bluuebunny/crossref_metadata_2025_split huggingface dataset:
Technique of visualization of dynamic characteristics of electromagnetic strike machines
Authors: Kargin V A , Volgin A V , Moiseev A P , Lagina L A , Churlyaeva K D 
Published: November 2019

Abstract
At present, the use of pulsed linear electromagnetic engines in the drive of strike machines for immersing rod elements in soil, percussive drilling of shallow wells and dynamic sounding of soils is recognized to be quite effective. The transient time in linear electromagnetic engines of such devices is not more than 0.25 s, which makes it difficult to obtain the most complete information about their characteristics. The solution to this problem with the help of traditional technical means is found difficult. Experimental studies of the working processes of pulsed linear electromagnetic engines of strike machines were carried out. The study of work patterns, the development of recommendations for the rational selection of individual design and operating parameters allow for maximum mechanical energy at the engine output with the greatest possible efficiency. The technique of visualization of the dynamic characteristics of strike machines with pulsed linear electromagnetic engines using a multifunctional analog-to-digital converter board is considered.
Linear stepping electromagnetic engine for driving conveyors
Authors: Kargin V A , Volgin A V , Moiseev A P , Maradudin A M , Leontiev A A , Peretyatko A V 
Published: November 2019

Abstract
The rise and sustainable development of mining enterprises are inextricably linked with the creation of competitive technology for advanced technologies in construction, mining, engineering and geological surveys. In the improvement of characteristic technologies, an important role is played by power discrete drives with linear electromagnetic engines, which make it possible to abandon motion converters and especially successfully compete with traditional electric engines in machines and installations where discrete translational motion of the working body is necessary. The kinematic separation of the armature and the output shaft and the use of an axial channel in a linear electromagnetic engine made it possible to create electromagnetic machines with new properties in which the mechanical power is derived using a toothed bar of any desired length. In the work, the force analysis of the interaction of the working body with the locking mechanism in a stepper linear electromagnetic drive engine of the conveyors is carried out. The degree of influence of the angle of inclination of the locking elements on the amount of effort required to drive the working body is revealed.
Integrated information and analytical systems for monitoring technical condition of electromechanical equipment
Authors: Malov D A 
Published: November 2019

Abstract
The presented article shows one of the approaches to the development of the module for monitoring a technical state, diagnostics and an estimation of the residual life of electromechanical equipment. The main tasks and directions of the development of a modern industrial enterprise are integrated information and analytical systems. The developed module is necessary for the formation of maintenance plans for process equipment based on its actual state. The analytical task of the proposed module is the prediction of equipment defects with different delta of a time delay. The block diagram of the equipment diagnostics module allows dynamically changing the depth of the forecast.
Studies of voltage stabilization and balancing systems in energy storage modules based on supercapacitors
Authors: Abdallah W J 
Published: November 2019

Abstract
Supercapacitors come under different names and scientific nominations as Ultracapacitors (UCs) or double layer capacitors, or electrochemical capacitors, they are considered as promising technological devices used for storing energy in the field of energy storage systems. They are able to deliver high power and enable high load currents in addition their ability to bridge power gaps. As we will notice, they have fast yet complicated charging/discharging mechanism interpretations. This paper will provide an overview on different equivalent circuits of a supercapacitor, and will highlight the concept of unbalanced series of connected ultracapacitors and different options in rectifying such unbalance. The balancing of supercapacitors connected in series can come in different modes passive or active and maybe hybrid. A comparison between the different modes will be executed using MATLAB/Simulink and results will be shown based on the economical and performance perspectives.
Experimental studies in heating oil-saturated rock with high-frequency electromagnetic field
Authors: Kovaleva L A , Minnigalimov R Z , Nafikova R A , Zinnatullin R R , Sultanguzhin R F 
Published: November 2019

Abstract
The paper describes a test bench for studying the interaction between electromagnetic fields and oil-saturated porous mediums. Dielectric parameters of the targets have been determined. Results of experimental studies in heating oil-saturated rock with high-frequency electromagnetic field are given.
Applying barycentric coordinates on balanced supply voltages triangle to zero sequence voltage estimate without phase measurements
Authors: Lopatkin N N 
Published: November 2019

Abstract
The paper offers a new vector-coordinate description for a complex-plane position of a neutral bias voltage phasor relevant to a three-phase circuit with an unbalanced load. It is assumed that no negative sequence voltage component is present, i.e. the supply three-phase system voltages are symmetric and sinusoidal. The so called “new coordinates” and being defined with the help of them barycentric coordinates on a balanced supply line-to-line voltages triangle have been introduced. The proposed approach made it possible to obtain simple enough analytical expressions. A RMS value of the positive sequence component and further a static phasor of the zero sequence voltage unbalance factor are described. They are based on three line-to-neutral load voltages voltmeter RMS readings only. Accordingly, these calculations need no phase measurements. The presented neutral bias voltage coordinates calculations might be useful in a three-phase load circuit monitoring, diagnostics (fault detection), protection and voltages unbalance compensation.
Algorithm of electrokinetic dehydration and final drying of valuable tree
Authors: Porsev E G , Malozyomov B V , Zhigalov K Yu 
Published: November 2019

