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The ability of bacteria to induce brownstain in western hemlock

https://library.fpinnovations.ca/fr/permalink/fpipub5877
Auteur
Kreber, B.
Hedberg, B.
Date
March 1996
Édition
41145
Genre du document
Research report
Domaine
Sustainable Construction
Auteur
Kreber, B.
Hedberg, B.
Collaborateur
Canada. Canadian Forest Service.
Date
March 1996
Édition
41145
Genre du document
Research report
Description physique
7 p.
Secteur
Wood Products
Domaine
Sustainable Construction
Champ de recherche
Advanced Wood Materials
Sujet
Tsuga Heterophylla
Tsuga
Stain
Bacteria
Série
Canadian Forest Service No. 32 1/2
Contract no. 1715K024
W-1322
Localisation
Vancouver, British Columbia
Langue
English
Résumé
Three Gram negative bacteria isolated from brownstained western hemlock were investigated for their capacity to produce hemlock brownstain. Brownstain was observed when infecting western hemlock with two bacteria. Oxygen was strongly indicated as being indespensable for the development of brownstain in infected samples. However, pH did not seem to influence the production of this stain.
Tsuga heterophylla - Stains, Chemical
Stains - Chemical
Degradation, Bacterial
Bacteria
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Actes du colloque les ravageurs forestiers exotiques : prévenir pour protéger nos forêts, prévenir pour protéger nos marchés

https://library.fpinnovations.ca/fr/permalink/fpipub8598
Auteur
DesRochers, Pierre
Mercier, Guyta
Date
2009
Genre du document
Actes du colloque
Domaine
Fibre Supply
Auteur
DesRochers, Pierre
Mercier, Guyta
Date
2009
Genre du document
Actes du colloque
Description physique
111 p.
Secteur
Forest Operations
Domaine
Fibre Supply
Champ de recherche
Forestry
Sujet
Insects
Diseases
Insectes
Maladies
Exotiques
Nématode du pin
Réglementation phytosanitaire
Agrile du frêne
Longicorne asiatique
Longicorne brun de l’épinette
Sirex européen du pin
Infestation
Série
OT 134
Langue
English
Résumé
The purpose of the symposium was to raise awareness of the urgent need to act to protect our forests and markets from exotic forest pests. The objectives were to: increase or improve prevention and detection measures against exotic forest pests; to make known the degree of involvement of each actor concerned; and promote exchanges and networking. The objectives were: to increase or improve prevention and detection measures against exotic forest pests; to make known the degree of involvement of each stakeholder; and to promote exchanges and networking.
Résumé
Le colloque avait pour but de sensibiliser les participants à l’urgence d’agir pour protéger nos forêts et nos marchés contre les ravageurs forestiers exotiques. Les objectifs poursuivis étaient les suivants : augmenter ou améliorer les mesures de prévention et de détection contre les ravageurs forestiers exotiques; faire connaître le degré d’implication de chaque acteur concerné; et favoriser les échanges et le réseautage.
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Advancement in osb manufacturing technology

https://library.fpinnovations.ca/fr/permalink/fpipub5677
Auteur
Hsu, W.H.E.
Kirincic, S.
Date
January 1996
Édition
38830
Genre du document
Research report
Domaine
Wood Manufacturing & Digitalization
Auteur
Hsu, W.H.E.
Kirincic, S.
Date
January 1996
Édition
38830
Genre du document
Research report
Description physique
8 p.
Secteur
Wood Products
Domaine
Wood Manufacturing & Digitalization
Champ de recherche
Advanced Wood Manufacturing
Sujet
Thickness
Strands
Resin
Oriented strandboard
Localisation
Ottawa, Ontario
Langue
English
Résumé
Oriented strandboard (OSB) manufacturing technology has been advancing steadily during the past few years. Today, the industry can produce higher quality OSB at lower costs than ever before in the product's history. Research results have shown that drying costs can be reduced and strand quality can be improved through proper wood yard management, and that the production efficiency can be improved through various ways of optimizing the pressing and processing operations. OSB quality has been improved and board density has been reduced by using long and thin strands in panel face layers and relatively short and thick strands in the panel core. The press times have been reduced by using higher press temperatures and higher mat face-layer moisture contents. The degree of strand alignment has been improved by controlling the falling distance from the alignment heads to the top of mat being formed. Strands alignment has been further enhanced by arranging the alignment disc gaps in such a way so that narrower strands can be aligned through narrower gaps and directed towards core while wider strands can be aligned through wider gaps and directed towards the panel surfaces. Based on these technical advancements, OSB can be produced faster and at a lower density without sacrificing quality. Consequently, the OSB industry is in the position to improve panel quality without resorting to costly options such as increasing resin content and press time.
OSB
Advancement
Strand Thickness
Strand Width
Strand Length
Resin Content
Press Temperature
Moisture
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Alternate uses for wood treated with carbon-based preservatives at the end of service life

