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Moisture-dependent physical and mechanical properties of cumin(Cuminum cyminum L.)seed 被引量:2
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作者 Kaveh Mollazade Hojat Ahmadi +2 位作者 jalal khorshidi Ali Rajabipour Seyed Saeid Mohtasebi 《International Journal of Agricultural and Biological Engineering》 SCIE EI CAS 2009年第2期49-56,共8页
Some physical and mechanical properties of cumin seed were obtained as moisture content changed from 7.24%to 21.38%d.b.Increasing of moisture content was found to increase the seed length(5.14-5.58 mm),width(1.33-1.55... Some physical and mechanical properties of cumin seed were obtained as moisture content changed from 7.24%to 21.38%d.b.Increasing of moisture content was found to increase the seed length(5.14-5.58 mm),width(1.33-1.55 mm),thickness(0.97-1.05 mm),arithmetic mean diameter(2.48-2.73),geometric mean diameter(1.88-2.09 mm),surface area(10.34-12.66 mm^(2)),thousand seed weight(2.9-3.9 g),porosity(51.22%-64.11%),true density(917.8-1030.6 kg/m3),static angle of repose(43-49 deg),dynamic angle of repose(47-56.6 deg),and coefficient of static friction on the three surfaces:glass(0.48-0.77),galvanized iron sheet(0.36-0.73),and plywood(0.57-0.69).However,bulk density was found to decrease from 447.66-369.88 kg/m3,and rupture force and rupture energy along with seed length and width were found to decrease from 83.74-56.17 N,132.95-84.47 N,50.66-27.52 mJ,and 67.8 to 33.36 mJ,respectively.The sphericity increased from 36.63%to 37.5%with increasing in moisture content from 7.24%to 14.5%d.b.and then reduced to 37.5%with further increase in moisture content to 21.38%d.b. 展开更多
关键词 SEED engineering properties MOISTURE POROSITY density medical plant
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