Abstract
The paper considers the issues of wood drying followed by huge energy consumption rates. It analyzes current traditional technologies of wood drying in order to identify the main disadvantages. The key idea of the study is the phenomenon of electric osmosis that makes it possible to extract liquid from the massif of wood. The technology shall significantly increase energy efficiency of wood drying due to energy saving thus reducing the costs of wood drying.
Studying optoelectronic method of determining one substance in the other in petroleum production
Authors: Rakhimov N R , Shakurova Al F , Zakirova Kh D 
Published: November 2019

Abstract
This paper introduces optoelectronic method of determining one substance in the other in petroleum production with a fiber-optic sensor (FOS). This method application is important for solving problems of contemporary oil, gas and petroleum production.
Quantitative determination of fault tolerance of memristor-based artificial neural networks
Authors: Danilin S N , Shchanikov S A , Bordanov I A , Zuev A D 
Published: November 2019

Abstract
The authors have reviewed interpretations of the terms “dependability” and “fault-tolerance” in Russian and interstate standards. A new quantitative criterion of fault-tolerance of the memristors-based artificial neural networks is proposed and substantiated. The authors have also proposed and provided rationalization for a revised definition of fault-tolerance as a property of the memristors-based artificial neural networks, which most fully conforms to the new version of its quantitative criterion. An example of the application practice for the fault-tolerance criterion during the design stage of an artificial neural network of a test degree of complexity is given.
Application of vibration diagnostics methods and programs to assess the remaining lifetime of oil equipment
Authors: Zainagalina L Z 
Published: November 2019

Abstract
The article deals with the method of evaluating oil equipment remaining lifetime by vibration diagnostics. The advantages of machine maintenance according to its technical condition, compared with planned-preventive repairs, are given. The technical conditions of the wellhead stuffing box of a beam pumping unit and a centrifugal pump machine were studied by Corsair vibration analyzer and Aurora software product, providing the evaluation of the current machine condition for planning a repair period. While analyzing the results of the equipment vibration diagnostics, the conclusions on faults were made and the dates of predictive maintenance were determined: the date for the next measurement (condition control) and the date for repair. The vibration diagnostics significance was confirmed in experiments as the most universal parameter which provides accurate information on equipment condition, making it possible to evaluate equipment technical condition in operation and predict its reliability.
Simulation of parts manufacturing in the enterprise mechanical-repair department
Authors: Ivanov V A , Feshchenko A A 
Published: November 2019

Abstract
A continuous production process has a number of peculiar properties that affect the organization of technological equipment maintenance and repair aimed at the most efficient using of the service time, that is, the required number of equipment maintenance and repair with the required quality. It is necessary to have its own service department in large manufacturing enterprises, which includes an autonomous mechanical repair unit, allowing one to manufacture, restore parts, components and assemblies for the main technological chain, without the third parties help to ensure the continuous functioning of the repair service. This approach provides a significant reduction of service cost, production and part (unit) repair time, a more accurate account of the production conditions characteristics. However, as a rule, the organization of the repair and mechanical shops is at a low technological level due to the secondary role of such units within the manufacturing enterprise. It is possible to revise the approach to the organization of internal material, information flows with the using of modern modeling process methods. This is the purpose of this work. A chronometric measurement of the manufacturing process, the part restoration before and after the test process change were carried out, a new process simulation was produced by ARIS EPC, which allows one to analyze the action algorithm of the process participants to achieve this purpose.
Application solution for preparing business processes information for the 1C: Enterprise platform using ERwin process modeller
Authors: Kapulin D V , Russkikh P A , Moor I A 
Published: November 2019

Abstract
At present, it is obvious that an increase of the enterprise efficiency indicators is achievable in providing a process approach to manufacturing management. The process approach allows eliminating fragmentation in flow of works, organizational and informational gaps, duplication of functions, inefficient use of material and human resources, as well as significantly reducing transaction costs. However, it should be noted that its successful implementation is a multi-step problem, which takes significant time, labor and material costs. It is important to use CASE-tools for analysis of business processes in integration with corporate management systems (ERP-system) implementing these business processes. One of the well-known CASE-tools in structural analysis and design methodology is the ERwin Process Modeler. The article proposes a universal solution for transforming the process models of ERwin Process Modeler business into business process models in the ERP system environment «1C: Enterprise». The developed software-tool allows supporting and updating business processes without changing the configuration of the ERP system, and it is important for manufacturing enterprises with a complex technological process.
Efficiency enhancement method for distributed CAD systems in fog-computing environments
Authors: Kureychik V M , Safronenkova I B 
Published: November 2019

