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首页> 外文期刊>African Journal of Biotechnology >Some engineering properties of white kidney beans (Phaseolus vulgaris L.)
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Some engineering properties of white kidney beans (Phaseolus vulgaris L.)

机译：白芸豆的某些工程特性（菜豆）

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Some engineering (physical and mechanical)?properties of white kidney bean grains (Phaseolus vulgaris?L.) were determined as a function of moisture content in the range of 10.01 to 25.00% dry basis (d.b.). The average length, width and thickness were 8.638, 16.747 and 4.958 mm, at a moisture content of 10.01% d.b., respectively. Nonetheless, the thousand grain?mass increased from?472.5?to?696.2?g, the projected area from?128.13?to?198.83?mm2,?the true density?from 1128.05 to 1290.85 kgm-3,?the porosity from?39.79?to?56.38% and the terminal velocity from?5.51?to8.50?ms-1?in the moisture range from 10.01 to 25.01% d.b. The static coefficient of friction of white kidney bean grains increased linearly against surfaces of six structural materials, namely, rubber (0.501 to 0.727),?stainless steel (0.384?to?0.468),aluminium (0.345?to?0.499), galvanized iron (0.346?to?0.489),?medium density fibreboard (MDF) (0.325?to?0.426) and?glass (0.287?to?0.345)?as the moisture content increased from?10.01?to 25.00% d.b. The shelling resistance of white kidney bean grains decreased as the moisture content increased from 105.18 to 71.44 N.
机译：确定了白芸豆谷物（菜豆）的某些工程（物理和机械）特性，作为水分含量的函数，以干基的10.01至25.00％为范围（d.b.）。平均长度，宽度和厚度分别为8.638、16.747和4.958mm，水分含量分别为10.01％d.b.。然而，千粒质量从472.5增加到696.2 g，投影面积从128.13增加到198.83 mm2，真实密度从1128.05增加到1290.85 kgm-3，孔隙率从39.79增加到在10.01至25.01％db的湿度范围内，α达到56.38％，终端速度从5.51到8.50 ms-1。白芸豆颗粒的静摩擦系数相对于六种结构材料的表面呈线性增加，这六种结构材料分别是橡胶（0.501至0.727），不锈钢（0.384至0.468），铝（0.345至0.499），镀锌铁（0.346到0.489），中密度纤维板（MDF）（0.325到0.426）和玻璃（0.287到0.345）随着水分含量从10.01到25.00％db随着水分含量从105.18 N增加到71.44 N，白芸豆粒的抗脱壳性降低。

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