Coding of information using of pseudo-random sequences  in quantum communication systems providing an operation with a low probability of single-photons detection is proposed. The results of statistical modeling of information extraction from the bit stream, received at different specified probability of detection based on the correlation properties of the M-sequences are demonstrated. It's demonstrated that the peak value of cross-correlation function for the M-sequence of 255 bits is on the average more than 2 times higher  than the level of side lobes at the probability of single-photons detection 20%.

Keywords: quantum communications, single-photon detector, maximum length sequence

Time Division Multiplexing is the one of the main information transmission technology. Main problem of this method is the large amount of empty of traffic. This number can reach about 97%. In article presents a method for reducing amount of empty traffic by using the new system pointers, that encode information about the frame . Pointer consists of three components : a pointer to a smaller source (points to the source that gave less information ), a pointer to a smaller amount of information and a pointer to the source memory block (points to the memory block , where the frame was formed ). This pointer is generated when creating a frame and is written in the first data slot. After transmitting a frame pointer is decoded, and based on this information, the distribution of data occurs on the output signals. The developed method has several advantages over similar methods of data transmission, does not depend of the speed of data sources, and have minimum depends on amount of input signals. This technology allows to fill information cells only useful information, and improve the efficiency of code up 96.6 %.

Keywords: Time division multiplexing, traffic reduction, statistical multiplexing, static multiplexing, frame coding

An optimal control algorithm for compensating converters. This algorithm provides control of active and reactive components of power consumption. The algorithm allows to reach a balance  between the values ​​of the angles  controls αi and αe . In the algorithm used is a method for solving equations by iteration. In article materials of the state contract № 16.526.12.6016 on 11.10.2011.

Keywords: compensation converter, frequency converter, control algorithm, objective function, iterative method

The research of algebraic cryptanalysis method was carried out in this work. Systems of the equations for tables of various sizes of nonlinear transformations of substitution for simplified model of GOST28147-89 algorithm are received, also we solve a one of this systems by a XL method. During this work we produced a program, which has realised a generation and solving of system of equations describing nonlinear transformations of substitution. We analysed a nonlinear systems of equations and calculated a value of complexity of XL method for eight blocks of substitution.

Keywords: Algebraic cryptanalysis, XL method, nonlinear transformations of substitution, linearization nonlinear systems, Gauss elimination method, a cryptographic key, GOST28147-89 encryption algorithm

This paper outlines the implementation of computer model of second-order visual mechanisms that are specific to spatial contrast modulations, and represents the results of testing the model. Computer simulation is based on "Filter-Rectify-Filter" model with some important additions. The inhibitory parts of receptive field of simulated mechanism are non-selective to orientation and spatial frequency of texture elements. Texture modulated by orientation or spatial frequency does not reduce flank inhibition and does not activate the mechanism. Unmodulated texture  also does not cause activation of the filter because the flanking inhibition will be equal to or exceed the excitation. However, increasing the contrast in the center and reduction it on the flanks leads to the activation of the second order mechanism.

Keywords: Second order visual mechanisms, image filtering, texture, spatial modulation, computer simulation

The paper considers the comparison of power consumption of Two’s Complement System and Residue Number System for digital signal processing applications. The comparison of these two implementations allows to conclude that, for these applications, the RNS uses less power than the TCS counterpart. The aim of the present paper is to highlight the reasons of this power consumption reduction.

Keywords: residue number system, digital signal processing

The article is devoted to the formation of scientific and methodological basis of socio -ecological and socio-economic risks that arise in urban areas in the process of realization investment and construction projects for the development of the urban environment. The authors identified the contradictions economic substantiation of development projects of territorial development and socio- environmental factors, the adverse effects of their realization, on the basis of which concluded the need for modernization of the basic principles of risk management for sustainable development of urban territories . The article proposes a set of principles that are required for the formation of an effective system of risk management of investment and construction projects of development of urban territories, which includes five interrelated principles : the principle of the matter of feasibility activity, the principle of optimization of protection, the principle of an integrated estimation of the danger, the principle of ecosystem sustainability, the principle of "the polluter pays". The proposed principles will gain the efficiency of the analysis and selection of projects for realization only able to provide the highest level of security and stability of the socio- economic sector of the city.  

