All Outputs (190)

Lesser-used UK-grown timber (2019)
Book Chapter
Ridley-Ellis, D. (2019). Lesser-used UK-grown timber. In TRADA Timber Industry Yearbook 2019 (200-205)

Daniel Ridley-Ellis looks at the grading properties of different species in comparison with the highly commercial Sitka spruce.

Grading of British Timber (2018)
Journal Article
Ridley-Ellis, D. (2018). Grading of British Timber. The Full Circle: The Journal of the Association of Scottish Hardwood Sawmillers, 34-36

A summary of grading of home grown timber for the magazine of the Association of Scottish Hardwood Sawmillers (ASHS).

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.

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.

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.

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/

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).

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

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

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)

Timber properties of minor conifer species in Britain and future marketing opportunities (2017)
Presentation / Conference Contribution
Ridley-Ellis, D. (2017, May). Timber properties of minor conifer species in Britain and future marketing opportunities. Presented at The National Forestry Conference for Ireland "an appraisal of the silvicultural and marketing potential of coniferous alternatives to Sitka spruce"

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

TG1/201703/21rev Derivation of Goldeneye 702 grading machine settings for British Spruce (2017)
Report
Ridley-Ellis, D. (2017). TG1/201703/21rev Derivation of Goldeneye 702 grading machine settings for British Spruce. CEN TC124 WG2 TG1: MiCROTEC

Goldeneye 702 MiCROTEC GmbH Julius Durst Str. 98 IT-39042 Brixen (BZ) www.microtec.eu United Kingdom of Great Britain and Northern Ireland + Republic of Ireland Sitka spruce [Picea sitchensis] Norway spruce [Picea abies] (WPCS) 34... Read More about TG1/201703/21rev Derivation of Goldeneye 702 grading machine settings for British Spruce.

TG1/201703/27rev Derivation of MTG 960 grading machine settings for British Spruce (2017)
Report
Ridley-Ellis, D. (2017). TG1/201703/27rev Derivation of MTG 960 grading machine settings for British Spruce. CEN TC124 WG2 TG1: Dan Ridley-Ellis

MTG 960 Brookhuis Micro Electronics bv Institutenweg 15 7521 PH Enschede The Netherlands United Kingdom of Great Britain and Northern Ireland + Republic of Ireland Sitka spruce (Picea sitchensis) Norway spruce (Picea abies) (WPCS)... Read More about TG1/201703/27rev Derivation of MTG 960 grading machine settings for British Spruce.

TG1/201703/26rev Derivation of MTG 960 grading machine settings for UK larch (2017)
Report
Ridley-Ellis, D. (2017). TG1/201703/26rev Derivation of MTG 960 grading machine settings for UK larch. CEN TC124 WG2 TG1: Dan Ridley-Ellis

MTG 960 Brookhuis Micro Electronics bv Institutenweg 15 7521 PH Enschede The Netherlands United Kingdom of Great Britain and Northern Ireland European larch Larix decidua Hybrid larch Larix x eurolepsis Japanese larch Larix kaempferi... Read More about TG1/201703/26rev Derivation of MTG 960 grading machine settings for UK larch.

TG1/201703/25rev Derivation of Viscan and Viscan portable without balance grading machine settings for British Spruce (2017)
Report
Ridley-Ellis, D. (2017). TG1/201703/25rev Derivation of Viscan and Viscan portable without balance grading machine settings for British Spruce. CEN TC124 WG2 TG1: MiCROTEC

Viscan Viscan portable WITHOUT balance MiCROTEC GmbH Julius Durst Str. 98 IT-39042 Brixen (BZ) www.microtec.eu United Kingdom of Great Britain and Northern Ireland + Republic of Ireland Sitka spruce [Picea sitchensis] Norway spruce [Pic... Read More about TG1/201703/25rev Derivation of Viscan and Viscan portable without balance grading machine settings for British Spruce.

TG1/201703/22rev Derivation of Goldeneye 706 grading machine settings for British Spruce (2017)
Report
Ridley-Ellis, D. (2017). TG1/201703/22rev Derivation of Goldeneye 706 grading machine settings for British Spruce. CEN TC124 WG2 TG1: MiCROTEC

Goldeneye 706 MiCROTEC GmbH Julius Durst Str. 98 IT-39042 Brixen (BZ) www.microtec.eu United Kingdom of Great Britain and Northern Ireland + Republic of Ireland Sitka spruce [Picea sitchensis] Norway spruce [Picea abies] (WPCS) 34... Read More about TG1/201703/22rev Derivation of Goldeneye 706 grading machine settings for British Spruce.