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You searched for: Journal Wood science and technology Remove constraint Journal: Wood science and technology Publication Year 2006 Remove constraint Publication Year: 2006 Source 2006 v.40 no.3 Remove constraint Source: 2006 v.40 no.3
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1. A comparison of selected acoustic signal analysis techniques to evaluate wood surface roughness produced during routing

Author:
Iskra, P.; Tanaka, C.
Source:
Wood science and technology 2006 v.40 no.3 pp. 247-259
ISSN:
0043-7719
Subject:
Fagus crenata; acoustics; correlation; filters; linear models; monitoring; surface roughness; wood
Abstract:
... This study examines the applicability of several signal analyzing methods applied to audio signals to establish relationships between audio signals generated during machining and the surface roughness produced. One-third octave passband filters were also used to condition audio signals acquired during routing of Japanese beech (Fagus crenata Blume) at different machining conditions. The one-third ...
DOI:
10.1007/s00226-005-0059-0

2. Acoustic measurements on standing trees, logs and green lumber

Author:
Grabianowski, M.; Manley, B.; Walker, J.C.F.
Source:
Wood science and technology 2006 v.40 no.3 pp. 205-216
ISSN:
0043-7719
Subject:
Pinus radiata; acoustics; bark; cutting; lumber; mechanical properties; trees; wood; wood mechanical properties
Abstract:
... Acoustics provide opportunities for non-destructive evaluation of the mechanical properties of wood, especially stiffness. In this work, Fakopp 2D a time of flight (TOF) tool and WoodSpec a resonance-based system were used. In a scoping study on young Pinus radiata trees (aged 8-11) no systematic differences were found between the Fakopp acoustic velocity on opposite sides of young trees. These Fa ...
DOI:
10.1007/s00226-005-0038-5

3. Adhesive performance of woods treated with alternative preservatives

Author:
Lee, D.H.; Lee, M.J.; Son, D.W.; Park, B.D.
Source:
Wood science and technology 2006 v.40 no.3 pp. 228-236
ISSN:
0043-7719
Subject:
Larix kaempferi; Pinus koraiensis; preservatives; shear strength; softwood
Abstract:
... The extended use of woods treated with traditional or alternative preservatives for exterior applications requires an assessment of wood adhesive performance. This study attempts to evaluate the performance of wood adhesives for woods treated with various waterborne preservatives. Two softwood species, i.e. Korean pine (Pinus koraiensis Sieb. et Zucc.) and Japanese Larch (Larix leptolepis [Sieb. e ...
DOI:
10.1007/s00226-005-0036-7

4. Development and variation of wood density, kraft pulp yield and fibre dimensions in young Norway spruce (Picea abies)

Author:
Molteberg, D.; Hoibo, O.
Source:
Wood science and technology 2006 v.40 no.3 pp. 173-189
ISSN:
0043-7719
Subject:
provenance; models
Abstract:
... Important wood, pulp and fibre properties were investigated on small wood samples from two Rumanian, one German and one Norwegian provenance of Norway spruce (Picea abies) grown in Sorkedalen, Norway. Several samples were collected from inside each single tree, both in radial and transversal direction in the stem. Data were collected from a total of 59 trees, each 28 years of age. All investigated ...
DOI:
10.1007/s00226-005-0020-2

5. Effect of growth conditions on wood density of Spanish Pinus nigra

Author:
Gutierrez Oliva, A.; Baonza Merino, V.; Fernandez-Golfin Seco, J.I.; Conde Garcia M.; Hermoso Prieto, E.
Source:
Wood science and technology 2006 v.40 no.3 pp. 190-204
ISSN:
0043-7719
Subject:
Pinus nigra
Abstract:
... The natural forests of Laricio Pine (Pinus nigra Subsp. salzmannii) cover in Spain an area of 353,000 ha, producing annually 310,000 m3 of roundwood. This species is considered as the fourth, most important Spanish conifer, being its timber frequently used in construction. The natural area of distribution of Laricio pine in Spain is officially divided into ten different regions of provenance, bein ...
DOI:
10.1007/s00226-005-0014-0

6. Modeling the dielectric properties of wood

Author:
Daian, G.; Taube, A.; Birnboim, A.; Daian, M.; Shramkov, Y.
Source:
Wood science and technology 2006 v.40 no.3 pp. 237-246
ISSN:
0043-7719
Subject:
dielectric properties; electric field; internal temperature; mathematical models; simulation models; water content; wood anatomy; wood processing; wood properties
Abstract:
... A method for calculating the complex dielectric permittivity of an anisotropic wood structure at microwave frequencies is presented. A numerical model for describing the 3D wood structure containing fibers, rays, vessels and cracks with changeable dimensions and material composition is built. This model is introduced into an efficient solver that calculates the effective dielectric constant of any ...
DOI:
10.1007/s00226-005-0060-7

7. Modified hardwood sawdust as adsorbent of heavy metal ions from water

Author:
Sciban, M.; Klasnja, M.; Skrbic, B.
Source:
Wood science and technology 2006 v.40 no.3 pp. 217-227
ISSN:
0043-7719
Subject:
Quercus velutina; Robinia pseudoacacia; adsorbents; adsorption; formaldehyde; hardwood; heavy metals; leaching; metal ions; sawdust; sodium hydroxide
Abstract:
... The sawdust of oak and black locust hardwood was found to have good adsorption capacities for heavy metal ions. The leaching of coloured organic matters during the adsorption can be prevented by each of the following pre-treatments of adsorbents: with formaldehyde in acidic medium, with sodium hydroxide solution after formaldehyde treatment, or with sodium hydroxide only. The studies indicated tha ...
DOI:
10.1007/s00226-005-0061-6