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  • Comparison resolution ability Prony and Bartlett methods when working on background noise of the sea

    Results of comparing the beamwidth and the concentration factor of receiving antenna wich were calculated using the metods of Bartlett and Prony when working on the background noise of the sea are considered. It was shown that efficiency parameter estimation signal sources using Prony methods is higher than when using the method of Bartlett.

    Keywords: Prony algorithm, vector-scalar array,dynamc sea noise, the covariance, the flow of power

  • Model the behavior of Autonomous script in the tasks of management of distributed information resources

    The article has received the further development of application technologies autonomous scripts for management of information resources of computer systems. Formalized behaviour of deterministic and stochastic autonomous scripts with the use of finite automata that enables you to develop models and technology for solving a wide class of problems of information resources management.

    Keywords: autonomous scripts, theory of finite automata, the concept of frames slot, management of distributed information resources

  • Features of development of light self-compacting concrete on porous fillers

    Possibility of receiving lungs self compacting concrete is considered. The technique of a choice of components of a raw mix is offered and are brought physics - mechanical characteristics of a ready construction materia  

    Keywords: Self-compacting concrete, the supersoftener, knitting, filler.

  • Mathematical modeling of heat transfer processes in energy-saving solar plants

    A mathematical model of heat transfer processes, the discrete model is based on the finite difference method, and the results of calculations of the temperature distribution also will be developed. In addition the program was created which allows to calculate the distribution of temperature over its entire length for given values ​​of insolation, ambient air temperature and air velocity inside the collector  

    Keywords: mathematical modeling, finite difference method, heat transfer processes, solar collector

  • The social analyze of the conceptual models of social health.

    The sociological study of conceptual models of social health serves an important aspect of studying the potential of man and  the system of the formation, preservation and tracking health in the modern society. An author analyses the models of the social health in sociological knowledge. Concluded that further research and application of study that phenomenon.    

    Keywords: Sociological analyze, social health, biosocial model, environmental model, value-social model, the functional model

  • Hybrid algorithm of classification of text documents on the basis of the analysis of internal connectivity of the text

    Results of research in the field of methods of classification of badly structured collections of heterogeneous documents are provided. The method is offered and the hybrid algorithm of classification of text documents is developed. The theoretical assessment of complexity of the offered method is executed and the pilot study is made. In article it is considered: mathematical model of the offered hybrid method, its algorithm, theoretical assessment of computing complexity and the experimental comparing with other methods of classification of documents.

    Keywords: fuzzy logic, bayesian classification, classification of text documents.

  • Adaptive autonomous scripts for management of information resources of the enterprise

    We consider the problem of the use of adaptive autonomous scripts in the decision of problems of management of information resources of computer systems. Developed a conceptual model of adaptive autonomous script with use of frames and apparatus of finite automata, which expands the possibilities of automation of complex problems of information resources management  

    Keywords: adaptive autonomous scripts, theory of finite automata, frame, slot, management of distributed information resources.

  • Being self-compacting concrete of the lowered density with application of a volcanic tufa

    Advantages of being self-сщьзсештп concrete of the lowered density (LSUB) before heavy and light concrete are shined, characteristics of components ЛСУБа and influence of their quantitative contents are provided in a mix on properties of the fresh and hardened concrete. The optimum mode of warmly moist processing is offered.

    Keywords: Self-compacting concrete, the supersoftener, knitting, filler, a volcanic tufa.

  • Solution of one-criterion optimization problem of crew actions scheduling on Russian segment of International space station

    The flight scheduling process is briefly described in the article. It is one of the most important stages of space flight control task solution. Three stages of flight scheduling are given: strategic, tactical and executive. The result of each scheduling phase is presented by special plan type: on-orbit operation summary, weekly lookahead plan, short-term plan. The difference of these plan types is in planning interval and data processing depth. The mathematical modeling of all required data and restrictions is made. A crew downtime minimization is the selected optimization criterion. Modified genetic algorithm for decision of assigned task is designed. The future tasks regarding crew activities scheduling process optimization are defined  

    Keywords: scheduling, flight operation, crew activities, optimization, mathematical modeling, genetic algorithm

  • Issues of case-based reasoning, detalization, integration and similarity assessment of cases

    Case is an event that took place in the past and can be an example for similar steps in present. Case-based reasoning (CBR) is a methodology of finding a decision based on previous experience. The main difficulties in CBR are recognition of present situation of decision-making and finding similar case in the past. Making a decision in the field of purchasing drugs is a quite difficult and many-valued task with a plenty of various parameters, which however might be solved with the help of CBR. CBR is an important and perspective area of artificial intelligence (AI) decision support systems. Constantly growing research amount has already led to breakthroughs in theoretical part of AI and in AI-based applications. The general case model and formula for determining cases similarity is suggested in this work. Application of the formula will help determine similarity of cases and make the better decision.

    Keywords: case, case-based reasoning, case description, decision support system, case-based decision making

  • The load distribution in the adaptive friction clutches of the second generation (Part 1)

    With the increase in the coefficient of friction is a growth of the torque transmitted by the lead pair of friction of the main friction, reducing torque is transmitted by the slave pairs of friction friction core group and a couple of extra friction of the friction. Load transfer in the adaptive friction clutches reduces spacer force and accelerate the growth of the torque transmitted by the friction pair of the main driving frictional group.

    Keywords: the coefficient gain, a separate positive connection, the coefficient of friction, clutch, friction pair

  • The load distribution in the adaptive friction clutches of the second generation (Part 2)

    The coefficient of friction, whereby the total nominal load adaptive clutch transmitted only the leading pair of friction friction basic group is less than the maximum value, which may take the coefficient of friction in actual operation of the coupling. Appearance and an increase in the strength of the spacer when the external load and increasing at an elevated value of the friction coefficient begins at a certain minimum value of the external load, which depends on the total number of pairs of friction of the friction core and the gain. The dependences of the distributions of the torque between the lead pair of friction friction main group and driven friction pairs of basic friction and friction pair of extra friction.  

    Keywords: the coefficient gain, a separate positive connection, the coefficient of friction, clutch, friction pair

  • Algorithm for solving the problem of optimal allocation of energy resources of the region

    To solve the problem of choosing an algorithm of optimal allocation of resources to development of the energy producing industry, initially held the formalization of this task and the required payment ratio. The relationship led to the conclusion of one of the most effective methods for finding optimal solutions-dynamic programming method  

    Keywords: algorithm, еnergootrasl, distribution, development, function, script charts, dynamic programming

  • Simulation of the design activity diversification of innovative enterprise

    The article discusses modernized algorithm of timer for the user library for PLC, through which may increase the efficiency of the use of funds for programming PLC, as well as reducing the time needed to create the program. 

    Keywords: algorithm of timer, user library, modernization of timer, universal timer, Codesys,CFC

  • The justification for the use of geostatistical interpolation method of input data for the mass of cadastral valuation of land settlements on the example of Vsevolozhsk

    The problem of the current method of mass cadastral valuation of land settlements with the type of permitted use - for individual housing. This problem is that the regression analysis used in the present method does not include the cost depending land on their mutual position. A study of the source data proved that the market value of land depends on the degree of proximity of land from each other. On this basis, the work was proposed to use a new, more correct cadastral valuation method - the method of geostatistical interpolation (kriging).

    Keywords: cadastral value, geostatistics, regression, interpolation, kriging