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Partial Modal Analysis for Health Assessment of Living Trees

Joakim Axmon, Dr. Maria Hansson and Prof. Leif Sörnmo P.O. Box 118, SE-221 00 Lund, Sweden.
Email: jax@tde.lth.se.








  1. Axmon J 2000 On Detection of Decay in Growing Norway Spruce via Natural Frequencies. Licentiate in Engineering Thesis, Lund University, Sweden. ISSN: 1402-8662.
  2. Axmon J and Hansson M 1999 Proc. IASTED Signal and Image Processing 1999 188-192. Estimation of circumferential-mode parameters of living trees.
  3. Axmon J and Hansson M 2000 Proc. IEEE Sensor Array and Multichannel Signal Processing Workshop 2000 212-216. Transients in circular symmetry: Estimation of transverse wave propagation velocity.
  4. Graff KF 1975 Wave Motion in Elastic Solids. Oxford: Clarendon Press, Dover ed.
  5. Habermehl A 1982 Arboricultural J. 6 121-130. A new non-destructive method for determining internal wood condition and decay in living trees. II: Results and further developments.
  6. Johnson DH and Dudgeon DE 1993 Array signal processing: Concepts and techniques. Englewood Cliffs: Prentice Hall.
  7. Kumaresan R and Tufts DW 1982 IEEE Trans. Acoust., Speech and Signal Proc. 30 833-840. Estimating the Parameters of Exponentially Damped Sinusoids and Pole-Zero Modeling in Noise.
  8. Lawday G and Hodges PA 2000 Forestry 73 447-456. The Analytical Use of Stress Waves for the Detection of Decay in Standing Trees.
  9. Leissa AW and So J 1995 J. Acoust. Soc. Amer. 98 2136-2141. Accurate Vibration Frequencies of Circular Cylinders from Three-Dimensional Analysis.
  10. Mattheck CG and Bethge KA 1993 J. Arboriculture 19 374-378. Detection of Decay in Trees with the Metriguard Stress Wave Timer.
  11. Ouis D 1999 Wood Sci. and Techn. 33 151-184. Vibrational and Acoustical Experiments on Logs of Spruce.
  12. Rawlings JO 1988 Applied Regression Analysis: A Research Tool. Pacific Grove: Wadsworth & Brooks.
  13. Schniewind AP (ed) 1989 Concise Encyclopedia of Wood & Wood-Based Materials. Oxford: Pergamon Press, First ed.
  14. Singal RK, Williams K and Verma SP 1987 J. Sound and Vibr. 115 13-23. Vibration behaviour of stators of electrical machines. Part II: Experimental study.
  15. Skatter S 1996 Wood and Fiber Sci. 28 278-285. TV Holography as a Possible Tool for Measuring Transverse Vibration of Logs: A Pilot Study.
  16. Skatter S and Dyrseth AA 1997 Wood and Fiber Sci. 29 228-238. Vibration Modes of Logs Measured by TV Holography.
  17. Verma SP, Singal RK and Williams K 1987 J. Sound and Vibr. 115 1-12. Vibration behaviour of stators of electrical machines. Part I: Theoretical study.
  18. Vollbrecht G and Agestam E 1995 Forest & Landsc. Res. 1 241-254. Identifying Butt Rotted Norway Spruce Trees from External Signs.
  19. Wagener WW and Davidson RW 1954 The Botanical Review XX 61-134. Heart Rots in Living Trees.
  20. Wilcox WW 1978 Wood and Fiber 9 252-257. Review of Literature on the Effects of Early Stages of Decay on Wood Strength.

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