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4410 notices – page 1 de 441.

Auteur
Orbay, L.
Date
January 2002
Genre du document
Research report
Domaine
Wood Manufacturing & Digitalization
Auteur
Orbay, L.
Date
January 2002
Genre du document
Research report
Description physique
47 p.
Secteur
Wood Products
Domaine
Wood Manufacturing & Digitalization
Champ de recherche
Digitalization
Sujet
Scanning electron microscopy
Scanners
Série
1983
W-1826
Localisation
Vancouver, British Columbia
Langue
English
Résumé
Thirty full-length sample trees from the B.C. Interior were selected for a study to determine whether external log characteristics can predict internal log quality. The sample trees were also used to create 3-dimensional log images for sawmill simulation purposes. "LogSaw", a simulation tool with internal log defect detection capabilities, was used to explore the extent to which internal and external log quality information can improve log breakdown optimization. A model of a hypothetical sawmill producing lumber for the standard North American dimension market was created to study how lumber value recovery depends on different sawing optimization scenarios. Three sawing optimization scenarios using different levels of knowledge of internal log defects were compared to currently used sawing optimization technique:
Ideal sawing optimization - all defects within log interior are known.
Sawing optimization using only the knowledge of surface knots.
Sawing optimization using log rotation instructions based on zones of least external knot density. Simulation results have shown that it is worthwhile to “look into the log”. When compared with the current optimization technique, the sawing optimization, including the full knowledge of log interior, has increased the value recovery by 6.2%. When only the surface knots were projected into the log interior and included in the optimization, the value recovery had increased by 4.3%. Even this 4.3% increase is still a big improvement because this sawing optimization could be implemented using currently available scanning technologies and optimization software enhanced to include log surface knots. The scenario of using log rotation instructions based on predicted zones of least internal knot density did not show value recovery improvement. Including surface knots in the log breakdown optimization has considerably increased sawmill revenue; the hypothetical sawmill considered in this study, processing 400,000 m3 of log per year, has increased its revenue by $2.2 million.
Scanners, Electronic
Defects - Detection
Documents
Moins de détails

A 3 in 1 trail system for operating on soft soils

https://library.fpinnovations.ca/fr/permalink/fpipub52894
Auteur
Thiel, Matthew
Date
February 2020
Genre du document
research report
Domaine
Fibre Supply
Auteur
Thiel, Matthew
Date
February 2020
Genre du document
research report
Description physique
1 p.
Secteur
Forest Operations
Domaine
Fibre Supply
Champ de recherche
Forestry
Sujet
Costs
Forwarders
Harvesting
Skidders
Soil
Soft soil
Série
InfoNote; 2020 n.1
Langue
English
Résumé
Harvest operations on soft soils can be particularly challenging in order to respect site and soil disturbance guidelines as well as operational requirements. To address the challenges of operating on soft soils, FPInnovations has worked on solutions designed to reduce disturbance on weak soils while minimizing implementation and investment costs by using machines already being used in the operation.
Documents
Moins de détails

The 4.3-m portable beam bridge

https://library.fpinnovations.ca/fr/permalink/fpipub43734
Auteur
Hamilton, Peter
Date
December 1990
Genre du document
Research report
Domaine
Fibre Supply
Auteur
Hamilton, Peter
Date
December 1990
Genre du document
Research report
Description physique
2 p.
Secteur
Forest Operations
Domaine
Fibre Supply
Champ de recherche
Forestry
Sujet
Roads
Transport
Série
FO Field Note ; Roads & Bridges 23
Langue
English
Documents
Moins de détails

5 ply, preservative treated plywood sample

https://library.fpinnovations.ca/fr/permalink/fpipub1563
Auteur
Morgan, E.K.
Date
October 1985
Édition
38069
Genre du document
Research report
Domaine
Wood Manufacturing & Digitalization
Auteur
Morgan, E.K.
Collaborateur
Canada Mortgage and Housing Corporation (CMHC)
Date
October 1985
Édition
38069
Genre du document
Research report
Description physique
3 p.
Secteur
Wood Products
Domaine
Wood Manufacturing & Digitalization
Champ de recherche
Advanced Wood Manufacturing
Sujet
Testing
Preservation
Plywood
Série
3-45-68-569
E-197
Localisation
Ottawa, Ontario
Langue
English
Résumé
Plywood - Preservation - Testing
Plywood - Testing
Documents
Moins de détails

The 6.1-m portable beam bridge

https://library.fpinnovations.ca/fr/permalink/fpipub43737
Auteur
Hamilton, Peter
Date
December 1990
Genre du document
Research report
Domaine
Fibre Supply
Auteur
Hamilton, Peter
Date
December 1990
Genre du document
Research report
Description physique
2 p.
Secteur
Forest Operations
Domaine
Fibre Supply
Champ de recherche
Forestry
Sujet
Roads
Transport
Série
FO Field Note ; Roads & Bridges 24
Langue
English
Documents
Moins de détails

8-axle truck/trailer configuration (tractor/jeep with self-steering quadaxle trailer)

https://library.fpinnovations.ca/fr/permalink/fpipub43643
Auteur
Phillips, Eric
Date
1987
Genre du document
Research report
Domaine
Fibre Supply
Auteur
Phillips, Eric
Date
1987
Genre du document
Research report
Description physique
2 p.
Secteur
Forest Operations
Domaine
Fibre Supply
Champ de recherche
Forestry
Sujet
Trucks
Langue
English
Documents
Moins de détails

