We present a mathematical model that relates the surface morphology of randomly surface-textured thin films with the intensity distribution of scattered light. The model is based on the first order Born approximation see e.g., M. Born and E. Wolf, Principles of Optics, 7th ed. Cambridge University Press, Cambridge, England, 1999 and on Fraunhofer scattering. Scattering data of four transparent ...

In abiotic degradation the action of light radiation is one of the most important parameters, because polymers undergo degradation due to the action of light (natural or artificial). The aim of this study was to investigate the degradation rate for samples of polypropylene (PP) modified with an organic pro-degradant submitted to ageing in a natural environment and to accelerated ageing test. Th...

In this study, the effect of surface roughness and roughness morphology on the bond strength of WC-Co-Cr coatings has investigated. The three different surfaces morphology are use for this purpose. The first and tow samples sandblasted with alumina and silicon carbide respectively. Other sample no sandblasted before spraying process. The same WC-10Co-4Cr coating deposited on the substrates with...

Traditional morphology, that cranks out ‘underlying representations’ destined for phonology, has a serial character that makes it an odd bedfellow to parallel OT. The problem becomes all the more acute once one recognizes the need for ‘surface-to-surface’ faithfulness constraints (Benua 1997, Burzio 1994a, Kenstowicz 1996, Steriade 1996), given the ability of the latter to do -in parallelsome o...

In this work, Poly(ethyleneterephthalate) (PET) substrate was treated using KOH solution and was modified using hybrid O-I coating containing PCL )polycaprolactone( as organic phase and TEOS )tetraethoxysilane( as inorganic phase. The coating was prepared through a sol-gel process and applied on the surface by dip coater. Then, electrically conducting polythiophene (PTh) nanoparticles were depo...