Composites are materials composed of two or more different materials, forming a heterogeneous class of materials which differ in physical and chemical properties. Recent studies on biodegradable polymer composites reinforced ...

Expanded composites or vegetable fiber-reinforced cell composites are a new emerging class of materials combining good mechanical properties of reduced density, having superior ability of energy absorption at impact, as ...

Nowadays, preoccupation with the environment has stimulated the use of biodegradable polymers substituting the synthetic ones, which are harder to degrade under different conditions. However, the properties of the ...

The main purpose of this work was to evaluate the use of the respirometric technique as a tool to monitor the activated sludge processes when adverse conditions to the treatment process are imposed to the system. The ...

The use of rubber powder coming from tires through its thermal conversion, adding economic value to it through their pyrolysis products may represent a solution to the environmental problem of disposal of this waste. Two ...

The use of ramie fibers as reinforcement in polymer composites is justified considering their satisfactory mechanical properties in comparison with other natural fibers, and their hybridization with synthetic fibers can ...

Nozzles with convergent-divergent geometry are designed and manufactured for the establishment of supersonic flows. The main objective of this work is to verify the variation of isentropic efficiency depending on the ...

The process most commonly used for surface hardening of steels is annealing. Using conventional thermal treatments, hardened layers were formed on SAE 1020 and SAE 8620 steel by diffusion of carbon into the surface. The ...