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Estimating moisture absorption kinetics of beans during soaking using mathematical models CIGR Journal
Shafaei, Seyed Mojtaba; Masoumi, Amin Allah.
In this paper, fourteen standard models were used to estimate the moisture ratio of three varieties of bean in Iran (Talash, Sadri and Mahali Khomein).  The experiments were carried out using distilled water at three temperatures (5°C, 25°C and 45°C) and three replicates.  The standard models of water absorption were fitted to the experimental data.  To evaluate the models, three parameters: coefficient of determination (R2), chi-square (2) and root mean square error (RMSE) were used.  The appropriate model was chosen based on maximum value of coefficient of determination and minimum value of chi-square and root mean square error.  The effective moisture diffusivity coefficient of three verities in each temperature was estimated by Fick’s equation.  The...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Water uptake; Hydration; Moisture ratio; Moisture diffusivity; Weibull model.
Ano: 2014 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2796
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Design, construction and evaluation of an automatic apple grading system CIGR Journal
Masoumi, Amin Allah; Kalhor, Mohammad; Shafaei, Seyed Mojtaba.
A system was designed and fabricated to grade apple automatically based on their size using machine vision. The system included several unites to single out, orient and grade apple. A cylinder container with circular hole in bottom which was equipped with agitator was built to single out the apple. This mechanism delivered apple to orientation unit, one by one. Two wooden rails with a specific form which was located on the ramp via adequate slope was used to orient the apple during rolling. After the orientation, apple were placed below the camera to take its photo. The photos were transferred to computer for image processing to determine the apple grade based on their size. A belt conveyor carries the apples and set them in appropriate place regard to...
Tipo: Info:eu-repo/semantics/article
Ano: 2015 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3045
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