Control Mechanisms in Network Structures

Formulation of the problem of designing the optimal structure of an active system was considered within the framework of the game-theoretical model of interaction of its participants. Solution and the results of studying the control mechanisms in applications such as in-house management and multiagent systems were presented.     

Corrosion,Mechanical and Catalytic Properties of Coatings Based on FeNiCrWMoCoCB Metallic Glasses

Protection of Metals and Physical Chemistry of Surfaces - This work is devoted to the deposition of coatings based on FeNiCrWMoCoCB metallic glasses on a surface made of 35 steel; the deposition is...     

Synthesis of FeCrWMoC Metallic Glass by Electric Spark Treatment in Grain Media of Individual Components

FeCrWMoC metallic glass (MG) is synthesized in the form of coatings by electric spark treatment in grain media consisting of individual components. It is demonstrated that the amorphous phase fraction in the composition of the coatings increases with the time of the granule treatment increasing to 100–150 min. The proposed approach offers the potential for the one-stage synthesis of MG in the form of coatings in the automatic mode.     

Metallic nickel nanorod arrays embedded into ordered block copolymer templates

We report on metallic Nickel nanorods prepared by utilizing a mask of ordered nanostructured hollow channels in a block copolymer matrix. These polymeric templates were formed by a self organized process in block copolymer supramolecular assemblies. Nickel was filled into with two different techniques, electrodeposition and washing in. We monitor the formation process of these nanorods by means of atomic force microscopy and synchrotron radiation soft X-ray based photoelectron emission microscopy. The oxidation state of the nickelrods is evaluated with X-ray absorption spectroscopy and X-ray photoelectron spectroscopy at the Ni L edges and lateral distributions of the Ni nanorods were detected with micrometer resolved X-ray absorption spectroscopy. The finding is that the Ni rods were metallic despite their preparation under ambient conditions, inside the particles no hints for NiO complexes were found. This indicates that the polymer protects Ni nanoparticles against oxidation.     

Spectroscopic Properties of Bi12SiO20and Bi12TiO20Crystals Doped with Mn, Mn + P, Cr + P, Cr + Ga, and Cr + Cu

The absorption and circular dichroism spectra of Bi₁₂SiO₂₀and Bi₁₂TiO₂₀crystals codoped with Mn or Cr and a penta- (P⁵⁺), tri- (Ga³⁺), or divalent (Cu²⁺) element were studied. The results demonstrate that the sillenite crystals contain Mn and Cr in two oxidation states, 5+ and 4+. The introduction of P⁵⁺increases the fractions of Mn⁴⁺and Cr⁴⁺, while Ga³⁺and Cu²⁺have the opposite effect. The bands observed in the spectra are assigned to electronic transitions of [MnO₄]^4–and [MnO₄]^3–.     

Introduction of biochemical wastewater purification at OOO Mechel-Koks (stage I)

Systems for mechanical and biological wastewater purification have been introduced at OOOMechel-Koks. This represents the first stage of a two-stage project to introduce biochemical purification. Results obtained in the adjustment and debugging of the systems are presented.