Results 21 to 30 of about 14,525 (254)

Comparison of the Structure of Juvenile and Mature Wood of Larix decidua Mill. from Fast-Growing Plantations in Poland

open access: yesBioResources, 2017
The main objective of this study was to reveal variations in the wood structure and to define the location of the boundary between juvenile and mature wood Larix decidua Mill. from fast growing tree plantations.
Piotr Boruszewski   +2 more
doaj   +1 more source

Physical Properties of Thermally Modified Juvenile and Mature Wood of Hevea brasiliensis (Euphorbiaceae)

open access: yesFloresta e Ambiente, 2020
Exposing timber to temperatures approaching 200 °C causes thermal modification and changes its characteristics. This study evaluates the effect of various levels of thermal treatment on the physical properties of juvenile and mature wood from rubber tree
Fred Willians Calonego   +3 more
doaj   +1 more source

Calorific Value and Chemical Properties in Juvenile and Mature Wood of Thermally-Modified Eucalyptus Grandis

open access: yesDrvna Industrija, 2016
During thermal modification, timber is exposed to temperatures approaching 200 ºC for several hours and wood properties change. This study was aimed at evaluating the calorific value and chemical properties of juvenile and mature wood of thermally ...
Fred Willians Calonego   +5 more
doaj   +1 more source

Intra-tree models of juvenile wood in Norway spruce as an input to simulation software

open access: yesSilva Fennica, 2002
Juvenile wood found in the first 5–25 growth rings of a conifer has a structure and properties that differ from mature wood. Juvenile wood is therefore said to influence processing and the end-use of sawn products.
Lindström, Håkan
doaj   +1 more source

Juvenile-mature wood evaluation along the bole considering the influence of silvicultural treatments

open access: yesMaderas: Ciencia y Tecnología, 2021
Wood use for structural purposes has increased in the last decade in Spain. However, as a raw material, wood needs to comply with requirements that are not always present.
Antonio Ruano, Eva Hermoso
doaj  

Comparative analysis of longitudinal compressive and bending properties of hydrothermal-treated juvenile and mature elm wood [PDF]

open access: yesBioResources, 2013
The longitudinal compressive and multi-directional bending properties after hydrothermal treatment of juvenile and mature elm wood were analyzed.
Da Tong, Yan Zhang, Kuiyan Song
doaj  

Physical Properties of Juvenile Wood of Two Paulownia Hybrids

open access: yesDrvna industrija, 2020
U današnje je vrijeme zamjetan sve češći trend sadnje brzorastućih vrsta drveća (ophodnje od 5 do 10 godina). Te su vrste primarno namijenjene proizvodnji drvnih vlakana i biomase, ali svakako je vidljiv i njihov potencijal u proizvodima od cjelovitog drva. Jedna od brzorastućih vrsta je Paulownia sp., koju odlikuje izrazito brz rast.
Sedlar, Tomislav   +5 more
openaire   +5 more sources

Analysis of coniferous species to identify and distinguish juvenile and mature wood

open access: yesJournal of Forest Science, 2014
We conducted to describe methods used to differentiate the zones of juvenile and mature wood in stems of coniferous species and to present the importance of good identification of the shares of both types of wood to ensure a rational use of the raw ...
M. Nawrot   +4 more
doaj   +1 more source

Relationships among tissues, biofluids, and otolith selenium concentrations in wild female burbot (Lota lota)

open access: yesIntegrated Environmental Assessment and Management, EarlyView., 2023
Abstract In the Lake Koocanusa‐Kootenai River system (Montana, USA and British Columbia, Canada), selenium (Se) contamination has become an international concern and is suspected to contribute to the observed burbot (Lota lota) population collapse. Due to our limited ability to sample burbot in Lake Koocanusa for monitoring studies, we used a reference
Stephanie D. Graves   +6 more
wiley   +1 more source

Inheritance of wood properties and their radial variations in full-sib families of 36-year-old Japanese larch (Larix kaempferi (Lamb.) Carr.)

open access: yesAnnals of Forest Science, 2023
Key message Larger differences of maximum load among families were found in mature wood compared to juvenile wood, suggesting the possibility of improving mature wood with higher resistance to rupture and maintaining characteristics of material in Larix ...
Yusuke Takahashi   +8 more
doaj   +1 more source

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