The research of the proluvial and eluvial-diluvial loess-like loams with wide distribution in the Kuban plain was conducted. In this work the properties of the collapsible loess soils, which developed the processes that lead deformation of the engineering structures, violation of planning fields, to their water logging, etc, was considered. The analysis of subsidence processes, their origins and causes activation is provided. The link between subsidence and suffusion processes was conditioned. It is proved that the subsidence processes significantly affect the safety and population’s comfort living. The issues about the regime observations of these processes are raised.

Keywords: Drawdown, suffusion, soil, loess material, geodynamics, geo-ecology.

The article considers the questions of interrelation between preparatory and main works in forest harvesting. It also examines a method of monitoring of their effectiveness with the use of geographic information systems considering the evaluation of forest offence during these works. 

Keywords: organization of forest management, forest offence, geographic information system, preparatory works, forest logging

  Now nanotechnologies are one of perspective methods of diagnostics in medical practice. Nanoparticles can be used as contrast agents for medical ultrasonic introscopy due to their adhesion to tumor cells and bacteria. The mathematical model of the laser excitation of acoustic signals in a liquid medium with the presence of the nanotubes was developed and numerically studied. Increasing of the level of photo acoustic signal was shown.

Keywords: Opt acoustic effect, nanotubes, and model

The paper shows the feasibility of using a current amplifier in the filters RF and microwave ranges. By analyzing the basic structure of the second-order level sufficient conditions for the efficient use of active elements. The examples of methodological nature and formulated conclusions of practical importance.

Keywords: RF filter, microwave filter, parametric sensitivity, current amplifiers, functional modeline setting

  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

The results of operation of electric locomotives «O'ZBEKISTON». Describes the general characteristics of the railways in Uzbekistan, the basic characteristics of electric series «O'ZBEKISTON». It also presents calculations of generalized reliability indicators and the main directions of development of repair systems.

Keywords: Railways of Uzbekistan, electric locomotives series «UZBEKISTAN», reliability

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 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

The values  the frequencies of the stretching vibrations of anions  SCN-,  NO2-, NO3-, CℓO4- in molten salts of alkali metals and their point group symmetry. There is a correlation with an increase in the frequency of symmetry  

Keywords: Raman Spectra; anions; molten solts; group symmetry.

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

  To estimate the effectiveness of forest machines developed technological possibility coefficient. Coefficients reflect the ability to provide a given performance of transport vehicles in the logging, the decline in the quality of the skid road surface. Method allows determining the amount of logging residues, necessary for the skid road construction. At calculating the available volume accounted for logging residues. Resources of logging residues are calculated depending on the type of timber and the length of skid road. The method allows selecting the optimum system of machines to work in these natural production conditions or schedule performance loss due to reduced carrying capacity of skid road.

Keywords: Cross country, technological passableness, forest machines, bearing capacity of soils, skid road, wood types, logging residues

 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 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.

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.

  The paper presents the developed methodological aspects of management of sales of company performance in the context of the proposed type of classification of consumer goods «Innovative product», «New product», «standard product», «Mass product» in the conditions of the competitive environment on the basis of regulation of the relationship between the number of (physical volume) of the goods sold and value added (trade imposing on them) for subsequent determination required to ensure the effectiveness of the sales volumes. 

Keywords: Types of classification of consumer goods, «Innovative product», «New product», «standard product», the methodological approach to the management of sales, the Mechanism of management of sales