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Outputs (53)

Making the grade and maximising the opportunities. (2016)
Presentation / Conference Contribution
Ridley-Ellis, D. (2016, April). Making the grade and maximising the opportunities. Presented at Institute of Chartered Foresters 2016 National Conference “The Timber Supply Chain – Dynamics and Opportunities”

Institute of Chartered Foresters National Conference 2016 Invited presentation covering: A quick explanation of key properties of wood, relevant to construction The extent of variation in these properties, between and within species – and the... Read More about Making the grade and maximising the opportunities..

Timber grading potential of Douglas fir in the Republic of Ireland and the UK (2019)
Journal Article
Gil-Moreno, D., Ridley-Ellis, D., & Harte, A. (2019). Timber grading potential of Douglas fir in the Republic of Ireland and the UK. International Wood Products Journal, 10(2), 64-69. https://doi.org/10.1080/20426445.2019.1617984

Results of the recently approved machine control grading settings for Douglas fir in the Republic of Ireland and the UK have shown that the species can be graded to C18, and higher strength classes, and while there is a relatively high proportion of... Read More about Timber grading potential of Douglas fir in the Republic of Ireland and the UK.

Timber grading (2017)
Presentation / Conference Contribution
Ridley-Ellis, D. (2017, May). Timber grading. Presented at Tree Breeding and Forest Products - An update on current research

Bringing new species to the market place (2017)
Presentation / Conference Contribution
Ridley-Ellis, D. (2017, May). Bringing new species to the market place. Presented at EFIATLANTIC AND IEFC ANNUAL MEETING The Role of Alternative Tree Species in the Forests of Atlantic Europe

Timber grading update (2017)
Presentation / Conference Contribution
Ridley-Ellis, D. (2017, November). Timber grading update. Presented at SIRT update seminar

The latest news on timber grading standards and how they effect structural timber production in UK and IE

Assessing timber quality (2017)
Presentation / Conference Contribution
Ridley-Ellis, D. (2017, October). Assessing timber quality. Presented at Royal Forestry Society Future Technology Conference, Moulton College, Northants

The use of technology for assessing and monitoring timber quality in the forest and at harvesting

Equipping ourselves for future forests and timber. (2018)
Presentation / Conference Contribution
Ridley-Ellis, D. (2018, May). Equipping ourselves for future forests and timber. Presented at Institute of Chartered Foresters National Conference

Presentation to the Institute of Chartered Foresters National Conference, "Innovation for change - New drivers for tomorrow’s forestry" Edinburgh 2-3 May 2013 https://www.charteredforesters.org/

Home grown timber now and in the future. (2017)
Presentation / Conference Contribution
Ridley-Ellis, D. (2017, November). Home grown timber now and in the future. Presented at WTS British Timber Seminar

Presentation to the wood technology society "British Timber Seminar" at IOM3, November 2017

Assessing timber quality. (2017)
Presentation / Conference Contribution
Ridley-Ellis, D. (2017, October). Assessing timber quality. Presented at 1st National Forestry and Aboriculture Student Conference, Moulton College, Moulton, Northamptonshire

Presentation about technology for assessing timber quality, at the Royal Forestry Society Future Foresters Technology Day (1st National Forestry and Aboriculture Student Conference)

TG1/201804/25rev Derivation of MTG grading machine settings for Douglas fir (IE & GB, C classes) (2018)
Report
Ridley-Ellis, D., & Gil-Moreno, D. (2018). TG1/201804/25rev Derivation of MTG grading machine settings for Douglas fir (IE & GB, C classes). Ljubljana: WoodProps for Ireland project

Grading machines MTG 960 mtgBATCH 962 mtgBATCH 966 MTG 920 mtgBATCH 922 mtgBATCH 926 Douglas fir (Pseudotsuga menziesii) (PSMN) Permitted timber sizes Thickness: 33 mm to 84 mm Width: 68 mm to 248 mm C35/16 C27/16, C24/C16, C24/14... Read More about TG1/201804/25rev Derivation of MTG grading machine settings for Douglas fir (IE & GB, C classes).

Impulse excitation measurement of small changes in elastic moduli and damping using R (2018)
Journal Article
Ridley-Ellis, D., Libeau, M., & Mignerat, D. (2018). Impulse excitation measurement of small changes in elastic moduli and damping using R. International Wood Products Journal, 1-6. https://doi.org/10.1080/20426445.2018.1475928

Impulse excitation is commonly used to assess wood stiffness in both scientific and industrial settings. Modes of vibration are excited by a mechanical impulse and their resonant frequencies measured to calculate elastic moduli. It is also possible t... Read More about Impulse excitation measurement of small changes in elastic moduli and damping using R.

Strength grading of timber in the UK in 2018 (2018)
Presentation / Conference Contribution
Ridley-Ellis, D. (2018, June). Strength grading of timber in the UK in 2018. Paper presented at Timber 2018, London

This paper summarises the state-of-the-art of strength grading of UK-grown timber. It lists the following information along with the primary references: visual grading grades and strength class assignments; grading machines with approved settings for... Read More about Strength grading of timber in the UK in 2018.

