Zobrazeno 1 - 10
of 50
pro vyhledávání: '"T. Rypstra"'
Publikováno v:
Maderas: Ciencia y Tecnología, Vol 12, Iss 3 (2014)
Non-destructive testing for drying defects in Eucalyptus grandis utility poles would be highly advantageous. These defects can negatively affect creosote preservative treatment and in-service performance. The objective of this study was to assess cor
Externí odkaz:
https://doaj.org/article/cd461c492c524703afe852cc7593fb04
Publikováno v:
Maderas: Ciencia y Tecnología, Vol 12, Iss 3, Pp 199-208 (2010)
Non-destructive testing for drying defects in Eucalyptus grandis utility poles would be highly advantageous. These defects can negatively affect creosote preservative treatment and in-service performance. The objective of this study was to assess cor
Externí odkaz:
https://doaj.org/article/a7aa5df6af4144b6b3b8dd081fa2b2ee
Publikováno v:
ORiON, Vol 21, Iss 2 (2005)
The power of canonical variate analysis (CVA) biplots, when regarded as extensions of ordinary scatterplots to describe variation and group structure in multivariate observations, is demonstrated by presenting a case study from the South African wood
Externí odkaz:
https://doaj.org/article/b78cd0bfd97f4caa8aa037442cece9cc
Publikováno v:
Southern Forests: a Journal of Forest Science. 77:213-219
Reduction in the rotation ages of softwood saw-log plantations in South Africa is causing increased proportions of low stiffness sawn lumber at final harvest. It has been shown for some species that the microfibril angle (MFA) of the S2 layer of trac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f35c2b6182e6f49faeaf757df6296960
https://doi.org/10.2989/20702620.2015.1031575
https://doi.org/10.2989/20702620.2015.1031575
Publikováno v:
European Journal of Forest Research. 134:1-18
Pinus patula is the most intensively planted conifer in the tropics and subtropics. The increased proportion of corewood that results when rotation ages of pine plantations are shortened has become a wood quality factor of growing concern worldwide.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e2eeebdd28cd8baca27eb3d54df6c2f3
https://doi.org/10.1007/s10342-014-0829-z
https://doi.org/10.1007/s10342-014-0829-z
Publikováno v:
Southern Forests: a Journal of Forest Science. 76:37-46
The objective of this study was to examine the variation in and intercorrelation among wood properties determining the suitability of 16- to 20-year-old South African-grown Pinus patula trees for structural timber. A total of 1 112 sawn boards from 3
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0619240085c91c52eb3fe1f9361c6ca4
https://doi.org/10.2989/20702620.2013.870406
https://doi.org/10.2989/20702620.2013.870406
Publikováno v:
Journal of Wood Chemistry and Technology. 33:157-173
The alkaline extraction of hemicelluloses from hardwoods prior to pulping, for further conversion to value-added products, seems to be a promising pathway for paper mills to increase profit and improve sustainability. However, the amount of hemicellu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f3f61c950592f60b3d5e91e0153b8a8e
https://doi.org/10.1080/02773813.2013.773040
https://doi.org/10.1080/02773813.2013.773040
Publikováno v:
European Journal of Forest Research. 130:881-893
The accurate prediction of the mechanical properties that can be expected from timber from standing trees has many benefits for the growers and processors of trees. It includes support in tree breeding selection, tree processing allocation decisions,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4f948d7c8c733cfacd9860d571dabb09
https://doi.org/10.1007/s10342-011-0484-6
https://doi.org/10.1007/s10342-011-0484-6
Publikováno v:
Southern Forests: a Journal of Forest Science. 72:173-179
Pinus patula is the softwood species most extensively planted in South Africa. However, large portions of these plantings are under threat from Sirex noctilio infestation and occasional forest fires. In this exploratory investigation, the effects of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d4ab08086977e8313641ed67fc3e7005
https://doi.org/10.2989/20702620.2010.547269
https://doi.org/10.2989/20702620.2010.547269
Autor:
J. P. J. Swart, Sugnet Gardner-Lubbe, Niel J. le Roux, T. Rypstra, Andrea van Heerden, Alfred Botha
Publikováno v:
Wood Science and Technology. 45:237-248
Chemical alterations following inoculation of Acacia mearnsii, Eucalyptus dunnii, E. grandis, and E. macarthurii with a Pycnoporus sanguineus/Aspergillus flavipes co-culture were investigated. Several wood chemical parameters were measured using stan
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b50485759de06d4be97ad9b9e602e354
https://doi.org/10.1007/s00226-010-0318-6
https://doi.org/10.1007/s00226-010-0318-6