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24 results

Some thresholds for grading British grown spruce to optimised strength classes using longitudinal resonance

Conference Proceeding
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 typ...

Strength grading of timber in the UK in 2018

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

Impulse excitation measurement of small changes in elastic moduli and damping using R

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 reson...

TG1/201804/25rev Derivation of MTG grading machine settings for Douglas fir (IE & GB, C classes)

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

Home grown timber now and in the future.

Presentation / Conference
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

Presentation / Conference
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

Timber properties of minor conifer species in Britain and future marketing opportunities

Presentation / Conference
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", Johnstown House Hotel, Enfield, Co. Meath

Bringing new species to the market place

Presentation / Conference
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, Edinburgh

Timber grading

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

TG1/201703/21rev Derivation of Goldeneye 702 grading machine settings for British Spruce

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 spruc...