– The flow of granular matter such as sand is often characterized by the motion of a thin superficial layer near the free surface, while the bulk of the solid remains immobile. A pair of equations called the BCRE equations (Bouchaud J-P., Cates M. E., Ravi Prakash J. and Edwards S. F. J. Phys. 4 (1994) 1383) have been proposed to model these flows and account for the dynamic exchange of mass be...

Uniformity in the deposition of granulated fertilizers seed furrow is essential for crop development and productivity. Quantitative (dose flow) qualitative factors (segregation formulation) influence fertilizer distribution throughout its application. This experiment aimed to compare two with different chemical formulations (04-14-08 04-30-10), using helical overflow metering mechanism at three...

Abstract Purpose The discrete element method (DEM) can be used in agricultural fields such as crop sowing, harvesting, and transportation. Nevertheless, modeling complex crops appropriately shaped particles remains challenging. of the calibration input parameters are important for simulating realistic behaviors using DEM. Methods In this study, particle models representing morphological charact...

Corn kernel shape is an important feature to improve the accuracy of simulation results, also repose angle often used calibrate model parameters in simulation. In this study, effects corn shapes on behavior during kernels accumulation were investigated detail. Firstly, DEM models three typical developed. Secondly, influences process for forming investigated, such as distance change, energy conv...

Purpose This paper aims to present a hierarchical motion planner for planning the manipulation repose long and heavy objects considering external support surfaces. Design/methodology/approach The includes task-level layer motion-level layer. formulates problem at task level by grasp poses as nodes object edges. considers regrasping constrained in-hand slip (drooping) during building graphs find...

The combination of citric acid-tartaric acid and sodium bicarbonate in effervescent granules has an important role providing effect. Citric tartaric are organic acids that can react with when they come contact water. This reaction results the release carbon dioxide gas, which a splitting effect makes dissolve rapidly Research on formulation evaluation andaliman fruit ethanol extract aims to opt...

The study aimed to determine the biotechnical characteristics (physical properties, color characteristics, angle of repose, and coefficient friction) seeds safflower cultivars. Moisture contents Asal, Balcı, Dinçer cultivars were determined as 8.64%, 9.52%, 8.57%, respectively. width (4.04 mm) cultivar gave higher values than other Statistically significant (p