https://library.fpinnovations.ca/fr/permalink/fpipub42901
Auteur
Stirling, Rod
Daniels, C. Robert
Morris, Paul I.
Date
March 2009
Genre du document
Research report
Domaine
Sustainable Construction
Auteur
Stirling, Rod
Daniels, C. Robert
Morris, Paul I.
Collaborateur
Canadian Forest Service
Date
March 2009
Genre du document
Research report
Description physique
20 p.
Secteur
Wood Products
Domaine
Sustainable Construction
Champ de recherche
Advanced Wood Materials
Sujet
Waste utilization
Utilization
Recycling
Preservatives carbon
Preservatives
Série
W-2976
Localisation
Vancouver, British Columbia
Langue
English
Résumé
The absence of commercial facilities to recycle or recover value from wood treated with metal-based wood preservatives at the end of its service life is one of the most significant negative points in the generally positive life cycle analysis of treated wood. Wood treated with carbon-based preservatives (metal-free) may be far easier to recycle or recover value from since the preservatives are relatively vulnerable to thermal, chemical and biological breakdown. As a result they might be destroyed by kraft pulping, combustion or composting of treated wood. The present research evaluates the use of carbon-based preservative-treated wood in these processes. Kraft pulps produced from wood freshly treated with recommended loadings of carbon-based preservatives contained significant quantities of didecyldimethylammonium carbonate (DDAcarbonate), propiconazole and tebuconazole. However, lower preservative concentration in the wood and intensive pulping may be able to produce pulps without detectable preservatives. The azoles were also detected in significant quantities in the black liquor (DDAcarbonate was not analysed in black liquor). No azoles were found in the ash produced from combustion, but significant quantities were detected in the filtered smoke. DDAcarbonate was not detected in the filtered smoke. Analysis of DDAcarbonate in ash was inconclusive. A composting experiment has been set up and is in progress. Data on preservative breakdown during composting is expected next year.
RECYCLING
Preservatives - Carbon
Waste - Utilization for pulp
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Analysis of borate-treated L-joints after five years exposure and inspection after six years

https://library.fpinnovations.ca/fr/permalink/fpipub4367
Auteur
Morris, Paul I.
Ingram, Janet K.
Date
July 1996
Édition
41141
Genre du document
Research report
Domaine
Sustainable Construction
Auteur
Morris, Paul I.
Ingram, Janet K.
Date
July 1996
Édition
41141
Genre du document
Research report
Description physique
20 p.
Secteur
Wood Products
Domaine
Sustainable Construction
Champ de recherche
Advanced Wood Materials
Sujet
Preservatives boron
Preservatives
Série
1710C487
W-1313
Localisation
Vancouver, British Columbia
Langue
English
Résumé
As a result of its potential as an added-value, environmentally acceptable, high performance wood product, borate-treated lumber has attracted the interest of the Canadian forest products industry (Byrne 1990). One of the potential markets for borate-treated wood in Europe and North America is millwork. Currently millwork manufacturers use light organic solvent preservatives to provide durability to their products but there are a number of reasons why this situation may change in the near future. There are increasing pressures on uncontrolled emission of volatile organic solvents from treated wood and public concerns regarding some of the active ingredients now in use (Orsler and Holland 1993). The use of borate-treated wood eliminates both of these problems and may provide some additional advantages by eliminating batch processing in the manufacture of joinery. The one factor which is likely to have the greatest impact on the performance of borate-treated millwork is the mobility of the boron. Borate-treated wood is currently approved for use in exterior exposure in New Zealand provided it has a three-coat paint finish. Nevertheless there is concern outside New Zealand that redistribution of boron within the treated wood could lead to localized depletion and decay. An L-joint test of borate-treated wood was set up by Forintek to determine whether preservative depletion and subsequent decay is likely to be a problem. This report describes the performance results of this trial after six years and compares borate content of the L-joints initially and after five years exposure.
Preservatives - Boron
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Analysis of western red cedar heartwood extractives by liquid chromatography/mass spectrometry and identification of unknown compound J

https://library.fpinnovations.ca/fr/permalink/fpipub1428
Auteur
Daniels, C. Robert
Stirling, Rod
Date
February 2009
Édition
37928
Genre du document
Research report
Domaine
Sustainable Construction
Auteur
Daniels, C. Robert
Stirling, Rod
Date
February 2009
Édition
37928
Genre du document
Research report
Description physique
23 p.
Secteur
Wood Products
Domaine
Sustainable Construction
Champ de recherche
Advanced Wood Materials
Sujet
Thuja
Thuja plicata
Série
General Revenue Report Project No. 3807
W-2604
Localisation
Vancouver, British Columbia
Langue
English
Résumé
To better understand the role extractives play in western red cedar’s decay resistance, commonly detected but unknown extractives need to be identified and evaluated for their potential contribution to natural durability. A new liquid chromatography/mass spectrometry (LC/MS) method for separating extractives from western red cedar has been developed. Mass spectral detection provides useful structural information that gives increased confidence in peak identifications and helps to identify unknown peaks. Using LC/MS data, combined with data from UV and NMR spectroscopy, unknown compound J commonly found in many samples of WRC we have analysed, was identified as alpha-thujaplicin. This was known to be a major extractive in eastern white cedar but was considered to be a negligible component of WRC. Its potential contribution to the durability of WRC has not been considered in previous work attempting to correlate durability to specific extractives.
Thuja plicata - Extractives
Thujaplicins
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An analysis of Dodge’s escape fire on the 1949 Mann Gulch fire in terms of a survival zone for wildland firefighters

