], bending work, and compressive strength) in 34-year-old ...
Yusuke Takahashi   +8 more
doaj   +1 more source

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