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L'eau et la durabilité : fiche technique sur la performance de la construction à ossature de bois

https://library.fpinnovations.ca/en/permalink/fpipub42416
Contributor
Forintek Canada Corp.
Canada Mortgage and Housing Corporation (CMHC)
Société centrale d'hypothèques et de logement (SCHL)
Date
April 2000
Material Type
Pamphlet
Field
Sustainable Construction
Contributor
Forintek Canada Corp.
Canada Mortgage and Housing Corporation (CMHC)
Société centrale d'hypothèques et de logement (SCHL)
Date
April 2000
Material Type
Pamphlet
Physical Description
4 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Advanced Wood Materials
Subject
Moisture content
Wood decay
Series Number
Fact Sheet on Wood in Construction = Fiche technique sur le bois dans la construction
Location
Québec, Québec
Language
French
Abstract
Moisture - Control
Moisture - Prevention
Buildings - Houses - Moisture content
Decay - Prevention
Building construction - Design
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E4561.pdf

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Temperature and moisture insensitive prediction of biomass calorific value from NIR spectra using external parameter orthogonalization

https://library.fpinnovations.ca/en/permalink/fpipub52660
Author
Hans, Guillaume
Allison, Bruce J.
Date
September 2018
Material Type
Research report
Field
Bioproducts
PDF
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for such an application. However, the NIR spectra are also influenced by biomass temperature (T°) and moisture content
Author
Hans, Guillaume
Allison, Bruce J.
Contributor
Natural Resources Canada. Canadian Forest Service
Date
September 2018
Material Type
Research report
Physical Description
27 p.
Sector
Wood Products
Field
Bioproducts
Research Area
Biomass Conversion
Subject
Biomass
Optimization
Spectroscopy
Temperature
Moisture content
Series Number
Transformative Technology ; TT 2018
Language
English
Abstract
In the pulp and paper and biofuel industries, real-time online characterization of biomass gross calorific value (GCV) is of critical importance to determine its quality and price and for process optimization. Near-infrared (NIR) spectroscopy is a relatively low-cost technology that could potentially be used for such an application. However, the NIR spectra are also influenced by biomass temperature (T°) and moisture content (MC). In this paper, external parameter orthogonalization (EPO) is employed to remove simultaneously the influence of T° and MC on the spectra before predicting GCV. EPO is of particular interest when one desires to transfer information from one modeling experiment to another, such as when developing a calibration model for a new property from the same material, or when it would be more efficient to divide the experimental effort. EPO was found to be an effective method for desensitizing a PLS calibration model to the influence of T° and MC, enabling robust and accurate prediction biomass GCV. Partial least squares (PLS) regression models developed with EPO always provided equal or better performance than models developed without EPO. The paper shows that experimental efforts and costs can be reduced by approximately one half while maintaining prediction accuracy and model robustness.
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19605.pdf

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