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Journal of Agricultural Science and Technology، جلد ۱۴، شماره ۱، صفحات ۱۶۱-۱۷۲
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عنوان انگلیسی Effect of Moisture Content on Physical Properties of Barley Seeds
چکیده انگلیسی مقاله In this article, the size, dimensions, volume, bulk and particle densities, empyting and filling angles of repose and friction coefficients against different surfaces were evaluated for two varieties of barley, Sahra and Valfajr, as a function of moisture content in the range of 10.12 to 42.17 (w.b.%). Most physical properties of barley varieties were significantly affected by moisture content variation. The length, width, thickness and unit mass of Sahra variety increased from 9.88 to 10.16 mm, 3.37 to 3.89 mm, 2.54 to 2.80 mm and 0.048 to 0.074 g, respectively, as the moisture content increased. The respective values for Valfajr varied from 8.37 to 8.87 mm, 3.03 to 3.21 mm, 2.21 to 2.37 mm and 0.037 to 0.043 g, respectively. In Sahra variety, sphericity, geometric mean diameter, bulk density, particle density and porosity increased from 44.59 to 47.40%; 4.38 to 4.79 mm; 568.10 to 613.68 kg m-3; 1,099.65 to 1,245.72 kg m-3 and 48.34 to 50.74%, respectively. The coefficient of static friction increased linearly against all the tested surfaces as the moisture content increased. In Valfajr variety, sphericity increased from 45.79 to 45.89%; geometric mean diameter increased from 3.82 to 4.06 mm; bulk density increased from 579.68 to 608.58 kg m-3; particle density varied from 1,410.82 to 1,230.61 kg m-3; porosity varied from 58.91 to 50.55% and the coefficient of static friction increased linearly against all the tested surfaces as the moisture content increased. The angle of repose for emptying and filling increased linearly as well.
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نویسندگان مقاله n آقاجانی |
gorgan branch, islamic azad university, gorgan, islamic republic of iran.
سازمان اصلی تایید شده: دانشگاه آزاد اسلامی علوم و تحقیقات (Islamic azad university science and research branch)

e انصاری پور |
department of food science and technology, gorgan university of agricultural sciences and natural resources, beheshti avenue, gorgan, islamic republic of iran
سازمان اصلی تایید شده: دانشگاه گلستان (Golestan university)

m کاشانی نژاد |
department of food science and technology, gorgan university of agricultural sciences and natural resources, beheshti avenue, gorgan, islamic republic of iran
سازمان اصلی تایید شده: دانشگاه گلستان (Golestan university)

نشانی اینترنتی http://jast.modares.ac.ir/article_4796_ae8a0dd043edc3855250f119d2102075.pdf
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