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Development of Tomographic Technology (Case Study: Trees from Karaj City) | ||
| تحقیقات علوم چوب و کاغذ ایران | ||
| Article 10, Volume 33, Issue 1 - Serial Number 62, April 2018, Pages 100-111 PDF (733.33 K) | ||
| Document Type: Research Paper | ||
| DOI: 10.22092/ijwpr.2017.115825.1441 | ||
| Authors | ||
| Mehran Roohnia* 1; Ahmad Jahanlatibari2; Behzad Behnam3; Jamshid Zarrinmehr4; Mostafa Kohantorabi5; Negin Manouchehri6; Ajang Tajdini7 | ||
| 1Professor, Department of Wood and Paper Science and Technology, College of Agriculture and Natural Resources, Karaj Branch, Islamic Azad University, Karaj-Iran | ||
| 2Professor, Department of Wood and Paper Science and Technology, College of Agriculture and Natural Resources, Karaj Branch, Islamic Azad University, Karaj-Iran | ||
| 3Department of Electrical Engineering, Faculty of Engineering, Karaj Branch, Islamic Azad University, Karaj-Iran. | ||
| 4Employee, Karaj Branch, Islamic Azad University, Karaj, Iran | ||
| 5Ph.D Student, Department of Wood and Paper Science Islamic Azad University, Science and Research Branch, Hesarak, Poonak, Tehran, Iran | ||
| 6Invited researcher, Karaj Branch, Islamic Azad University, Karaj, Iran | ||
| 7Associate Professor, Department of Wood and Paper Science and Technology, College of Agriculture and Natural Resources, Karaj Branch, Islamic Azad University, Karaj, Iran | ||
| Abstract | ||
| Reaching to the technology of acoustical Tomography and imaging, this project was ordered for facilitating the work for green space researchers and managers in urban standing trees. Comparing the sensors and micro-second timers with those of a certified European device in radial to tangential and longitudinal directions showed a good agreement for the Iranian made device. So, a new horizon was opened for the researchers of this approach supported by the local scientific knowledge and technology. Holding this technology, the selected trees concerning the collar defect symptoms were firstly inspected visually, then the visual accuracy was monitored by sonic tomography. Some trees were extremely defected internally, while the visual inspection showed their intactness (9 from 23). Meanwhile some trees holding visually defect signs were proved to be intact after carrying the tomography images (up to 10 from 53). It is concluded that the visual tree defect inspection is not satisfactory for saving or omitting the individual and these kinds of decision makings must be supported by the methods showing the hidden discontinuities. | ||
| Keywords | ||
| Defect; Tomography; Tree; Sound Velocity; Collar; wood | ||
| References | ||
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-Ahmad, NI. Almuin, N. Fakhurazi, M. 2012. Ultrasonic Characterization of Standing Tree. 18th World Conference on Nondestructive Testing, 16-20 April 2012, Durban, South Africa.2-8. -Arcienegas, A. Brancheriau, L. Lasaygues, P. 2015. Tomography in standing trees: revisiting the determination of acoustic wave velocity, Annals of Forest Science 72(6): 685-691. -Booker, RF. Ridoutt, B. McConchie, D. Whealleans K and Ball R. 2000. Evaluation of Tools to Measure the Sound Velocity and Stiffness of Green Radiata Pine Logs, Proceedings of the 12th International Symposium on Nondestructive Testing of Wood University of Western Hungary, Sopron, 13-15 September 2000, ISBN 963 7180 88 5, Publisher: University of Western Hungary, H 9400 Sopron -Bustillo, J. Achidjian, H. Arciniegas, A. Blanc, L. 2017. Simultaneous determination of wave velocity and thickness on overlapped signals using Forward Backward algorithm, NDT & E International, 86: 100-105 -Carter, P. Chauchan, S. Walker, J. 2006. Sorting logs and lumber for stiffness using director HM200, Wood and Fiber Sci.38(1):49-54. -Dashevskii, A. Tailakov, D. 2009. Nondestructive Diagnostics of Living Trees Using Low Frequency Electric Tomography. Journal of Applied and Industrial Mathematics. 