Fundamental research

We propose a new generalized integrated approach for developing effective methods to increase the capacity of broadband radioaccess systems (BRAS) while providing the required error-rate performance and taking into account their characteristics, based on the interaction between system resources: energy and band. We obtained methods for improving the capacity of BRAS based on mathematical models, procedural, structural and systemic solutions for the effects of the time varying fading channel, thereby creating scientific basis for the creation of new next generation BRAS.

In this paper on develop of the theory of construction and syntes plural coordinations microsystems end sensors of a mesurement of use IP end nano-microtechnology. On propose the metodologie miniaturize mechanical devices and components, This plural coordinations microsystems is the systems alternative the systems navigation. In this paper on presence the synthesis methods of create plural coordinations microsystems end sensors of a mesurement of use IP end nano-microtechnology. The plural coordinations microsystems caracterise the neu caracteristique metrologie.

The influence of the kinetic parameters of the process of directional solidification from the melt and directional sintering in the dispersed state, crystal chemistry and diffusion properties of the initial components, energy parameters of elastic waves, the nature of alloying components on the structural and geometric characteristics of the phase components of ceramic composite materials are investigated.

In theory obgruntuvani possibilities of complex satiation of staley and alloys by titan, chrome, vanadium, nitrogen, carbon, set conformities to law and features of forming on-the-spot of wares of multi-layered coverages with a heterogeneous structure on the basis of carbides, nitridiv, oxides of transitional metals, aluminium, with the high complex of physical, mechanical and chemical properties for the increase of production indexes of details of machines, instruments, rigging.

A number of approaches and methods was developed for creating of data warehouses for scientific and educational purpose. Developed werehouses unlike most analogues are oriented on the task analysis of unstructured data sets rather than on the problem of documents flow. In particular, the method of warehouse architecture oriented on semantic and advanced analytical processing was designed. Ways to support very large repositories of text data based on the use of cluster computing technologies was developed.

Electrodynamic models of scattering the electromagnetic waves on the systems of coupling dielectric resonators of the infrared wavelength ranges in the regular and the below cutoff waveguides as well as in the open space have been formulated. It`s developed electrodynamic models of the electromagnetic waves pulses are scattering on the systems of coupling dielectric resonators. The advantages of the proposed method are outlined. It showed a possibility of band stop and band pass filters creation on a basic resonances of dielectric resonators in the infrared wavelength ranges.

Investigation of the mechanisms of bioleaching minerals extractant can use their patterns for selective removal of target chemical elements. The estimation of possibility of organic acids to the reactions of lixiviating was executed after classic thermodynamics parameters – the change of energy of Gibbs (∆G0f), enthalpy of formation of reaction products (∆H0f), entropy of reaction (∆S0f), energy of activating of lixiviating process (Er), constant of equilibrium of reaction (Kr) and energy of crystalline grate of having a special purpose mineral (Ucryst).

Automated modeling is an effective tool for the design of high-quality technology and the processes of its production. The fundamental basis of information in engineering are geometric patterns that are formed using a variety of computer-automated systems.

A theory of multi-shell systems to develop new methods that provide the ability to model the nonlinear deformation and fracture of shell systems through mobile and physically reasonable basis redefinition the expansion depending on the changes in physical - mechanical characteristics of the structure in the development process of zones of plasticity and fracture of layers of the investigated object. Has developed a new concept of the iterative construction of the functions of bringing a refined theory of multilayer shells and plates.

Based on an analytical review of scientific publications the goal and general guidelines were grounded. The prospects of using structurally modified and structurally inhomogeneous materials based on titanium and aluminum alloys were shown.

The analysis of power loading schemes of isothermal extrusion was made. Typical schemes of loading as a result of structural and logical analysis were classified depending on the impact of shear stresses, which are proportional to the forces of friction, on the overall stress state in the cell strains.