It is considered the dependence of the operation mode of floor radiant panel heating systems depending on the design parameters for the internal air  

Keywords: panel-radiant heating, heat-insulated floor, parameters of the internal air

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

Considered original interpolation method of the working tool path using confluent two-unit manipulator. This method is based on the separation of the links on the master and slave and the use of polar coordinates to determine the incremental rotation of angle units. It is adapted for use calculating hardware with floating point.

Keywords: two-tier mechanism, circular interpolation, the kinematic model, floating point operations, the static accuracy of interpolation

Reviewed the status of groundwater in such industrial cities of the Rostov region, as Belaya Kalitva, Donetsk, Kamensk-Shakhtinskiy. Identified the main sources of their pollution and priority pollutants. The causes of expansion spots dirty waters in the areas of industrial cities, education depression funnels. The conclusion about influence of a large number of technogenic factors on the change of the status of groundwater  

Keywords: Anthropogenous influence, industrial production, ecological situation, environment, an ecosystem, the industry, transport, pollution, water objects.

  This paper presents a method of constructing microwave selective amplifiers, which allows control Q and voltage gain at the frequency of quasi-resonance. The presented architecture selective amplifiers for SiGe process technology have low power consumption.

Keywords: RC-filter, good quality, controlled selective amplifier, gain, frequency quasi-resonance

This paper describes application of different criteria for estimating parameters of traffic simulation. For comparison following methods were used: statistical methods for comparison of a flow and speed in control points of a network - analysis of variance (ANOVA), Theil's U-statistics; relationships between flow, density and speed; relationships between trip time and stop time with using two-fluid models of traffic flow. For this aim we also used concept of meta-model. In order to implement this method we need on the first step to create separately relationship between traffic flow parameters for observation and simulation data and then to estimate combined model. The paper included results of calculation  

Keywords: validation, traffic, simulation, flow, speed

  The article describes a new technology reclamation processing sloping land without recourse reservoir using subs oiler chisel type. Shows a model of stability of slopes wetland soils processed by the proposed method. 

Keywords: stability, subsurface wall area loosening, sloping lands, accumulation of moisture-treated layer, wetland soils, deep loosening

"The concept of the nested metagraph as the model of a complex object with different levels of generalization is introduced. It is shown that the nested metagraphs reflect the general system concept for description of complex objects with synergistic effect. This approach enables moving from the set-theoretic description of complex objects to their algebraic-theoretic description, thus increasing the model adequacy to real-life objects. The application of the nested metagraphs, in particular to business-intelligence and semantic search is considered. "

Keywords: nested metagraphs, complex object, hyperedge as the essence, business analysis, a semantic network

  In article the model of a complex assessment of investment appeal of subjects of business activity taking into account definition of the directions of development of stock market as instrument of attraction of investments into the production sphere that served further development of provisions of the theory of strategic management by business activity therefore it is defined is proved that further development of production is caused by activization of business activity and is a basis of ensuring its efficiency.

Keywords: business activity, investment appeal, investments, production sphere, strategic management, efficiency

In the implementation of dynamic re-routing of traffic it is important to notice that the threshold depends on the network layout and type of the roads. Full paper includes appropriate relationships, figures and analysis of simulation results to define the re-routing period of dynamic traffic rerouti  

Keywords: re-routing, cycle, dynamic traffic assignment, level of services

 Quality of services of public passenger transport depends on many indexes. Reliability and regularity is important indexes of quality of public passenger transport. The example calculation of reliability is considered. Conclusions on reliability and regularity of routes are done  

Keywords: quality, public passenger transport, regularity, reliability

The main models of DNA computing are self-assembly of DNA and RDNA. Disadvantages of these models are low speed perform arithmetic operations, the high probability of errors of computing, and perform the calculation with only fixed-point numbers. In article is represented method of encoding numbers by DNA strands. Numbers can be encoded by any base initially. This method does not require to translate the number into a binary number system. Each number is encoded by digit with the DNA. As compared with known methods, the proposed method uses a shorter length of DNA strands. The proposed method can increase speed encoding of numbers, improve the accuracy of the calculations and to reduce errors in the formation of the encoded data. In article is represented also the operations to perform arithmetic operations. The use of the proposed method of encoding numbers and proposed operations over DNA allows to increase speed of computation, and perform calculations not only with fixed-point numbers and floating-point numbers.

Keywords: encoding of numbers, DNA strands, operations with the DNA-chain, DNA computing

The main characteristics of the different types of landfills for disposal of solid waste consumption: buried landfills poluzaglublenny landfills and surface polygon. For each landfills for disposal of solid waste consumption the features of operation  

Keywords: Solid waste consumption, buried landfills, operation, poluzaglublenny landfills, surface polygons.

Proposed an approach to calculate the inductance per unit length of twisted pair at microwave frequencies. Analytical relations to calculate the inductance per unit length of double line and twisted pair at microwave frequencies. An efficient algorithm for the approximate calculation of the inductance per unit length of twisted pair at any veins angle.

Keywords: inductance per unit length, microwave frequency, twisted pair, double line, veins angle

Methodical principles for selection of sites for the construction of solid waste landfills consumption suggested by other authors, based on which proposed a new method of selection of the site for the construction of a solid waste landfill consumption, examines its main stages and highlights the main advantages  

Keywords: Solid waste consumption, operation, methods of site selection for the disposal of solid waste consumption.