نتایج جستجو برای: stem cutting
تعداد نتایج: 316432 فیلتر نتایج به سال:
Based on the cutting force theory, the cutting stress in end milling operation was predicted satisfactorily through simulation of using finite element method. The mechanistic force models were introduced in high accuracy force predictions for most applications. The material properties in the simulations were defined based on the cutting force theory, as a function of strain and strain rate wher...
Due to a lack of an accurate model in finite element simulation mechanized harvesting wild chrysanthemum, the stem chrysanthemum period is taken as research object. ANSYS Workbench 19.0 software and LS-DYNA (LS-PrePOST-4.3-X64) are used calibrate cutting. The diameter distribution at cutting height obtained. maximum shear forces different diameters (7 mm, 8 9 10 11 mm) within range determined 1...
using apple clonal rootstocks is necessary for improving crop efficiency in apple orchards. after graftingof apple cultivars on malling rootstocks, the extra parts of the rootstock was used as stem cuttings. apical,middle and basal parts of these shoots were used as cuttings. two propagation conditions, greenhouse andnursery and three concentrations of indole-3- butyric acid (iba) on rooting, c...
In order to study the relationships among traits and grouping genotypes of wheat, 11 promising lines of winter wheat along with Orum, Zareh, Mihan, Zarrin and peshgam cultivars were evaluated under two levels of irrigation (complete irrigation and cutting irrigation from flowering to maturity) at Agricultural Research Station of Miandoab during 2013-2014 and 2014-2015 growing seasons. The exp...
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