Corrosion is a major challenge in various industries and can cause significant damage to metal structures. Organic corrosion inhibitors are compounds that used reduce or prevent by forming protective film on surfaces. The present review article focuses natural synthetic organic their classifications, active functional groups, efficiency estimations. Furthermore, previous studies the use of disc...

Abstract The thermal resistance of semiconductor thin films is predicted using lattice dynamics (LD) calculations and molecular dynamics (MD) simulations. We consider Si and Ge films with thicknesses, LF , between 0.2 nm and 30 nm that are confined between larger extents of the other species (i.e., Ge/Si/Ge and Si/Ge/Si structures). The LD predictions are made in the classical limit for compari...

We develop in this paper the theory of covers for locally definable groups in o-minimal structures.

Suppose that Wis a countable K0-categorical structure. We investigate the question as to whether every finite cover of W splits, that is, has an expansion which is a trivial finite cover of W. We show that for most primitive structures W which are homogeneous for a single binary relation (homogeneous graphs, partial orderings, the Henson digraphs,...) any finite cover splits. However, in contra...

Blown Film Extrusion is the primary technology used to make plastic films especially for the packaging industry. Its machines produce protective films used in many industries including food and pharmaceuticals – that extend product shelf life and improve consumer appeal. Products such as trash bags, frozen food packaging, shrink wrap, stretch film labeling, form, fill and seal packaging, medica...