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چکیده
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This study was conducted to evaluate different physical and mechanical properties in almond nuts of ten cultivars including dimensions, arithmetic and geometric mean diameters, sphericity, surface area, almond mass, bulk and true densities, porosity, angle of repose, projected area, coefficient of static friction and rupture force. Multi-linear models for the ten almond cultivars were developed and presented to predict the nut surface area. According to the results 'amaei' cultivar had highest length of nut and thickness and 'Sahand' cultivar had highest width than the other cultivars. Nut of 'Mamaei' cultivar was significantly heavier than the rest of cultivars. Similarly, it was found highest the arithmetic and geometric mean diameters, surface area, and projected area for 'Mamaei' nuts. Highest value of sphericity, true density, bulk density, porosity, angle of repose, and rupture force was found for the nuts of 'V-9-17', 'Shahrood17', 'Shahrood17', 'V-3-16', and 'Sahand' cultivars, respectively. On the plywood, glass, and galvanized iron sheet surfaces, the coefficient of static friction of the nuts of 'Shahrood17', 'V-13', and 'V-3-16' cultivars was significantly greater than that of the other cultivars.
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