Abstract
The propagation velocities of an ultrasonic dilatational wave in different segments of a cereal stalk were measured and the averaged orientations of crystallites in the same segments were determined applying X-ray diffraction method. Using the principle of maximum entropy the analytical form of the probability density function of the crystallite orientation in a segment was found for the different values of the propagation velocity observed. Subsequently the fractions of crystallites with orientation angles lying in a given finite angle interval were calculated for the arbitrarily chosen propagation velocities.References
[1] H. GAWDA, Attempt at applying the ultrasonic method for determining the Young modulus of cereal stalk, Zeszyty Problemowe Postepów Nauk Rolniczych, 203, 145-152 (1978).
[2] H. GAWDA, Ultrasonic investigations of the mechanical properties of the stalks of a wheat, The Second Congress of the Federation of Acoustical Societes of Europe, Warsaw 18-22 September, 1978, 287-290.
[3] H. GAWDA, The effect of the texture of cell walls on the value of the Young modulus of plant material, I1 International Conference on Physical Properties of Agricultural Materials, Godollo, Hungary, 26-28 August 1980, 1-21.
[4] H. GAWDA, J. S. HAMAN, An ultrasonic methods of determining Young's modulus in cereal plants, Transactions of ASAE 26, 1, 250-254 (1983).
[2] H. GAWDA, Ultrasonic investigations of the mechanical properties of the stalks of a wheat, The Second Congress of the Federation of Acoustical Societes of Europe, Warsaw 18-22 September, 1978, 287-290.
[3] H. GAWDA, The effect of the texture of cell walls on the value of the Young modulus of plant material, I1 International Conference on Physical Properties of Agricultural Materials, Godollo, Hungary, 26-28 August 1980, 1-21.
[4] H. GAWDA, J. S. HAMAN, An ultrasonic methods of determining Young's modulus in cereal plants, Transactions of ASAE 26, 1, 250-254 (1983).
