The goal of this study was improvement of sandy soil using a combination of polystyrene foam container waste and Portland cement. For this purpose, Babolsar sand was used as the base soil. Strips of disposable polystyrene foam container waste in “chips” of 50 ´ 5 mm and 50 ´ 10 mm were added to the soil at 0.0%, 0.1%, 0.2% and 0.3% by weight along with 3% Portland cement at a relative density o...

A model aqueous film-forming foam (AFFF) comprising a fluorocarbon surfactant (6:2 FTSaB), hydrocarbon surfactant, solvent, and water was deployed on heptane fire with the gravimetrically-drained solution collected at regular time intervals analysed for concentration. Foam drainage behaviour within system non-linear both control (no exposure) fire-exposed tests, as would be expected. However, c...

introduction: freezing is one of the ways to extend the shelf life and improve the chemical and microbiological stability of food products. food products are exposed to different processes and the functional properties of the products change during these processing. hydrocolloids are used to stabilize the products undergoing different food processing. however the addition of hydrocolloids to fo...

We biomechanically investigated whether the standard dynamic hip screw (DHS) or the DHS blade achieves better fixation in bone with regard to resistance to pushout, pullout and torsional stability. The experiments were undertaken in an artificial bone substrate in the form of polyurethane foam blocks with predefined mechanical properties. Pushout tests were also repeated in cadaveric femoral he...

Collapse of liquid films in a foam is characteristic compared to that individual films. The mechanism and physical conditions collective bubble collapse which directly contribute stability have been clarified.