Results 191 to 200 of about 46,529 (242)
Some of the next articles are maybe not open access.
1981
Importing softwood is the largest section of the UK timber trade, in numbers of firms engaged, in volume of timber handled and in overall finance involved. (It accounts for approximately 54 per cent of the value of all timber imports.) The seasonal nature of the trade introduces its own problems, which are not reproduced to the same extent in the ...
Jack H. Leigh, Alan G. Randall
openaire +1 more source
Importing softwood is the largest section of the UK timber trade, in numbers of firms engaged, in volume of timber handled and in overall finance involved. (It accounts for approximately 54 per cent of the value of all timber imports.) The seasonal nature of the trade introduces its own problems, which are not reproduced to the same extent in the ...
Jack H. Leigh, Alan G. Randall
openaire +1 more source
Holzforschung, 1989
Essai d'un nouveau compose chimique a base de fer pour le marquage d'inscriptions sur divers bois ...
openaire +1 more source
Essai d'un nouveau compose chimique a base de fer pour le marquage d'inscriptions sur divers bois ...
openaire +1 more source
Pyrolysis kinetics and product properties of softwoods, hardwoods, and the nut shell of softwood
Korean Journal of Chemical Engineering, 2016The pyrolysis of softwoods (Pinus (P.) densiflora, P. koraiensis), hardwoods (Quercus acutissima and Liriodendron tulipifera) and nut shell of P. koraiensis was investigated using a thermogravimetric analyzer and fixed bed reactor. Thermogravimetric analysis showed that the maximum decomposition temperature of each biomass was influenced by the ash ...
Young-Min Kim +6 more
openaire +1 more source
1980
The secondary xylem of the conifers is commonly called softwood. This term can at times be misleading, however, as many coniferous woods are physically quite hard while some angiosperm hardwoods are, in fact, quite soft (e.g. balsa). Softwoods are simpler and more homogeneous in structure than hardwoods.
B. G. Butterfield, B. A. Meylan
openaire +1 more source
The secondary xylem of the conifers is commonly called softwood. This term can at times be misleading, however, as many coniferous woods are physically quite hard while some angiosperm hardwoods are, in fact, quite soft (e.g. balsa). Softwoods are simpler and more homogeneous in structure than hardwoods.
B. G. Butterfield, B. A. Meylan
openaire +1 more source
1995
Table 4.1 gives an alphabetical list of the softwood species described, their natural geographic distribution, and main regions of cultivation. In all, 42 species from 13 genera are described.
openaire +1 more source
Table 4.1 gives an alphabetical list of the softwood species described, their natural geographic distribution, and main regions of cultivation. In all, 42 species from 13 genera are described.
openaire +1 more source
Delignification of softwood by ozonation
Pure and Applied Chemistry, 2009Ozonation of aspen sawdust of various moisture content (MC) values was investigated. Ozone consumption corresponding to the completion of the ozonation process was shown to be governed by the wood MC. Cellulose-containing material of a low (1–3 %) residual lignin content (LC) was produced under ozonation. It is proposed that ozone dissolved in water is
Nadezhda A. Mamleeva +3 more
openaire +1 more source
Fracture behaviour of softwood
Mechanics of Materials, 2003Abstract In design wood is regarded as a brittle material, depending on the stress direction, duration of loading and moisture content. The usual presumption is that wood is perfectly brittle–elastic (linear elastic fracture mechanics, LEFM), or that its behaviour mimics other materials such as concrete.
Ian Smith, Svetlana Vasic
openaire +1 more source
Economic Geography, 1934
T nHE growing international trade in wood, pulp, and paper between the countries of the world has made the question of the forest resources of the world, and especially the softwood resources of the world, a matter of common interest. This interest centers around the two continents-Europe and North America-where almost ninetenths of the world's ...
openaire +1 more source
T nHE growing international trade in wood, pulp, and paper between the countries of the world has made the question of the forest resources of the world, and especially the softwood resources of the world, a matter of common interest. This interest centers around the two continents-Europe and North America-where almost ninetenths of the world's ...
openaire +1 more source
CONSOLIDATION OF SOFTWOOD ARTIFACTS
Studies in Conservation, 1971Consolidation of decayed wooden artifacts can be achieved by impregnation with epoxy prepolymer dissolved in a mixture of toluene and glycidyl ether and subsequent polymerization in situ. The principles of selecting the successful method of application are discussed, and the details of the procedure given.
openaire +1 more source
Investigation on reaction mechanism for CO2 gasification of softwood lignin by ReaxFF MD method
Energy, 2023Yunhui Pang, Xiaoli Zhu
exaly