In this paper authors focus on determination of the threshold velocity of re-suspension for particles 10 m in an urban street canyon with two-way traffic. The urban wind threshold velocity of re-suspension is derived from a long-term measurement carried out in the city of Brno. A numerical modelling based on the finite volume method is used for a detail study of the relation between a wind velo...

The force-coupling method (FCM) represents the dynamics of low Reynolds number suspension flows through a distributed, low-order, finite force-multipole expansion and provides an efficient, matrix-free method to solve the mobility problem for the particle motion. In concentrated suspensions, strong short-range lubrication forces are generated between particles in close proximity as fluid in the...

• Thermally processed and untreated Al particles were reacted as suspended powder. Phase fractions of the 2 O 3 produced are linked with global radiant fluxes. Two different heat transfer rates for fast slow burning identified. The experimental methods used condense-luminescence. Condense-luminescence is energy from gas to condensed phase transition. Thermal processing aluminum (Al) such anneal...

Impurities in crystals generally cause point defects and can even suppress crystallization. This general rule, however, does not apply to colloidal crystals formed by soft microgel particles [Iyer ASJ, Lyon LA (2009) Angew Chem Int Ed 48:4562-4566], as, in this case, the larger particles are able to shrink and join the crystal formed by a majority of smaller particles. Using small-angle X-ray s...

In this study, the effect of particle size of genistein-loaded solid lipid particulate systems on drug dissolution behavior and oral bioavailability was investigated. Genistein-loaded solid lipid microparticles and nanoparticles were prepared with glyceryl palmitostearate. Except for the particle size, other properties of genistein-loaded solid lipid microparticles and nanoparticles such as par...

The object of the present work was formulation and in vitro evaluation of 5-Fluorouracil nanoparticles incorporated in sucralfate suspension as drug delivery system. Sucralfate acts as the cytoproytective agent and carry the antineoplastic drug loaded nanoparticles to the carcinoma site in the g .i.t which will protect and alleviate the carcinoma. 5-Fluorouracil nanoparticles were prepared by n...

Microparticles are widely used as solid phase for affinity-based separation. Here, we introduce a new method for automated handling of microparticles in centrifugal microfluidics that is not restricted by the particle size and requires neither auxiliary means such as magnets nor coating of microfluidic structures. All steps are initiated and controlled by the speed of rotation only. It is based...