Abstract: In this note we obtain the boundaries of the cavitation bubbles when the Reynolds conditions are used to treat the problem of the cavitation, in short journal bearings and in mechanical face ...

Abstract: The influence of static mechanisms on fatigue crack propagation in Ti and Ti-V microalloyed steels is considered. Small inclusions originate void nucleation. In contrast, TiN coarse particles ...

Abstract: A classical way of improving acoustical absorption performances of porous materials is the use of corrugated surfaces; this use can obtain lower cut-off frequencies and also improve the overall ...

Abstract: The dynamics of a walnut tree is investigated in order to better understand the mechanical interaction of trees with wind. Experimental data on the vibrational modes of the tree are obtained, ...

Abstract: The air pollution monitoring data records are not entirely complete, making it difficult to estimate the required statistical parameters with an acceptable error and level of confidence. An intercomparison of various ...

Abstract: The photocatalytic features of TiO2 doped with ferric oxides or mixed with activated carbon (AC-TiO2) are compared with those of the unmodified Degussa P-25 TiO2. These new catalysts show ...

Abstract: In the present work, it is shown that friction can be used to deposit diamond in a substrate of copper. Here it was found through electronic scan microscopy that a composite material film ...

Abstract: Electrokinetic remediation (EKR) is probably the only feasible alternative to treat contaminated soils with low hydraulic conductivity. This technology is based on the application of an electric current between two groups ...