A two-level model of information units is described. It can be used as a basis for computer tools for editing information with a complex structure with different levels of abstraction and invariance to technological spaces (subject domains) in a common conceptual framework for carriers of this information. Using editing tools which are based on this model makes it unnecessary to organize specialized training for these carriers or to involve professional intermediaries.

The paper presents the IACPaaS cloud platform, which is used for creating intelligent services based on ontologies, as well as the conceptual ideas and arc

Main features, functionality and perspectives of the IACPaaS platform are described. The platform provides three models of cloud services: PaaS, SaaS, and DaaS. It is intended for development of intelligent services and services with complex-structured data on the basis of several technologies.

Titanium-based alloys are widely used in aerospace engineering. They have good mechanical and corrosion properties but, in some cases, the material itself or the coating should meet some additional requirements. For example, it may be a requirement of high reflectance to provide effective temperature control. Wollastonite is a promising component for reflective coatings because it improves both their whiteness and mechanical properties. This paper presents the results of studying the composition, the structure and the adhesive strength of wollastonite-containing silicate coatings to titanium substrate. The surface of titanium samples was pre-treated by laser cladding with TiC and etching to provide surface porosity. It has been shown that such treatment allows a significantly increase in the adhesive strength of the coating to the substrate. A decrease in the adhesive strength was observed on titanium samples with an excess of TiO₂ on the surface. This is caused by the formation of crystalline PbTiO₃ at the interface.