The article reflects the results of studies on stony communities of Upland Stavropol's steppe landscapes. The floristical and ecological structure of the phytocoenoses on calcareous bedrock are discussed. As a result of the floristic studies in 2015-2016, we found out the modern stony steppes's flora consists of 151 higher plant species. We registered 12 distinctive sites. Also the phytocoenotic table and the characteristics of the communities are represented; their vegetation structure has been described. Species's abundance, distribution of relief elements and communities determined by the expert on the basis of field information. Both the perculiarities of communities and the factors of their spatial differentiation have been characterised. The main factors that influence the development of vegetations in question are abrasion and denudation processes. The petrophytic steppes are formed by limestone in the studied area. The plant communities occur on rocky slopes with poor integrity of bed-rock and development of soil cover, high insolation and low moistening of the ecotope. The petrophytic communities differ in the range of species, including rare and endangered ones such as: Medicago cancellata, Iris pumila, Orchis tridentata, Crocus re-ticulatus, Scabiosa isetensis, Thymus daghestanicus, Euphorbia glareosa, Gypsophila glomerata, Polygala sosnowskyi, Psephellus annae, Linum tauricum, Salvia nutans, Hedysarum bieberstei-nii, Artemisia caucasica, Astragalus calycinus, A. pseudotataricus, A. bungeanus etc., which have significant value for nature protection purposes. Stony steppes's flora are an important object for biological diversity conservation and rare calcareous plants protection in the region. The habitats of rare species have scientific value. In our research we sought to emphasise regional specificity of studied communities, due to the geographical, ecological and historical features of the coenotic.

The paper shows the essential features of the category «natural assets» with both ecological and anthropocentrical points of view, including possibilities of their reflection in the accounting and analytical coordinates system. It reflects the possibilities in different types of natural assets assesments, identifying positive and negative aspects of market, non-market direct and indirect non-market valuations in nature processes. The necessity of using the integrated environmental-economic accounting in nature processes can greatly enhance research in the framework of the concept in sustainable development. It is proposed in article the environmental-economic study in relationship between the natural environment and economy elements using appropriately aggregated and disaggregated indicators.

In the final stage of gas and gas condensate fields development there are complications that worsen the conditions of wells operation and reduce production opportunities. One is the accumulation of fluid in the well bore, which is due to lack of upward gas flow velocity is not brought to the surface. As is known, the bottom water flows into the well not only due of general rise of gas-water interface because of pressure drop in the gas reservoir portion, but local rise near the bottomhole of production well and formation of so-called water-cone. Features of technological operation modes of wells with water seepage require clarification calculation pressure drop all the way of gas motion: from the supply circuit to the bottomhole formation zone, then from the outer limit of the bottomhole formation zone to the outline of well, and then the motion in the amount of partially or completely illed with water bottom and inally, up from the shoe tubing to the mouth. To understand the processes of liquid recovery from wells, the ability to design the installation and material selection it is necessary to know the laws and parameters of movement of gas-liquid mixtures in the pipes.

The article reviews the method of quality control of the underground gas storage (UGS) operating - a method for examination of dynamic processes in periods of gas injection and extraction in real time. Techniques of field geophysics are perfecting with time and progressing through the usage of digital technologies and optical fiber cable. The technology called "Intelligent well" - is a set of digital borehole equipment, including a set of primary digital converters, that are located in the wellbore, and ground telemetry for continuous automatic collecting of information about the well. The paper presents the conditions of usage of the optical fiber (OF), its main advantages. The article considers the convenience of usage of optical fiber for solving the problems of UGS operational monitoring in intelligent wells. The item shows the design scheme of the optical iber cable, the composition of the entire test and measurement system and the requirements it meets.

Sometimes mistakenly assumed that gravity waves only have a frequency equal to Brunt - Vaisala. However, there is a wide range of wave frequencies are less than this value. The frequency of oscillation vertically displaced from the equilibrium position of the air particles in a stably stratified atmosphere is equal to the frequency of Brunt - Vaisala. This resonance (on site) frequency vibrations in the air, and even if it were possible to imagine some process, which will cause vertical vibration with a frequency of greater than Brent frequency - Vaisala, this vibration will not be supported by the buoyancy of the atmosphere, and the vibration amplitude would decrease rapidly with the distance from the point of compulsion. Thus, the maximum frequency of the gravitational wave frequency equal to Brent - Vaisala, as there is a wide spectrum of waves whose frequencies are less than this value.

