Volume 39 (2024-2025)
Volume 38 (2023-2024)
Volume 37 (2022-2023)
Volume 36 (2021-2022)
Volume 35 (2020-2021)
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Volume 32 (2017-2018)
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Volume 27 (2012-2013)
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Volume 21 (2006-2007)
Volume 20 (2005-2006)
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Volume 16 (2002-2003)
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Volume 14 (2001-2002)
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Volume 12 (2000-2001)
Volume 11 (2000-2001)
Volume 10 (2000-2001)
Volume 9 (2000)
Volume 8 (1999)
Volume 7 (1999)
Volume 6 (1998)
Volume 5 (1998)
Volume 4 (1997)
Volume 3 (1997)
Volume 2 (1996)
Volume 1 (1995)
Investigation on biomechanical properties of pinus nigra Using stress wave technique and resistography

Sana Lotfi; Mohammadali Saadatnia; Mohammad Hadi Moradian; ladan pour sartip

Volume 36, Issue 2 , July 2021, , Pages 144-156

https://doi.org/10.22092/ijwpr.2021.352921.1652

Abstract
  Ensuring the quality and stability of trees as the most important components of the plant community has attracted the attention of foresters to identify and measure defects and ensure safety coefficients. Therefore, in the present study, the use of acoustic tomography to calculate the extent of decay, ...  Read More

Possibility of using non-destructive spectrophotometery to detect the poplar tension wood and spruce compression wood in freshly cut and dried timbers

Zinab Frozan; Asghar Taremian; Janin Gerar

Volume 27, WINTER 4 , December 2012, , Pages 568-753

https://doi.org/10.22092/ijwpr.2012.109599

Abstract
  In this study, the potential use of spectrophotometery and CIELAB technique was evaluated to detect reaction woods, including poplar tension wood and spruce compression wood. Thus, two trees of spruce ( Picea abies) and poplar (Populous nigra) containing reaction wood were cut from  a forest belonging ...  Read More

Investigation the acoustic behavior of poplar and spruce species reaction wood using ultrasonic technique

Mohammad ali Sadat nia; Ali akbar Enayati; Loeic Brancheriau; Kambiz Pourtahmasi; Farhang Honarparvar

Volume 27, Issue 2 , June 2012, , Pages 306-318

https://doi.org/10.22092/ijwpr.2012.117069

Abstract
  The acoustic behavior of reaction and normal woods, phase velocity, group velocity and attenuation coefficients in the main directions for two wood species (Populus deltoids & Picea abies), were measured and compared. The results did not show any significant difference between phase velocities of ...  Read More