Abstract
This paper presents the new method, which is promising for circuit partitioning problem (CPP) solving in distributed computer-aided systems (DCADs) in terms of fog-computing environments. The circuit partitioning problem belongs to NP-hard one. Nowadays parallel computing is widely used for NP-hard problem solving. One of the most important criteria of DCADs performance is the speed of a workload distribution problem solving. The time needed for this procedure can be long enough to affect the computational process. Fog-computing environments have some peculiarities, which affect the workload distribution problem solving. A proposed method allows getting a solution of a satisfactory quality. The fundamental difference of this method is an ontological analysis, which is based on applied algorithms and available resources. It allows decreasing the search space of candidate nodes for workload distribution problem. The novelty of this paper is an ontological approach to workload distribution problem solving in DCADs in fog-computing environments.
The formation of the scope of architectural design in the context of using information technology
Authors: Saprykina N A 
Published: November 2019

Abstract
The article is devoted to an actual problem of determining the characteristics of formation and development trends of information space architecture. Using in architectural activities computer technologies has significantly changed the possibilities for architecture in general. This concept allows us to understand the importance and necessity of finding new trends in the scope of architectural design. The purpose of the article is to determine the overall direction of creating objects in the architecture and urbanism, which use the latest information technologies and resources. The leading approach to the study of this problem is based on the methods parametric modeling, information technology and virtual reality when forming the scope of architectural design. As a result of the research we defined innovative approaches to the scope of architectural design in the context of the use of information technology. Materials can be useful for the theory and practice of forming the environment which opens completely new possibilities in architecture and construction.
The numerical modeling of moving of dwarf galaxy through the intracluster medium
Authors: Kulikov Igor , Chernykh Igor , Karavaev Dmitry , Protasov Viktor , Prigarin Vladimir , Ulyanichev Ivan , Vorobyov Eduard , Tutukov Alexander 
Published: November 2019

Abstract
In this paper, we present the new results of mathematical modeling of dwarf galaxy movement through the intracluster medium (ICM). Our numerical model includes self-gravity hydrodynamics equation for the gas component of the galaxy and collisionless Boltzmann equation for the stellar component. We also included important sub-grid physics: star-formation, supernova feedback, stellar wind, cooling, and heating function, and non-equilibrium chemistry to ion helium hydride. As a result of our simulation, we provide density, pressure, and temperature for destruction processes in the high-density intracluster medium.
Numerical simulation of an anisotropic heat transfer in magnetized neutron stars with 3D basic operators method
Authors: Kondratyev I A , Moiseenko S G , Bisnovatyi-Kogan G S , Glushikhina M V 
Published: November 2019

Abstract
We have solved numerically a three dimensional boundary-value problem for a heat transfer equation in a magnetized neutron star crust with an updated tensorial heat conductivity coefficient. The temperature distribution in a neutron star crust in presence of a magnetic field was simulated. To calculate the surface temperature distribution, we have constructed a local one-dimensional plane-parallel model of a magnetized outer envelope of the neutron star and used it as an outer boundary condition for 3D problem to find a self-consistent solution.
This problem was solved with our extension of a basic (support) operators numerical method on a tetrahedral mesh. The idea of operator approach consists of inclusion the boundary conditions into difference form of the solving problem and its formulation as one operator equation. The finite difference operators are constructed in the way to fulfill corresponding relations between continuous operators (for example, div(curl)=0, div is conjugated to -grad so div(grad) is self-conjugated etc.). Such approach allows to obtain completely conservative implicit finite difference schemes. Efficient iterative methods can be used to find the solution because constructed matrixes have good properties, such as symmetry and positive definiteness.
Chemistry of ion injection in supernova remnant shocks: hybrid simulations in the light of He/C/O data from AMS-02
Authors: Hanusch Adrian , Liseykina Tatiana V. , Malkov Mikhail A. 
Published: November 2019