The process of forming the gasevaporated moisture is already being itself the unique geochemical phenomenon. This has visually been proved by the presence of aqueous vapour in the gas and gas-condensate deposits of the zones of the earth core in which owing to high fluid pressure the water can be present only in a liquid phase within the undercritical temperatures for fresh water (373 °C) and its brines (400-600 °C). The appearance in this zone, as a rule, always watersaturated, of the free gas accumulation, from nucleus bubbles to the whole deposits, leads to the formation of the double system as vapourgas mixtures. In the mentioned mixtures the aqueous vapor is always present of gasevaporated moisture (aqueous vapour formed as a result of the gas free accumulation which evaporated the liquid water). This had been proved by the nomerous experiments in the high pressure installations and by the development of numerous domestic and foreign gas and gas-condensate deposits and also the caps of oilgas deposits. The moisture content of the vapourgas mixtures depends on the gas ,moistures (CH4, CO2, H2S, N2 and so on), thermobaric parameters of the system (that is, pressure and temperature in the hydrocarbon deposits), mineralization of the water conjugated with gas) the residual water in the deposit. Gasevaporated moisture and its derivate as the condensational water takes part in the manifestation of a great number of geologic and geochemical processes both in the hydrocarbon deposits and in the earth core. The important peculiarity of the e gasevaporated moisture is mass transfer of chemical elements including rare earths. The results of the given work have been the laborious investigations on the mentioned problem for many years.

Scarcity of territorial resources in the Republic of Armenia forces more efficient and targeted usage of land. This is even more important taking into consideration complicated political and geographic position of the country. For the reason the prevailing part of the country and most of the settlements are located on altitudes higher than 1500 over sea level, relatively monotonic and stable resettlement and rational usage of natural resources are an urging problem. The article is stating the point of view that effectiveness of use of land and territory resources in mountainous countries at all and particularly in Armenia directly correlates with the density and level of population, statement is based on analysis and summarizing of actual and statistical material. Development of rural areas and resettlement, agglomeration of medium and small villages, preserving existing network of settlements as well as reconstruction and repopulation of abandoned ones is one of the most important objectives of social-economic development of country.

In work possibility of influence of the dangerous hydrometeorological phenomena on character and scales of distribution of radioactive pollution of environment within radiation polluted areas is shown. The analysis of existential distribution the ushcherboopasnykh of the hydrometeorological phenomena in radiation polluted territories of the East Ural region of Russia (The Chelyabinsk, Kurgan and Sverdlovsk regions) is carried out. The most part, the occurred for 1991-2013, such phenomena has been connected with strong winds, hurricanes and tornadoes, and also with heavy rains and heavy rains that, in our opinion, substantially promoted distribution of radioactive materials across the territory of the region. Most often these phenomena happened on the territory of Chelyabinsk region which is the most radiation polluted. The quantitative characteristic of the happened emergency situations caused by the dangerous hydrometeorological phenomena which generally arose during the spring and summer period is given.

The studyreviewsthe basic approaches for defining theterm of « migrant workers». The research has revealed, based on sociological surveys and migrant workers interview, the main adaptationand integration problems of migrant workers in a new region and gives an average migrant worker's profile (in the case of Stavropol region). The authors perform an analysis of foreign labor migration regional aspects. The results of the study present the general recommendations for migration worker's policy adjustment.

This item is a theoretical & methodological attempt of comprehending the process of foreign migrants' adjustment and integration in Russia. The theoretical statements put forth herein rely on analysis of the migration studies conducted in Russia in the recent years as well as on the authors' research experience gained through investigating adjustment and integration of various migrant groups. The article also dwells on the meaning and the correlation between terms like socio-economic adjustment and ethnic & cultural integration, with a special focus on the fundamental differences between the two. The idea put forward here implies that there is a need for taking into account geographic aspects of migrant adjustment and integration, and certain methodological approaches are proposed that might be used to carry out such geographic analysis. Three major models are proposed for adjustment of foreign migrants - inert, active, and deviant, while the prevalence of these depends ethnic & demographic and socio-cultural features pertaining to both the migrant and the hosting communities, the level of their ethnic complementary capacity, the progress in the legal and institutional regional environment, etc. There is also an indication of the need for developing the concept of the regional adjustment & integration policy as a mandatory part of the migration policy, whereas the informational basis of that could employ poly-scale geo-informational monitoring of migration that would allow following the current status and the dynamics of the adjustment & integration processes at various local levels - from communities to the entire country - given the migration policy currently pursued by the Russian Federation.

