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Autor M.H. KESSEL |
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M.H. KESSEL, Autor ; PLINKE, B., Autor ; R. AGUSTIN, Autor ; M. HUSE, Autor | 1998A non-destructive method of grading construction timber beams with cross sections between 10x12cm² and 12x24cm² and lengths from 2.3m to 7.5m was developed. By means of beam geometry, the propagation time of an ultrasound impulse along the beam,[...]