Results 11 to 20 of about 1,278,526 (294)
Experimental study of locally loaded timber in compression perpendicular to the grain [PDF]
, 2011 Since the test method for compression strength perpendicular to the grain was changed from a partial area to a full area loading test, strength values for softwood in EN 338 were significantly reduced.
Louis-Etienne Denaud +7 more
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Possibility of using non-destructive spectrophotometery to detect the poplar tension wood and spruce compression wood in freshly cut and dried timbers [PDF]
تحقیقات علوم چوب و کاغذ ایران, 2012 In this study, the potential use of spectrophotometery and CIELAB technique was evaluated to detect reaction woods, including poplar tension wood and spruce compression wood. Thus, two trees of spruce ( Picea abies) and poplar (Populous nigra) containing
Zinab Frozan +2 more
doaj +1 more source
Mechanical properties of compressed wood
Construction and Building Materials, 2021 Wood is a natural composite material. However, its relatively low mechanical properties restrict the use in advanced structural applications but recent studies have shown that Compressed Wood (CW), with superior mechanical properties due to material densification, could be utilised in timber products and timber connections as an alternative to energy ...
Siavash Namari +11 more
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Mechanics of the Compression Wood Response [PDF]
Plant Physiology, 1970 Righting of two tilted white pine (Pinus strobus L.) stem leaders by compression wood formation was followed for 16 weeks. The natural curves and three deflection curves under added end loads were determined from weekly field photographs. Data for self-loading and cross sectional diameters were interpolated from original estimated and final ...
R R, Archer, B F, Wilson
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Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2010 The paper is aimed at the field of the microscopic structure of wood dealing with the description of the most important anatomic element in softwood – tracheids in a stem with the occurrence of reaction wood.
Vladimír Gryc, Hanuš Vavrčík
doaj +1 more source
Frontiers in Genetics, 2022 Compression wood (CW) in gymnosperm brings great difficulties to wood industry using wood as raw materials since CW presents special wood structure and have different physical and chemical properties from those of normal wood (NW).
Zekun Zhang +14 more
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Stem straightness and compression wood in a 22-year-old stand of container-grown Scots pine trees
Silva Fennica, 2004 The distribution of compression wood in relation to eccentric growth and development of stem straightness was studied in a 22-year-old Scots pine (Pinus sylvestris L.) stand in central Sweden that was established with container-grown seedlings.
Warensjö, Mats, Rune, Göran
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EFFECT OF COMPRESSION WOOD ON SOME CHEMICAL PROPERTIES OF Pinus brutia Ten. LEANING TREES [PDF]
Mesopotamia Journal of Agriculture, 2011 This study was conducted to show the effect of compression wood on some chemical characteristics of brutia pine Pinus brutia Ten. trees growing naturally at Dohuk provenance and to compare it with the normal growing trees (tree leaning type) for four ...
Abdulrazak R. S. Almalah
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Journal of Wood Science, 2021 The sapwood and heartwood of plantation sugi wood (Cryptomeria japonica), and plantation hinoki (Chamaecyparis obtusa) wood were flat-sawn into timbers, then kiln-dried to a MC level below 12%. These timbers were further processed into specific sizes and
Rongfeng Huang +3 more
doaj +1 more source
Density Range of Compression-Molded Polypropylene-Wood Composites [PDF]
, 2007 Wood and polypropylene fibers were mixed together in various proportions and compression-molded to boards of various specific gravities. The full theoretical specific gravity range could not be obtained even when the boards were cooled in the press ...
Clemons, Craig M. +2 more
core +1 more source