New high-efficiency low-waste technology at the Vyksa Metallurgical Plant for operating metallurgical equipment with the use of Kompaks® monitoring systems

Introduction of the BER? KOMPAKS® automated system at the Vyksa Metallurgical Plant to safely and efficiently manage the operation of the plant’s equipment has allowed the facility to begin operating that equipment based on real-time evaluations of its actual physical condition. Introduction of the new system has also allowed better coordination of repair-scheduling with ongoing production operations, significantly improved the reliability and readiness of the equipment for operation at 100% capacity, completely eliminated the human factor from the process of monitoring the condition of equipment, and made it possible to check the quality and timeliness of equipment maintenance and repair work so as to ensure safe, efficient operation of the entire production complex.     

Specificities of data page representation in projection type optical holographic memory system

The matter of the present article covers the results obtained during the development of holographic memory record system based on projection of computer-generated amplitude Fourier holograms. The basic issue is the investigation of representation specificities of binary data pages, which were choose to be encoded on computer-generated amplitude Fourier hologram and then recorded on photosensitive medium as microhologram using simple projection optics and spatial light modulator. Limitations of data page resolution caused by limited resolution of SLM that is used to display the digitally synthesized holograms are discussed. Also the results of random phase coding of data page during the holograms synthesis research are presented.     

Investigation of Charge Transfer and Degradation Features in Bilayer Zr-ZrO<Subscript>2</Subscript>

The mechanism of charge transfer in bilayer system Zr-ZrO₂ and its conductivity in the initial state and after degradation were investigated. The anodization parameter was calculated, permitting to set the thickness of the oxide layer at anodic oxidation of zirconium. The degradation mechanism of layer systems Zr-ZrO₂, determined by increasing the oxide conductivity and accompanied by geometrical growth of oxide layer thickness, is outlined in this article.     

Anisotropy of the U–Mo alloy: Molecular-dynamics study

Metastable structures of homogeneous U–Mo phases formed in the course of alloy solidification have been studied by the method of atomistic simulation. It has been shown that, at low molybdenum concentrations, a phase with a tetragonal lattice is more stable. This structure can be considered as close to a body-centered cubic structure with the central atom slightly displaced from the center of the unit cell. The calculation results are in agreement with the experimental data and confirm the anisotropy of the alloy structure. With increasing molybdenum concentration, a gradual transition to a cubic structure occurs. However, this transition occurs due to the accumulation of centers of the stabilization of the cubic structure represented by molybdenum atoms, rather than via changes in the uranium-atom positions.     

Monte Carlo simulation of 2D TASER

A possibility to develop the so called TASER (Terahertz-Amplification-by-the-Stimulated-Emission-of- Radiation) by using two-dimensional (2D) electron transport in quantum well (QW) structures is investigated by Monte Carlo simulation of the optical-phonon-emission assisted transit-time resonance (OPTTR) of 2D electrons in momentum space under the low lattice temperature. A considerable extension of the frequency region for THz radiation generation (upto 5 times) when going from 3D- to 2D-case is predicted.     

Electrical Conductance in Biological Molecules

Nucleic acids and proteins are not only biologically important polymers. They have recently been recognized as novel functional materials surpassing conventional materials in many aspects. Although Herculean efforts have been undertaken to unravel fine functioning mechanisms of the biopolymers in question, there is still much more to be done. Here the topic of biomolecular charge transport is presented with a particular focus on charge transfer/transport in DNA and protein molecules. The experimentally revealed details, as well as the presently available theories, of charge transfer/transport along these biopolymers are critically reviewed and analyzed. A summary of the active research in this field is also given, along with a number of practical recommendations.