3(2):173–182. -Divos, F. Szalai, L. 2002. Tree evaluation by acoustic tomography. In: Proceedings of the 13th International symposium on nondestructive testing of wood; 2002 August 19-21; Berkeley, CA. Madison, WI: Forest Products Society: 251-256. -Dolwin, J. Lonsdale, D. Barnett, J. 1999. Detection of Decay in Trees. Arboriculture Journal. 23: 139-149 -Espinosa, L. Arciniegas, A. Cortes, Y. Prieto, F. Brancheriau, L. 2017. Automatic segmentation of acoustic tomography images for the measurement of wood decay, Wood Science and Technology, 51(1): 69-84. -Grabianowski, M. Manley, B. Walker, J. 2006. Acoustic measurements on standing trees, logs and green lumber. Wood Sci. & Tech.40(3):205-216. -Huang, CL. Floyd, SL. 2013. Methods for determining velocity of a stress wave within a material, European Patent Specification Pub. 4:84-91. -Kazeminajafi S. 2016. Nondestructive evaluation of standing trees. Tarbiat Modares University Press. 436p. -Laurence, R. Costello and Stephen L. Quarles. 1999. Detection of wood decay in blue gum and elm: an evaluation of the resistograph and the portable drill.Journal of Arboriculture. 25(6):311-318 -Liu, T. Lizzi, FL. Silverman, RH. Kutcher, GJ. 2004. Ultrasonic tissue characterization using 2-D spectrum analysis and its application in ocular tumor diagnosis. Med Phys. 31(5):1032–1039 -Roohnia, M Tajdini, A. 2014. Identification of the severity and position of a single defect in a wooden beam, BioResources, 9(2): 3428-3438 -Roohnia, M. Brancheriau, L. 2015. Orientation and position effects of a local heterogeneity on flexural vibration frequencies in wooden beams. Cerne. 21(2): 339-344. -Roohnia, M. Brémaud, I. Guibal, D. Manouchehri, N. 2006. NDT_Lab; Software to evaluate the mechanical properties of wood. p. 213-218, International conferenre on integrated approach to wood structure, behaviour and application, joint meeting of ESWM and COST Action E35, Forence, Italy. -Roohnia, M., 2007: NDT-LAB, System to evaluate the mechanical properties of wood. IR-Patent No. 4032/22-08-1386. Iranian offi cial Journal. Retrieved 14-04-2017: http://www.gazette.ir/Detail.asp?NewsID=914760224197351&paperID=975266637116773 -Roohnia, M. Alavi-Tabar, S. E.; Hossein, M. A. Brancheriau, L. Tajdini, A. 2011. Dynamic modulus of elasticity of drilled wooden beams. Nondestructive Testing and Evaluation, 26 (2): 141-153. -Roohnia, M. Yavari, A. Tajdini, A. 2010: Elastic Parameters of Poplar Wood with End-Cracks. Annals of Forest Science, 67 (4): 1-6. -Ross, J. 2007. Diameter Effect on Stress-Wave Evaluation of Modulus of Elasticity of Logs. Wood and Fiber Science. 36(3):368-377. -Ross, J. Zerbe, Z. Xiping, W. Green, D. Pellerin, R. 1997. Stress wave nondestructive evaluation of Douglas fir peeler cores. Forest Prod. J. 55(3):90-94. -Rust, S. 2000. A new tomographic device for the non-destructive testing of standing trees. Proceedings of the 12th International Symposium on Nondestructive Testing of Wood. University of Western Hungary, Sopron, 1:233–238. -Wang, X. Allison, B. Wang, L. Ross, R. 2007. Acoustic Tomography for Decay Detection in Red Oak Trees, Research Paper, FPL-RP-642. Madison, WI: U.S. Department of Agriculture, Forest Service, Forest Products Laboratory. 7 p. | ||
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