The Central Caucasus is one of the regions which located in area of grate hail dangerous. Every year we lose from 5 to 7 % of yield after hailstorm. Sometimes the level of damage reaches 18 %. For prevention of damage was started special manufacturing activity in 1967. For it used competition method and acceleration of formation of rainfall. Despite the reached progress in borders of this region was found out that annually the level of deterioration of yield after hailstorms is rising. The reason is: existing methods of impact on hail processes are not able to interrupt the catastrophic hail near protected area. The method for interrupting hail from cloud and clouds systems, based on the preliminary impact hail clouds and clouds systems offering. This method has been pilot-tested in the Stavropol uniformed services on active impact on meteorological and other geophysical processes in 2004-2008. The average efficiency of the proposed method was 96,7 % (after testing on an independent physical material). This method can be recommended for anti-hail protection services, planning and working on artificial rain enhancement.

The work is devoted to consideration the blind electronic signature method based on algorithm, described in DSTU ISO/IEC 14888-3:2014 (EC DSA). The blind electronic signatures protocol mathematical model based on a standard electronic signature algorithm EC DSA is considered. It is tested the blind signature protocol security based on this algorithm by the anonymity criterion. It is proved, that the considered protocol is protected by the anonymity criterion, that is, it is impossible to identify the author of the signed document. It is analyzed the electronic signature complexity based on the quantity and complexity of operations, which are needed in implementing an electronic signature algorithm. The standard electronic signature according to the DSTU ISO/IEC 14888-3:2014 (EC DSA) algorithm execution complexity and blind signature complexity based on it are compared. The results of comparative analysis are provided and make the appropriate conclusions based on it.

The proposed by author mathematical model of the self-organization of the labor market for a few of industries enable us to analyze the effectiveness of the adoption of certain management decisions and predict the probability of developments in the labor market on the basis of determination of its stable state. Phenomenological parameters included in this model open the possibility of studying the influence on macroeconomic processes of a number of subjective factors. The developed software product «EMPOT» is the realization of a mathematical model of self-organization of the labor market.

In the residue number system (RNS), the operations of addition, subtraction, and multiplication are executed in parallel for different digits (residues) of the modular numbers. Therefore, RNS is used for reaching the maximum performance in many high-speed computer arithmetic applications. However, RNS has disadvantages, especially in issues like estimating the magnitudes of modular numbers. Traditional methods for estimating the magnitudes in RNS that are based on the Chinese remainder theorem, or on the Mixed-Radix Conversion, result in rather slow and inefficient implementation. For solving this problem, the interval floating-point characteristic (IFC) method was proposed. This paper describes direct and stepwise algorithms for IFC computation in fixed-precision floating-point arithmetic. Time complexity (in terms of the elementary arithmetic operations) and accuracy are assessed for each algorithm.

Scientific and technical and social and economic progress changed life of millions of people, it has given boundless opportunities for receiving and information exchange. However, in this regard the number of technical means of processing and information transfer increases from year to year. This problem results in need of development of technologies for rational using of radio-frequency resource. Today pseudorandom coding is almost only way for support of required level of noise protection of confidential information. Advantages of use of pseudorandom codes which will allow to lower channel costs of transmission, but will allow to increase speed significantly are given. But today this technology isn't applied because decoding of such codes is connected to use of the rule of maximum likelihood. For blocks 20-30 channel characters is computationally infeasible. The method of decoding of pseudorandom codes on the basis of application of a method of branches and boundaries is offered.

