At present, the development of algorithms is particularly relevant high-level analysis of video sequences, including tracking of objects in a video stream and their implementation in information and communication systems. In the proposed approach the pretreatment step uses optical flow calculation for each frame video sequence, as well as low-level features (such as a representation of each pixel in the color space YIU). For moving objects optical flow is more important than for a stationary background and allows you to find the foreground objects in video sequences and adjust the weighting function in determining the histogram similar to the adjacent frames, taking into account the motion of objects.
Keywords: computer vision, tracker, tracking of object, optical flow, motion tracking
The synthesis of nanocomposite FeNi3/C based on the PAN, FeCl3 · 6H2O and NiCl2 · 6H2O, whereby the first time by the IR heating at 400 ÷ 700 ° C obtained nanocomposite FeNi3/C FeNi3 particle size of 10 to 80 nm are uniformly distributed UM. Using thermodynamic calculations based on the minimization of the Gibbs energy, confirmed the synthesis of nanocomposite FeNi3/C at T=400 ° C reduction of Fe and Ni with H2, produced during the process of carbonization of polyacrylonitrile with infrared heating. Designed as a nano material of the films can be effectively used as a carrier material for a magnetic information recording superdense. Recording density is achieved in such a carrier (85-100) Gb/dyuym2.
Keywords: nanocomposite, polyacrylonitrile, infrared heating, recording information, the magnetic properties, the carbon matrix
In the present work we report on the study of local atomic and electronic structure of gold nanoparticles funnctionalised by thiol and amine containing long-chain ligands. The study of nanoscale atomic structure is performed by means of X-ray absorption spectroscopy (XANES: X-ray Absorption Near-Edge Structure) and computer simulation. In consequence of the experimantally obtained data analysis and computer simulation it was obtained that strong bonding takes place when 11-mercaptoundecanoic acid is bound to the gold nanoparticles surface, forming a chemical bond Au-S 0.25 nm in length. Weaker bonding is observed when forming bond between dodecylamine and gold nanoparticles surface atom resulting in Au-N bond 0.23 nm in length. Supplementary XANES spectra analysis by means of density functional theory reveals the nature of formation of the investigated nanoscale structure.
Keywords: nanoscale structure of matter, X-ray absorption spectroscopy, XANES, density functional theory, nanoparticles functionalisation
The paper studies the possibility of quantitative processing of the GPR data for determining the dielectric permittivity and conductivity of a medium (soil samples). Experimental studies are made using radargrams of soil samples with specified values of moisture and conductivity. New methods of quantitative processing of radargrams are proposed in this work to determine the dielectric permittivity and conductivity of soils. The methods were successfully tested on various sections of Russian railways net.
Keywords: layered road profiling, GPR, soil moisture, soil layers profiling, soil conductivity
The problem of specificity of training students in high school artists. Defines the principles and features of training on the theoretical and practical sessions. Identifies the purposes of higher education.
Keywords: art education, teaching, vocational training, self-development
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
In this article the problems of transport modeling, modeling methods of the paid roads, their features, advantages and disadvantages are considered.
Keywords: transport modeling, check-point on the paid road, point of collection of a fare, modeling methods, imitating modeling, the program AIMSUN complex
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
The results of computational experiments to determine the characteristics of the porous piezoelectric ceramics based on the methodology, including the effective modules method, simulations of representative volumes on a simple random method and the method of Witten-Sander, finite element method to solve static piezoelectric problems for heterogeneous composite media and the accounting of inhomogeneous polarization near the pores are presented. A comparison of the results of computer simulation with the known experimental data for the porous material PZT-4 and its analogs is realized. It is concluded that the accounting of inhomogeneous polarization in the vicinity of porous provide the better agreement between numerical results and large number of known experimental data. Thus, for most effective constants the smallest errors are obtained for a representative volume of the porous piezoelectric material, constructed by Witten-Sander method.
Keywords: piezocomposite, porous piezoelectric ceramics, inhomogeneous polarization, mathematical modelling, models of representative volumes, finite element method, effective moduli
The simulation of the process of the electrically active impurities relocation in the electric field of Schottky diode space charge region has been made. The analysis of the simulation results shows the possibility of controlled alloying impurities relocation on the depth about tens of nanometers caused by electrically active atoms diffusion in the electric field of Schottky diode space charge region.
Keywords: diffusion, space charge region, Schottky diode
Scientific-research Laboratory and industrial tests of equipment for NDT methods ZBK".The Department ELA RSSU conducted a series of laboratory and industrial tests of the device developed at the Department of ELAH for concrete structure NDT methods. A schematic and a description of the pathogen fluctuations and semiconductor receiver, as well as diagrams of dependence of the passage of the amplitude of oscillations of the pathogen in the concrete structure of the axial load.The most important results are obtained dependence of the amplitude of oscillations in ZBK from the amount of axial load from the composition of fillers experimental sample.
Keywords: Nondestructive testing, reinforced concrete constructions, the causative agent of oscillations, the receiver oscillation, the amplitude of oscillations, axial load.
The composition, basic properties and application scope of the two main types of expanding binders historically most widespread in Russia such as gypsum-alumina expansive cement and expansive cement Type M are given. The expansion kinetics of the binders ranging from gypsum-alumina expansive cement to expansive cement Type M is observed. The role of lime as a supplement and as a hydration product of the Portland cement in the expansion process is shown: as a supplement in small values (2-4%) to gypsum-alumina expansive cement with higher gypsum concentration stabilizes the hardening and expansion process, in higher values boosts the expansion process to self-destruction. Optimization criteria of the expansion kinetics aimed at obtaining project expansion in 10 days of hardening without any additional chemical additives are proposed.
Keywords: gypsum-alumina expansive cement, expansive cement type M, expansion kinetics, lime
The main maintenance of a diversification of production as activity of subjects of managing is considered. being shown in purchase of the operating enterprises, the organizations of the new enterprises, redistribution of investments in interests of the organization and development of new production on available floor spaces. The most important organizational economic targets of a diversification of management are presented by innovative activity of the industrial enterprise.
Keywords: Герметичный компрессор объемного действия, система охлаждения, холодопроизводительность, перегрев, холодильный коэффициент COP, энергоэффективность.
2-D and 3-D problems of the elasticity problems for incompressible materials are considered. Solving these problems using the finite-element method results in solving the linear algebraic equations system with sparse matrix. For incompressible materials this system is the system with a saddle point (i.e. the matrix eigen values have different signs). Thus, applying such solving methods as the conjugate gradient method and the generalized minimal residual method is impossible. Uzawa method is suggested to be used for such problems. It is an iterative process, and at each iteration it is necessary to solve the linear algebraic equations system, but this system is without a saddle point. The different variants of Uzawa algorithm are realized within CAE Fidesys software package, and their efficiency is compared in the article.
Keywords: theory of elasticity, incompressible materials, finite-element method, Uzawa algorithm, iteration methods for systems of linear algebraic equations
В данной статье приводятся примеры стандартных и не стандартных точек контакта с потенциальными клиентами, описаны механизмы их выявления, а также приведены примеры из практического опыта работы авторов по данной теме. Дано определение понятию «клиентоориентированнсть» с точки зрения клиента, и предложены варианты, где применима данная стратегия. Поднят вопрос о качестве обслуживания и что стоит за этим пониманием для клиента, чего он ждет от сферы услуг и на что рассчитывает. В статье рассмотрены этапы анализа точек контакта, приведены примеры влияния этих точек на формирование лояльного отношения клиента к качеству услуг.
Keywords: услуга, точки контакт, идентификация, стратегия, анализ, клиент, потребитель, контакт, точки взаимодействия, ориентация на клиента