The article describes the existing methods for constructing a model of the internal pore space of a core sample. A processing technique of tomographic analysis data is proposed for the purpose of constructing a multihole channel and pore system that can later serve as a basis for rapid calculations of the porosity and permeability of specimen based on the core sample analysis.

The state evaluation of an oil field is an important production task. The article provides a set of tools and methods that allows obtaining basic characteristics for state analyzing of the oil field within a reasonable period. Suggested tools allow receiving data for analysis at different scales: from individual wells to the field as a whole. This calls for a minimum of source information that is field data.

The article shows that the ordinal number ω is unrepresentable in digitalized form. Therefore digital devices are unable to perform calculations with ω. The representation is implemented in the quaternary numeral system without loss of generality.

The issues of interpretation of pressure transient analysis by the two rates method (Russell) of vertical wells in homogeneous reservoirs with two parallel impermeable boundaries and two intersecting boundaries are considered. Mathematical models for interpreting studies and examples of their use with an error estimate are provided.

The article studies the classification of accurate solutions of the magnetohydrodynamics (MHD) equations corresponding to the layered flow of a viscous incompressible fluid in a magnetic field parallel to the axis of the cylinder. There is a theorem on the equivalence of solution of the heat equation for the fluid velocity vector component and the magnetic field strength and the solution of the MHD equations system for layered fluid flow. The effect of heat generation as a result of internal friction and Joule heating in viscous incompressible fluid flow is investigated.

The paper considers computer simulation of two-dimensional fluid displacement from a porous medium by less viscous liquid. Such problem has a feature - the instability of the displacement front. The numerical calculation of such flow is responsive not only to the initial perturbations of the parameters, but also to the choice of a scheme template. The paper shows that the use of a “cross” type scheme for dynamic analysis of the displacing fluid saturation leads to an unphysical propagation of the instability mainly along the grid coordinate lines. This drawback in two-dimensional calculations can be corrected by using a 9-point template for calculating the convection component. The paper describes in greater detail the implicit computational scheme of the second order accuracy in space using a multidimensional flow limiter. As a test problem, the water-oil displacement fed through a well into a horizontal oil-bearing formation is considered. Whereas the development well may contain or not contain a hydraulic fracturing crack. The paper demonstrates that such crack intensifies the oil extraction process, but on the whole does not lead to an ultimate enhanced oil recovery.

The shift process modeling of polarized electrons and positrons with energy of 120 GeV in a plane channel (110) of the bent silicon crystal was performed using the TROPICS software. It is shown that the best fit of the modeling and experiment results is achieved under the condition that the design constraint on angles of the particles entry into the crystal is twice as large as the experimental one. The results of the computer experiment show a high dependency of the degree of beam depolarization on the charge sign, thus electrons have no maximum in the distribution over angles of the spin rotation, and positrons maximum position corresponds to the theoretical evaluation calculated using the Lyuboshits V. L. formula.

The first and foremost phase in kinetics modeling is the study of separate carbohydrates transmutation phenomenon in detail and structuring of kinetic equations. The article presents the results of kinetics modeling based on the mechanism of chemical reactions of separate carbohydrates hydrocracking considering physical and chemical features of the process flow in the representation of the mixture composition as continuous.

Pseudo-classical Berezin - Marinov model with two charged particles carrying ½ spin is considered. The motion equations in Grassmann as well as in classical (“observable”) variables are obtained. The true integrals of motion are determined and the orbital motion is shown to remain Kepler. However the complete description of the spatial motion includes the Grassmann (nilpotent) component, which leads to the observed effects only after application of the averaging procedure with the use of Berezin - Marinov phase space density. Under special choice of central potentials the system considered gives a pseudo-classical description to the hydrogen atom with the hyperfine interaction considered. The particular case of complete integrability of the electron radial motion is described.

According to the new theory of chaos-self organization the problem of mathematical modeling of complex bio systems is considered as systems of the third type (W. Weaver classification). For such systems the statistical instability is registered, which can be obtained from any parameters of homeostasis x_i . Subsequently the use of the Heisenberg's uncertainty principle analysis for calculation of quasiattractor parameters is advisable. Parameters of quasiattractors differ for different states of homeostasis. However the Shannon entropy parameters demonstrate invariance (through different states of homeostasis). Overall, this fact intensifies the global uncertainty of complex biosystems.

The article describes web-clients of geographic information systems and their user interface development issues based on modern open web technologies. The idea of general-purpose modular web-client of geographic information system with digital map as central component is proposed for solving problems in various subject domains. Relevant issues and technological possibilities, the advantages and disadvantages of methods and technologies for separate components development of such a system are described. The possibilities of using vector and image graphics technologies in web clients, based on modern technologies of SVG and HTML 5 Canvas, are considered. The current state and capabilities of open source client libraries for web mapping, as well as client libraries suitable for developing web client modules are described. The existing open standards for the development of geographic information systems for the web environment are pointed out and the importance of the application of open standards is underlined. The main advantage of this solution is the potential for the transition from traditional desktop clients of general-purpose geographic information systems to web applications and their preferences, accessible to a wide range of specialists and enterprises.