Abstract
The high precision spectrometry of galactic cosmic rays (CR), e.g. PAMELA experiment [1], accurately determined an approximately 0.1 difference between the rigidity spectral indices of protons and He ions. Similar deviations have been indicated earlier by other experiments [2] confirmed by the recent high-fidelity AMS-02 measurements [3]. These findings widen the window into a complicated selection process whereby collisionless shocks, such as supernova remnant (SNR) blast waves, extract different chemical elements from an interstellar matter mix. The similarity of He/p, C/p, and O/p rigidity spectra demonstrated by AMS-02 has provided new evidence that injection is a mass-to-charge (A/Z) dependent process. We investigate the particle injection into the diffusive shock acceleration using one- and two-dimensional self-consistent hybrid simulations. Our 1D simulations prove that an SNR shock can modify the chemical composition of accelerated CRs by preferentially extracting them from a homogeneous background plasma without additional, largely untestable assumptions. Our results confirm the earlier theoretical predictions of how the efficiency of injection depends on the shock Mach number MA
. They show that selection rate of different ion species increases with A/Z, saturates, and peaks as a function of MA
. The 2D simulations also evidence a deviation from the linear selection rate vs A/Z trend, pointing towards a saturation for higher A/Z. The integrated SNR rigidity spectrum for proton-to-helium flux ratio, obtained by the convolution of the time-dependent injection rates of protons and He ions with a decreasing shock strength over the active lives of SNRs, compares well with the AMS-02 and PAMELA data. The numerical results [4] correctly predict the decrease in p/He flux ratio with increasing rigidity at exactly the rate measured in the experiments for ℜ > 10 GV. Only at lower rigidities, ℜ < 10 GV, the difference between the data and our predictions becomes noticeable. Whether this deviation comes from the propagation through the interstellar medium or solar modulation, remains unclear. Except for this uncertainty, the suggested mechanism for A/Z-dependence of the injection fully explains the measured p/He ratio.
Parallel Realization of the Hybrid Model Code for Numerical Simulation of Plasma Dynamics
Authors: Boronina M A , Chernykh I G , Genrikh E A , Vshivkov V A 
Published: November 2019

Abstract
The work is devoted to a parallel realization of a hybrid model for study of plasma dynamics in axially symmetric open magnetic traps. The model is based on MHD approximation for electron component of the plasma and on the kinetic approach for ion component. In the model the particle-in-cells method (PIC) with explicit numerical schemes on staggered grids for the cylindrical coordinate system is applied. The permanent injection of the particles, the long characteristic times, the necessary grid resolution and the conditional stability of the method required development of parallel version of the algorithm. In the parallelization we use the mixed decomposition with static load balancing. We present the parallel algorithm as well as results of the computational experiments on plasma dynamics in regime of diamagnetic confinement in an open magnetic trap.
Parallel Algorithm for Supercomputing Simulation of Dust-Gaseous Gravitating Systems Using Particle-In-Cell and SPH Methods
Authors: Snytnikov N.V. , Stoyanovskaya O.P. , Glushko T.A. 
Published: November 2019

Abstract
We present a supercomputer numerical model for simulating 3D dynamics of dust-gas gravitating circumstellar disk. The model combines SPH method for solving gas dynamical equations, particle-in-cell (PIC) method for solving Vlasov equation, and convolution FFT-based grid method for solving Poisson equation. The approach is based on 3D domain decomposition, sorting of particles with regard to grid cell, and transferring necessary amount of particles between subdomains. The algorithm is aimed to be run on supercomputers with distributed memory and on hybrid supercomputers.
Divergence-free finite-difference method for 2D ideal MHD
Authors: Avdeeva E.N. , Lukin V.V. 
Published: November 2019

Abstract
The divergence-free finite-difference scheme for 2d ideal MHD using triangular unstructured staggered grids is described. In this approach the density, pressure and velocity fields are attributed to grid cells and magnetic field is defined by its normal components in cells edges. The HLLD approximate Riemann solver is used to compute the numerical flux of gas-dynamics variables at edges. It also provides the electrical field values used to compute the magnetic field. The magnetic field is interpolated into the cells using Raviart — Thomas basis functions. The algorythm is implemented in parallel numerical code. The method is tested on several well-known two-dimensional MHD problems.
A multi-scale and GIS-based investigation of climate change effects on urban climate and building energy demand for the city of Stuttgart
Authors: Ali-Toudert Fazia , Ji Limei 
Published: November 2019

Abstract
This paper presents a multi-scale and GIS-based investigation approach whose goal is to quantify the consequences of a climate change scenario (2041-2050) on the energy demand of buildings by comparison to a past scenario (1991-2000) applied to the city of Stuttgart. Energy simulations are made at building scale while taking into account the surrounding urban microclimates. The investigation method combines 1) numerical modelling using TEB and TRNSYS, 2) design of experiments (DOE) statistical analysis for data pre- and post-processing, and 3) GIS techniques. The outcome of the study is the heating and cooling energy demands summed up at city block level and displayed in 2D GIS maps. The results reveal that i) warmer urban microclimates occur, ii) with less heating and more cooling of buildings required if future versus past reference climate data are used. Spatial differences in the results within the city are found depending on the geometrical and thermal characteristics of the individual city blocks and buildings.