The discrete element method (DEM) was used to establish the slump model and J-Ring of concrete describe flow behavior in test test. Then, contact parameters particle-particle particle-geometry for DEM model, including restitution coefficient, rolling friction static surface energy, were measured. In order avoid influence shape size aggregate, this paper high-precision glass spheres as aggregate...

Powder blend homogeneity is a critical attribute in formulation development of low dose and potent active pharmaceutical ingredients (API) yet a complex process with multiple contributing factors. Excipient characteristics play key role in efficient blending process and final product quality. In this work the effect of excipient type and properties, blending technique and processing time on con...

ABSTARCT:Emulsion Solovent Diffusion (EDS) technique combines crystallization and agglomeration directly to generate spherical agglomerates with improved micromeretic properties, thus obviating need for further processing by granulation and agglomeration. The present study was focused on spherical crystallization of an antifungal drug Gresiofulvine (GRV) using above mentioned ESD technique in w...

The problem of flowability in a closed forging process for heavy equipment industry is still widely found and this may affect the quality resulting product. To obtain solution problem, work, effect heating temperature die insert draft angle on characteristic hot forged SCM435 steel used undercarriage track roller has been examined. workpieces were heated at variations 1150 °C, 1200 1250 °C angl...

Fire-extinguishing powders based on ammonium phosphates (FEP) have a high specific fire-extinguishing ability. However, during storage, their technical characteristics deteriorate, which reduces the efficiency to extinguish fire. To solve this problem, authors considered promising direction for improving properties of FEP by using superhydrophobic functional additives silicon dioxide particles....

Structural changes during sludge treatments impact flowability and raise severe technical issues. In this study, the consistency is analysed using thread rolling test. Transition from pasty to granular-like material occurs at a total solid (TS) content of 43 wt%. A granular rheometer used characterize sludge's over wide range TS content. The typical powder-like behaviour recorded whatever conte...

This study evaluated tristrontium aluminate (S3A) and its viability as a component for tricalcium silicate (C3S) cements. The properties of S3A, C3S, S3A/C3S mixtures were in terms setting time, compressive strength, flowability, radiopacity. X-ray diffraction (XRD) pattern verified the powder synthesized laboratory consequently, confirming preparation method. S3A exhibited lowest followed by C...