20-year evaluation of millwork preservatives

https://library.fpinnovations.ca/fr/permalink/fpipub4412
Auteur
Ingram, Janet K.
Morris, Paul I.
Date
January 1999
Édition
41191
Genre du document
Research report
Domaine
Sustainable Construction
Auteur
Ingram, Janet K.
Morris, Paul I.
Date
January 1999
Édition
41191
Genre du document
Research report
Description physique
5 p.
Secteur
Wood Products
Domaine
Sustainable Construction
Champ de recherche
Advanced Wood Materials
Sujet
Preservatives tests
Preservatives
Preservation
Série
W-1548
Localisation
Vancouver, British Columbia
Langue
English
Résumé
A field test of six millwork preservatives has been ongoing for twenty years, using a simulated window corner, or "Y-joint", as the test unit. Three preservatives provided excellent protection to white pine and white spruce: 5% pentachlorophenol in varsol, phenyl mercury oleate in varsol, and 0.75% oxine copper in varsol.
Preservatives - Tests
Preservation - Durability
Documents
Moins de détails

24 month evaluation of novel UV protection systems. Second Year Report 2004/05

https://library.fpinnovations.ca/fr/permalink/fpipub4530
Auteur
Morris, Paul I.
McFarling, S.M.
Date
March 2005
Édition
41317
Genre du document
Research report
Domaine
Sustainable Construction
Auteur
Morris, Paul I.
McFarling, S.M.
Collaborateur
Canada. Canadian Forest Service.
Date
March 2005
Édition
41317
Genre du document
Research report
Description physique
19 p.
Secteur
Wood Products
Domaine
Sustainable Construction
Champ de recherche
Advanced Wood Materials
Sujet
Preservatives tests
Preservatives
Série
Canadian Forest Service No. 35;3226
W-2134
Localisation
Vancouver, British Columbia
Langue
English
Résumé
A transparent coating with long-term performance could help wood maintain its share of residential markets against material substitution and potentially expand markets in recreational property and non-residential buildings. While transparent coatings can be made reasonably resistant to UV some UV likely penetrates to the wood and by necessity clear coatings are transparent to visible light. Visible light can also cause damage over the long term thus the underlying wood needs additional protection. Four novel UV protection systems were tested as pre-treatments on uncoated wood and under three coatings, a water-based film forming coating, a water-based acrylic varnish and a solvent based water repellent. Samples were exposed to natural weathering facing South at 45° at a test site in Gulfport, Mississippi, in collaboration with the USDA Forest Products Laboratory. The test material was inspected every six months for discolouration, mold and stain, coating water repellency, flaking, erosion and cracking and substrate condition. After 24 months exposure, coatings over the combination of UV absorber and lignin stabilizer identified by Stephen Ayer were performing better than the same coatings applied over the combination recommended by Ciba and coatings over both pre-treatments were performing substantially better than controls with no pre-treatment. Projection of fitted curves beyond the data appears to indicate that pretreatment may double the life expectancy of the coating. There was no consistent effect of the synergists on either combination at this time.
Preservatives - Tests
Finishes - Exterior - Tests
Documents
Moins de détails

25-year evaluation of millwork preservatives

https://library.fpinnovations.ca/fr/permalink/fpipub4504
Auteur
Ingram, Janet K.
Morris, Paul I.
Date
December 2003
Édition
41291
Genre du document
Research report
Domaine
Sustainable Construction
Auteur
Ingram, Janet K.
Morris, Paul I.
Date
December 2003
Édition
41291
Genre du document
Research report
Description physique
5 p.
Secteur
Wood Products
Domaine
Sustainable Construction
Champ de recherche
Advanced Wood Materials
Sujet
Preservatives tests
Preservatives
Preservation
Série
W-2002
Localisation
Vancouver, British Columbia
Langue
English
Résumé
A field test of six millwork preservatives has been ongoing for 25 years, using a "Y-joint" as the test unit. Three preservatives provided excellent protection to white pine and white spruce: 5% pentachlorophenol in varsol, phenyl mercury oleate in varsol, and 0.75% oxine copper in varsol.
Preservatives - Tests
Preservation - Durability
Documents
Moins de détails

1984 Field testing of the experimental prototype of the dual roll splitter

https://library.fpinnovations.ca/fr/permalink/fpipub43246
Auteur
Du Sault, A.
Date
1985
Genre du document
Research report
Domaine
Fibre Supply
Auteur
Du Sault, A.
Date
1985
Genre du document
Research report
Description physique
50 p.
Secteur
Forest Operations
Domaine
Fibre Supply
Champ de recherche
Forestry
Sujet
Processing
Residues
Water
Série
FO Special Report
Langue
English
Résumé
THIS REPORT DESCRIBES THE RESULTS OF A JOINT EFFORT BETWEEN FERIC AND THE TENNESSEE VALLEY AUTHORITY (DIVISION OF LAND AND FOREST RESOURCES) AND WAS PART OF THE ENFOR PROGRAM OF THE CANADIAN FORESTRY SERVICE. IT DESCRIBES THE PERFORMANCE OF A PROTOTYPE ROLL SPLITTER TO DEWATER THE STEMS OF THREE TREE SPECIES AND THE ENHANCEMENT BY AIR DRYING OF THE DEWATERING OF THE CRUSHED ITEMS. MECHANICAL COMMINUTION ENERGY DATA ARE PRESENTED.
Forest residues
LOGGING RESIDUES
PROCESSING
COMMINUTION
CRUSHING
Machine evaluation
Documents
Moins de détails

4410 notices – page 1 of 441.