In discrete element method (DEM) simulations, accurate simulation parameters are very important. For ellipsoidal soybean seed particles, the rolling friction coefficient between particles (RFCP-P) and coefficients particle boundary (RFCP-B) difficult to measure experimentally therefore need be calibrated. this paper, of three varieties with different sphericities were taken as research objects....

limited data exist about the production of extruded linseed as a feed ingredient in farm animal nutrition. the objective of this study was to produce and evaluate extruded linseed mixed with alfalfa hay, pistachio by-products, and sugar beet pulp or corn grain in different proportions of linseed: alfalfa hay: pistachio by-products at ratios of 70:15:15, 70:20:10, 70:10:20, and 80:10:10 for qual...

the purpose of this work was to develop once daily sustained release (sr) matrix tablets of naproxen, an anti-inflammatory agent. the tablets were prepared by wet granulation method along with hydrophilic matrix materials like methocel k 15m cr and methocel k 100m cr. the granules were evaluated for bulk density, angle of repose, compressibility index, total porosity and drug content. the table...

S U M M A R Y Volcanoes usually show signs of unrest before an eruption. Establishing physical controls on the duration of precursory activity, that is run-up time, could improve understanding of the dynamics of magma ascent from a shallowmagma reservoir to the surface. Another observable indicative of eruption dynamics is the interevent repose time, that is, the time betweenmagmatic eruptions....

     The purpose of this work was to develop once daily sustained release (SR) matrix tablets of naproxen, an anti-inflammatory agent. The tablets were prepared by wet granulation method along with hydrophilic matrix materials like Methocel K 15M CR and Methocel K 100M CR. The granules were evaluated for bulk density, angle of repose, compressibility index, total porosity and drug content. The ...

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...

Understanding the unusual radar scattering characteristics of sand dunes is necessary in the analysis of radar images of aeolian landscapes of the earth and of other planets. In this paper we report on airborne radar scatterometer data of sand dunes, acquired at multiple frequencies and polarizations. Radar backscatter from sand dunes is very sensitive to the imaging geometry. At small incidenc...

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...