The proposed method of designing hardware components optical switching systems simplifies prototyping and development of systems of optical switching and multi-core VLSI. This method allows to automatically set parameters of the optical system at the design stage, depending on the requirements. This method may be cost-effective at the stage of technical specifications of the project, as will reduce the time required for its coordination between the customer and the design engineer.
At the heart of developing a method of designing systems, optical switching elements is a comprehensive analysis of the equations and functions describing the electrical and optical properties of laser heterostructures, as well as electro-optic modulators and Fabry-Perrot resonators. Fundamental static and dynamic characteristics of semiconductor diode lasers can be calculated by using a set of kinetic equations describing the interaction of electrons, holes and photons in the active layer of the laser structure. At various stages of this method is processing, evaluation and calculation of the main characteristics of the elements of integrated optical switching systems.  

Keywords: optical switching, integrated injection laser, quantum-scale heterostructure, amplitude modulation, terahertz range

In this work we have investigated the structure of individual single-walled and multi-walled carbon nanotubes by high-resolution electron microscopy and electron diffraction. To grow carbon nanotubes we used a catalytic chemical vapor deposition method. It was shown, that this synthesis protocol gave in general single-walled and double-walled carbon nanotubes with a high level of crystallinity. The diameters of the nanotubes were in the range 1.5 - 7 nm. We also observed that there was a certain level of amorphous carbon deposited on the nanotube surface during the growth. In this work we also present the structure analysis of the double-walled carbon nanotube by means of electron diffraction. We show that the structural date derived from electron microscopy and electron diffraction agree within the experimental error.

Keywords: Carbon nanotubes, electron diffraction, electron microscopy

The atricle considers the problem of finding the best carrier. It describes by the expert method of solving the problem, as well as an algorithm for selecting a carrier. Describes a software module implemented with the involvement of technology ActiveX, which greatly simplifies the process and reduces the development time of projects. The proposed application allows you to define a list of the best carriers, ranked by rating according to the user's request.

Keywords: Carrier selection, expert method, weighting coefficient, rank, user application

The article suggests improvement of increment borer construction by means of installing a ratchet into its handle. The suggested technical solution will allow increasing the efficiency of work with a borer while taking core of wood.   

Keywords: Increment borer, preparatory works of forest logging, tree age, ratchet, core.

Identification of railway vehicles is relevant for the conversion from automatic control systems with manual data input to automatic modeling environment of train and vehicle. The most effective and economic inventory number recognition is optical recognition. But there is question about veracity in such technology. This paper represent the qualitatively new approach for optical recognition based on building integral robust constructive features of vehicles and allowed to significantly increase level of recognition veracity. Proposed technique investigated in introduction subject of automatic vehicle number recognition system (ARNV).  Computational experiments demonstrated relevance of proposed technique for using in optical recognition of vehicle numbers.

Keywords: Automatic systems, number identification, vehicle, optical recognition, ARNV, robust features

The article deals with interference suppression algorithms that arise in the ECG signal by moving of the electrodes due to the motion of the object. It is proposed to use an adaptive filter, which reference signal is provided by the data triaxial accelerometer.

Keywords: electrocardiogram, adaptive filtering, motion artifacts, electrophysiological signal adaptation algorithm

Modern ultra-tight integration structure of strapdown inertial systems and global positioning system, based on the linearization of the navigation measurements and linearization of measurement errors models, are not not applicable for motor vehicles navigation. The adequate standard stochastic model of the vehicle perturbed motion has been synthesized. The model can be used for the integration Kalman filter. Such correlations can result in poor real-time estimation accuracy of navigation parameters of motor vehicle.

Keywords: motor vehicle, stochastic model, integration structure of strapdown inertial systems and global positioning system

The existing approaches to the integration of relatively cheap strapdown inertial navigation system (SINS) based on MEMS-based technology and satellite navigation systems (SNS) are ineffective in relation to motor vehicles. We consider the iterative algorithm for the loosely coupled mode of integration of heterogeneous navigation systems do not intend to use the optimal estimation. The solution is obtained on the basis of the fully nonlinear model of the navigation system of the vehicle and the, therefore, is valid for arbitrary and unknown in advance nature of his movements, and, in the most general assumptions about the level of disturbances acting upon him.

Keywords: vehicle, integrated inertial navigation satellite system, loosely coupled iterative algorithm

The technique of space-time processing of acoustic signals with the use a convolution algorithm the purpose of application of which is the spatial positioning of the virtual soun sourse (auralization) is com=nsidered in this article. Also the reverberation chatacteristics of a modeled acoustic environment are take into consideration.

Keywords: auralization, HRTF, artificial reverb, room simulation, convolution algorithm, impulse response convolution, impulse response synthesis, dynamic convolution, complex filtering

The paper is dedicated to development of modified technology of producing and erection of large fiber-reinforced plastic (FRP) shells. This work gowing with the support of Russian Ministry of science and education. Technology is baced on the method of the vertical wet winding with the growing. The main prospective area of using of this technology, is the reconstruction of the tall chimneys with the erection of inner liner from the FRP shells.  

Keywords: fiber reiforced plastics, glass reinforced plastics, chimneys, metod of the vertical wet winding with the growing

The article is dedicated to the description of the simulated model of the heat producing base making it possible to estimate the resource of energy efficiency of the prototype system and its requirement of fuel, elecrtic energy and water. There are some different ways of decomposing of application cases of energy efficiency measures depicted in the article.

Keywords: economic impact, direct and indirect cost, risk assessment, replacement value, NPV

The simulation of two-dimensional spherical crystals consisting of a large number of particles is carried out. These shells were analyzed based on their geometric structure and energy distribution. Various types of defects formed in a state of equilibrium  is considered. Being shown the ambiguity of the existing method of their interpretation. A new way of describing such defects in the close-packed two-dimensional crystals with different topology is suggested.  

Keywords: topological defects, two-dimensional materials, spherical crystals, topological charge

The kinetics of the electrodeposition of zinc to the steel base of the sulfate electrolyte supplements with synthetic surfactants was studied. Found that at potentials more positive than the equilibrium value the process of pre phase zinc deposition. Additives synthesized organic compounds adsorbed to the surface of the electrode at its cathodic polarization, increasing of overvoltage process. The adsorption is in the range of 0,5•10-7 to 2,6•10-5 mol/сm2.

Keywords: zinc, electrolyte, electrode, surface-active agents (surfactants), electrodeposition, adsorption, diffusion coefficient, and pre phase deposition

Calcating-experimental method shows that on the basis of cement and fine-grounded mineral powder, complex binding materials can be obtained, providing high strength of obtained stones.

Keywords: cement, mineral powder, components, optimization, strength

This work deals with the integrated study of the composition and structural characteristics of the rock-forming minerals in Millerovsky bentonite clay. The qualitative and quantitative analysis of the clay samples is made by X-ray diffraction , X-ray photoelectron spectroscopy and thermal analysis . The morphological and microstructural features of minerals are investigated by scanning electron microscopy. The application of the method of direct theoretical calculation of the diffraction patterns is showm to determine the crystal-chemical parameters of the studied minerals. The results are aimed at explaining a number of physical and chemical properties of layered aluminosilicate.

Keywords: clays, clay minerals, layered silicates, x-ray diffraction, crystalline systems