The daily cycle of moisture content expansion and contraction in UK-grown Sitka spruce trees (2018)
Presentation / Conference Contribution
Adams, S., & Ridley-Ellis, D. (2018, June). The daily cycle of moisture content expansion and contraction in UK-grown Sitka spruce trees. Paper presented at Timber 2018

The diameter of five dominant Sitka spruce (Picea sitchensis) trees at Griffin Forest (near Aberfeldy, Scotland) were monitored at two minute intervals with dendrometers between April 2008 and October 2012. This experiment was designed to investigate... Read More about The daily cycle of moisture content expansion and contraction in UK-grown Sitka spruce trees.

Some thresholds for grading British grown spruce to optimised strength classes using longitudinal resonance (2018)
Presentation / Conference Contribution
Ridley-Ellis, D., Adams, S., & Lehneke, S. (2018). Some thresholds for grading British grown spruce to optimised strength classes using longitudinal resonance.

The main commercial species in the UK and Ireland is Sitka spruce (Picea sitchensis), which is graded in combination with a small amount of Norway spruce (P. abies). It is typically graded to the European strength class C16, but actually has superior... Read More about Some thresholds for grading British grown spruce to optimised strength classes using longitudinal resonance.

TG1/201804/13rev2 Derivation of Goldeneye 706 grading machine settings for Douglas fir (IE & GB, C classes)
Report
Ridley-Ellis, D., & Gil-Moreno, D. TG1/201804/13rev2 Derivation of Goldeneye 706 grading machine settings for Douglas fir (IE & GB, C classes). NUI Galway

In this report, settings for Douglas fir (Pseudotsuga menziesii (Mirb.) Franco), PSMN, are derived for the Republic of Ireland and the United Kingdom for the following strength class combinations: C40/C30/C16, C40/C27/C16, C40/C24/C16, C35/18, C35/1... Read More about TG1/201804/13rev2 Derivation of Goldeneye 706 grading machine settings for Douglas fir (IE & GB, C classes).

TG1 201804 14rev1 Derivation of Viscan Compact and Viscan portable with balance grading machine settings for Douglas fir (IE & GB, C classes)
Report
Ridley-Ellis, D., & Gil-Moreno, D. TG1 201804 14rev1 Derivation of Viscan Compact and Viscan portable with balance grading machine settings for Douglas fir (IE & GB, C classes). NUI Galway

In this report, settings for Douglas fir (Pseudotsuga menziesii (Mirb.) Franco), PSMN, are derived for the Republic of Ireland and the United Kingdom for the following strength class combinations: C40/C30/C16, C40/C27/C16, C40/C24/C16, C35/C18, C35/... Read More about TG1 201804 14rev1 Derivation of Viscan Compact and Viscan portable with balance grading machine settings for Douglas fir (IE & GB, C classes).

TG1 201804 15rev1 Derivation of Viscan Plus machine settings for Douglas fir (IE & GB, C classes)
Report
Ridley-Ellis, D., & Gil-Moreno, D. TG1 201804 15rev1 Derivation of Viscan Plus machine settings for Douglas fir (IE & GB, C classes). NUI Galway

In this report, settings for Douglas fir (Pseudotsuga menziesii (Mirb.) Franco), PSMN, are derived for the Republic of Ireland and the United Kingdom for the following strength class combinations: C40/C30/C16, C40/C27/C16, C40/C24/C16, C35/C18, C35/... Read More about TG1 201804 15rev1 Derivation of Viscan Plus machine settings for Douglas fir (IE & GB, C classes).

TG1 201804 17 Rev2 Derivation of Viscan and Viscan portable without balance grading machine settings for Douglas fir (IE & GB, C classes)
Report
Ridley-Ellis, D., & Gil-Moreno, D. TG1 201804 17 Rev2 Derivation of Viscan and Viscan portable without balance grading machine settings for Douglas fir (IE & GB, C classes). NUI Galway

In this report, settings for Douglas fir (Pseudotsuga menziesii (Mirb.) Franco), PSMN, are derived for the Republic of Ireland and the United Kingdom for the following strength class combinations: C30/C16, C27/C16, C24/C16, C24/C14, C22/C14, C20/C14... Read More about TG1 201804 17 Rev2 Derivation of Viscan and Viscan portable without balance grading machine settings for Douglas fir (IE & GB, C classes).

TG1 201804 16 Derivation of Goldeneye 702 grading machine settings for Douglas fir (IE & GB, C classes)
Report
Ridley-Ellis, D., & Gil-Moreno, D. TG1 201804 16 Derivation of Goldeneye 702 grading machine settings for Douglas fir (IE & GB, C classes). NUI Galway

In this report, settings for Douglas fir (Pseudotsuga menziesii (Mirb.) Franco), PSMN, are derived for the Republic of Ireland and the United Kingdom for the following strength class combinations: C35/C18, C35/C16, C30/C16, C27/C16, C24/C16, C24/C14... Read More about TG1 201804 16 Derivation of Goldeneye 702 grading machine settings for Douglas fir (IE & GB, C classes).