The increase of noise immunity in the processing of electrocardiogram (ECG) signals makes it possible to promote the accuracy of automatic assessments and, ultimately, improves the quality of diagnosis and treatment of cardiovascular diseases. The article is devoted to a new technology for interference suppression in ECG signals. A distinctive feature of proposed technology is noise-immune processing and analysis of ECG signals, an estimation of efficiency and noise immunity, interference monitoring in the registered ECG signal.

The article describes the inferior vena cava three-dimensional model reconstruction problem based on MRT results. A brief overview of modern reconstruction methodsis provided. The reconstruction algorithm is developed and one of the variants of inferior vena cava three-dimensional model reconstruction based on results of a non-contrast magnetic resonance venography is obtained.

The article gives a general description of the specifics of the dispatching process and the provision of system services in the electric power industry. The principles of building control and monitoring systems for the energy system of the Russian Federation and CIS countries are generally considered. The safety aspects of technological processes on the part of data collection and transfer networks are considered. The research background in the field of telemetry verification of electric power industry dispatching centers is described. The organizational component of the process of verifying telemetric information by dispatching centers personnel of the “System Operator of the United Power System” of the Russian Federation is described. The background for creating process automation software of verifying telemetry data is provided. The automation software algorithm for verification of telemetry is developed. The target table of the developing software results is shown. The subject of further research is indicated in the form of a validation criterion of telemetry parameters based on the comparison of data obtained from various sources. The approach to the formation of an empirical criterion for validation of parameters based on values formed using a neural network approach is outlined. The prior approval of the software general idea from the personnel of the Regional Dispatching Management of the power systems of the Khanty-Mansi Autonomous Okrug, the Yamalo-Nenets Autonomous Okrug and the Tyumen Region is obtained.

The handover is the most important procedure which makes the mobile subscribers truly mobile. The customer service handover between base stations for continuous service provision, which success is one of the key performance indicators for any cellular network. In the 4^th generation LTE mobile network there is a possibility of automatic parameters adjustment affecting the handover efficiency which improves its success rate and optimizes the radio subsystem load. In this paper a simulation model of the efficient algorithm of automatic handover optimization by changing its parameters based on base station statistics analysis is developed by the authors.

The article describes the module architecture and implementation for parallel-cooperative tasks in the PiktoMir programming system. This module is adapted for use by preschool children and primary school pupils both individually and during school Olympiads with the help of the MetaMir system. The article considers the method for solving synchronization problems of parallel execution of programs within the PiktoMir system as well.

The aspects of working curriculum development for a subject of higher education are considered. Approaches for assessing the adequacy of the working curriculum on the basis of statistical material gathering and “criterial” calculation are analyzed.

The aspects of teaching preschool children and primary school pupils to programming using the pictogram (PiktoMir) and textual (KuMir) programming systems are considered, and the general methodical problem of transition from the “child” pictogram system to the “adult” textual system is outlined. As a solution, it is proposed to perform this transition within the custom mixed programming system PiktoMir-K, which allows composing both pictogram and text programs in a uniform manner. The article briefly describes the programming language supported by the PictoMir-K system and the interface used to edit programs in the text representation.

One of the most important ways of perceiving information is visual. A schematic depiction of an action or object can be used as the implementation of the action itself or the embodiment of the object. A person can perceive the image data regardless of the native language. Therefore, as part of the programming language, you can use schematic images, as well as icons, learning which you do not even need know how to write or read. Limitedness in the set of syntactic constructions and the size of the body code of such language allows avoiding many difficulties of conventional textual programming languages, such as: syntactically incorrect programs, the need to know a foreign language (mainly English) and a considerable amount of material for study. By means of such restrictions, the entry threshold for studying pictographic language is quite low, and this allows it to be used for teaching preschool children. The article discusses the implementation of such pictographic language that is Pikto. The PiktoMir system is used as part curriculum of algorithmic programming in preschool and elementary classes. The next part of the course for middle and senior schools is the school algorithmic language (the KuMir system). The implementation describes the context-free and irregular grammar for the language, as well as the compilation process and the syntactic parsing of programs compiled on it. The paper also compares Pikto with another pictographic programming language Lightbot.

The article describes the analysis and estimation of asymmetry of internal time and in particular with the use of possibilities of modern functional analysis.

The paper considers the problem of semi-automatic control of virtual robots manipulators in simulator complexes. To solve this problem, the developed technology of virtual control panels is involved. The position of a robot effector is controlled in a semi-automatic mode with the use of the virtual control panel. Caused by the control panel, the change of the end effector position is transmitted to the functional scheme which calculates rotation angles in robot joints. The coordinate descent method intended for solving the inverse kinematics problem, as well as a PD controller providing the required rotation of angles are used for the purpose. The proposed methods of semi-automatic robots control were implemented in the simulator complex designed for virtual robots simulation. An approbation of these methods was carried out using the virtual model of anthropomorphic robot. The approbation showed these methods to be applicable for performing basic technological tasks by a robot.