https://library.fpinnovations.ca/fr/permalink/fpipub8833
Auteur
Alexander, Martin E.
Ackerman, Mark Y.
Baxter, Gregory J.
Date
2009
Genre du document
research report
Domaine
Fibre Supply
Auteur
Alexander, Martin E.
Ackerman, Mark Y.
Baxter, Gregory J.
Date
2009
Genre du document
research report
Description physique
27 p.
Secteur
Forest Operations
Domaine
Fibre Supply
Champ de recherche
Wildfire Operations
Sujet
Wildfires
Detection
Série
W 8833
Langue
English
Résumé
The Wildland Fire Operations Research Group of FPInnovations - Feric Division in collaboration with the University of Alberta initiated a project in late 2007 at the request of its stakeholders to examine and define the limits of wildland firefighter safety and survival zones. Part of this project involves examining past wildfire incidents in relation to hindsight simulations of the thermal environment associated with the area of refuge taken by firefighters in various burn-over and entrapment situations. Here we examine the case involving the survival of Smokejumper Foreman Wag Dodge on the 1949 Mann Gulch Fire. Based on a thorough review of all the available written documentation and photographic evidence coupled with existing fire behavior knowledge and predictive models, new estimates are presented for the area burned by Dodge's escape fire (0.02 acre or 0.08 hectare) and the height of the flame front that swept around his "island" of safety (10 ft or 3 m). The question of whether he was physically lifted off the ground during the ordeal is also touched on.
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Biology and management of bluestain fungi

https://library.fpinnovations.ca/fr/permalink/fpipub4615
Auteur
Uzunovic, Adnan
Date
March 2009
Édition
41414
Genre du document
Research report
Domaine
Sustainable Construction
Auteur
Uzunovic, Adnan
Collaborateur
Canada. Canadian Forest Service.
Date
March 2009
Édition
41414
Genre du document
Research report
Description physique
4 p.
Secteur
Wood Products
Domaine
Sustainable Construction
Champ de recherche
Advanced Wood Materials
Sujet
Stain fungal
Stain
Série
Canadian Forest Service No. 38
W-2664
Localisation
Vancouver, British Columbia
Langue
English
Résumé
The objectives of the project are to determine the major source of bluestain fungi and determine the mechanisms of their dispersion, and to determine the biology and weak points of pests that may be expoited to control them.
Stain - Fungal - Control
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La biomasse forestière 4 : produire de la matière première par la ligniculture

https://library.fpinnovations.ca/fr/permalink/fpipub8563
Auteur
Turbis, Chantal
Date
2009
Genre du document
Fiche technique
Domaine
Fibre Supply
Auteur
Turbis, Chantal
Date
2009
Genre du document
Fiche technique
Description physique
2 p.
Secteur
Forest Operations
Domaine
Fibre Supply
Champ de recherche
Forestry
Sujet
Ligniculture
Bioénergie
Biomasse
Essence croissance rapide
Saules
Peupliers hybrides
Série
OT 123
Langue
English
Résumé
This article is the fourth in a series presenting different aspects of aspects of research conducted at the Canadian Service (CFS) and FPInnovations and FPInnovations in the area of forest forest biomass.
Résumé
Cet article est le quatrième d’une série présentant différents aspects de la recherche effectuée au Service canadien des forêts (SCF) et chez FPInnovations dans le domaine de la biomasse forestière.
Documents
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La biomasse forestière 5 : les biocombustibles solides, générateurs de bioénergie

https://library.fpinnovations.ca/fr/permalink/fpipub8565
Auteur
Desjardins, Nancy
Date
2009
Genre du document
Fiche technique
Domaine
Fibre Supply
Auteur
Desjardins, Nancy
Date
2009
Genre du document
Fiche technique
Description physique
2 p.
Secteur
Forest Operations
Domaine
Fibre Supply
Champ de recherche
Forestry
Sujet
Bioenergy
Biomass
Biofuels
Densification
Bioénergie
Biomasse
Biocombustibles
Bois densifié
Chaufferie
Cogénération
Forintek
Série
OT 126
Langue
English
Résumé
Forest biomass can be used to produce biofuels in solid, liquid and gaseous form. This article focuses on solid fuels and the feeding of cogeneration plants and institutional boiler rooms. Liquid and gaseous fuels will be the subject of future articles in this series.
Résumé
La biomasse forestière permet de produire des biocombustibles sous forme solide, liquide et gazeuse. Cet article porte sur les combustibles solides et l’alimentation des centrales de cogénération et des chaufferies institutionnelles. Les combustibles liquides et gazeux feront l’objet des prochains articles de cette série.
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213 notices – page 1 of 22.