Keywords: principle, the system of governance, risk, investment and construction projects, urban territories, sustainable development, social and environmental security

In the field of the Museum exposition design in Russia and abroad considerable experience has accumulated. However currently we can state the absence of a comprehensive approach to create a coherent exposition system Exhibition – exhibition space. In this scientific article we formulated the concept of Space-graphic element. We have identified the structure, types and variants of use of space-graphic elements, as a special category of exposition tools in exhibition spaces. We have identified the main technical and compositional principles of space-graphic elements design. The use of those principles will allow organizing a coherent unity system Exposition – exhibition space. Concept of space-graphic elements is useful in the development of Museum and exposition activity.

Keywords: Space-graphic element, Museum-exhibition space, exhibition, principles of design, modularity, transformation, interactivity, integrity, structure, consistency

The article is devoted to the problem of shortage of parking spaces in Rostov-on-Don, as well as domestic and foreign experience in the construction of above-ground parking spaces in crowded conditions prevailing urban environment. As a solution considered construction of automatic car parks in the walls of the old damaged buildings, as one of the components of the program of the Administration of Rostov to improve the traffic situation in the city. The article shows few examples of functioning of such parking lots in Moscow, Budapest, Detroit (Ohio, USA). Also the article concludes about the opportunities and challenges of the work on the adaptation of buildings for parking in Rostov-on-Don.

Keywords: automatic parking, restoration, preservation, historic building facade

The article provides an overview of foreign standards : LEED, BREEAM, DGNB, and their comparative analysis . In analyzing the selection criteria of a standard for certification of buildings in Russia , as well as examples of the first objects that are certified according to international standards . American LEED, BREEAM British and German DGNB standards formed the basis for the formation of Russian Green Building standards . In addition, take into account the requirements of Russian standards GOST standards , building codes and other regulations in force in Russia .

Keywords: ecological construction, architecture SCP, certification, standards for green building, green building

The investigated nanocomposites are characterized by more uniform distribution of amorphous and crystal phases. An optimal number of crystallization centers - nanoparticles leads to improve mechanical properties of polyethylenes. Introduction of nanofillers into a polymer matrix leads to the formation of cryptocrystalline supermolecular structure by reducing of the thermodynamic threshold of crystallization.

Keywords: low-pressure polyethylene, magnesium spinel, zeolites, nanofiller, the degree of crystallinity, X-ray diffraction, atomic force microscopy

The article shows how preservation of capital construction, the basic problems of conservation and technical survey of capital construction.

Keywords: Conservation of capital construction, technical survey

One of the priorities of socio-economic development of the municipality is the effective work aimed at improving the quality of life. In this article the problem of placement for agency of health care and education considers at reconstruction of urban areas. There is an investment attractiveness and environmental condition in focus, when choosing a site location of the agency of health care and education  

Keywords: Geoinformational systems, environmental safety, investment attractiveness, reconstruction, electronic map

The article is about generators of random numbers (GPN) constructed on points of an elliptic curve and algorithms of development irreducible polynomials over prime fields. It describes their advantages and main features. The authors analyzes the algorithm of development GPN constructed on points of an elliptic curve with using irreducible polynomials of degree three over finite fields. In this approach, calculations were made in the system of residual classes. According to the results of computer simulation shows the advantages of algorithm in speed and security of a cryptosystem.

Keywords: the generator of pseudo-random numbers, elliptic curve, system of residual classes, cryptographic security, irreducible polynomials

Scientific novelty of the research is the development of methodology of ecological and urban-plnning support of listed building's conservation based on monitoring environmental conditions, monitoring of hazardous geological processes and monitoring the technical condition of listed buildings.

Keywords: Listed buildings, ecological monitoring, geological risk, technical condition, GIS technology