The investigation of the phenomenon of interference of parallel phase-frequency-modulated types of signals Lf - 2φ in order to optimize the calculation of the energy spectrum of these signals. There were obtained functions of the energy spectra for this type of signal. In the investigation of interference phenomena for parallel phase-frequency-modulated various types of signals, was set the procedure for determining the complex spectrum of parallel phasefrequency-modulated signals with double phase-shift manipulation with the release of the order of interference components

The wireless communication is very widely used information transmission systems. Wireless networks differ from cable networks on physical and partially on data link layer OSI in use of different methods of modulation. The library of reference models of signals of the physical layer intended for creation of mathematical models of telecommunication protocols in wireless systems is provided. Creation of such models is caused by need of a research of methods of digital signal processing. The principal feature of these models consists in use of an algebraic method of processing of difficult signal constructions which allows to avoid use of a method of fast Fourier transform. The library contains the generalized models of signals m-PSK with absolute and relative phase-shift keying and the signal OFDM model. The possibility of representation of a signal in the form of the discrete samples, and also record and reading from the file is realized.

We consider an autonomous group of unmanned aerial vehicles, as well as options for the structure of the possible organization of their interaction (centralized and decentralized). When performing special tasks autonomous group drones form a spatially distributed and scalable data processing system with unpredictable and dynamically changeable structure in which the execution of the main "target" function to process information depends on the communication environment. The failure of the radio channel is subject to destructive influences, in particular, unintentional and intentional interference of organized purpose is a violation of the qualitative characteristics of information that determine its suitability in dealing with the target group functions autonomous unmanned aerial vehicles (UAVs). A key requirement to ensure the qualitative characteristics of the requirements for information is to ensure its integrity at all stages of the life cycle. Classical techniques used to ensure the integrity, and efficiently provide control data integrity at the micro level within a UAV, but at the same time do not solve this problem for the whole group. It is proposed for such conditions of functioning of the task of ensuring and monitoring the integrity of information as follows: a set of storage devices, placed on board a different, but united by a common purpose of the operation of UAVs, considered as a single storage system for the introduction of redundancy in information stored. For redundant data storage on board the UAV uses redundant modular polynomial codes. The proposed method provides the ability to restore the integrity of the data subjected to the destructive influence, and thus the physical loss of a predetermined maximum number of UAV does not lead to a partial or complete loss of it.

In article application of objective-time counts for correct display of process of finishing of a shot is considered at various quantity of repetitions and various quantity of packages (shots) in the multipackage message in logic connections "point-point" the information exchange in which is carried out under the report of channel level of type X.25. Rules are developed for the automated synthesis of a matrix of transitive probabilities and a matrix of steps of the transitions necessary for research of efficiency (under is likelihood-time characteristics) deliveries of multi-package messages in systems of data transmission with various parametres. Developed scientific and methodological apparatus is the basis for further study of the dependence of the probability of prompt delivery of multipackage messages in data transmission systems with different parameters: the number of sources, receipts, recipient, and also at different length of the package, the receipt, the transfer rate of information.

In this work we considered two types of adders for addition of two binary numbers implementation: carry propagate adders and parallel-prefix adders. In this article simulation on FPGA for both architectures and their comparative analysis is made. Simulation results for 4, 8, 16 and 32-bits circuits showed that parallel-prefix architecture using gives the gain in speed up to 41% compared to sequential architecture through increasing the hardware costs up to 71%. Parallel-prefix adders should use the for those applications, in which the maximization of speed is the main objective. On the other hand, carry propagate adder is better for hardware costs and power consumption decrease.

Analysis of the parameters of electroencephalogram in adolescents of the city of Lermontov, Stavropol territory found that slow "fundamental" theta rhythm dominating in adolescents with mental retardation and is caused by the activation of cortical projections to the thalamus, leads to a decrease in functional activity of neurons in the brain, emotional-motivational tension and negative emotions. The high level of activity of neurons of the anterior and central parts of the brain in high frequency rhythm beta-2 band, which correlates with the level of activation by dopamine and serotonin, characterizes the delay of psychomotor development for both boys and girls with mental retardation. Described a peculiar dermatoglyphics constitution adolescents, phenotypically manifests itself in delayed mental development of maximum representation of radial loops among boys, increase in ridge accounts and the Delta index in girls. Neurophysiological adolescents with mental retardation are characterized by a uniform decrease in functional activity of neurons and emotional-motivational tension, dermatoglyphics boys characterizes the presence of rarely occurring patterns: radial loop, girls - increase in ridge density of the fingers of the right and left hands.